Struct ModuleContext 

pub struct ModuleContext<'a> {
    pub schemas: &'a TypeSchemaRegistry,
    pub invoke_callable: Option<&'a dyn Fn(&KindedSlot, &[KindedSlot]) -> Result<KindedSlot, String>>,
    pub raw_invoker: Option<RawCallableInvoker>,
    pub function_hashes: Option<&'a [Option<[u8; 32]>]>,
    pub vm_state: Option<&'a dyn VmStateAccessor>,
    pub granted_permissions: Option<PermissionSet>,
    pub scope_constraints: Option<ScopeConstraints>,
    pub set_pending_resume: Option<&'a dyn Fn(KindedSlot)>,
    pub set_pending_frame_resume: Option<&'a dyn Fn(usize, Vec<KindedSlot>)>,
}

Execution context available to module functions during a VM call.

The VM constructs this before each module function dispatch and passes it by reference.

Fields

schemas: &'a TypeSchemaRegistry

Type schema registry — lookup types by name or ID.

invoke_callable: Option<&'a dyn Fn(&KindedSlot, &[KindedSlot]) -> Result<KindedSlot, String>>

Invoke a Shape callable (function/closure) from host code.

raw_invoker: Option<RawCallableInvoker>

Raw invoker for extensions that need to capture a callable invoker beyond the borrow lifetime (e.g., CFFI callback userdata). Valid only for the duration of the current module function call.

function_hashes: Option<&'a [Option<[u8; 32]>]>

Content-addressed function hashes indexed by function ID. Provided by the VM when content-addressed metadata is available. Uses raw [u8; 32] to avoid a dependency on shape-vm’s FunctionHash.

vm_state: Option<&'a dyn VmStateAccessor>

Read-only access to VM state (call frames, locals, etc.). Provided by the VM when state introspection is needed.

granted_permissions: Option<PermissionSet>

Permissions granted to the current execution context. When Some, module functions check this before performing I/O. When None, all operations are allowed (backwards compatible).

scope_constraints: Option<ScopeConstraints>

Scope constraints for the current execution context. Narrows permissions to specific paths, hosts, etc.

set_pending_resume: Option<&'a dyn Fn(KindedSlot)>

Callback for state.resume() to request full VM state restoration. The module function stores the snapshot; the dispatch loop applies it after the current instruction completes.

set_pending_frame_resume: Option<&'a dyn Fn(usize, Vec<KindedSlot>)>

Callback for state.resume_frame() to request mid-function resume. Stores (ip_offset, locals) so the dispatch loop can override the call frame set up by invoke_callable.