Examples with WalkBy ast.ExpCore.WalkBy used on opensource projects

Example 1 with WalkBy

use of ast.ExpCore.WalkBy in project L42 by ElvisResearchGroup.

the class ExtractCtxVal method visit.

public Ctx<Redex> visit(Block s) {
    Ctx<Redex> res = checkRedex(s);
    if (res != null) {
        return res;
    }
    for (int i = 0; i < s.getDecs().size(); i++) {
        //final restrictions
        int ii = i;
        Dec di = s.getDecs().get(i);
        boolean isDv = new IsValue(p).validDv(di);
        Redex isGarbage = null;
        if (isDv && di.getInner() instanceof Block) {
            Block diB = (Block) di.getInner();
            isGarbage = IsValue.nestedGarbage(diB);
        }
        if (isGarbage != null) {
            List<Block.Dec> ds = new ArrayList<Block.Dec>(s.getDecs());
            ds.set(ii, di.withInner(new WalkBy()));
            return new Ctx<Redex>(s.withDecs(ds), isGarbage);
        }
        if (isDv) {
            continue;
        }
        //otherwise, i is the first non dv
        return lift(di.getInner().accept(this), ctx -> {
            List<Block.Dec> es = new ArrayList<Block.Dec>(s.getDecs());
            es.set(ii, es.get(ii).withInner(ctx));
            return s.withDecs(es);
        });
    }
    if (!s.getOns().isEmpty()) {
        return null;
    }
    return lift(s.getInner().accept(this), ctx -> s.withInner(ctx));
}

Example 2 with WalkBy

use of ast.ExpCore.WalkBy in project L42 by ElvisResearchGroup.

the class HB method visit.

@Override
public ExpCore visit(Block s) {
    ExpCore result = null;
    for (Block.Dec di : s.getDecs()) {
        result = acc(result, di.getInner().accept(this));
    }
    result = acc(result, s.getInner().accept(this));
    if (result == null && onlyAroundHole) {
        return null;
    }
    assert !onlyAroundHole || result instanceof WalkBy : onlyAroundHole + " " + result;
    for (Block.Dec dec : s.getDecs()) {
        if (xs.contains(dec.getX())) {
            throw new ErrorMessage.VariableDeclaredMultipleTimes(dec.getX(), s.getP());
        }
        this.xs.add(dec.getX());
        this.xsRes.add(dec.getX());
    }
    try {
        if (!onlyAroundHole && !s.getOns().isEmpty()) {
            for (On on : s.getOns()) {
                if (xs.contains(on.getX())) {
                    throw new ErrorMessage.VariableDeclaredMultipleTimes(on.getX(), s.getP());
                }
                xs.add(on.getX());
                xsRes.add(on.getX());
                on.getInner().accept(this);
                xs.remove(on.getX());
            }
        }
        return result;
    } finally {
        for (Block.Dec dec : s.getDecs()) {
            this.xs.remove(dec.getX());
        }
    }
}

Example 3 with WalkBy

use of ast.ExpCore.WalkBy in project L42 by ElvisResearchGroup.

the class ExtractCtxUpToX method visit.

public Ctx<Block> visit(Block s) {
    int xPos = s.domDecs().indexOf(x);
    if (xPos != -1 && IsCtx.of(s)) {
        return new Ctx<Block>(new WalkBy(), s);
    }
    List<Block.Dec> newDecs = new ArrayList<Block.Dec>();
    Ctx<Block> res = null;
    for (Block.Dec dec : s.getDecs()) {
        if (!IsCtx.of(dec.getInner())) {
            newDecs.add(dec);
            continue;
        }
        res = dec.getInner().accept(this);
        newDecs.add(dec.withInner(res.ctx));
    }
    if (res != null) {
        res.ctx = s.withDecs(newDecs);
        return res;
    }
    assert IsCtx.of(s.getInner());
    assert s.getOns().isEmpty();
    res = s.getInner().accept(this);
    res.ctx = s.withInner(res.ctx);
    return res;
}