28d7442aae
* parse async do expressions * add test cases * update test fixtures * chore: add syntax-async-do-expressions * generater support * fix: do not transform async do expressions * chore: add asyncDoExpressions to missing plugin helpers * update ast types * add more test cases * throw when asyncDoExpressions is enabled but not doExpressions * avoid add parentheses for async do expressions * address review comments * chore: update parser typings
30 lines
730 B
JavaScript
30 lines
730 B
JavaScript
import { declare } from "@babel/helper-plugin-utils";
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import syntaxDoExpressions from "@babel/plugin-syntax-do-expressions";
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export default declare(api => {
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api.assertVersion(7);
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return {
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name: "proposal-do-expressions",
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inherits: syntaxDoExpressions,
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visitor: {
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DoExpression: {
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exit(path) {
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const { node } = path;
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if (node.async) {
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// Async do expressions are not yet supported
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return;
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}
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const body = node.body.body;
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if (body.length) {
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path.replaceExpressionWithStatements(body);
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} else {
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path.replaceWith(path.scope.buildUndefinedNode());
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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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