Enum SystemPrompt 

#[non_exhaustive]
pub enum SystemPrompt {
    Plain(String),
    Blocks(Vec<SystemBlock>),
}

System prompt passed to the provider. Plain(String) matches the pre-caching API and is what From<String> / From<&str> produce — callers that don’t care about prompt caching keep using strings. Blocks(...) opts in to per-block cache breakpoints (Anthropic emits the system field as an array; other providers concatenate the block texts).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Plain(String)

Single string passed to the provider as-is. The default for callers that don’t care about prompt caching; matches From<&str> / From<String>.

Blocks(Vec<SystemBlock>)

Sequence of blocks with optional per-block cache breakpoints. Anthropic emits this as the wire system array; providers without per-block caching concatenate the texts.

Implementations

impl SystemPrompt

pub fn as_text(&self) -> String

Concatenate all blocks into a single string. Used by adapters without per-block caching (Chat Completions) and as a debug aid.

Trait Implementations

impl Clone for SystemPrompt

fn clone(&self) -> SystemPrompt

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SystemPrompt

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&str> for SystemPrompt

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<String> for SystemPrompt

fn from(value: String) -> Self

Converts to this type from the input type.