improved nested call correctness, register allocations, renamed project files
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package pp.s1184725.boppi;
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import java.util.*;
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import org.antlr.v4.runtime.ParserRuleContext;
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import org.antlr.v4.runtime.RuleContext;
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import org.antlr.v4.runtime.tree.*;
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import pp.iloc.model.*;
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import pp.s1184725.boppi.BasicParser.*;
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public class BoppiBasicGenerator extends BasicBaseVisitor<Void> {
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	private static final int ARBASESIZE = 8;
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	public Program prog;
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	private Annotations an;
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	private int regNum;
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	private final Reg tempArp = new Reg("ART"), arp = new Reg("ARP"), resultReg = new Reg("RES");
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	/**
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	 * Maps operator tokens to ILOC opcodes.
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	 */
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	private static Map<Integer, OpCode> ops = new HashMap<Integer, OpCode>() {
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		private static final long serialVersionUID = 8979722313842633807L;
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		{
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			put(BasicLexer.AND, OpCode.and);
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			put(BasicLexer.DIVIDE, OpCode.div);
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			put(BasicLexer.EQ, OpCode.cmp_EQ);
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			put(BasicLexer.GT, OpCode.cmp_GT);
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			put(BasicLexer.GTE, OpCode.cmp_GE);
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			put(BasicLexer.LEQ, OpCode.cmp_LE);
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			put(BasicLexer.LT, OpCode.cmp_LT);
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			put(BasicLexer.MINUS, OpCode.sub);
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			put(BasicLexer.MULTIPLY, OpCode.mult);
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			put(BasicLexer.NEQ, OpCode.cmp_NE);
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			put(BasicLexer.PLUS, OpCode.add);
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			put(BasicLexer.OR, OpCode.or);
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		}
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	};
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	/**
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	 * Creates a new generator with the given variable annotations.
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	 * 
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	 * @param annotations
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	 *            the annotation object to use during generation
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	 */
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	public BoppiBasicGenerator(Annotations annotations) {
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		an = annotations;
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		prog = new Program();
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		regNum = 0;
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	}
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	/**
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	 * Retrieves a register for a given tree node.
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	 * 
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	 * @param parseTree
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	 *            the tree node
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	 * @return a register for the tree node
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	 */
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	private Reg getReg(ParseTree parseTree) {
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		Reg reg = an.registers.get(parseTree);
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		if (reg == null) {
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			reg = new Reg("r_" + (regNum++));
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			an.registers.put(parseTree, reg);
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		}
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		return reg;
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	}
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	/**
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	 * Attaches the register used in the {@code source} tree node to the
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	 * {@link destination} node.
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	 * 
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	 * @param source
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	 *            the node to retrieve the register from
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	 * @param destination
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	 *            the node to copy the register to
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	 * @return the register that was copied
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	 */
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	private Reg copyReg(ParseTree source, ParseTree destination) {
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		Reg reg = an.registers.get(source);
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		an.registers.put(destination, reg);
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		return reg;
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	}
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	private <T> Reg getVar(ParserRuleContext node, Variable<T> var) {
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		int difference = an.function.get(node).getDepth() + 1 - var.getDepth();
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		if (difference > 0) {
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			emit(node, OpCode.i2i, arp, tempArp);
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			while (difference-- > 0)
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				emit(node, OpCode.loadAI, tempArp, new Num(-4), tempArp);
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			return tempArp;
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		} else
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			return arp;
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	}
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	/**
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	 * Constructs an operation from the parameters and adds it to the program
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	 * under construction.
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	 */
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	private Op emit(ParserRuleContext ctx, Label label, OpCode opCode, Operand... args) {
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		Op result = new Op(label, opCode, args);
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		result.setComment(ctx.getText());
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		this.prog.addInstr(result);
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		return result;
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	}
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	/**
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	 * Constructs an operation from the parameters and adds it to the program
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	 * under construction.
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	 */
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	private Op emit(ParserRuleContext ctx, OpCode opCode, Operand... args) {
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		return emit(ctx, (Label) null, opCode, args);
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	}
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	@Override
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	public Void visitChildren(RuleNode tree) {
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		super.visitChildren(tree);
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		if (an.registers.get(tree) == null)
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			for (int i = tree.getChildCount() - 1; i >= 0; i--)
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				if (tree.getChild(i) instanceof RuleContext) {
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					copyReg(tree.getChild(i), tree);
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					break;
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				}
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		return null;
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	}
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	@Override
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	public Void visitProgram(ProgramContext ctx) {
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		emit(ctx, OpCode.loadI, new Num(0), tempArp);
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		emit(ctx, OpCode.loadI, new Num(0), arp);
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		return visitChildren(ctx);
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	}
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	@Override
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	public Void visitAssign(AssignContext ctx) {
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		visit(ctx.singleExpr());
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		copyReg(ctx.singleExpr(), ctx);
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		if (SimpleType.CHAR.equals(an.types.get(ctx)))
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			emit(ctx, OpCode.cstoreAI, getReg(ctx), getVar(ctx.variable(), an.variables.get(ctx.variable())),
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					new Num(an.variables.get(ctx.variable()).getOffset()));
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		else
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			emit(ctx, OpCode.storeAI, getReg(ctx), getVar(ctx.variable(), an.variables.get(ctx.variable())),
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					new Num(an.variables.get(ctx.variable()).getOffset()));
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		return null;
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	}
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	@Override
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	public Void visitCall(CallContext ctx) {
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		Variable<Type> function = an.variables.get(ctx.variable());
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		FunctionType parameters = ((FunctionType) function.getType());
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		Reg temp = new Reg("r__");
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		visit(ctx.variable());
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		emit(ctx.variable(), OpCode.loadAI, getVar(ctx.variable(), an.variables.get(ctx.variable())),
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				new Num(an.variables.get(ctx.variable()).getOffset()), temp);
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		emit(ctx.variable(), OpCode.push, temp);
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		for (int i = 0; i < ctx.expr().size(); i++) {
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			visit(ctx.expr(i));
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			if (SimpleType.CHAR.equals(parameters.getParameters().get(i)))
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				emit(ctx.expr(i), OpCode.cpush, getReg(ctx.expr(i)));
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			else
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				emit(ctx.expr(i), OpCode.push, getReg(ctx.expr(i)));
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		}
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		emit(ctx.variable(), OpCode.addI, arp,
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				new Num(((FunctionType) an.function.get(ctx).getType()).getLocalDataSize() + ARBASESIZE), tempArp);
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		for (int i = ctx.expr().size() - 1; i >= 0; i--) {
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			if (SimpleType.CHAR.equals(parameters.getParameters().get(i))) {
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				emit(ctx.expr(i), OpCode.cpop, temp);
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				emit(ctx.expr(i), OpCode.cstoreAI, temp, tempArp, new Num(parameters.getOffsets().get(i)));
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			} else {
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				emit(ctx.expr(i), OpCode.pop, temp);
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				emit(ctx.expr(i), OpCode.storeAI, temp, tempArp, new Num(parameters.getOffsets().get(i)));
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			}
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		}
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		emit(ctx.variable(), OpCode.storeAI, arp, tempArp, new Num(-4));
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		Label label = new Label("ret" + ctx.hashCode());
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		emit(ctx.variable(), OpCode.loadI, new Num(label), temp);
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		emit(ctx.variable(), OpCode.storeAI, temp, tempArp, new Num(-8));
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		emit(ctx, OpCode.i2i, tempArp, arp);
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		emit(ctx.variable(), OpCode.pop, temp);
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		emit(ctx, OpCode.jump, temp);
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		emit(ctx, label, OpCode.loadAI, arp, new Num(-4), arp);
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		an.registers.put(ctx, resultReg);
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		return null;
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	}
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	@Override
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	public Void visitFuncDeclare(FuncDeclareContext ctx) {
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		Reg temp = new Reg("r__");
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		Label skip = new Label("s" + ctx.hashCode());
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		emit(ctx, OpCode.jumpI, skip);
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		int targetAddress = emit(ctx, OpCode.nop).getLine();
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		visit(ctx.body);
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		copyReg(ctx.body, ctx);
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		if (SimpleType.CHAR.equals(an.types.get(ctx.body)))
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			emit(ctx, OpCode.c2c, getReg(ctx), resultReg);
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		else
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			emit(ctx, OpCode.i2i, getReg(ctx), resultReg);
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		emit(ctx, OpCode.loadAI, arp, new Num(-8), temp);
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		emit(ctx, OpCode.jump, temp);
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		emit(ctx, skip, OpCode.loadI, new Num(targetAddress), temp);
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		emit(ctx, OpCode.storeAI, temp, getVar(ctx, an.variables.get(ctx)), new Num(an.variables.get(ctx).getOffset()));
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		return null;
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	}
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	@Override
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	public Void visitBool(BoolContext ctx) {
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		emit(ctx, OpCode.loadI, new Num(ctx.TRUE() != null ? 1 : 0), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitNumber(NumberContext ctx) {
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		emit(ctx, OpCode.loadI, new Num(Integer.parseInt(ctx.LITERAL10().getText())), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitInfix1(Infix1Context ctx) {
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		visitChildren(ctx);
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		emit(ctx, ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitInfix2(Infix2Context ctx) {
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		visitChildren(ctx);
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		emit(ctx, ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitInfix3(Infix3Context ctx) {
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		visitChildren(ctx);
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		emit(ctx, ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitInfix4(Infix4Context ctx) {
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		visitChildren(ctx);
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		emit(ctx, OpCode.and, getReg(ctx.lhs), getReg(ctx.rhs), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitInfix5(Infix5Context ctx) {
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		visitChildren(ctx);
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		emit(ctx, OpCode.or, getReg(ctx.lhs), getReg(ctx.rhs), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitPrefix1(Prefix1Context ctx) {
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		visitChildren(ctx);
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		switch (ctx.op.getType()) {
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		case BasicLexer.MINUS:
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			emit(ctx, OpCode.rsubI, getReg(ctx.singleExpr()), new Num(0), getReg(ctx));
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		}
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		return null;
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	}
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	@Override
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	public Void visitVar(VarContext ctx) {
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		if (SimpleType.CHAR.equals(an.types.get(ctx)))
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			emit(ctx, OpCode.cloadAI, getVar(ctx.variable(), an.variables.get(ctx.variable())),
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					new Num(an.variables.get(ctx.variable()).getOffset()), getReg(ctx));
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		else
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			emit(ctx, OpCode.loadAI, getVar(ctx.variable(), an.variables.get(ctx.variable())),
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					new Num(an.variables.get(ctx.variable()).getOffset()), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitChar(CharContext ctx) {
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		emit(ctx, OpCode.loadI, new Num(ctx.CHAR().getText().codePointAt(1)), getReg(ctx));
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		emit(ctx, OpCode.i2c, getReg(ctx), getReg(ctx));
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		return null;
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	}
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	@Override
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	public Void visitRead(ReadContext ctx) {
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		for (VariableContext expr : ctx.variable()) {
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			visit(expr);
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			if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
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				emit(ctx, OpCode.in, new Str(""), getReg(ctx));
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				emit(ctx, OpCode.storeAI, getReg(ctx), getVar(expr, an.variables.get(expr)),
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						new Num(an.variables.get(expr).getOffset()));
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			} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
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				// Get input until at least 1 character
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				Label getTarget = new Label("lcin_l" + ctx.hashCode());
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				Label continueTarget = new Label("lcin_e" + ctx.hashCode());
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				Reg countReg = new Reg("tempReg");
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				emit(ctx, getTarget, OpCode.cin, new Str(""));
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				emit(ctx, OpCode.pop, countReg);
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				emit(ctx, OpCode.cbr, countReg, continueTarget, getTarget);
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				// Get character
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				emit(ctx, continueTarget, OpCode.cpop, getReg(ctx));
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				emit(ctx, OpCode.cstoreAI, getReg(ctx), getVar(expr, an.variables.get(expr)),
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						new Num(an.variables.get(expr).getOffset()));
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				// Pop all remaining characters
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				Label loopTarget = new Label("lcpop_l" + ctx.hashCode());
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				Label iterTarget = new Label("lcpop_c" + ctx.hashCode());
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				Label stopTarget = new Label("lcpop_e" + ctx.hashCode());
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				Reg tempReg2 = new Reg("tempReg2");
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				emit(ctx, loopTarget, OpCode.subI, countReg, new Num(1), countReg);
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				emit(ctx, OpCode.cbr, countReg, iterTarget, stopTarget);
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				emit(ctx, iterTarget, OpCode.cpop, tempReg2);
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				emit(ctx, OpCode.jumpI, loopTarget);
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				emit(ctx, stopTarget, OpCode.nop);
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			} else {
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				emit(ctx, OpCode.out, new Str("Unknown type: "), an.registers.get(expr));
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			}
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		}
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		return null;
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	}
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	@Override
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	public Void visitIf(IfContext ctx) {
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		Label toTrue = new Label("if_t" + ctx.hashCode());
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		Label toFalse = new Label("if_f" + ctx.hashCode());
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		Label toEnd = new Label("if_e" + ctx.hashCode());
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		visit(ctx.cond);
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		if (ctx.onFalse == null) {
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			emit(ctx, OpCode.cbr, getReg(ctx.cond), toTrue, toEnd);
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			emit(ctx, toTrue, OpCode.nop);
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			visit(ctx.onTrue);
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		||||
		} else {
 | 
			
		||||
			emit(ctx, OpCode.cbr, getReg(ctx.cond), toTrue, toFalse);
 | 
			
		||||
 | 
			
		||||
			emit(ctx, toTrue, OpCode.nop);
 | 
			
		||||
			visit(ctx.onTrue);
 | 
			
		||||
			if (an.types.get(ctx) != SimpleType.VOID)
 | 
			
		||||
				emit(ctx, OpCode.i2i, getReg(ctx.onTrue), getReg(ctx));
 | 
			
		||||
			emit(ctx, OpCode.jumpI, toEnd);
 | 
			
		||||
 | 
			
		||||
			emit(ctx, toFalse, OpCode.nop);
 | 
			
		||||
			visit(ctx.onFalse);
 | 
			
		||||
			if (an.types.get(ctx) != SimpleType.VOID)
 | 
			
		||||
				emit(ctx, OpCode.i2i, getReg(ctx.onFalse), getReg(ctx));
 | 
			
		||||
 | 
			
		||||
		}
 | 
			
		||||
		emit(ctx, toEnd, OpCode.nop);
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitWhile(WhileContext ctx) {
 | 
			
		||||
		Label toLoop = new Label("while_t" + ctx.hashCode());
 | 
			
		||||
		Label toCond = new Label("while_f" + ctx.hashCode());
 | 
			
		||||
		Label toEnd = new Label("while_e" + ctx.hashCode());
 | 
			
		||||
 | 
			
		||||
		emit(ctx, OpCode.jumpI, toCond);
 | 
			
		||||
		emit(ctx, toLoop, OpCode.nop);
 | 
			
		||||
		visit(ctx.onTrue);
 | 
			
		||||
		emit(ctx, toCond, OpCode.nop);
 | 
			
		||||
		visit(ctx.cond);
 | 
			
		||||
		emit(ctx, OpCode.cbr, getReg(ctx.cond), toLoop, toEnd);
 | 
			
		||||
		emit(ctx, toEnd, OpCode.nop);
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitWrite(WriteContext ctx) {
 | 
			
		||||
		for (ExprContext expr : ctx.expr()) {
 | 
			
		||||
			visit(expr);
 | 
			
		||||
			if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
 | 
			
		||||
				emit(ctx, OpCode.out, new Str(""), getReg(expr));
 | 
			
		||||
			} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
 | 
			
		||||
				Reg tempReg = new Reg("tempReg");
 | 
			
		||||
				emit(ctx, OpCode.cpush, getReg(expr));
 | 
			
		||||
				emit(ctx, OpCode.loadI, new Num(1), tempReg);
 | 
			
		||||
				emit(ctx, OpCode.push, tempReg);
 | 
			
		||||
				emit(ctx, OpCode.cout, new Str(""));
 | 
			
		||||
			} else {
 | 
			
		||||
				emit(ctx, OpCode.out, new Str("Unknown type: "), getReg(expr));
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		copyReg(ctx.expr(0), ctx);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -1,38 +1,45 @@
 | 
			
		|||
package pp.s1184725.boppi;
 | 
			
		||||
 | 
			
		||||
import java.util.ArrayList;
 | 
			
		||||
import java.util.EmptyStackException;
 | 
			
		||||
import java.util.List;
 | 
			
		||||
import java.util.*;
 | 
			
		||||
import java.util.logging.Logger;
 | 
			
		||||
import java.util.stream.Collectors;
 | 
			
		||||
 | 
			
		||||
import org.antlr.v4.runtime.ParserRuleContext;
 | 
			
		||||
import org.antlr.v4.runtime.tree.ParseTree;
 | 
			
		||||
 | 
			
		||||
import pp.s1184725.boppi.BasicParser.*;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiBaseVisitor;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiLexer;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiParser.*;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * This class performs type checking and variable assignment on a bare parse
 | 
			
