diff --git a/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c b/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c index f93d86ff59..d6ec848e56 100644 --- a/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c +++ b/jerry-core/ecma/builtin-objects/typedarray/ecma-builtin-typedarray-prototype.c @@ -1891,7 +1891,7 @@ ecma_builtin_typedarray_prototype_copy_within (ecma_value_t this_arg, /**< this int32_t offset = (int32_t) (length - target); int32_t count = JERRY_MIN (distance, offset); - if (target >= length || start >= length || end == 0) + if (target >= length || end == 0 || start >= end) { return ecma_copy_value (this_arg); } diff --git a/tests/jerry/es2015/regression-test-issue-3107.js b/tests/jerry/es2015/regression-test-issue-3107.js new file mode 100644 index 0000000000..850a8fdc68 --- /dev/null +++ b/tests/jerry/es2015/regression-test-issue-3107.js @@ -0,0 +1,23 @@ +// 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. + +var arr = new Int8Array(200); +var result = arr.copyWithin(100, 14, 5); + +assert (arr === result); + +for (i = 0; i < 200; i++) +{ + assert (arr[i] === 0); +}