Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 12:23:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

d: add support for lookahead correction

Browse Source 
When using lookahead correction, the method YYParser.Context.getExpectedTokens
is not annotated with const, because the method calls yylacCheck, which is not
const. Also, because of yylacStack and yylacEstablished, yylacCheck needs to
be called from the context of the parser class, which is sent as parameter to
the Context's constructor.

* data/skeletons/lalr1.d (yylacCheck, yylacEstablish, yylacDiscard,
yylacStack, yylacEstablished): New.
(Context): Use it.
* doc/bison.texi: Document it.
* tests/calc.at: Check it.
This commit is contained in:
Adela Vais
2020-11-17 16:44:52 +02:00
committed by Akim Demaille
parent 0e51f6146a
commit 593724366f
3 changed files with 229 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tests/calc.at
View File

@@ -1461,6 +1461,10 @@ AT_CHECK_CALC_LALR1_D([%define parse.error verbose %debug %define api.token.pref
AT_CHECK_CALC_LALR1_D([%define parse.error verbose %debug %define api.symbol.prefix {SYMB_} %verbose])
AT_CHECK_CALC_LALR1_D([%define parse.error verbose %debug %define api.symbol.prefix {SYMB_} %define api.token.prefix {TOK_} %verbose])
AT_CHECK_CALC_LALR1_D([%locations %define parse.lac full %define parse.error verbose])
AT_CHECK_CALC_LALR1_D([%locations %define parse.lac full %define parse.error custom])
AT_CHECK_CALC_LALR1_D([%locations %define parse.lac full %define parse.error detailed %define parse.trace])
#AT_CHECK_CALC_LALR1_D([%locations %define parse.error verbose %debug %verbose %parse-param {semantic_value *result}{int *count}{int *nerrs}])
#AT_CHECK_CALC_LALR1_D([%locations %define parse.error verbose %debug %define api.prefix {calc} %verbose %parse-param {semantic_value *result}{int *count}{int *nerrs}])