Struct EvalLimits 

#[non_exhaustive]
pub struct EvalLimits {
    pub max_func_args: u32,
    pub max_str_size: u32,
    pub max_list_len: u32,
    pub max_iterations: u32,
    pub max_file_bytes: u32,
}

Per-call resource limits enforced by the evaluator and its registered functions.

Per 70-security.md § 3.2 every cap is configurable; the defaults match the spec. Breaching any returns Err(EvalError::Limit { kind, ... }) — never a panic.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

max_func_args: u32

Maximum positional+variadic arg count per function call. Default: 64.

max_str_size: u32

Maximum rendered string size returned by a function (bytes). Default: 1 MiB.

max_list_len: u32

Maximum list/array size returned by a function. Default: 100 000.

max_iterations: u32

Maximum reduction iterations across a single evaluate call. Default: 1 000 000. Anti-DoS bound for nested for / recursive templates.

max_file_bytes: u32

Maximum read size for sandboxed file functions (bytes). Default: 4 MiB (matches the loader’s per-file cap).

Trait Implementations

impl Clone for EvalLimits

fn clone(&self) -> EvalLimits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EvalLimits

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

Formats the value using the given formatter.

impl Default for EvalLimits

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EvalLimits

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for EvalLimits

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for EvalLimits

fn eq(&self, other: &EvalLimits) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for EvalLimits

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for EvalLimits

impl Eq for EvalLimits

impl StructuralPartialEq for EvalLimits