X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/ba379fdc102753d6be2c4d937058fe40257329fe..93a3786624b2768d89bfa27e46598dc64e2fb70a:/API/JSValueRef.cpp

diff --git a/API/JSValueRef.cpp b/API/JSValueRef.cpp
index 2207181..81a2db7 100644
--- a/API/JSValueRef.cpp
+++ b/API/JSValueRef.cpp
@@ -26,28 +26,52 @@
 #include "config.h"
 #include "JSValueRef.h"
 
-#include <wtf/Platform.h>
 #include "APICast.h"
+#include "APIShims.h"
+#include "JSAPIWrapperObject.h"
 #include "JSCallbackObject.h"
 
+#include <runtime/JSCJSValue.h>
 #include <runtime/JSGlobalObject.h>
+#include <runtime/JSONObject.h>
 #include <runtime/JSString.h>
+#include <runtime/LiteralParser.h>
 #include <runtime/Operations.h>
 #include <runtime/Protect.h>
-#include <runtime/UString.h>
-#include <runtime/JSValue.h>
 
 #include <wtf/Assertions.h>
+#include <wtf/text/StringHash.h>
+#include <wtf/text/WTFString.h>
 
 #include <algorithm> // for std::min
 
-JSType JSValueGetType(JSContextRef ctx, JSValueRef value)
+#if PLATFORM(MAC)
+#include <mach-o/dyld.h>
+#endif
+
+using namespace JSC;
+
+#if PLATFORM(MAC)
+static bool evernoteHackNeeded()
+{
+    static const int32_t webkitLastVersionWithEvernoteHack = 35133959;
+    static bool hackNeeded = CFEqual(CFBundleGetIdentifier(CFBundleGetMainBundle()), CFSTR("com.evernote.Evernote"))
+        && NSVersionOfLinkTimeLibrary("JavaScriptCore") <= webkitLastVersionWithEvernoteHack;
+
+    return hackNeeded;
+}
+#endif
+
+::JSType JSValueGetType(JSContextRef ctx, JSValueRef value)
 {
-    JSC::ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSC::JSLock lock(exec);
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return kJSTypeUndefined;
+    }
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
 
-    JSC::JSValue jsValue = toJS(exec, value);
+    JSValue jsValue = toJS(exec, value);
 
     if (jsValue.isUndefined())
         return kJSTypeUndefined;
@@ -63,13 +87,14 @@ JSType JSValueGetType(JSContextRef ctx, JSValueRef value)
     return kJSTypeObject;
 }
 
-using namespace JSC; // placed here to avoid conflict between JSC::JSType and JSType, above.
-
 bool JSValueIsUndefined(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isUndefined();
@@ -77,9 +102,12 @@ bool JSValueIsUndefined(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isNull();
@@ -87,9 +115,12 @@ bool JSValueIsNull(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsBoolean(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isBoolean();
@@ -97,9 +128,12 @@ bool JSValueIsBoolean(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isNumber();
@@ -107,9 +141,12 @@ bool JSValueIsNumber(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsString(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isString();
@@ -117,9 +154,12 @@ bool JSValueIsString(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsObject(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.isObject();
@@ -127,26 +167,36 @@ bool JSValueIsObject(JSContextRef ctx, JSValueRef value)
 
 bool JSValueIsObjectOfClass(JSContextRef ctx, JSValueRef value, JSClassRef jsClass)
 {
+    if (!ctx || !jsClass) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     
     if (JSObject* o = jsValue.getObject()) {
-        if (o->inherits(&JSCallbackObject<JSGlobalObject>::info))
-            return static_cast<JSCallbackObject<JSGlobalObject>*>(o)->inherits(jsClass);
-        else if (o->inherits(&JSCallbackObject<JSObject>::info))
-            return static_cast<JSCallbackObject<JSObject>*>(o)->inherits(jsClass);
+        if (o->inherits(&JSCallbackObject<JSGlobalObject>::s_info))
+            return jsCast<JSCallbackObject<JSGlobalObject>*>(o)->inherits(jsClass);
+        if (o->inherits(&JSCallbackObject<JSDestructibleObject>::s_info))
+            return jsCast<JSCallbackObject<JSDestructibleObject>*>(o)->inherits(jsClass);
+#if JSC_OBJC_API_ENABLED
+        if (o->inherits(&JSCallbackObject<JSAPIWrapperObject>::s_info))
+            return jsCast<JSCallbackObject<JSAPIWrapperObject>*>(o)->inherits(jsClass);
+#endif
     }
     return false;
 }
 
 bool JSValueIsEqual(JSContextRef ctx, JSValueRef a, JSValueRef b, JSValueRef* exception)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsA = toJS(exec, a);
     JSValue jsB = toJS(exec, b);
@@ -162,28 +212,34 @@ bool JSValueIsEqual(JSContextRef ctx, JSValueRef a, JSValueRef b, JSValueRef* ex
 
 bool JSValueIsStrictEqual(JSContextRef ctx, JSValueRef a, JSValueRef b)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsA = toJS(exec, a);
     JSValue jsB = toJS(exec, b);
 
-    return JSValue::strictEqual(jsA, jsB);
+    return JSValue::strictEqual(exec, jsA, jsB);
 }
 
 bool JSValueIsInstanceOfConstructor(JSContextRef ctx, JSValueRef value, JSObjectRef constructor, JSValueRef* exception)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
 
