From f82c2029963a67ee6586ab03c7f5ef3f2a728c0b Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Thu, 9 Aug 2007 22:31:59 +0000
Subject: 	* src/qpid/framing/MethodHolder.h, .cpp: 	  Replace
 boost::variant with Blob. 	* rubygen/templates/MethodHolder.rb: 	 
 Generate support files for Blob-based MethodHolder. 	* src/Makefile.am:
 generate MethodHolder suppport files. 	* rubygen/cppgen.rb: Minor
 fixes/enhancements.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@564409 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/framing/MethodHolder.cpp | 59 +++++++----------------------------
 1 file changed, 11 insertions(+), 48 deletions(-)

(limited to 'cpp/src/qpid/framing/MethodHolder.cpp')

diff --git a/cpp/src/qpid/framing/MethodHolder.cpp b/cpp/src/qpid/framing/MethodHolder.cpp
index 27046af43c..cc0800a1e8 100644
--- a/cpp/src/qpid/framing/MethodHolder.cpp
+++ b/cpp/src/qpid/framing/MethodHolder.cpp
@@ -20,74 +20,37 @@
  */
 
 #include "MethodHolder.h"
-#include "amqp_types.h"
+#include "qpid/framing/AMQMethodBody.h"
 #include "qpid/framing/Buffer.h"
 #include "qpid/framing/variant.h"
 
+// Note: MethodHolder::construct is in a separate generated file
+// MethodHolder_construct.cpp
+
 using namespace boost;
 
 namespace qpid {
 namespace framing {
 
-struct SetVariantVisitor : public NoBlankVisitor<> {
-    QPID_USING_NOBLANK();
-    MethodId id;
-    SetVariantVisitor(MethodId m) : id(m) {}
-    template <class T> void operator()(T& t) const { setVariant(t, id); }
-};
-
-inline void setVariant(MethodVariant& var, ClassId c, MethodId m) {
-    setVariant(var,c);
-    boost::apply_visitor(SetVariantVisitor(m), var);
-}
-
-void MethodHolder::setMethod(ClassId c, MethodId m) {
-    setVariant(method, c, m);
-}
-
-MethodHolder::MethodHolder(ClassId c, MethodId m) {
-    setMethod(c,m);
-}
-
-struct GetClassId : public NoBlankVisitor<ClassId> {
-    QPID_USING_NOBLANK(ClassId);
-    template <class T> ClassId operator()(const T&) const {
-        return T::CLASS_ID;
-    }
-};
-
-struct GetMethodId : public NoBlankVisitor<MethodId> {
-    QPID_USING_NOBLANK(ClassId);
-    template <class T> MethodId operator()(const T&) const {
-        return T::METHOD_ID;
-    }
-};
-
 void MethodHolder::encode(Buffer& b) const {
-    const AMQMethodBody* body = getMethod();
+    const AMQMethodBody* body = get();
     b.putShort(body->amqpClassId());
     b.putShort(body->amqpMethodId());
     body->encodeContent(b);
 }
 
 void MethodHolder::decode(Buffer& b) {
-    ClassId classId = b.getShort();
-    ClassId methodId = b.getShort();
-    setVariant(method, classId, methodId);
-    getMethod()->decodeContent(b);
+    construct(std::make_pair(b.getShort(), b.getShort()));
+    get()->decodeContent(b);
 }
 
 uint32_t  MethodHolder::size() const {
-    return sizeof(ClassId)+sizeof(MethodId)+getMethod()->size();
-}
-
-
-AMQMethodBody* MethodHolder::getMethod() {
-    return applyApplyVisitor(AddressVisitor<AMQMethodBody*>(), method);
+    return sizeof(Id)+get()->size();
 }
 
-const AMQMethodBody* MethodHolder::getMethod() const {
-    return const_cast<MethodHolder*>(this)->getMethod();
+std::ostream& operator<<(std::ostream& out, const MethodHolder& h) {
+    h.get()->print(out);
+    return out;
 }
 
 }} // namespace qpid::framing
-- 
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