std::validate

Status: experimental

Trait-based field validation: implement Validate, collect FieldErrors into Errors.

Items

Item	Signature	Description
Validate	trait Validate	Implement on a struct to declare field-level validation rules.
FieldError	type FieldError	One field-scoped validation failure: dotted path, message, optional code.
Errors	type Errors	Aggregated FieldError set, indexable by dotted path.