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authorGaming4JC <g4jc@hyperbola.info>2019-12-13 20:21:05 -0500
committerGaming4JC <g4jc@hyperbola.info>2019-12-17 06:25:23 -0500
commit1fd726c6b04faacbb49c525ec733d9419ab65a84 (patch)
treed54920d325913c2a190f36ddab7171cf70f0bf08 /js/src/vm
parentcb732e5fdda3528f18aee6a761354fe8c1b7c274 (diff)
downloaduxp-1fd726c6b04faacbb49c525ec733d9419ab65a84.tar.gz
Bug 1336705 - Part 2: Add self-hosting intrinsics for resolving/rejecting Promises and adding reactions.
Tag #1287
Diffstat (limited to 'js/src/vm')
-rw-r--r--js/src/vm/SelfHosting.cpp108
1 files changed, 108 insertions, 0 deletions
diff --git a/js/src/vm/SelfHosting.cpp b/js/src/vm/SelfHosting.cpp
index ffd707b147..e5d97c7681 100644
--- a/js/src/vm/SelfHosting.cpp
+++ b/js/src/vm/SelfHosting.cpp
@@ -27,6 +27,7 @@
#include "builtin/MapObject.h"
#include "builtin/ModuleObject.h"
#include "builtin/Object.h"
+#include "builtin/Promise.h"
#include "builtin/Reflect.h"
#include "builtin/SelfHostingDefines.h"
#include "builtin/SIMD.h"
@@ -2135,6 +2136,105 @@ intrinsic_PromiseResolve(JSContext* cx, unsigned argc, Value* vp)
return true;
}
+static bool
+intrinsic_CreatePendingPromise(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() == 0);
+ RootedObject promise(cx, PromiseObject::createSkippingExecutor(cx));
+ if (!promise)
+ return false;
+ args.rval().setObject(*promise);
+ return true;
+}
+
+static bool
+intrinsic_CreatePromiseResolvedWith(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() == 1);
+ RootedObject promise(cx, PromiseObject::unforgeableResolve(cx, args[0]));
+ if (!promise)
+ return false;
+ args.rval().setObject(*promise);
+ return true;
+}
+
+static bool
+intrinsic_CreatePromiseRejectedWith(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() == 1);
+ RootedObject promise(cx, PromiseObject::unforgeableReject(cx, args[0]));
+ if (!promise)
+ return false;
+ args.rval().setObject(*promise);
+ return true;
+}
+
+static bool
+intrinsic_ResolvePromise(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() == 2);
+ Rooted<PromiseObject*> promise(cx, &args[0].toObject().as<PromiseObject>());
+ if (!PromiseObject::resolve(cx, promise, args[1]))
+ return false;
+ args.rval().setUndefined();
+ return true;
+}
+
+static bool
+intrinsic_RejectPromise(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() == 2);
+ Rooted<PromiseObject*> promise(cx, &args[0].toObject().as<PromiseObject>());
+ if (!PromiseObject::reject(cx, promise, args[1]))
+ return false;
+ args.rval().setUndefined();
+ return true;
+}
+
+static bool
+intrinsic_CallOriginalPromiseThen(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() >= 2);
+
+ RootedObject promise(cx, &args[0].toObject());
+ Value val = args[1];
+ RootedObject onResolvedObj(cx, val.isUndefined() ? nullptr : val.toObjectOrNull());
+ val = args.get(2);
+ RootedObject onRejectedObj(cx, val.isUndefined() ? nullptr : val.toObjectOrNull());
+
+ RootedObject resultPromise(cx, JS::CallOriginalPromiseThen(cx, promise, onResolvedObj,
+ onRejectedObj));
+ if (!resultPromise)
+ return false;
+ args.rval().setObject(*resultPromise);
+ return true;
+}
+
+static bool
+intrinsic_AddPromiseReactions(JSContext* cx, unsigned argc, Value* vp)
+{
+ CallArgs args = CallArgsFromVp(argc, vp);
+ MOZ_ASSERT(args.length() >= 2);
+
+ RootedObject promise(cx, &args[0].toObject());
+ Value val = args[1];
+ RootedObject onResolvedObj(cx, val.isUndefined() ? nullptr : val.toObjectOrNull());
+ val = args.get(2);
+ RootedObject onRejectedObj(cx, val.isUndefined() ? nullptr : val.toObjectOrNull());
+
+ bool result = JS::AddPromiseReactions(cx, promise, onResolvedObj, onRejectedObj);
+ if (!result)
+ return false;
+ args.rval().setUndefined();
+ return true;
+}
+
// The self-hosting global isn't initialized with the normal set of builtins.
// Instead, individual C++-implemented functions that're required by
// self-hosted code are defined as global functions. Accessing these
@@ -2536,6 +2636,14 @@ static const JSFunctionSpec intrinsic_functions[] = {
JS_FN("AddModuleNamespaceBinding", intrinsic_AddModuleNamespaceBinding, 4, 0),
JS_FN("ModuleNamespaceExports", intrinsic_ModuleNamespaceExports, 1, 0),
+ JS_FN("CreatePendingPromise", intrinsic_CreatePendingPromise, 0, 0),
+ JS_FN("CreatePromiseResolvedWith", intrinsic_CreatePromiseResolvedWith, 1, 0),
+ JS_FN("CreatePromiseRejectedWith", intrinsic_CreatePromiseRejectedWith, 1, 0),
+ JS_FN("ResolvePromise", intrinsic_ResolvePromise, 2, 0),
+ JS_FN("RejectPromise", intrinsic_RejectPromise, 2, 0),
+ JS_FN("AddPromiseReactions", intrinsic_AddPromiseReactions, 3, 0),
+ JS_FN("CallOriginalPromiseThen", intrinsic_CallOriginalPromiseThen, 3, 0),
+
JS_FN("IsPromiseObject", intrinsic_IsInstanceOfBuiltin<PromiseObject>, 1, 0),
JS_FN("CallPromiseMethodIfWrapped", CallNonGenericSelfhostedMethod<Is<PromiseObject>>, 2, 0),
JS_FN("PromiseResolve", intrinsic_PromiseResolve, 2, 0),