summaryrefslogtreecommitdiffstats
path: root/generic
diff options
context:
space:
mode:
authordkf <donal.k.fellows@manchester.ac.uk>2012-04-10 09:17:01 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2012-04-10 09:17:01 (GMT)
commitc0862c727dbeca43d2aee244d1582595ac28a74b (patch)
tree8eebc7a27f8abc681d7f0dc4b650f1b1db70385c /generic
parentba795792d6185008b4de5f9c0463f26fa2ddab0a (diff)
downloadtcl-c0862c727dbeca43d2aee244d1582595ac28a74b.zip
tcl-c0862c727dbeca43d2aee244d1582595ac28a74b.tar.gz
tcl-c0862c727dbeca43d2aee244d1582595ac28a74b.tar.bz2
* generic/tcl.h (TCL_DEPRECATED_API): Added macro that can be used to
mark parts of Tcl's API as deprecated. Currently only used for fields of Tcl_Interp, which TIPs 330 and 336 have deprecated with a migration strategy; we want to encourage people to move away from those fields.
Diffstat (limited to 'generic')
-rw-r--r--generic/tcl.h32
1 files changed, 26 insertions, 6 deletions
diff --git a/generic/tcl.h b/generic/tcl.h
index 875a171..729e521 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -163,6 +163,23 @@ extern "C" {
#endif
/*
+ * Allow a part of Tcl's API to be explicitly marked as deprecated.
+ *
+ * Used to make TIP 330/336 generate moans even if people use the
+ * compatibility macros. Change your code, guys! We won't support you forever.
+ */
+
+#if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))
+# if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC__MINOR__ >= 5))
+# define TCL_DEPRECATED_API(msg) __attribute__ ((__deprecated__ (msg)))
+# else
+# define TCL_DEPRECATED_API(msg) __attribute__ ((__deprecated__))
+# endif
+#else
+# define TCL_DEPRECATED_API(msg) /* nothing portable */
+#endif
+
+/*
*----------------------------------------------------------------------------
* Macros used to declare a function to be exported by a DLL. Used by Windows,
* maps to no-op declarations on non-Windows systems. The default build on
@@ -487,9 +504,11 @@ typedef struct Tcl_Interp {
/* TIP #330: Strongly discourage extensions from using the string
* result. */
#ifdef USE_INTERP_RESULT
- char *result; /* If the last command returned a string
+ char *result TCL_DEPRECATED_API("use Tcl_GetResult/Tcl_SetResult");
+ /* If the last command returned a string
* result, this points to it. */
- void (*freeProc) (char *blockPtr);
+ void (*freeProc) (char *blockPtr)
+ TCL_DEPRECATED_API("use Tcl_GetResult/Tcl_SetResult");
/* Zero means the string result is statically
* allocated. TCL_DYNAMIC means it was
* allocated with ckalloc and should be freed
@@ -498,15 +517,16 @@ typedef struct Tcl_Interp {
* Tcl_Eval must free it before executing next
* command. */
#else
- char *unused3;
- void (*unused4) (char *);
+ char *unused3 TCL_DEPRECATED_API("bad field access");
+ void (*unused4) (char *) TCL_DEPRECATED_API("bad field access");
#endif
#ifdef USE_INTERP_ERRORLINE
- int errorLine; /* When TCL_ERROR is returned, this gives the
+ int errorLine TCL_DEPRECATED_API("use Tcl_GetErrorLine/Tcl_SetErrorLine");
+ /* When TCL_ERROR is returned, this gives the
* line number within the command where the
* error occurred (1 if first line). */
#else
- int unused5;
+ int unused5 TCL_DEPRECATED_API("bad field access");
#endif
} Tcl_Interp;