Péter Gál
4e8d6344a8
During the execution of the TypedArray filter method it is possible to have a different sized output TypedArray than the input one. When copying the data to the output array the values must be correctly converted to the output TypedArray's value range. Fixes: #4793 JerryScript-DCO-1.0-Signed-off-by: Peter Gal pgal.usz@partner.samsung.com
43 lines
1.6 KiB
JavaScript
43 lines
1.6 KiB
JavaScript
// Copyright JS Foundation and other contributors, http://js.foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Make sure that TypedArray filter correctly copies the data (avoid overflow).
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// Test creates a smaller region for "output" TypedArray.
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// Last number is intentionally a "big" float.
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var big_array = new Float64Array([0.523565555, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 333333232134.1]);
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big_array.constructor = Float32Array;
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var result_float32_array = big_array.filter(x => x % 2 == 0);
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assert(result_float32_array instanceof Float32Array);
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assert(result_float32_array.length === 5);
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// Create an even smaller result TypedArray.
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big_array.constructor = Uint8Array;
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var result_uint8_array = big_array.filter(x => x % 3 == 0);
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assert(result_uint8_array instanceof Uint8Array);
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assert(result_uint8_array.length === 3);
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// Trigger a filter error when at the last element
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try {
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big_array.filter(function(x, idx) {
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if (idx > 10) {
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throw new Error("Error test magic");
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}
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return x % 4 == 0;
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});
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} catch (ex) {
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assert(ex instanceof Error);
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assert(ex.message === "Error test magic");
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}
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