build.py: Simplify uses_rust()
There is no need to check all source files again, if there are .rs
sources then rust compiler is in self.compilers already.
@@ -1582,25 +1582,7 @@ You probably should put it in link_with instead.''')
raise AssertionError(f'Could not get a dynamic linker for build target {self.name!r}')
def uses_rust(self) -> bool:
- """Is this target a rust target."""
- if self.sources:
- first_file = self.sources[0]
- if first_file.fname.endswith('.rs'):
- return True
- elif self.generated:
- if self.generated[0].get_outputs()[0].endswith('.rs'):
- return True
- elif self.structured_sources:
- for v in self.structured_sources.sources.values():
- for s in v:
- if isinstance(s, (str, File)):
- if s.endswith('.rs'):
- return True
- else:
- for ss in s.get_outputs():
- if ss.endswith('.rs'):
- return True
- return False
+ return 'rust' in self.compilers
def get_using_msvc(self) -> bool:
'''
