Mercurial > projects > dang
view sema/Declarations.d @ 28:69464d465284 new_gen
Now supporting structs - both read and write. Still a few errors though, so watch out.
author | Anders Johnsen <skabet@gmail.com> |
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date | Sun, 20 Apr 2008 11:20:28 +0200 |
parents | 2d28b21faad6 |
children | 41d23f2762c3 |
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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; override void visitIdentifier(Identifier i) { auto symbol = i.env.find(i); if(symbol is null) throw new Error("Undefined identifier: '"~i.get~"'",i.token.location); } override void visitVarDecl(VarDecl d) { if(!d.env.findType(d.type)) throw new Error("Undefined type: '"~d.type.get~"'",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 visitMemberLookup(MemberLookup 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) == null) throw new Error("Undefined member in "~target.get~" with type "~st.name,st.getLoc); } } bool isType(char[] s) { return (s in types? true : false); } }