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Rosanny Sihombing authoredThis reverts merge request !169
5b5df7d0
/** * @fileoverview Rule to disallow whitespace before properties * @author Kai Cataldo */"use strict";//------------------------------------------------------------------------------// Requirements//------------------------------------------------------------------------------const astUtils = require("./utils/ast-utils");//------------------------------------------------------------------------------// Rule Definition//------------------------------------------------------------------------------module.exports = { meta: { type: "layout", docs: { description: "disallow whitespace before properties", category: "Stylistic Issues", recommended: false, url: "https://eslint.org/docs/rules/no-whitespace-before-property" }, fixable: "whitespace", schema: [], messages: { unexpectedWhitespace: "Unexpected whitespace before property {{propName}}." } }, create(context) { const sourceCode = context.getSourceCode(); //-------------------------------------------------------------------------- // 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.
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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);
}
}
};
}
};