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63 lines
2.7 KiB
JavaScript
63 lines
2.7 KiB
JavaScript
// Copyright (C) 2017 Igalia, S.L. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-bigint-parseint-string-radix
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description: Negative binary argument with radix 2
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info: >
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BigInt.parseInt ( string, radix )
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The parseInt function produces a BigInt value dictated by
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interpretation of the contents of the string argument according to
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the specified radix.
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The algorithm is the same as 18.2.5 but with the following edits:
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* For all cases which result in returning NaN, throw a SyntaxError
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exception.
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* For all cases which result in returning -0, return 0n.
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* Replace the second to last step, which casts mathInt to a Number,
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with casting mathInt to a BigInt.
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18.2.5 parseInt ( string, radix )
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The parseInt function produces an integer value dictated by
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interpretation of the contents of the string argument according to
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the specified radix. Leading white space in string is ignored. If
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radix is undefined or 0, it is assumed to be 10 except when the
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number begins with the code unit pairs 0x or 0X, in which case a
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radix of 16 is assumed. If radix is 16, the number may also
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optionally begin with the code unit pairs 0x or 0X.
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The parseInt function is the %parseInt% intrinsic object. When the
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parseInt function is called, the following steps are taken:
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[...]
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4. If S is not empty and the first code unit of S is the code unit
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0x002D (HYPHEN-MINUS), let sign be -1.
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[...]
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16. Return sign × number.
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features: [BigInt]
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---*/
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assert.sameValue(BigInt.parseInt("-1", 2), -1n);
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assert.sameValue(BigInt.parseInt("-11", 2), -3n);
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assert.sameValue(BigInt.parseInt("-111", 2), -7n);
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assert.sameValue(BigInt.parseInt("-1111", 2), -15n);
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assert.sameValue(BigInt.parseInt("-11111", 2), -31n);
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assert.sameValue(BigInt.parseInt("-111111", 2), -63n);
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assert.sameValue(BigInt.parseInt("-1111111", 2), -127n);
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assert.sameValue(BigInt.parseInt("-11111111", 2), -255n);
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assert.sameValue(BigInt.parseInt("-111111111", 2), -511n);
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assert.sameValue(BigInt.parseInt("-1111111111", 2), -1023n);
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assert.sameValue(BigInt.parseInt("-11111111111", 2), -2047n);
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assert.sameValue(BigInt.parseInt("-111111111111", 2), -4095n);
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assert.sameValue(BigInt.parseInt("-1111111111111", 2), -8191n);
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assert.sameValue(BigInt.parseInt("-11111111111111", 2), -16383n);
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assert.sameValue(BigInt.parseInt("-111111111111111", 2), -32767n);
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assert.sameValue(BigInt.parseInt("-1111111111111111", 2), -65535n);
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assert.sameValue(BigInt.parseInt("-11111111111111111", 2), -131071n);
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assert.sameValue(BigInt.parseInt("-111111111111111111", 2), -262143n);
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assert.sameValue(BigInt.parseInt("-1111111111111111111", 2), -524287n);
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assert.sameValue(BigInt.parseInt("-11111111111111111111", 2), -1048575n);
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