Struct IrModule 

#[non_exhaustive]
pub struct IrModule {
    pub header: IrHeader,
    pub strings: StringTable,
    pub slots: SlotTable,
    pub opcodes: Vec<u8>,
    pub islands: IslandTableParsed,
    /* private fields */
}

A fully parsed and validated IR module, ready for walking.

Marked #[non_exhaustive]: the module carries derived lookup indices that must stay in sync with the tables, so it can only be built by parse.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

header: IrHeader

Parsed 16-byte file header.

strings: StringTable

The module’s string table — every name, literal and attribute value.

slots: SlotTable

The module’s slot declarations, including their defaults.

opcodes: Vec<u8>

Raw opcode stream; the walker interprets it on the fly.

islands: IslandTableParsed

The module’s island declarations.

Implementations

impl IrModule

pub fn parse(data: &[u8]) -> Result<Self, IrError>

Parse a complete FMIR binary into a validated IrModule.

pub fn slot_entry(&self, slot_id: u16) -> Option<&SlotEntry>

Look up a slot table entry by slot_id in O(1).

pub fn island_entry(&self, island_id: u16) -> Option<&IslandEntry>

Look up an island table entry by island id in O(1).

pub fn validate(&self) -> Result<(), IrError>

Validate cross-table references and opcode-stream structure.

Runs once at parse time (O(n) in the bytecode length) so the walker can stay cheap and so malformed IR fails at load rather than rendering mystery HTML on some later request.

pub fn slot_id_by_name(&self, name: &str) -> Option<u16>

Look up a slot ID by its name. Returns None if no slot with that name exists.

DUPLICATE-NAME RULE: slot names are not required to be unique — the compiler derives some of them per-element (text:<index>, attr:class) rather than per-module — so a name can address more than one slot. The whole crate resolves that collision the same way: the first entry in slot-table order wins, here, in crate::slot::SlotData::from_json, and in the walker’s island-props builder. They used to disagree three ways (first, last, and last-by-ascending-slot-id), so setting a value by name filled one slot and left its twin blank while the island’s props reported a third answer.

Verified by: crates/forma-ir/src/parser.rs > “duplicate_slot_names_resolve_first_wins_everywhere”

Trait Implementations

impl Clone for IrModule

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IrModule

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

Formats the value using the given formatter.