Struct Codegen 

struct Codegen {
    struct_name: Ident,
    has_self: bool,
    sqlname: TokenStream,
    source: TokenStream,
    skip_display: bool,
}

What the shared codegen needs that is not arity specific.

Fields

struct_name: Ident

has_self: bool

True when the struct is defined at the call site, so expansion attaches an inherent method instead of defining a unit struct.

sqlname: TokenStream

source: TokenStream

The registry’s record of this function’s source, generated as members of the FuncName impl.

skip_display: bool

Suppresses the generated Display impl, so a call site whose SQL name depends on struct state can supply its own.