     JSObject* jsConstructor = toJS(constructor);
     if (!jsConstructor->structure()->typeInfo().implementsHasInstance())
         return false;
-    bool result = jsConstructor->hasInstance(exec, jsValue, jsConstructor->get(exec, exec->propertyNames().prototype)); // false if an exception is thrown
+    bool result = jsConstructor->hasInstance(exec, jsValue); // false if an exception is thrown
     if (exec->hadException()) {
         if (exception)
             *exception = toRef(exec, exec->exception());
@@ -194,54 +250,117 @@ bool JSValueIsInstanceOfConstructor(JSContextRef ctx, JSValueRef value, JSObject
 
 JSValueRef JSValueMakeUndefined(JSContextRef ctx)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     return toRef(exec, jsUndefined());
 }
 
 JSValueRef JSValueMakeNull(JSContextRef ctx)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     return toRef(exec, jsNull());
 }
 
 JSValueRef JSValueMakeBoolean(JSContextRef ctx, bool value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     return toRef(exec, jsBoolean(value));
 }
 
 JSValueRef JSValueMakeNumber(JSContextRef ctx, double value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
-    return toRef(exec, jsNumber(exec, value));
+    // Our JSValue representation relies on a standard bit pattern for NaN. NaNs
+    // generated internally to JavaScriptCore naturally have that representation,
+    // but an external NaN might not.
+    if (std::isnan(value))
+        value = QNaN;
+
+    return toRef(exec, jsNumber(value));
 }
 
 JSValueRef JSValueMakeString(JSContextRef ctx, JSStringRef string)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
+
+    return toRef(exec, jsString(exec, string->string()));
+}
 
-    return toRef(exec, jsString(exec, string->ustring()));
+JSValueRef JSValueMakeFromJSONString(JSContextRef ctx, JSStringRef string)
+{
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+    String str = string->string();
+    unsigned length = str.length();
+    if (length && str.is8Bit()) {
+        LiteralParser<LChar> parser(exec, str.characters8(), length, StrictJSON);
+        return toRef(exec, parser.tryLiteralParse());
+    }
+    LiteralParser<UChar> parser(exec, str.characters(), length, StrictJSON);
+    return toRef(exec, parser.tryLiteralParse());
+}
+
+JSStringRef JSValueCreateJSONString(JSContextRef ctx, JSValueRef apiValue, unsigned indent, JSValueRef* exception)
+{
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
+    ExecState* exec = toJS(ctx);
+    APIEntryShim entryShim(exec);
+    JSValue value = toJS(exec, apiValue);
+    String result = JSONStringify(exec, value, indent);
+    if (exception)
+        *exception = 0;
+    if (exec->hadException()) {
+        if (exception)
+            *exception = toRef(exec, exec->exception());
+        exec->clearException();
+        return 0;
+    }
+    return OpaqueJSString::create(result).leakRef();
 }
 
 bool JSValueToBoolean(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return false;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     return jsValue.toBoolean(exec);
@@ -249,9 +368,12 @@ bool JSValueToBoolean(JSContextRef ctx, JSValueRef value)
 
 double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return QNaN;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
 
@@ -260,34 +382,40 @@ double JSValueToNumber(JSContextRef ctx, JSValueRef value, JSValueRef* exception
         if (exception)
             *exception = toRef(exec, exec->exception());
         exec->clearException();
-        number = NaN;
+        number = QNaN;
     }
     return number;
 }
 
 JSStringRef JSValueToStringCopy(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     
-    RefPtr<OpaqueJSString> stringRef(OpaqueJSString::create(jsValue.toString(exec)));
+    RefPtr<OpaqueJSString> stringRef(OpaqueJSString::create(jsValue.toString(exec)->value(exec)));
     if (exec->hadException()) {
         if (exception)
             *exception = toRef(exec, exec->exception());
         exec->clearException();
         stringRef.clear();
     }
-    return stringRef.release().releaseRef();
+    return stringRef.release().leakRef();
 }
 
 JSObjectRef JSValueToObject(JSContextRef ctx, JSValueRef value, JSValueRef* exception)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return 0;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
     JSValue jsValue = toJS(exec, value);
     
@@ -303,20 +431,27 @@ JSObjectRef JSValueToObject(JSContextRef ctx, JSValueRef value, JSValueRef* exce
 
 void JSValueProtect(JSContextRef ctx, JSValueRef value)
 {
+    if (!ctx) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
-    JSValue jsValue = toJS(exec, value);
+    JSValue jsValue = toJSForGC(exec, value);
     gcProtect(jsValue);
 }
 
 void JSValueUnprotect(JSContextRef ctx, JSValueRef value)
 {
+#if PLATFORM(MAC)
+    if ((!value || !ctx) && evernoteHackNeeded())
+        return;
+#endif
+
     ExecState* exec = toJS(ctx);
-    exec->globalData().heap.registerThread();
-    JSLock lock(exec);
+    APIEntryShim entryShim(exec);
 
-    JSValue jsValue = toJS(exec, value);
+    JSValue jsValue = toJSForGC(exec, value);
     gcUnprotect(jsValue);
 }