Mirror: The magical sticky regex-based parser generator 🧙
Compile away thunks returning matchers in Babel plugin
+17
-3
+1
-3
src/babel/__snapshots__/plugin.test.js.snap
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-3
src/babel/__snapshots__/plugin.test.js.snap
···
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exports[`works with self-referential thunks 1`] = `
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"import { match, tag, _exec, _pattern } from 'reghex';
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var _inner_expression = _pattern(() => node);
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-
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const inner = function (state) {
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var index_1 = state.index;
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var node = [];
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var match;
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-
if (match = _exec(state, _inner_expression)) {
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if (match = node(state)) {
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node.push(match);
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} else {
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state.index = index_1;
+16
src/babel/transform.js
+16
src/babel/transform.js
···
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const hoistedExpressions = path.node.quasi.expressions.map(
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(expression, i) => {
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if (
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t.isArrowFunctionExpression(expression) &&
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t.isIdentifier(expression.body)
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) {
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expression = expression.body;
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} else if (
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(t.isFunctionExpression(expression) ||
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t.isArrowFunctionExpression(expression)) &&
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t.isBlockStatement(expression.body) &&
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expression.body.body.length === 1 &&
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t.isReturnStatement(expression.body.body[0]) &&
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t.isIdentifier(expression.body.body[0].argument)
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) {
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expression = expression.body.body[0].argument;
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}
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+
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if (
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t.isIdentifier(expression) &&
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path.scope.hasBinding(expression.name)
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) {