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67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
'use strict';
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var utils = require('../utils.js');
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require('eslint-visitor-keys');
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require('espree');
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require('estraverse');
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var noWhitespaceBeforeProperty = utils.createRule({
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name: "no-whitespace-before-property",
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package: "js",
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meta: {
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type: "layout",
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docs: {
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description: "Disallow whitespace before properties"
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},
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fixable: "whitespace",
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schema: [],
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messages: {
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unexpectedWhitespace: "Unexpected whitespace before property {{propName}}."
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}
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},
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create(context) {
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const sourceCode = context.sourceCode;
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function reportError(node, leftToken, rightToken) {
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context.report({
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node,
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messageId: "unexpectedWhitespace",
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data: {
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propName: sourceCode.getText(node.property)
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},
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fix(fixer) {
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let replacementText = "";
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if (!node.computed && !node.optional && utils.isDecimalInteger(node.object)) {
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return null;
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}
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if (sourceCode.commentsExistBetween(leftToken, rightToken))
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return null;
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if (node.optional)
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replacementText = "?.";
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else if (!node.computed)
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replacementText = ".";
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return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], replacementText);
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}
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});
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}
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return {
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MemberExpression(node) {
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let rightToken;
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let leftToken;
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if (!utils.isTokenOnSameLine(node.object, node.property))
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return;
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if (node.computed) {
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rightToken = sourceCode.getTokenBefore(node.property, utils.isOpeningBracketToken);
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leftToken = sourceCode.getTokenBefore(rightToken, node.optional ? 1 : 0);
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} else {
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rightToken = sourceCode.getFirstToken(node.property);
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leftToken = sourceCode.getTokenBefore(rightToken, 1);
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}
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if (sourceCode.isSpaceBetweenTokens(leftToken, rightToken))
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reportError(node, leftToken, rightToken);
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}
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};
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}
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});
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module.exports = noWhitespaceBeforeProperty;
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