private void CompileVarRef(AstVarRef node, Syt syt, StringBuilder sb)
{
var syte = syt.Lookup(node.StName);
if (syte.Ksyte.FIn(Ksyte.Field, Ksyte.Arg, Ksyte.Var, Ksyte.Static))
sb.AppendLine("push {0} {1}".StFormat(StSegment(syte.Ksyte), syte.Isyte));
else
throw new Erparse(node, "not an rvalue");
}
private AstExpr ParseRef()
{
AstExpr varRef = new AstVarRef {StName = Expect(Ktoken.Id).St};
if (Accept(Ktoken.Lbracket))
{
var astIndex = new AstIndex { exprLeft = varRef, exprRight = ParseExpr() };
Expect(Ktoken.Rbracket);
return astIndex;
}
if (Accept(Ktoken.Dot))
{
var varRefRight = new AstVarRef { StName = Expect(Ktoken.Id).St };
varRef = new AstDot { varLeft = (AstVarRef)varRef, varRight = varRefRight };
}
if (FCurrent(Ktoken.Lparen))
return new AstCall { exprFunc = varRef, rgexprParam = ParseArgumentList().ToArray() };
return varRef;
}
