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traces: show the stack after reading a token

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Currently, if we have long rules and series of shift, we stack states
without showing stack.  Let's be more incremental, and do how the Java
skeleton does.

* data/skeletons/lalr1.cc, data/skeletons/lalr1.d,
* data/skeletons/yacc.c:
Here.
Adjust test cases.
* tests/torture.at (AT_DATA_STACK_TORTURE): Disable stack traces: this
test produces a very large stack, and showing the stack each time we
shift a token goes quadatric.
This commit is contained in:
Akim Demaille
2020-02-04 07:44:00 +01:00
parent bba2f0a3a0
commit 37aeda6fb3
9 changed files with 45 additions and 4 deletions
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4
data/skeletons/lalr1.d
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@@ -476,7 +476,9 @@ m4_popdef([b4_at_dollar])])dnl
/* New state. Unlike in the C/C++ skeletons, the state is already
pushed when we come here. */
case YYNEWSTATE:]b4_parse_trace_if([[
yycdebugln (format("Entering state %d", yystate));]])[
yycdebugln (format("Entering state %d", yystate));
if (0 < yydebug)
yystack.print (yyDebugStream);]])[
/* Accept? */
if (yystate == yyfinal_)