ffi: remove ffi-copy-type.

We don't need type copying because the need for this
was driven by the rtvec implementation, which assigned
a unique rtidx to the nodes in a type tree, requiring
like types to be separately instantiated.

* ffi.c (struct txr_ffi_type): Remove member dup.
(ffi_struct_dup, ffi_ptr_dup): Function removed.
(make_ffi_type_builtin, make_ffi_type_struct,
make_ffi_type_array): Don't initialize dup.
(ffi_copy_type): Function removed.
(ffi_type_compile): don't call ffi_copy_type.
(ffi_init): ffi-copy-type intrinsic removed.

* ffi.h (ffi_copy_type): Declaration removed.

1 files changed, 0 insertions, 1 deletions

diff --git a/ffi.h b/ffi.h
index df9e9628..77896b00 100644
--- a/ffi.h
+++ b/ffi.h
@@ -56,6 +56,5 @@ val ffi_make_call_desc(val ntotal, val nfixed, val rettype, val argtypes);
 val ffi_make_closure(val fun, val call_desc);
 mem_t *ffi_closure_get_fptr(val closure);
 val ffi_call_wrap(val ffi_call_desc, val fptr, val args);
-val ffi_copy_type(val type);
 val ffi_typedef(val name, val type);
 void ffi_init(void);