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grammar: record used associativity and print useless ones

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Record which symbol associativity is used, and display useless ones.

* src/symtab.h, src/symtab.c (register_assoc, print_assoc_warnings): New
* src/symtab.c (init_assoc, is_assoc_used): New
* src/main.c: Use print_assoc_warnings
* src/conflicts.c: Use register_assoc
* tests/conflicts.at (Useless associativity warning): New.

Due to the new warning, many tests had to be updated.

* tests/conflicts.at tests/existing.at tests/regression.at:
Add the associativity warning in the expected results.
* tests/java.at: Fix the java calculator's grammar to remove a useless
associativity.
* doc/bison.texi (mfcalc example): Fix associativity to remove
warning.
This commit is contained in:
Valentin Tolmer
2013-01-29 16:27:04 +01:00
committed by Akim Demaille
parent 284bc49c83
commit e8f7155d98
9 changed files with 275 additions and 9 deletions
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8
src/symtab.h
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@@ -270,6 +270,14 @@ void register_precedence (graphid first, graphid snd);
void print_precedence_warnings (void);
/*----------------------.
| Symbol associativity |
`----------------------*/
void register_assoc (int i, int j);
void print_assoc_warnings (void);
/*-----------------.
| Semantic types. |
`-----------------*/