a4170b5e32
* Transform for F#-style await Inludes support for optimizing single-parameter arrow functions * Wait until optimization before pushing placeholder into scope
24 lines
658 B
JavaScript
24 lines
658 B
JavaScript
import { types as t } from "@babel/core";
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import buildOptimizedSequenceExpression from "./buildOptimizedSequenceExpression";
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const minimalVisitor = {
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BinaryExpression(path) {
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const { scope, node } = path;
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const { operator, left, right } = node;
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if (operator !== "|>") return;
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const placeholder = scope.generateUidIdentifierBasedOnNode(left);
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const call = t.callExpression(right, [t.cloneNode(placeholder)]);
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path.replaceWith(
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buildOptimizedSequenceExpression({
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assign: t.assignmentExpression("=", t.cloneNode(placeholder), left),
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call,
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path,
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}),
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);
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},
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};
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export default minimalVisitor;
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