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Merge pull request #765 from mzgoddard/execute-is-promise-deopt
Write src/engine/execute so it can be optimized
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commit
b07bbd4745
1 changed files with 5 additions and 1 deletions
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@ -15,7 +15,11 @@ const blockUtility = new BlockUtility();
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* @return {boolean} True if the value appears to be a Promise.
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*/
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const isPromise = function (value) {
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return value && value.then && typeof value.then === 'function';
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return (
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value !== null &&
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typeof value === 'object' &&
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typeof value.then === 'function'
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);
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};
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/**
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