Mercurial > projects > ddmd
view dmd/ConditionalStatement.d @ 122:c77e9f4f1793
Statements -> Vector
author | Eldar Insafutdinov <e.insafutdinov@gmail.com> |
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date | Thu, 02 Sep 2010 23:37:49 +0100 |
parents | e28b18c23469 |
children | e3afd1303184 |
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module dmd.ConditionalStatement; import dmd.common; import dmd.Statement; import dmd.Condition; import dmd.Loc; import dmd.OutBuffer; import dmd.Scope; import dmd.HdrGenState; import dmd.ArrayTypes; import dmd.BE; class ConditionalStatement : Statement { Condition condition; Statement ifbody; Statement elsebody; this(Loc loc, Condition condition, Statement ifbody, Statement elsebody) { super(loc); this.condition = condition; this.ifbody = ifbody; this.elsebody = elsebody; } override Statement syntaxCopy() { Statement e = null; if (elsebody) e = elsebody.syntaxCopy(); ConditionalStatement s = new ConditionalStatement(loc, condition.syntaxCopy(), ifbody.syntaxCopy(), e); return s; } override Statement semantic(Scope sc) { //printf("ConditionalStatement.semantic()\n"); // If we can short-circuit evaluate the if statement, don't do the // semantic analysis of the skipped code. // This feature allows a limited form of conditional compilation. if (condition.include(sc, null)) { ifbody = ifbody.semantic(sc); return ifbody; } else { if (elsebody) elsebody = elsebody.semantic(sc); return elsebody; } } override Statements flatten(Scope sc) { Statement s; if (condition.include(sc, null)) s = ifbody; else s = elsebody; auto a = new Statements(); a.push(s); return a; } override bool usesEH() { assert(false); } override BE blockExit() { assert(false); } override void toCBuffer(OutBuffer buf, HdrGenState* hgs) { assert(false); } }