36 lines
1.4 KiB
JavaScript
36 lines
1.4 KiB
JavaScript
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// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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// Flags: --enable-experimental-regexp-engine
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// Flags: --no-default-to-experimental-regexp-engine
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// Flags: --no-force-slow-path
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// We shouldn't assign the experimental engine to regexps without 'l' flag.
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assertNotEquals("EXPERIMENTAL", %RegexpTypeTag(/asdf/));
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assertNotEquals("EXPERIMENTAL", %RegexpTypeTag(/123|asdf/));
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assertNotEquals("EXPERIMENTAL", %RegexpTypeTag(/(a*)*x/));
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assertNotEquals("EXPERIMENTAL", %RegexpTypeTag(/(a*)\1/));
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// We should assign the experimental engine to regexps with 'l' flag.
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assertEquals("EXPERIMENTAL", %RegexpTypeTag(/asdf/l));
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assertEquals("EXPERIMENTAL", %RegexpTypeTag(/123|asdf/l));
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assertEquals("EXPERIMENTAL", %RegexpTypeTag(/(a*)*x/l));
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// We should throw if a regexp with 'l' flag can't be handled by the
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// experimental engine.
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assertThrows(() => /(a*)\1/l, SyntaxError);
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// The flags field of a regexp should be sorted.
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assertEquals("glmsy", (/asdf/lymsg).flags);
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// The 'linear' member should be set according to the linear flag.
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assertTrue((/asdf/lymsg).linear);
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assertFalse((/asdf/ymsg).linear);
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// The new fields installed on the regexp prototype map shouldn't make
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// unmodified regexps slow.
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assertTrue(%RegexpIsUnmodified(/asdf/));
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assertTrue(%RegexpIsUnmodified(/asdf/l));
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