diff options
Diffstat (limited to 'source/luametatex/source/tex/texcommands.h')
| -rw-r--r-- | source/luametatex/source/tex/texcommands.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/source/luametatex/source/tex/texcommands.h b/source/luametatex/source/tex/texcommands.h index 55de1dce6..8df61a4db 100644 --- a/source/luametatex/source/tex/texcommands.h +++ b/source/luametatex/source/tex/texcommands.h @@ -797,6 +797,11 @@ typedef enum local_control_codes { bits for this but we don't have enough. Now, because frozen macros can be unfrozen we can indeed have a prefix that bypasses the check. Explicit (re)definitions are then up to the user. + Constant macros are special in the sense that we set the reference count to the maximum. This is + then a signal that we have an expanded macro with a meaning that we can immediately copy into + the expanded token list, as in csname construction. This saves some memory access and token + allocation. + */ typedef enum prefix_codes { @@ -820,6 +825,7 @@ typedef enum prefix_codes { enforced_code, always_code, inherited_code, + constant_code, long_code, outer_code, } prefix_codes; @@ -859,9 +865,11 @@ typedef enum def_codes { def_csname_code, global_expanded_def_csname_code, global_def_csname_code, + constant_def_code, + constant_def_csname_code, } def_codes; -# define last_def_code global_def_csname_code +# define last_def_code constant_def_csname_code typedef enum let_codes { global_let_code, |