Trait Validate 

pub trait Validate {
    // Required method
    fn validate(&self) -> Result<(), ValidationError>;
}

Compile-time validation for Protocol Buffer messages with generated validators.

This trait is implemented by prost-protovalidate-build for messages that have only standard buf.validate rules (no CEL expressions). Validators run through monomorphized direct field access at runtime — no prost-reflect transcoding, no CEL interpreter on the hot path. For messages using CEL expressions or a mix of standard + CEL rules, use the runtime Validator instead.

Generated violations

Violations produced by generated validators have identical Violation::field_path(), Violation::rule_id(), Violation::rule_path(), and Violation::message() as the runtime validator. The enrichment accessors (Violation::field_descriptor(), Violation::field_value(), Violation::rule_descriptor(), Violation::rule_value()) return None — these require runtime reflection data not available in generated code.

Errors

Returns ValidationError containing all constraint violations found.

Required Methods

fn validate(&self) -> Result<(), ValidationError>

Validate this message against its buf.validate rules.

Errors

Returns ValidationError containing all constraint violations found.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors