WebKit/Source/JavaScriptCore/interpreter/CallFrameInlines.h at main · WebKit/WebKit · GitHub

History

169 lines (141 loc) · 5.35 KB

Raw

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

158

159

160

161

162

163

164

165

166

167

168

169

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

* 1. Redistributions of source code must retain the above copyright

* notice, this list of conditions and the following disclaimer.

* 2. Redistributions in binary form must reproduce the above copyright

* notice, this list of conditions and the following disclaimer in the

* documentation and/or other materials provided with the distribution.

* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY

* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#pragma once

#include <JavaScriptCore/CallFrame.h>

#include <JavaScriptCore/HeapCellInlines.h>

#include <JavaScriptCore/JSCalleeInlines.h>

#include <JavaScriptCore/RegisterInlines.h>

WTF_ALLOW_UNSAFE_BUFFER_USAGE_BEGIN

namespace JSC {

inline Register& CallFrame::uncheckedR(VirtualRegister reg)

{

ASSERT(!reg.isConstant());

return this[reg.offset()];

}

ALWAYS_INLINE VM& CallFrame::deprecatedVM() const

{

JSCell* callee = this->callee().asCell();

ASSERT(callee);

return callee->vm();

}

inline JSValue CallFrame::guaranteedJSValueCallee() const

{

ASSERT(!callee().isNativeCallee());

return this[static_cast<int>(CallFrameSlot::callee)].jsValue();

}

inline JSObject* CallFrame::jsCallee() const

{

ASSERT(!callee().isNativeCallee());

return this[static_cast<int>(CallFrameSlot::callee)].object();

}

inline CodeBlock* CallFrame::codeBlock() const

{

ASSERT(!callee().isNativeCallee());

return this[static_cast<int>(CallFrameSlot::codeBlock)].Register::codeBlock();

}

inline SUPPRESS_ASAN CodeBlock* CallFrame::unsafeCodeBlock() const

{

return this[static_cast<int>(CallFrameSlot::codeBlock)].Register::asanUnsafeCodeBlock();

}

inline JSGlobalObject* CallFrame::lexicalGlobalObject(VM& vm) const

{

if (callee().isNativeCallee())

return lexicalGlobalObjectFromNativeCallee(vm);

return jsCallee()->realm();

}

inline bool CallFrame::isZombieFrame() const

{

if (callee().isNativeCallee())

return false;

return jsCallee() == jsCallee()->realm()->zombieFrameCallee();

}

inline bool CallFrame::isNativeCalleeFrame() const

{

return callee().isNativeCallee();

}

inline void CallFrame::setCallee(JSObject* callee)

{

static_cast<Register*>(this)[static_cast<int>(CallFrameSlot::callee)] = callee;

}

inline void CallFrame::setCallee(NativeCallee* callee)

{

reinterpret_cast<uint64_t*>(this)[static_cast<int>(CallFrameSlot::callee)] = CalleeBits::encodeNativeCallee(callee);

}

inline void CallFrame::setCodeBlock(CodeBlock* codeBlock)

{

static_cast<Register*>(this)[static_cast<int>(CallFrameSlot::codeBlock)] = codeBlock;

}

inline void CallFrame::setScope(int scopeRegisterOffset, JSScope* scope)

{

static_cast<Register*>(this)[scopeRegisterOffset] = scope;

}

inline JSScope* CallFrame::scope(int scopeRegisterOffset) const

{

ASSERT(this[scopeRegisterOffset].Register::scope());

return this[scopeRegisterOffset].Register::scope();

}

inline Register* CallFrame::topOfFrame()

{

if (!codeBlock())

return registers();

return topOfFrameInternal();

}

inline void CallFrame::setArgument(size_t argument, JSValue value)

{

this[argumentOffset(argument)] = value;

}

inline JSValue* CallFrame::addressOfArgumentsStart() const { return std::bit_cast<JSValue*>(this + argumentOffset(0)); }

inline JSValue CallFrame::argument(size_t argument) const

{

if (argument >= argumentCount())

return jsUndefined();

return getArgumentUnsafe(argument);

}

inline JSValue CallFrame::uncheckedArgument(size_t argument) const

{

ASSERT(argument < argumentCount());

return getArgumentUnsafe(argument);

}

inline JSValue CallFrame::getArgumentUnsafe(size_t argIndex) const

{

// User beware! This method does not verify that there is a valid

// argument at the specified argIndex. This is used for debugging

// and verification code only. The caller is expected to know what

// he/she is doing when calling this method.

return this[argumentOffset(argIndex)].jsValue();

}

inline JSValue CallFrame::thisValue() const { return this[thisArgumentOffset()].jsValue(); }

inline void CallFrame::setThisValue(JSValue value) { this[thisArgumentOffset()] = value; }

inline JSValue CallFrame::newTarget() const { return thisValue(); }

SUPPRESS_ASAN ALWAYS_INLINE void CallFrame::setCallSiteIndex(CallSiteIndex callSiteIndex)

{

this[static_cast<int>(CallFrameSlot::argumentCountIncludingThis)].highWord() = callSiteIndex.bits();

}

inline std::span<JSValue> CallFrame::argumentsSpan()

{

return { addressOfArgumentsStart(), argumentCount() };

}

} // namespace JSC

WTF_ALLOW_UNSAFE_BUFFER_USAGE_END

WebKit/Source/JavaScriptCore/interpreter/CallFrameInlines.h at main · WebKit/WebKit · GitHub

Uh oh!

Expand file tree

Breadcrumbs

CallFrameInlines.h

Latest commit

History

Breadcrumbs

CallFrameInlines.h

File metadata and controls