Struct BuiltinMetadata 

pub struct BuiltinMetadata {
    pub name: &'static str,
    pub signature: &'static str,
    pub description: &'static str,
    pub category: &'static str,
    pub parameters: &'static [BuiltinParam],
    pub return_type: &'static str,
    pub example: Option<&'static str>,
}

Metadata for a builtin function, generated by proc-macro at compile time.

Uses &'static str for zero-allocation at runtime.

Fields

name: &'static str

Function name as exposed to Shape (e.g., “sma”, “abs”)

signature: &'static str

Full signature (e.g., “sma(column: Column, period: Number) -> Column”)

description: &'static str

Description extracted from doc comments

category: &'static str

Category (e.g., “Indicator”, “Data”, “Trading”)

parameters: &'static [BuiltinParam]

Parameter information

return_type: &'static str

Return type

example: Option<&'static str>

Optional example code

Trait Implementations

impl Clone for BuiltinMetadata

fn clone(&self) -> BuiltinMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuiltinMetadata

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

Formats the value using the given formatter.

impl From<&BuiltinMetadata> for FunctionInfo

fn from(meta: &BuiltinMetadata) -> Self

Converts to this type from the input type.