Enum ReferenceInstruction 

pub enum ReferenceInstruction {
    Null(ReferenceType),
    IsNull,
    Function(FunctionIndex),
}

Instructions in this group are concerned with accessing references. These instruction produce a null value, check for a null value, or produce a reference to a given function, respectively.

See https://webassembly.github.io/spec/core/syntax/instructions.html#reference-instructions

Examples

use wasm_ast::{ReferenceInstruction, Instruction, ReferenceType};

assert_eq!(
    Instruction::Reference(ReferenceInstruction::Null(ReferenceType::External)),
    ReferenceInstruction::Null(ReferenceType::External).into()
);
assert_eq!(
    Instruction::Reference(ReferenceInstruction::IsNull),
    ReferenceInstruction::IsNull.into()
);
assert_eq!(
    Instruction::Reference(ReferenceInstruction::Function(3)),
    ReferenceInstruction::Function(3).into()
);

Variants

Null(ReferenceType)

ref.null Produce a null value.

IsNull

ref.is_null Check for a null value.

Function(FunctionIndex)

ref.func funcidx Produce a reference to a given function.

Trait Implementations

impl Clone for ReferenceInstruction

fn clone(&self) -> ReferenceInstruction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReferenceInstruction

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

Formats the value using the given formatter.

impl From<ReferenceInstruction> for Instruction

fn from(instruction: ReferenceInstruction) -> Self

Converts to this type from the input type.

impl PartialEq for ReferenceInstruction

fn eq(&self, other: &ReferenceInstruction) -> 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 Copy for ReferenceInstruction

impl Eq for ReferenceInstruction

impl StructuralPartialEq for ReferenceInstruction