Struct CallInfo 

pub struct CallInfo {
    pub func: StackIdx,
    pub top: StackIdx,
    pub previous: Option<CallInfoIdx>,
    pub next: Option<CallInfoIdx>,
    pub u: CallInfoFrame,
    pub u2: CallInfoExtra,
    pub nresults: i16,
    pub callstatus: u16,
}

Saved state for a Lua or C call frame.

C: struct CallInfo in lstate.h. types.tsv: CallInfo → CallInfo (several fields renamed / adapted).

The C intrusive doubly-linked list (previous, next as raw pointers) is replaced by Option<CallInfoIdx> indices into LuaState::call_info.

Fields

func: StackIdx

top: StackIdx

previous: Option<CallInfoIdx>

next: Option<CallInfoIdx>

u: CallInfoFrame

u2: CallInfoExtra

nresults: i16

callstatus: u16

Implementations

impl CallInfo

pub fn is_lua(&self) -> bool

pub fn is_lua_code(&self) -> bool

pub fn is_vararg_func(&self) -> bool

Whether the active function is a vararg function.

Currently returns false unconditionally — vararg introspection via debug.getinfo reports no vararg info instead of panicking.

TODO(port): wire when CallInfo carries proto access for vararg detection.

pub fn saved_pc(&self) -> u32

pub fn set_saved_pc(&mut self, pc: u32)

pub fn nextra_args(&self) -> i32

pub fn transfer_ftransfer(&self) -> u16

pub fn transfer_ntransfer(&self) -> u16

pub fn set_trap(&mut self, t: bool)

pub fn recover_status(&self) -> i32

Read the 3-bit recover-status field packed into bits 10-12 of callstatus.

C: #define getcistrecst(ci) (((ci)->callstatus >> CIST_RECST) & 7)

pub fn set_recover_status<T: Into<i32>>(&mut self, status: T)

Write the 3-bit recover-status field. status must fit in three bits.

C: #define setcistrecst(ci,st) (lstate.h)

pub fn get_oah(&self) -> bool

pub fn set_oah(&mut self, allow: bool)

Store the current allowhook value into callstatus bit 0 (CIST_OAH).

C: #define setoah(st,v) ((st) = ((st) & ~CIST_OAH) | (v))

pub fn u_c_old_errfunc(&self) -> isize

pub fn u_c_ctx(&self) -> isize

pub fn u_c_k(&self) -> Option<LuaKFunction>

pub fn set_u_c_k(&mut self, k: Option<LuaKFunction>)

Set continuation function on a C-call frame.

Panics if invoked on a Lua frame (callers must check is_lua() first).

pub fn set_u_c_ctx(&mut self, ctx: isize)

Set continuation context on a C-call frame.

pub fn set_u_c_old_errfunc(&mut self, old_errfunc: isize)

Set saved old_errfunc on a C-call frame.

pub fn set_u2_funcidx(&mut self, idx: i32)

Set the u2.funcidx field, used by yieldable pcall for error recovery.

C: ci->u2.funcidx = cast_int(savestack(L, c.func))

Trait Implementations

impl Clone for CallInfo

fn clone(&self) -> CallInfo

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for CallInfo

fn default() -> Self

Returns the “default value” for a type.