in src/Collection.js [248:269]
function _inferTypes(paths) {
let _types = [];
if (paths.length > 0 && Node.check(paths[0].node)) {
const nodeType = types[paths[0].node.type];
const sameType = paths.length === 1 ||
paths.every(path => nodeType.check(path.node));
if (sameType) {
_types = [nodeType.toString()].concat(
astTypes.getSupertypeNames(nodeType.toString())
);
} else {
// try to find a common type
_types = intersection(
paths.map(path => astTypes.getSupertypeNames(path.node.type))
);
}
}
return _types;
}