diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py index d3350bba6..9f2e649ec 100644 --- a/mesonbuild/backend/ninjabackend.py +++ b/mesonbuild/backend/ninjabackend.py @@ -45,7 +45,7 @@ from ..mesonlib import ( ) from ..mesonlib import get_compiler_for_source, has_path_sep, OptionKey from .backends import CleanTrees -from ..build import InvalidArguments +from ..build import GeneratedList, InvalidArguments from ..interpreter import Interpreter if T.TYPE_CHECKING: @@ -1581,12 +1581,23 @@ int dummy; args = rustc.compiler_args() # Compiler args for compiling this target args += compilers.get_base_compile_args(base_proxy, rustc) + self.generate_generator_list_rules(target) main_rust_file = None for i in target.get_sources(): if not rustc.can_compile(i): raise InvalidArguments('Rust target {} contains a non-rust source file.'.format(target.get_basename())) if main_rust_file is None: main_rust_file = i.rel_to_builddir(self.build_to_src) + for g in target.get_generated_sources(): + for i in g.get_outputs(): + if not rustc.can_compile(i): + raise InvalidArguments('Rust target {} contains a non-rust source file.'.format(target.get_basename())) + if isinstance(g, GeneratedList): + fname = os.path.join(self.get_target_private_dir(target), i) + else: + fname = i + if main_rust_file is None: + main_rust_file = fname if main_rust_file is None: raise RuntimeError('A Rust target has no Rust sources. This is weird. Also a bug. Please report') target_name = os.path.join(target.subdir, target.get_filename()) diff --git a/mesonbuild/build.py b/mesonbuild/build.py index fa7c140ef..13783d1a2 100644 --- a/mesonbuild/build.py +++ b/mesonbuild/build.py @@ -569,7 +569,7 @@ class BuildTarget(Target): unity_opt = environment.coredata.get_option(OptionKey('unity')) self.is_unity = unity_opt == 'on' or (unity_opt == 'subprojects' and subproject != '') self.environment = environment - self.sources = [] + self.sources: T.List[File] = [] self.compilers = OrderedDict() # type: OrderedDict[str, Compiler] self.objects = [] self.external_deps = [] @@ -588,7 +588,7 @@ class BuildTarget(Target): self.need_install = False self.pch = {} self.extra_args: T.Dict[str, T.List['FileOrString']] = {} - self.generated = [] + self.generated: T.Sequence[T.Union[GeneratedList, CustomTarget, CustomTargetIndex]] = [] self.d_features = {} self.pic = False self.pie = False @@ -1414,7 +1414,14 @@ You probably should put it in link_with instead.''') def uses_rust(self) -> bool: """Is this target a rust target.""" - return self.sources and self.sources[0].fname.endswith('.rs') + 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 + return False def get_using_msvc(self): ''' @@ -1434,11 +1441,13 @@ You probably should put it in link_with instead.''') 2. If the target contains only objects, process_compilers guesses and picks the first compiler that smells right. ''' - compiler, _ = self.get_clink_dynamic_linker_and_stdlibs() + # Rustc can use msvc style linkers + if self.uses_rust(): + compiler = self.environment.coredata.compilers[self.for_machine]['rust'] + else: + compiler, _ = self.get_clink_dynamic_linker_and_stdlibs() # Mixing many languages with MSVC is not supported yet so ignore stdlibs. - if compiler and compiler.get_linker_id() in {'link', 'lld-link', 'xilink', 'optlink'}: - return True - return False + return compiler and compiler.get_linker_id() in {'link', 'lld-link', 'xilink', 'optlink'} def check_module_linking(self): ''' diff --git a/test cases/rust/11 generated main/gen.py b/test cases/rust/11 generated main/gen.py new file mode 100644 index 000000000..ebbc2a7a6 --- /dev/null +++ b/test cases/rust/11 generated main/gen.py @@ -0,0 +1,16 @@ +#!/usr/bin/env python3 + +import argparse + + +def main() -> None: + parser = argparse.ArgumentParser() + parser.add_argument('out') + args = parser.parse_args() + + with open(args.out, 'w') as f: + f.write('fn main() { println!("I prefer tarnish, actually.") }') + + +if __name__ == "__main__": + main() diff --git a/test cases/rust/11 generated main/meson.build b/test cases/rust/11 generated main/meson.build new file mode 100644 index 000000000..474981658 --- /dev/null +++ b/test cases/rust/11 generated main/meson.build @@ -0,0 +1,16 @@ +project('generated rust main', 'rust') + +gen = find_program('gen.py') + +c = custom_target( + 'custom_target', + command : [gen, '@OUTPUT@'], + output : ['main.rs'], +) + +executable('custom_target_main', c) +executable('custom_target_index_main', c[0]) + +gen = generator(gen, arguments : ['@OUTPUT@'], output : '@BASENAME@.rs') +# Doesn't actually use gen.py as input, just a limitation of generators +executable('generator_main', gen.process(['gen.py']))