diff options
Diffstat (limited to 'node_modules/@webassemblyjs/ieee754/lib')
-rw-r--r-- | node_modules/@webassemblyjs/ieee754/lib/index.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/ieee754/lib/index.js b/node_modules/@webassemblyjs/ieee754/lib/index.js new file mode 100644 index 0000000..27b9e22 --- /dev/null +++ b/node_modules/@webassemblyjs/ieee754/lib/index.js @@ -0,0 +1,52 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +exports.encodeF32 = encodeF32; +exports.encodeF64 = encodeF64; +exports.decodeF32 = decodeF32; +exports.decodeF64 = decodeF64; +exports.DOUBLE_PRECISION_MANTISSA = exports.SINGLE_PRECISION_MANTISSA = exports.NUMBER_OF_BYTE_F64 = exports.NUMBER_OF_BYTE_F32 = void 0; + +var _ieee = require("@xtuc/ieee754"); + +/** + * According to https://webassembly.github.io/spec/binary/values.html#binary-float + * n = 32/8 + */ +var NUMBER_OF_BYTE_F32 = 4; +/** + * According to https://webassembly.github.io/spec/binary/values.html#binary-float + * n = 64/8 + */ + +exports.NUMBER_OF_BYTE_F32 = NUMBER_OF_BYTE_F32; +var NUMBER_OF_BYTE_F64 = 8; +exports.NUMBER_OF_BYTE_F64 = NUMBER_OF_BYTE_F64; +var SINGLE_PRECISION_MANTISSA = 23; +exports.SINGLE_PRECISION_MANTISSA = SINGLE_PRECISION_MANTISSA; +var DOUBLE_PRECISION_MANTISSA = 52; +exports.DOUBLE_PRECISION_MANTISSA = DOUBLE_PRECISION_MANTISSA; + +function encodeF32(v) { + var buffer = []; + (0, _ieee.write)(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); + return buffer; +} + +function encodeF64(v) { + var buffer = []; + (0, _ieee.write)(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); + return buffer; +} + +function decodeF32(bytes) { + var buffer = Buffer.from(bytes); + return (0, _ieee.read)(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); +} + +function decodeF64(bytes) { + var buffer = Buffer.from(bytes); + return (0, _ieee.read)(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); +}
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