Changeset 210149 in webkit for trunk/Source/JavaScriptCore/parser/SourceCode.h

Timestamp:

Dec 25, 2016, 10:35:07 PM (8 years ago)

Author:

Yusuke Suzuki

Message:

Propagate the source origin as much as possible
​https://bugs.webkit.org/show_bug.cgi?id=166348

Reviewed by Darin Adler.

JSTests:

• stress/source-origin.js: Added.

(shouldBe):

Source/JavaScriptCore:

This patch introduces CallFrame::callerSourceOrigin, SourceOrigin class
and SourceProvider::m_sourceOrigin. CallFrame::callerSourceOrigin returns
an appropriate SourceOrigin if possible. If we cannot find the appropriate
one, we just return null SourceOrigin.

This paves the way for implementing the module dynamic-import[1].
When the import operator is evaluated, it will resolve the module
specifier with this propagated source origin of the caller function.

To support import operator inside the dynamic code generation
functions (like eval, new Function, indirect call to eval),
we need to propagate the caller's source origin to the generated
source code.

We do not use sourceURL for that purpose. This is because we
would like to keep sourceURL for eval / new Function null.
This sourceURL will be used for the stack dump for errors with line/column
numbers. Dumping the caller's sourceURL with line/column numbers are
meaningless. So we would like to keep it null while we would like
to propagate SourceOrigin for dynamic imports.

[1]: ​https://github.com/tc39/proposal-dynamic-import

• API/JSBase.cpp:

(JSEvaluateScript):
(JSCheckScriptSyntax):

• API/JSObjectRef.cpp:

(JSObjectMakeFunction):

• API/JSScriptRef.cpp:

(OpaqueJSScript::create):
(OpaqueJSScript::vm):
(OpaqueJSScript::OpaqueJSScript):
(parseScript):

• JavaScriptCore.xcodeproj/project.pbxproj:
• Scripts/builtins/builtins_templates.py:
• Scripts/tests/builtins/expected/WebCore-AnotherGuardedInternalBuiltin-Separate.js-result:
• Scripts/tests/builtins/expected/WebCore-ArbitraryConditionalGuard-Separate.js-result:
• Scripts/tests/builtins/expected/WebCore-GuardedBuiltin-Separate.js-result:
• Scripts/tests/builtins/expected/WebCore-GuardedInternalBuiltin-Separate.js-result:
• Scripts/tests/builtins/expected/WebCore-UnguardedBuiltin-Separate.js-result:
• Scripts/tests/builtins/expected/WebCore-xmlCasingTest-Separate.js-result:
• builtins/BuiltinExecutables.cpp:

(JSC::BuiltinExecutables::BuiltinExecutables):
(JSC::BuiltinExecutables::createDefaultConstructor):

• debugger/DebuggerCallFrame.cpp:

(JSC::DebuggerCallFrame::evaluateWithScopeExtension):

• inspector/InjectedScriptManager.cpp:

(Inspector::InjectedScriptManager::createInjectedScript):

• inspector/JSInjectedScriptHost.cpp:

(Inspector::JSInjectedScriptHost::evaluateWithScopeExtension):

• inspector/agents/InspectorRuntimeAgent.cpp:

(Inspector::InspectorRuntimeAgent::parse):

• interpreter/CallFrame.cpp:

(JSC::CallFrame::callerSourceOrigin):

• interpreter/CallFrame.h:
• interpreter/Interpreter.cpp:

(JSC::eval):

• jsc.cpp:

(jscSource):
(GlobalObject::finishCreation):
(extractDirectoryName):
(currentWorkingDirectory):
(GlobalObject::moduleLoaderResolve):
(functionRunString):
(functionLoadString):
(functionCallerSourceOrigin):
(functionCreateBuiltin):
(functionCheckModuleSyntax):
(runInteractive):

• parser/SourceCode.h:

(JSC::makeSource):

• parser/SourceProvider.cpp:

(JSC::SourceProvider::SourceProvider):

• parser/SourceProvider.h:

(JSC::SourceProvider::sourceOrigin):
(JSC::StringSourceProvider::create):
(JSC::StringSourceProvider::StringSourceProvider):
(JSC::WebAssemblySourceProvider::create):
(JSC::WebAssemblySourceProvider::WebAssemblySourceProvider):

• runtime/FunctionConstructor.cpp:

(JSC::constructFunction):
(JSC::constructFunctionSkippingEvalEnabledCheck):

• runtime/FunctionConstructor.h:
• runtime/JSGlobalObjectFunctions.cpp:

(JSC::globalFuncEval):

• runtime/ModuleLoaderPrototype.cpp:

(JSC::moduleLoaderPrototypeParseModule):

• runtime/ScriptExecutable.h:

(JSC::ScriptExecutable::sourceOrigin):

• runtime/SourceOrigin.h: Added.

(JSC::SourceOrigin::SourceOrigin):
(JSC::SourceOrigin::string):
(JSC::SourceOrigin::isNull):

• tools/FunctionOverrides.cpp:

(JSC::initializeOverrideInfo):

Source/WebCore:

• bindings/js/CachedScriptSourceProvider.h:

(WebCore::CachedScriptSourceProvider::CachedScriptSourceProvider):

• bindings/js/JSLazyEventListener.cpp:

(WebCore::JSLazyEventListener::initializeJSFunction):

• bindings/js/ScriptSourceCode.h:

(WebCore::ScriptSourceCode::ScriptSourceCode):

• bridge/NP_jsobject.cpp:

(_NPN_Evaluate):

• bridge/objc/WebScriptObject.mm:

(-[WebScriptObject evaluateWebScript:]):

Source/WebKit/mac:

• Plugins/Hosted/NetscapePluginInstanceProxy.mm:

(WebKit::NetscapePluginInstanceProxy::evaluate):

Source/WebKit/win:

• Plugins/PluginPackage.cpp:

(WebCore::NPN_Evaluate):
(WebCore::makeSource): Deleted.

Source/WebKit2:

• WebProcess/Plugins/Netscape/NPRuntimeObjectMap.cpp:

(WebKit::NPRuntimeObjectMap::evaluate):

File:

• trunk/Source/JavaScriptCore/parser/SourceCode.h (modified) (1 diff)

trunk/Source/JavaScriptCore/parser/SourceCode.h

@@ -80 +80 @@
     };
 
-    inline SourceCode makeSource(const String& source, const String& url = String(), const TextPosition& startPosition = TextPosition(), SourceProviderSourceType sourceType = SourceProviderSourceType::Program)
+    inline SourceCode makeSource(const String& source, const SourceOrigin& sourceOrigin, const String& url = String(), const TextPosition& startPosition = TextPosition(), SourceProviderSourceType sourceType = SourceProviderSourceType::Program)
     {
-        return SourceCode(StringSourceProvider::create(source, url, startPosition, sourceType), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
+        return SourceCode(StringSourceProvider::create(source, sourceOrigin, url, startPosition, sourceType), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
     }