pub struct CelProgram { /* private fields */ }Expand description
A compiled CEL program.
Created at config publish time by CelProgram::compile. The
program is immutable and can be safely shared across threads (the
underlying AST is Send + Sync).
On the request path, call CelProgram::evaluate with a
CelContext containing the request variables.
Implementations§
Source§impl CelProgram
impl CelProgram
Sourcepub fn compile(source: &str) -> Result<Self, ParseErrors>
pub fn compile(source: &str) -> Result<Self, ParseErrors>
Compile a CEL expression from source.
This is the parse + type-check step. It should be called at config publish time, never on the request path.
Sourcepub fn evaluate(&self, context: &CelContext) -> CelResult
pub fn evaluate(&self, context: &CelContext) -> CelResult
Evaluate the program against a context.
This is the hot-path call. It walks the AST and resolves variables/functions against the context. No parsing or compilation happens here.
Sourcepub fn references(&self) -> Vec<String>
pub fn references(&self) -> Vec<String>
Returns the variables referenced by the program. Useful for validation (e.g. ensuring an expression only references allowed variables).
Trait Implementations§
Auto Trait Implementations§
impl Freeze for CelProgram
impl RefUnwindSafe for CelProgram
impl Send for CelProgram
impl Sync for CelProgram
impl Unpin for CelProgram
impl UnwindSafe for CelProgram
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