25 lines
988 B
Plaintext
25 lines
988 B
Plaintext
/**
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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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export default function extractValueFromBindExpression(value) {
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// eslint-disable-next-line global-require
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const getValue = require('.').default;
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const 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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const 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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