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new scheme for debug info about tail calls: no more 'fake' stack entries,

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but stack entry knows whether it was tail called
This commit is contained in:
Roberto Ierusalimschy
2009-11-25 13:27:51 -02:00
parent 2b25489b47
commit b0f2b288a6
9 changed files with 60 additions and 79 deletions
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4
lstate.h
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@@ -1,5 +1,5 @@
/*
** $Id: lstate.h,v 2.47 2009/10/23 19:12:19 roberto Exp roberto $
** $Id: lstate.h,v 2.48 2009/11/18 13:13:47 roberto Exp roberto $
** Global State
** See Copyright Notice in lua.h
*/
@@ -80,7 +80,6 @@ typedef struct CallInfo {
struct { /* only for Lua functions */
StkId base; /* base for this function */
const Instruction *savedpc;
int tailcalls; /* number of tail calls lost under this entry */
} l;
struct { /* only for C functions */
int ctx; /* context info. in case of yields */
@@ -104,6 +103,7 @@ typedef struct CallInfo {
#define CIST_YIELDED (1<<3) /* call reentered after suspension */
#define CIST_YPCALL (1<<4) /* call is a yieldable protected call */
#define CIST_STAT (1<<5) /* call has an error status (pcall) */
#define CIST_TAIL (1<<6) /* call was tail called */
#define curr_func(L) (clvalue(L->ci->func))