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* data/lalr1.cc: here.
This commit is contained in:
Akim Demaille
2008-12-31 11:22:32 +01:00
parent 507aa0e2a8
commit 9c6a89660e
2 changed files with 19 additions and 12 deletions
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@@ -1,3 +1,8 @@
2009-02-19 Akim Demaille <demaille@gostai.com>
Comment changes.
* data/lalr1.cc: here.
2009-02-19 Akim Demaille <demaille@gostai.com>
Extract variant.hh

26
data/lalr1.cc
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@@ -1069,16 +1069,18 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
yylhs.state = yystate;
YY_SYMBOL_PRINT ("-> $$ =", yylhs);
]b4_variant_if([[
// Destroy the lhs symbols.
// Destroy the rhs symbols.
for (int i = 0; i < yylen; ++i)
// Destroy a variant which value may have be swapped with
// yylhs.value. The value of yylhs.value (hence maybe one of
// these lhs symbols) depends on what does the default
// contruction for this type. In the case of pointers for
// instance, nothing is done, so the value is junk. Therefore
// do not try to report the content in the debug trace, it's
// junk. Hence yymsg = 0. Besides, that keeps exactly the same
// traces as with the other Bison skeletons.
// Destroy a variant which value may have been swapped with
// yylhs.value (for instance if the action was "std::swap($$,
// $1)"). The value of yylhs.value (hence possibly one of these
// rhs symbols) depends on the default contruction for this
// type. In the case of pointers for instance, no
// initialization is done, so the value is junk. Therefore do
// not try to report the value of symbols about to be destroyed
// in the debug trace, it's possibly junk. Hence yymsg = 0.
// Besides, that keeps exactly the same traces as with the other
// Bison skeletons.
yy_destroy_ (0, yystack_[i]);]])[
yypop_ (yylen);
@@ -1089,9 +1091,9 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
yypush_ (0, yylhs);
goto yynewstate;
/*------------------------------------.
| yyerrlab -- here on detecting error |
`------------------------------------*/
/*--------------------------------------.
| yyerrlab -- here on detecting error. |
`--------------------------------------*/
yyerrlab:
/* If not already recovering from an error, report this error. */
if (!yyerrstatus_)