Enum ParametricInstruction 

pub enum ParametricInstruction {
    Drop,
    Select(Option<Vec<ValueType>>),
}

Instructions in this group can operate on operands of any value type.

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

Examples

use wasm_ast::{ParametricInstruction, Instruction, ValueType};

assert_eq!(
    Instruction::Parametric(ParametricInstruction::Drop),
    ParametricInstruction::Drop.into()
);
assert_eq!(
    Instruction::Parametric(ParametricInstruction::Select(Some(vec![ValueType::I32]))),
    ParametricInstruction::Select(Some(vec![ValueType::I32])).into()
);
assert_eq!(
    Instruction::Parametric(ParametricInstruction::Select(Some(vec![]))),
    ParametricInstruction::Select(Some(vec![])).into()
);
assert_eq!(
    Instruction::Parametric(ParametricInstruction::Select(None)),
    ParametricInstruction::Select(None).into()
);

Variants

Drop

The 𝖽𝗋𝗈𝗉 instruction simply throws away a single operand.

Select(Option<Vec<ValueType>>)

The 𝗌𝖾𝗅𝖾𝖼𝗍 instruction selects one of its first two operands based on whether its third operand is zero or not. It may include a value type determining the type of these operands. If missing, the operands must be of numeric type.

Trait Implementations

impl Clone for ParametricInstruction

fn clone(&self) -> ParametricInstruction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParametricInstruction

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

Formats the value using the given formatter.

impl From<ParametricInstruction> for Instruction

fn from(instruction: ParametricInstruction) -> Self

Converts to this type from the input type.

impl PartialEq for ParametricInstruction

fn eq(&self, other: &ParametricInstruction) -> 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 Eq for ParametricInstruction

impl StructuralPartialEq for ParametricInstruction