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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 (function(global, utils) {
      6 
      7 "use strict";
      8 
      9 %CheckIsBootstrapping();
     10 
     11 // -------------------------------------------------------------------
     12 // Imports
     13 
     14 // array.js has to come before typedarray.js for this to work
     15 var ArrayToString = utils.ImportNow("ArrayToString");
     16 var InnerArrayJoin;
     17 var InnerArrayToLocaleString;
     18 
     19 macro TYPED_ARRAYS(FUNCTION)
     20 FUNCTION(Uint8Array, 1)
     21 FUNCTION(Int8Array, 1)
     22 FUNCTION(Uint16Array, 2)
     23 FUNCTION(Int16Array, 2)
     24 FUNCTION(Uint32Array, 4)
     25 FUNCTION(Int32Array, 4)
     26 FUNCTION(Float32Array, 4)
     27 FUNCTION(Float64Array, 8)
     28 FUNCTION(Uint8ClampedArray, 1)
     29 FUNCTION(BigUint64Array, 8)
     30 FUNCTION(BigInt64Array, 8)
     31 endmacro
     32 
     33 macro DECLARE_GLOBALS(NAME, SIZE)
     34 var GlobalNAME = global.NAME;
     35 endmacro
     36 
     37 TYPED_ARRAYS(DECLARE_GLOBALS)
     38 
     39 macro IS_TYPEDARRAY(arg)
     40 (%_IsTypedArray(arg))
     41 endmacro
     42 
     43 var GlobalTypedArray = %object_get_prototype_of(GlobalUint8Array);
     44 
     45 utils.Import(function(from) {
     46   InnerArrayJoin = from.InnerArrayJoin;
     47   InnerArrayToLocaleString = from.InnerArrayToLocaleString;
     48 });
     49 
     50 // --------------- Typed Arrays ---------------------
     51 
     52 // ES6 section 22.2.3.5.1 ValidateTypedArray ( O )
     53 function ValidateTypedArray(array, methodName) {
     54   if (!IS_TYPEDARRAY(array)) throw %make_type_error(kNotTypedArray);
     55 
     56   if (%ArrayBufferViewWasNeutered(array))
     57     throw %make_type_error(kDetachedOperation, methodName);
     58 }
     59 
     60 
     61 // ES6 section 22.2.3.27
     62 // ecma402 #sup-array.prototype.tolocalestring
     63 DEFINE_METHOD(
     64   GlobalTypedArray.prototype,
     65   toLocaleString() {
     66     ValidateTypedArray(this, "%TypedArray%.prototype.toLocaleString");
     67 
     68     var locales = arguments[0];
     69     var options = arguments[1];
     70     var length = %TypedArrayGetLength(this);
     71     return InnerArrayToLocaleString(this, length, locales, options);
     72   }
     73 );
     74 
     75 
     76 // ES6 section 22.2.3.14
     77 DEFINE_METHOD(
     78   GlobalTypedArray.prototype,
     79   join(separator) {
     80     ValidateTypedArray(this, "%TypedArray%.prototype.join");
     81 
     82     var length = %TypedArrayGetLength(this);
     83 
     84     return InnerArrayJoin(separator, this, length);
     85   }
     86 );
     87 
     88 // -------------------------------------------------------------------
     89 
     90 %AddNamedProperty(GlobalTypedArray.prototype, "toString", ArrayToString,
     91                   DONT_ENUM);
     92 
     93 })
     94