Jan de Mooij
e09592db9e
This worked because it relied on the proxy's `reservedSlots` pointer having the same offset as `NativeObject::slots_` (and proxies have `nfixed` 0 in the shape). It seems better to separate this and provide separate functions for callers that know the object is always a native object or a proxy. Later patches will start using those. This lets us change and optimize the proxy object layout. The `NativeObject` APIs are now a bit faster because they use the same trick as `NativeObject::getReservedSlotRef` (they no longer have to look at the shape's number of fixed slots). `JS::GetClass` was moved to `shadow/Object.h` to break an include cycle. Differential Revision: https://phabricator.services.mozilla.com/D300253
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* Shadow definition of |JSFunction| innards. Do not use this directly! */
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#ifndef js_shadow_Function_h
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#define js_shadow_Function_h
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#include <stdint.h> // uint16_t
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#include "jstypes.h" // JS_PUBLIC_API
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#include "js/CallArgs.h" // JSNative
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#include "js/shadow/Object.h" // JS::shadow::Object
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#include "js/Value.h" // JS::Value
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class JS_PUBLIC_API JSFunction;
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class JSJitInfo;
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namespace JS {
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namespace shadow {
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struct Function : shadow::NativeObject {
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enum {
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FlagsAndArgCountSlot,
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NativeFuncOrInterpretedEnvSlot,
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NativeJitInfoOrInterpretedScriptSlot,
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AtomSlot
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};
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uint32_t flagsAndArgCount() const {
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return fixedSlots()[FlagsAndArgCountSlot].toPrivateUint32();
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}
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void* jitInfoOrScript() const {
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return fixedSlots()[NativeJitInfoOrInterpretedScriptSlot].toPrivate();
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}
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void setJitInfoOrScript(void* ptr) {
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fixedSlots()[NativeJitInfoOrInterpretedScriptSlot] = JS::PrivateValue(ptr);
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}
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};
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} // namespace shadow
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} // namespace JS
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#endif // js_shadow_Function_h
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