Mercurial > projects > ddmd
view dmd/StaticDtorDeclaration.d @ 188:83a36bdd5d14
Missed one in last commit.
author | Abscissa |
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date | Tue, 07 Jun 2011 23:51:08 -0400 |
parents | b0d41ff5e0df |
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module dmd.StaticDtorDeclaration; import dmd.common; import dmd.FuncDeclaration; import dmd.VarDeclaration; import dmd.Dsymbol; import dmd.Loc; import dmd.Scope; import dmd.AggregateDeclaration; import dmd.OutBuffer; import dmd.HdrGenState; import dmd.STC; import dmd.Identifier; import dmd.ClassDeclaration; import dmd.Type; import dmd.TypeFunction; import dmd.LINK; import dmd.Lexer; import dmd.Statement; import dmd.Expression; import dmd.EqualExp; import dmd.ArrayTypes; import dmd.DeclarationStatement; import dmd.IdentifierExp; import dmd.AddAssignExp; import dmd.IntegerExp; import dmd.TOK; import dmd.IfStatement; import dmd.ReturnStatement; import dmd.CompoundStatement; import dmd.Module; import dmd.DDMDExtensions; class StaticDtorDeclaration : FuncDeclaration { mixin insertMemberExtension!(typeof(this)); VarDeclaration vgate; // 'gate' variable this(Loc loc, Loc endloc, string name = "_staticDtor") { register(); super(loc, endloc, Identifier.generateId(name), STCstatic, null); vgate = null; } override Dsymbol syntaxCopy(Dsymbol s) { assert(!s); StaticDtorDeclaration sdd = new StaticDtorDeclaration(loc, endloc); return super.syntaxCopy(sdd); } override void semantic(Scope sc) { ClassDeclaration cd = sc.scopesym.isClassDeclaration(); if (!type) type = new TypeFunction(null, Type.tvoid, false, LINK.LINKd); /* If the static ctor appears within a template instantiation, * it could get called multiple times by the module constructors * for different modules. Thus, protect it with a gate. */ if (inTemplateInstance() && semanticRun < PASSsemantic) { /* Add this prefix to the function: * static int gate; * if (--gate != 0) return; * Increment gate during constructor execution. * Note that this is not thread safe; should not have threads * during static destruction. */ Identifier id = Lexer.idPool("__gate"); VarDeclaration v = new VarDeclaration(Loc(0), Type.tint32, id, null); v.storage_class = isSharedStaticDtorDeclaration() ? STCstatic : STCtls; auto sa = new Statements(); Statement s = new DeclarationStatement(Loc(0), v); sa.push(s); Expression e = new IdentifierExp(Loc(0), id); e = new AddAssignExp(Loc(0), e, new IntegerExp(-1)); e = new EqualExp(TOKnotequal, Loc(0), e, new IntegerExp(0)); s = new IfStatement(Loc(0), null, e, new ReturnStatement(Loc(0), null), null); sa.push(s); if (fbody) sa.push(fbody); fbody = new CompoundStatement(Loc(0), sa); vgate = v; } FuncDeclaration.semantic(sc); // We're going to need ModuleInfo Module m = getModule(); if (!m) m = sc.module_; if (m) { m.needmoduleinfo = 1; // writef("module2 %s needs moduleinfo\n", m.toChars()); version (IN_GCC) { m.strictlyneedmoduleinfo = 1; } } } override AggregateDeclaration isThis() { return null; } override bool isVirtual() { return false; } override bool addPreInvariant() { return false; } override bool addPostInvariant() { return false; } override void emitComment(Scope sc) { } override void toCBuffer(OutBuffer buf, HdrGenState* hgs) { if (hgs.hdrgen) return; buf.writestring("static ~this()"); bodyToCBuffer(buf, hgs); } override void toJsonBuffer(OutBuffer buf) { } override StaticDtorDeclaration isStaticDtorDeclaration() { return this; } }