JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / runtime / CodeCache.h

diff --git a/runtime/CodeCache.h b/runtime/CodeCache.h
index 1b015467b88bf753aa1bf9d509b2ef03d7e598f4..8877fc06c84e83b61a3451b5b8f253da19d47990 100644 (file)
--- a/runtime/CodeCache.h
+++ b/runtime/CodeCache.h
@@ -33,7 +33,6 @@
 #include "WeakRandom.h"
 #include <wtf/CurrentTime.h>
 #include <wtf/Forward.h>
-#include <wtf/PassOwnPtr.h>
 #include <wtf/RandomNumber.h>
 #include <wtf/text/WTFString.h>
 
@@ -43,6 +42,7 @@ class EvalExecutable;
 class FunctionBodyNode;
 class Identifier;
 class JSScope;
+class ParserError;
 class ProgramExecutable;
 class UnlinkedCodeBlock;
 class UnlinkedEvalCodeBlock;
@@ -50,7 +50,6 @@ class UnlinkedFunctionCodeBlock;
 class UnlinkedFunctionExecutable;
 class UnlinkedProgramCodeBlock;
 class VM;
-struct ParserError;
 class SourceCode;
 class SourceProvider;
 
@@ -62,10 +61,15 @@ public:
     {
     }
 
-    SourceCodeKey(const SourceCode& sourceCode, const String& name, CodeType codeType, JSParserStrictness jsParserStrictness)
+    SourceCodeKey(const SourceCode& sourceCode, const String& name, CodeType codeType, JSParserBuiltinMode builtinMode,
+        JSParserStrictMode strictMode, ThisTDZMode thisTDZMode = ThisTDZMode::CheckIfNeeded)
         : m_sourceCode(sourceCode)
         , m_name(name)
-        , m_flags((codeType << 2) | jsParserStrictness)
+        , m_flags(
+            (static_cast<unsigned>(codeType) << 3)
+            | (static_cast<unsigned>(builtinMode) << 2)
+            | (static_cast<unsigned>(strictMode) << 1)
+            | static_cast<unsigned>(thisTDZMode))
         , m_hash(string().impl()->hash())
     {
     }
@@ -145,18 +149,15 @@ public:
     {
     }
 
-    AddResult add(const SourceCodeKey& key, const SourceCodeValue& value)
+    SourceCodeValue* findCacheAndUpdateAge(const SourceCodeKey& key)
     {
         prune();
 
-        AddResult addResult = m_map.add(key, value);
-        if (addResult.isNewEntry) {
-            m_size += key.length();
-            m_age += key.length();
-            return addResult;
-        }
+        iterator findResult = m_map.find(key);
+        if (findResult == m_map.end())
+            return nullptr;
 
-        int64_t age = m_age - addResult.iterator->value.age;
+        int64_t age = m_age - findResult->value.age;
         if (age > m_capacity) {
             // A requested object is older than the cache's capacity. We can
             // infer that requested objects are subject to high eviction probability,
@@ -171,7 +172,20 @@ public:
                 m_capacity = m_minCapacity;
         }
 
-        addResult.iterator->value.age = m_age;
+        findResult->value.age = m_age;
+        m_age += key.length();
+
+        return &findResult->value;
+    }
+
+    AddResult addCache(const SourceCodeKey& key, const SourceCodeValue& value)
+    {
+        prune();
+
+        AddResult addResult = m_map.add(key, value);
+        ASSERT(addResult.isNewEntry);
+
+        m_size += key.length();
         m_age += key.length();
         return addResult;
     }
@@ -237,12 +251,12 @@ private:
 class CodeCache {
     WTF_MAKE_FAST_ALLOCATED;
 public:
-    static PassOwnPtr<CodeCache> create() { return adoptPtr(new CodeCache); }
+    CodeCache();
+    ~CodeCache();
 
-    UnlinkedProgramCodeBlock* getProgramCodeBlock(VM&, ProgramExecutable*, const SourceCode&, JSParserStrictness, DebuggerMode, ProfilerMode, ParserError&);
-    UnlinkedEvalCodeBlock* getEvalCodeBlock(VM&, EvalExecutable*, const SourceCode&, JSParserStrictness, DebuggerMode, ProfilerMode, ParserError&);
+    UnlinkedProgramCodeBlock* getProgramCodeBlock(VM&, ProgramExecutable*, const SourceCode&, JSParserBuiltinMode, JSParserStrictMode, DebuggerMode, ProfilerMode, ParserError&);
+    UnlinkedEvalCodeBlock* getEvalCodeBlock(VM&, EvalExecutable*, const SourceCode&, JSParserBuiltinMode, JSParserStrictMode, ThisTDZMode, DebuggerMode, ProfilerMode, ParserError&);
     UnlinkedFunctionExecutable* getFunctionExecutableFromGlobalCode(VM&, const Identifier&, const SourceCode&, ParserError&);
-    ~CodeCache();
 
     void clear()
     {
@@ -250,10 +264,8 @@ public:
     }
 
 private:
-    CodeCache();
-
     template <class UnlinkedCodeBlockType, class ExecutableType> 
-    UnlinkedCodeBlockType* getGlobalCodeBlock(VM&, ExecutableType*, const SourceCode&, JSParserStrictness, DebuggerMode, ProfilerMode, ParserError&);
+    UnlinkedCodeBlockType* getGlobalCodeBlock(VM&, ExecutableType*, const SourceCode&, JSParserBuiltinMode, JSParserStrictMode, ThisTDZMode, DebuggerMode, ProfilerMode, ParserError&);
 
     CodeCacheMap m_sourceCode;
 };