43 lines
2 KiB
TypeScript
43 lines
2 KiB
TypeScript
import * as Lint from "tslint/lib/lint";
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import * as ts from "typescript";
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export class Rule extends Lint.Rules.AbstractRule {
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public static LEADING_FAILURE_STRING = "No leading whitespace found on single-line object literal.";
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public static TRAILING_FAILURE_STRING = "No trailing whitespace found on single-line object literal.";
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public static LEADING_EXCESS_FAILURE_STRING = "Excess leading whitespace found on single-line object literal.";
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public static TRAILING_EXCESS_FAILURE_STRING = "Excess trailing whitespace found on single-line object literal.";
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public apply(sourceFile: ts.SourceFile): Lint.RuleFailure[] {
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return this.applyWithWalker(new ObjectLiteralSpaceWalker(sourceFile, this.getOptions()));
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}
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}
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class ObjectLiteralSpaceWalker extends Lint.RuleWalker {
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public visitNode(node: ts.Node) {
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if (node.kind === ts.SyntaxKind.ObjectLiteralExpression) {
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const literal = node as ts.ObjectLiteralExpression;
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const text = literal.getText();
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if (text.match(/^{[^\n]+}$/g)) {
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if (text.charAt(1) !== " ") {
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const failure = this.createFailure(node.pos, node.getWidth(), Rule.LEADING_FAILURE_STRING);
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this.addFailure(failure);
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}
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if (text.charAt(2) === " ") {
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const failure = this.createFailure(node.pos + 2, 1, Rule.LEADING_EXCESS_FAILURE_STRING);
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this.addFailure(failure);
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}
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if (text.charAt(text.length - 2) !== " ") {
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const failure = this.createFailure(node.pos, node.getWidth(), Rule.TRAILING_FAILURE_STRING);
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this.addFailure(failure);
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}
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if (text.charAt(text.length - 3) === " ") {
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const failure = this.createFailure(node.pos + node.getWidth() - 3, 1, Rule.TRAILING_EXCESS_FAILURE_STRING);
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this.addFailure(failure);
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}
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}
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}
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super.visitNode(node);
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}
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}
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