Struct FunctionSignatureBuilder

pub struct FunctionSignatureBuilder(/* private fields */);

Represents a function signature builder.

Implementations

impl FunctionSignatureBuilder

pub fn new() -> Self

Constructs a new function signature builder.

pub fn min_version(self, version: SupportedVersion) -> Self

Sets the minimum required version for the function signature.

pub fn type_parameter( self, name: &'static str, constraint: impl Constraint + 'static, ) -> Self

Adds a constrained type parameter to the function signature.

pub fn any_type_parameter(self, name: &'static str) -> Self

Adds an unconstrained type parameter to the function signature.

pub fn parameter(self, ty: impl Into<FunctionalType>) -> Self

Adds a parameter to the function signature.

pub fn ret(self, ret: impl Into<FunctionalType>) -> Self

Sets the return value in the function signature.

If this is not called, the function signature will return a Union type.

pub fn required(self, required: usize) -> Self

Sets the number of required parameters in the function signature.

pub fn build(self) -> FunctionSignature

Consumes the builder and produces the function signature.

Panics

This method panics if the function signature is invalid.

Trait Implementations

impl Debug for FunctionSignatureBuilder

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

Formats the value using the given formatter.

impl Default for FunctionSignatureBuilder

fn default() -> FunctionSignatureBuilder

Returns the “default value” for a type.