Struct FuncState 

pub struct FuncState {

    pub f: Box<LuaProto>,
    pub prev: Option<Box<FuncState>>,
    pub bl: Option<Box<BlockCnt>>,
    pub pc: i32,
    pub lasttarget: i32,
    pub previousline: i32,
    pub nk: i32,
    pub np: i32,
    pub nabslineinfo: i32,
    pub firstlocal: i32,
    pub firstlabel: i32,
    pub ndebugvars: i16,
    pub nactvar: u8,
    pub nups: u8,
    pub freereg: u8,
    pub iwthabs: u8,
    pub needclose: bool,
    pub last_token_line: i32,
}

C: FuncState — per-function compile-time state. In C: stack-allocated in body(), chained via raw *prev pointer. In Rust: heap-allocated via Option<Box<FuncState>> in LexState.

Fields

f: Box<LuaProto>

C: f — the Proto being built. PORT NOTE: types.tsv maps this to GcRef; we use Box during compilation to avoid RefCell overhead. close_func hands it to the GC/parent at close time.

prev: Option<Box<FuncState>>

C: prev — enclosing FuncState (raw pointer in C; owned Box here).

bl: Option<Box<BlockCnt>>

C: bl — innermost active block

pc: i32

C: pc — next bytecode position to emit

lasttarget: i32

C: lasttarget — pc of last ‘jump label’

previousline: i32

C: previousline — last line saved in lineinfo

nk: i32

C: nk — number of constants emitted

np: i32

C: np — number of nested prototypes emitted

nabslineinfo: i32

C: nabslineinfo — number of absolute line-info records

firstlocal: i32

C: firstlocal — index of first local var in dyd.actvar

firstlabel: i32

C: firstlabel — index of first label in dyd.label

ndebugvars: i16

C: ndebugvars — entries in f.locvars

nactvar: u8

C: nactvar — number of active locals

nups: u8

C: nups — number of upvalues

freereg: u8

C: freereg — next free register

iwthabs: u8

C: iwthabs — instructions since last absolute line info

needclose: bool

C: needclose — function must close upvalues on return

last_token_line: i32

Current ls.lastline value, mirrored on every sync_from_lex. Used by emit_inst to attribute the line to the just-consumed token (matching lua-c’s savelineinfo(fs, f, fs->ls->lastline)), instead of whatever line the caller threaded down. The threaded line param is preserved only for explicit overrides (luaK_fixline-style).

Trait Implementations

impl Debug for FuncState

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

Formats the value using the given formatter.