30 lines
835 B
JavaScript
30 lines
835 B
JavaScript
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/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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function getComments(path) {
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const allComments = path.hub.file.ast.comments;
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if (path.node.leadingComments) {
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// Babel AST includes comments.
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return path.node.leadingComments;
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}
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// In Hermes AST we need to find the comments by range.
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const comments = [];
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let line = path.node.loc.start.line;
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let i = allComments.length - 1;
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while (i >= 0 && allComments[i].loc.end.line >= line) {
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i--;
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}
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while (i >= 0 && allComments[i].loc.end.line === line - 1) {
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line = allComments[i].loc.start.line;
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allComments[i] |> comments.unshift(%);
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i--;
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}
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return comments;
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}
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module.exports = getComments;
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