Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-19 09:13:04 +00:00
Code Issues Packages Projects Releases Wiki Activity

c++: report the stack at the same places as in C

Browse Source 
Let's have C be the reference, and match it elsewhere.  Maybe C is too
verbose and some adjustments are needed, but then that would be done
in another batch of patches.

* data/skeletons/lalr1.cc: Print the stack once we popped after
YYERROR, and before emptying the stack at the end of parsing.
This commit is contained in:
Akim Demaille
2020-01-14 06:58:21 +01:00
parent f06c0d2c05
commit 187c2ac344
2 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
data/skeletons/lalr1.cc
View File

@@ -1045,6 +1045,7 @@ b4_dollar_popdef])[]dnl
this YYERROR. */ this YYERROR. */
yypop_ (yylen); yypop_ (yylen);
yylen = 0; yylen = 0;
YY_STACK_PRINT ();
goto yyerrlab1; goto yyerrlab1;
@@ -1116,6 +1117,7 @@ b4_dollar_popdef])[]dnl
/* Do not reclaim the symbols of the rule whose action triggered /* Do not reclaim the symbols of the rule whose action triggered
this YYABORT or YYACCEPT. */ this YYABORT or YYACCEPT. */
yypop_ (yylen); yypop_ (yylen);
YY_STACK_PRINT ();
while (1 < yystack_.size ()) while (1 < yystack_.size ())
{ {
yy_destroy_ ("Cleanup: popping", yystack_[0]); yy_destroy_ ("Cleanup: popping", yystack_[0]);

1
tests/c++.at
View File

@@ -679,6 +679,7 @@ Entering state 2
Reading a token: Next token is token EOI () Reading a token: Next token is token EOI ()
Shifting token EOI () Shifting token EOI ()
Entering state 3 Entering state 3
Stack now 0 2 3
Cleanup: popping token EOI () Cleanup: popping token EOI ()
Cleanup: popping nterm expr (40) Cleanup: popping nterm expr (40)
destroy: 40 destroy: 40