Mercurial > hg > octave-nkf
comparison libinterp/parse-tree/oct-parse.in.yy @ 17629:1e8f8900a041
clean up partially constructed parse tree objects on parse errors (bug #40231)
* oct-parse.in.yy (%destructor): New declaration of cleanup actions to
take for items on the parser stack when a parse error occurs.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 11 Oct 2013 09:05:54 -0400 |
| parents | fd712a12fe53 |
| children | bd0a84de3375 |
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| 17628:99ffa521ecec | 17629:1e8f8900a041 |
|---|---|
| 296 %right UNARY EXPR_NOT | 296 %right UNARY EXPR_NOT |
| 297 %left POW EPOW HERMITIAN TRANSPOSE | 297 %left POW EPOW HERMITIAN TRANSPOSE |
| 298 %right PLUS_PLUS MINUS_MINUS | 298 %right PLUS_PLUS MINUS_MINUS |
| 299 %left '(' '.' '{' | 299 %left '(' '.' '{' |
| 300 | 300 |
| 301 // How to clean up if there is a parse error. We handle deleting tokens | |
| 302 // and comments seperately and separators are just characters. The | |
| 303 // remaining items are dynamically allocated parse tree objects that | |
| 304 // must be deleted. | |
| 305 %destructor { } <sep_type> <tok_val> <comment_type> <dummy_type> <> | |
| 306 %destructor { delete $$; } <*> | |
| 307 | |
| 301 // Where to start. | 308 // Where to start. |
| 302 %start input | 309 %start input |
| 303 | 310 |
| 304 %% | 311 %% |
| 305 | 312 |