Add C API to query the type of a JS value (#2195)

New API function: * jerry_value_get_type JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.u-szeged@partner.samsung.com
2018-02-13 13:48:07 +01:00
parent 4652c3caaf
commit d7991ae54c
7 changed files with 266 additions and 41 deletions
@@ -0,0 +1,90 @@
+/* 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 "jerryscript.h"
+#include "jerryscript-port.h"
+#include "jerryscript-port-default.h"
+#include "test-common.h"
+
+typedef struct
+{
+  jerry_type_t type_info;
+  jerry_value_t value;
+} test_entry_t;
+
+#define ENTRY(TYPE, VALUE) { TYPE, VALUE }
+
+static jerry_value_t
+test_ext_function (const jerry_value_t function_obj, /**< function object */
+                   const jerry_value_t this_val, /**< function this value */
+                   const jerry_value_t args_p[], /**< array of arguments */
+                   const jerry_length_t args_cnt) /**< number of arguments */
+{
+  (void) function_obj;
+  (void) this_val;
+  (void) args_p;
+  (void) args_cnt;
+  return jerry_create_boolean (true);
+} /* test_ext_function */
+
+int
+main (void)
+{
+  TEST_INIT ();
+
+  jerry_init (JERRY_INIT_EMPTY);
+
+  jerry_char_t test_eval_function[] = "function demo(a) { return a + 1; }; demo";
+
+  test_entry_t entries[] =
+  {
+    ENTRY (JERRY_TYPE_NUMBER, jerry_create_number (-33.0)),
+    ENTRY (JERRY_TYPE_NUMBER, jerry_create_number (3)),
+    ENTRY (JERRY_TYPE_NUMBER, jerry_create_number_nan ()),
+    ENTRY (JERRY_TYPE_NUMBER, jerry_create_number_infinity (false)),
+    ENTRY (JERRY_TYPE_NUMBER, jerry_create_number_infinity (true)),
+
+    ENTRY (JERRY_TYPE_BOOLEAN, jerry_create_boolean (true)),
+    ENTRY (JERRY_TYPE_BOOLEAN, jerry_create_boolean (false)),
+
+    ENTRY (JERRY_TYPE_UNDEFINED, jerry_create_undefined ()),
+
+    ENTRY (JERRY_TYPE_OBJECT, jerry_create_object ()),
+    ENTRY (JERRY_TYPE_OBJECT, jerry_create_array (10)),
+    ENTRY (JERRY_TYPE_OBJECT, jerry_create_error (JERRY_ERROR_TYPE, (const jerry_char_t *) "error")),
+
+    ENTRY (JERRY_TYPE_NULL, jerry_create_null ()),
+
+    ENTRY (JERRY_TYPE_FUNCTION, jerry_eval (test_eval_function, strlen ((char *) test_eval_function), false)),
+    ENTRY (JERRY_TYPE_FUNCTION, jerry_create_external_function (test_ext_function)),
+
+    ENTRY (JERRY_TYPE_STRING, jerry_create_string (test_eval_function)),
+    ENTRY (JERRY_TYPE_STRING, jerry_create_string ((jerry_char_t *) "")),
+  };
+
+  for (size_t idx = 0; idx < sizeof (entries) / sizeof (entries[0]); idx++)
+  {
+    jerry_type_t type_info = jerry_value_get_type (entries[idx].value);
+
+    TEST_ASSERT (type_info != JERRY_TYPE_NONE);
+    TEST_ASSERT (type_info == entries[idx].type_info);
+
+    jerry_release_value (entries[idx].value);
+  }
+
+  jerry_cleanup ();
+
+  return 0;
+} /* main */