79 lines
2.6 KiB
JavaScript
79 lines
2.6 KiB
JavaScript
/**
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* @author Toru Nagashima <https://github.com/mysticatea>
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* See LICENSE file in root directory for full license.
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*/
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"use strict"
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const { isOpeningBracketToken, isClosingBracketToken } = require("eslint-utils")
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module.exports = {
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meta: {
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docs: {
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description: "disallow property shorthands.",
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category: "ES2015",
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recommended: false,
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url:
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"http://mysticatea.github.io/eslint-plugin-es/rules/no-property-shorthands.html",
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},
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fixable: "code",
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messages: {
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forbidden: "ES2015 property shorthands are forbidden.",
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},
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schema: [],
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type: "problem",
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},
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create(context) {
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const sourceCode = context.getSourceCode()
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/**
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* Fixes a FunctionExpression node by making it into a longform property.
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* @param {SourceCodeFixer} fixer The fixer object
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* @param {ASTNode} node A `Property` node that has a `FunctionExpression` as its value
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* @returns {object} A fix for this node
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*/
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function makeFunctionLongform(fixer, node) {
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const firstKeyToken = node.computed
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? sourceCode.getTokenBefore(node.key, isOpeningBracketToken)
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: sourceCode.getFirstToken(node.key)
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const lastKeyToken = node.computed
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? sourceCode.getTokenAfter(node.key, isClosingBracketToken)
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: sourceCode.getLastToken(node.key)
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const keyText = sourceCode.text.slice(
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firstKeyToken.range[0],
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lastKeyToken.range[1]
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)
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let functionHeader = "function"
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if (node.value.async) {
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functionHeader = `async ${functionHeader}`
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}
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if (node.value.generator) {
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functionHeader = `${functionHeader}*`
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}
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return fixer.replaceTextRange(
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[node.range[0], lastKeyToken.range[1]],
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`${keyText}: ${functionHeader}`
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)
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}
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return {
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"ObjectExpression > :matches(Property[method=true], Property[shorthand=true])"(
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node
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) {
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context.report({
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node,
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messageId: "forbidden",
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fix: node.method
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? fixer => makeFunctionLongform(fixer, node)
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: fixer =>
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fixer.insertTextAfter(
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node.key,
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`: ${node.key.name}`
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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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