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codeFixProvider.ts

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/* @internal */

namespace ts {

export interface CodeFix {

errorCodes: number[];

getCodeActions(context: CodeFixContext): CodeAction[] | undefined;

}

export interface CodeFixContext {

errorCode: number;

sourceFile: SourceFile;

span: TextSpan;

program: Program;

newLineCharacter: string;

host: LanguageServiceHost;

cancellationToken: CancellationToken;

rulesProvider: formatting.RulesProvider;

}

export namespace codefix {

const codeFixes: CodeFix[][] = [];

export function registerCodeFix(codeFix: CodeFix) {

forEach(codeFix.errorCodes, error => {

let fixes = codeFixes[error];

if (!fixes) {

fixes = [];

codeFixes[error] = fixes;

}

fixes.push(codeFix);

});

}

export function getSupportedErrorCodes() {

return Object.keys(codeFixes);

}

export function getFixes(context: CodeFixContext): CodeAction[] {

const fixes = codeFixes[context.errorCode];

let allActions: CodeAction[] = [];

forEach(fixes, f => {

const actions = f.getCodeActions(context);

if (actions && actions.length > 0) {

allActions = allActions.concat(actions);

}

});

return allActions;

}

}

}