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authorTom Tromey <tom@tromey.com>2018-02-06 01:02:00 +0100
committerTom Tromey <tom@tromey.com>2018-02-08 11:46:55 -0700
commitf6c2623eb8ac7296b6d7a76657394272a71f5aee (patch)
tree7a83749c7e88dc681929f784c2896dc369aa2d1a /gdb/c-exp.y
parent8ce47547b34fddec16d1ccd801f025a56976af95 (diff)
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Return unique_xmalloc_ptr from macro scope functions
This changes the macro scope functions (sal_macro_scope, user_macro_scope, and default_macro_scope) to return a unique_xmalloc_ptr, then fixes up the users. This allowed for the removal of several cleanups. 2018-02-08 Tom Tromey <tom@tromey.com> * symtab.c (default_collect_symbol_completion_matches_break_on): Use unique_xmalloc_ptr. * macroscope.h: (sal_macro_scope, user_macro_scope) (default_macro_scope): Return unique_xmalloc_ptr. * macroscope.c (sal_macro_scope, user_macro_scope) (default_macro_scope): Return unique_xmalloc_ptr. * macroexp.h (macro_expand, macro_expand_once): Return unique_xmalloc_ptr. * macroexp.c (macro_expand, macro_expand_once): Return unique_xmalloc_ptr. * macrocmd.c (macro_expand_command, macro_expand_once_command) (info_macro_command, info_macros_command): Use unique_xmalloc_ptr. * compile/compile-c-support.c (write_macro_definitions): Use unique_xmalloc_ptr. * c-exp.y (c_parse): Use unique_xmalloc_ptr.
Diffstat (limited to 'gdb/c-exp.y')
-rw-r--r--gdb/c-exp.y24
1 files changed, 11 insertions, 13 deletions
diff --git a/gdb/c-exp.y b/gdb/c-exp.y
index 8f0aa00..8dc3c06 100644
--- a/gdb/c-exp.y
+++ b/gdb/c-exp.y
@@ -3220,26 +3220,24 @@ c_parse (struct parser_state *par_state)
gdb_assert (par_state != NULL);
pstate = par_state;
- /* Note that parsing (within yyparse) freely installs cleanups
- assuming they'll be run here (below). */
-
- back_to = make_cleanup (free_current_contents, &expression_macro_scope);
-
- /* Set up the scope for macro expansion. */
- expression_macro_scope = NULL;
+ gdb::unique_xmalloc_ptr<struct macro_scope> macro_scope;
if (expression_context_block)
- expression_macro_scope
- = sal_macro_scope (find_pc_line (expression_context_pc, 0));
+ macro_scope = sal_macro_scope (find_pc_line (expression_context_pc, 0));
else
- expression_macro_scope = default_macro_scope ();
- if (! expression_macro_scope)
- expression_macro_scope = user_macro_scope ();
+ macro_scope = default_macro_scope ();
+ if (! macro_scope)
+ macro_scope = user_macro_scope ();
+
+ scoped_restore restore_macro_scope
+ = make_scoped_restore (&expression_macro_scope, macro_scope.get ());
/* Initialize macro expansion code. */
obstack_init (&expansion_obstack);
gdb_assert (! macro_original_text);
- make_cleanup (scan_macro_cleanup, 0);
+ /* Note that parsing (within yyparse) freely installs cleanups
+ assuming they'll be run here (below). */
+ back_to = make_cleanup (scan_macro_cleanup, 0);
scoped_restore restore_yydebug = make_scoped_restore (&yydebug,
parser_debug);