| # Copyright 2006-2009 the V8 project authors. All rights reserved. |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: |
| # |
| # * Redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer. |
| # * Redistributions in binary form must reproduce the above |
| # copyright notice, this list of conditions and the following |
| # disclaimer in the documentation and/or other materials provided |
| # with the distribution. |
| # * Neither the name of Google Inc. nor the names of its |
| # contributors may be used to endorse or promote products derived |
| # from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| # Dictionary that is passed as defines for js2c.py. |
| # Used for defines that must be defined for all native JS files. |
| |
| define NONE = 0; |
| define READ_ONLY = 1; |
| define DONT_ENUM = 2; |
| define DONT_DELETE = 4; |
| |
| # 2^53 - 1 |
| define kMaxSafeInteger = 9007199254740991; |
| |
| # 2^32 - 1 |
| define kMaxUint32 = 4294967295; |
| |
| # Type query macros. |
| # |
| # Note: We have special support for typeof(foo) === 'bar' in the compiler. |
| # It will *not* generate a runtime typeof call for the most important |
| # values of 'bar'. |
| macro IS_ARRAY(arg) = (%_IsArray(arg)); |
| macro IS_ARRAYBUFFER(arg) = (%_ClassOf(arg) === 'ArrayBuffer'); |
| macro IS_BOOLEAN(arg) = (typeof(arg) === 'boolean'); |
| macro IS_DATE(arg) = (%IsDate(arg)); |
| macro IS_ERROR(arg) = (%_ClassOf(arg) === 'Error'); |
| macro IS_FUNCTION(arg) = (%IsFunction(arg)); |
| macro IS_GENERATOR(arg) = (%_ClassOf(arg) === 'Generator'); |
| macro IS_MAP(arg) = (%_IsJSMap(arg)); |
| macro IS_MAP_ITERATOR(arg) = (%_ClassOf(arg) === 'Map Iterator'); |
| macro IS_NULL(arg) = (arg === null); |
| macro IS_NULL_OR_UNDEFINED(arg) = (arg == null); |
| macro IS_NUMBER(arg) = (typeof(arg) === 'number'); |
| macro IS_OBJECT(arg) = (typeof(arg) === 'object'); |
| macro IS_PROXY(arg) = (%_IsJSProxy(arg)); |
| macro IS_SCRIPT(arg) = (%_ClassOf(arg) === 'Script'); |
| macro IS_SET(arg) = (%_IsJSSet(arg)); |
| macro IS_SET_ITERATOR(arg) = (%_ClassOf(arg) === 'Set Iterator'); |
| macro IS_SHAREDARRAYBUFFER(arg) = (%_ClassOf(arg) === 'SharedArrayBuffer'); |
| macro IS_STRING(arg) = (typeof(arg) === 'string'); |
| macro IS_SYMBOL(arg) = (typeof(arg) === 'symbol'); |
| macro IS_TYPEDARRAY(arg) = (%_IsTypedArray(arg)); |
| macro IS_UNDEFINED(arg) = (arg === (void 0)); |
| macro IS_WEAKMAP(arg) = (%_IsJSWeakMap(arg)); |
| macro IS_WEAKSET(arg) = (%_IsJSWeakSet(arg)); |
| |
| # Macro for ES queries of the type: "Type(O) is Object." |
| macro IS_RECEIVER(arg) = (%_IsJSReceiver(arg)); |
| |
| # Macro for ES queries of the type: "IsCallable(O)" |
| macro IS_CALLABLE(arg) = (typeof(arg) === 'function'); |
| |
| # Macro for ES6 CheckObjectCoercible |
| # Will throw a TypeError of the form "[functionName] called on null or undefined". |
| macro CHECK_OBJECT_COERCIBLE(arg, functionName) = if (IS_NULL(%IS_VAR(arg)) || IS_UNDEFINED(arg)) throw %make_type_error(kCalledOnNullOrUndefined, functionName); |
| |
| # Inline macros. Use %IS_VAR to make sure arg is evaluated only once. |
| macro NUMBER_IS_NAN(arg) = (%IS_VAR(arg) !== arg); |
| macro NUMBER_IS_FINITE(arg) = (%_IsSmi(%IS_VAR(arg)) || ((arg == arg) && (arg != 1/0) && (arg != -1/0))); |
| macro TO_BOOLEAN(arg) = (!!(arg)); |
| macro TO_INTEGER(arg) = (%_ToInteger(arg)); |
| macro INVERT_NEG_ZERO(arg) = ((arg) + 0); |
| macro TO_LENGTH(arg) = (%_ToLength(arg)); |
| macro TO_STRING(arg) = (%_ToString(arg)); |
| macro TO_NUMBER(arg) = (%_ToNumber(arg)); |
| macro TO_OBJECT(arg) = (%_ToObject(arg)); |
| macro HAS_OWN_PROPERTY(obj, key) = (%_Call(ObjectHasOwnProperty, obj, key)); |
| |
| # Private names. |
| macro GET_PRIVATE(obj, sym) = (obj[sym]); |
| macro SET_PRIVATE(obj, sym, val) = (obj[sym] = val); |
| |
| # To avoid ES2015 Function name inference. |
| macro ANONYMOUS_FUNCTION(fn) = (0, (fn)); |
| |
| macro DEFINE_METHODS_LEN(obj, class_def, len) = %DefineMethodsInternal(obj, class class_def, len); |
| macro DEFINE_METHOD_LEN(obj, method_def, len) = %DefineMethodsInternal(obj, class { method_def }, len); |
| macro DEFINE_METHODS(obj, class_def) = DEFINE_METHODS_LEN(obj, class_def, -1); |
| macro DEFINE_METHOD(obj, method_def) = DEFINE_METHOD_LEN(obj, method_def, -1); |
| |
| # Constants. The compiler constant folds them. |
| define INFINITY = (1/0); |
| define UNDEFINED = (void 0); |
| |
| # Must match PropertyFilter in property-details.h |
| define PROPERTY_FILTER_NONE = 0; |
| |
| # Check whether debug is active. |
| define DEBUG_IS_ACTIVE = (%_DebugIsActive() != 0); |