diff options
| author | Konstantin Tokarev <annulen@yandex.ru> | 2016-08-25 19:20:41 +0300 |
|---|---|---|
| committer | Konstantin Tokarev <annulen@yandex.ru> | 2017-02-02 12:30:55 +0000 |
| commit | 6882a04fb36642862b11efe514251d32070c3d65 (patch) | |
| tree | b7959826000b061fd5ccc7512035c7478742f7b0 /Source/JavaScriptCore/bytecode/HandlerInfo.h | |
| parent | ab6df191029eeeb0b0f16f127d553265659f739e (diff) | |
Imported QtWebKit TP3 (git b57bc6801f1876c3220d5a4bfea33d620d477443)
Change-Id: I3b1d8a2808782c9f34d50240000e20cb38d3680f
Reviewed-by: Konstantin Tokarev <annulen@yandex.ru>
Diffstat (limited to 'Source/JavaScriptCore/bytecode/HandlerInfo.h')
| -rw-r--r-- | Source/JavaScriptCore/bytecode/HandlerInfo.h | 60 |
1 files changed, 57 insertions, 3 deletions
diff --git a/Source/JavaScriptCore/bytecode/HandlerInfo.h b/Source/JavaScriptCore/bytecode/HandlerInfo.h index 8396c9607..acdda08ed 100644 --- a/Source/JavaScriptCore/bytecode/HandlerInfo.h +++ b/Source/JavaScriptCore/bytecode/HandlerInfo.h @@ -27,16 +27,70 @@ #define HandlerInfo_h #include "CodeLocation.h" -#include <wtf/Platform.h> namespace JSC { -struct HandlerInfo { +enum class HandlerType { + Illegal = 0, + Catch = 1, + Finally = 2, + SynthesizedFinally = 3 +}; + +struct HandlerInfoBase { + HandlerType type() const { return static_cast<HandlerType>(typeBits); } + void setType(HandlerType type) { typeBits = static_cast<uint32_t>(type); } + + const char* typeName() + { + switch (type()) { + case HandlerType::Catch: + return "catch"; + case HandlerType::Finally: + return "finally"; + case HandlerType::SynthesizedFinally: + return "synthesized finally"; + default: + ASSERT_NOT_REACHED(); + } + return nullptr; + } + + bool isCatchHandler() const { return type() == HandlerType::Catch; } + uint32_t start; uint32_t end; uint32_t target; - uint32_t scopeDepth; + uint32_t typeBits : 2; // HandlerType +}; + +struct UnlinkedHandlerInfo : public HandlerInfoBase { + UnlinkedHandlerInfo(uint32_t start, uint32_t end, uint32_t target, HandlerType handlerType) + { + this->start = start; + this->end = end; + this->target = target; + setType(handlerType); + ASSERT(type() == handlerType); + } +}; + +struct HandlerInfo : public HandlerInfoBase { + void initialize(const UnlinkedHandlerInfo& unlinkedInfo) + { + start = unlinkedInfo.start; + end = unlinkedInfo.end; + target = unlinkedInfo.target; + typeBits = unlinkedInfo.typeBits; + } + #if ENABLE(JIT) + void initialize(const UnlinkedHandlerInfo& unlinkedInfo, CodeLocationLabel label) + { + initialize(unlinkedInfo); + nativeCode = label; + } + CodeLocationLabel nativeCode; #endif }; |