		||||
 * tree.
 | 
			
		||||
 *
 | 
			
		||||
 */
 | 
			
		||||
public class BoppiBasicChecker extends BasicBaseVisitor<Type> {
 | 
			
		||||
public class BoppiChecker extends BoppiBaseVisitor<Type> {
 | 
			
		||||
	private CachingSymbolTable<Type> symbols;
 | 
			
		||||
	private Annotations an;
 | 
			
		||||
	private Logger log;
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Creates a new checker with a logger and an object to link types and
 | 
			
		||||
	 * variables to parse tree nodes.
 | 
			
		||||
	 * Checks and annotates a program. Problems are reported to the given
 | 
			
		||||
	 * logger.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param ast
 | 
			
		||||
	 *            the program's AST
 | 
			
		||||
	 * @param logger
 | 
			
		||||
	 *            the logger object to write warnings and errors to
 | 
			
		||||
	 * @param annotations
 | 
			
		||||
	 *            the annotations object
 | 
			
		||||
	 * @return the generated annotations
 | 
			
		||||
	 */
 | 
			
		||||
	public BoppiBasicChecker(Logger logger, Annotations annotations) {
 | 
			
		||||
	public static Annotations checkProgram(ParseTree ast, Logger logger) {
 | 
			
		||||
		BoppiChecker checker = new BoppiChecker(logger);
 | 
			
		||||
		checker.visit(ast);
 | 
			
		||||
		return checker.an;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	protected BoppiChecker(Logger logger) {
 | 
			
		||||
		symbols = new CachingSymbolTable<>();
 | 
			
		||||
		an = annotations;
 | 
			
		||||
		an = new Annotations();
 | 
			
		||||
		log = logger;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -116,7 +123,7 @@ public class BoppiBasicChecker extends BasicBaseVisitor<Type> {
 | 
			
		|||
	public Type visitFuncDeclare(FuncDeclareContext ctx) {
 | 
			
		||||
		try {
 | 
			
		||||
			List<Type> parameterTypes = ctx.type().stream().skip(1).map(this::visit).collect(Collectors.toList());
 | 
			
		||||
			FunctionType type = new FunctionType(visit(ctx.result), parameterTypes, symbols.functionDepth);
 | 
			
		||||
			FunctionType type = new FunctionType(visit(ctx.result), parameterTypes);
 | 
			
		||||
			Variable<Type> func = symbols.put(ctx.name.getText(), type);
 | 
			
		||||
			an.variables.put(ctx, func);
 | 
			
		||||
			an.currentFunction.push(func);
 | 
			
		||||
| 
						 | 
				
			
			@ -179,10 +186,10 @@ public class BoppiBasicChecker extends BasicBaseVisitor<Type> {
 | 
			
		|||
		checkConstraint(lht, rht, ctx);
 | 
			
		||||
 | 
			
		||||
		switch (ctx.op.getType()) {
 | 
			
		||||
		case BasicLexer.LT:
 | 
			
		||||
		case BasicLexer.LEQ:
 | 
			
		||||
		case BasicLexer.GTE:
 | 
			
		||||
		case BasicLexer.GT:
 | 
			
		||||
		case BoppiLexer.LT:
 | 
			
		||||
		case BoppiLexer.LEQ:
 | 
			
		||||
		case BoppiLexer.GTE:
 | 
			
		||||
		case BoppiLexer.GT:
 | 
			
		||||
			checkConstraint(lht, SimpleType.INT, ctx);
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -220,12 +227,12 @@ public class BoppiBasicChecker extends BasicBaseVisitor<Type> {
 | 
			
		|||
		Type type = visit(ctx.singleExpr());
 | 
			
		||||
 | 
			
		||||
		switch (ctx.op.getType()) {
 | 
			
		||||
		case BasicLexer.NOT:
 | 
			
		||||
		case BoppiLexer.NOT:
 | 
			
		||||
			checkConstraint(type, SimpleType.BOOL, ctx.singleExpr());
 | 
			
		||||
			break;
 | 
			
		||||
 | 
			
		||||
		case BasicLexer.PLUS:
 | 
			
		||||
		case BasicLexer.MINUS:
 | 
			
		||||
		case BoppiLexer.PLUS:
 | 
			
		||||
		case BoppiLexer.MINUS:
 | 
			
		||||
			checkConstraint(type, SimpleType.INT, ctx.singleExpr());
 | 
			
		||||
			break;
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -235,7 +242,7 @@ public class BoppiBasicChecker extends BasicBaseVisitor<Type> {
 | 
			
		|||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Type visitProgram(ProgramContext ctx) {
 | 
			
		||||
		FunctionType main = new FunctionType(SimpleType.VOID, new ArrayList<>(), symbols.functionDepth);
 | 
			
		||||
		FunctionType main = new FunctionType(SimpleType.VOID, new ArrayList<>());
 | 
			
		||||
		an.currentFunction.push(new Variable<Type>(main, 0, 0));
 | 
			
		||||
		main.setLocalDataSize(symbols.withFunctionScope(() -> super.visitProgram(ctx)));
 | 
			
		||||
		return null;
 | 
			
		||||
| 
						 | 
				
			
			@ -0,0 +1,605 @@
 | 
			
		|||
package pp.s1184725.boppi;
 | 
			
		||||
 | 
			
		||||
import java.util.*;
 | 
			
		||||
import java.util.logging.Logger;
 | 
			
		||||
import java.util.stream.Collectors;
 | 
			
		||||
 | 
			
		||||
import org.antlr.v4.runtime.ParserRuleContext;
 | 
			
		||||
import org.antlr.v4.runtime.tree.*;
 | 
			
		||||
import org.apache.commons.lang3.StringUtils;
 | 
			
		||||
 | 
			
		||||
import pp.iloc.eval.Machine;
 | 
			
		||||
import pp.iloc.model.*;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiBaseVisitor;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiLexer;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiParser.*;
 | 
			
		||||
 | 
			
		||||
public class BoppiGenerator extends BoppiBaseVisitor<Void> {
 | 
			
		||||
	private static final int ARBASESIZE = 16;
 | 
			
		||||
	private static final Operand ZERO = new Num(0);
 | 
			
		||||
	private static final Operand OFFSET_ARP = new Num(-4), OFFSET_RETURN_ADDR = new Num(-8),
 | 
			
		||||
			OFFSET_RETURN_VAL = new Num(-12), OFFSET_AL = new Num(-16);
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Recommended number of registers to use before throwing a warning.
 | 
			
		||||
	 */
 | 
			
		||||
	public static int RECOMMENDED_REGISTER_COUNT = 10;
 | 
			
		||||
	private Program prog;
 | 
			
		||||
	private Annotations an;
 | 
			
		||||
	private int regNum;
 | 
			
		||||
	private final Reg tempArp = new Reg("ART"), arp = Machine.ARP_REG;
 | 
			
		||||
	private List<Reg> regFree, regInUse;
 | 
			
		||||
	private Logger logger;
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Maps operator tokens to ILOC opcodes.
 | 
			
		||||
	 */
 | 
			
		||||
	private static Map<Integer, OpCode> ops = new HashMap<Integer, OpCode>() {
 | 
			
		||||
		private static final long serialVersionUID = 8979722313842633807L;
 | 
			
		||||
 | 
			
		||||
		{
 | 
			
		||||
			put(BoppiLexer.AND, OpCode.and);
 | 
			
		||||
			put(BoppiLexer.DIVIDE, OpCode.div);
 | 
			
		||||
			put(BoppiLexer.EQ, OpCode.cmp_EQ);
 | 
			
		||||
			put(BoppiLexer.GT, OpCode.cmp_GT);
 | 
			
		||||
			put(BoppiLexer.GTE, OpCode.cmp_GE);
 | 
			
		||||
			put(BoppiLexer.LEQ, OpCode.cmp_LE);
 | 
			
		||||
			put(BoppiLexer.LT, OpCode.cmp_LT);
 | 
			
		||||
			put(BoppiLexer.MINUS, OpCode.sub);
 | 
			
		||||
			put(BoppiLexer.MULTIPLY, OpCode.mult);
 | 
			
		||||
			put(BoppiLexer.NEQ, OpCode.cmp_NE);
 | 
			
		||||
			put(BoppiLexer.PLUS, OpCode.add);
 | 
			
		||||
			put(BoppiLexer.OR, OpCode.or);
 | 
			
		||||
		}
 | 
			
		||||
	};
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Creates a new generator with the given variable annotations and attaches
 | 
			
		||||
	 * the given logger.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param ast
 | 
			
		||||
	 *            the program's AST
 | 
			
		||||
	 * @param annotations
 | 
			
		||||
	 *            the annotation object to use during generation
 | 
			
		||||
	 * @param logger
 | 
			
		||||
	 *            the logger to report errors to
 | 
			
		||||
	 * @return an ILOC program generated from the AST
 | 
			
		||||
	 */
 | 
			
		||||
	public static Program generateProgram(ParseTree ast, Annotations annotations, Logger logger) {
 | 
			
		||||
		BoppiGenerator generator = new BoppiGenerator(annotations, logger);
 | 
			
		||||
		generator.visit(ast);
 | 
			
		||||
		return generator.prog;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	protected BoppiGenerator(Annotations annotations, Logger logger) {
 | 
			
		||||
		an = annotations;
 | 
			
		||||
		prog = new Program();
 | 
			
		||||
		regNum = 0;
 | 
			
		||||
		regFree = new ArrayList<>();
 | 
			
		||||
		regInUse = new ArrayList<>();
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	private Reg makeReg(ParserRuleContext ctx) {
 | 
			
		||||
		Reg reg;
 | 
			
		||||
		if (regFree.isEmpty()) {
 | 
			
		||||
			reg = new Reg("__" + (regInUse.size() + 1));
 | 
			
		||||
			regInUse.add(reg);
 | 
			
		||||
 | 
			
		||||
			if (regInUse.size() > 10)
 | 
			
		||||
				logger.warning(
 | 
			
		||||
						String.format("Using more than 10 registers at %d:%d. Consider rebalancing your expressions.",
 | 
			
		||||
								ctx.start.getLine(), ctx.start.getCharPositionInLine()));
 | 
			
		||||
		} else {
 | 
			
		||||
			if (regFree.remove(an.registers.get(ctx)))
 | 
			
		||||
				reg = an.registers.get(ctx);
 | 
			
		||||
			else
 | 
			
		||||
				reg = regFree.remove(0);
 | 
			
		||||
			regInUse.add(reg);
 | 
			
		||||
		}
 | 
			
		||||
		an.registers.put(ctx, reg);
 | 
			
		||||
		return reg;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	private void freeReg(ParserRuleContext ctx) {
 | 
			
		||||
		Reg reg = an.registers.get(ctx);
 | 
			
		||||
		if (reg == null)
 | 
			
		||||
			return;
 | 
			
		||||
		if (!regInUse.contains(reg)) {
 | 
			
		||||
			logger.severe(getError(ctx, "INTERNAL: cannot free register %s since it is not in use.", reg.getName()));
 | 
			
		||||
		} else {
 | 
			
		||||
			regInUse.remove(reg);
 | 
			
		||||
			regFree.add(reg);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Retrieves a register for a given tree node.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param parseTree
 | 
			
		||||
	 *            the tree node
 | 
			
		||||
	 * @return a register for the tree node
 | 
			
		||||
	 */
 | 
			
		||||
	private Reg getReg(ParseTree parseTree) {
 | 
			
		||||
		Reg reg = an.registers.get(parseTree);
 | 
			
		||||
		if (reg == null) {
 | 
			
		||||
			if (Math.max(3, 4) > 2)
 | 
			
		||||
				throw new RuntimeException("???" + parseTree.getText());
 | 
			
		||||
			reg = new Reg("r_" + (regNum++));
 | 
			
		||||
			an.registers.put(parseTree, reg);
 | 
			
		||||
		}
 | 
			
		||||
		return reg;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Attaches the register used in the {@code source} tree node to the
 | 
			
		||||
	 * {@link destination} node.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param source
 | 
			
		||||
	 *            the node to retrieve the register from
 | 
			
		||||
	 * @param destination
 | 
			
		||||
	 *            the node to copy the register to
 | 
			
		||||
	 * @return the register that was copied
 | 
			
		||||
	 */
 | 
			
		||||
	private Reg copyReg(ParseTree source, ParseTree destination) {
 | 
			
		||||
		Reg reg = an.registers.get(source);
 | 
			
		||||
		an.registers.put(destination, reg);
 | 
			
		||||
		return reg;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	private Reg getVar(ParserRuleContext node) {
 | 
			
		||||
		Variable<Type> var = an.variables.get(node);
 | 
			
		||||
 | 
			
		||||
		if (var.getDepth() <= an.function.get(node).getDepth()) {
 | 
			
		||||
			emit("travelling ALs", OpCode.i2i, arp, tempArp);
 | 
			
		||||
			for (int i = var.getDepth(); i <= an.function.get(node).getDepth(); i++)
 | 
			
		||||
				emit(StringUtils.repeat(' ', i) + "\\", OpCode.loadAI, tempArp, OFFSET_AL, tempArp);
 | 
			
		||||
 | 
			
		||||
			return tempArp;
 | 
			
		||||
		} else
 | 
			
		||||
			return arp;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Constructs an operation from the parameters and adds it to the program
 | 
			
		||||
	 * under construction.
 | 
			
		||||
	 */
 | 
			
		||||
	private Op emit(String comment, Label label, OpCode opCode, Operand... args) {
 | 
			
		||||
		Op result = new Op(label, opCode, args);
 | 
			
		||||
		result.setComment(String.format("%-40s | %20s : %s", comment,
 | 
			
		||||
				regInUse.stream().map((reg) -> reg.getName().substring(2)).collect(Collectors.joining(" ")),
 | 
			
		||||
				regFree.stream().map((reg) -> reg.getName().substring(2)).collect(Collectors.joining(" "))));
 | 
			
		||||
		this.prog.addInstr(result);
 | 
			
		||||
		return result;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Constructs an operation from the parameters and adds it to the program
 | 
			
		||||
	 * under construction.
 | 
			
		||||
	 */
 | 
			
		||||
	private Op emit(String comment, OpCode opCode, Operand... args) {
 | 
			
		||||
		return emit(comment, (Label) null, opCode, args);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitBlock(BlockContext ctx) {
 | 
			
		||||
		super.visitBlock(ctx);
 | 
			
		||||
		copyReg(ctx.expr(), ctx);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitDeclare(DeclareContext ctx) {
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitParens(ParensContext ctx) {
 | 
			
		||||
		super.visitParens(ctx);
 | 
			
		||||
		copyReg(ctx.expr(), ctx);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitProgram(ProgramContext ctx) {
 | 
			
		||||
		emit("initialise temp ARP", OpCode.loadI, ZERO, tempArp);
 | 
			
		||||
 | 
			
		||||
		return visitChildren(ctx);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitExpr(ExprContext ctx) {
 | 
			
		||||
		for (int i = 0; i < ctx.singleExpr().size() - 1; i++) {
 | 
			
		||||
			visit(ctx.singleExpr(i));
 | 
			
		||||
			freeReg(ctx.singleExpr(i));
 | 
			
		||||
		}
 | 
			
		||||
		ParserRuleContext last = ctx.singleExpr(ctx.singleExpr().size() - 1);
 | 
			
		||||
		visit(last);
 | 
			
		||||
		copyReg(last, ctx);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitAssign(AssignContext ctx) {
 | 
			
		||||
		visit(ctx.singleExpr());
 | 
			
		||||
		copyReg(ctx.singleExpr(), ctx);
 | 
			
		||||
 | 
			
		||||
		if (SimpleType.CHAR.equals(an.types.get(ctx)))
 | 
			
		||||
			emit("to " + ctx.variable().getText(), OpCode.cstoreAI, getReg(ctx), getVar(ctx.variable()),
 | 
			
		||||
					new Num(an.variables.get(ctx.variable()).getOffset()));
 | 
			
		||||
		else
 | 
			
		||||
			emit("to " + ctx.variable().getText(), OpCode.storeAI, getReg(ctx), getVar(ctx.variable()),
 | 
			
		||||
					new Num(an.variables.get(ctx.variable()).getOffset()));
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitCall(CallContext ctx) {
 | 
			
		||||
		String base = "call " + ctx.variable().getText() + " - ";
 | 
			
		||||
		Variable<Type> function = an.variables.get(ctx.variable());
 | 
			
		||||
		FunctionType parameters = ((FunctionType) function.getType());
 | 
			
		||||
		visit(ctx.variable());
 | 
			
		||||
		freeReg(ctx.variable());
 | 
			
		||||
		emit(base + "target address", OpCode.loadAI, getVar(ctx.variable()),
 | 
			
		||||
				new Num(an.variables.get(ctx.variable()).getOffset()), makeReg(ctx));
 | 
			
		||||
		emit(base + "target address", OpCode.push, getReg(ctx));
 | 
			
		||||
		freeReg(ctx);
 | 
			
		||||
 | 
			
		||||
		for (int i = 0; i < ctx.expr().size(); i++) {
 | 
			
		||||
			visit(ctx.expr(i));
 | 
			
		||||
 | 
			
		||||
			if (SimpleType.CHAR.equals(parameters.getParameters().get(i)))
 | 
			
		||||
				emit(base + "param " + i, OpCode.cpush, getReg(ctx.expr(i)));
 | 
			
		||||
			else
 | 
			
		||||
				emit(base + "param " + i, OpCode.push, getReg(ctx.expr(i)));
 | 
			
		||||
			freeReg(ctx.expr(i));
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		emit(base + "set new ARP", OpCode.addI, arp,
 | 
			
