Add missing BigInt type for value type query API (#4362)

Extended the `jerry_type_t` enum with `JERRY_TYPE_BIGINT` and added it to
the `jerry_value_get_type`.

JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com

docs/02.API-REFERENCE.md

@@ -27,9 +27,12 @@ Enum that contains JerryScript API value types:
  - JERRY_TYPE_FUNCTION - function type
  - JERRY_TYPE_ERROR - error/abort type
  - JERRY_TYPE_SYMBOL - symbol type
+ - JERRY_TYPE_BIGINT - bigint type
 
 *New in version 2.0*.
 
+*Changed in [[NEXT_RELEASE]]*: Added `JERRY_TYPE_BIGINT` value.
+
 ## jerry_object_type_t
 
 Enum that contains JerryScript **object** value types:

jerry-core/api/jerry.c

@@ -985,6 +985,12 @@ jerry_value_get_type (const jerry_value_t value) /**< input value to check */
     {
       return JERRY_TYPE_FUNCTION;
     }
+#if ENABLED (JERRY_BUILTIN_BIGINT)
+    case LIT_MAGIC_STRING_BIGINT:
+    {
+      return JERRY_TYPE_BIGINT;
+    }
+#endif /* ENABLED (JERRY_BUILTIN_BIGINT) */
     default:
     {
       JERRY_ASSERT (lit_id == LIT_MAGIC_STRING_OBJECT);

jerry-core/include/jerryscript-core.h

@@ -411,6 +411,7 @@ typedef enum
   JERRY_TYPE_FUNCTION,  /**< function type */
   JERRY_TYPE_ERROR,     /**< error/abort type */
   JERRY_TYPE_SYMBOL,    /**< symbol type */
+  JERRY_TYPE_BIGINT,    /**< bigint type */
 } jerry_type_t;
 
 /**

tests/unit-core/test-api-value-type.c

@@ -99,6 +99,31 @@ main (void)
     jerry_release_value (symbol_desc_value);
   }
 
+  if (jerry_is_feature_enabled (JERRY_FEATURE_BIGINT))
+  {
+    /* Check simple bigint value type */
+    uint64_t digits_buffer[2] = { 1, 0 };
+    jerry_value_t value_bigint = jerry_create_bigint (digits_buffer, 2, false);
+    jerry_type_t value_type_info = jerry_value_get_type (value_bigint);
+
+    TEST_ASSERT (value_type_info != JERRY_TYPE_NONE);
+    TEST_ASSERT (value_type_info == JERRY_TYPE_BIGINT);
+
+    jerry_release_value (value_bigint);
+
+    /* Check bigint wrapped in object type */
+    jerry_char_t object_bigint_src[] = "Object(5n)";
+    jerry_value_t object_bigint = jerry_eval (object_bigint_src, sizeof (object_bigint_src) - 1, JERRY_PARSE_NO_OPTS);
+    TEST_ASSERT (!jerry_value_is_error (object_bigint));
+
+    jerry_type_t object_type_info = jerry_value_get_type (object_bigint);
+
+    TEST_ASSERT (object_type_info != JERRY_TYPE_NONE);
+    TEST_ASSERT (object_type_info == JERRY_TYPE_OBJECT);
+
+    jerry_release_value (object_bigint);
+  }
+
   jerry_cleanup ();
 
   return 0;