evaluate_closed_function

Julia

evaluate_closed_function(name::String, args::AbstractVector)

evaluate_closed_function(name::String, args::Vector) -> Any

Dispatch a closed function call. name is the dotted-module spec name (e.g. "datetime.julian_day"); args is a vector of evaluated argument values. Integer-typed results are returned as Int32 to make the integer contract explicit to callers; float-typed results are Float64.

This entry point PINS its float-typed results to Float64 (it infers as the concrete Union{Float64,Int32}, which the tree-walk RHS depends on for its zero-allocation property). Most of the registry tolerates an AD dual argument anyway, because the answer does not depend on the dual part:

• datetime.year … datetime.is_leap_year — piecewise constant in their argument, so they take the dual’s primal (see _value) and return Int32.
• interp.searchsorted — the query may be a dual; the result is a discrete Int32 index that carries no derivative.

The three float-RETURNING functions (interp.linear, interp.bilinear, datetime.julian_day) cannot honour the Float64 pin on a dual, so they throw here. Differentiating call sites use evaluate_closed_function_ad instead, which is the same registry without the pin.

For interp.searchsorted the second argument must be the table (a Vector{<:Real}) — the caller is responsible for extracting the array from a const-op AST node before invoking this function.

Throws ClosedFunctionError on contract violations.

Source

TypeScript

TypeScript does not export this function.

Python

Python does not export this function.

Rust

pub fn evaluate_closed_function(name: &str, args: &[ClosedArg]) -> Result<ClosedValue, ClosedFunctionError>

Dispatch a closed function call. name is the dotted-module spec path (e.g. "datetime.julian_day"); args is the list of evaluated argument values. Returns ClosedValue so callers can preserve the integer/float distinction; promotion to f64 is available via ClosedValue::as_f64.

Source · Rust docs

Go

func EvaluateClosedFunction(name string, args []any) (any, error)

EvaluateClosedFunction dispatches a closed function call. name is the dotted-module spec name (e.g. “datetime.julian_day”); args is a slice of evaluated argument values. Integer-typed results are returned as int32 to make the integer contract explicit; float-typed results are float64. For interp.searchsorted, the second argument MUST be the inline table extracted from the const-op AST node — the caller is responsible for that extraction.

Returns *ClosedFunctionError on contract violations.

Source · Go docs