		||||
				new Num(((FunctionType) an.function.get(ctx).getType()).getLocalDataSize() + ARBASESIZE), tempArp);
 | 
			
		||||
 | 
			
		||||
		makeReg(ctx);
 | 
			
		||||
		for (int i = ctx.expr().size() - 1; i >= 0; i--) {
 | 
			
		||||
			if (SimpleType.CHAR.equals(parameters.getParameters().get(i))) {
 | 
			
		||||
				emit(base + "param " + i, OpCode.cpop, getReg(ctx));
 | 
			
		||||
				emit(base + "param " + i, OpCode.cstoreAI, getReg(ctx), tempArp,
 | 
			
		||||
						new Num(parameters.getOffsets().get(i)));
 | 
			
		||||
			} else {
 | 
			
		||||
				emit(base + "param " + i, OpCode.pop, getReg(ctx));
 | 
			
		||||
				emit(base + "param " + i, OpCode.storeAI, getReg(ctx), tempArp,
 | 
			
		||||
						new Num(parameters.getOffsets().get(i)));
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		emit(base + "link caller ARP", OpCode.storeAI, arp, tempArp, OFFSET_ARP);
 | 
			
		||||
 | 
			
		||||
		emit(base + "travelling ALs", OpCode.i2i, arp, getReg(ctx));
 | 
			
		||||
		for (int i = an.variables.get(ctx.variable()).getDepth(); i <= an.function.get(ctx).getDepth(); i++)
 | 
			
		||||
			emit(base + StringUtils.repeat(' ', i) + "\\", OpCode.loadAI, getReg(ctx), OFFSET_AL, getReg(ctx));
 | 
			
		||||
		emit(base + "link caller AL", OpCode.storeAI, getReg(ctx), tempArp, OFFSET_AL);
 | 
			
		||||
 | 
			
		||||
		Label label = new Label("ret" + ctx.hashCode());
 | 
			
		||||
		emit(base + "load return address", OpCode.loadI, new Num(label), getReg(ctx));
 | 
			
		||||
		emit(base + "set return address", OpCode.storeAI, getReg(ctx), tempArp, OFFSET_RETURN_ADDR);
 | 
			
		||||
		emit(base + "move ARP", OpCode.i2i, tempArp, arp);
 | 
			
		||||
		emit(base + "target address", OpCode.pop, getReg(ctx));
 | 
			
		||||
		freeReg(ctx);
 | 
			
		||||
 | 
			
		||||
		Stack<Reg> inUse = new Stack<>();
 | 
			
		||||
		for (Reg reg : regInUse) {
 | 
			
		||||
			inUse.push(reg);
 | 
			
		||||
			emit(base + "register save " + reg.getName(), OpCode.push, reg);
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		emit(base + "execute", OpCode.jump, getReg(ctx));
 | 
			
		||||
 | 
			
		||||
		emit(base + "load result", label, OpCode.loadAI, arp, OFFSET_RETURN_VAL, makeReg(ctx));
 | 
			
		||||
		while (!inUse.isEmpty()) {
 | 
			
		||||
			Reg reg = inUse.pop();
 | 
			
		||||
			emit(base + "restoring register save " + reg.getName(), OpCode.pop, reg);
 | 
			
		||||
		}
 | 
			
		||||
		emit(base + "reset ARP", OpCode.loadAI, arp, OFFSET_ARP, arp);
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitFuncDeclare(FuncDeclareContext ctx) {
 | 
			
		||||
		String base = "define " + ctx.IDENTIFIER(0).getText() + " - ";
 | 
			
		||||
		Label skip = new Label("s" + ctx.hashCode());
 | 
			
		||||
		emit(base + "jump over body", OpCode.jumpI, skip);
 | 
			
		||||
		int targetAddress = emit(base + "entry point", OpCode.nop).getLine();
 | 
			
		||||
		visit(ctx.body);
 | 
			
		||||
		emit(base + "move result", OpCode.storeAI, getReg(ctx.body), arp, OFFSET_RETURN_VAL);
 | 
			
		||||
		freeReg(ctx.body);
 | 
			
		||||
		emit(base + "load return address", OpCode.loadAI, arp, OFFSET_RETURN_ADDR, makeReg(ctx));
 | 
			
		||||
		emit(base + "go to return address", OpCode.jump, getReg(ctx));
 | 
			
		||||
		emit(base + "load target address", skip, OpCode.loadI, new Num(targetAddress), getReg(ctx));
 | 
			
		||||
		emit(base + "set target address", OpCode.storeAI, getReg(ctx), getVar(ctx),
 | 
			
		||||
				new Num(an.variables.get(ctx).getOffset()));
 | 
			
		||||
		freeReg(ctx);
 | 
			
		||||
		an.registers.removeFrom(ctx);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitBool(BoolContext ctx) {
 | 
			
		||||
		emit(ctx.getText(), OpCode.loadI, new Num(ctx.TRUE() != null ? 1 : 0), makeReg(ctx));
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitNumber(NumberContext ctx) {
 | 
			
		||||
		emit(ctx.getText(), OpCode.loadI, new Num(Integer.parseInt(ctx.LITERAL10().getText())), makeReg(ctx));
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitInfix1(Infix1Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		emit(ctx.getChild(1).getText(), ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs),
 | 
			
		||||
				copyReg(ctx.lhs, ctx));
 | 
			
		||||
		freeReg(ctx.rhs);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitInfix2(Infix2Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		emit(ctx.getChild(1).getText(), ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs),
 | 
			
		||||
				copyReg(ctx.lhs, ctx));
 | 
			
		||||
		freeReg(ctx.rhs);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitInfix3(Infix3Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		emit(ctx.getChild(1).getText(), ops.get(ctx.op.getType()), getReg(ctx.lhs), getReg(ctx.rhs),
 | 
			
		||||
				copyReg(ctx.lhs, ctx));
 | 
			
		||||
		freeReg(ctx.rhs);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitInfix4(Infix4Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		emit(ctx.getChild(1).getText(), ops.get(ctx.AND().getSymbol().getType()), getReg(ctx.lhs), getReg(ctx.rhs),
 | 
			
		||||
				copyReg(ctx.lhs, ctx));
 | 
			
		||||
		freeReg(ctx.rhs);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitInfix5(Infix5Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		emit(ctx.getChild(1).getText(), ops.get(ctx.OR().getSymbol().getType()), getReg(ctx.lhs), getReg(ctx.rhs),
 | 
			
		||||
				copyReg(ctx.lhs, ctx));
 | 
			
		||||
		freeReg(ctx.rhs);
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitPrefix1(Prefix1Context ctx) {
 | 
			
		||||
		visitChildren(ctx);
 | 
			
		||||
		copyReg(ctx.singleExpr(), ctx);
 | 
			
		||||
 | 
			
		||||
		switch (ctx.op.getType()) {
 | 
			
		||||
		case BoppiLexer.MINUS:
 | 
			
		||||
			emit("unary -", OpCode.rsubI, getReg(ctx), ZERO, getReg(ctx));
 | 
			
		||||
		}
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitVar(VarContext ctx) {
 | 
			
		||||
		if (SimpleType.CHAR.equals(an.types.get(ctx)))
 | 
			
		||||
			emit("var " + ctx.variable().getText(), OpCode.cloadAI, getVar(ctx.variable()),
 | 
			
		||||
					new Num(an.variables.get(ctx.variable()).getOffset()), makeReg(ctx));
 | 
			
		||||
		else
 | 
			
		||||
			emit("var " + ctx.variable().getText(), OpCode.loadAI, getVar(ctx.variable()),
 | 
			
		||||
					new Num(an.variables.get(ctx.variable()).getOffset()), makeReg(ctx));
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitChar(CharContext ctx) {
 | 
			
		||||
		emit(ctx.getText(), OpCode.loadI, new Num(ctx.CHAR().getText().codePointAt(1)), makeReg(ctx));
 | 
			
		||||
		emit(ctx.getText(), OpCode.i2c, getReg(ctx), getReg(ctx));
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitRead(ReadContext ctx) {
 | 
			
		||||
		if (ctx.variable().size() > 1) {
 | 
			
		||||
			for (VariableContext expr : ctx.variable()) {
 | 
			
		||||
				visit(expr);
 | 
			
		||||
				if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
 | 
			
		||||
					emit("", OpCode.in, new Str(""), makeReg(ctx));
 | 
			
		||||
					emit("var " + expr.getText(), OpCode.storeAI, getReg(ctx), getVar(expr),
 | 
			
		||||
							new Num(an.variables.get(expr).getOffset()));
 | 
			
		||||
				} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
 | 
			
		||||
					// Get input until at least 1 character
 | 
			
		||||
					Label getTarget = new Label("lcin_l" + ctx.hashCode());
 | 
			
		||||
					Label continueTarget = new Label("lcin_e" + ctx.hashCode());
 | 
			
		||||
 | 
			
		||||
					Reg countReg = makeReg(ctx);
 | 
			
		||||
					makeReg(ctx);
 | 
			
		||||
 | 
			
		||||
					emit("", getTarget, OpCode.cin, new Str(""));
 | 
			
		||||
					emit("str length", OpCode.pop, countReg);
 | 
			
		||||
					emit("repeat if 0 length", OpCode.cbr, countReg, continueTarget, getTarget);
 | 
			
		||||
 | 
			
		||||
					// Get character
 | 
			
		||||
					emit("pop whole string", continueTarget, OpCode.cpop, getReg(ctx));
 | 
			
		||||
					emit("var " + expr.getText(), OpCode.cstoreAI, getReg(ctx), getVar(expr),
 | 
			
		||||
							new Num(an.variables.get(expr).getOffset()));
 | 
			
		||||
 | 
			
		||||
					// Pop all remaining characters
 | 
			
		||||
					Label loopTarget = new Label("lcpop_l" + ctx.hashCode());
 | 
			
		||||
					Label iterTarget = new Label("lcpop_c" + ctx.hashCode());
 | 
			
		||||
					Label stopTarget = new Label("lcpop_e" + ctx.hashCode());
 | 
			
		||||
					emit("pop remaining", loopTarget, OpCode.subI, countReg, new Num(1), countReg);
 | 
			
		||||
					emit("pop remaining", OpCode.cbr, countReg, iterTarget, stopTarget);
 | 
			
		||||
					emit("pop remaining", iterTarget, OpCode.cpop, getReg(ctx));
 | 
			
		||||
					emit("pop remaining", OpCode.jumpI, loopTarget);
 | 
			
		||||
					emit("pop remaining", stopTarget, OpCode.nop);
 | 
			
		||||
				} else {
 | 
			
		||||
					emit("????????", OpCode.out, new Str("Unknown type: "), copyReg(expr, ctx));
 | 
			
		||||
				}
 | 
			
		||||
				freeReg(ctx);
 | 
			
		||||
			}
 | 
			
		||||
		} else {
 | 
			
		||||
			VariableContext expr = ctx.variable(0);
 | 
			
		||||
			visit(expr);
 | 
			
		||||
			if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
 | 
			
		||||
				emit("", OpCode.in, new Str(""), makeReg(ctx));
 | 
			
		||||
				emit("var " + expr.getText(), OpCode.storeAI, getReg(ctx), getVar(expr),
 | 
			
		||||
						new Num(an.variables.get(expr).getOffset()));
 | 
			
		||||
			} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
 | 
			
		||||
				// Get input until at least 1 character
 | 
			
		||||
				Label getTarget = new Label("lcin_l" + ctx.hashCode());
 | 
			
		||||
				Label continueTarget = new Label("lcin_e" + ctx.hashCode());
 | 
			
		||||
 | 
			
		||||
				Reg countReg = makeReg(ctx);
 | 
			
		||||
				makeReg(ctx);
 | 
			
		||||
 | 
			
		||||
				emit("", getTarget, OpCode.cin, new Str(""));
 | 
			
		||||
				emit("str length", OpCode.pop, countReg);
 | 
			
		||||
				emit("repeat if 0 length", OpCode.cbr, countReg, continueTarget, getTarget);
 | 
			
		||||
 | 
			
		||||
				// Get character
 | 
			
		||||
				emit("pop whole string", continueTarget, OpCode.cpop, getReg(ctx));
 | 
			
		||||
				emit("var " + expr.getText(), OpCode.cstoreAI, getReg(ctx), getVar(expr),
 | 
			
		||||
						new Num(an.variables.get(expr).getOffset()));
 | 
			
		||||
 | 
			
		||||
				// Pop all remaining characters
 | 
			
		||||
				Label loopTarget = new Label("lcpop_l" + ctx.hashCode());
 | 
			
		||||
				Label iterTarget = new Label("lcpop_c" + ctx.hashCode());
 | 
			
		||||
				Label stopTarget = new Label("lcpop_e" + ctx.hashCode());
 | 
			
		||||
				emit("pop remaining", loopTarget, OpCode.subI, countReg, new Num(1), countReg);
 | 
			
		||||
				emit("pop remaining", OpCode.cbr, countReg, iterTarget, stopTarget);
 | 
			
		||||
				emit("pop remaining", iterTarget, OpCode.cpop, getReg(ctx));
 | 
			
		||||
				emit("pop remaining", OpCode.jumpI, loopTarget);
 | 
			
		||||
				emit("pop remaining", stopTarget, OpCode.nop);
 | 
			
		||||
				// Reload value
 | 
			
		||||
				emit("var " + expr.getText(), OpCode.cloadAI, getVar(expr), new Num(an.variables.get(expr).getOffset()),
 | 
			
		||||
						getReg(ctx));
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitIf(IfContext ctx) {
 | 
			
		||||
		Label toTrue = new Label("if_t" + ctx.hashCode());
 | 
			
		||||
		Label toFalse = new Label("if_f" + ctx.hashCode());
 | 
			
		||||
		Label toEnd = new Label("if_e" + ctx.hashCode());
 | 
			
		||||
 | 
			
		||||
		visit(ctx.cond);
 | 
			
		||||
		if (ctx.onFalse == null) {
 | 
			
		||||
			emit("", OpCode.cbr, getReg(ctx.cond), toTrue, toEnd);
 | 
			
		||||
			freeReg(ctx.cond);
 | 
			
		||||
 | 
			
		||||
			emit("", toTrue, OpCode.nop);
 | 
			
		||||
			visit(ctx.onTrue);
 | 
			
		||||
			freeReg(ctx.onTrue);
 | 
			
		||||
		} else {
 | 
			
		||||
			emit("", OpCode.cbr, getReg(ctx.cond), toTrue, toFalse);
 | 
			
		||||
			freeReg(ctx.cond);
 | 
			
		||||
 | 
			
		||||
			emit("", toTrue, OpCode.nop);
 | 
			
		||||
			visit(ctx.onTrue);
 | 
			
		||||
			freeReg(ctx.onTrue);
 | 
			
		||||
			if (an.types.get(ctx) != SimpleType.VOID)
 | 
			
		||||
				emit("result", OpCode.i2i, getReg(ctx.onTrue), makeReg(ctx));
 | 
			
		||||
			emit("", OpCode.jumpI, toEnd);
 | 
			
		||||
			freeReg(ctx);
 | 
			
		||||
 | 
			
		||||
			emit("", toFalse, OpCode.nop);
 | 
			
		||||
			visit(ctx.onFalse);
 | 
			
		||||
			freeReg(ctx.onFalse);
 | 
			
		||||
			if (an.types.get(ctx) != SimpleType.VOID)
 | 
			
		||||
				emit("result", OpCode.i2i, getReg(ctx.onFalse), makeReg(ctx));
 | 
			
		||||
 | 
			
		||||
		}
 | 
			
		||||
		emit("end target", toEnd, OpCode.nop);
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitWhile(WhileContext ctx) {
 | 
			
		||||
		Label toLoop = new Label("while_t" + ctx.hashCode());
 | 
			
		||||
		Label toCond = new Label("while_f" + ctx.hashCode());
 | 
			
		||||
		Label toEnd = new Label("while_e" + ctx.hashCode());
 | 
			
		||||
 | 
			
		||||
		emit("to condition", OpCode.jumpI, toCond);
 | 
			
		||||
		emit("loop target", toLoop, OpCode.nop);
 | 
			
		||||
		visit(ctx.onTrue);
 | 
			
		||||
		freeReg(ctx.onTrue);
 | 
			
		||||
		emit("condition target", toCond, OpCode.nop);
 | 
			
		||||
		visit(ctx.cond);
 | 
			
		||||
		freeReg(ctx.cond);
 | 
			
		||||
		emit("", OpCode.cbr, getReg(ctx.cond), toLoop, toEnd);
 | 
			
		||||
		emit("end target", toEnd, OpCode.nop);
 | 
			
		||||
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Void visitWrite(WriteContext ctx) {
 | 
			
