323 lines
8.6 KiB
JavaScript
Executable file
323 lines
8.6 KiB
JavaScript
Executable file
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
class Buffer {
|
|
constructor(map, indentChar) {
|
|
this._map = null;
|
|
this._buf = "";
|
|
this._str = "";
|
|
this._appendCount = 0;
|
|
this._last = 0;
|
|
this._queue = [];
|
|
this._queueCursor = 0;
|
|
this._canMarkIdName = true;
|
|
this._indentChar = "";
|
|
this._fastIndentations = [];
|
|
this._position = {
|
|
line: 1,
|
|
column: 0
|
|
};
|
|
this._sourcePosition = {
|
|
identifierName: undefined,
|
|
identifierNamePos: undefined,
|
|
line: undefined,
|
|
column: undefined,
|
|
filename: undefined
|
|
};
|
|
this._map = map;
|
|
this._indentChar = indentChar;
|
|
for (let i = 0; i < 64; i++) {
|
|
this._fastIndentations.push(indentChar.repeat(i));
|
|
}
|
|
this._allocQueue();
|
|
}
|
|
_allocQueue() {
|
|
const queue = this._queue;
|
|
for (let i = 0; i < 16; i++) {
|
|
queue.push({
|
|
char: 0,
|
|
repeat: 1,
|
|
line: undefined,
|
|
column: undefined,
|
|
identifierName: undefined,
|
|
identifierNamePos: undefined,
|
|
filename: ""
|
|
});
|
|
}
|
|
}
|
|
_pushQueue(char, repeat, line, column, filename) {
|
|
const cursor = this._queueCursor;
|
|
if (cursor === this._queue.length) {
|
|
this._allocQueue();
|
|
}
|
|
const item = this._queue[cursor];
|
|
item.char = char;
|
|
item.repeat = repeat;
|
|
item.line = line;
|
|
item.column = column;
|
|
item.filename = filename;
|
|
this._queueCursor++;
|
|
}
|
|
_popQueue() {
|
|
if (this._queueCursor === 0) {
|
|
throw new Error("Cannot pop from empty queue");
|
|
}
|
|
return this._queue[--this._queueCursor];
|
|
}
|
|
get() {
|
|
this._flush();
|
|
const map = this._map;
|
|
const result = {
|
|
code: (this._buf + this._str).trimRight(),
|
|
decodedMap: map == null ? void 0 : map.getDecoded(),
|
|
get __mergedMap() {
|
|
return this.map;
|
|
},
|
|
get map() {
|
|
const resultMap = map ? map.get() : null;
|
|
result.map = resultMap;
|
|
return resultMap;
|
|
},
|
|
set map(value) {
|
|
Object.defineProperty(result, "map", {
|
|
value,
|
|
writable: true
|
|
});
|
|
},
|
|
get rawMappings() {
|
|
const mappings = map == null ? void 0 : map.getRawMappings();
|
|
result.rawMappings = mappings;
|
|
return mappings;
|
|
},
|
|
set rawMappings(value) {
|
|
Object.defineProperty(result, "rawMappings", {
|
|
value,
|
|
writable: true
|
|
});
|
|
}
|
|
};
|
|
return result;
|
|
}
|
|
append(str, maybeNewline) {
|
|
this._flush();
|
|
this._append(str, this._sourcePosition, maybeNewline);
|
|
}
|
|
appendChar(char) {
|
|
this._flush();
|
|
this._appendChar(char, 1, this._sourcePosition);
|
|
}
|
|
queue(char) {
|
|
if (char === 10) {
|
|
while (this._queueCursor !== 0) {
|
|
const char = this._queue[this._queueCursor - 1].char;
|
|
if (char !== 32 && char !== 9) {
|
|
break;
|
|
}
|
|
this._queueCursor--;
|
|
}
|
|
}
|
|
const sourcePosition = this._sourcePosition;
|
|
this._pushQueue(char, 1, sourcePosition.line, sourcePosition.column, sourcePosition.filename);
|
|
}
|
|
queueIndentation(repeat) {
|
|
if (repeat === 0) return;
|
|
this._pushQueue(-1, repeat, undefined, undefined, undefined);
|
|
}
|
|
_flush() {
|
|
const queueCursor = this._queueCursor;
|
|
const queue = this._queue;
|
|
for (let i = 0; i < queueCursor; i++) {
|
|
const item = queue[i];
|
|
this._appendChar(item.char, item.repeat, item);
|
|
}
|
|
this._queueCursor = 0;
|
|
}
|
|
_appendChar(char, repeat, sourcePos) {
|
|
this._last = char;
|
|
if (char === -1) {
|
|
const fastIndentation = this._fastIndentations[repeat];
|
|
if (fastIndentation !== undefined) {
|
|
this._str += fastIndentation;
|
|
} else {
|
|
this._str += repeat > 1 ? this._indentChar.repeat(repeat) : this._indentChar;
|
|
}
|
|
} else {
|
|
this._str += repeat > 1 ? String.fromCharCode(char).repeat(repeat) : String.fromCharCode(char);
|
|
}
|
|
if (char !== 10) {
|
|
this._mark(sourcePos.line, sourcePos.column, sourcePos.identifierName, sourcePos.identifierNamePos, sourcePos.filename);
|
|
this._position.column += repeat;
|
|
} else {
|
|
this._position.line++;
|
|
this._position.column = 0;
|
|
}
|
|
if (this._canMarkIdName) {
|
|
sourcePos.identifierName = undefined;
|
|
sourcePos.identifierNamePos = undefined;
|
|
}
|
|
}
|
|
_append(str, sourcePos, maybeNewline) {
|
|
const len = str.length;
|
|
const position = this._position;
