Forbid unused locals/parameters in compiler#11715
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mhegazy
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Oct 18, 2016
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can you also build LKG and make sure non of these changes change typesript.d.ts, we do not want to break API users
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| function emitTripleSlashLeadingComment(commentPos: number, commentEnd: number, kind: SyntaxKind, hasTrailingNewLine: boolean, rangePos: number) { | ||
| function emitTripleSlashLeadingComment(commentPos: number, commentEnd: number, _kind: SyntaxKind, hasTrailingNewLine: boolean, rangePos: number) { |
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why _kind? seems it is used two lines below.
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| else { | ||
| return t => u => u; | ||
| return _t => u => u; |
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| const id = (s: SourceFile) => s; | ||
| const nullTransformers: Transformer[] = [ctx => id]; | ||
| const nullTransformers: Transformer[] = [_ctx => id]; |
| /* @internal */ | ||
| export function trace(host: ModuleResolutionHost, message: DiagnosticMessage, ...args: any[]): void; | ||
| export function trace(host: ModuleResolutionHost, message: DiagnosticMessage): void { | ||
| export function trace(host: ModuleResolutionHost, _message: DiagnosticMessage): void { |
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consider removing _message all together from the implementation signature, export function trace(host: ModuleResolutionHost): void { .. }
| @@ -575,7 +575,7 @@ namespace ts { | |||
| export function parseSourceFile(fileName: string, _sourceText: string, languageVersion: ScriptTarget, _syntaxCursor: IncrementalParser.SyntaxCursor, setParentNodes?: boolean, scriptKind?: ScriptKind): SourceFile { | |||
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why do these start with _?
| getCurrentDirectory: () => ChakraHost.currentDirectory, | ||
| getDirectories: ChakraHost.getDirectories, | ||
| getEnvironmentVariable: ChakraHost.getEnvironmentVariable || ((name: string) => ""), | ||
| getEnvironmentVariable: ChakraHost.getEnvironmentVariable || ((_name: string) => ""), |
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do not think you need ht type annotation here.
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Mostly I just removed any parameter that wasn't used, and then removed it from callers. If a function is used as a callback, and other callbacks use that parameter, I use an
_underscoredparameter name.TODO: The same thing for harness/server/services, and probably use tsconfig inheritance.