Struct cranelift_interpreter::interpreter::InterpreterState

pub struct InterpreterState<'a> {
    pub functions: FunctionStore<'a>,
    pub libcall_handler: LibCallHandler,
    pub frame_stack: Vec<Frame<'a>>,
    pub frame_offset: usize,
    pub stack: Vec<u8>,
    pub pinned_reg: DataValue,
    pub native_endianness: Endianness,
}

Maintains the Interpreter’s state, implementing the State trait.

Fields

functions: FunctionStore<'a>

libcall_handler: LibCallHandler

frame_stack: Vec<Frame<'a>>

frame_offset: usize

Number of bytes from the bottom of the stack where the current frame’s stack space is

stack: Vec<u8>

pinned_reg: DataValue

native_endianness: Endianness

Implementations

impl<'a> InterpreterState<'a>

pub fn with_function_store(self, functions: FunctionStore<'a>) -> Self

pub fn with_libcall_handler(self, handler: LibCallHandler) -> Self

Registers a libcall handler

Trait Implementations

impl Default for InterpreterState<'_>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> State<'a> for InterpreterState<'a>

fn resolve_global_value( &self, gv: GlobalValue ) -> Result<DataValue, MemoryError>

Non-Recursively resolves a global value until its address is found

fn get_function(&self, func_ref: FuncRef) -> Option<&'a Function>

Retrieve a reference to a Function.

fn get_current_function(&self) -> &'a Function

Retrieve a reference to the currently executing Function.

fn get_libcall_handler(&self) -> LibCallHandler

Retrieve the handler callback for a LibCall

fn push_frame(&mut self, function: &'a Function)

Record that an interpreter has called into a new Function.

fn pop_frame(&mut self)

Record that an interpreter has returned from a called Function.

fn current_frame_mut(&mut self) -> &mut Frame<'a>

fn current_frame(&self) -> &Frame<'a>

fn stack_address( &self, size: AddressSize, slot: StackSlot, offset: u64 ) -> Result<Address, MemoryError>

Computes the stack address for this stack slot, including an offset.

fn checked_load( &self, addr: Address, ty: Type, mem_flags: MemFlags ) -> Result<DataValue, MemoryError>

Retrieve a value V from memory at the given address, checking if it belongs either to the stack or to one of the heaps; the number of bytes loaded corresponds to the specified Type.

fn checked_store( &mut self, addr: Address, v: DataValue, mem_flags: MemFlags ) -> Result<(), MemoryError>

Store a value V into memory at the given address, checking if it belongs either to the stack or to one of the heaps; the number of bytes stored corresponds to the specified Type.

fn function_address( &self, size: AddressSize, name: &ExternalName ) -> Result<Address, MemoryError>

Compute the address of a function given its name.

fn get_function_from_address( &self, address: Address ) -> Option<InterpreterFunctionRef<'a>>

Retrieve a reference to a Function given its address.

fn get_pinned_reg(&self) -> DataValue

Retrieves the current pinned reg value

fn set_pinned_reg(&mut self, v: DataValue)

Sets a value for the pinned reg

fn collect_values(&self, names: &[Value]) -> SmallVec<[DataValue; 1]>

Collect a list of values V by their value references.