diff options
Diffstat (limited to 'js/src/jsfun.h')
| -rw-r--r-- | js/src/jsfun.h | 51 |
1 files changed, 28 insertions, 23 deletions
diff --git a/js/src/jsfun.h b/js/src/jsfun.h index 7da831aa2..234169507 100644 --- a/js/src/jsfun.h +++ b/js/src/jsfun.h @@ -58,8 +58,6 @@ class JSFunction : public js::NativeObject CONSTRUCTOR = 0x0002, /* function that can be called as a constructor */ EXTENDED = 0x0004, /* structure is FunctionExtended */ BOUND_FUN = 0x0008, /* function was created with Function.prototype.bind. */ - EXPR_BODY = 0x0010, /* arrow function with expression body or - * expression closure: function(x) x*x */ HAS_GUESSED_ATOM = 0x0020, /* function had no explicit name, but a name was guessed for it anyway */ LAMBDA = 0x0040, /* function comes from a FunctionExpression, ArrowFunction, or @@ -102,7 +100,7 @@ class JSFunction : public js::NativeObject INTERPRETED_GENERATOR = INTERPRETED, NO_XDR_FLAGS = RESOLVED_LENGTH | RESOLVED_NAME, - STABLE_ACROSS_CLONES = CONSTRUCTOR | EXPR_BODY | HAS_GUESSED_ATOM | LAMBDA | + STABLE_ACROSS_CLONES = CONSTRUCTOR | HAS_GUESSED_ATOM | LAMBDA | SELF_HOSTED | HAS_COMPILE_TIME_NAME | FUNCTION_KIND_MASK }; @@ -187,7 +185,6 @@ class JSFunction : public js::NativeObject bool isAsmJSNative() const { return kind() == AsmJS; } /* Possible attributes of an interpreted function: */ - bool isExprBody() const { return flags() & EXPR_BODY; } bool hasCompileTimeName() const { return flags() & HAS_COMPILE_TIME_NAME; } bool hasGuessedAtom() const { return flags() & HAS_GUESSED_ATOM; } bool isLambda() const { return flags() & LAMBDA; } @@ -290,11 +287,6 @@ class JSFunction : public js::NativeObject flags_ |= SELF_HOSTED; } - // Can be called multiple times by the parser. - void setIsExprBody() { - flags_ |= EXPR_BODY; - } - void setArrow() { setKind(Arrow); } @@ -314,7 +306,8 @@ class JSFunction : public js::NativeObject nonLazyScript()->setAsyncKind(asyncKind); } - bool getUnresolvedLength(JSContext* cx, js::MutableHandleValue v); + static bool getUnresolvedLength(JSContext* cx, js::HandleFunction fun, + js::MutableHandleValue v); JSAtom* getUnresolvedName(JSContext* cx); @@ -419,16 +412,15 @@ class JSFunction : public js::NativeObject // // - For functions known to have a JSScript, nonLazyScript() will get it. - JSScript* getOrCreateScript(JSContext* cx) { - MOZ_ASSERT(isInterpreted()); + static JSScript* getOrCreateScript(JSContext* cx, js::HandleFunction fun) { + MOZ_ASSERT(fun->isInterpreted()); MOZ_ASSERT(cx); - if (isInterpretedLazy()) { - JS::RootedFunction self(cx, this); - if (!createScriptForLazilyInterpretedFunction(cx, self)) + if (fun->isInterpretedLazy()) { + if (!createScriptForLazilyInterpretedFunction(cx, fun)) return nullptr; - return self->nonLazyScript(); + return fun->nonLazyScript(); } - return nonLazyScript(); + return fun->nonLazyScript(); } JSScript* existingScriptNonDelazifying() const { @@ -460,6 +452,19 @@ class JSFunction : public js::NativeObject return nonLazyScript(); } + // If this is a scripted function, returns its canonical function (the + // original function allocated by the frontend). Note that lazy self-hosted + // builtins don't have a lazy script so in that case we also return nullptr. + JSFunction* maybeCanonicalFunction() const { + if (hasScript()) { + return nonLazyScript()->functionNonDelazifying(); + } + if (isInterpretedLazy() && !isSelfHostedBuiltin()) { + return lazyScript()->functionNonDelazifying(); + } + return nullptr; + } + // The state of a JSFunction whose script errored out during bytecode // compilation. Such JSFunctions are only reachable via GC iteration and // not from script. @@ -473,7 +478,7 @@ class JSFunction : public js::NativeObject return u.i.s.script_; } - bool getLength(JSContext* cx, uint16_t* length); + static bool getLength(JSContext* cx, js::HandleFunction fun, uint16_t* length); js::LazyScript* lazyScript() const { MOZ_ASSERT(isInterpretedLazy() && u.i.s.lazy_); @@ -580,13 +585,17 @@ class JSFunction : public js::NativeObject return offsetof(JSFunction, u.nativeOrScript); } + static unsigned offsetOfJitInfo() { + return offsetof(JSFunction, u.n.jitinfo); + } + inline void trace(JSTracer* trc); /* Bound function accessors. */ JSObject* getBoundFunctionTarget() const; const js::Value& getBoundFunctionThis() const; - const js::Value& getBoundFunctionArgument(JSContext* cx, unsigned which) const; + const js::Value& getBoundFunctionArgument(unsigned which) const; size_t getBoundFunctionArgumentCount() const; private: @@ -789,10 +798,6 @@ CloneFunctionAndScript(JSContext* cx, HandleFunction fun, HandleObject parent, gc::AllocKind kind = gc::AllocKind::FUNCTION, HandleObject proto = nullptr); -extern bool -FindBody(JSContext* cx, HandleFunction fun, HandleLinearString src, size_t* bodyStart, - size_t* bodyEnd); - } // namespace js inline js::FunctionExtended* |