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Issue #1691 - Part 7c: Refactor ModuleScript into ClassicScript class and LoadedScript base class so we can represent all scripts that can perform dynamic import. https://bugzilla.mozilla.org/show_bug.cgi?id=1342012

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(cherry picked from commit c37b8b55231f6609c87e49c84edf7e94a1bf5518)
This commit is contained in:
Brian Smith 2023-04-18 23:43:04 -05:00 • committed by roytam1
commit 41eda05e57
2 changed files with 115 additions and 27 deletions
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59
dom/script/ModuleScript.h
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@ -9,6 +9,7 @@
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "jsapi.h"
#include "ScriptLoader.h"
class nsIURI;
@ -19,11 +20,49 @@ class ScriptLoader;
void HostFinalizeTopLevelScript(JSFreeOp* aFop, const JS::Value& aPrivate);
class ModuleScript final : public nsISupports
class ClassicScript;
class ModuleScript;
class LoadedScript : public nsISupports
{
ScriptKind mKind;
RefPtr<ScriptLoader> mLoader;
RefPtr<ScriptFetchOptions> mFetchOptions;
nsCOMPtr<nsIURI> mBaseURL;
protected:
LoadedScript(ScriptKind aKind, ScriptLoader* aLoader,
ScriptFetchOptions* aFetchOptions, nsIURI* aBaseURL);
virtual ~LoadedScript();
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(LoadedScript)
bool IsModuleScript() const { return mKind == ScriptKind::Module; }
inline ClassicScript* AsClassicScript();
inline ModuleScript* AsModuleScript();
ScriptLoader* Loader() const { return mLoader; }
ScriptFetchOptions* FetchOptions() const { return mFetchOptions; }
nsIURI* BaseURL() const { return mBaseURL; }
};
class ClassicScript final : public LoadedScript
{
~ClassicScript() = default;
public:
ClassicScript(ScriptLoader* aLoader, ScriptFetchOptions* aFetchOptions,
nsIURI* aBaseURL);
};
// A single module script. May be used to satisfy multiple load requests.
class ModuleScript final : public LoadedScript
{
JS::Heap<JSObject*> mModuleRecord;
JS::Heap<JS::Value> mParseError;
JS::Heap<JS::Value> mErrorToRethrow;
@ -31,8 +70,9 @@ class ModuleScript final : public nsISupports
~ModuleScript();
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(ModuleScript)
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(ModuleScript,
LoadedScript)
ModuleScript(ScriptLoader* aLoader, ScriptFetchOptions* aFetchOptions,
nsIURI* aBaseURL);
@ -41,10 +81,7 @@ public:
void SetParseError(const JS::Value& aError);
void SetErrorToRethrow(const JS::Value& aError);
ScriptLoader* Loader() const { return mLoader; }
ScriptFetchOptions* FetchOptions() const { return mFetchOptions; }
JSObject* ModuleRecord() const { return mModuleRecord; }
nsIURI* BaseURL() const { return mBaseURL; }
JS::Value ParseError() const { return mParseError; }
JS::Value ErrorToRethrow() const { return mErrorToRethrow; }
@ -56,6 +93,16 @@ public:
friend void HostFinalizeTopLevelScript(JSFreeOp*, const JS::Value&);
};
ClassicScript* LoadedScript::AsClassicScript() {
MOZ_ASSERT(!IsModuleScript());
return static_cast<ClassicScript*>(this);
}
ModuleScript* LoadedScript::AsModuleScript() {
MOZ_ASSERT(IsModuleScript());
return static_cast<ModuleScript*>(this);
}
} // dom namespace
} // mozilla namespace