40 lines
1 KiB
JavaScript
40 lines
1 KiB
JavaScript
/**
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* @author Yosuke Ota
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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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module.exports = {
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meta: {
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docs: {
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description: "disallow top-level `await`.",
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category: "ES2022",
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recommended: false,
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url: "http://eslint-community.github.io/eslint-plugin-es-x/rules/no-top-level-await.html",
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},
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fixable: null,
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messages: {
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forbidden: "ES2022 top-level 'await' is 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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let functionDepth = 0
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return {
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":function"() {
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functionDepth++
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},
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":function:exit"() {
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functionDepth--
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},
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"AwaitExpression, ForOfStatement[await=true]"(node) {
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if (functionDepth > 0) {
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// not top-level
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return
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}
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context.report({ node, messageId: "forbidden" })
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},
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}
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},
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}
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