From e3ad2841b1c75837a901618651fed23013643e3f Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Wed, 26 Apr 2017 22:41:30 -0600 Subject: Remove make_cleanup_restore_current_language This patch replaces make_cleanup_restore_current_language with an RAII class that saves the current language, and restores it when the object is destroyed. ChangeLog 2017-08-03 Tom Tromey * utils.h (make_cleanup_restore_current_language): Remove. * utils.c (do_restore_current_language) (make_cleanup_restore_current_language): Remove. * parse.c (parse_exp_in_context_1) (parse_expression_with_language): Use scoped_restore_current_language. * mi/mi-main.c (mi_cmd_execute): Use scoped_restore_current_language. * language.h (scoped_restore_current_language): New class. --- gdb/parse.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) (limited to 'gdb/parse.c') diff --git a/gdb/parse.c b/gdb/parse.c index 3dd7075..abf59d7 100644 --- a/gdb/parse.c +++ b/gdb/parse.c @@ -50,6 +50,7 @@ #include "objfiles.h" #include "user-regs.h" #include +#include "common/gdb_optional.h" /* Standard set of definitions for printing, dumping, prefixifying, * and evaluating expressions. */ @@ -1136,7 +1137,7 @@ parse_exp_in_context_1 (const char **stringptr, CORE_ADDR pc, const struct block *block, int comma, int void_context_p, int *out_subexp) { - struct cleanup *old_chain, *inner_chain; + struct cleanup *old_chain; const struct language_defn *lang = NULL; struct parser_state ps; int subexp; @@ -1214,7 +1215,8 @@ parse_exp_in_context_1 (const char **stringptr, CORE_ADDR pc, to the value matching SELECTED_FRAME as set by get_current_arch. */ initialize_expout (&ps, 10, lang, get_current_arch ()); - inner_chain = make_cleanup_restore_current_language (); + + scoped_restore_current_language lang_saver; set_language (lang->la_language); TRY @@ -1250,7 +1252,6 @@ parse_exp_in_context_1 (const char **stringptr, CORE_ADDR pc, if (expressiondebug) dump_prefix_expression (ps.expout, gdb_stdlog); - do_cleanups (inner_chain); discard_cleanups (old_chain); *stringptr = lexptr; @@ -1275,19 +1276,14 @@ parse_expression (const char *string) expression_up parse_expression_with_language (const char *string, enum language lang) { - struct cleanup *old_chain = NULL; - + gdb::optional lang_saver; if (current_language->la_language != lang) { - old_chain = make_cleanup_restore_current_language (); + lang_saver.emplace (); set_language (lang); } - expression_up expr = parse_expression (string); - - if (old_chain != NULL) - do_cleanups (old_chain); - return expr; + return parse_expression (string); } /* Parse STRING as an expression. If parsing ends in the middle of a -- cgit v1.1