static bool
CreateLazyScriptsForCompartment(JSContext *cx)
{
AutoObjectVector lazyFunctions(cx);
// Find all root lazy functions in the compartment: those which have not been
// compiled and which have a source object, indicating that their parent has
// been compiled.
for (gc::CellIter i(cx->zone(), JSFunction::FinalizeKind); !i.done(); i.next()) {
JSObject *obj = i.get<JSObject>();
if (obj->compartment() == cx->compartment() && obj->is<JSFunction>()) {
JSFunction *fun = &obj->as<JSFunction>();
if (fun->isInterpretedLazy()) {
LazyScript *lazy = fun->lazyScriptOrNull();
if (lazy && lazy->sourceObject() && !lazy->maybeScript()) {
if (!lazyFunctions.append(fun))
return false;
}
}
}
}
// Create scripts for each lazy function, updating the list of functions to
// process with any newly exposed inner functions in created scripts.
// A function cannot be delazified until its outer script exists.
for (size_t i = 0; i < lazyFunctions.length(); i++) {
JSFunction *fun = &lazyFunctions[i]->as<JSFunction>();
// lazyFunctions may have been populated with multiple functions for
// a lazy script.
if (!fun->isInterpretedLazy())
continue;
JSScript *script = fun->getOrCreateScript(cx);
if (!script)
return false;
if (!AddInnerLazyFunctionsFromScript(script, lazyFunctions))
return false;
}
// Repoint any clones of the original functions to their new script.
for (gc::CellIter i(cx->zone(), JSFunction::FinalizeKind); !i.done(); i.next()) {
JSObject *obj = i.get<JSObject>();
if (obj->compartment() == cx->compartment() && obj->is<JSFunction>()) {
JSFunction *fun = &obj->as<JSFunction>();
if (fun->isInterpretedLazy()) {
LazyScript *lazy = fun->lazyScriptOrNull();
if (lazy && lazy->maybeScript())
fun->existingScript();
}
}
}
return true;
}
static bool
CreateLazyScriptsForCompartment(JSContext* cx)
{
AutoObjectVector lazyFunctions(cx);
// Find all live root lazy functions in the compartment: those which
// have not been compiled, which have a source object, indicating that
// they have a parent, and which do not have an uncompiled enclosing
// script. The last condition is so that we don't compile lazy scripts
// whose enclosing scripts failed to compile, indicating that the lazy
// script did not escape the script.
//
// Note that while we ideally iterate over LazyScripts, LazyScripts do not
// currently stand in 1-1 relation with JSScripts; JSFunctions with the
// same LazyScript may create different JSScripts due to relazification of
// clones. See bug 1105306.
for (gc::ZoneCellIter i(cx->zone(), JSFunction::FinalizeKind); !i.done(); i.next()) {
JSObject* obj = i.get<JSObject>();
if (obj->compartment() == cx->compartment() && obj->is<JSFunction>()) {
JSFunction* fun = &obj->as<JSFunction>();
if (fun->isInterpretedLazy()) {
LazyScript* lazy = fun->lazyScriptOrNull();
if (lazy && lazy->sourceObject() && !lazy->maybeScript() &&
!lazy->hasUncompiledEnclosingScript())
{
if (!lazyFunctions.append(fun))
return false;
}
}
}
}
// Create scripts for each lazy function, updating the list of functions to
// process with any newly exposed inner functions in created scripts.
// A function cannot be delazified until its outer script exists.
for (size_t i = 0; i < lazyFunctions.length(); i++) {
JSFunction* fun = &lazyFunctions[i]->as<JSFunction>();
// lazyFunctions may have been populated with multiple functions for
// a lazy script.
