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49 lines
1.5 KiB
49 lines
1.5 KiB
3 years ago
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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/**
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* Get the name of variable that contains node
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*
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* @param {Path} path to the node
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*
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* @return {String} The target
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*/
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var _default = t => path => {
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let namedNode;
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path.find(path => {
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// X = styled
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if (path.isAssignmentExpression()) {
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namedNode = path.node.left; // const X = { Y: styled }
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} else if (path.isObjectProperty()) {
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namedNode = path.node.key; // class Y { (static) X = styled }
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} else if (path.isClassProperty()) {
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namedNode = path.node.key; // const X = styled
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} else if (path.isVariableDeclarator()) {
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namedNode = path.node.id;
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} else if (path.isStatement()) {
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// we've hit a statement, we should stop crawling up
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return true;
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} // we've got an displayName (if we need it) no need to continue
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// However if this is an assignment expression like X = styled then we
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// want to keep going up incase there is Y = X = styled; in this case we
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// want to pick the outer name because react-refresh will add HMR variables
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// like this: X = _a = styled. We could also consider only doing this if the
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// name starts with an underscore.
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if (namedNode && !path.isAssignmentExpression()) return true;
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}); // foo.bar -> bar
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if (t.isMemberExpression(namedNode)) {
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namedNode = namedNode.property;
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} // identifiers are the only thing we can reliably get a name from
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return t.isIdentifier(namedNode) ? namedNode.name : undefined;
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};
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exports.default = _default;
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