angular-cn/packages/core/schematics/migrations/google3/dynamicQueriesRule.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {Replacement, RuleFailure, Rules} from 'tslint';
import * as ts from 'typescript';
import {identifyDynamicQueryNodes, removeOptionsParameter, removeStaticFlag} from '../dynamic-queries/util';
const RULE_NAME = 'dynamic-queries';
const FAILURE_MESSAGE =
'The static flag defaults to false, so setting it false manually is unnecessary.';
/**
* TSLint rule that removes the `static` flag from dynamic queries.
*/
export class Rule extends Rules.TypedRule {
applyWithProgram(sourceFile: ts.SourceFile, program: ts.Program): RuleFailure[] {
const printer = ts.createPrinter();
const failures: RuleFailure[] = [];
const result = identifyDynamicQueryNodes(program.getTypeChecker(), sourceFile);
result.removeProperty.forEach(node => {
failures.push(new RuleFailure(
sourceFile, node.getStart(), node.getEnd(), FAILURE_MESSAGE, RULE_NAME,
new Replacement(
node.getStart(), node.getWidth(),
printer.printNode(ts.EmitHint.Unspecified, removeStaticFlag(node), sourceFile))));
});
result.removeParameter.forEach(node => {
failures.push(new RuleFailure(
sourceFile, node.getStart(), node.getEnd(), FAILURE_MESSAGE, RULE_NAME,
new Replacement(
node.getStart(), node.getWidth(),
printer.printNode(
ts.EmitHint.Unspecified, removeOptionsParameter(node), sourceFile))));
});
return failures;
}
}