Enum VariableInstruction 

pub enum VariableInstruction {
    LocalGet(LocalIndex),
    LocalSet(LocalIndex),
    LocalTee(LocalIndex),
    GlobalGet(GlobalIndex),
    GlobalSet(GlobalIndex),
}

Variable instructions are concerned with access to local or global variables. These instructions get or set the values of variables, respectively. The 𝗅𝗈𝖼𝖺𝗅.𝗍𝖾𝖾 instruction is like 𝗅𝗈𝖼𝖺𝗅.𝗌𝖾𝗍 but also returns its argument.

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

Examples

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

assert_eq!(
    Instruction::Variable(VariableInstruction::LocalGet(0)),
    VariableInstruction::LocalGet(0).into()
);
assert_eq!(
    Instruction::Variable(VariableInstruction::LocalSet(1)),
    VariableInstruction::LocalSet(1).into()
);
assert_eq!(
    Instruction::Variable(VariableInstruction::LocalTee(1)),
    VariableInstruction::LocalTee(1).into()
);
assert_eq!(
    Instruction::Variable(VariableInstruction::GlobalGet(0)),
    VariableInstruction::GlobalGet(0).into()
);
assert_eq!(
    Instruction::Variable(VariableInstruction::GlobalSet(1)),
    VariableInstruction::GlobalSet(1).into()
);

Variants

LocalGet(LocalIndex)

local.get localidx Get the value of a local variable.

LocalSet(LocalIndex)

local.set localidx Set the value of a local variable.

LocalTee(LocalIndex)

local.tee localidx The 𝗅𝗈𝖼𝖺𝗅.𝗍𝖾𝖾 instruction is like 𝗅𝗈𝖼𝖺𝗅.𝗌𝖾𝗍 but also returns its argument.

GlobalGet(GlobalIndex)

global.get globalidx Get the value of a global variable.

GlobalSet(GlobalIndex)

global.set globalidx Set the value of a global variable.

Trait Implementations

impl Clone for VariableInstruction

fn clone(&self) -> VariableInstruction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VariableInstruction

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

Formats the value using the given formatter.

impl From<VariableInstruction> for Instruction

fn from(instruction: VariableInstruction) -> Self

Converts to this type from the input type.

impl PartialEq for VariableInstruction

fn eq(&self, other: &VariableInstruction) -> 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 VariableInstruction

impl Eq for VariableInstruction

impl StructuralPartialEq for VariableInstruction