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add support for async functions to type inferrence

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This commit is contained in:
Sebastian McKenzie 2015-06-06 03:33:32 +01:00
parent ba4550c953
commit 8c3aab9a26
1 changed files with 11 additions and 1 deletions
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12
src/babel/traversal/path/resolution.js
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@ -272,7 +272,17 @@ export function _inferTypeAnnotation(force?: boolean): ?Object {
if (callPath) {
var callee = callPath.resolve();
// todo: read typescript/flow interfaces
if (callee.isNodeType("Function")) return callee.node.returnType;
if (callee.isNodeType("Function")) {
if (callee.is("async")) {
if (callee.is("generator")) {
// todo
} else {
return t.genericTypeAnnotation(t.identifier("Promise"));
}
} else {
return callee.node.returnType;
}
}
}
}