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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
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Diffstat (limited to 'node_modules/@webassemblyjs/helper-buffer/lib/index.js')
-rw-r--r--node_modules/@webassemblyjs/helper-buffer/lib/index.js78
1 files changed, 78 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/helper-buffer/lib/index.js b/node_modules/@webassemblyjs/helper-buffer/lib/index.js
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index 0000000..b735b1f
--- /dev/null
+++ b/node_modules/@webassemblyjs/helper-buffer/lib/index.js
@@ -0,0 +1,78 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.overrideBytesInBuffer = overrideBytesInBuffer;
+exports.makeBuffer = makeBuffer;
+exports.fromHexdump = fromHexdump;
+
+function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
+
+function concatUint8Arrays() {
+ for (var _len = arguments.length, arrays = new Array(_len), _key = 0; _key < _len; _key++) {
+ arrays[_key] = arguments[_key];
+ }
+
+ var totalLength = arrays.reduce(function (a, b) {
+ return a + b.length;
+ }, 0);
+ var result = new Uint8Array(totalLength);
+ var offset = 0;
+
+ for (var _i = 0; _i < arrays.length; _i++) {
+ var arr = arrays[_i];
+
+ if (arr instanceof Uint8Array === false) {
+ throw new Error("arr must be of type Uint8Array");
+ }
+
+ result.set(arr, offset);
+ offset += arr.length;
+ }
+
+ return result;
+}
+
+function overrideBytesInBuffer(buffer, startLoc, endLoc, newBytes) {
+ var beforeBytes = buffer.slice(0, startLoc);
+ var afterBytes = buffer.slice(endLoc, buffer.length); // replacement is empty, we can omit it
+
+ if (newBytes.length === 0) {
+ return concatUint8Arrays(beforeBytes, afterBytes);
+ }
+
+ var replacement = Uint8Array.from(newBytes);
+ return concatUint8Arrays(beforeBytes, replacement, afterBytes);
+}
+
+function makeBuffer() {
+ for (var _len2 = arguments.length, splitedBytes = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+ splitedBytes[_key2] = arguments[_key2];
+ }
+
+ var bytes = [].concat.apply([], splitedBytes);
+ return new Uint8Array(bytes).buffer;
+}
+
+function fromHexdump(str) {
+ var lines = str.split("\n"); // remove any leading left whitespace
+
+ lines = lines.map(function (line) {
+ return line.trim();
+ });
+ var bytes = lines.reduce(function (acc, line) {
+ var cols = line.split(" "); // remove the offset, left column
+
+ cols.shift();
+ cols = cols.filter(function (x) {
+ return x !== "";
+ });
+ var bytes = cols.map(function (x) {
+ return parseInt(x, 16);
+ });
+ acc.push.apply(acc, _toConsumableArray(bytes));
+ return acc;
+ }, []);
+ return Buffer.from(bytes);
+} \ No newline at end of file