tree 5045b6d23111d864e4357c4310cbe59208e770eb
parent 72c766940a09c2969b0bf4a36ad0a4b54791e572
author Adrian Roos <roosa@google.com> 1680609951 +0000
committer Alexander Martinz <alex@amartinz.at> 1722537381 +0200
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metalava: Avoid eagerly loading the world

Avoids eagerly parsing the world:

- In Java (and Kotlin), import statements can only occur
  in the file's import list, so limit the visitor checking import
  statements to that.
- Code blocks and doc comments are expensive to parse, but most don't
  contain anything of interest to metalava. Don't descend into them
  when checking for syntax errors (which for code blocks, javac will
  catch anyways, and for doc comments aren't possible in the first
  place).


Benchmarks:
 - touch $HOST_BIN/metalava && time make droid
   - Before:  4m43s
   - After:   4m08s (14% speedup)

 - module-lib-api-stubs-docs-non-updatable
   - Before:  1m40s
   - After:   1m27s (15% speedup)


Test: make droid
Test: ./gradlew check
Change-Id: Ia7657ca24f384f4ed365ac06e9eed3bf133f1bf2