Macro ocaml_interop::impl_from_ocaml_record [−][src]
macro_rules! impl_from_ocaml_record {
($ocaml_typ : ident => $rust_typ : ident
{ $($field : ident : $ocaml_field_typ : ty), + $(,) ? }) => { ... };
($both_typ : ident { $($t : tt) * }) => { ... };
($ocaml_typ : ident => $rust_typ :
ident($($field : ident : $ocaml_field_typ : ty), + $(,) ?)) => { ... };
($both_typ : ident($($t : tt) *)) => { ... };
}
Expand description
Implements FromOCaml
for mapping an OCaml record into a Rust record.
It is important that the order of the fields remains the same as in the OCaml type declaration.
Examples
struct MyStruct {
int_field: i64,
string_field: String,
}
// Assuming an OCaml record declaration like:
//
// type my_struct = {
// int_field: int;
// string_field: string;
// }
//
// NOTE: What is important is the order of the fields, not their names.
impl_from_ocaml_record! {
// Optionally, if Rust and OCaml types don't match:
// OCamlType => RustType { ... }
MyStruct {
int_field: OCamlInt,
string_field: String,
}
}