modelrelay 6.5.0

Rust SDK for the ModelRelay API
Documentation 
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//! Extension traits for generated types.
//!
//! These traits add ergonomic methods to generated types without modifying them.
//! This follows the "extension trait" pattern to add methods to foreign types.

use std::fmt;

use super::{MessageRole, ModelId, NodeId, PlanHash, Sha256Hash, TierCode};

// ============================================================================
// Display implementations for string newtypes
// ============================================================================

impl fmt::Display for NodeId {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        // NodeId derefs to String
        write!(f, "{}", &**self)
    }
}

impl fmt::Display for ModelId {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", &**self)
    }
}

impl fmt::Display for PlanHash {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", &**self)
    }
}

impl fmt::Display for Sha256Hash {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", &**self)
    }
}

impl fmt::Display for TierCode {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", &**self)
    }
}

/// Extension trait for MessageRole providing convenience methods.
pub trait MessageRoleExt {
    /// Returns the string representation of the role.
    fn as_str(&self) -> &'static str;
}

impl MessageRoleExt for MessageRole {
    fn as_str(&self) -> &'static str {
        match self {
            MessageRole::User => "user",
            MessageRole::Assistant => "assistant",
            MessageRole::System => "system",
            MessageRole::Tool => "tool",
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn message_role_as_str() {
        assert_eq!(MessageRole::User.as_str(), "user");
        assert_eq!(MessageRole::Assistant.as_str(), "assistant");
        assert_eq!(MessageRole::System.as_str(), "system");
        assert_eq!(MessageRole::Tool.as_str(), "tool");
    }

    #[test]
    fn message_role_display() {
        assert_eq!(MessageRole::User.to_string(), "user");
        assert_eq!(MessageRole::Assistant.to_string(), "assistant");
    }
}