|
|
this._last = str.charCodeAt(len - 1);
|
|
if (++this._appendCount > 4096) {
|
|
+this._str;
|
|
this._buf += this._str;
|
|
this._str = str;
|
|
this._appendCount = 0;
|
|
} else {
|
|
this._str += str;
|
|
}
|
|
if (!maybeNewline && !this._map) {
|
|
position.column += len;
|
|
return;
|
|
}
|
|
const {
|
|
column,
|
|
identifierName,
|
|
identifierNamePos,
|
|
filename
|
|
} = sourcePos;
|
|
let line = sourcePos.line;
|
|
if ((identifierName != null || identifierNamePos != null) && this._canMarkIdName) {
|
|
sourcePos.identifierName = undefined;
|
|
sourcePos.identifierNamePos = undefined;
|
|
}
|
|
let i = str.indexOf("\n");
|
|
let last = 0;
|
|
if (i !== 0) {
|
|
this._mark(line, column, identifierName, identifierNamePos, filename);
|
|
}
|
|
while (i !== -1) {
|
|
position.line++;
|
|
position.column = 0;
|
|
last = i + 1;
|
|
if (last < len && line !== undefined) {
|
|
this._mark(++line, 0, null, null, filename);
|
|
}
|
|
i = str.indexOf("\n", last);
|
|
}
|
|
position.column += len - last;
|
|
}
|
|
_mark(line, column, identifierName, identifierNamePos, filename) {
|
|
var _this$_map;
|
|
(_this$_map = this._map) == null || _this$_map.mark(this._position, line, column, identifierName, identifierNamePos, filename);
|
|
}
|
|
removeTrailingNewline() {
|
|
const queueCursor = this._queueCursor;
|
|
if (queueCursor !== 0 && this._queue[queueCursor - 1].char === 10) {
|
|
this._queueCursor--;
|
|
}
|
|
}
|
|
removeLastSemicolon() {
|
|
const queueCursor = this._queueCursor;
|
|
if (queueCursor !== 0 && this._queue[queueCursor - 1].char === 59) {
|
|
this._queueCursor--;
|
|
}
|
|
}
|
|
getLastChar() {
|
|
const queueCursor = this._queueCursor;
|
|
return queueCursor !== 0 ? this._queue[queueCursor - 1].char : this._last;
|
|
}
|
|
getNewlineCount() {
|
|
const queueCursor = this._queueCursor;
|
|
let count = 0;
|
|
if (queueCursor === 0) return this._last === 10 ? 1 : 0;
|
|
for (let i = queueCursor - 1; i >= 0; i--) {
|
|
if (this._queue[i].char !== 10) {
|
|
break;
|
|
}
|
|
count++;
|
|
}
|
|
return count === queueCursor && this._last === 10 ? count + 1 : count;
|
|
}
|
|
endsWithCharAndNewline() {
|
|
const queue = this._queue;
|
|
const queueCursor = this._queueCursor;
|
|
if (queueCursor !== 0) {
|
|
const lastCp = queue[queueCursor - 1].char;
|
|
if (lastCp !== 10) return;
|
|
if (queueCursor > 1) {
|
|
return queue[queueCursor - 2].char;
|
|
} else {
|
|
return this._last;
|
|
}
|
|
}
|
|
}
|
|
hasContent() {
|
|
return this._queueCursor !== 0 || !!this._last;
|
|
}
|
|
exactSource(loc, cb) {
|
|
if (!this._map) {
|
|
cb();
|
|
return;
|
|
}
|
|
this.source("start", loc);
|
|
const identifierName = loc.identifierName;
|
|
const sourcePos = this._sourcePosition;
|
|
if (identifierName) {
|
|
this._canMarkIdName = false;
|
|
sourcePos.identifierName = identifierName;
|
|
}
|
|
cb();
|
|
if (identifierName) {
|
|
this._canMarkIdName = true;
|
|
sourcePos.identifierName = undefined;
|
|
sourcePos.identifierNamePos = undefined;
|
|
}
|
|
this.source("end", loc);
|
|
}
|
|
source(prop, loc) {
|
|
if (!this._map) return;
|
|
this._normalizePosition(prop, loc, 0);
|
|
}
|
|
sourceWithOffset(prop, loc, columnOffset) {
|
|
if (!this._map) return;
|
|
this._normalizePosition(prop, loc, columnOffset);
|
|
}
|
|
withSource(prop, loc, cb) {
|
|
if (this._map) {
|
|
this.source(prop, loc);
|
|
}
|
|
cb();
|
|
}
|
|
_normalizePosition(prop, loc, columnOffset) {
|
|
const pos = loc[prop];
|
|
const target = this._sourcePosition;
|
|
if (pos) {
|
|
target.line = pos.line;
|
|
target.column = Math.max(pos.column + columnOffset, 0);
|
|
target.filename = loc.filename;
|
|
}
|
|
}
|
|
getCurrentColumn() {
|
|
const queue = this._queue;
|
|
const queueCursor = this._queueCursor;
|
|
let lastIndex = -1;
|
|
let len = 0;
|
|
for (let i = 0; i < queueCursor; i++) {
|
|
const item = queue[i];
|
|
if (item.char === 10) {
|
|
lastIndex = len;
|
|
}
|
|
len += item.repeat;
|
|
}
|
|
return lastIndex === -1 ? this._position.column + len : len - 1 - lastIndex;
|
|
}
|
|
getCurrentLine() {
|
|
let count = 0;
|
|
const queue = this._queue;
|
|
for (let i = 0; i < this._queueCursor; i++) {
|
|
if (queue[i].char === 10) {
|
|
count++;
|
|
}
|
|
}
|
|
return this._position.line + count;
|
|
}
|
|
}
|
|
exports.default = Buffer;
|
|
|
|
//# sourceMappingURL=buffer.js.map
|