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Diffstat (limited to 'node_modules/typedarray-to-buffer/index.js')
-rw-r--r-- | node_modules/typedarray-to-buffer/index.js | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/node_modules/typedarray-to-buffer/index.js b/node_modules/typedarray-to-buffer/index.js new file mode 100644 index 0000000..5fa394d --- /dev/null +++ b/node_modules/typedarray-to-buffer/index.js @@ -0,0 +1,25 @@ +/** + * Convert a typed array to a Buffer without a copy + * + * Author: Feross Aboukhadijeh <https://feross.org> + * License: MIT + * + * `npm install typedarray-to-buffer` + */ + +var isTypedArray = require('is-typedarray').strict + +module.exports = function typedarrayToBuffer (arr) { + if (isTypedArray(arr)) { + // To avoid a copy, use the typed array's underlying ArrayBuffer to back new Buffer + var buf = Buffer.from(arr.buffer) + if (arr.byteLength !== arr.buffer.byteLength) { + // Respect the "view", i.e. byteOffset and byteLength, without doing a copy + buf = buf.slice(arr.byteOffset, arr.byteOffset + arr.byteLength) + } + return buf + } else { + // Pass through all other types to `Buffer.from` + return Buffer.from(arr) + } +} |