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codeql-action/node_modules/eslint/lib/rules/no-whitespace-before-property.js
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/** | |
* @fileoverview Rule to disallow whitespace before properties | |
* @author Kai Cataldo | |
*/ | |
"use strict"; | |
//------------------------------------------------------------------------------ | |
// Requirements | |
//------------------------------------------------------------------------------ | |
const astUtils = require("./utils/ast-utils"); | |
//------------------------------------------------------------------------------ | |
// Rule Definition | |
//------------------------------------------------------------------------------ | |
/** @type {import('../shared/types').Rule} */ | |
module.exports = { | |
meta: { | |
type: "layout", | |
docs: { | |
description: "Disallow whitespace before properties", | |
recommended: false, | |
url: "https://eslint.org/docs/latest/rules/no-whitespace-before-property" | |
}, | |
fixable: "whitespace", | |
schema: [], | |
messages: { | |
unexpectedWhitespace: "Unexpected whitespace before property {{propName}}." | |
} | |
}, | |
create(context) { | |
const sourceCode = context.sourceCode; | |
//-------------------------------------------------------------------------- | |
// Helpers | |
//-------------------------------------------------------------------------- | |
/** | |
* Reports whitespace before property token | |
* @param {ASTNode} node the node to report in the event of an error | |
* @param {Token} leftToken the left token | |
* @param {Token} rightToken the right token | |
* @returns {void} | |
* @private | |
*/ | |
function reportError(node, leftToken, rightToken) { | |
context.report({ | |
node, | |
messageId: "unexpectedWhitespace", | |
data: { | |
propName: sourceCode.getText(node.property) | |
}, | |
fix(fixer) { | |
let replacementText = ""; | |
if (!node.computed && !node.optional && astUtils.isDecimalInteger(node.object)) { | |
/* | |
* If the object is a number literal, fixing it to something like 5.toString() would cause a SyntaxError. | |
* Don't fix this case. | |
*/ | |
return null; | |
} | |
// Don't fix if comments exist. | |
if (sourceCode.commentsExistBetween(leftToken, rightToken)) { | |
return null; | |
} | |
if (node.optional) { | |
replacementText = "?."; | |
} else if (!node.computed) { | |
replacementText = "."; | |
} | |
return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], replacementText); | |
} | |
}); | |
} | |
//-------------------------------------------------------------------------- | |
// Public | |
//-------------------------------------------------------------------------- | |
return { | |
MemberExpression(node) { | |
let rightToken; | |
let leftToken; | |
if (!astUtils.isTokenOnSameLine(node.object, node.property)) { | |
return; | |
} | |
if (node.computed) { | |
rightToken = sourceCode.getTokenBefore(node.property, astUtils.isOpeningBracketToken); | |
leftToken = sourceCode.getTokenBefore(rightToken, node.optional ? 1 : 0); | |
} else { | |
rightToken = sourceCode.getFirstToken(node.property); | |
leftToken = sourceCode.getTokenBefore(rightToken, 1); | |
} | |
if (sourceCode.isSpaceBetweenTokens(leftToken, rightToken)) { | |
reportError(node, leftToken, rightToken); | |
} | |
} | |
}; | |
} | |
}; |