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diff dmd/IfStatement.d @ 154:14feb7ae01a6

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* changed the build system to build a release version if the debug one compiles and enabled warnings + reduced warnings by adding appriopriate overrides + IfStatement.interpret() + ScopeStatement.interpret() + TypeSArray.constConv() + TypedefDeclaration.syntaxCopy() * fixed a bug in StringExp
author trass3r
date Wed, 15 Sep 2010 15:32:31 +0200
parents 60bb0fe4563e
children af724d3510d7
line wrap: on
line diff
--- a/dmd/IfStatement.d	Wed Sep 15 03:58:55 2010 +0200
+++ b/dmd/IfStatement.d	Wed Sep 15 15:32:31 2010 +0200
@@ -9,6 +9,7 @@
 import dmd.Scope;
 import dmd.InterState;
 import dmd.OutBuffer;
+import dmd.GlobalExpressions;
 import dmd.HdrGenState;
 import dmd.InlineCostState;
 import dmd.InlineDoState;
@@ -122,7 +123,36 @@
 	
     override Expression interpret(InterState istate)
 	{
-		assert(false);
+version(LOG)
+		writef("IfStatement::interpret(%s)\n", condition.toChars());
+
+		if (istate.start is this)
+			istate.start = null;
+		if (istate.start)
+		{
+			Expression e = null;
+			if (ifbody)
+				e = ifbody.interpret(istate);
+			if (istate.start && elsebody)
+				e = elsebody.interpret(istate);
+			return e;
+		}
+
+		Expression e = condition.interpret(istate);
+		assert(e);
+		//if (e is EXP_CANT_INTERPRET) writef("cannot interpret\n");
+		if (e !is EXP_CANT_INTERPRET)
+		{
+			if (e.isBool(true))
+				e = ifbody ? ifbody.interpret(istate) : null;
+			else if (e.isBool(false))
+				e = elsebody ? elsebody.interpret(istate) : null;
+			else
+			{
+				e = EXP_CANT_INTERPRET;
+			}
+		}
+		return e;
 	}
 	
     override void toCBuffer(OutBuffer buf, HdrGenState* hgs)