Mercurial > projects > dang
view sema/Declarations.d @ 55:79cb0afafabe new_gen
Now structs are somewhat useable to use.
author | Anders Johnsen <skabet@gmail.com> |
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date | Sat, 26 Apr 2008 23:11:13 +0200 |
parents | 1a7a308f75b2 |
children | 9f8131676242 |
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module sema.Declarations; import sema.Visitor, sema.DType; import tango.io.Stdout; import misc.Error; class Declarations : Visitor!(void) { int[char[]] types; private Error error(uint line, char[] msg) { return new Error(msg); } override void visitIdentifier(Identifier i) { auto symbol = i.env.find(i); if(symbol is null) throw error(__LINE__, "Undefined identifier: '%0'") .arg(i.get) .loc(i.token.location); } override void visitVarDecl(VarDecl d) { if(!d.env.findType(d.type)) throw error(__LINE__, "Undefined type: '%0'") .arg(d.type.get) .loc(d.type.token.location); visitExp(d.identifier); if (d.init) visitExp(d.init); } override void visitFuncDecl(FuncDecl f) { visitExp(f.identifier); foreach (stmt; f.statements) visitStmt(stmt); } override void visitMemberReference(MemberReference m) { switch(m.target.expType) { case ExpType.Identifier: auto target = cast(Identifier)m.target; auto child = m.child; auto st = cast(DStruct)(target.env.find(target).type); if((child.get in st.members) is null) throw error(__LINE__, "%0 %1 has no member %2") .arg(st.name) .arg(target.get) .arg(child.get) .tok(child.token); break; case ExpType.MemberReference: break; } } bool isType(char[] s) { return (s in types? true : false); } }