Struct ParameterValue 

pub struct ParameterValue {
    pub specified_type: Option<Type>,
    pub default_value: Option<Value>,
    pub src_ref: SrcRef,
}

Parameter value is the result of evaluating a parameter

Fields

specified_type: Option<Type>

Parameter type

default_value: Option<Value>

Parameter default

src_ref: SrcRef

Source code reference

Implementations

impl ParameterValue

pub fn invalid(src_ref: SrcRef) -> Self

Creates an invalid parameter value, in case an error occurred during evaluation

pub fn type_matches(&self, ty: &Type) -> bool

Check if type of this parameter value matches the given one

Trait Implementations

impl Clone for ParameterValue

fn clone(&self) -> ParameterValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParameterValue

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

Formats the value using the given formatter.

impl Default for ParameterValue

fn default() -> ParameterValue

Returns the “default value” for a type.

impl Display for ParameterValue

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

Formats the value using the given formatter.

impl Eval<ParameterValue> for Parameter

fn eval(&self, context: &mut Context) -> EvalResult<ParameterValue>

Evaluate Parameter into ParameterValue.

impl SrcReferrer for ParameterValue

fn src_ref(&self) -> SrcRef

Return source code reference.

fn source_hash(&self) -> u64

Return source code hash.

impl Ty for ParameterValue

fn ty(&self) -> Type

Return effective type

Returns any specified_type or the type of the default_value. Panics if neither of both is available.