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all 'static' variables should be 'const'

This commit is contained in:
Roberto Ierusalimschy 2016-06-20 16:12:46 -03:00
parent 644799537f
commit 6487fb11fc
1 changed files with 6 additions and 5 deletions
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11
lcode.c
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@ -1,5 +1,5 @@
/* /*
** $Id: lcode.c,v 2.108 2016/01/05 16:22:37 roberto Exp roberto $ ** $Id: lcode.c,v 2.109 2016/05/13 19:09:21 roberto Exp roberto $
** Code generator for Lua ** Code generator for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -40,7 +40,7 @@
** If expression is a numeric constant, fills 'v' with its value ** If expression is a numeric constant, fills 'v' with its value
** and returns 1. Otherwise, returns 0. ** and returns 1. Otherwise, returns 0.
*/ */
static int tonumeral(expdesc *e, TValue *v) { static int tonumeral(const expdesc *e, TValue *v) {
if (hasjumps(e)) if (hasjumps(e))
return 0; /* not a numeral */ return 0; /* not a numeral */
switch (e->k) { switch (e->k) {
@ -975,7 +975,8 @@ static int validop (int op, TValue *v1, TValue *v2) {
** Try to "constant-fold" an operation; return 1 iff successful. ** Try to "constant-fold" an operation; return 1 iff successful.
** (In this case, 'e1' has the final result.) ** (In this case, 'e1' has the final result.)
*/ */
static int constfolding (FuncState *fs, int op, expdesc *e1, expdesc *e2) { static int constfolding (FuncState *fs, int op, expdesc *e1,
const expdesc *e2) {
TValue v1, v2, res; TValue v1, v2, res;
if (!tonumeral(e1, &v1) || !tonumeral(e2, &v2) || !validop(op, &v1, &v2)) if (!tonumeral(e1, &v1) || !tonumeral(e2, &v2) || !validop(op, &v1, &v2))
return 0; /* non-numeric operands or not safe to fold */ return 0; /* non-numeric operands or not safe to fold */
@ -1060,9 +1061,9 @@ static void codecomp (FuncState *fs, BinOpr opr, expdesc *e1, expdesc *e2) {
** Aplly prefix operation 'op' to expression 'e'. ** Aplly prefix operation 'op' to expression 'e'.
*/ */
void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e, int line) { void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e, int line) {
static expdesc ef = {VKINT, {0}, NO_JUMP, NO_JUMP}; /* fake 2nd operand */ static const expdesc ef = {VKINT, {0}, NO_JUMP, NO_JUMP};
switch (op) { switch (op) {
case OPR_MINUS: case OPR_BNOT: case OPR_MINUS: case OPR_BNOT: /* use 'ef' as fake 2nd operand */
if (constfolding(fs, op + LUA_OPUNM, e, &ef)) if (constfolding(fs, op + LUA_OPUNM, e, &ef))
break; break;
/* FALLTHROUGH */ /* FALLTHROUGH */