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Add stringbuf printer

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* libguile/strings.h:
* libguile/strings.c (scm_i_print_stringbuf):
* libguile/print.c (iprin1): Add a printer for stringbufs.  The
  disassembler can print a stringbuf.
This commit is contained in:
Andy Wingo 2013-10-24 10:19:07 +02:00
parent 0f676d8725
commit db07176665
3 changed files with 22 additions and 0 deletions
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3
libguile/print.c
View file

@ -609,6 +609,9 @@ iprin1 (SCM exp, SCM port, scm_print_state *pstate)
break; break;
} }
break; break;
case scm_tc7_stringbuf:
scm_i_print_stringbuf (exp, port, pstate);
break;
case scm_tc7_string: case scm_tc7_string:
if (SCM_WRITINGP (pstate)) if (SCM_WRITINGP (pstate))
{ {

17
libguile/strings.c
View file

@ -261,6 +261,23 @@ scm_i_pthread_mutex_t stringbuf_write_mutex = SCM_I_PTHREAD_MUTEX_INITIALIZER;
#define IS_SH_STRING(str) (SCM_CELL_TYPE(str)==SH_STRING_TAG) #define IS_SH_STRING(str) (SCM_CELL_TYPE(str)==SH_STRING_TAG)
void
scm_i_print_stringbuf (SCM exp, SCM port, scm_print_state *pstate)
{
SCM str;
scm_i_pthread_mutex_lock (&stringbuf_write_mutex);
SET_STRINGBUF_SHARED (exp);
scm_i_pthread_mutex_unlock (&stringbuf_write_mutex);
str = scm_double_cell (RO_STRING_TAG, SCM_UNPACK(exp),
0, STRINGBUF_LENGTH (exp));
scm_puts ("#<stringbuf ", port);
scm_iprin1 (str, port, pstate);
scm_puts (">", port);
}
SCM scm_nullstr; SCM scm_nullstr;
/* Create a scheme string with space for LEN 8-bit Latin-1-encoded /* Create a scheme string with space for LEN 8-bit Latin-1-encoded

2
libguile/strings.h
View file

@ -179,6 +179,8 @@ SCM_API SCM scm_makfromstrs (int argc, char **argv);
#define SCM_I_STRINGBUF_F_SHARED 0x100 #define SCM_I_STRINGBUF_F_SHARED 0x100
#define SCM_I_STRINGBUF_F_WIDE 0x400 #define SCM_I_STRINGBUF_F_WIDE 0x400
SCM_INTERNAL void scm_i_print_stringbuf (SCM exp, SCM port,
scm_print_state *pstate);
/* internal accessor functions. Arguments must be valid. */ /* internal accessor functions. Arguments must be valid. */