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Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.

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* tests/glr-regression.at (Leaked semantic values when reporting
ambiguity): New test case.
* data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
yyabort rather than invoking yyFail, which invokes longjmp.  Remove the
now unnecessary yystackp parameter.
(yyresolveValue): Return yyreportAmbiguity's result.  Now the necessary
destructors can be called.

* tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
in existing testcases.
This commit is contained in:
Joel E. Denny
2006-03-02 06:18:09 +00:00
parent 520181ab91
commit 35ee866a32
3 changed files with 120 additions and 15 deletions
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@@ -1,10 +1,24 @@
2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
* tests/glr-regression.at (Leaked semantic values when reporting
ambiguity): New test case.
* data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
yyabort rather than invoking yyFail, which invokes longjmp. Remove the
now unnecessary yystackp parameter.
(yyresolveValue): Return yyreportAmbiguity's result. Now the necessary
destructors can be called.
* tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
in existing testcases.
2006-03-02 Joel E. Denny <jdenny@ces.clemson.edu>
Don't leak semantic values for parent RHS when a user action cuts the
parser, and clean up related code a bit.
* tests/glr-regression.at (Leaked merged semantic value if user action
cuts parse) Rename to...
(Leaked semantic values if user action cuts parse) ... this. Add check
cuts parse): Rename to...
(Leaked semantic values if user action cuts parse): ... this. Add check
for leaked parent RHS values.
* data/glr.c (yydestroyGLRState): In debugging output, distinguish
between an unresolved state (non-empty chain of semantic options) and