Struct NullRuntime 

pub struct NullRuntime { /* private fields */ }

Stub runtime that refuses every script call.

Implementations

impl NullRuntime

pub fn new() -> Self

Construct a new NullRuntime with empty metadata.

Trait Implementations

impl Debug for NullRuntime

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

Formats the value using the given formatter.

impl Default for NullRuntime

fn default() -> NullRuntime

Returns the “default value” for a type.

impl XfaJsRuntime for NullRuntime

fn init(&mut self) -> Result<(), SandboxError>

One-time initialisation. Idempotent.

fn reset_for_new_document(&mut self) -> Result<(), SandboxError>

Reset per-document state (memory budget, instruction counter, any cached compiled scripts). Called once per flatten.

fn execute_script( &mut self, _activity: Option<&str>, _body: &str, ) -> Result<RuntimeOutcome, SandboxError>

Execute one script body inside the sandbox.

fn take_metadata(&mut self) -> RuntimeMetadata

Take the cumulative metadata since the last take_metadata call (or since reset_for_new_document, whichever was later).

fn set_form_handle( &mut self, _form: *mut FormTree, _root_id: FormNodeId, ) -> Result<(), SandboxError>

Phase C: install the FormTree the runtime should resolve paths against and mutate. The dispatch path owns the mutable borrow and clears the handle before returning.

fn set_data_handle(&mut self, _dom: *const DataDom)

Phase D-γ: install a read-only view of the DataDom for the current document. Called once per document after set_form_handle, before any scripts run. Default: no-op (backends without DataDom support ignore it).

fn reset_per_script( &mut self, _current_id: FormNodeId, _activity: Option<&str>, ) -> Result<(), SandboxError>

Phase C: reset per-script host counters and install the current script context node / activity. Backends without host bindings ignore it.

fn set_static_page_count( &mut self, _page_count: u32, ) -> Result<(), SandboxError>

Phase C page-count foundation. The current flatten order runs scripts before layout, so callers normally leave this at 0.