Module generate 

Codegen shared by every scalar function arity.

Structs

Codegen 🔒

What the shared codegen needs that is not arity specific.

Functions

expand 🔒

Wraps an arity’s trait impl with the parts every arity shares: the unit-struct definition (unless has_self), the Display impl (unless skip_display), the FuncName impl, and the annotated function itself.

generate 🔒

Generates the trait impl for one #[sqlfunc]-annotated function, together with the items expand wraps around it.

output_type_and_introduces_nulls 🔒

The column type expression the output-type method starts from, and the introduces_nulls method if one is generated.

override_methods 🔒

One fn name(&self) -> Ret { expr } per modifier present in mods, in the arity table’s order rather than the attribute’s order, so the generated code is stable against how a call site happens to spell its modifiers.

sql_params 🔒

The SQL arguments’ pre-erasure types, and the names call binds them to.