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LiveRuntime

Struct LiveRuntime 

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pub struct LiveRuntime { /* private fields */ }
Expand description

An explicitly stepped language runtime with a bounded, replayable journal.

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impl LiveRuntime

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pub fn new() -> Self

Creates an empty session. The first accepted command must be LiveCommand::Load.

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pub fn apply(&mut self, command: LiveCommand) -> Result<LiveEvent, LiveError>

Applies a command transactionally and appends its exact event to the journal.

§Errors

Rejects oversized inputs, invalid runtime actions, or a full journal without changing the accepted runtime, sequence, or history.

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pub fn accept(&mut self, event: LiveEvent) -> Result<(), LiveError>

Accepts one replay event only when its sequence is exactly next.

§Errors

Rejects gaps, duplicates, and invalid commands without changing this session.

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pub fn restore(&mut self, history: LiveHistory) -> Result<(), LiveError>

Replays a complete retained history transactionally, then replaces this session.

§Errors

Rejects non-contiguous, oversized, or invalid histories while preserving state.

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pub fn snapshot(&self) -> Option<Snapshot>

Returns the accepted language state, if a revision has loaded.

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pub fn execution_state(&self) -> Option<(u64, bool)>

Returns the accepted runtime tick and terminal lifecycle state without cloning the scene or snapshot.

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pub fn render(&self) -> Result<RenderOutput, LiveError>

Returns validated generated render data for the accepted language state.

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pub fn history(&self) -> &LiveHistory

Returns the bounded retained journal suffix.

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pub const fn sequence(&self) -> u64

Returns the last globally assigned session sequence number.

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pub const fn source_revision(&self) -> u64

Returns the sequence of the last accepted source load.

Simulation ticks and invocations do not change this revision, so it can safely be used as an optimistic-concurrency precondition for source edits.

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pub fn edit_source( &mut self, base_revision: u64, source: ProgramSource, ) -> Result<LiveEvent, LiveError>

Compiles and accepts a complete source replacement at one exact base revision.

§Errors

Rejects stale or invalid candidates without changing the accepted runtime, journal, source revision, or playback state owned by the host.

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impl LiveRuntime

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pub fn ui_document(&self) -> Result<UiDocument, LiveError>

Returns source-revision-bound controls for this accepted session.

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pub fn ui_command(&self, event: &UiEvent) -> Result<LiveCommand, LiveError>

Validates a displayed control and resolves its Rust-owned callback command. The relay orders the returned command through Self::apply.

Trait Implementations§

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impl Default for LiveRuntime

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fn default() -> Self

Returns the “default value” for a type. Read more

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