Implement the basic Promise (#1695)

Implement the Promise Constructor and routine: 'then' JerryScript-DCO-1.0-Signed-off-by: Zidong Jiang zidong.jiang@intel.com
2017-04-12 22:10:08 +08:00
parent 01fe5ab190
commit eb8dd4602b
23 changed files with 1579 additions and 40 deletions
@@ -191,6 +191,12 @@ OBJECT_VALUE (LIT_MAGIC_STRING_UINT8_CLAMPED_ARRAY_UL,
              ECMA_PROPERTY_CONFIGURABLE_WRITABLE)

 #endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */
+#ifndef CONFIG_DISABLE_ES2015_PROMISE_BUILTIN
+OBJECT_VALUE (LIT_MAGIC_STRING_PROMISE_UL,
+              ECMA_BUILTIN_ID_PROMISE,
+              ECMA_PROPERTY_CONFIGURABLE_WRITABLE)
+#endif /* !CONFIG_DISABLE_ES2015_PROMISE_BUILTIN */
+
 /* Routine properties:
 *  (property name, C routine name, arguments number or NON_FIXED, value of the routine's length property) */

@@ -0,0 +1,79 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ecma-exceptions.h"
+#include "ecma-globals.h"
+#include "ecma-helpers.h"
+#include "ecma-promise-object.h"
+
+#ifndef CONFIG_DISABLE_ES2015_PROMISE_BUILTIN
+
+#define ECMA_BUILTINS_INTERNAL
+#include "ecma-builtins-internal.h"
+
+#define BUILTIN_INC_HEADER_NAME "ecma-builtin-promise-prototype.inc.h"
+#define BUILTIN_UNDERSCORED_ID promise_prototype
+#include "ecma-builtin-internal-routines-template.inc.h"
+
+/** \addtogroup ecma ECMA
+ * @{
+ *
+ * \addtogroup ecmabuiltins
+ * @{
+ *
+ * \addtogroup promiseprototype ECMA Promise.prototype object built-in
+ * @{
+ */
+
+/**
+ * Promise routine: then.
+ *
+ * See also: 25.4.5.3
+ *
+ * @return ecma value of a new promise object
+ *         Returned value must be freed with ecma_free_value
+ */
+static ecma_value_t
+ecma_builtin_promise_prototype_then (ecma_value_t this_arg, /**< this argument */
+                                     ecma_value_t on_fulfilled, /**< on_fulfilled function */
+                                     ecma_value_t on_rejected) /**< on_rejected function */
+{
+  ecma_object_t *obj = ecma_get_object_from_value (this_arg);
+
+  if (!ecma_is_promise (obj))
+  {
+    return ecma_raise_type_error (ECMA_ERR_MSG ("'this' is not a Promise."));
+  }
+
+  ecma_value_t result_capability = ecma_promise_new_capability ();
+
+  if (ECMA_IS_VALUE_ERROR (result_capability))
+  {
+    return result_capability;
+  }
+
+  ecma_value_t ret = ecma_promise_then (this_arg, on_fulfilled, on_rejected, result_capability);
+  ecma_free_value (result_capability);
+
+  return ret;
+} /* ecma_builtin_promise_prototype_then */
+
+/**
+ * @}
+ * @}
+ * @}
+ */
+
+#endif /* !CONFIG_DISABLE_ES2015_PROMISE_BUILTIN */
@@ -0,0 +1,31 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ecma-builtin-helpers-macro-defines.inc.h"
+
+/* Object properties:
+ *  (property name, object pointer getter) */
+
+OBJECT_VALUE (LIT_MAGIC_STRING_CONSTRUCTOR,
+              ECMA_BUILTIN_ID_PROMISE,
+              ECMA_PROPERTY_CONFIGURABLE_WRITABLE)
+
+NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
+              1,
+              ECMA_PROPERTY_FLAG_WRITABLE)
+
+ROUTINE (LIT_MAGIC_STRING_THEN, ecma_builtin_promise_prototype_then, 2, 2)
+
+#include "ecma-builtin-helpers-macro-undefs.inc.h"
@@ -0,0 +1,83 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ecma-exceptions.h"
+#include "ecma-function-object.h"
+#include "ecma-globals.h"
+#include "ecma-promise-object.h"
