+++ /dev/null
-/**
- * @fileoverview Validates newlines before and after dots
- * @author Greg Cochard
- */
-
-"use strict";
-
-const astUtils = require("./utils/ast-utils");
-
-//------------------------------------------------------------------------------
-// Rule Definition
-//------------------------------------------------------------------------------
-
-module.exports = {
- meta: {
- type: "layout",
-
- docs: {
- description: "enforce consistent newlines before and after dots",
- category: "Best Practices",
- recommended: false,
- url: "https://eslint.org/docs/rules/dot-location"
- },
-
- schema: [
- {
- enum: ["object", "property"]
- }
- ],
-
- fixable: "code",
-
- messages: {
- expectedDotAfterObject: "Expected dot to be on same line as object.",
- expectedDotBeforeProperty: "Expected dot to be on same line as property."
- }
- },
-
- create(context) {
-
- const config = context.options[0];
-
- // default to onObject if no preference is passed
- const onObject = config === "object" || !config;
-
- const sourceCode = context.getSourceCode();
-
- /**
- * Reports if the dot between object and property is on the correct loccation.
- * @param {ASTNode} node The `MemberExpression` node.
- * @returns {void}
- */
- function checkDotLocation(node) {
- const property = node.property;
- const dot = sourceCode.getTokenBefore(property);
-
- // `obj` expression can be parenthesized, but those paren tokens are not a part of the `obj` node.
- const tokenBeforeDot = sourceCode.getTokenBefore(dot);
-
- const textBeforeDot = sourceCode.getText().slice(tokenBeforeDot.range[1], dot.range[0]);
- const textAfterDot = sourceCode.getText().slice(dot.range[1], property.range[0]);
-
- if (onObject) {
- if (!astUtils.isTokenOnSameLine(tokenBeforeDot, dot)) {
- const neededTextAfterToken = astUtils.isDecimalIntegerNumericToken(tokenBeforeDot) ? " " : "";
-
- context.report({
- node,
- loc: dot.loc,
- messageId: "expectedDotAfterObject",
- fix: fixer => fixer.replaceTextRange([tokenBeforeDot.range[1], property.range[0]], `${neededTextAfterToken}.${textBeforeDot}${textAfterDot}`)
- });
- }
- } else if (!astUtils.isTokenOnSameLine(dot, property)) {
- context.report({
- node,
- loc: dot.loc,
- messageId: "expectedDotBeforeProperty",
- fix: fixer => fixer.replaceTextRange([tokenBeforeDot.range[1], property.range[0]], `${textBeforeDot}${textAfterDot}.`)
- });
- }
- }
-
- /**
- * Checks the spacing of the dot within a member expression.
- * @param {ASTNode} node The node to check.
- * @returns {void}
- */
- function checkNode(node) {
- if (!node.computed) {
- checkDotLocation(node);
- }
- }
-
- return {
- MemberExpression: checkNode
- };
- }
-};