if (!fun->isInterpretedLazy())
continue;
LazyScript* lazy = fun->lazyScript();
bool lazyScriptHadNoScript = !lazy->maybeScript();
JSScript* script = fun->getOrCreateScript(cx);
if (!script)
return false;
if (lazyScriptHadNoScript && !AddInnerLazyFunctionsFromScript(script, lazyFunctions))
return false;
}
return true;
}
bool
CreateThis(JSContext *cx, HandleObject callee, MutableHandleValue rval)
{
rval.set(MagicValue(JS_IS_CONSTRUCTING));
if (callee->isFunction()) {
JSFunction *fun = callee->toFunction();
if (fun->isInterpreted()) {
JSScript *script = fun->getOrCreateScript(cx);
if (!script || !script->ensureHasTypes(cx))
return false;
rval.set(ObjectValue(*CreateThisForFunction(cx, callee, false)));
}
}
return true;
}
static bool
CreateLazyScriptsForCompartment(JSContext *cx)
{
AutoObjectVector lazyFunctions(cx);
// Find all live lazy scripts in the compartment, and via them all root
// lazy functions in the compartment: those which have not been compiled,
// which have a source object, indicating that they have a parent, and
// which do not have an uncompiled enclosing script. The last condition is
// so that we don't compile lazy scripts whose enclosing scripts failed to
// compile, indicating that the lazy script did not escape the script.
for (gc::ZoneCellIter i(cx->zone(), gc::FINALIZE_LAZY_SCRIPT); !i.done(); i.next()) {
LazyScript *lazy = i.get<LazyScript>();
JSFunction *fun = lazy->functionNonDelazifying();
if (fun->compartment() == cx->compartment() &&
lazy->sourceObject() && !lazy->maybeScript() &&
!lazy->hasUncompiledEnclosingScript())
{
MOZ_ASSERT(fun->isInterpretedLazy());
MOZ_ASSERT(lazy == fun->lazyScriptOrNull());
if (!lazyFunctions.append(fun))
return false;
}
}
// Create scripts for each lazy function, updating the list of functions to
// process with any newly exposed inner functions in created scripts.
// A function cannot be delazified until its outer script exists.
for (size_t i = 0; i < lazyFunctions.length(); i++) {
JSFunction *fun = &lazyFunctions[i]->as<JSFunction>();
// lazyFunctions may have been populated with multiple functions for
// a lazy script.
if (!fun->isInterpretedLazy())
continue;
JSScript *script = fun->getOrCreateScript(cx);
if (!script)
return false;
if (!AddInnerLazyFunctionsFromScript(script, lazyFunctions))
return false;
}
return true;
}
bool
CreateThis(JSContext *cx, HandleObject callee, MutableHandleValue rval)
{
rval.set(MagicValue(JS_IS_CONSTRUCTING));
if (callee->is<JSFunction>()) {
JSFunction *fun = &callee->as<JSFunction>();
if (fun->isInterpretedConstructor()) {
JSScript *script = fun->getOrCreateScript(cx);
if (!script || !script->ensureHasTypes(cx))
return false;
JSObject *thisObj = CreateThisForFunction(cx, callee, GenericObject);
if (!thisObj)
return false;
rval.set(ObjectValue(*thisObj));
}
}
return true;
}
static bool
CreateLazyScriptsForCompartment(JSContext* cx)
{
AutoObjectVector lazyFunctions(cx);
if (!AddLazyFunctionsForCompartment(cx, lazyFunctions, AllocKind::FUNCTION))
return false;
// Methods, for instance {get method() {}}, are extended functions that can
// be relazified, so we need to handle those as well.
if (!AddLazyFunctionsForCompartment(cx, lazyFunctions, AllocKind::FUNCTION_EXTENDED))
return false;
// Create scripts for each lazy function, updating the list of functions to
// process with any newly exposed inner functions in created scripts.
// A function cannot be delazified until its outer script exists.
for (size_t i = 0; i < lazyFunctions.length(); i++) {
JSFunction* fun = &lazyFunctions[i]->as<JSFunction>();
// lazyFunctions may have been populated with multiple functions for
// a lazy script.
if (!fun->isInterpretedLazy())
continue;
LazyScript* lazy = fun->lazyScript();
bool lazyScriptHadNoScript = !lazy->maybeScript();
JSScript* script = fun->getOrCreateScript(cx);
if (!script)
return false;
if (lazyScriptHadNoScript && !AddInnerLazyFunctionsFromScript(script, lazyFunctions))
return false;
}
return true;
}
