Mojo function

struct_field_index_by_name

struct_field_index_by_name[T: AnyType, name: StringLiteral[value]]() -> Int

Returns the index of the field with the given name in struct T.

This function provides compile-time lookup of a struct field's index by name. It produces a compile error if the field name does not exist in the struct.

Note: T must be a concrete type, not a generic type parameter. See the module documentation for details on this limitation.

Parameters:

• ​T (AnyType): A concrete struct type.
• ​name (StringLiteral): The name of the field to look up.

Returns:

Int: The zero-based index of the field in the struct.

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