75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var helperPluginUtils = require('@babel/helper-plugin-utils');
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var pluginProposalOptionalChaining = require('@babel/plugin-proposal-optional-chaining');
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var helperSkipTransparentExpressionWrappers = require('@babel/helper-skip-transparent-expression-wrappers');
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var core = require('@babel/core');
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function matchAffectedArguments(argumentNodes) {
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const spreadIndex = argumentNodes.findIndex(node => core.types.isSpreadElement(node));
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return spreadIndex >= 0 && spreadIndex !== argumentNodes.length - 1;
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}
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function shouldTransform(path) {
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let optionalPath = path;
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const chains = [];
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while (optionalPath.isOptionalMemberExpression() || optionalPath.isOptionalCallExpression()) {
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const {
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node
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} = optionalPath;
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chains.push(node);
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if (optionalPath.isOptionalMemberExpression()) {
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optionalPath = helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers(optionalPath.get("object"));
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} else if (optionalPath.isOptionalCallExpression()) {
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optionalPath = helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers(optionalPath.get("callee"));
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}
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}
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for (let i = 0; i < chains.length; i++) {
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const node = chains[i];
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if (core.types.isOptionalCallExpression(node) && matchAffectedArguments(node.arguments)) {
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if (node.optional) {
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return true;
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}
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const callee = chains[i + 1];
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if (core.types.isOptionalMemberExpression(callee, {
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optional: true
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})) {
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return true;
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}
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}
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}
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return false;
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}
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var index = helperPluginUtils.declare(api => {
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api.assertVersion(7);
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const noDocumentAll = api.assumption("noDocumentAll");
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const pureGetters = api.assumption("pureGetters");
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return {
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name: "bugfix-v8-spread-parameters-in-optional-chaining",
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visitor: {
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"OptionalCallExpression|OptionalMemberExpression"(path) {
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if (shouldTransform(path)) {
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pluginProposalOptionalChaining.transform(path, {
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noDocumentAll,
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pureGetters
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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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exports.default = index;
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//# sourceMappingURL=index.js.map
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