		||||
		if (ctx.expr().size() > 1) {
 | 
			
		||||
			for (ExprContext expr : ctx.expr()) {
 | 
			
		||||
				visit(expr);
 | 
			
		||||
				if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
 | 
			
		||||
					emit("", OpCode.out, new Str(""), getReg(expr));
 | 
			
		||||
				} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
 | 
			
		||||
					makeReg(ctx);
 | 
			
		||||
					emit("push character", OpCode.cpush, getReg(expr));
 | 
			
		||||
					emit("load 1", OpCode.loadI, new Num(1), getReg(ctx));
 | 
			
		||||
					emit("push 1", OpCode.push, getReg(ctx));
 | 
			
		||||
					emit("print character", OpCode.cout, new Str(""));
 | 
			
		||||
					freeReg(ctx);
 | 
			
		||||
				} else {
 | 
			
		||||
					emit("??????????????", OpCode.out, new Str("Unknown type: "), getReg(expr));
 | 
			
		||||
				}
 | 
			
		||||
				freeReg(expr);
 | 
			
		||||
			}
 | 
			
		||||
			an.registers.removeFrom(ctx);
 | 
			
		||||
		} else {
 | 
			
		||||
			ExprContext expr = ctx.expr(0);
 | 
			
		||||
			visit(expr);
 | 
			
		||||
			if (SimpleType.BOOL.equals(an.types.get(expr)) || SimpleType.INT.equals(an.types.get(expr))) {
 | 
			
		||||
				emit("", OpCode.out, new Str(""), getReg(expr));
 | 
			
		||||
			} else if (SimpleType.CHAR.equals(an.types.get(expr))) {
 | 
			
		||||
				makeReg(ctx);
 | 
			
		||||
				emit("push character", OpCode.cpush, getReg(expr));
 | 
			
		||||
				emit("load 1", OpCode.loadI, new Num(1), getReg(ctx));
 | 
			
		||||
				emit("push 1", OpCode.push, getReg(ctx));
 | 
			
		||||
				emit("print character", OpCode.cout, new Str(""));
 | 
			
		||||
				freeReg(ctx);
 | 
			
		||||
			}
 | 
			
		||||
 | 
			
		||||
			copyReg(expr, ctx);
 | 
			
		||||
		}
 | 
			
		||||
		return null;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Returns an error message for a given parse tree node.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param ctx
 | 
			
		||||
	 *            the parse tree node at which the error occurred
 | 
			
		||||
	 * @param message
 | 
			
		||||
	 *            the error message
 | 
			
		||||
	 * @param args
 | 
			
		||||
	 *            arguments for the message, see {@link String#format}
 | 
			
		||||
	 */
 | 
			
		||||
	private String getError(ParserRuleContext node, String message, Object... args) {
 | 
			
		||||
		int line = node.getStart().getLine();
 | 
			
		||||
		int column = node.getStart().getCharPositionInLine();
 | 
			
		||||
		return String.format("Line %d:%d - %s", line, column, String.format(message, args));
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -11,8 +11,8 @@ public class DebugCachingSymbolTable<T extends Type> extends CachingSymbolTable<
 | 
			
		|||
 | 
			
		||||
	@Override
 | 
			
		||||
	public void openFunctionScope() {
 | 
			
		||||
		System.out.println(this.getClass().getName() + ": entering scope depth " + functionDepth);
 | 
			
		||||
		super.openFunctionScope();
 | 
			
		||||
		System.out.println(this.getClass().getName() + ": entering scope depth " + functionDepth);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
| 
						 | 
				
			
			@ -28,7 +28,7 @@ public class DebugCachingSymbolTable<T extends Type> extends CachingSymbolTable<
 | 
			
		|||
 | 
			
		||||
	@Override
 | 
			
		||||
	public Variable<T> put(String id, T type) throws Exception, EmptyStackException {
 | 
			
		||||
		System.out.println(this.getClass().getName() + ": declaring '" + id + "' at scope " + functionDepth);
 | 
			
		||||
		System.out.println(this.getClass().getName() + ": declaring '" + id + "' ("+type.toString()+") at scope " + functionDepth);
 | 
			
		||||
		return super.put(id, type);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -10,13 +10,11 @@ public class FunctionType implements Type {
 | 
			
		|||
	private List<Integer> offsets;
 | 
			
		||||
	private Type result;
 | 
			
		||||
	private int localDataSize;
 | 
			
		||||
	private int depth;
 | 
			
		||||
 | 
			
		||||
	public FunctionType(Type returnType, List<Type> parameterTypes, int depth) {
 | 
			
		||||
	public FunctionType(Type returnType, List<Type> parameterTypes) {
 | 
			
		||||
		result = returnType;
 | 
			
		||||
		parameters = new ArrayList<>(parameterTypes);
 | 
			
		||||
		offsets = new ArrayList<>();
 | 
			
		||||
		this.depth = depth;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
| 
						 | 
				
			
			@ -83,12 +81,4 @@ public class FunctionType implements Type {
 | 
			
		|||
	public List<Integer> getOffsets() {
 | 
			
		||||
		return offsets;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	public int getDepth() {
 | 
			
		||||
		return depth;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	public void setDepth(int newDepth) {
 | 
			
		||||
		depth = newDepth;
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -1,8 +1,9 @@
 | 
			
		|||
package pp.s1184725.boppi;
 | 
			
		||||
 | 
			
		||||
import static pp.s1184725.boppi.BasicLexer.*;
 | 
			
		||||
import static pp.s1184725.boppi.antlr.BoppiLexer.*;
 | 
			
		||||
 | 
			
		||||
import pp.iloc.eval.Machine;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiLexer;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * This class provides 4 basic data types:
 | 
			
		||||
| 
						 | 
				
			
			@ -28,7 +29,7 @@ public enum SimpleType implements Type {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Maps a token lexed by {@link BasicLexer} to a data type.
 | 
			
		||||
	 * Maps a token lexed by {@link BoppiLexer} to a data type.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param token
 | 
			
		||||
	 *            the token to parse
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -12,6 +12,8 @@ import org.apache.commons.lang3.tuple.Pair;
 | 
			
		|||
 | 
			
		||||
import pp.iloc.Simulator;
 | 
			
		||||
import pp.iloc.model.Program;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiLexer;
 | 
			
		||||
import pp.s1184725.boppi.antlr.BoppiParser;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * This class provides methods for all steps in the Boppi tool chain.
 | 
			
		||||
| 
						 | 
				
			
			@ -56,8 +58,8 @@ public class ToolChain {
 | 
			
		|||
	 *            the logger to attach
 | 
			
		||||
	 * @return the initialised lexer
 | 
			
		||||
	 */
 | 
			
		||||
	public static BasicLexer getLexer(CharStream stream, Logger logger) {
 | 
			
		||||
		BasicLexer lexer = new BasicLexer(stream);
 | 
			
		||||
	public static BoppiLexer getLexer(CharStream stream, Logger logger) {
 | 
			
		||||
		BoppiLexer lexer = new BoppiLexer(stream);
 | 
			
		||||
		lexer.removeErrorListeners();
 | 
			
		||||
		lexer.addErrorListener(new BaseErrorListener() {
 | 
			
		||||
			@Override
 | 
			
		||||
| 
						 | 
				
			
			@ -79,8 +81,8 @@ public class ToolChain {
 | 
			
		|||
	 *            the logger to attach
 | 
			
		||||
	 * @return the initialised parser
 | 
			
		||||
	 */
 | 
			
		||||
	public static BasicParser getParser(BasicLexer lexer, Logger logger) {
 | 
			
		||||
		BasicParser parser = new BasicParser(new CommonTokenStream(lexer));
 | 
			
		||||
	public static BoppiParser getParser(BoppiLexer lexer, Logger logger) {
 | 
			
		||||
		BoppiParser parser = new BoppiParser(new CommonTokenStream(lexer));
 | 
			
		||||
		parser.removeErrorListeners();
 | 
			
		||||
		parser.addErrorListener(new BaseErrorListener() {
 | 
			
		||||
			@Override
 | 
			
		||||
| 
						 | 
				
			
			@ -93,7 +95,7 @@ public class ToolChain {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
	 * Checks a (sub)program with the {@link BoppiBasicChecker} and returns the
 | 
			
		||||
	 * Checks a (sub)program with the {@link BoppiChecker} and returns the
 | 
			
		||||
	 * annotations.
 | 
			
		||||
	 * 
 | 
			
		||||
	 * @param program
 | 
			
		||||
| 
						 | 
				
			
			@ -103,9 +105,7 @@ public class ToolChain {
 | 
			
		|||
	 * @return the annotations made by the checker
 | 
			
		||||
	 */
 | 
			
		||||
	public static Annotations getAnnotations(ParseTree program, Logger logger) {
 | 
			
		||||
		Annotations annotations = new Annotations();
 | 
			
		||||
		new BoppiBasicChecker(logger, annotations).visit(program);
 | 
			
		||||
		return annotations;
 | 
			
		||||
		return BoppiChecker.checkProgram(program, logger);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
| 
						 | 
				
			
			@ -115,12 +115,12 @@ public class ToolChain {
 | 
			
		|||
	 *            the parse tree to convert to ILOC
 | 
			
		||||
	 * @param annotations
 | 
			
		||||
	 *            the annotations object provided by the checking phase
 | 
			
		||||
	 * @param logger
 | 
			
		||||
	 *            the logger to write checker messages to
 | 
			
		||||
	 * @return an ILOC program
 | 
			
		||||
	 */
 | 
			
		||||
	public static Program getILOC(ParseTree program, Annotations annotations) {
 | 
			
		||||
		BoppiBasicGenerator generator = new BoppiBasicGenerator(annotations);
 | 
			
		||||
		generator.visit(program);
 | 
			
		||||
		return generator.prog;
 | 
			
		||||
	public static Program getILOC(ParseTree program, Logger logger, Annotations annotations) {
 | 
			
		||||
		return BoppiGenerator.generateProgram(program, annotations, logger);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
| 
						 | 
				
			
			@ -170,7 +170,7 @@ public class ToolChain {
 | 
			
		|||
		List<LogRecord> logs = makeListLog(logger);
 | 
			
		||||
 | 
			
		||||
		ParseTree ast = getParser(getLexer(stream, logger), logger).program();
 | 
			
		||||
		return Pair.of(getILOC(ast, getAnnotations(ast, logger)), logs);
 | 
			
		||||
		return Pair.of(getILOC(ast, logger, getAnnotations(ast, logger)), logs);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
| 
						 | 
				
			
			@ -185,7 +185,7 @@ public class ToolChain {
 | 
			
		|||
	 */
 | 
			
		||||
	public static Program compile(CharStream stream, Logger logger) {
 | 
			
		||||
		ParseTree ast = getParser(getLexer(stream, logger), logger).program();
 | 
			
		||||
		return getILOC(ast, getAnnotations(ast, logger));
 | 
			
		||||
		return getILOC(ast, logger, getAnnotations(ast, logger));
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/**
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -17,6 +17,8 @@ public class Variable<T> {
 | 
			
		|||
	 * 
 | 
			
		||||
	 * @param type
 | 
			
		||||
	 *            the type of the variable
 | 
			
		||||
	 * @param depth
 | 
			
		||||
	 *            the lexical depth of this variable
 | 
			
		||||
	 * @param offset
 | 
			
		||||
	 *            the memory offset for this variable
 | 
			
		||||
	 */
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -1,4 +1,4 @@
 | 
			
		|||
grammar Basic;
 | 
			
		||||
grammar Boppi;
 | 
			
		||||
 | 
			
		||||
program: expr EOF;
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -11,7 +11,7 @@ singleExpr
 | 
			
		|||
    | BRAOPEN expr BRACLOSE #block
 | 
			
		||||
    | IN PAROPEN variable (LISTDELIM variable)* PARCLOSE #read
 | 
			
		||||
    | OUT PAROPEN expr (LISTDELIM expr)* PARCLOSE #write
 | 
			
		||||
    | variable PAROPEN expr (LISTDELIM expr)* PARCLOSE #call
 | 
			
		||||
    | variable PAROPEN (expr (LISTDELIM expr)*)? PARCLOSE #call
 | 
			
		||||
    | IFOPEN cond=expr IFTRUE onTrue=expr (IFFALSE onFalse=expr)? IFCLOSE #if
 | 
			
		||||
    | WHILEOPEN cond=expr WHILETRUE onTrue=expr WHILECLOSE #while
 | 
			
		||||
    | op=(PLUS|MINUS|NOT) singleExpr #prefix1
 | 
			
		||||
| 
						 | 
				
			
			@ -21,7 +21,7 @@ singleExpr
 | 
			
		|||
    | lhs=singleExpr AND rhs=singleExpr #infix4
 | 
			
		||||
    | lhs=singleExpr OR rhs=singleExpr #infix5
 | 
			
		||||
    | DECLARE type IDENTIFIER #declare
 | 
			
		||||
    | FUNCTION result=type name=IDENTIFIER PAROPEN type IDENTIFIER (LISTDELIM type IDENTIFIER)* PARCLOSE body=singleExpr #funcDeclare
 | 
			
		||||
    | FUNCTION result=type name=IDENTIFIER PAROPEN (type IDENTIFIER (LISTDELIM type IDENTIFIER)*)? PARCLOSE body=singleExpr #funcDeclare
 | 
			
		||||
    | <assoc=right> variable ASSIGN singleExpr #assign
 | 
			
		||||
    | variable #var
 | 
			
		||||
    | LITERAL10 #number
 | 
			
		||||
| 
						 | 
				
			
			@ -1,182 +1,182 @@
 | 
			
		|||
// Generated from Basic.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi;
 | 
			
		||||
// Generated from Boppi.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi.antlr;
 | 
			
		||||
import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * This class provides an empty implementation of {@link BasicVisitor},
 | 
			
		||||
 * This class provides an empty implementation of {@link BoppiVisitor},
 | 
			
		||||
 * which can be extended to create a visitor which only needs to handle a subset
 | 
			
		||||
 * of the available methods.
 | 
			
		||||
 *
 | 
			
		||||
 * @param <T> The return type of the visit operation. Use {@link Void} for
 | 
			
		||||
 * operations with no return type.
 | 
			
		||||
 */
 | 
			
		||||
public class BasicBaseVisitor<T> extends AbstractParseTreeVisitor<T> implements BasicVisitor<T> {
 | 
			
		||||
public class BoppiBaseVisitor<T> extends AbstractParseTreeVisitor<T> implements BoppiVisitor<T> {
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitProgram(BasicParser.ProgramContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitProgram(BoppiParser.ProgramContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitExpr(BasicParser.ExprContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitExpr(BoppiParser.ExprContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitParens(BasicParser.ParensContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitParens(BoppiParser.ParensContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitRead(BasicParser.ReadContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitRead(BoppiParser.ReadContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitDeclare(BasicParser.DeclareContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitDeclare(BoppiParser.DeclareContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitBool(BasicParser.BoolContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitBool(BoppiParser.BoolContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitVar(BasicParser.VarContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitVar(BoppiParser.VarContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitInfix2(BasicParser.Infix2Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitInfix2(BoppiParser.Infix2Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitInfix3(BasicParser.Infix3Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitInfix3(BoppiParser.Infix3Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitInfix1(BasicParser.Infix1Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitInfix1(BoppiParser.Infix1Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitWhile(BasicParser.WhileContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitWhile(BoppiParser.WhileContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitInfix4(BasicParser.Infix4Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitInfix4(BoppiParser.Infix4Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitInfix5(BasicParser.Infix5Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitInfix5(BoppiParser.Infix5Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitCall(BasicParser.CallContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitCall(BoppiParser.CallContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitNumber(BasicParser.NumberContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitNumber(BoppiParser.NumberContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitFuncDeclare(BasicParser.FuncDeclareContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitFuncDeclare(BoppiParser.FuncDeclareContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitChar(BasicParser.CharContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitChar(BoppiParser.CharContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitBlock(BasicParser.BlockContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitBlock(BoppiParser.BlockContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitWrite(BasicParser.WriteContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitWrite(BoppiParser.WriteContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitIf(BasicParser.IfContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitIf(BoppiParser.IfContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitPrefix1(BasicParser.Prefix1Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitPrefix1(BoppiParser.Prefix1Context ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitAssign(BasicParser.AssignContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitAssign(BoppiParser.AssignContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitType(BasicParser.TypeContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitType(BoppiParser.TypeContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	/**
 | 
			
		||||
	 * {@inheritDoc}
 | 
			
		||||
	 *
 | 
			
		||||
	 * <p>The default implementation returns the result of calling
 | 
			
		||||
	 * {@link #visitChildren} on {@code ctx}.</p>
 | 
			
		||||
	 */
 | 
			
		||||
	@Override public T visitVariable(BasicParser.VariableContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
	@Override public T visitVariable(BoppiParser.VariableContext ctx) { return visitChildren(ctx); }
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -1,5 +1,5 @@
 | 
			
		|||
// Generated from Basic.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi;
 | 
			
		||||
// Generated from Boppi.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi.antlr;
 | 
			
		||||
import org.antlr.v4.runtime.Lexer;
 | 
			
		||||
import org.antlr.v4.runtime.CharStream;
 | 
			
		||||
import org.antlr.v4.runtime.Token;
 | 
			
		||||
| 
						 | 
				
			
			@ -10,7 +10,7 @@ import org.antlr.v4.runtime.dfa.DFA;
 | 
			
		|||
import org.antlr.v4.runtime.misc.*;
 | 
			
		||||
 | 
			
		||||
@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
 | 
			
		||||
public class BasicLexer extends Lexer {
 | 
			
		||||
public class BoppiLexer extends Lexer {
 | 
			
		||||
	static { RuntimeMetaData.checkVersion("4.7", RuntimeMetaData.VERSION); }
 | 
			
