• Greg Spencer's avatar
    Remove remaining "## Sample code" segments, and fix the snippet generator. (#27793) · 262f12b4
    Greg Spencer authored
    This converts all remaining "## Sample code" segments into snippets, and fixes
    the snippet generator to handle multiple snippets in the same dartdoc block
    properly.
    
    I also generated, compiled, and ran each of the existing application samples,
    and fixed them up to be more useful and/or just run without errors.
    
    This PR fixes these problems with examples:
    
    1. Switching tabs in a snippet now works if there is more than one snippet in
       a single dartdoc block.
    2. Generation of snippet code now works if there is more than one snippet.
    3. Contrast of text and links in the code sample block has been improved to
       recommended levels.
    4. Added five new snippet templates, including a "freeform" template to make
       it possible to show examples that need to change the app instantiation.
    5. Fixed several examples to run properly, a couple by adding the "Scaffold"
       widget to the template, a couple by just fixing their code.
    6. Fixed visual look of some of the samples when they run by placing many
       samples inside of a Scaffold.
    7. In order to make it easier to run locally, changed the sample analyzer to
       remove the contents of the supplied temp directory before running, since
       having files that hang around is problematic (only a problem when running
       locally with the `--temp` argument).
    8. Added a `SampleCheckerException` class, and handle sample checking
       exceptions more gracefully.
    9. Deprecated the old "## Sample code" designation, and added enforcement for
       the deprecation.
    10. Removed unnecessary `new` from templates (although they never appeared in
       the samples thanks to dartfmt, but still).
    
    Fixes #26398
    Fixes #27411
    262f12b4
main.dart 5.94 KB