cargo: Move all conversions in _raw_to_dataclass()

This allows keeping the manifest unmodified which is better practice for
a parser. Previously some places had e.g. raw.setdefault().

It also fix some values:
- BuildTarget.doc_scrape_examples is removed. It seems to be some
  experimental cargo feature, but I haven't found documentation that
  says it should be part of the manifest. It was also missing from raw
  manifest.
- BuildTarget.edition does not default to 2015, it default to package's
  edition, which itself default to 2015.
- bench value defaults to False for tests.
- Dependency.path must be relative to its Cargo.toml location. If the
  value comes from the package it can be used as-is, but if it comes
  from workspace it must be made relative.
- Library.name default to its package name with dash replaced with
  underscores.

1 files changed, 6 insertions, 7 deletions

diff --git a/unittests/cargotests.py b/unittests/cargotests.py
index 89b360512..22d77b35f 100644
--- a/unittests/cargotests.py
+++ b/unittests/cargotests.py
@@ -416,29 +416,28 @@ class CargoTomlTest(unittest.TestCase):
 
         self.assertEqual(manifest.lib.name, 'pango')
         self.assertEqual(manifest.lib.crate_type, ['lib'])
-        self.assertEqual(manifest.lib.path, os.path.join('src', 'lib.rs'))
+        self.assertEqual(manifest.lib.path, 'src/lib.rs')
         self.assertEqual(manifest.lib.test, True)
         self.assertEqual(manifest.lib.doctest, True)
         self.assertEqual(manifest.lib.bench, True)
         self.assertEqual(manifest.lib.doc, True)
         self.assertEqual(manifest.lib.harness, True)
-        self.assertEqual(manifest.lib.edition, '2015')
+        self.assertEqual(manifest.lib.edition, '2021')
         self.assertEqual(manifest.lib.required_features, [])
         self.assertEqual(manifest.lib.plugin, False)
         self.assertEqual(manifest.lib.proc_macro, False)
-        self.assertEqual(manifest.lib.doc_scrape_examples, True)
 
         self.assertEqual(len(manifest.test), 1)
         self.assertEqual(manifest.test[0].name, 'check_gir')
         self.assertEqual(manifest.test[0].crate_type, ['bin'])
         self.assertEqual(manifest.test[0].path, 'tests/check_gir.rs')
-        self.assertEqual(manifest.lib.path, os.path.join('src', 'lib.rs'))
+        self.assertEqual(manifest.lib.path, 'src/lib.rs')
         self.assertEqual(manifest.test[0].test, True)
-        self.assertEqual(manifest.test[0].doctest, False)
-        self.assertEqual(manifest.test[0].bench, True)
+        self.assertEqual(manifest.test[0].doctest, True)
+        self.assertEqual(manifest.test[0].bench, False)
         self.assertEqual(manifest.test[0].doc, False)
         self.assertEqual(manifest.test[0].harness, True)
-        self.assertEqual(manifest.test[0].edition, '2015')
+        self.assertEqual(manifest.test[0].edition, '2021')
         self.assertEqual(manifest.test[0].required_features, [])
         self.assertEqual(manifest.test[0].plugin, False)