		||||
 | 
			
		||||
	protected static final DFA[] _decisionToDFA;
 | 
			
		||||
| 
						 | 
				
			
			@ -90,13 +90,13 @@ public class BasicLexer extends Lexer {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
	public BasicLexer(CharStream input) {
 | 
			
		||||
	public BoppiLexer(CharStream input) {
 | 
			
		||||
		super(input);
 | 
			
		||||
		_interp = new LexerATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public String getGrammarFileName() { return "Basic.g4"; }
 | 
			
		||||
	public String getGrammarFileName() { return "Boppi.g4"; }
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public String[] getRuleNames() { return ruleNames; }
 | 
			
		||||
| 
						 | 
				
			
			@ -1,5 +1,5 @@
 | 
			
		|||
// Generated from Basic.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi;
 | 
			
		||||
// Generated from Boppi.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi.antlr;
 | 
			
		||||
import org.antlr.v4.runtime.atn.*;
 | 
			
		||||
import org.antlr.v4.runtime.dfa.DFA;
 | 
			
		||||
import org.antlr.v4.runtime.*;
 | 
			
		||||
| 
						 | 
				
			
			@ -10,7 +10,7 @@ import java.util.Iterator;
 | 
			
		|||
import java.util.ArrayList;
 | 
			
		||||
 | 
			
		||||
@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
 | 
			
		||||
public class BasicParser extends Parser {
 | 
			
		||||
public class BoppiParser extends Parser {
 | 
			
		||||
	static { RuntimeMetaData.checkVersion("4.7", RuntimeMetaData.VERSION); }
 | 
			
		||||
 | 
			
		||||
	protected static final DFA[] _decisionToDFA;
 | 
			
		||||
| 
						 | 
				
			
			@ -79,7 +79,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public String getGrammarFileName() { return "Basic.g4"; }
 | 
			
		||||
	public String getGrammarFileName() { return "Boppi.g4"; }
 | 
			
		||||
 | 
			
		||||
	@Override
 | 
			
		||||
	public String[] getRuleNames() { return ruleNames; }
 | 
			
		||||
| 
						 | 
				
			
			@ -90,7 +90,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
	@Override
 | 
			
		||||
	public ATN getATN() { return _ATN; }
 | 
			
		||||
 | 
			
		||||
	public BasicParser(TokenStream input) {
 | 
			
		||||
	public BoppiParser(TokenStream input) {
 | 
			
		||||
		super(input);
 | 
			
		||||
		_interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -98,14 +98,14 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public ExprContext expr() {
 | 
			
		||||
			return getRuleContext(ExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode EOF() { return getToken(BasicParser.EOF, 0); }
 | 
			
		||||
		public TerminalNode EOF() { return getToken(BoppiParser.EOF, 0); }
 | 
			
		||||
		public ProgramContext(ParserRuleContext parent, int invokingState) {
 | 
			
		||||
			super(parent, invokingState);
 | 
			
		||||
		}
 | 
			
		||||
		@Override public int getRuleIndex() { return RULE_program; }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitProgram(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitProgram(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -140,9 +140,9 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public SingleExprContext singleExpr(int i) {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public List<TerminalNode> COMPOUND() { return getTokens(BasicParser.COMPOUND); }
 | 
			
		||||
		public List<TerminalNode> COMPOUND() { return getTokens(BoppiParser.COMPOUND); }
 | 
			
		||||
		public TerminalNode COMPOUND(int i) {
 | 
			
		||||
			return getToken(BasicParser.COMPOUND, i);
 | 
			
		||||
			return getToken(BoppiParser.COMPOUND, i);
 | 
			
		||||
		}
 | 
			
		||||
		public ExprContext(ParserRuleContext parent, int invokingState) {
 | 
			
		||||
			super(parent, invokingState);
 | 
			
		||||
| 
						 | 
				
			
			@ -150,7 +150,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		@Override public int getRuleIndex() { return RULE_expr; }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitExpr(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitExpr(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -213,59 +213,59 @@ public class BasicParser extends Parser {
 | 
			
		|||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class ParensContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BasicParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BoppiParser.PAROPEN, 0); }
 | 
			
		||||
		public ExprContext expr() {
 | 
			
		||||
			return getRuleContext(ExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BasicParser.PARCLOSE, 0); }
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BoppiParser.PARCLOSE, 0); }
 | 
			
		||||
		public ParensContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitParens(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitParens(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class ReadContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode IN() { return getToken(BasicParser.IN, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BasicParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode IN() { return getToken(BoppiParser.IN, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BoppiParser.PAROPEN, 0); }
 | 
			
		||||
		public List<VariableContext> variable() {
 | 
			
		||||
			return getRuleContexts(VariableContext.class);
 | 
			
		||||
		}
 | 
			
		||||
		public VariableContext variable(int i) {
 | 
			
		||||
			return getRuleContext(VariableContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BasicParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BasicParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BoppiParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BoppiParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode LISTDELIM(int i) {
 | 
			
		||||
			return getToken(BasicParser.LISTDELIM, i);
 | 
			
		||||
			return getToken(BoppiParser.LISTDELIM, i);
 | 
			
		||||
		}
 | 
			
		||||
		public ReadContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitRead(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitRead(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class DeclareContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode DECLARE() { return getToken(BasicParser.DECLARE, 0); }
 | 
			
		||||
		public TerminalNode DECLARE() { return getToken(BoppiParser.DECLARE, 0); }
 | 
			
		||||
		public TypeContext type() {
 | 
			
		||||
			return getRuleContext(TypeContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode IDENTIFIER() { return getToken(BasicParser.IDENTIFIER, 0); }
 | 
			
		||||
		public TerminalNode IDENTIFIER() { return getToken(BoppiParser.IDENTIFIER, 0); }
 | 
			
		||||
		public DeclareContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitDeclare(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitDeclare(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class BoolContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode TRUE() { return getToken(BasicParser.TRUE, 0); }
 | 
			
		||||
		public TerminalNode FALSE() { return getToken(BasicParser.FALSE, 0); }
 | 
			
		||||
		public TerminalNode TRUE() { return getToken(BoppiParser.TRUE, 0); }
 | 
			
		||||
		public TerminalNode FALSE() { return getToken(BoppiParser.FALSE, 0); }
 | 
			
		||||
		public BoolContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitBool(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitBool(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -276,7 +276,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public VarContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitVar(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitVar(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -290,12 +290,12 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public SingleExprContext singleExpr(int i) {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PLUS() { return getToken(BasicParser.PLUS, 0); }
 | 
			
		||||
		public TerminalNode MINUS() { return getToken(BasicParser.MINUS, 0); }
 | 
			
		||||
		public TerminalNode PLUS() { return getToken(BoppiParser.PLUS, 0); }
 | 
			
		||||
		public TerminalNode MINUS() { return getToken(BoppiParser.MINUS, 0); }
 | 
			
		||||
		public Infix2Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitInfix2(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitInfix2(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -309,16 +309,16 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public SingleExprContext singleExpr(int i) {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode LT() { return getToken(BasicParser.LT, 0); }
 | 
			
		||||
		public TerminalNode LEQ() { return getToken(BasicParser.LEQ, 0); }
 | 
			
		||||
		public TerminalNode GTE() { return getToken(BasicParser.GTE, 0); }
 | 
			
		||||
		public TerminalNode GT() { return getToken(BasicParser.GT, 0); }
 | 
			
		||||
		public TerminalNode EQ() { return getToken(BasicParser.EQ, 0); }
 | 
			
		||||
		public TerminalNode NEQ() { return getToken(BasicParser.NEQ, 0); }
 | 
			
		||||
		public TerminalNode LT() { return getToken(BoppiParser.LT, 0); }
 | 
			
		||||
		public TerminalNode LEQ() { return getToken(BoppiParser.LEQ, 0); }
 | 
			
		||||
		public TerminalNode GTE() { return getToken(BoppiParser.GTE, 0); }
 | 
			
		||||
		public TerminalNode GT() { return getToken(BoppiParser.GT, 0); }
 | 
			
		||||
		public TerminalNode EQ() { return getToken(BoppiParser.EQ, 0); }
 | 
			
		||||
		public TerminalNode NEQ() { return getToken(BoppiParser.NEQ, 0); }
 | 
			
		||||
		public Infix3Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitInfix3(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitInfix3(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -332,22 +332,22 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public SingleExprContext singleExpr(int i) {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode MULTIPLY() { return getToken(BasicParser.MULTIPLY, 0); }
 | 
			
		||||
		public TerminalNode DIVIDE() { return getToken(BasicParser.DIVIDE, 0); }
 | 
			
		||||
		public TerminalNode MODULO() { return getToken(BasicParser.MODULO, 0); }
 | 
			
		||||
		public TerminalNode MULTIPLY() { return getToken(BoppiParser.MULTIPLY, 0); }
 | 
			
		||||
		public TerminalNode DIVIDE() { return getToken(BoppiParser.DIVIDE, 0); }
 | 
			
		||||
		public TerminalNode MODULO() { return getToken(BoppiParser.MODULO, 0); }
 | 
			
		||||
		public Infix1Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitInfix1(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitInfix1(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class WhileContext extends SingleExprContext {
 | 
			
		||||
		public ExprContext cond;
 | 
			
		||||
		public ExprContext onTrue;
 | 
			
		||||
		public TerminalNode WHILEOPEN() { return getToken(BasicParser.WHILEOPEN, 0); }
 | 
			
		||||
		public TerminalNode WHILETRUE() { return getToken(BasicParser.WHILETRUE, 0); }
 | 
			
		||||
		public TerminalNode WHILECLOSE() { return getToken(BasicParser.WHILECLOSE, 0); }
 | 
			
		||||
		public TerminalNode WHILEOPEN() { return getToken(BoppiParser.WHILEOPEN, 0); }
 | 
			
		||||
		public TerminalNode WHILETRUE() { return getToken(BoppiParser.WHILETRUE, 0); }
 | 
			
		||||
		public TerminalNode WHILECLOSE() { return getToken(BoppiParser.WHILECLOSE, 0); }
 | 
			
		||||
		public List<ExprContext> expr() {
 | 
			
		||||
			return getRuleContexts(ExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -357,14 +357,14 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public WhileContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitWhile(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitWhile(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class Infix4Context extends SingleExprContext {
 | 
			
		||||
		public SingleExprContext lhs;
 | 
			
		||||
		public SingleExprContext rhs;
 | 
			
		||||
		public TerminalNode AND() { return getToken(BasicParser.AND, 0); }
 | 
			
		||||
		public TerminalNode AND() { return getToken(BoppiParser.AND, 0); }
 | 
			
		||||
		public List<SingleExprContext> singleExpr() {
 | 
			
		||||
			return getRuleContexts(SingleExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -374,14 +374,14 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public Infix4Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitInfix4(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitInfix4(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class Infix5Context extends SingleExprContext {
 | 
			
		||||
		public SingleExprContext lhs;
 | 
			
		||||
		public SingleExprContext rhs;
 | 
			
		||||
		public TerminalNode OR() { return getToken(BasicParser.OR, 0); }
 | 
			
		||||
		public TerminalNode OR() { return getToken(BoppiParser.OR, 0); }
 | 
			
		||||
		public List<SingleExprContext> singleExpr() {
 | 
			
		||||
			return getRuleContexts(SingleExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -391,7 +391,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public Infix5Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitInfix5(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitInfix5(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -399,31 +399,31 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public VariableContext variable() {
 | 
			
		||||
			return getRuleContext(VariableContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BasicParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BoppiParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BoppiParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<ExprContext> expr() {
 | 
			
		||||
			return getRuleContexts(ExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
		public ExprContext expr(int i) {
 | 
			
		||||
			return getRuleContext(ExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BasicParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BasicParser.LISTDELIM); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BoppiParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode LISTDELIM(int i) {
 | 
			
		||||
			return getToken(BasicParser.LISTDELIM, i);
 | 
			
		||||
			return getToken(BoppiParser.LISTDELIM, i);
 | 
			
		||||
		}
 | 
			
		||||
		public CallContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitCall(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitCall(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class NumberContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode LITERAL10() { return getToken(BasicParser.LITERAL10, 0); }
 | 
			
		||||
		public TerminalNode LITERAL10() { return getToken(BoppiParser.LITERAL10, 0); }
 | 
			
		||||
		public NumberContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitNumber(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitNumber(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -431,73 +431,73 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public TypeContext result;
 | 
			
		||||
		public Token name;
 | 
			
		||||
		public SingleExprContext body;
 | 
			
		||||
		public TerminalNode FUNCTION() { return getToken(BasicParser.FUNCTION, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BasicParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode FUNCTION() { return getToken(BoppiParser.FUNCTION, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BoppiParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BoppiParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TypeContext> type() {
 | 
			
		||||
			return getRuleContexts(TypeContext.class);
 | 
			
		||||
		}
 | 
			
		||||
		public TypeContext type(int i) {
 | 
			
		||||
			return getRuleContext(TypeContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public List<TerminalNode> IDENTIFIER() { return getTokens(BasicParser.IDENTIFIER); }
 | 
			
		||||
		public List<TerminalNode> IDENTIFIER() { return getTokens(BoppiParser.IDENTIFIER); }
 | 
			
		||||
		public TerminalNode IDENTIFIER(int i) {
 | 
			
		||||
			return getToken(BasicParser.IDENTIFIER, i);
 | 
			
		||||
			return getToken(BoppiParser.IDENTIFIER, i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BasicParser.PARCLOSE, 0); }
 | 
			
		||||
		public SingleExprContext singleExpr() {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BasicParser.LISTDELIM); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BoppiParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode LISTDELIM(int i) {
 | 
			
		||||
			return getToken(BasicParser.LISTDELIM, i);
 | 
			
		||||
			return getToken(BoppiParser.LISTDELIM, i);
 | 
			
		||||
		}
 | 
			
		||||
		public FuncDeclareContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitFuncDeclare(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitFuncDeclare(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class CharContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode CHAR() { return getToken(BasicParser.CHAR, 0); }
 | 
			
		||||
		public TerminalNode CHAR() { return getToken(BoppiParser.CHAR, 0); }
 | 
			
		||||
		public CharContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitChar(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitChar(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class BlockContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode BRAOPEN() { return getToken(BasicParser.BRAOPEN, 0); }
 | 
			
		||||
		public TerminalNode BRAOPEN() { return getToken(BoppiParser.BRAOPEN, 0); }
 | 
			
		||||
		public ExprContext expr() {
 | 
			
		||||
			return getRuleContext(ExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode BRACLOSE() { return getToken(BasicParser.BRACLOSE, 0); }
 | 
			
		||||
		public TerminalNode BRACLOSE() { return getToken(BoppiParser.BRACLOSE, 0); }
 | 
			
		||||
		public BlockContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitBlock(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitBlock(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	public static class WriteContext extends SingleExprContext {
 | 
			
		||||
		public TerminalNode OUT() { return getToken(BasicParser.OUT, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BasicParser.PAROPEN, 0); }
 | 
			
		||||
		public TerminalNode OUT() { return getToken(BoppiParser.OUT, 0); }
 | 
			
		||||
		public TerminalNode PAROPEN() { return getToken(BoppiParser.PAROPEN, 0); }
 | 
			
		||||
		public List<ExprContext> expr() {
 | 
			
		||||
			return getRuleContexts(ExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
		public ExprContext expr(int i) {
 | 
			
		||||
			return getRuleContext(ExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BasicParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BasicParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode PARCLOSE() { return getToken(BoppiParser.PARCLOSE, 0); }
 | 
			
		||||
		public List<TerminalNode> LISTDELIM() { return getTokens(BoppiParser.LISTDELIM); }
 | 
			
		||||
		public TerminalNode LISTDELIM(int i) {
 | 
			
		||||
			return getToken(BasicParser.LISTDELIM, i);
 | 
			
		||||
			return getToken(BoppiParser.LISTDELIM, i);
 | 
			
		||||
		}
 | 
			
		||||
		public WriteContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitWrite(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitWrite(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -505,20 +505,20 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public ExprContext cond;
 | 
			
		||||
		public ExprContext onTrue;
 | 
			
		||||
		public ExprContext onFalse;
 | 
			
		||||
		public TerminalNode IFOPEN() { return getToken(BasicParser.IFOPEN, 0); }
 | 
			
		||||
		public TerminalNode IFTRUE() { return getToken(BasicParser.IFTRUE, 0); }
 | 
			
		||||
		public TerminalNode IFCLOSE() { return getToken(BasicParser.IFCLOSE, 0); }
 | 
			
		||||
		public TerminalNode IFOPEN() { return getToken(BoppiParser.IFOPEN, 0); }
 | 
			
