43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
"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 = shouldStoreRHSInTemporaryVariable;
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var _core = require("@babel/core");
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const {
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isObjectProperty,
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isArrayPattern,
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isObjectPattern,
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isAssignmentPattern,
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isRestElement,
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isIdentifier
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} = _core.types;
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function shouldStoreRHSInTemporaryVariable(node) {
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if (isArrayPattern(node)) {
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const nonNullElements = node.elements.filter(element => element !== null);
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if (nonNullElements.length > 1) return true;else return shouldStoreRHSInTemporaryVariable(nonNullElements[0]);
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} else if (isObjectPattern(node)) {
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const {
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properties
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} = node;
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if (properties.length > 1) return true;else if (properties.length === 0) return false;else {
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const firstProperty = properties[0];
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if (isObjectProperty(firstProperty)) {
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return shouldStoreRHSInTemporaryVariable(firstProperty.value);
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} else {
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return shouldStoreRHSInTemporaryVariable(firstProperty);
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}
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}
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} else if (isAssignmentPattern(node)) {
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return shouldStoreRHSInTemporaryVariable(node.left);
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} else if (isRestElement(node)) {
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if (isIdentifier(node.argument)) return true;
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return shouldStoreRHSInTemporaryVariable(node.argument);
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} else {
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return false;
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}
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}
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//# sourceMappingURL=shouldStoreRHSInTemporaryVariable.js.map
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