compilers: don't export every compiler as a top-level property

This is wasteful and generally unneeded, since code can just use the
compiler they detected instead of manually poking at the internals of
this subpackage.

It also avoids importing an absolute ton of code the instant one runs
`from . import compilers`

mesonbuild/compilers/__init__.py

@@ -52,83 +52,6 @@ __all__ = [
     'detect_rust_compiler',
     'detect_d_compiler',
     'detect_swift_compiler',
-
-    'AppleClangCCompiler',
-    'AppleClangCPPCompiler',
-    'AppleClangObjCCompiler',
-    'AppleClangObjCPPCompiler',
-    'ArmCCompiler',
-    'ArmCPPCompiler',
-    'ArmclangCCompiler',
-    'ArmclangCPPCompiler',
-    'CCompiler',
-    'ClangCCompiler',
-    'ClangCompiler',
-    'ClangCPPCompiler',
-    'ClangObjCCompiler',
-    'ClangObjCPPCompiler',
-    'ClangClCCompiler',
-    'ClangClCPPCompiler',
-    'CPPCompiler',
-    'DCompiler',
-    'DmdDCompiler',
-    'FortranCompiler',
-    'G95FortranCompiler',
-    'GnuCCompiler',
-    'ElbrusCCompiler',
-    'EmscriptenCCompiler',
-    'GnuCompiler',
-    'GnuLikeCompiler',
-    'GnuCPPCompiler',
-    'ElbrusCPPCompiler',
-    'EmscriptenCPPCompiler',
-    'GnuDCompiler',
-    'GnuFortranCompiler',
-    'ElbrusFortranCompiler',
-    'FlangFortranCompiler',
-    'GnuObjCCompiler',
-    'GnuObjCPPCompiler',
-    'IntelGnuLikeCompiler',
-    'IntelVisualStudioLikeCompiler',
-    'IntelCCompiler',
-    'IntelCPPCompiler',
-    'IntelClCCompiler',
-    'IntelClCPPCompiler',
-    'IntelFortranCompiler',
-    'IntelClFortranCompiler',
-    'JavaCompiler',
-    'LLVMDCompiler',
-    'MonoCompiler',
-    'CudaCompiler',
-    'VisualStudioCsCompiler',
-    'NAGFortranCompiler',
-    'ObjCCompiler',
-    'ObjCPPCompiler',
-    'Open64FortranCompiler',
-    'PathScaleFortranCompiler',
-    'NvidiaHPC_CCompiler',
-    'NvidiaHPC_CPPCompiler',
-    'NvidiaHPC_FortranCompiler',
-    'PGICCompiler',
-    'PGICPPCompiler',
-    'PGIFortranCompiler',
-    'RustCompiler',
-    'ClippyRustCompiler',
-    'CcrxCCompiler',
-    'CcrxCPPCompiler',
-    'Xc16CCompiler',
-    'CompCertCCompiler',
-    'C2000CCompiler',
-    'C2000CPPCompiler',
-    'TICCompiler',
-    'TICPPCompiler',
-    'SunFortranCompiler',
-    'SwiftCompiler',
-    'ValaCompiler',
-    'VisualStudioLikeCompiler',
-    'VisualStudioCCompiler',
-    'VisualStudioCPPCompiler',
-    'CythonCompiler',
 ]
 
 # Bring symbols from each module into compilers sub-package namespace
@@ -172,87 +95,3 @@ from .detect import (
     detect_d_compiler,
     detect_swift_compiler,
 )
-from .c import (
-    CCompiler,
-    AppleClangCCompiler,
-    ArmCCompiler,
-    ArmclangCCompiler,
-    ClangCCompiler,
-    ClangClCCompiler,
-    GnuCCompiler,
-    ElbrusCCompiler,
-    EmscriptenCCompiler,
-    IntelCCompiler,
-    IntelClCCompiler,
-    NvidiaHPC_CCompiler,
-    PGICCompiler,
-    CcrxCCompiler,
-    Xc16CCompiler,
-    CompCertCCompiler,
-    C2000CCompiler,
-    TICCompiler,
-    VisualStudioCCompiler,
-)
-from .cpp import (
-    CPPCompiler,
-    AppleClangCPPCompiler,
-    ArmCPPCompiler,
-    ArmclangCPPCompiler,
-    ClangCPPCompiler,
-    ClangClCPPCompiler,
-    GnuCPPCompiler,
-    ElbrusCPPCompiler,
-    EmscriptenCPPCompiler,
-    IntelCPPCompiler,
-    IntelClCPPCompiler,
-    NvidiaHPC_CPPCompiler,
-    PGICPPCompiler,
-    CcrxCPPCompiler,
-    C2000CPPCompiler,
-    TICPPCompiler,
-    VisualStudioCPPCompiler,
-)
-from .cs import MonoCompiler, VisualStudioCsCompiler
-from .d import (
-    DCompiler,
-    DmdDCompiler,
-    GnuDCompiler,
-    LLVMDCompiler,
-)
-from .cuda import CudaCompiler
-from .fortran import (
-    FortranCompiler,
-    G95FortranCompiler,
-    GnuFortranCompiler,
-    ElbrusFortranCompiler,
-    FlangFortranCompiler,
-    IntelFortranCompiler,
-    IntelClFortranCompiler,
-    NAGFortranCompiler,
-    Open64FortranCompiler,
-    PathScaleFortranCompiler,
-    NvidiaHPC_FortranCompiler,
-    PGIFortranCompiler,
-    SunFortranCompiler,
-)
-from .java import JavaCompiler
-from .objc import (
-    ObjCCompiler,
-    AppleClangObjCCompiler,
-    ClangObjCCompiler,
-    GnuObjCCompiler,
-)
-from .objcpp import (
-    ObjCPPCompiler,
-    AppleClangObjCPPCompiler,
-    ClangObjCPPCompiler,
-    GnuObjCPPCompiler,
-)
-from .rust import RustCompiler, ClippyRustCompiler
-from .swift import SwiftCompiler
-from .vala import ValaCompiler
-from .mixins.visualstudio import VisualStudioLikeCompiler
-from .mixins.gnu import GnuCompiler, GnuLikeCompiler
-from .mixins.intel import IntelGnuLikeCompiler, IntelVisualStudioLikeCompiler
-from .mixins.clang import ClangCompiler
-from .cython import CythonCompiler

