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merge branch 'maint'

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* upstream/maint:
  maint: post-release administrivia
  version 3.5.3
  news: update for 3.5.3
  yacc.c: make sure we properly propagated the user's number for error
  diagnostics: don't crash because of repeated definitions of error
  style: initialize some struct members
  diagnostics: beware of zero-width characters
  diagnostics: be sure to close the styling when lines are too short
  muscles: fix incorrect decoding of $
  code: be robust to reference with invalid tags
  build: fix typo
  doc: update recommandation for libtextstyle
  style: comment changes
  examples: use consistently the GFDL header for readmes
  style: remove useless declarations
  typo: succesful -> successful
  README: point to tests/bison, and document --trace
  gnulib: update
  maint: post-release administrivia
This commit is contained in:
Akim Demaille
2020-03-08 09:52:13 +01:00
parent ecd922024e 15ea35019f
commit 951da960e6
13 changed files with 188 additions and 39 deletions
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70
tests/input.at
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@@ -298,6 +298,52 @@ input.y:8.14: error: unexpected integer literal
AT_CLEANUP
## ---------------------------- ##
## Redefining the error token. ##
## ---------------------------- ##
AT_SETUP([Redefining the error token])
# We used to crash when trying to display the original definition of
# "error", which is a builtin without any location.
AT_DATA([input.y],
[[%token error 123
%token error 124
%%
exp:
]])
AT_BISON_CHECK([-fcaret input.y], [1], [],
[[input.y:2.8-12: warning: symbol error redeclared [-Wother]
2 | %token error 124
| ^~~~~
input.y:1.8-12: note: previous declaration
1 | %token error 123
| ^~~~~
input.y:2.14-16: error: redefining user token number of error
2 | %token error 124
| ^~~
]])
# While at it, make sure we properly used the user's number for
# "error".
AT_DATA([input.y],
[[%token error 123
%%
exp:
]])
AT_BISON_CHECK([input.y])
AT_CHECK([$EGREP -E '123|256' input.tab.c], [],
[[ 0, 123, 257
#define YYERRCODE 123
]])
AT_CLEANUP
## ------------------ ##
## Dangling aliases. ##
## ------------------ ##
@@ -2069,6 +2115,25 @@ input.y:1.1-34: note: accepted value: 'consistent'
input.y:1.1-34: note: accepted value: 'accepting'
]])
# Check escapes.
AT_DATA([[input.y]],
[[%define lr.default-reduction {[$@]}
%%
start: %empty;
]])
AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
[[input.y:1.1-35: warning: %define variable 'lr.default-reduction' requires keyword values [-Wdeprecated]
1 | %define lr.default-reduction {[$@]}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
input.y:1.1-35: error: invalid value for %define variable 'lr.default-reduction': '[$@]'
1 | %define lr.default-reduction {[$@]}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
input.y:1.1-35: note: accepted value: 'most'
input.y:1.1-35: note: accepted value: 'consistent'
input.y:1.1-35: note: accepted value: 'accepting'
]])
# Back-end.
AT_DATA([[input.y]],
[[%define api.push-pull neither
@@ -2548,7 +2613,9 @@ AT_DATA_GRAMMAR([[input.y]],
%printer { $%; @%; } <*> exp TOK;
%{ $ @ %} // Should not warn.
%%
exp: TOK { $%; @%; $$ = $1; };
exp: TOK { $%; @%; $$ = $1; }
| 'a' { $<->1; $$ = 1; }
| 'b' { $<foo->bar>$; }
%%
$ @ // Should not warn.
]])
@@ -2562,6 +2629,7 @@ input.y:13.19: warning: stray '$' [-Wother]
input.y:13.23: warning: stray '@' [-Wother]
input.y:16.19: warning: stray '$' [-Wother]
input.y:16.23: warning: stray '@' [-Wother]
input.y:17.19: warning: stray '$' [-Wother]
]])
AT_BISON_OPTION_POPDEFS