1 files changed, 164 insertions, 0 deletions
diff --git a/chromium/third_party/node/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs b/chromium/third_party/node/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs
new file mode 100644
index 00000000000..3dff372170b
--- /dev/null
+++ b/chromium/third_party/node/node_modules/@jridgewell/sourcemap-codec/dist/sourcemap-codec.mjs
@@ -0,0 +1,164 @@
+const comma = ','.charCodeAt(0);
+const semicolon = ';'.charCodeAt(0);
+const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+const intToChar = new Uint8Array(64); // 64 possible chars.
+const charToInt = new Uint8Array(128); // z is 122 in ASCII
+for (let i = 0; i < chars.length; i++) {
+    const c = chars.charCodeAt(i);
+    intToChar[i] = c;
+    charToInt[c] = i;
+}
+// Provide a fallback for older environments.
+const td = typeof TextDecoder !== 'undefined'
+    ? /* #__PURE__ */ new TextDecoder()
+    : typeof Buffer !== 'undefined'
+        ? {
+            decode(buf) {
+                const out = Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
+                return out.toString();
+            },
+        }
+        : {
+            decode(buf) {
+                let out = '';
+                for (let i = 0; i < buf.length; i++) {
+                    out += String.fromCharCode(buf[i]);
+                }
+                return out;
+            },
+        };
+function decode(mappings) {
+    const state = new Int32Array(5);
+    const decoded = [];
+    let index = 0;
+    do {
+        const semi = indexOf(mappings, index);
+        const line = [];
+        let sorted = true;
+        let lastCol = 0;
+        state[0] = 0;
+        for (let i = index; i < semi; i++) {
+            let seg;
+            i = decodeInteger(mappings, i, state, 0); // genColumn
+            const col = state[0];
+            if (col < lastCol)
+                sorted = false;
+            lastCol = col;
+            if (hasMoreVlq(mappings, i, semi)) {
+                i = decodeInteger(mappings, i, state, 1); // sourcesIndex
+                i = decodeInteger(mappings, i, state, 2); // sourceLine
+                i = decodeInteger(mappings, i, state, 3); // sourceColumn
+                if (hasMoreVlq(mappings, i, semi)) {
+                    i = decodeInteger(mappings, i, state, 4); // namesIndex
+                    seg = [col, state[1], state[2], state[3], state[4]];
+                }
+                else {
+                    seg = [col, state[1], state[2], state[3]];
+                }
+            }
+            else {
+                seg = [col];
+            }
+            line.push(seg);
+        }
+        if (!sorted)
+            sort(line);
+        decoded.push(line);
+        index = semi + 1;
+    } while (index <= mappings.length);
+    return decoded;
+}
+function indexOf(mappings, index) {
+    const idx = mappings.indexOf(';', index);
+    return idx === -1 ? mappings.length : idx;
+}
+function decodeInteger(mappings, pos, state, j) {
+    let value = 0;
+    let shift = 0;
+    let integer = 0;
+    do {
+        const c = mappings.charCodeAt(pos++);
+        integer = charToInt[c];
+        value |= (integer & 31) << shift;
+        shift += 5;
+    } while (integer & 32);
+    const shouldNegate = value & 1;
+    value >>>= 1;
+    if (shouldNegate) {
+        value = -0x80000000 | -value;
+    }
+    state[j] += value;
+    return pos;
+}
+function hasMoreVlq(mappings, i, length) {
+    if (i >= length)
+        return false;
+    return mappings.charCodeAt(i) !== comma;
+}
+function sort(line) {
+    line.sort(sortComparator);
+}
+function sortComparator(a, b) {
+    return a[0] - b[0];
+}
+function encode(decoded) {
+    const state = new Int32Array(5);
+    const bufLength = 1024 * 16;
+    const subLength = bufLength - 36;
+    const buf = new Uint8Array(bufLength);
+    const sub = buf.subarray(0, subLength);
+    let pos = 0;
+    let out = '';
+    for (let i = 0; i < decoded.length; i++) {
+        const line = decoded[i];
+        if (i > 0) {
+            if (pos === bufLength) {
+                out += td.decode(buf);
+                pos = 0;
+            }
+            buf[pos++] = semicolon;
+        }
+        if (line.length === 0)
+            continue;
+        state[0] = 0;
+        for (let j = 0; j < line.length; j++) {
+            const segment = line[j];
+            // We can push up to 5 ints, each int can take at most 7 chars, and we
+            // may push a comma.
+            if (pos > subLength) {
+                out += td.decode(sub);
+                buf.copyWithin(0, subLength, pos);
+                pos -= subLength;
+            }
+            if (j > 0)
+                buf[pos++] = comma;
+            pos = encodeInteger(buf, pos, state, segment, 0); // genColumn
+            if (segment.length === 1)
+                continue;
+            pos = encodeInteger(buf, pos, state, segment, 1); // sourcesIndex
+            pos = encodeInteger(buf, pos, state, segment, 2); // sourceLine
+            pos = encodeInteger(buf, pos, state, segment, 3); // sourceColumn
+            if (segment.length === 4)
+                continue;
+            pos = encodeInteger(buf, pos, state, segment, 4); // namesIndex
+        }
+    }
+    return out + td.decode(buf.subarray(0, pos));
+}
+function encodeInteger(buf, pos, state, segment, j) {
+    const next = segment[j];
+    let num = next - state[j];
+    state[j] = next;
+    num = num < 0 ? (-num << 1) | 1 : num << 1;
+    do {
+        let clamped = num & 0b011111;
+        num >>>= 5;
+        if (num > 0)
+            clamped |= 0b100000;
+        buf[pos++] = intToChar[clamped];
+    } while (num > 0);
+    return pos;
+}
+
+export { decode, encode };
+//# sourceMappingURL=sourcemap-codec.mjs.map