		||||
		public TerminalNode IFTRUE() { return getToken(BoppiParser.IFTRUE, 0); }
 | 
			
		||||
		public TerminalNode IFCLOSE() { return getToken(BoppiParser.IFCLOSE, 0); }
 | 
			
		||||
		public List<ExprContext> expr() {
 | 
			
		||||
			return getRuleContexts(ExprContext.class);
 | 
			
		||||
		}
 | 
			
		||||
		public ExprContext expr(int i) {
 | 
			
		||||
			return getRuleContext(ExprContext.class,i);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode IFFALSE() { return getToken(BasicParser.IFFALSE, 0); }
 | 
			
		||||
		public TerminalNode IFFALSE() { return getToken(BoppiParser.IFFALSE, 0); }
 | 
			
		||||
		public IfContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitIf(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitIf(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -527,13 +527,13 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public SingleExprContext singleExpr() {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode PLUS() { return getToken(BasicParser.PLUS, 0); }
 | 
			
		||||
		public TerminalNode MINUS() { return getToken(BasicParser.MINUS, 0); }
 | 
			
		||||
		public TerminalNode NOT() { return getToken(BasicParser.NOT, 0); }
 | 
			
		||||
		public TerminalNode PLUS() { return getToken(BoppiParser.PLUS, 0); }
 | 
			
		||||
		public TerminalNode MINUS() { return getToken(BoppiParser.MINUS, 0); }
 | 
			
		||||
		public TerminalNode NOT() { return getToken(BoppiParser.NOT, 0); }
 | 
			
		||||
		public Prefix1Context(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitPrefix1(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitPrefix1(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -541,14 +541,14 @@ public class BasicParser extends Parser {
 | 
			
		|||
		public VariableContext variable() {
 | 
			
		||||
			return getRuleContext(VariableContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public TerminalNode ASSIGN() { return getToken(BasicParser.ASSIGN, 0); }
 | 
			
		||||
		public TerminalNode ASSIGN() { return getToken(BoppiParser.ASSIGN, 0); }
 | 
			
		||||
		public SingleExprContext singleExpr() {
 | 
			
		||||
			return getRuleContext(SingleExprContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
		public AssignContext(SingleExprContext ctx) { copyFrom(ctx); }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitAssign(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitAssign(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -569,9 +569,9 @@ public class BasicParser extends Parser {
 | 
			
		|||
			int _alt;
 | 
			
		||||
			enterOuterAlt(_localctx, 1);
 | 
			
		||||
			{
 | 
			
		||||
			setState(116);
 | 
			
		||||
			setState(120);
 | 
			
		||||
			_errHandler.sync(this);
 | 
			
		||||
			switch ( getInterpreter().adaptivePredict(_input,7,_ctx) ) {
 | 
			
		||||
			switch ( getInterpreter().adaptivePredict(_input,9,_ctx) ) {
 | 
			
		||||
			case 1:
 | 
			
		||||
				{
 | 
			
		||||
				_localctx = new ParensContext(_localctx);
 | 
			
		||||
| 
						 | 
				
			
			@ -670,25 +670,33 @@ public class BasicParser extends Parser {
 | 
			
		|||
				variable();
 | 
			
		||||
				setState(57);
 | 
			
		||||
				match(PAROPEN);
 | 
			
		||||
				setState(58);
 | 
			
		||||
				expr();
 | 
			
		||||
				setState(63);
 | 
			
		||||
				setState(66);
 | 
			
		||||
				_errHandler.sync(this);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				while (_la==LISTDELIM) {
 | 
			
		||||
				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << PAROPEN) | (1L << BRAOPEN) | (1L << IN) | (1L << OUT) | (1L << IFOPEN) | (1L << WHILEOPEN) | (1L << PLUS) | (1L << MINUS) | (1L << NOT) | (1L << DECLARE) | (1L << FUNCTION) | (1L << CHAR) | (1L << TRUE) | (1L << FALSE) | (1L << IDENTIFIER) | (1L << LITERAL10))) != 0)) {
 | 
			
		||||
					{
 | 
			
		||||
					{
 | 
			
		||||
					setState(59);
 | 
			
		||||
					match(LISTDELIM);
 | 
			
		||||
					setState(60);
 | 
			
		||||
					setState(58);
 | 
			
		||||
					expr();
 | 
			
		||||
					}
 | 
			
		||||
					}
 | 
			
		||||
					setState(65);
 | 
			
		||||
					setState(63);
 | 
			
		||||
					_errHandler.sync(this);
 | 
			
		||||
					_la = _input.LA(1);
 | 
			
		||||
					while (_la==LISTDELIM) {
 | 
			
		||||
						{
 | 
			
		||||
						{
 | 
			
		||||
						setState(59);
 | 
			
		||||
						match(LISTDELIM);
 | 
			
		||||
						setState(60);
 | 
			
		||||
						expr();
 | 
			
		||||
						}
 | 
			
		||||
						}
 | 
			
		||||
						setState(65);
 | 
			
		||||
						_errHandler.sync(this);
 | 
			
		||||
						_la = _input.LA(1);
 | 
			
		||||
					}
 | 
			
		||||
					}
 | 
			
		||||
				}
 | 
			
		||||
				setState(66);
 | 
			
		||||
 | 
			
		||||
				setState(68);
 | 
			
		||||
				match(PARCLOSE);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -697,27 +705,27 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new IfContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(68);
 | 
			
		||||
				match(IFOPEN);
 | 
			
		||||
				setState(69);
 | 
			
		||||
				((IfContext)_localctx).cond = expr();
 | 
			
		||||
				setState(70);
 | 
			
		||||
				match(IFTRUE);
 | 
			
		||||
				match(IFOPEN);
 | 
			
		||||
				setState(71);
 | 
			
		||||
				((IfContext)_localctx).cond = expr();
 | 
			
		||||
				setState(72);
 | 
			
		||||
				match(IFTRUE);
 | 
			
		||||
				setState(73);
 | 
			
		||||
				((IfContext)_localctx).onTrue = expr();
 | 
			
		||||
				setState(74);
 | 
			
		||||
				setState(76);
 | 
			
		||||
				_errHandler.sync(this);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				if (_la==IFFALSE) {
 | 
			
		||||
					{
 | 
			
		||||
					setState(72);
 | 
			
		||||
					setState(74);
 | 
			
		||||
					match(IFFALSE);
 | 
			
		||||
					setState(73);
 | 
			
		||||
					setState(75);
 | 
			
		||||
					((IfContext)_localctx).onFalse = expr();
 | 
			
		||||
					}
 | 
			
		||||
				}
 | 
			
		||||
 | 
			
		||||
				setState(76);
 | 
			
		||||
				setState(78);
 | 
			
		||||
				match(IFCLOSE);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -726,15 +734,15 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new WhileContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(78);
 | 
			
		||||
				match(WHILEOPEN);
 | 
			
		||||
				setState(79);
 | 
			
		||||
				((WhileContext)_localctx).cond = expr();
 | 
			
		||||
				setState(80);
 | 
			
		||||
				match(WHILETRUE);
 | 
			
		||||
				match(WHILEOPEN);
 | 
			
		||||
				setState(81);
 | 
			
		||||
				((WhileContext)_localctx).onTrue = expr();
 | 
			
		||||
				((WhileContext)_localctx).cond = expr();
 | 
			
		||||
				setState(82);
 | 
			
		||||
				match(WHILETRUE);
 | 
			
		||||
				setState(83);
 | 
			
		||||
				((WhileContext)_localctx).onTrue = expr();
 | 
			
		||||
				setState(84);
 | 
			
		||||
				match(WHILECLOSE);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -743,7 +751,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new Prefix1Context(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(84);
 | 
			
		||||
				setState(86);
 | 
			
		||||
				((Prefix1Context)_localctx).op = _input.LT(1);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << PLUS) | (1L << MINUS) | (1L << NOT))) != 0)) ) {
 | 
			
		||||
| 
						 | 
				
			
			@ -754,7 +762,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
					_errHandler.reportMatch(this);
 | 
			
		||||
					consume();
 | 
			
		||||
				}
 | 
			
		||||
				setState(85);
 | 
			
		||||
				setState(87);
 | 
			
		||||
				singleExpr(13);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -763,11 +771,11 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new DeclareContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(86);
 | 
			
		||||
				match(DECLARE);
 | 
			
		||||
				setState(87);
 | 
			
		||||
				type();
 | 
			
		||||
				setState(88);
 | 
			
		||||
				match(DECLARE);
 | 
			
		||||
				setState(89);
 | 
			
		||||
				type();
 | 
			
		||||
				setState(90);
 | 
			
		||||
				match(IDENTIFIER);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -776,39 +784,47 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new FuncDeclareContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(90);
 | 
			
		||||
				match(FUNCTION);
 | 
			
		||||
				setState(91);
 | 
			
		||||
				((FuncDeclareContext)_localctx).result = type();
 | 
			
		||||
				setState(92);
 | 
			
		||||
				((FuncDeclareContext)_localctx).name = match(IDENTIFIER);
 | 
			
		||||
				match(FUNCTION);
 | 
			
		||||
				setState(93);
 | 
			
		||||
				match(PAROPEN);
 | 
			
		||||
				((FuncDeclareContext)_localctx).result = type();
 | 
			
		||||
				setState(94);
 | 
			
		||||
				type();
 | 
			
		||||
				((FuncDeclareContext)_localctx).name = match(IDENTIFIER);
 | 
			
		||||
				setState(95);
 | 
			
		||||
				match(IDENTIFIER);
 | 
			
		||||
				setState(102);
 | 
			
		||||
				match(PAROPEN);
 | 
			
		||||
				setState(107);
 | 
			
		||||
				_errHandler.sync(this);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				while (_la==LISTDELIM) {
 | 
			
		||||
					{
 | 
			
		||||
				if ((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << INTTYPE) | (1L << BOOLTYPE) | (1L << CHARTYPE) | (1L << IDENTIFIER))) != 0)) {
 | 
			
		||||
					{
 | 
			
		||||
					setState(96);
 | 
			
		||||
					match(LISTDELIM);
 | 
			
		||||
					setState(97);
 | 
			
		||||
					type();
 | 
			
		||||
					setState(98);
 | 
			
		||||
					setState(97);
 | 
			
		||||
					match(IDENTIFIER);
 | 
			
		||||
					}
 | 
			
		||||
					}
 | 
			
		||||
					setState(104);
 | 
			
		||||
					_errHandler.sync(this);
 | 
			
		||||
					_la = _input.LA(1);
 | 
			
		||||
					while (_la==LISTDELIM) {
 | 
			
		||||
						{
 | 
			
		||||
						{
 | 
			
		||||
						setState(98);
 | 
			
		||||
						match(LISTDELIM);
 | 
			
		||||
						setState(99);
 | 
			
		||||
						type();
 | 
			
		||||
						setState(100);
 | 
			
		||||
						match(IDENTIFIER);
 | 
			
		||||
						}
 | 
			
		||||
						}
 | 
			
		||||
						setState(106);
 | 
			
		||||
						_errHandler.sync(this);
 | 
			
		||||
						_la = _input.LA(1);
 | 
			
		||||
					}
 | 
			
		||||
					}
 | 
			
		||||
				}
 | 
			
		||||
				setState(105);
 | 
			
		||||
 | 
			
		||||
				setState(109);
 | 
			
		||||
				match(PARCLOSE);
 | 
			
		||||
				setState(106);
 | 
			
		||||
				setState(110);
 | 
			
		||||
				((FuncDeclareContext)_localctx).body = singleExpr(6);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -817,11 +833,11 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new AssignContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(108);
 | 
			
		||||
				setState(112);
 | 
			
		||||
				variable();
 | 
			
		||||
				setState(109);
 | 
			
		||||
				setState(113);
 | 
			
		||||
				match(ASSIGN);
 | 
			
		||||
				setState(110);
 | 
			
		||||
				setState(114);
 | 
			
		||||
				singleExpr(5);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -830,7 +846,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new VarContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(112);
 | 
			
		||||
				setState(116);
 | 
			
		||||
				variable();
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -839,7 +855,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new NumberContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(113);
 | 
			
		||||
				setState(117);
 | 
			
		||||
				match(LITERAL10);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -848,7 +864,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new CharContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(114);
 | 
			
		||||
				setState(118);
 | 
			
		||||
				match(CHAR);
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -857,7 +873,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
				_localctx = new BoolContext(_localctx);
 | 
			
		||||
				_ctx = _localctx;
 | 
			
		||||
				_prevctx = _localctx;
 | 
			
		||||
				setState(115);
 | 
			
		||||
				setState(119);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				if ( !(_la==TRUE || _la==FALSE) ) {
 | 
			
		||||
				_errHandler.recoverInline(this);
 | 
			
		||||
| 
						 | 
				
			
			@ -871,25 +887,25 @@ public class BasicParser extends Parser {
 | 
			
		|||
				break;
 | 
			
		||||
			}
 | 
			
		||||
			_ctx.stop = _input.LT(-1);
 | 
			
		||||
			setState(135);
 | 
			
		||||
			setState(139);
 | 
			
		||||
			_errHandler.sync(this);
 | 
			
		||||
			_alt = getInterpreter().adaptivePredict(_input,9,_ctx);
 | 
			
		||||
			_alt = getInterpreter().adaptivePredict(_input,11,_ctx);
 | 
			
		||||
			while ( _alt!=2 && _alt!=org.antlr.v4.runtime.atn.ATN.INVALID_ALT_NUMBER ) {
 | 
			
		||||
				if ( _alt==1 ) {
 | 
			
		||||
					if ( _parseListeners!=null ) triggerExitRuleEvent();
 | 
			
		||||
					_prevctx = _localctx;
 | 
			
		||||
					{
 | 
			
		||||
					setState(133);
 | 
			
		||||
					setState(137);
 | 
			
		||||
					_errHandler.sync(this);
 | 
			
		||||
					switch ( getInterpreter().adaptivePredict(_input,8,_ctx) ) {
 | 
			
		||||
					switch ( getInterpreter().adaptivePredict(_input,10,_ctx) ) {
 | 
			
		||||
					case 1:
 | 
			
		||||
						{
 | 
			
		||||
						_localctx = new Infix1Context(new SingleExprContext(_parentctx, _parentState));
 | 
			
		||||
						((Infix1Context)_localctx).lhs = _prevctx;
 | 
			
		||||
						pushNewRecursionContext(_localctx, _startState, RULE_singleExpr);
 | 
			
		||||
						setState(118);
 | 
			
		||||
						setState(122);
 | 
			
		||||
						if (!(precpred(_ctx, 12))) throw new FailedPredicateException(this, "precpred(_ctx, 12)");
 | 
			
		||||
						setState(119);
 | 
			
		||||
						setState(123);
 | 
			
		||||
						((Infix1Context)_localctx).op = _input.LT(1);
 | 
			
		||||
						_la = _input.LA(1);
 | 
			
		||||
						if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << MULTIPLY) | (1L << DIVIDE) | (1L << MODULO))) != 0)) ) {
 | 
			
		||||
| 
						 | 
				
			
			@ -900,7 +916,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
							_errHandler.reportMatch(this);
 | 
			
		||||
							consume();
 | 
			
		||||
						}
 | 
			
		||||
						setState(120);
 | 
			
		||||
						setState(124);
 | 
			
		||||
						((Infix1Context)_localctx).rhs = singleExpr(13);
 | 
			
		||||
						}
 | 
			
		||||
						break;
 | 
			
		||||
| 
						 | 
				
			
			@ -909,9 +925,9 @@ public class BasicParser extends Parser {
 | 
			
		|||
						_localctx = new Infix2Context(new SingleExprContext(_parentctx, _parentState));
 | 
			
		||||
						((Infix2Context)_localctx).lhs = _prevctx;
 | 
			
		||||
						pushNewRecursionContext(_localctx, _startState, RULE_singleExpr);
 | 
			
		||||
						setState(121);
 | 
			
		||||
						setState(125);
 | 
			
		||||
						if (!(precpred(_ctx, 11))) throw new FailedPredicateException(this, "precpred(_ctx, 11)");
 | 
			
		||||
						setState(122);
 | 
			
		||||
						setState(126);
 | 
			
		||||
						((Infix2Context)_localctx).op = _input.LT(1);
 | 
			
		||||
						_la = _input.LA(1);
 | 
			
		||||
						if ( !(_la==PLUS || _la==MINUS) ) {
 | 
			
		||||
| 
						 | 
				
			
			@ -922,7 +938,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
							_errHandler.reportMatch(this);
 | 
			
		||||
							consume();
 | 
			
		||||
						}
 | 
			
		||||
						setState(123);
 | 
			
		||||
						setState(127);
 | 
			
		||||
						((Infix2Context)_localctx).rhs = singleExpr(12);
 | 
			
		||||
						}
 | 
			
		||||
						break;
 | 
			
		||||
| 
						 | 
				
			
			@ -931,9 +947,9 @@ public class BasicParser extends Parser {
 | 
			
		|||
						_localctx = new Infix3Context(new SingleExprContext(_parentctx, _parentState));
 | 
			
