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30 lines
1.1 KiB
JavaScript
30 lines
1.1 KiB
JavaScript
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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 = extractValueFromBindExpression;
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/**
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* Extractor function for a BindExpression type value node.
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* A bind expression looks like `::this.foo`
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* This will return `this.foo.bind(this)` as the value to indicate its existence,
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* since we can not execute the function this.foo.bind(this) in a static environment.
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*
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* @param - value - AST Value object with type `BindExpression`
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* @returns - The extracted value converted to correct type.
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*/
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function extractValueFromBindExpression(value) {
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// eslint-disable-next-line global-require
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var getValue = require('./index.js').default;
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var callee = getValue(value.callee);
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// If value.object === null, the callee must be a MemberExpression.
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// https://github.com/babel/babylon/blob/master/ast/spec.md#bindexpression
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var object = value.object === null ? getValue(value.callee.object) : getValue(value.object);
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if (value.object && value.object.property) {
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return object + '.' + callee + '.bind(' + object + ')';
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}
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return callee + '.bind(' + object + ')';
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}
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