lua_code/
opcode_names.rs

1//! Opcode name table for debug/disassembly output.
2//!
3//! Direct port of `src/lopnames.h` from Lua 5.4.7. Order must match the
4//! `OpCode` enum (`src/lopcodes.h`); `ORDER OP` invariant.
5//!
6//! The C source is preserved inline as `// C:` comments for diff-time
7//! review.
8
9// C: /* ORDER OP */
10// C: static const char *const opnames[] = {
11// C:   "MOVE", "LOADI", "LOADF", "LOADK", "LOADKX", "LOADFALSE", "LFALSESKIP",
12// C:   "LOADTRUE", "LOADNIL", "GETUPVAL", "SETUPVAL", "GETTABUP", "GETTABLE",
13// C:   "GETI", "GETFIELD", "SETTABUP", "SETTABLE", "SETI", "SETFIELD",
14// C:   "NEWTABLE", "SELF", "ADDI", "ADDK", "SUBK", "MULK", "MODK", "POWK",
15// C:   "DIVK", "IDIVK", "BANDK", "BORK", "BXORK", "SHRI", "SHLI", "ADD",
16// C:   "SUB", "MUL", "MOD", "POW", "DIV", "IDIV", "BAND", "BOR", "BXOR",
17// C:   "SHL", "SHR", "MMBIN", "MMBINI", "MMBINK", "UNM", "BNOT", "NOT",
18// C:   "LEN", "CONCAT", "CLOSE", "TBC", "JMP", "EQ", "LT", "LE", "EQK",
19// C:   "EQI", "LTI", "LEI", "GTI", "GEI", "TEST", "TESTSET", "CALL",
20// C:   "TAILCALL", "RETURN", "RETURN0", "RETURN1", "FORLOOP", "FORPREP",
21// C:   "TFORPREP", "TFORCALL", "TFORLOOP", "SETLIST", "CLOSURE", "VARARG",
22// C:   "VARARGPREP", "EXTRAARG", NULL
23// C: };
24//
25// PORT NOTE: dropped the trailing NULL sentinel. Length is `OP_COUNT` known
26// at compile time; Rust slice + bounds-check serves the role of the
27// sentinel.
28
29/// Total number of opcodes. Must equal `OpCode::Count as usize` once the
30/// enum lands; trailer-required hook checks this constant exists.
31pub const OP_COUNT: usize = 83;
32
33/// Opcode names, indexed by `OpCode as usize`. ORDER OP — must match the
34/// `OpCode` enum order in `lopcodes.h` exactly.
35pub const OPNAMES: [&str; OP_COUNT] = [
36    "MOVE", "LOADI", "LOADF", "LOADK", "LOADKX", "LOADFALSE", "LFALSESKIP",
37    "LOADTRUE", "LOADNIL", "GETUPVAL", "SETUPVAL", "GETTABUP", "GETTABLE",
38    "GETI", "GETFIELD", "SETTABUP", "SETTABLE", "SETI", "SETFIELD",
39    "NEWTABLE", "SELF", "ADDI", "ADDK", "SUBK", "MULK", "MODK", "POWK",
40    "DIVK", "IDIVK", "BANDK", "BORK", "BXORK", "SHRI", "SHLI", "ADD",
41    "SUB", "MUL", "MOD", "POW", "DIV", "IDIV", "BAND", "BOR", "BXOR",
42    "SHL", "SHR", "MMBIN", "MMBINI", "MMBINK", "UNM", "BNOT", "NOT",
43    "LEN", "CONCAT", "CLOSE", "TBC", "JMP", "EQ", "LT", "LE", "EQK",
44    "EQI", "LTI", "LEI", "GTI", "GEI", "TEST", "TESTSET", "CALL",
45    "TAILCALL", "RETURN", "RETURN0", "RETURN1", "FORLOOP", "FORPREP",
46    "TFORPREP", "TFORCALL", "TFORLOOP", "SETLIST", "CLOSURE", "VARARG",
47    "VARARGPREP", "EXTRAARG",
48];
49
50#[cfg(test)]
51mod tests {
52    use super::*;
53
54    #[test]
55    fn op_count_matches_table() {
56        assert_eq!(OPNAMES.len(), OP_COUNT);
57    }
58
59    #[test]
60    fn first_and_last_opcodes() {
61        assert_eq!(OPNAMES[0], "MOVE");
62        assert_eq!(OPNAMES[OP_COUNT - 1], "EXTRAARG");
63    }
64}
65
66// ──────────────────────────────────────────────────────────────────────────
67// PORT STATUS
68//   source:        src/lopnames.h (103 lines, 1 static array)
69//   target_crate:  lua-code
70//   confidence:    high
71//   todos:         0
72//   port_notes:    1   (dropped NULL sentinel — Rust length is exact)
73//   unsafe_blocks: 0
74//   notes:         opcode name table only; OpCode enum lands separately
75// ──────────────────────────────────────────────────────────────────────────
lua_code/opcode_names.rs

lua_code/
opcode_names.rs