		||||
						((Infix3Context)_localctx).lhs = _prevctx;
 | 
			
		||||
						pushNewRecursionContext(_localctx, _startState, RULE_singleExpr);
 | 
			
		||||
						setState(124);
 | 
			
		||||
						setState(128);
 | 
			
		||||
						if (!(precpred(_ctx, 10))) throw new FailedPredicateException(this, "precpred(_ctx, 10)");
 | 
			
		||||
						setState(125);
 | 
			
		||||
						setState(129);
 | 
			
		||||
						((Infix3Context)_localctx).op = _input.LT(1);
 | 
			
		||||
						_la = _input.LA(1);
 | 
			
		||||
						if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << LEQ) | (1L << GTE) | (1L << NEQ) | (1L << EQ) | (1L << LT) | (1L << GT))) != 0)) ) {
 | 
			
		||||
| 
						 | 
				
			
			@ -944,7 +960,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
							_errHandler.reportMatch(this);
 | 
			
		||||
							consume();
 | 
			
		||||
						}
 | 
			
		||||
						setState(126);
 | 
			
		||||
						setState(130);
 | 
			
		||||
						((Infix3Context)_localctx).rhs = singleExpr(11);
 | 
			
		||||
						}
 | 
			
		||||
						break;
 | 
			
		||||
| 
						 | 
				
			
			@ -953,11 +969,11 @@ public class BasicParser extends Parser {
 | 
			
		|||
						_localctx = new Infix4Context(new SingleExprContext(_parentctx, _parentState));
 | 
			
		||||
						((Infix4Context)_localctx).lhs = _prevctx;
 | 
			
		||||
						pushNewRecursionContext(_localctx, _startState, RULE_singleExpr);
 | 
			
		||||
						setState(127);
 | 
			
		||||
						setState(131);
 | 
			
		||||
						if (!(precpred(_ctx, 9))) throw new FailedPredicateException(this, "precpred(_ctx, 9)");
 | 
			
		||||
						setState(128);
 | 
			
		||||
						setState(132);
 | 
			
		||||
						match(AND);
 | 
			
		||||
						setState(129);
 | 
			
		||||
						setState(133);
 | 
			
		||||
						((Infix4Context)_localctx).rhs = singleExpr(10);
 | 
			
		||||
						}
 | 
			
		||||
						break;
 | 
			
		||||
| 
						 | 
				
			
			@ -966,20 +982,20 @@ public class BasicParser extends Parser {
 | 
			
		|||
						_localctx = new Infix5Context(new SingleExprContext(_parentctx, _parentState));
 | 
			
		||||
						((Infix5Context)_localctx).lhs = _prevctx;
 | 
			
		||||
						pushNewRecursionContext(_localctx, _startState, RULE_singleExpr);
 | 
			
		||||
						setState(130);
 | 
			
		||||
						setState(134);
 | 
			
		||||
						if (!(precpred(_ctx, 8))) throw new FailedPredicateException(this, "precpred(_ctx, 8)");
 | 
			
		||||
						setState(131);
 | 
			
		||||
						setState(135);
 | 
			
		||||
						match(OR);
 | 
			
		||||
						setState(132);
 | 
			
		||||
						setState(136);
 | 
			
		||||
						((Infix5Context)_localctx).rhs = singleExpr(9);
 | 
			
		||||
						}
 | 
			
		||||
						break;
 | 
			
		||||
					}
 | 
			
		||||
					} 
 | 
			
		||||
				}
 | 
			
		||||
				setState(137);
 | 
			
		||||
				setState(141);
 | 
			
		||||
				_errHandler.sync(this);
 | 
			
		||||
				_alt = getInterpreter().adaptivePredict(_input,9,_ctx);
 | 
			
		||||
				_alt = getInterpreter().adaptivePredict(_input,11,_ctx);
 | 
			
		||||
			}
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -996,9 +1012,9 @@ public class BasicParser extends Parser {
 | 
			
		|||
 | 
			
		||||
	public static class TypeContext extends ParserRuleContext {
 | 
			
		||||
		public Token staticType;
 | 
			
		||||
		public TerminalNode INTTYPE() { return getToken(BasicParser.INTTYPE, 0); }
 | 
			
		||||
		public TerminalNode BOOLTYPE() { return getToken(BasicParser.BOOLTYPE, 0); }
 | 
			
		||||
		public TerminalNode CHARTYPE() { return getToken(BasicParser.CHARTYPE, 0); }
 | 
			
		||||
		public TerminalNode INTTYPE() { return getToken(BoppiParser.INTTYPE, 0); }
 | 
			
		||||
		public TerminalNode BOOLTYPE() { return getToken(BoppiParser.BOOLTYPE, 0); }
 | 
			
		||||
		public TerminalNode CHARTYPE() { return getToken(BoppiParser.CHARTYPE, 0); }
 | 
			
		||||
		public VariableContext variable() {
 | 
			
		||||
			return getRuleContext(VariableContext.class,0);
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -1008,7 +1024,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		@Override public int getRuleIndex() { return RULE_type; }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitType(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitType(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -1018,7 +1034,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		enterRule(_localctx, 6, RULE_type);
 | 
			
		||||
		int _la;
 | 
			
		||||
		try {
 | 
			
		||||
			setState(140);
 | 
			
		||||
			setState(144);
 | 
			
		||||
			_errHandler.sync(this);
 | 
			
		||||
			switch (_input.LA(1)) {
 | 
			
		||||
			case INTTYPE:
 | 
			
		||||
| 
						 | 
				
			
			@ -1026,7 +1042,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
			case CHARTYPE:
 | 
			
		||||
				enterOuterAlt(_localctx, 1);
 | 
			
		||||
				{
 | 
			
		||||
				setState(138);
 | 
			
		||||
				setState(142);
 | 
			
		||||
				((TypeContext)_localctx).staticType = _input.LT(1);
 | 
			
		||||
				_la = _input.LA(1);
 | 
			
		||||
				if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << INTTYPE) | (1L << BOOLTYPE) | (1L << CHARTYPE))) != 0)) ) {
 | 
			
		||||
| 
						 | 
				
			
			@ -1042,7 +1058,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
			case IDENTIFIER:
 | 
			
		||||
				enterOuterAlt(_localctx, 2);
 | 
			
		||||
				{
 | 
			
		||||
				setState(139);
 | 
			
		||||
				setState(143);
 | 
			
		||||
				variable();
 | 
			
		||||
				}
 | 
			
		||||
				break;
 | 
			
		||||
| 
						 | 
				
			
			@ -1062,14 +1078,14 @@ public class BasicParser extends Parser {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	public static class VariableContext extends ParserRuleContext {
 | 
			
		||||
		public TerminalNode IDENTIFIER() { return getToken(BasicParser.IDENTIFIER, 0); }
 | 
			
		||||
		public TerminalNode IDENTIFIER() { return getToken(BoppiParser.IDENTIFIER, 0); }
 | 
			
		||||
		public VariableContext(ParserRuleContext parent, int invokingState) {
 | 
			
		||||
			super(parent, invokingState);
 | 
			
		||||
		}
 | 
			
		||||
		@Override public int getRuleIndex() { return RULE_variable; }
 | 
			
		||||
		@Override
 | 
			
		||||
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
 | 
			
		||||
			if ( visitor instanceof BasicVisitor ) return ((BasicVisitor<? extends T>)visitor).visitVariable(this);
 | 
			
		||||
			if ( visitor instanceof BoppiVisitor ) return ((BoppiVisitor<? extends T>)visitor).visitVariable(this);
 | 
			
		||||
			else return visitor.visitChildren(this);
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
| 
						 | 
				
			
			@ -1080,7 +1096,7 @@ public class BasicParser extends Parser {
 | 
			
		|||
		try {
 | 
			
		||||
			enterOuterAlt(_localctx, 1);
 | 
			
		||||
			{
 | 
			
		||||
			setState(142);
 | 
			
		||||
			setState(146);
 | 
			
		||||
			match(IDENTIFIER);
 | 
			
		||||
			}
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -1119,47 +1135,49 @@ public class BasicParser extends Parser {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	public static final String _serializedATN =
 | 
			
		||||
		"\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3-\u0093\4\2\t\2\4"+
 | 
			
		||||
		"\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3-\u0097\4\2\t\2\4"+
 | 
			
		||||
		"\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\3\2\3\2\3\2\3\3\3\3\3\3\5\3\23\n\3\7\3"+
 | 
			
		||||
		"\25\n\3\f\3\16\3\30\13\3\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3"+
 | 
			
		||||
		"\4\3\4\3\4\7\4(\n\4\f\4\16\4+\13\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\7\4\64"+
 | 
			
		||||
		"\n\4\f\4\16\4\67\13\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\7\4@\n\4\f\4\16\4C\13"+
 | 
			
		||||
		"\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\5\4M\n\4\3\4\3\4\3\4\3\4\3\4\3\4\3"+
 | 
			
		||||
		"\4\5\4E\n\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\5\4O\n\4\3\4\3\4\3\4\3\4\3"+
 | 
			
		||||
		"\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4"+
 | 
			
		||||
		"\7\4g\n\4\f\4\16\4j\13\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\5"+
 | 
			
		||||
		"\4w\n\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\7"+
 | 
			
		||||
		"\4\u0088\n\4\f\4\16\4\u008b\13\4\3\5\3\5\5\5\u008f\n\5\3\6\3\6\3\6\2\3"+
 | 
			
		||||
		"\6\7\2\4\6\b\n\2\b\3\2\20\22\3\2\'(\3\2\23\25\3\2\20\21\3\2\26\33\3\2"+
 | 
			
		||||
		" \"\2\u00a8\2\f\3\2\2\2\4\17\3\2\2\2\6v\3\2\2\2\b\u008e\3\2\2\2\n\u0090"+
 | 
			
		||||
		"\3\2\2\2\f\r\5\4\3\2\r\16\7\2\2\3\16\3\3\2\2\2\17\26\5\6\4\2\20\22\7$"+
 | 
			
		||||
		"\2\2\21\23\5\6\4\2\22\21\3\2\2\2\22\23\3\2\2\2\23\25\3\2\2\2\24\20\3\2"+
 | 
			
		||||
		"\2\2\25\30\3\2\2\2\26\24\3\2\2\2\26\27\3\2\2\2\27\5\3\2\2\2\30\26\3\2"+
 | 
			
		||||
		"\2\2\31\32\b\4\1\2\32\33\7\3\2\2\33\34\5\4\3\2\34\35\7\4\2\2\35w\3\2\2"+
 | 
			
		||||
		"\2\36\37\7\5\2\2\37 \5\4\3\2 !\7\6\2\2!w\3\2\2\2\"#\7\7\2\2#$\7\3\2\2"+
 | 
			
		||||
		"$)\5\n\6\2%&\7%\2\2&(\5\n\6\2\'%\3\2\2\2(+\3\2\2\2)\'\3\2\2\2)*\3\2\2"+
 | 
			
		||||
		"\2*,\3\2\2\2+)\3\2\2\2,-\7\4\2\2-w\3\2\2\2./\7\b\2\2/\60\7\3\2\2\60\65"+
 | 
			
		||||
		"\5\4\3\2\61\62\7%\2\2\62\64\5\4\3\2\63\61\3\2\2\2\64\67\3\2\2\2\65\63"+
 | 
			
		||||
		"\3\2\2\2\65\66\3\2\2\2\668\3\2\2\2\67\65\3\2\2\289\7\4\2\29w\3\2\2\2:"+
 | 
			
		||||
		";\5\n\6\2;<\7\3\2\2<A\5\4\3\2=>\7%\2\2>@\5\4\3\2?=\3\2\2\2@C\3\2\2\2A"+
 | 
			
		||||
		"?\3\2\2\2AB\3\2\2\2BD\3\2\2\2CA\3\2\2\2DE\7\4\2\2Ew\3\2\2\2FG\7\t\2\2"+
 | 
			
		||||
		"GH\5\4\3\2HI\7\n\2\2IL\5\4\3\2JK\7\13\2\2KM\5\4\3\2LJ\3\2\2\2LM\3\2\2"+
 | 
			
		||||
		"\2MN\3\2\2\2NO\7\f\2\2Ow\3\2\2\2PQ\7\r\2\2QR\5\4\3\2RS\7\16\2\2ST\5\4"+
 | 
			
		||||
		"\3\2TU\7\17\2\2Uw\3\2\2\2VW\t\2\2\2Ww\5\6\4\17XY\7\36\2\2YZ\5\b\5\2Z["+
 | 
			
		||||
		"\7)\2\2[w\3\2\2\2\\]\7\37\2\2]^\5\b\5\2^_\7)\2\2_`\7\3\2\2`a\5\b\5\2a"+
 | 
			
		||||
		"h\7)\2\2bc\7%\2\2cd\5\b\5\2de\7)\2\2eg\3\2\2\2fb\3\2\2\2gj\3\2\2\2hf\3"+
 | 
			
		||||
		"\2\2\2hi\3\2\2\2ik\3\2\2\2jh\3\2\2\2kl\7\4\2\2lm\5\6\4\bmw\3\2\2\2no\5"+
 | 
			
		||||
		"\n\6\2op\7#\2\2pq\5\6\4\7qw\3\2\2\2rw\5\n\6\2sw\7*\2\2tw\7&\2\2uw\t\3"+
 | 
			
		||||
		"\2\2v\31\3\2\2\2v\36\3\2\2\2v\"\3\2\2\2v.\3\2\2\2v:\3\2\2\2vF\3\2\2\2"+
 | 
			
		||||
		"vP\3\2\2\2vV\3\2\2\2vX\3\2\2\2v\\\3\2\2\2vn\3\2\2\2vr\3\2\2\2vs\3\2\2"+
 | 
			
		||||
		"\2vt\3\2\2\2vu\3\2\2\2w\u0089\3\2\2\2xy\f\16\2\2yz\t\4\2\2z\u0088\5\6"+
 | 
			
		||||
		"\4\17{|\f\r\2\2|}\t\5\2\2}\u0088\5\6\4\16~\177\f\f\2\2\177\u0080\t\6\2"+
 | 
			
		||||
		"\2\u0080\u0088\5\6\4\r\u0081\u0082\f\13\2\2\u0082\u0083\7\34\2\2\u0083"+
 | 
			
		||||
		"\u0088\5\6\4\f\u0084\u0085\f\n\2\2\u0085\u0086\7\35\2\2\u0086\u0088\5"+
 | 
			
		||||
		"\6\4\13\u0087x\3\2\2\2\u0087{\3\2\2\2\u0087~\3\2\2\2\u0087\u0081\3\2\2"+
 | 
			
		||||
		"\2\u0087\u0084\3\2\2\2\u0088\u008b\3\2\2\2\u0089\u0087\3\2\2\2\u0089\u008a"+
 | 
			
		||||
		"\3\2\2\2\u008a\7\3\2\2\2\u008b\u0089\3\2\2\2\u008c\u008f\t\7\2\2\u008d"+
 | 
			
		||||
		"\u008f\5\n\6\2\u008e\u008c\3\2\2\2\u008e\u008d\3\2\2\2\u008f\t\3\2\2\2"+
 | 
			
		||||
		"\u0090\u0091\7)\2\2\u0091\13\3\2\2\2\r\22\26)\65ALhv\u0087\u0089\u008e";
 | 
			
		||||
		"\3\4\3\4\7\4i\n\4\f\4\16\4l\13\4\5\4n\n\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4"+
 | 
			
		||||
		"\3\4\3\4\3\4\3\4\5\4{\n\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4\3\4"+
 | 
			
		||||
		"\3\4\3\4\3\4\3\4\7\4\u008c\n\4\f\4\16\4\u008f\13\4\3\5\3\5\5\5\u0093\n"+
 | 
			
		||||
		"\5\3\6\3\6\3\6\2\3\6\7\2\4\6\b\n\2\b\3\2\20\22\3\2\'(\3\2\23\25\3\2\20"+
 | 
			
		||||
		"\21\3\2\26\33\3\2 \"\2\u00ae\2\f\3\2\2\2\4\17\3\2\2\2\6z\3\2\2\2\b\u0092"+
 | 
			
		||||
		"\3\2\2\2\n\u0094\3\2\2\2\f\r\5\4\3\2\r\16\7\2\2\3\16\3\3\2\2\2\17\26\5"+
 | 
			
		||||
		"\6\4\2\20\22\7$\2\2\21\23\5\6\4\2\22\21\3\2\2\2\22\23\3\2\2\2\23\25\3"+
 | 
			
		||||
		"\2\2\2\24\20\3\2\2\2\25\30\3\2\2\2\26\24\3\2\2\2\26\27\3\2\2\2\27\5\3"+
 | 
			
		||||
		"\2\2\2\30\26\3\2\2\2\31\32\b\4\1\2\32\33\7\3\2\2\33\34\5\4\3\2\34\35\7"+
 | 
			
		||||
		"\4\2\2\35{\3\2\2\2\36\37\7\5\2\2\37 \5\4\3\2 !\7\6\2\2!{\3\2\2\2\"#\7"+
 | 
			
		||||
		"\7\2\2#$\7\3\2\2$)\5\n\6\2%&\7%\2\2&(\5\n\6\2\'%\3\2\2\2(+\3\2\2\2)\'"+
 | 
			
		||||
		"\3\2\2\2)*\3\2\2\2*,\3\2\2\2+)\3\2\2\2,-\7\4\2\2-{\3\2\2\2./\7\b\2\2/"+
 | 
			
