Struct wasm::execution::value_stack::CallFrame

pub(crate) struct CallFrame {
    pub func_idx: usize,
    pub locals: Locals,
    pub return_addr: usize,
    pub value_stack_base_idx: usize,
    pub return_value_count: usize,
}

The WASM spec calls this Activations, however it refers to the call frames of functions.

Fields

func_idx: usize

Index to the function of this CallFrame

locals: Locals

Local variables such as parameters for this CallFrame’s function

return_addr: usize

Value that the PC has to be set to when this function returns

value_stack_base_idx: usize

The index to the first value on Stack::values that belongs to this CallFrame

return_value_count: usize

Number of return values to retain on Stack::values when unwinding/popping a CallFrame