# HG changeset patch
# User korDen
# Date 1285841390 -14400
# Node ID 96c0fff6897d138e4128aef9050ece8a8320dc67
# Parent  e7769d53e750a93e0fc28d6ef5d4c82a539c4e89
more global state cleanup

diff -r e7769d53e750 -r 96c0fff6897d dmd/Global.d
--- a/dmd/Global.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/Global.d	Thu Sep 30 14:09:50 2010 +0400
@@ -8,7 +8,12 @@
 import dmd.StringTable;
 import dmd.OutBuffer;
 import dmd.Token;
+import dmd.Scope;
 import dmd.Module;
+import dmd.Id;
+
+import dmd.codegen.Util;
+import dmd.backend.Classsym;
 
 import core.stdc.time;
 import core.stdc.stdio;
@@ -81,8 +86,18 @@
     Array amodules;		// array of all modules
     Array deferred;	// deferred Dsymbol's needing semantic() run on them
     uint dprogress;	// progress resolving the deferred list
+	int nested;
+	Classsym* scc;
+	ClassDeclaration moduleinfo;
 	
-	ClassDeclaration moduleinfo;
+	// Used in PowExp
+	bool importMathChecked = false;
+	
+	// Used in Scope
+	Scope scope_freelist;
+	
+	// Used in TemplateMixin
+	int nest;
 	
 	this()
 	{
@@ -98,6 +113,11 @@
 		init_time();
 	}
 	
+	void initClasssym()
+	{
+		scc = fake_classsym(Id.ClassInfo);
+	}
+	
 	void init_time()
 	{
 		time_t tm;
diff -r e7769d53e750 -r 96c0fff6897d dmd/Id.d
--- a/dmd/Id.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/Id.d	Thu Sep 30 14:09:50 2010 +0400
@@ -9,7 +9,7 @@
 	string res = "struct Id\n{\n";
 
 	foreach(entry; ts)
-		res ~= "\tstatic Identifier " ~ entry.ident ~ ";\n";
+		res ~= "\tstatic __gshared Identifier " ~ entry.ident ~ ";\n";
 	
 	res ~= "\tstatic void initialize()\n\t{\n";
 	string tmp;
diff -r e7769d53e750 -r 96c0fff6897d dmd/Module.d
--- a/dmd/Module.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/Module.d	Thu Sep 30 14:09:50 2010 +0400
@@ -1061,7 +1061,7 @@
 			t.Tnext = tsvoid;
 			tsvoid.Tcount++;
 
-			static string moddeco = "FZv";
+			enum moddeco = "FZv";
 
 			if (eictor)
 			{
@@ -1287,14 +1287,13 @@
 
     void runDeferredSemantic()
 	{
+		if (global.nested)
+			return;
+		//if (deferred.dim) printf("+Module.runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim);
+		global.nested++;
+		
 		size_t len;
 
-		static int nested;
-		if (nested)
-		return;
-		//if (deferred.dim) printf("+Module.runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim);
-		nested++;
-
 		auto deferred = global.deferred;
 		
 		do
@@ -1330,7 +1329,7 @@
 			}
 			//printf("\tdeferred.dim = %d, len = %d, dprogress = %d\n", deferred.dim, len, dprogress);
 		} while (deferred.dim < len || global.dprogress);	// while making progress
-		nested--;
+		global.nested--;
 		//printf("-Module.runDeferredSemantic('%s'), len = %d\n", toChars(), deferred.dim);
 	}
 
@@ -1499,13 +1498,8 @@
 		if (!csym)
 		{
 			Symbol* s;
-			static Classsym* scc;
 
-			if (!scc) {
-				scc = fake_classsym(Id.ClassInfo);
-			}
-
-			s = toSymbolX("__ModuleInfo", SC.SCextern, scc.Stype, "Z");
+			s = toSymbolX("__ModuleInfo", SC.SCextern, global.scc.Stype, "Z");
 			s.Sfl = FL.FLextern;
 			s.Sflags |= SFL.SFLnodebug;
 			csym = s;
diff -r e7769d53e750 -r 96c0fff6897d dmd/PowExp.d
--- a/dmd/PowExp.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/PowExp.d	Thu Sep 30 14:09:50 2010 +0400
@@ -109,10 +109,9 @@
 	            return e;
 	        }
 
-	        static int importMathChecked = 0;
-	        if (!importMathChecked)
+	        if (!global.importMathChecked)
 	        {
-	            importMathChecked = 1;
+	            global.importMathChecked = true;
 				auto amodules = global.amodules;
 	            for (int i = 0; i < amodules.dim; i++)
 	            {
diff -r e7769d53e750 -r 96c0fff6897d dmd/RealExp.d
--- a/dmd/RealExp.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/RealExp.d	Thu Sep 30 14:09:50 2010 +0400
@@ -192,7 +192,7 @@
 		return el_const(ty, &c);
 	}
 	
-	static private char[6] zeropad;
+	private enum char[6] zeropad = [0];
 
 	override dt_t** toDt(dt_t** pdt)
 	{
diff -r e7769d53e750 -r 96c0fff6897d dmd/Scope.d
--- a/dmd/Scope.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/Scope.d	Thu Sep 30 14:09:50 2010 +0400
@@ -88,7 +88,6 @@
     uint lastoffset;	// offset in docbuf of where to insert next dec
     OutBuffer docbuf;		// buffer for documentation output
 
