main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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File size:
988 bytes
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| [d565449] | 1 | /**
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| 2 | * Extractor function for a BindExpression type value node.
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| 3 | * A bind expression looks like `::this.foo`
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| 4 | * This will return `this.foo.bind(this)` as the value to indicate its existence,
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| 5 | * since we can not execute the function this.foo.bind(this) in a static environment.
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| 6 | *
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| 7 | * @param - value - AST Value object with type `BindExpression`
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| 8 | * @returns - The extracted value converted to correct type.
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| 9 | */
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| 10 | export default function extractValueFromBindExpression(value) {
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| 11 | // eslint-disable-next-line global-require
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| 12 | const getValue = require('.').default;
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| 13 | const callee = getValue(value.callee);
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| 14 |
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| 15 | // If value.object === null, the callee must be a MemberExpression.
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| 16 | // https://github.com/babel/babylon/blob/master/ast/spec.md#bindexpression
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| 17 | const object = value.object === null ? getValue(value.callee.object) : getValue(value.object);
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| 18 |
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| 19 | if (value.object && value.object.property) {
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| 20 | return `${object}.${callee}.bind(${object})`;
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| 21 | }
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| 22 |
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| 23 | return `${callee}.bind(${object})`;
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| 24 | }
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