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-rw-r--r--js/src/vm/CallAndConstruct.cpp170
1 files changed, 170 insertions, 0 deletions
diff --git a/js/src/vm/CallAndConstruct.cpp b/js/src/vm/CallAndConstruct.cpp
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+/* -*- Mode.h: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "js/CallAndConstruct.h"
+
+#include "mozilla/Assertions.h" // MOZ_ASSERT
+
+#include "jstypes.h" // JS_PUBLIC_API
+#include "gc/Zone.h" // js::Zone
+#include "js/Context.h" // AssertHeapIsIdle
+#include "js/friend/ErrorMessages.h" // JSMSG_*
+#include "js/RootingAPI.h" // JS::Rooted, JS::Handle, JS::MutableHandle
+#include "js/Value.h" // JS::Value, JS::*Value
+#include "js/ValueArray.h" // JS::HandleValueArray
+#include "vm/BytecodeUtil.h" // JSDVG_IGNORE_STACK
+#include "vm/Interpreter.h" // js::Call, js::Construct
+#include "vm/JSAtomUtils.h" // js::Atomize
+#include "vm/JSContext.h" // JSContext, CHECK_THREAD, ReportValueError
+#include "vm/JSObject.h" // JSObject
+#include "vm/Stack.h" // js::InvokeArgs, js::FillArgumentsFromArraylike, js::ConstructArgs
+#include "vm/StringType.h" // JSAtom
+
+#include "vm/JSAtomUtils-inl.h" // js::AtomToId
+#include "vm/JSContext-inl.h" // JSContext::check
+#include "vm/JSObject-inl.h" // js::IsConstructor
+#include "vm/ObjectOperations-inl.h" // js::GetProperty
+
+using namespace js;
+
+JS_PUBLIC_API bool JS::IsCallable(JSObject* obj) { return obj->isCallable(); }
+
+JS_PUBLIC_API bool JS::IsConstructor(JSObject* obj) {
+ return obj->isConstructor();
+}
+
+JS_PUBLIC_API bool JS_CallFunctionValue(JSContext* cx,
+ JS::Handle<JSObject*> obj,
+ JS::Handle<JS::Value> fval,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JS::Value> rval) {
+ MOZ_ASSERT(!cx->zone()->isAtomsZone());
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(obj, fval, args);
+
+ js::InvokeArgs iargs(cx);
+ if (!FillArgumentsFromArraylike(cx, iargs, args)) {
+ return false;
+ }
+
+ JS::Rooted<JS::Value> thisv(cx, JS::ObjectOrNullValue(obj));
+ return js::Call(cx, fval, thisv, iargs, rval);
+}
+
+JS_PUBLIC_API bool JS_CallFunction(JSContext* cx, JS::Handle<JSObject*> obj,
+ JS::Handle<JSFunction*> fun,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JS::Value> rval) {
+ MOZ_ASSERT(!cx->zone()->isAtomsZone());
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(obj, fun, args);
+
+ js::InvokeArgs iargs(cx);
+ if (!FillArgumentsFromArraylike(cx, iargs, args)) {
+ return false;
+ }
+
+ JS::Rooted<JS::Value> fval(cx, JS::ObjectValue(*fun));
+ JS::Rooted<JS::Value> thisv(cx, JS::ObjectOrNullValue(obj));
+ return js::Call(cx, fval, thisv, iargs, rval);
+}
+
+JS_PUBLIC_API bool JS_CallFunctionName(JSContext* cx, JS::Handle<JSObject*> obj,
+ const char* name,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JS::Value> rval) {
+ MOZ_ASSERT(!cx->zone()->isAtomsZone());
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(obj, args);
+
+ JSAtom* atom = Atomize(cx, name, strlen(name));
+ if (!atom) {
+ return false;
+ }
+
+ JS::Rooted<JS::Value> fval(cx);
+ JS::Rooted<jsid> id(cx, AtomToId(atom));
+ if (!GetProperty(cx, obj, obj, id, &fval)) {
+ return false;
+ }
+
+ js::InvokeArgs iargs(cx);
+ if (!FillArgumentsFromArraylike(cx, iargs, args)) {
+ return false;
+ }
+
+ JS::Rooted<JS::Value> thisv(cx, JS::ObjectOrNullValue(obj));
+ return js::Call(cx, fval, thisv, iargs, rval);
+}
+
+JS_PUBLIC_API bool JS::Call(JSContext* cx, JS::Handle<JS::Value> thisv,
+ JS::Handle<JS::Value> fval,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JS::Value> rval) {
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(thisv, fval, args);
+
+ js::InvokeArgs iargs(cx);
+ if (!FillArgumentsFromArraylike(cx, iargs, args)) {
+ return false;
+ }
+
+ return js::Call(cx, fval, thisv, iargs, rval);
+}
+
+JS_PUBLIC_API bool JS::Construct(JSContext* cx, JS::Handle<JS::Value> fval,
+ JS::Handle<JSObject*> newTarget,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JSObject*> objp) {
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(fval, newTarget, args);
+
+ if (!js::IsConstructor(fval)) {
+ ReportValueError(cx, JSMSG_NOT_CONSTRUCTOR, JSDVG_IGNORE_STACK, fval,
+ nullptr);
+ return false;
+ }
+
+ JS::Rooted<JS::Value> newTargetVal(cx, JS::ObjectValue(*newTarget));
+ if (!js::IsConstructor(newTargetVal)) {
+ ReportValueError(cx, JSMSG_NOT_CONSTRUCTOR, JSDVG_IGNORE_STACK,
+ newTargetVal, nullptr);
+ return false;
+ }
+
+ js::ConstructArgs cargs(cx);
+ if (!FillArgumentsFromArraylike(cx, cargs, args)) {
+ return false;
+ }
+
+ return js::Construct(cx, fval, cargs, newTargetVal, objp);
+}
+
+JS_PUBLIC_API bool JS::Construct(JSContext* cx, JS::Handle<JS::Value> fval,
+ const JS::HandleValueArray& args,
+ JS::MutableHandle<JSObject*> objp) {
+ AssertHeapIsIdle();
+ CHECK_THREAD(cx);
+ cx->check(fval, args);
+
+ if (!js::IsConstructor(fval)) {
+ ReportValueError(cx, JSMSG_NOT_CONSTRUCTOR, JSDVG_IGNORE_STACK, fval,
+ nullptr);
+ return false;
+ }
+
+ js::ConstructArgs cargs(cx);
+ if (!FillArgumentsFromArraylike(cx, cargs, args)) {
+ return false;
+ }
+
+ return js::Construct(cx, fval, cargs, fval, objp);
+}