+
+#ifndef CONFIG_DISABLE_ES2015_PROMISE_BUILTIN
+
+#define ECMA_BUILTINS_INTERNAL
+#include "ecma-builtins-internal.h"
+
+#define BUILTIN_INC_HEADER_NAME "ecma-builtin-promise.inc.h"
+#define BUILTIN_UNDERSCORED_ID promise
+#include "ecma-builtin-internal-routines-template.inc.h"
+
+/** \addtogroup ecma ECMA
+ * @{
+ *
+ * \addtogroup ecmabuiltins
+ * @{
+ *
+ * \addtogroup promise ECMA Promise object built-in
+ * @{
+ */
+
+/**
+ * Handle calling [[Call]] of built-in Promise object.
+ *
+ * ES2015 25.4.3 Promise is not intended to be called
+ * as a function and will throw an exception when called
+ * in that manner.
+ *
+ * @return ecma value
+ */
+ecma_value_t
+ecma_builtin_promise_dispatch_call (const ecma_value_t *arguments_list_p, /**< arguments list */
+                                    ecma_length_t arguments_list_len) /**< number of arguments */
+{
+  JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);
+
+  return ecma_raise_type_error (ECMA_ERR_MSG ("Constructor Promise requires 'new'."));
+} /* ecma_builtin_promise_dispatch_call */
+
+/**
+ * Handle calling [[Construct]] of built-in Promise object.
+ *
+ * @return ecma value
+ */
+ecma_value_t
+ecma_builtin_promise_dispatch_construct (const ecma_value_t *arguments_list_p, /**< arguments list */
+                                         ecma_length_t arguments_list_len) /**< number of arguments */
+{
+  JERRY_ASSERT (arguments_list_len == 0 || arguments_list_p != NULL);
+
+  if (arguments_list_len == 0 || !ecma_op_is_callable (arguments_list_p[0]))
+  {
+    return ecma_raise_type_error (ECMA_ERR_MSG ("First parameter must be callable."));
+  }
+
+  return ecma_op_create_promise_object (arguments_list_p[0], true);
+} /* ecma_builtin_promise_dispatch_construct */
+
+/**
+ * @}
+ * @}
+ * @}
+ */
+
+#endif /* !CONFIG_DISABLE_ES2015_PROMISE_BUILTIN */
@@ -0,0 +1,39 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Promose built-in description
+ */
+
+#include "ecma-builtin-helpers-macro-defines.inc.h"
+
+/* Number properties:
+ *  (property name, number value, writable, enumerable, configurable) */
+
+NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
+              1,
+              ECMA_PROPERTY_FIXED)
+
+/* Object properties:
+ *  (property name, object pointer getter) */
+
+OBJECT_VALUE (LIT_MAGIC_STRING_PROTOTYPE,
+              ECMA_BUILTIN_ID_PROMISE_PROTOTYPE,
+              ECMA_PROPERTY_FIXED)
+
+/* Routine properties:
+ *  (property name, C routine name, arguments number or NON_FIXED, value of the routine's length property) */
+
+#include "ecma-builtin-helpers-macro-undefs.inc.h"
@@ -462,6 +462,24 @@ BUILTIN (ECMA_BUILTIN_ID_UINT8CLAMPEDARRAY,

 #endif /* !CONFIG_DISABLE_ES2015_TYPEDARRAY_BUILTIN */

+#ifndef CONFIG_DISABLE_ES2015_PROMISE_BUILTIN
+
+BUILTIN (ECMA_BUILTIN_ID_PROMISE_PROTOTYPE,
+         ECMA_OBJECT_TYPE_GENERAL,
+         ECMA_BUILTIN_ID_OBJECT_PROTOTYPE,
+         true,
+         true,
+         promise_prototype)
+
+BUILTIN (ECMA_BUILTIN_ID_PROMISE,
+         ECMA_OBJECT_TYPE_FUNCTION,
+         ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE,
+         true,
+         true,
+         promise)
+
+#endif /* !CONFIG_DISABLE_ES2015_PROMISE_BUILTIN */
+
 /* The Global object (15.1) */
 BUILTIN (ECMA_BUILTIN_ID_GLOBAL,
         ECMA_OBJECT_TYPE_GENERAL,