/**
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* @fileoverview enforce unified spacing in mustache interpolations.
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* @author Armano
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*/
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'use strict'
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// ------------------------------------------------------------------------------
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// Requirements
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// ------------------------------------------------------------------------------
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const utils = require('../utils')
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// ------------------------------------------------------------------------------
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// Rule Definition
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// ------------------------------------------------------------------------------
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module.exports = {
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meta: {
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type: 'layout',
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docs: {
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description: 'enforce unified spacing in mustache interpolations',
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categories: ['vue3-strongly-recommended', 'strongly-recommended'],
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url: 'https://eslint.vuejs.org/rules/mustache-interpolation-spacing.html'
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},
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fixable: 'whitespace',
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schema: [
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{
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enum: ['always', 'never']
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}
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]
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},
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/** @param {RuleContext} context */
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create(context) {
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const options = context.options[0] || 'always'
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const template =
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context.parserServices.getTemplateBodyTokenStore &&
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context.parserServices.getTemplateBodyTokenStore()
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// ----------------------------------------------------------------------
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// Public
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// ----------------------------------------------------------------------
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return utils.defineTemplateBodyVisitor(context, {
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/** @param {VExpressionContainer} node */
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'VExpressionContainer[expression!=null]'(node) {
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const openBrace = template.getFirstToken(node)
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const closeBrace = template.getLastToken(node)
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if (
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!openBrace ||
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!closeBrace ||
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openBrace.type !== 'VExpressionStart' ||
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closeBrace.type !== 'VExpressionEnd'
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) {
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return
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}
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const firstToken = template.getTokenAfter(openBrace, {
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includeComments: true
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})
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const lastToken = template.getTokenBefore(closeBrace, {
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includeComments: true
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})
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if (options === 'always') {
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if (openBrace.range[1] === firstToken.range[0]) {
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context.report({
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node: openBrace,
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message: "Expected 1 space after '{{', but not found.",
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fix: (fixer) => fixer.insertTextAfter(openBrace, ' ')
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})
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}
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if (closeBrace.range[0] === lastToken.range[1]) {
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context.report({
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node: closeBrace,
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message: "Expected 1 space before '}}', but not found.",
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fix: (fixer) => fixer.insertTextBefore(closeBrace, ' ')
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})
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}
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} else {
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if (openBrace.range[1] !== firstToken.range[0]) {
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context.report({
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loc: {
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start: openBrace.loc.start,
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end: firstToken.loc.start
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},
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message: "Expected no space after '{{', but found.",
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fix: (fixer) =>
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fixer.removeRange([openBrace.range[1], firstToken.range[0]])
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})
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}
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if (closeBrace.range[0] !== lastToken.range[1]) {
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context.report({
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loc: {
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start: lastToken.loc.end,
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end: closeBrace.loc.end
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},
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message: "Expected no space before '}}', but found.",
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fix: (fixer) =>
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fixer.removeRange([lastToken.range[1], closeBrace.range[0]])
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})
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}
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}
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}
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})
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}
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}
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