Initial commit

This commit is contained in:
Porawit Dongwang
2026-09-16 23:20:08 +07:00
commit 0041668dbb
32577 changed files with 3687927 additions and 0 deletions
@@ -0,0 +1,467 @@
// src/vlq.ts
var comma = ",".charCodeAt(0);
var semicolon = ";".charCodeAt(0);
var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
var intToChar = new Uint8Array(64);
var charToInt = new Uint8Array(128);
for (let i = 0; i < chars.length; i++) {
const c = chars.charCodeAt(i);
intToChar[i] = c;
charToInt[c] = i;
}
function decodeInteger(reader) {
let value = 0;
let shift = 0;
let integer = 0;
do {
const c = reader.next();
integer = charToInt[c];
value |= (integer & 31) << shift;
shift += 5;
} while (integer & 32);
return value;
}
function decodeSign(num) {
return num & 1 ? -2147483648 | -(num >>> 1) : num >>> 1;
}
function encodeInteger(builder, num) {
do {
let clamped = num & 31;
num >>>= 5;
if (num > 0) clamped |= 32;
builder.write(intToChar[clamped]);
} while (num > 0);
}
function encodeSign(num) {
return num < 0 ? -num << 1 | 1 : num << 1;
}
function hasMoreVlq(reader, max) {
if (reader.pos >= max) return false;
return reader.peek() !== comma;
}
// src/strings.ts
var bufLength = 1024 * 16;
var 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;
}
};
var StringWriter = class {
constructor() {
this.pos = 0;
this.out = "";
this.buffer = new Uint8Array(bufLength);
}
write(v) {
const { buffer } = this;
buffer[this.pos++] = v;
if (this.pos === bufLength) {
this.out += td.decode(buffer);
this.pos = 0;
}
}
flush() {
const { buffer, out, pos } = this;
return pos > 0 ? out + td.decode(buffer.subarray(0, pos)) : out;
}
};
var StringReader = class {
constructor(buffer) {
this.pos = 0;
this.buffer = buffer;
}
next() {
return this.buffer.charCodeAt(this.pos++);
}
peek() {
return this.buffer.charCodeAt(this.pos);
}
indexOf(char) {
const { buffer, pos } = this;
const idx = buffer.indexOf(char, pos);
return idx === -1 ? buffer.length : idx;
}
};
// src/scopes.ts
var EMPTY = [];
function decodeOriginalScopes(input) {
const { length } = input;
const reader = new StringReader(input);
const scopes = [];
const stack = [];
let line = 0;
for (; reader.pos < length; reader.pos++) {
line += decodeSign(decodeInteger(reader));
const column = decodeSign(decodeInteger(reader));
if (!hasMoreVlq(reader, length)) {
const last = stack.pop();
last[2] = line;
last[3] = column;
continue;
}
const kind = decodeSign(decodeInteger(reader));
const fields = decodeSign(decodeInteger(reader));
const hasName = fields & 1;
const scope = hasName ? [line, column, 0, 0, kind, decodeSign(decodeInteger(reader))] : [line, column, 0, 0, kind];
let vars = EMPTY;
if (hasMoreVlq(reader, length)) {
vars = [];
do {
const varsIndex = decodeSign(decodeInteger(reader));
vars.push(varsIndex);
} while (hasMoreVlq(reader, length));
}
scope.vars = vars;
scopes.push(scope);
stack.push(scope);
}
return scopes;
}
function encodeOriginalScopes(scopes) {
const writer = new StringWriter();
for (let i = 0; i < scopes.length; ) {
i = _encodeOriginalScopes(scopes, i, writer, [0]);
}
return writer.flush();
}
function _encodeOriginalScopes(scopes, index, writer, state) {
const scope = scopes[index];
const { 0: startLine, 1: startColumn, 2: endLine, 3: endColumn, 4: kind, vars } = scope;
if (index > 0) writer.write(comma);
encodeInteger(writer, encodeSign(startLine - state[0]));
state[0] = startLine;
encodeInteger(writer, encodeSign(startColumn));
encodeInteger(writer, encodeSign(kind));
const fields = scope.length === 6 ? 1 : 0;
encodeInteger(writer, encodeSign(fields));
if (scope.length === 6) encodeInteger(writer, encodeSign(scope[5]));
for (const v of vars) {
encodeInteger(writer, encodeSign(v));
}
for (index++; index < scopes.length; ) {
const next = scopes[index];
const { 0: l, 1: c } = next;
if (l > endLine || l === endLine && c >= endColumn) {
break;
}
index = _encodeOriginalScopes(scopes, index, writer, state);
}
writer.write(comma);
encodeInteger(writer, encodeSign(endLine - state[0]));
state[0] = endLine;
encodeInteger(writer, encodeSign(endColumn));
return index;
}
function decodeGeneratedRanges(input) {
const { length } = input;
const reader = new StringReader(input);
