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| author | Arnaud Charlet <charlet@gcc.gnu.org> | 2014-01-23 18:06:29 +0100 |
|---|---|---|
| committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2014-01-23 18:06:29 +0100 |
| commit | ea0f1fc8e4414c655d03febbb63536ab9225e250 (patch) | |
| tree | 940269d4a068a80cd066a98d66f485dd89bd2769 /gcc/ada/sem_util.adb | |
| parent | 19992053df788e3280ae25dc272a43e8384b8db1 (diff) | |
| download | gcc-ea0f1fc8e4414c655d03febbb63536ab9225e250.zip gcc-ea0f1fc8e4414c655d03febbb63536ab9225e250.tar.gz gcc-ea0f1fc8e4414c655d03febbb63536ab9225e250.tar.bz2 | |
[multiple changes]
2014-01-23 Robert Dewar <dewar@adacore.com>
* opt.adb (Register_Opt_Config_Switches): Save SPARK_Mode_Pragma
setting.
2014-01-23 Ed Schonberg <schonberg@adacore.com>
* sem_util.adb (Is_Potentially_Unevaluated): Predicate only
applies to expressions that come from source.
* sem_attr.adb (Analyze_Attribute, case 'Old): Improve error
message.
(Analyze_Attribute, case 'Loop_Entry): Apply SPARK 2014 legality
rule regarding potentially unevaluated expressions, to prefix
of attribute.
From-SVN: r206993
Diffstat (limited to 'gcc/ada/sem_util.adb')
| -rw-r--r-- | gcc/ada/sem_util.adb | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb index be59c9b..9a8428d 100644 --- a/gcc/ada/sem_util.adb +++ b/gcc/ada/sem_util.adb @@ -10334,7 +10334,13 @@ package body Sem_Util is Expr := Par; Par := Parent (Par); - if Nkind (Par) not in N_Subexpr then + -- If the context is not an expression, or if is the result of + -- expansion of an enclosing construct (such as another attribute) + -- the predicate does not apply. + + if Nkind (Par) not in N_Subexpr + or else not Comes_From_Source (Par) + then return False; end if; end loop; |