--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd2/cond.h	Tue Nov 11 01:38:48 2008 +0100
@@ -0,0 +1,106 @@
+
+// Compiler implementation of the D programming language
+// Copyright (c) 1999-2008 by Digital Mars
+// All Rights Reserved
+// written by Walter Bright
+// http://www.digitalmars.com
+// License for redistribution is by either the Artistic License
+// in artistic.txt, or the GNU General Public License in gnu.txt.
+// See the included readme.txt for details.
+
+#ifndef DMD_DEBCOND_H
+#define DMD_DEBCOND_H
+
+struct Expression;
+struct Identifier;
+struct OutBuffer;
+struct Module;
+struct Scope;
+struct ScopeDsymbol;
+#ifdef _DH
+#include "lexer.h" // dmdhg
+#endif
+enum TOK;
+#ifdef _DH
+struct HdrGenState;
+#endif
+
+int findCondition(Array *ids, Identifier *ident);
+
+struct Condition
+{
+    Loc loc;
+    int inc;		// 0: not computed yet
+			// 1: include
+			// 2: do not include
+
+    Condition(Loc loc);
+
+    virtual Condition *syntaxCopy() = 0;
+    virtual int include(Scope *sc, ScopeDsymbol *s) = 0;
+    virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs) = 0;
+};
+
+struct DVCondition : Condition
+{
+    unsigned level;
+    Identifier *ident;
+    Module *mod;
+
+    DVCondition(Module *mod, unsigned level, Identifier *ident);
+
+    Condition *syntaxCopy();
+};
+
+struct DebugCondition : DVCondition
+{
+    static void setGlobalLevel(unsigned level);
+    static void addGlobalIdent(const char *ident);
+    static void addPredefinedGlobalIdent(const char *ident);
+
+    DebugCondition(Module *mod, unsigned level, Identifier *ident);
+
+    int include(Scope *sc, ScopeDsymbol *s);
+    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+};
+
+struct VersionCondition : DVCondition
+{
+    static void setGlobalLevel(unsigned level);
+    static void checkPredefined(Loc loc, const char *ident);
+    static void addGlobalIdent(const char *ident);
+    static void addPredefinedGlobalIdent(const char *ident);
+
+    VersionCondition(Module *mod, unsigned level, Identifier *ident);
+
+    int include(Scope *sc, ScopeDsymbol *s);
+    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+};
+
+struct StaticIfCondition : Condition
+{
+    Expression *exp;
+
+    StaticIfCondition(Loc loc, Expression *exp);
+    Condition *syntaxCopy();
+    int include(Scope *sc, ScopeDsymbol *s);
+    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+};
+
+struct IftypeCondition : Condition
+{
+    /* iftype (targ id tok tspec)
+     */
+    Type *targ;
+    Identifier *id;	// can be NULL
+    enum TOK tok;	// ':' or '=='
+    Type *tspec;	// can be NULL
+
+    IftypeCondition(Loc loc, Type *targ, Identifier *id, enum TOK tok, Type *tspec);
+    Condition *syntaxCopy();
+    int include(Scope *sc, ScopeDsymbol *s);
+    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+};
+
+
+#endif