我发现下面粘贴的代码签入了我们的React / Typescript-JSX / TSX项目。它包含一个Git合并冲突,尚未解决。
该代码将构建(通过保险丝盒)并在浏览器中运行!
“已编译”代码导致将top元素解析为组件的根元素,而忽略第二个元素(“ .app-container”开始)。
看起来,在某些情况下,可以通过TSX / JSX解释/解析/转译来忽略git合并冲突。
我的问题是:这项工作如何进行?这种行为是故意的吗?
export const App: SFC = () => (
<<<<<<< HEAD
<Provider store={window.uglySolution}>
<Router history={customHistory}>
<Switch>
<Route exact path='/' component={Welcome}/>
<Route exact path='/advice' component={PageLayout}/>
<Route exact path='/login' component={Login}/>
<Route exact path='/manage' component={ManageLayout}/>
</Switch>
</Router>
</Provider>
=======
<div className='app-container'>
<Provider store={window.uglySolution}>
<Router history={customHistory}>
<Switch>
<Route exact path='/' component={Welcome}/>
<Route exact path='/advice' component={PageLayout}/>
<Route exact path='/login' component={Login}/>
<Route exact path='/manage' component={ManageLayout}/>
</Switch>
</Router>
</Provider>
</div>
>>>>>>> f81b0b1b458e3d41f91faa2e726be6d88a35d9f8
);
最佳答案
我知道这是一个很晚的答案(将近一年后),但万一有人正在使用谷歌搜索并想知道同一件事。是的,在打字稿词法分析器中故意存在代码的行为来处理git合并冲突!注意:在解析器上,跳过琐事默认为true。
if (isConflictMarkerTrivia(text, pos)) {
pos = scanConflictMarkerTrivia(text, pos, error);
if (skipTrivia) {
continue;
}
else {
return token = SyntaxKind.ConflictMarkerTrivia;
}
}
下面是处理合并冲突的代码:
function scanConflictMarkerTrivia(text: string, pos: number, error?: (diag: DiagnosticMessage, pos?: number, len?: number) => void) {
if (error) {
error(Diagnostics.Merge_conflict_marker_encountered, pos, mergeConflictMarkerLength);
}
const ch = text.charCodeAt(pos);
const len = text.length;
if (ch === CharacterCodes.lessThan || ch === CharacterCodes.greaterThan) {
while (pos < len && !isLineBreak(text.charCodeAt(pos))) {
pos++;
}
}
else {
Debug.assert(ch === CharacterCodes.bar || ch === CharacterCodes.equals);
// Consume everything from the start of a ||||||| or ======= marker to the start
// of the next ======= or >>>>>>> marker.
while (pos < len) {
const currentChar = text.charCodeAt(pos);
if ((currentChar === CharacterCodes.equals || currentChar === CharacterCodes.greaterThan) && currentChar !== ch && isConflictMarkerTrivia(text, pos)) {
break;
}
pos++;
}
}
return pos;
}
资料来源:
https://github.com/Microsoft/TypeScript/blob/0ef0b7adea643a4a28cf9ada1476ff5650a1a9f2/src/compiler/scanner.ts#L1604
https://github.com/Microsoft/TypeScript/blob/0ef0b7adea643a4a28cf9ada1476ff5650a1a9f2/src/compiler/scanner.ts#L565