Enum Opcode 

#[repr(u8)]
pub enum Opcode {
    OpenTag = 1,
    CloseTag = 2,
    VoidTag = 3,
    Text = 4,
    DynText = 5,
    DynAttr = 6,
    ShowIf = 7,
    ShowElse = 8,
    List = 10,
    IslandStart = 11,
    IslandEnd = 12,
    Prop = 18,
    Coalesce = 19,
}

Bytecode opcodes for the FMIR instruction stream.

Variants

OpenTag = 1

Open an element. str_idx(u32) + attr_count(u16) + [(key u32, val u32)]

CloseTag = 2

Close the named element. str_idx(u32)

VoidTag = 3

A void element, which takes no CLOSE_TAG. Same operands as OPEN_TAG.

Text = 4

Static text from the string table. str_idx(u32)

DynText = 5

Slot-bound text wrapped in <!--f:tN--> markers. slot_id(u16) + marker_id(u16)

DynAttr = 6

Slot-bound attribute on the tag currently being opened. attr_str_idx(u32) + slot_id(u16)

ShowIf = 7

Conditional region wrapped in <!--f:sN--> markers. slot_id(u16) + then_len(u32) + else_len(u32), then the two bodies separated by a Opcode::ShowElse byte.

ShowElse = 8

Separator byte between a SHOW_IF’s then- and else-bodies.

List = 10

Repeat a body once per element of an array slot, wrapped in <!--f:lN--> markers. slot_id(u16) + item_slot_id(u16) + body_len(u32)

IslandStart = 11

Begin an island region. island_id(u16)

IslandEnd = 12

End an island region. island_id(u16)

Prop = 18

Extract a named property from an Object slot into a target slot. Format: src_slot_id(u16) + prop_str_idx(u32) + target_slot_id(u16)

Coalesce = 19

Select fallback only when source is Null. source u16 + fallback u16 + destination u16.

Implementations

impl Opcode

pub fn from_byte(b: u8) -> Result<Self, IrError>

Convert a raw byte to an Opcode.

Trait Implementations

impl Clone for Opcode

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Opcode

impl Debug for Opcode

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

Formats the value using the given formatter.

impl Eq for Opcode

impl PartialEq for Opcode

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Opcode