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* src/conflicts.c (conflicts_output): Don't output rules never

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reduced here, since anyway that computation doesn't work.
* src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
(rule_useless_p, rule_never_reduced_p): New.
(grammar_rules_partial_print): Use a filter instead of a range.
Display the title only if needed.
(grammar_rules_print): Adjust.
(grammar_rules_never_reduced_report): New.
* src/tables.c (action_row): Move the computation of rules never
reduced to...
(token_actions): here.
* src/main.c (main): Make the parser before making the report, so
that rules never reduced are computed.
Call grammar_rules_never_reduced_report.
* src/print.c (print_results): Report rules never reduced.
* tests/conflicts.at, tests/reduce.at: Adjust.
This commit is contained in:
Akim Demaille
2002-08-02 08:05:01 +00:00
parent cd08e51eda
commit c8f002c7d3
10 changed files with 175 additions and 102 deletions
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14
tests/reduce.at
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@@ -47,7 +47,7 @@ exp: useful;
AT_CHECK([[bison input.y]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
[[Terminals which are not used:
[[Terminals which are not used
useless1
useless2
useless3
@@ -102,7 +102,7 @@ input.y:12.8-15: warning: useless nonterminal: useless9
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
[[Useless nonterminals:
[[Useless nonterminals
useless1
useless2
useless3
@@ -166,7 +166,7 @@ input.y:14.9-13: warning: useless rule: useless9: '9'
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
[[Useless nonterminals:
[[Useless nonterminals
useless1
useless2
useless3
@@ -176,7 +176,7 @@ AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
useless7
useless8
useless9
Terminals which are not used:
Terminals which are not used
'1'
'2'
'3'
@@ -248,10 +248,10 @@ not-reduced.y:17.15-18.63: warning: useless rule: non_productive: non_productive
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' not-reduced.output]], 0,
[[Useless nonterminals:
[[Useless nonterminals
not_reachable
non_productive
Terminals which are not used:
Terminals which are not used
useless_token
Useless rules
2 exp: non_productive
@@ -322,7 +322,7 @@ input.y:7.12-24: warning: useless rule: indirection: underivable
]])
AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
[[Useless nonterminals:
[[Useless nonterminals
underivable
indirection
Useless rules