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Issue #618 - Align error handling for module scripts with the spec (again)

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This updates module implementation to match spec regarding handling of
instantiation errors, after it was changed yet again, this time to not remember
instantiation errors, but instead immediately rethrow applicable ones.

Ref: BZ 1420420
This commit is contained in:
Moonchild 2020-07-08 12:58:30 +00:00 • committed by Roy Tam
commit 0d874713ef
20 changed files with 331 additions and 266 deletions
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12
dom/script/ModuleScript.h
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@ -23,7 +23,8 @@ class ModuleScript final : public nsISupports
RefPtr<ScriptLoader> mLoader;
nsCOMPtr<nsIURI> mBaseURL;
JS::Heap<JSObject*> mModuleRecord;
JS::Heap<JS::Value> mError;
JS::Heap<JS::Value> mParseError;
JS::Heap<JS::Value> mErrorToRethrow;
~ModuleScript();
@ -35,14 +36,17 @@ public:
nsIURI* aBaseURL);
void SetModuleRecord(JS::Handle<JSObject*> aModuleRecord);
void SetPreInstantiationError(const JS::Value& aError);
void SetParseError(const JS::Value& aError);
void SetErrorToRethrow(const JS::Value& aError);
ScriptLoader* Loader() const { return mLoader; }
JSObject* ModuleRecord() const { return mModuleRecord; }
nsIURI* BaseURL() const { return mBaseURL; }
bool IsErrored() const;
JS::Value Error() const;
JS::Value ParseError() const { return mParseError; }
JS::Value ErrorToRethrow() const { return mErrorToRethrow; }
bool HasParseError() const { return !mParseError.isUndefined(); }
bool HasErrorToRethrow() const { return !mErrorToRethrow.isUndefined(); }
void UnlinkModuleRecord();
};