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| author | David Mitchell <davem@iabyn.com> | 2016-11-10 14:44:10 +0000 |
|---|---|---|
| committer | David Mitchell <davem@iabyn.com> | 2016-11-12 16:15:09 +0000 |
| commit | 4c57ced57467061af9e672665cba30edd3391432 (patch) | |
| tree | 2a3aad023851e220609e6aa3c79522d9124af3c0 /cop.h | |
| parent | 8efda520355126b24fb7c81c753eb2028dcc43bd (diff) | |
| download | perl-4c57ced57467061af9e672665cba30edd3391432.tar.gz | |
remove eval's usage of SvSCREAM
Currently the SvSCREAM flag is set on the sv pointed to by
cx->blk_eval.cur_text, to indicate that it is ref counted.
Instead, use a spare bit in the blk_u16 field of the eval context.
This is to reduce the number of odd special cases for the SvSCREAM flag.
Diffstat (limited to 'cop.h')
| -rw-r--r-- | cop.h | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -640,8 +640,11 @@ struct block_eval { blku_gimme is actually also only 2 bits, so could be merged with something. */ -#define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x7F) -#define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7) +/* blk_u16 bit usage for eval contexts: */ + +#define CxOLD_IN_EVAL(cx) (((cx)->blk_u16) & 0x3F) /* saved PL in_eval */ +#define CxEVAL_TXT_REFCNTED(cx) (((cx)->blk_u16) & 0x40) /* cur_text rc++ */ +#define CxOLD_OP_TYPE(cx) (((cx)->blk_u16) >> 7) /* type of eval op */ /* loop context */ struct block_loop { @@ -961,6 +964,7 @@ L<perlcall>. #define EVAL_KEEPERR 4 /* set by Perl_call_sv if G_KEEPERR */ #define EVAL_INREQUIRE 8 /* The code is being required. */ #define EVAL_RE_REPARSING 0x10 /* eval_sv() called with G_RE_REPARSING */ +/* if adding extra bits, make sure they can fit in CxOLD_OP_TYPE() */ /* Support for switching (stack and block) contexts. * This ensures magic doesn't invalidate local stack and cx pointers. |