const ranges = [];
const stack = [];
let genLine = 0;
let definitionSourcesIndex = 0;
let definitionScopeIndex = 0;
let callsiteSourcesIndex = 0;
let callsiteLine = 0;
let callsiteColumn = 0;
let bindingLine = 0;
let bindingColumn = 0;
do {
const semi = reader.indexOf(";");
let genColumn = 0;
for (; reader.pos < semi; reader.pos++) {
genColumn += decodeSign(decodeInteger(reader));
if (!hasMoreVlq(reader, semi)) {
const last = stack.pop();
last[2] = genLine;
last[3] = genColumn;
continue;
}
const fields = decodeSign(decodeInteger(reader));
const hasDefinition = fields & 1;
const hasCallsite = fields & 2;
const hasScope = fields & 4;
let callsite = null;
let bindings = EMPTY;
let range;
if (hasDefinition) {
const defSourcesIndex = definitionSourcesIndex + decodeSign(decodeInteger(reader));
definitionScopeIndex = decodeSign(decodeInteger(reader)) + (definitionSourcesIndex === defSourcesIndex ? definitionScopeIndex : 0);
definitionSourcesIndex = defSourcesIndex;
range = [genLine, genColumn, 0, 0, defSourcesIndex, definitionScopeIndex];
} else {
range = [genLine, genColumn, 0, 0];
}
range.isScope = !!hasScope;
if (hasCallsite) {
const prevCsi = callsiteSourcesIndex;
const prevLine = callsiteLine;
callsiteSourcesIndex += decodeSign(decodeInteger(reader));
const sameSource = prevCsi === callsiteSourcesIndex;
callsiteLine = (sameSource ? callsiteLine : 0) + decodeSign(decodeInteger(reader));
callsiteColumn = (sameSource && prevLine === callsiteLine ? callsiteColumn : 0) + decodeSign(decodeInteger(reader));
callsite = [callsiteSourcesIndex, callsiteLine, callsiteColumn];
}
range.callsite = callsite;
if (hasMoreVlq(reader, semi)) {
bindings = [];
do {
bindingLine = genLine;
bindingColumn = genColumn;
const expressionsCount = decodeSign(decodeInteger(reader));
let expressionRanges;
if (expressionsCount < -1) {
expressionRanges = [[decodeSign(decodeInteger(reader))]];
for (let i = -1; i > expressionsCount; i--) {
const prevBl = bindingLine;
bindingLine += decodeSign(decodeInteger(reader));
bindingColumn = (bindingLine === prevBl ? bindingColumn : 0) + decodeSign(decodeInteger(reader));
const expression = decodeSign(decodeInteger(reader));
expressionRanges.push([expression, bindingLine, bindingColumn]);
}
} else {
expressionRanges = [[expressionsCount]];
}
bindings.push(expressionRanges);
} while (hasMoreVlq(reader, semi));
}
range.bindings = bindings;
ranges.push(range);
stack.push(range);
}
genLine++;
reader.pos = semi + 1;
} while (reader.pos < length);
return ranges;
}
function encodeGeneratedRanges(ranges) {
if (ranges.length === 0) return "";
const writer = new StringWriter();
for (let i = 0; i < ranges.length; ) {
i = _encodeGeneratedRanges(ranges, i, writer, [0, 0, 0, 0, 0, 0, 0]);
}
return writer.flush();
}
function _encodeGeneratedRanges(ranges, index, writer, state) {
const range = ranges[index];
const {
0: startLine,
1: startColumn,
2: endLine,
3: endColumn,
isScope,
callsite,
bindings
} = range;
if (state[0] < startLine) {
catchupLine(writer, state[0], startLine);
state[0] = startLine;
state[1] = 0;
} else if (index > 0) {
writer.write(comma);
}
encodeInteger(writer, encodeSign(range[1] - state[1]));
state[1] = range[1];
const fields = (range.length === 6 ? 1 : 0) | (callsite ? 2 : 0) | (isScope ? 4 : 0);
encodeInteger(writer, encodeSign(fields));
if (range.length === 6) {
const { 4: sourcesIndex, 5: scopesIndex } = range;
if (sourcesIndex !== state[2]) {
state[3] = 0;
}
encodeInteger(writer, encodeSign(sourcesIndex - state[2]));
state[2] = sourcesIndex;
encodeInteger(writer, encodeSign(scopesIndex - state[3]));
state[3] = scopesIndex;
}
if (callsite) {
const { 0: sourcesIndex, 1: callLine, 2: callColumn } = range.callsite;
if (sourcesIndex !== state[4]) {
state[5] = 0;
state[6] = 0;
} else if (callLine !== state[5]) {
state[6] = 0;
}
encodeInteger(writer, encodeSign(sourcesIndex - state[4]));
state[4] = sourcesIndex;
encodeInteger(writer, encodeSign(callLine - state[5]));
state[5] = callLine;
encodeInteger(writer, encodeSign(callColumn - state[6]));
state[6] = callColumn;
}
if (bindings) {
for (const binding of bindings) {
if (binding.length > 1) encodeInteger(writer, encodeSign(-binding.length));
