static void AssignmentOrCall()
{
int expType;
DesType des;
if (IsCall(out des))
{
Expect(identifier_Sym);
CodeGen.FrameHeader();
Expect(lparen_Sym);
Arguments(des);
Expect(rparen_Sym);
CodeGen.Call(des.entry.entryPoint);
}
else if (la.kind == identifier_Sym)
{
Designator(out des);
if (des.entry.kind != Kinds.Var)
{
SemError("cannot assign to " + Kinds.kindNames[des.entry.kind]);
}
AssignOp();
Expression(out expType);
if (!Assignable(des.type, expType))
{
SemError("incompatible types in assignment");
}
CodeGen.Assign(des.type);
}
else
{
SynErr(48);
}
ExpectWeak(semicolon_Sym, 6);
}
static void Parva()
{
CodeGen.FrameHeader();
// no arguments
CodeGen.Call(mainEntryPoint);
// forward, incomplete
CodeGen.LeaveProgram();
while (la.kind == void_Sym)
{
FuncDeclaration();
}
Expect(EOF_SYM);
if
(!mainEntryPoint.IsDefined())
{
SemError("missing Main function");
}
}