Mercurial > projects > ddmd
view dmd/WhileStatement.d @ 187:b0d41ff5e0df
Added expandability scheme outlined in http://www.dsource.org/forums/viewtopic.php?t=5659&sid=6f2150ff5b0bffcd47512a6a7608d218
author | Abscissa |
---|---|
date | Tue, 07 Jun 2011 23:37:34 -0400 |
parents | e3afd1303184 |
children |
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module dmd.WhileStatement; import dmd.common; import dmd.Statement; import dmd.Expression; import dmd.Scope; import dmd.InterState; import dmd.HdrGenState; import dmd.OutBuffer; import dmd.InlineScanState; import dmd.IRState; import dmd.Loc; import dmd.BE; import dmd.ForStatement; import dmd.DDMDExtensions; class WhileStatement : Statement { mixin insertMemberExtension!(typeof(this)); Expression condition; Statement body_; this(Loc loc, Expression c, Statement b) { register(); super(loc); condition = c; body_ = b; } override Statement syntaxCopy() { WhileStatement s = new WhileStatement(loc, condition.syntaxCopy(), body_ ? body_.syntaxCopy() : null); return s; } override Statement semantic(Scope sc) { /* Rewrite as a for(;condition;) loop */ Statement s = new ForStatement(loc, null, condition, null, body_); s = s.semantic(sc); return s; } override bool hasBreak() { return true; } override bool hasContinue() { return true; } override bool usesEH() { assert(false); } override BE blockExit() { assert(false); } override bool comeFrom() { assert(false); } override Expression interpret(InterState istate) { version(LOG) { printf("WhileStatement::interpret()\n"); } assert(false); // rewritten to ForStatement return null; } override void toCBuffer(OutBuffer buf, HdrGenState* hgs) { assert(false); } override Statement inlineScan(InlineScanState* iss) { assert(false); } override void toIR(IRState* irs) { assert(false); } }