const expression = binding[0][0];
encodeInteger(writer, encodeSign(expression));
let bindingStartLine = startLine;
let bindingStartColumn = startColumn;
for (let i = 1; i < binding.length; i++) {
const expRange = binding[i];
encodeInteger(writer, encodeSign(expRange[1] - bindingStartLine));
bindingStartLine = expRange[1];
encodeInteger(writer, encodeSign(expRange[2] - bindingStartColumn));
bindingStartColumn = expRange[2];
encodeInteger(writer, encodeSign(expRange[0]));
}
}
}
for (index++; index < ranges.length; ) {
const next = ranges[index];
const { 0: l, 1: c } = next;
if (l > endLine || l === endLine && c >= endColumn) {
break;
}
index = _encodeGeneratedRanges(ranges, index, writer, state);
}
if (state[0] < endLine) {
catchupLine(writer, state[0], endLine);
state[0] = endLine;
state[1] = 0;
} else {
writer.write(comma);
}
encodeInteger(writer, encodeSign(endColumn - state[1]));
state[1] = endColumn;
return index;
}
function catchupLine(writer, lastLine, line) {
do {
writer.write(semicolon);
} while (++lastLine < line);
}
// src/range-mappings.ts
function decodeRangeMappings(input) {
const { length } = input;
const reader = new StringReader(input);
const rangeMappings = [];
do {
const semi = reader.indexOf(";");
const indices = [];
let index = 0;
while (reader.pos < semi) {
index += decodeInteger(reader);
indices.push(index);
}
rangeMappings.push(indices);
reader.pos = semi + 1;
} while (reader.pos <= length);
return rangeMappings;
}
function encodeRangeMappings(decoded) {
if (decoded.length === 0) return "";
const writer = new StringWriter();
for (let i = 0; i < decoded.length; i++) {
const indices = decoded[i];
if (i > 0) writer.write(semicolon);
let index = 0;
for (let j = 0; j < indices.length; j++) {
const offset = indices[j];
encodeInteger(writer, offset - index);
index = offset;
}
}
return writer.flush();
}
// src/sourcemap-codec.ts
function decode(mappings) {
const { length } = mappings;
const reader = new StringReader(mappings);
const decoded = [];
let genColumn = 0;
let sourcesIndex = 0;
let sourceLine = 0;
let sourceColumn = 0;
let namesIndex = 0;
do {
const semi = reader.indexOf(";");
const line = [];
let sorted = true;
let lastCol = 0;
genColumn = 0;
while (reader.pos < semi) {
let seg;
genColumn += decodeSign(decodeInteger(reader));
if (genColumn < lastCol) sorted = false;
lastCol = genColumn;
if (hasMoreVlq(reader, semi)) {
sourcesIndex += decodeSign(decodeInteger(reader));
sourceLine += decodeSign(decodeInteger(reader));
sourceColumn += decodeSign(decodeInteger(reader));
if (hasMoreVlq(reader, semi)) {
namesIndex += decodeSign(decodeInteger(reader));
seg = [genColumn, sourcesIndex, sourceLine, sourceColumn, namesIndex];
} else {
seg = [genColumn, sourcesIndex, sourceLine, sourceColumn];
}
} else {
seg = [genColumn];
}
line.push(seg);
reader.pos++;
}
if (!sorted) sort(line);
decoded.push(line);
reader.pos = semi + 1;
} while (reader.pos <= length);
return decoded;
}
function sort(line) {
line.sort(sortComparator);
}
function sortComparator(a, b) {
return a[0] - b[0];
}
function encode(decoded) {
const writer = new StringWriter();
let sourcesIndex = 0;
let sourceLine = 0;
let sourceColumn = 0;
let namesIndex = 0;
for (let i = 0; i < decoded.length; i++) {
const line = decoded[i];
if (i > 0) writer.write(semicolon);
if (line.length === 0) continue;
let genColumn = 0;
for (let j = 0; j < line.length; j++) {
const segment = line[j];
if (j > 0) writer.write(comma);
encodeInteger(writer, encodeSign(segment[0] - genColumn));
genColumn = segment[0];
if (segment.length === 1) continue;
encodeInteger(writer, encodeSign(segment[1] - sourcesIndex));
encodeInteger(writer, encodeSign(segment[2] - sourceLine));
encodeInteger(writer, encodeSign(segment[3] - sourceColumn));
sourcesIndex = segment[1];
sourceLine = segment[2];
sourceColumn = segment[3];
if (segment.length === 4) continue;
encodeInteger(writer, encodeSign(segment[4] - namesIndex));
namesIndex = segment[4];
}
}
return writer.flush();
}
export {
decode,
decodeGeneratedRanges,
decodeOriginalScopes,
decodeRangeMappings,
encode,
encodeGeneratedRanges,
encodeOriginalScopes,
encodeRangeMappings
};
//# sourceMappingURL=sourcemap-codec.mjs.map