Type Reconstruction for the Linear π-Calculus with Composite and Equi-Recursive Types

We extend the linear π-calculus with composite and equi-recursive types in a way that enables the sharing of data containing linear values, provided that there is no overlapping access on such values. We show that the extended type system admits a complete type reconstruction algorithm and, as a by-product, we solve the problem of reconstruction for equi-recursive session types.