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36 rader
1.2 KiB
36 rader
1.2 KiB
/**
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* Library: isPromise
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* Makes sure that an Expression node is part of a promise.
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*/
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'use strict'
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const PROMISE_STATICS = require('./promise-statics')
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function isPromise(expression) {
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return (
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// hello.then()
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(expression.type === 'CallExpression' &&
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expression.callee.type === 'MemberExpression' &&
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expression.callee.property.name === 'then') ||
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// hello.catch()
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(expression.type === 'CallExpression' &&
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expression.callee.type === 'MemberExpression' &&
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expression.callee.property.name === 'catch') ||
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// hello.finally()
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(expression.type === 'CallExpression' &&
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expression.callee.type === 'MemberExpression' &&
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expression.callee.property.name === 'finally') ||
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// somePromise.ANYTHING()
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(expression.type === 'CallExpression' &&
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expression.callee.type === 'MemberExpression' &&
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isPromise(expression.callee.object)) ||
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// Promise.STATIC_METHOD()
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(expression.type === 'CallExpression' &&
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expression.callee.type === 'MemberExpression' &&
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expression.callee.object.type === 'Identifier' &&
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expression.callee.object.name === 'Promise' &&
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PROMISE_STATICS[expression.callee.property.name])
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)
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}
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module.exports = isPromise
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