Struct PromptTemplate 

pub struct PromptTemplate { /* private fields */ }

A compiled prompt template.

Parse once with PromptTemplate::from_str, render many times with PromptTemplate::render.

Implementations

impl PromptTemplate

pub fn from_str(template: &str) -> Result<Self, TemplateError>

Parse a template string and validate variable names and filters.

Errors

Returns TemplateError::ParseError if there are unclosed {{ blocks, or TemplateError::InvalidFilter for unrecognised filters.

pub fn source(&self) -> &str

Return the original template source string.

pub fn render(&self, ctx: &TemplateContext) -> Result<String, TemplateError>

Render the template using ctx.

Errors

• TemplateError::MissingVariable — a variable has no binding and no default filter.
• TemplateError::InvalidFilter — an unrecognised filter was used.

Trait Implementations

impl Clone for PromptTemplate

fn clone(&self) -> PromptTemplate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PromptTemplate

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

Formats the value using the given formatter.