		||||
		"\60\7\3\2\2\60\65\5\4\3\2\61\62\7%\2\2\62\64\5\4\3\2\63\61\3\2\2\2\64"+
 | 
			
		||||
		"\67\3\2\2\2\65\63\3\2\2\2\65\66\3\2\2\2\668\3\2\2\2\67\65\3\2\2\289\7"+
 | 
			
		||||
		"\4\2\29{\3\2\2\2:;\5\n\6\2;D\7\3\2\2<A\5\4\3\2=>\7%\2\2>@\5\4\3\2?=\3"+
 | 
			
		||||
		"\2\2\2@C\3\2\2\2A?\3\2\2\2AB\3\2\2\2BE\3\2\2\2CA\3\2\2\2D<\3\2\2\2DE\3"+
 | 
			
		||||
		"\2\2\2EF\3\2\2\2FG\7\4\2\2G{\3\2\2\2HI\7\t\2\2IJ\5\4\3\2JK\7\n\2\2KN\5"+
 | 
			
		||||
		"\4\3\2LM\7\13\2\2MO\5\4\3\2NL\3\2\2\2NO\3\2\2\2OP\3\2\2\2PQ\7\f\2\2Q{"+
 | 
			
		||||
		"\3\2\2\2RS\7\r\2\2ST\5\4\3\2TU\7\16\2\2UV\5\4\3\2VW\7\17\2\2W{\3\2\2\2"+
 | 
			
		||||
		"XY\t\2\2\2Y{\5\6\4\17Z[\7\36\2\2[\\\5\b\5\2\\]\7)\2\2]{\3\2\2\2^_\7\37"+
 | 
			
		||||
		"\2\2_`\5\b\5\2`a\7)\2\2am\7\3\2\2bc\5\b\5\2cj\7)\2\2de\7%\2\2ef\5\b\5"+
 | 
			
		||||
		"\2fg\7)\2\2gi\3\2\2\2hd\3\2\2\2il\3\2\2\2jh\3\2\2\2jk\3\2\2\2kn\3\2\2"+
 | 
			
		||||
		"\2lj\3\2\2\2mb\3\2\2\2mn\3\2\2\2no\3\2\2\2op\7\4\2\2pq\5\6\4\bq{\3\2\2"+
 | 
			
		||||
		"\2rs\5\n\6\2st\7#\2\2tu\5\6\4\7u{\3\2\2\2v{\5\n\6\2w{\7*\2\2x{\7&\2\2"+
 | 
			
		||||
		"y{\t\3\2\2z\31\3\2\2\2z\36\3\2\2\2z\"\3\2\2\2z.\3\2\2\2z:\3\2\2\2zH\3"+
 | 
			
		||||
		"\2\2\2zR\3\2\2\2zX\3\2\2\2zZ\3\2\2\2z^\3\2\2\2zr\3\2\2\2zv\3\2\2\2zw\3"+
 | 
			
		||||
		"\2\2\2zx\3\2\2\2zy\3\2\2\2{\u008d\3\2\2\2|}\f\16\2\2}~\t\4\2\2~\u008c"+
 | 
			
		||||
		"\5\6\4\17\177\u0080\f\r\2\2\u0080\u0081\t\5\2\2\u0081\u008c\5\6\4\16\u0082"+
 | 
			
		||||
		"\u0083\f\f\2\2\u0083\u0084\t\6\2\2\u0084\u008c\5\6\4\r\u0085\u0086\f\13"+
 | 
			
		||||
		"\2\2\u0086\u0087\7\34\2\2\u0087\u008c\5\6\4\f\u0088\u0089\f\n\2\2\u0089"+
 | 
			
		||||
		"\u008a\7\35\2\2\u008a\u008c\5\6\4\13\u008b|\3\2\2\2\u008b\177\3\2\2\2"+
 | 
			
		||||
		"\u008b\u0082\3\2\2\2\u008b\u0085\3\2\2\2\u008b\u0088\3\2\2\2\u008c\u008f"+
 | 
			
		||||
		"\3\2\2\2\u008d\u008b\3\2\2\2\u008d\u008e\3\2\2\2\u008e\7\3\2\2\2\u008f"+
 | 
			
		||||
		"\u008d\3\2\2\2\u0090\u0093\t\7\2\2\u0091\u0093\5\n\6\2\u0092\u0090\3\2"+
 | 
			
		||||
		"\2\2\u0092\u0091\3\2\2\2\u0093\t\3\2\2\2\u0094\u0095\7)\2\2\u0095\13\3"+
 | 
			
		||||
		"\2\2\2\17\22\26)\65ADNjmz\u008b\u008d\u0092";
 | 
			
		||||
	public static final ATN _ATN =
 | 
			
		||||
		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
 | 
			
		||||
	static {
 | 
			
		||||
| 
						 | 
				
			
			@ -1,177 +1,177 @@
 | 
			
		|||
// Generated from Basic.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi;
 | 
			
		||||
// Generated from Boppi.g4 by ANTLR 4.7
 | 
			
		||||
package pp.s1184725.boppi.antlr;
 | 
			
		||||
import org.antlr.v4.runtime.tree.ParseTreeVisitor;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * This interface defines a complete generic visitor for a parse tree produced
 | 
			
		||||
 * by {@link BasicParser}.
 | 
			
		||||
 * by {@link BoppiParser}.
 | 
			
		||||
 *
 | 
			
		||||
 * @param <T> The return type of the visit operation. Use {@link Void} for
 | 
			
		||||
 * operations with no return type.
 | 
			
		||||
 */
 | 
			
		||||
public interface BasicVisitor<T> extends ParseTreeVisitor<T> {
 | 
			
		||||
public interface BoppiVisitor<T> extends ParseTreeVisitor<T> {
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by {@link BasicParser#program}.
 | 
			
		||||
	 * Visit a parse tree produced by {@link BoppiParser#program}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitProgram(BasicParser.ProgramContext ctx);
 | 
			
		||||
	T visitProgram(BoppiParser.ProgramContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by {@link BasicParser#expr}.
 | 
			
		||||
	 * Visit a parse tree produced by {@link BoppiParser#expr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitExpr(BasicParser.ExprContext ctx);
 | 
			
		||||
	T visitExpr(BoppiParser.ExprContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code parens}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitParens(BasicParser.ParensContext ctx);
 | 
			
		||||
	T visitParens(BoppiParser.ParensContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code read}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitRead(BasicParser.ReadContext ctx);
 | 
			
		||||
	T visitRead(BoppiParser.ReadContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code declare}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitDeclare(BasicParser.DeclareContext ctx);
 | 
			
		||||
	T visitDeclare(BoppiParser.DeclareContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code bool}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitBool(BasicParser.BoolContext ctx);
 | 
			
		||||
	T visitBool(BoppiParser.BoolContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code var}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitVar(BasicParser.VarContext ctx);
 | 
			
		||||
	T visitVar(BoppiParser.VarContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code infix2}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitInfix2(BasicParser.Infix2Context ctx);
 | 
			
		||||
	T visitInfix2(BoppiParser.Infix2Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code infix3}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitInfix3(BasicParser.Infix3Context ctx);
 | 
			
		||||
	T visitInfix3(BoppiParser.Infix3Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code infix1}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitInfix1(BasicParser.Infix1Context ctx);
 | 
			
		||||
	T visitInfix1(BoppiParser.Infix1Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code while}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitWhile(BasicParser.WhileContext ctx);
 | 
			
		||||
	T visitWhile(BoppiParser.WhileContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code infix4}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitInfix4(BasicParser.Infix4Context ctx);
 | 
			
		||||
	T visitInfix4(BoppiParser.Infix4Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code infix5}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitInfix5(BasicParser.Infix5Context ctx);
 | 
			
		||||
	T visitInfix5(BoppiParser.Infix5Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code call}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitCall(BasicParser.CallContext ctx);
 | 
			
		||||
	T visitCall(BoppiParser.CallContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code number}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitNumber(BasicParser.NumberContext ctx);
 | 
			
		||||
	T visitNumber(BoppiParser.NumberContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code funcDeclare}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitFuncDeclare(BasicParser.FuncDeclareContext ctx);
 | 
			
		||||
	T visitFuncDeclare(BoppiParser.FuncDeclareContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code char}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitChar(BasicParser.CharContext ctx);
 | 
			
		||||
	T visitChar(BoppiParser.CharContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code block}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitBlock(BasicParser.BlockContext ctx);
 | 
			
		||||
	T visitBlock(BoppiParser.BlockContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code write}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitWrite(BasicParser.WriteContext ctx);
 | 
			
		||||
	T visitWrite(BoppiParser.WriteContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code if}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitIf(BasicParser.IfContext ctx);
 | 
			
		||||
	T visitIf(BoppiParser.IfContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code prefix1}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitPrefix1(BasicParser.Prefix1Context ctx);
 | 
			
		||||
	T visitPrefix1(BoppiParser.Prefix1Context ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by the {@code assign}
 | 
			
		||||
	 * labeled alternative in {@link BasicParser#singleExpr}.
 | 
			
		||||
	 * labeled alternative in {@link BoppiParser#singleExpr}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitAssign(BasicParser.AssignContext ctx);
 | 
			
		||||
	T visitAssign(BoppiParser.AssignContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by {@link BasicParser#type}.
 | 
			
		||||
	 * Visit a parse tree produced by {@link BoppiParser#type}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitType(BasicParser.TypeContext ctx);
 | 
			
		||||
	T visitType(BoppiParser.TypeContext ctx);
 | 
			
		||||
	/**
 | 
			
		||||
	 * Visit a parse tree produced by {@link BasicParser#variable}.
 | 
			
		||||
	 * Visit a parse tree produced by {@link BoppiParser#variable}.
 | 
			
		||||
	 * @param ctx the parse tree
 | 
			
		||||
	 * @return the visitor result
 | 
			
		||||
	 */
 | 
			
		||||
	T visitVariable(BasicParser.VariableContext ctx);
 | 
			
		||||
	T visitVariable(BoppiParser.VariableContext ctx);
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			@ -9,6 +9,6 @@ import org.junit.runners.Suite.SuiteClasses;
 | 
			
		|||
@RunWith(Suite.class)
 | 
			
		||||
@SuiteClasses({ CheckerTest.class, GeneratorTest.class, ParserTest.class })
 | 
			
		||||
public class AllTests {
 | 
			
		||||
	static final Path directory = Paths.get("src/pp/s1184725/boppi/test/parsing/");
 | 
			
		||||
	static final Path directory = Paths.get("src/pp/s1184725/boppi/test/programs/");
 | 
			
		||||
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -8,6 +8,7 @@ import java.util.logging.*;
 | 
			
		|||
 | 
			
		||||
import org.antlr.v4.runtime.CharStream;
 | 
			
		||||
import org.antlr.v4.runtime.tree.ParseTree;
 | 
			
		||||
import org.apache.commons.lang3.StringUtils;
 | 
			
		||||
import org.junit.Test;
 | 
			
		||||
 | 
			
		||||
import pp.iloc.Simulator;
 | 
			
		||||
| 
						 | 
				
			
			@ -17,6 +18,7 @@ import pp.s1184725.boppi.*;
 | 
			
		|||
public class GeneratorTest {
 | 
			
		||||
	private List<LogRecord> log;
 | 
			
		||||
	private String[] out;
 | 
			
		||||
	private Level logLevel = Level.SEVERE;
 | 
			
		||||
 | 
			
		||||
	private void compileAndRunString(String code, String... input) {
 | 
			
		||||
		compileAndRun(ToolChain.getCharStream(code), String.join("\n", input) + "\n");
 | 
			
		||||
| 
						 | 
				
			
			@ -29,10 +31,11 @@ public class GeneratorTest {
 | 
			
		|||
	private void compileAndRun(CharStream stream, String input) {
 | 
			
		||||
		Logger logger = Logger.getAnonymousLogger();
 | 
			
		||||
		log = ToolChain.makeListLog(logger);
 | 
			
		||||
		logger.setLevel(logLevel);
 | 
			
		||||
 | 
			
		||||
		ParseTree ast = ToolChain.getParser(ToolChain.getLexer(stream, logger), logger).program();
 | 
			
		||||
		Annotations annotations = ToolChain.getAnnotations(ast, logger);
 | 
			
		||||
		Program program = ToolChain.getILOC(ast, annotations);
 | 
			
		||||
		Program program = ToolChain.getILOC(ast, logger, annotations);
 | 
			
		||||
 | 
			
		||||
		if (Simulator.DEBUG)
 | 
			
		||||
			System.out.println(program.prettyPrint());
 | 
			
		||||
| 
						 | 
				
			
			@ -40,10 +43,33 @@ public class GeneratorTest {
 | 
			
		|||
		out = ToolChain.execute(program, logger, input).split("\n");
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@SuppressWarnings("unused")
 | 
			
		||||
	private void debugRun(CharStream stream, String... input) {
 | 
			
		||||
		Simulator.DEBUG = true;
 | 
			
		||||
		String in = String.join("\n", input) + "\n";
 | 
			
		||||
		Logger logger = Logger.getAnonymousLogger();
 | 
			
		||||
		log = ToolChain.makeListLog(logger);
 | 
			
		||||
		logger.setLevel(Level.FINEST);
 | 
			
		||||
 | 
			
		||||
		ParseTree ast = ToolChain.getParser(ToolChain.getLexer(stream, logger), logger).program();
 | 
			
		||||
		Annotations annotations = ToolChain.getAnnotations(ast, logger);
 | 
			
		||||
		Program program = ToolChain.getILOC(ast, logger, annotations);
 | 
			
		||||
 | 
			
		||||
		System.out.println(program.prettyPrint());
 | 
			
		||||
 | 
			
		||||
		out = ToolChain.execute(program, logger, in).split("\n");
 | 
			
		||||
 | 
			
		||||
		log.forEach((entry) -> System.out.println(entry.getMessage()));
 | 
			
		||||
		Simulator.DEBUG = false;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Test
 | 
			
		||||
	public void correctExpressionTest() {
 | 
			
		||||
		compileAndRunFile("simpleExpression.boppi");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
 | 
			
		||||
		compileAndRunString(StringUtils.repeat("1+(", 8) + "1" + StringUtils.repeat(")", 8));
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Test
 | 
			
		||||
| 
						 | 
				
			
			@ -87,7 +113,7 @@ public class GeneratorTest {
 | 
			
		|||
	}
 | 
			
		||||
 | 
			
		||||
	@Test
 | 
			
		||||
	public void correctFunctionTest() {
 | 
			
		||||
	public void correctSimpleFunctionTest() {
 | 
			
		||||
		compileAndRunString("function int id(int a) a; 1");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -108,7 +134,10 @@ public class GeneratorTest {
 | 
			
		|||
		compileAndRunString("function char const(char a, char b) a; print(const('A', 'T'))");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
		assertThat(out, is(arrayContaining("A")));
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	@Test
 | 
			
		||||
	public void correctComplexFunctionTest() {
 | 
			
		||||
		compileAndRunString("function int factorial(int n) {if (n > 1) then n*factorial(n-1) else 1 fi}");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -117,6 +146,9 @@ public class GeneratorTest {
 | 
			
		|||
				"5");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
		assertThat(out, is(arrayContaining("120")));
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
		compileAndRunFile("simpleFunctionPassing.boppi");
 | 
			
		||||
		assertThat(log, is(empty()));
 | 
			
		||||
		assertThat(out, is(arrayContaining("40", "104", "1", "2", "8")));
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -0,0 +1,38 @@
 | 
			
		|||
var int undefined;
 | 
			
		||||
function int intDiadic(int a, int b) undefined;
 | 
			
		||||
 | 
			
		||||
function intDiadic getMultiply() {
 | 
			
		||||
    function int multiply(int a, int b)
 | 
			
		||||
        a*b;
 | 
			
		||||
    multiply
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
function int biasedMultiply(int a, int b) a*b+4;
 | 
			
		||||
 | 
			
		||||
var intDiadic myMultiply;
 | 
			
		||||
myMultiply := getMultiply();
 | 
			
		||||
print(myMultiply(5, 8));
 | 
			
		||||
 | 
			
		||||
myMultiply := biasedMultiply;
 | 
			
		||||
print(myMultiply(10, 10));
 | 
			
		||||
 | 
			
		||||
function int fibonacci(int n) {
 | 
			
		||||
    var int start0; start0 := 1;
 | 
			
		||||
    var int start1; start1 := 1;
 | 
			
		||||
 | 
			
		||||
    function int doFibonacci(int n)
 | 
			
		||||
        if n == 0 then
 | 
			
		||||
            start0
 | 
			
		||||
        else
 | 
			
		||||
            if n == 1 then
 | 
			
		||||
                start1
 | 
			
		||||
            else
 | 
			
		||||
                doFibonacci(n-1)+doFibonacci(n-2)
 | 
			
		||||
            fi
 | 
			
		||||
        fi
 | 
			
		||||
    ;
 | 
			
		||||
 | 
			
		||||
    doFibonacci(n)
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
print(fibonacci(1), fibonacci(2), fibonacci(5));
 | 
			
		||||
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		Reference in New Issue