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-Wuseless-action #8

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Commits on Jul 7, 2020

  1. diagnostics: add -Wuseless-action 

    * src/complain.h, src/complain.c: Add support for -Wuseless-action.
    @akimd
    akimd committed Jul 7, 2020
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  2. avoid useless actions in examples and tests 

    * tests/glr-regression.at, tests/java.at, tests/torture.at,
* examples/c/lexcalc/parse.y, examples/c/reccalc/parse.y: here.
* src/parse-gram.y: Likewise.
Style changes.
    @akimd
    akimd committed Jul 7, 2020
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  3. regen

    @akimd
    akimd committed Jul 7, 2020
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  4. diagnostics: report useless actions 

    In order for the useless chain productions to work properly, there
should not be actions that make explicit the default behavior.

* src/scan-code.l (strspacecmp, useless_default_action): New.
(translate_action): Report useless actions.
* src/reader.c (grammar_rule_check_and_complete): Don't trigger this
warning when generating explicit actions for C++.
* tests/actions.at (Useless default actions): New.
    @akimd
    akimd committed Jul 7, 2020
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  5. doc: document -Wuseless-action 

    * doc/bison.texi, src/getargs.c, NEWS: here.
    @akimd
    akimd committed Jul 7, 2020
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