-    static Scope freelist;
 ///    static void *operator new(size_t sz);
     static Scope createGlobal(Module module_)
 	{
@@ -201,8 +200,8 @@
 
 		if (!nofree)
 		{
-			enclosing = freelist;
-			freelist = this;
+			enclosing = global.scope_freelist;
+			global.scope_freelist = this;
 			flags |= SCOPE.SCOPEfree;
 		}
 
diff -r e7769d53e750 -r 96c0fff6897d dmd/StorageClassDeclaration.d
--- a/dmd/StorageClassDeclaration.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/StorageClassDeclaration.d	Thu Sep 30 14:09:50 2010 +0400
@@ -96,7 +96,7 @@
 			TOK tok;
 		};
 
-		static SCstring[] table =
+		enum SCstring[] table =
 		[
 			{ STCauto,         TOKauto },
 			{ STCscope,        TOKscope },
diff -r e7769d53e750 -r 96c0fff6897d dmd/TemplateAliasParameter.d
--- a/dmd/TemplateAliasParameter.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/TemplateAliasParameter.d	Thu Sep 30 14:09:50 2010 +0400
@@ -47,6 +47,13 @@
 	return o;
 }
 
+__gshared Dsymbol sdummy;
+
+shared static this()
+{
+	sdummy = new Dsymbol();
+}
+
 class TemplateAliasParameter : TemplateParameter
 {
 	/* Syntax:
@@ -57,8 +64,6 @@
 	Object specAlias;
 	Object defaultAlias;
 
-	static Dsymbol sdummy;
-
 	this(Loc loc, Identifier ident, Type specType, Object specAlias, Object defaultAlias)
 	{
 		super(loc, ident);
@@ -215,7 +220,7 @@
 					}	
 			if (specAlias)
 			{
-				if (sa == sdummy)
+				if (sa is sdummy)
 					goto Lnomatch;
 				if (sa != specAlias)
 					goto Lnomatch;
@@ -253,15 +258,10 @@
 
 	override Object dummyArg()
 	{
-		Object s;
-
-		s = specAlias;
-		if (!s)
+		if (!specAlias)
 		{
-			if (!sdummy)
-				sdummy = new Dsymbol();
-			s = sdummy;
+			return sdummy;
 		}
-		return s;
+		return specAlias;
 	}
 }
diff -r e7769d53e750 -r 96c0fff6897d dmd/TemplateInstance.d
--- a/dmd/TemplateInstance.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/TemplateInstance.d	Thu Sep 30 14:09:50 2010 +0400
@@ -859,7 +859,7 @@
 	    OutBuffer buf = new OutBuffer();
 	    string id;
 
-	static if (0) {
+	static if (false) {
 	    printf("TemplateInstance.mangle() %s", toChars());
 	    if (parent)
 		printf("  parent = %s %s", parent.kind(), parent.toChars());
diff -r e7769d53e750 -r 96c0fff6897d dmd/TemplateMixin.d
--- a/dmd/TemplateMixin.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/TemplateMixin.d	Thu Sep 30 14:09:50 2010 +0400
@@ -299,10 +299,8 @@
 		sc2 = argscope.push(this);
 		sc2.offset = sc.offset;
 
-
-		static int nest;
-		//printf("%d\n", nest);
-		if (++nest > 500)
+		//printf("%d\n", global.nest);
+		if (++global.nest > 500)
 		{
 			global.gag = 0;			// ensure error message gets printed
 			error("recursive expansion");
@@ -312,7 +310,7 @@
 		foreach(Dsymbol s; members)
 			s.semantic(sc2);
 
-		nest--;
+		global.nest--;
 
 		sc.offset = sc2.offset;
 
diff -r e7769d53e750 -r 96c0fff6897d dmd/TemplateValueParameter.d
--- a/dmd/TemplateValueParameter.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/TemplateValueParameter.d	Thu Sep 30 14:09:50 2010 +0400
@@ -24,6 +24,12 @@
 
 import dmd.Dsymbol : isExpression;
 
+static __gshared Expression edummy;
+shared static this()
+{
+	edummy = new Expression(Loc(0), TOK.init, 0);
+}
+
 class TemplateValueParameter : TemplateParameter
 {
     /* Syntax:
@@ -34,8 +40,6 @@
     Expression specValue;
     Expression defaultValue;
 
-    static Expression edummy;
-
     this(Loc loc, Identifier ident, Type valType, Expression specValue, Expression defaultValue)
 	{
 		super(loc, ident);
@@ -205,7 +209,7 @@
 
 		if (specValue)
 		{
-			if (!ei || ei == edummy)
+			if (!ei || ei is edummy)
 				goto Lnomatch;
 
 			Expression e = specValue;
@@ -259,16 +263,11 @@
 
     override Object dummyArg()
 	{
-		Expression e;
-
-		e = specValue;
-		if (!e)
+		if (!specValue)
 		{
-			// Create a dummy value
-			if (!edummy)
-				edummy = valType.defaultInit(Loc(0));
-			e = edummy;
+			return edummy;
 		}
-		return e;
+		
+		return specValue;
 	}
 }
diff -r e7769d53e750 -r 96c0fff6897d dmd/Type.d
--- a/dmd/Type.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/dmd/Type.d	Thu Sep 30 14:09:50 2010 +0400
@@ -2220,10 +2220,12 @@
 		return salign;
 	}
 	
-    ///Expression defaultInit(Loc loc = Loc(0))
     Expression defaultInit(Loc loc)
 	{
-		assert(false);
+		version (LOGDEFAULTINIT) {
+			printf("Type.defaultInit() '%.*s'\n", toChars());
+		}
+		return null;
 	}
 	
     /***************************************
diff -r e7769d53e750 -r 96c0fff6897d main.d
--- a/main.d	Thu Sep 30 13:29:54 2010 +0400
+++ b/main.d	Thu Sep 30 14:09:50 2010 +0400
@@ -776,6 +776,7 @@
     Type.init();
     Id.initialize();
     initPrecedence();
+	global.initClasssym();
 
     backend_init();