Files
azuredatastudio/build/lib/tslint/doubleQuotedStringArgRule.ts
2019-08-05 09:46:22 -07:00

83 lines
2.8 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Source EULA. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as ts from 'typescript';
import * as Lint from 'tslint';
/**
* Implementation of the double-quoted-string-arg rule which verifies that the specified index of calls matching
* the specified signatures is quoted with double-quotes only.
*/
export class Rule extends Lint.Rules.AbstractRule {
public apply(sourceFile: ts.SourceFile): Lint.RuleFailure[] {
return this.applyWithWalker(new DoubleQuotedStringArgRuleWalker(sourceFile, this.getOptions()));
}
}
interface Map<V> {
[key: string]: V;
}
interface DoubleQuotedStringArgOptions {
signatures?: string[];
argIndex?: number;
}
class DoubleQuotedStringArgRuleWalker extends Lint.RuleWalker {
private static DOUBLE_QUOTE: string = '"';
private signatures: Map<boolean>;
private argIndex: number | undefined;
constructor(file: ts.SourceFile, opts: Lint.IOptions) {
super(file, opts);
this.signatures = Object.create(null);
this.argIndex = undefined;
const options: any[] = this.getOptions();
const first: DoubleQuotedStringArgOptions = options && options.length > 0 ? options[0] : null;
if (first) {
if (Array.isArray(first.signatures)) {
first.signatures.forEach((signature: string) => this.signatures[signature] = true);
}
if (typeof first.argIndex !== 'undefined') {
this.argIndex = first.argIndex;
}
}
}
protected visitCallExpression(node: ts.CallExpression): void {
this.checkCallExpression(node);
super.visitCallExpression(node);
}
private checkCallExpression(node: ts.CallExpression): void {
// Not one of the functions we're looking for, continue on
const functionName = node.expression.getText();
if (functionName && !this.signatures[functionName]) {
return;
}
const arg = node.arguments[this.argIndex!];
// Ignore if the arg isn't a string - we expect the compiler to warn if that's an issue
if(arg && ts.isStringLiteral(arg)) {
const argText = arg.getText();
const doubleQuotedArg = argText.length >= 2 && argText[0] === DoubleQuotedStringArgRuleWalker.DOUBLE_QUOTE && argText[argText.length - 1] === DoubleQuotedStringArgRuleWalker.DOUBLE_QUOTE;
if (!doubleQuotedArg) {
const fix = [
Lint.Replacement.replaceFromTo(arg.getStart(), arg.getWidth(), `"${arg.getText().slice(1, arg.getWidth() - 2)}"`),
];
this.addFailure(this.createFailure(
arg.getStart(), arg.getWidth(),
`Argument ${this.argIndex! + 1} to '${functionName}' must be double quoted.`, fix));
return;
}
}
}
}