DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Implementation

Mercurial (b6057e17f856)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsXBLProtoImplMethod_h__
#define nsXBLProtoImplMethod_h__

#include "mozilla/Attributes.h"
#include "nsIAtom.h"
#include "nsString.h"
#include "nsString.h"
#include "nsXBLMaybeCompiled.h"
#include "nsXBLProtoImplMember.h"
#include "nsXBLSerialize.h"

class nsIContent;

struct nsXBLParameter {
  nsXBLParameter* mNext;
  char* mName;

  nsXBLParameter(const nsAString& aName) {
    MOZ_COUNT_CTOR(nsXBLParameter);
    mName = ToNewCString(aName);
    mNext = nullptr;
  }

  ~nsXBLParameter() {
    MOZ_COUNT_DTOR(nsXBLParameter);
    nsMemory::Free(mName);
    NS_CONTENT_DELETE_LIST_MEMBER(nsXBLParameter, this, mNext);
  }
};

struct nsXBLUncompiledMethod {
  nsXBLParameter* mParameters;
  nsXBLParameter* mLastParameter;
  nsXBLTextWithLineNumber mBodyText;

  nsXBLUncompiledMethod() :
    mParameters(nullptr),
    mLastParameter(nullptr),
    mBodyText()
  {
    MOZ_COUNT_CTOR(nsXBLUncompiledMethod);
  }

  ~nsXBLUncompiledMethod() {
    MOZ_COUNT_DTOR(nsXBLUncompiledMethod);
    delete mParameters;
  }

  int32_t GetParameterCount() {
    int32_t result = 0;
    for (nsXBLParameter* curr = mParameters; curr; curr=curr->mNext)
      result++;
    return result;
  }

  void AppendBodyText(const nsAString& aText) {
    mBodyText.AppendText(aText);
  }

  void AddParameter(const nsAString& aText) {
    nsXBLParameter* param = new nsXBLParameter(aText);
    if (!param)
      return;
    if (!mParameters)
      mParameters = param;
    else
      mLastParameter->mNext = param;
    mLastParameter = param;
  }

  void SetLineNumber(uint32_t aLineNumber) {
    mBodyText.SetLineNumber(aLineNumber);
  }
};

class nsXBLProtoImplMethod: public nsXBLProtoImplMember
{
public:
  nsXBLProtoImplMethod(const char16_t* aName);
  virtual ~nsXBLProtoImplMethod();

  void AppendBodyText(const nsAString& aBody);
  void AddParameter(const nsAString& aName);

  void SetLineNumber(uint32_t aLineNumber);
  
  virtual nsresult InstallMember(JSContext* aCx,
                                 JS::Handle<JSObject*> aTargetClassObject) MOZ_OVERRIDE;
  virtual nsresult CompileMember(const nsCString& aClassStr,
                                 JS::Handle<JSObject*> aClassObject) MOZ_OVERRIDE;

  virtual void Trace(const TraceCallbacks& aCallbacks, void *aClosure) MOZ_OVERRIDE;

  nsresult Read(nsIObjectInputStream* aStream);
  virtual nsresult Write(nsIObjectOutputStream* aStream) MOZ_OVERRIDE;

  bool IsCompiled() const
  {
    return mMethod.IsCompiled();
  }

  void SetUncompiledMethod(nsXBLUncompiledMethod* aUncompiledMethod)
  {
    mMethod.SetUncompiled(aUncompiledMethod);
  }

  nsXBLUncompiledMethod* GetUncompiledMethod() const
  {
    return mMethod.GetUncompiled();
  }

protected:
  void SetCompiledMethod(JSObject* aCompiledMethod)
  {
    mMethod.SetJSFunction(aCompiledMethod);
  }

  JSObject* GetCompiledMethod() const
  {
    return mMethod.GetJSFunction();
  }

  JSObject* GetCompiledMethodPreserveColor() const
  {
    return mMethod.GetJSFunctionPreserveColor();
  }

  JS::Heap<nsXBLMaybeCompiled<nsXBLUncompiledMethod> > mMethod;
};

class nsXBLProtoImplAnonymousMethod : public nsXBLProtoImplMethod {
public:
  nsXBLProtoImplAnonymousMethod(const char16_t* aName) :
    nsXBLProtoImplMethod(aName)
  {}
  
  nsresult Execute(nsIContent* aBoundElement);

  // Override InstallMember; these methods never get installed as members on
  // binding instantiations (though they may hang out in mMembers on the
  // prototype implementation).
  virtual nsresult InstallMember(JSContext* aCx,
                                 JS::Handle<JSObject*> aTargetClassObject) MOZ_OVERRIDE {
    return NS_OK;
  }

  using nsXBLProtoImplMethod::Write;
  nsresult Write(nsIObjectOutputStream* aStream,
                 XBLBindingSerializeDetails aType);
};

#endif // nsXBLProtoImplMethod_h__