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Merge pull request #3580 from jridgewell/babel-generator

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Further optimize babel-generator Buffer
This commit is contained in:
Logan Smyth 2016-07-16 12:40:55 -07:00 committed by GitHub
commit a255ef9ba1
1 changed files with 7 additions and 7 deletions
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14
packages/babel-generator/src/buffer.js
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@ -17,7 +17,7 @@ export default class Buffer {
}
_map: SourceMap = null;
_buf: string = "";
_buf: Array = [];
_last: string = "";
_queue: Array = [];
@ -36,7 +36,7 @@ export default class Buffer {
this._flush();
return {
code: trimEnd(this._buf),
code: trimEnd(this._buf.join("")),
map: this._map ? this._map.get() : null,
};
}
@ -47,8 +47,8 @@ export default class Buffer {
append(str: string): void {
this._flush();
this._append(str, this._sourcePosition.line, this._sourcePosition.column,
this._sourcePosition.filename);
const { line, column, filename } = this._sourcePosition;
this._append(str, line, column, filename);
}
/**
@ -56,8 +56,8 @@ export default class Buffer {
*/
queue(str: string): void {
this._queue.unshift([str, this._sourcePosition.line, this._sourcePosition.column,
this._sourcePosition.filename]);
const { line, column, filename } = this._sourcePosition;
this._queue.unshift([str, line, column, filename]);
}
_flush(): void {
@ -69,7 +69,7 @@ export default class Buffer {
// If there the line is ending, adding a new mapping marker is redundant
if (this._map && str[0] !== "\n") this._map.mark(this._position, line, column, filename);
this._buf += str;
this._buf.push(str);
this._last = str[str.length - 1];
this._position.push(str);
}