public virtual void PostWalk(BinaryExpr node) { }
public override void PostWalk(BinaryExpr node) { }
// BinaryExpr
public virtual bool Walk(BinaryExpr node) { return true; }
// BinaryExpr
public override bool Walk(BinaryExpr node) { return false; }
private Expr ParseMultiplicativeExpr()
{
Expr ret = ParsePrefixedExpr();
if (ret == null)
return ret;
TotemOperator op;
while (IsMultiplicativeToken(PeekToken(), out op))
{
Token t = NextToken();
var start = ret.StartIndex;
ret = new BinaryExpr(op, ret, ParsePrefixedExpr());
ret.SetLoc(_globalParent, start, GetEnd());
}
return ret;
}
private Expr ParseRelationalExpr()
{
Expr ret = ParseAdditiveExpr();
if (ret == null)
return ret;
TotemOperator op;
if (IsRelationalToken(PeekToken(), out op))
{
Token t = NextToken();
var start = ret.StartIndex;
ret = new BinaryExpr(op, ret, ParseRelationalExpr());
ret.SetLoc(_globalParent, start, GetEnd());
}
return ret;
}
private Expr ParseLogicalAndExpr()
{
Expr ret = ParseEqualityExpr();
if (ret == null)
return ret;
while (MaybeEat(TokenType.LogicalAnd))
{
var start = ret.StartIndex;
ret = new BinaryExpr(TotemOperator.LogicalAnd, ret, ParseEqualityExpr());
ret.SetLoc(_globalParent, start, GetEnd());
}
return ret;
}
// BinaryExpr
public override bool Walk(BinaryExpr node)
{
node.Parent = _currentScope;
return base.Walk(node);
}