implement visitor for dsymbol and type (need for #2074)

src/aggregate.h

@@ -129,6 +129,7 @@ class AggregateDeclaration : public ScopeDsymbol
     Symbol *toInitializer();
 
     AggregateDeclaration *isAggregateDeclaration() { return this; }
+    void acceptVisitor(Visitor *v);
 };
 
 class StructDeclaration : public AggregateDeclaration
@@ -185,6 +186,7 @@ class StructDeclaration : public AggregateDeclaration
     void toDebug();                     // to symbolic debug info
 
     StructDeclaration *isStructDeclaration() { return this; }
+    void acceptVisitor(Visitor *v);
 };
 
 class UnionDeclaration : public StructDeclaration
@@ -195,6 +197,7 @@ class UnionDeclaration : public StructDeclaration
     const char *kind();
 
     UnionDeclaration *isUnionDeclaration() { return this; }
+    void acceptVisitor(Visitor *v);
 };
 
 struct BaseClass
@@ -312,6 +315,7 @@ class ClassDeclaration : public AggregateDeclaration
     Symbol *vtblsym;
 
     ClassDeclaration *isClassDeclaration() { return (ClassDeclaration *)this; }
+    void acceptVisitor(Visitor *v);
 };
 
 class InterfaceDeclaration : public ClassDeclaration
@@ -334,6 +338,7 @@ class InterfaceDeclaration : public ClassDeclaration
     Symbol *toSymbol();
 
     InterfaceDeclaration *isInterfaceDeclaration() { return this; }
+    void acceptVisitor(Visitor *v);
 };
 
 #endif /* DMD_AGGREGATE_H */

src/attrib.c

@@ -29,7 +29,7 @@
 #include "template.h"
 #include "hdrgen.h"
 #include "utf.h"
-
+#include "visitor.h"
 
 /********************************* AttribDeclaration ****************************/
 
@@ -1755,4 +1755,64 @@ const char *UserAttributeDeclaration::kind()
     return "UserAttribute";
 }
 
+void AttribDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void StorageClassDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void DeprecatedDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void LinkDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void ProtDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void AlignDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void AnonDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void PragmaDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void ConditionalDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void StaticIfDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void CompileDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
+void UserAttributeDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}
+
 

src/attrib.h

@@ -60,6 +60,7 @@ class AttribDeclaration : public Dsymbol
     AttribDeclaration *isAttribDeclaration() { return this; }
 
     void toObjFile(int multiobj);                       // compile to .obj file
+    void acceptVisitor(Visitor *v);
 };
 
 class StorageClassDeclaration : public AttribDeclaration
@@ -76,6 +77,7 @@ class StorageClassDeclaration : public AttribDeclaration
 
     static const char *stcToChars(char tmp[], StorageClass& stc);
     static void stcToCBuffer(OutBuffer *buf, StorageClass stc);
+    void acceptVisitor(Visitor *v);
 };
 
 class DeprecatedDeclaration : public StorageClassDeclaration
@@ -87,6 +89,7 @@ class DeprecatedDeclaration : public StorageClassDeclaration
     Dsymbol *syntaxCopy(Dsymbol *s);
     void setScope(Scope *sc);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+    void acceptVisitor(Visitor *v);
 };
 
 class LinkDeclaration : public AttribDeclaration
@@ -101,6 +104,7 @@ class LinkDeclaration : public AttribDeclaration
     void semantic3(Scope *sc);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
     char *toChars();
+    void acceptVisitor(Visitor *v);
 };
 
 class ProtDeclaration : public AttribDeclaration
@@ -116,6 +120,7 @@ class ProtDeclaration : public AttribDeclaration
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
 
     static void protectionToCBuffer(OutBuffer *buf, PROT protection);
+    void acceptVisitor(Visitor *v);
 };
 
 class AlignDeclaration : public AttribDeclaration
@@ -128,6 +133,7 @@ class AlignDeclaration : public AttribDeclaration
     void setScope(Scope *sc);
     void semantic(Scope *sc);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
+    void acceptVisitor(Visitor *v);
 };
 
 class AnonDeclaration : public AttribDeclaration
@@ -143,6 +149,7 @@ class AnonDeclaration : public AttribDeclaration
     void setFieldOffset(AggregateDeclaration *ad, unsigned *poffset, bool isunion);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
     const char *kind();
+    void acceptVisitor(Visitor *v);
 };
 
 class PragmaDeclaration : public AttribDeclaration
@@ -158,6 +165,7 @@ class PragmaDeclaration : public AttribDeclaration
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
     const char *kind();
     void toObjFile(int multiobj);                       // compile to .obj file
+    void acceptVisitor(Visitor *v);
 };
 
 class ConditionalDeclaration : public AttribDeclaration
@@ -176,6 +184,7 @@ class ConditionalDeclaration : public AttribDeclaration
     void toJson(JsonOut *json);
     void importAll(Scope *sc);
     void setScope(Scope *sc);
+    void acceptVisitor(Visitor *v);
 };
 
 class StaticIfDeclaration : public ConditionalDeclaration
@@ -192,6 +201,7 @@ class StaticIfDeclaration : public ConditionalDeclaration
     void importAll(Scope *sc);
     void setScope(Scope *sc);
     const char *kind();
+    void acceptVisitor(Visitor *v);
 };
 
 // Mixin declarations
@@ -211,6 +221,7 @@ class CompileDeclaration : public AttribDeclaration
     void semantic(Scope *sc);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
     const char *kind();
+    void acceptVisitor(Visitor *v);
 };
 
 /**
@@ -229,6 +240,7 @@ class UserAttributeDeclaration : public AttribDeclaration
     static Expressions *concat(Expressions *udas1, Expressions *udas2);
     void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
     const char *kind();
+    void acceptVisitor(Visitor *v);
 };
 
 #endif /* DMD_ATTRIB_H */

src/class.c

@@ -29,6 +29,7 @@
 #include "expression.h"
 #include "statement.h"
 #include "template.h"
+#include "visitor.h"
 
 /********************************* ClassDeclaration ****************************/
 
@@ -1732,3 +1733,13 @@ void BaseClass::copyBaseInterfaces(BaseClasses *vtblInterfaces)
     }
     //printf("-copyBaseInterfaces\n");
 }
+
+void ClassDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+} 
+
+void InterfaceDeclaration::acceptVisitor(Visitor *v)
+{
+    v->visit(this);
+}