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authorAndy Wingo <wingo@pobox.com>2016-05-13 18:23:47 +0200
committerAndy Wingo <wingo@pobox.com>2016-05-13 18:31:29 +0200
commitcd51ce81d047a10c55c450ea7b2bf5ab8b8340be (patch)
tree408738ccb0b6cc19d465a58420e8fc9e548a285d /libguile/fports.h
parent17f90360b6057034135ec93ffae340fa514208af (diff)
downloadguile-cd51ce81d047a10c55c450ea7b2bf5ab8b8340be.tar.gz
Use heap-allocated port types instead of ptobnums
This removes a limitation on the number of port types, simplifies the API, and removes a central point of coordination. * libguile/ports-internal.h (struct scm_t_port_type): Rename from scm_t_ptob_descriptor, now that it's private. Add GOOPS class fields. (struct scm_t_port): Rename from struct scm_port, especially considering that deprecated.h redefines scm_port using the preprocessor :(. * libguile/ports.h: Add definitions of SCM_PORT and SCM_PORT_TYPE, though the scm_t_port and scm_t_port_type types are incomplete. (SCM_TC2PTOBNUM, SCM_PTOBNUM, SCM_PTOBNAME): Remove, as there are no more typecodes for port types. (scm_c_num_port_types, scm_c_port_type_ref, scm_c_port_type_add_x): Remove. (scm_make_port_type): Return a scm_t_port_type*. All methods adapted to take a scm_t_port_type* instead of a ptobnum. (scm_c_make_port_with_encoding, scm_c_make_port): Take a port type pointer instead of a tag. (scm_new_port_table_entry): Remove; not useful. * libguile/ports.c: Remove things related to the port kind table. Adapt uses of SCM_PORT_DESCRIPTOR / scm_t_ptob_descriptor to use SCM_PORT_TYPE and scm_t_port_type. * libguile/deprecated.c: * libguile/deprecated.h: * libguile/filesys.c: * libguile/fports.c: * libguile/fports.h: * libguile/print.c: * libguile/r6rs-ports.c: * libguile/strports.c: * libguile/strports.h: * libguile/tags.h: * libguile/vports.c: * test-suite/standalone/test-scm-c-read.c: Adapt to change. * libguile/goops.c (scm_class_of, make_port_classes) (scm_make_port_classes, create_port_classes): Adapt to store the classes in the ptob.
Diffstat (limited to 'libguile/fports.h')
-rw-r--r--libguile/fports.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/libguile/fports.h b/libguile/fports.h
index 4ea698a5a..6b15bd971 100644
--- a/libguile/fports.h
+++ b/libguile/fports.h
@@ -37,12 +37,13 @@ typedef struct scm_t_fport {
*/
} scm_t_fport;
-SCM_API scm_t_bits scm_tc16_fport;
+SCM_API scm_t_port_type *scm_file_port_type;
#define SCM_FSTREAM(x) ((scm_t_fport *) SCM_STREAM (x))
#define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
-#define SCM_FPORTP(x) (SCM_HAS_TYP16 (x, scm_tc16_fport))
+#define SCM_FPORTP(x) \
+ (SCM_PORTP (x) && SCM_PORT_TYPE (x) == scm_file_port_type)
#define SCM_OPFPORTP(x) (SCM_FPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_OPN))
#define SCM_OPINFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_RDNG))
#define SCM_OPOUTFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_WRTNG))