72 lines
2.7 KiB
TypeScript
72 lines
2.7 KiB
TypeScript
// @target: esnext
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// All bases should allow "n" suffix
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const bin = 0b101, binBig = 0b101n; // 5, 5n
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const oct = 0o567, octBig = 0o567n; // 375, 375n
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const hex = 0xC0B, hexBig = 0xC0Bn; // 3083, 3083n
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const dec = 123, decBig = 123n;
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// Test literals whose values overflow a 53-bit integer
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// These should be represented exactly in the emitted JS
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const largeBin = 0b10101010101010101010101010101010101010101010101010101010101n; // 384307168202282325n
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const largeOct = 0o123456712345671234567n; // 1505852261029722487n
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const largeDec = 12345678091234567890n;
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const largeHex = 0x1234567890abcdefn; // 1311768467294899695n
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// Test literals with separators
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const separatedBin = 0b010_10_1n; // 21n
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const separatedOct = 0o1234_567n; // 342391n
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const separatedDec = 123_456_789n;
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const separatedHex = 0x0_abcdefn; // 11259375n
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// Test parsing literals of different bit sizes
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// to ensure that parsePseudoBigInt() allocates enough space
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const zero = 0b0n;
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const oneBit = 0b1n;
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const twoBit = 0b11n; // 3n
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const threeBit = 0b111n; // 7n
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const fourBit = 0b1111n; // 15n
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const fiveBit = 0b11111n; // 31n
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const sixBit = 0b111111n; // 63n
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const sevenBit = 0b1111111n; // 127n
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const eightBit = 0b11111111n; // 255n
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const nineBit = 0b111111111n; // 511n
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const tenBit = 0b1111111111n; // 1023n
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const elevenBit = 0b11111111111n; // 2047n
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const twelveBit = 0b111111111111n; // 4095n
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const thirteenBit = 0b1111111111111n; // 8191n
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const fourteenBit = 0b11111111111111n; // 16383n
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const fifteenBit = 0b111111111111111n; // 32767n
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const sixteenBit = 0b1111111111111111n; // 65535n
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const seventeenBit = 0b11111111111111111n; // 131071n
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// Test negative literals
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const neg = -123n;
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const negHex: -16n = -0x10n;
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// Test normalization of bigints -- all of these should succeed
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const negZero: 0n = -0n;
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const baseChange: 255n = 0xFFn;
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const leadingZeros: 0xFFn = 0x000000FFn;
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// Plus not allowed on literals
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const unaryPlus = +123n;
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const unaryPlusHex = +0x123n;
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// Parsing errors
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// In separate blocks because they each declare an "n" variable
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{ const legacyOct = 0123n; }
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{ const scientific = 1e2n; }
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{ const decimal = 4.1n; }
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{ const leadingDecimal = .1n; }
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const emptyBinary = 0bn; // should error but infer 0n
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const emptyOct = 0on; // should error but infer 0n
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const emptyHex = 0xn; // should error but infer 0n
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const leadingSeparator = _123n;
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const trailingSeparator = 123_n;
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const doubleSeparator = 123_456__789n;
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// Using literals as types
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const oneTwoOrThree = (x: 1n | 2n | 3n): bigint => x ** 2n;
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oneTwoOrThree(0n); oneTwoOrThree(1n); oneTwoOrThree(2n); oneTwoOrThree(3n);
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oneTwoOrThree(0); oneTwoOrThree(1); oneTwoOrThree(2); oneTwoOrThree(3); |