unittests/allplatformstests.py

@@ -45,9 +45,12 @@ from mesonbuild.mesonlib import (
     MesonException, EnvironmentException, OptionKey
 )
 
+from mesonbuild.compilers.mixins.clang import ClangCompiler
+from mesonbuild.compilers.mixins.gnu import GnuCompiler
+from mesonbuild.compilers.mixins.intel import IntelGnuLikeCompiler
+from mesonbuild.compilers.c import VisualStudioCCompiler, ClangClCCompiler
+from mesonbuild.compilers.cpp import VisualStudioCPPCompiler, ClangClCPPCompiler
 from mesonbuild.compilers import (
-    GnuCompiler, ClangCompiler, IntelGnuLikeCompiler, VisualStudioCCompiler,
-    VisualStudioCPPCompiler, ClangClCCompiler, ClangClCPPCompiler,
     detect_static_linker, detect_c_compiler, compiler_from_language,
     detect_compiler_for
 )

unittests/internaltests.py

@@ -32,11 +32,12 @@ import mesonbuild.mlog
 import mesonbuild.depfile
 import mesonbuild.dependencies.base
 import mesonbuild.dependencies.factory
-import mesonbuild.compilers
 import mesonbuild.envconfig
 import mesonbuild.environment
 import mesonbuild.modules.gnome
 from mesonbuild import coredata
+from mesonbuild.compilers.c import ClangCCompiler, GnuCCompiler
+from mesonbuild.compilers.d import DmdDCompiler
 from mesonbuild.interpreterbase import typed_pos_args, InvalidArguments, ObjectHolder
 from mesonbuild.interpreterbase import typed_pos_args, InvalidArguments, typed_kwargs, ContainerTypeInfo, KwargInfo
 from mesonbuild.mesonlib import (
@@ -116,7 +117,7 @@ class InternalTests(unittest.TestCase):
                          stat.S_IRGRP | stat.S_IXGRP)
 
     def test_compiler_args_class_none_flush(self):
-        cc = mesonbuild.compilers.ClangCCompiler([], 'fake', MachineChoice.HOST, False, mock.Mock())
+        cc = ClangCCompiler([], 'fake', MachineChoice.HOST, False, mock.Mock())
         a = cc.compiler_args(['-I.'])
         #first we are checking if the tree construction deduplicates the correct -I argument
         a += ['-I..']
@@ -133,14 +134,14 @@ class InternalTests(unittest.TestCase):
         self.assertEqual(a, ['-I.', '-I./tests2/', '-I./tests/', '-I..'])
 
     def test_compiler_args_class_d(self):
-        d = mesonbuild.compilers.DmdDCompiler([], 'fake', MachineChoice.HOST, 'info', 'arch')
+        d = DmdDCompiler([], 'fake', MachineChoice.HOST, 'info', 'arch')
         # check include order is kept when deduplicating
         a = d.compiler_args(['-Ifirst', '-Isecond', '-Ithird'])
         a += ['-Ifirst']
         self.assertEqual(a, ['-Ifirst', '-Isecond', '-Ithird'])
 
     def test_compiler_args_class_clike(self):
-        cc = mesonbuild.compilers.ClangCCompiler([], 'fake', MachineChoice.HOST, False, mock.Mock())
+        cc = ClangCCompiler([], 'fake', MachineChoice.HOST, False, mock.Mock())
         # Test that empty initialization works
         a = cc.compiler_args()
         self.assertEqual(a, [])
@@ -222,7 +223,7 @@ class InternalTests(unittest.TestCase):
     def test_compiler_args_class_gnuld(self):
         ## Test --start/end-group
         linker = mesonbuild.linkers.GnuBFDDynamicLinker([], MachineChoice.HOST, '-Wl,', [])
-        gcc = mesonbuild.compilers.GnuCCompiler([], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
+        gcc = GnuCCompiler([], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
         ## Ensure that the fake compiler is never called by overriding the relevant function
         gcc.get_default_include_dirs = lambda: ['/usr/include', '/usr/share/include', '/usr/local/include']
         ## Test that 'direct' append and extend works
@@ -250,7 +251,7 @@ class InternalTests(unittest.TestCase):
     def test_compiler_args_remove_system(self):
         ## Test --start/end-group
         linker = mesonbuild.linkers.GnuBFDDynamicLinker([], MachineChoice.HOST, '-Wl,', [])
-        gcc = mesonbuild.compilers.GnuCCompiler([], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
+        gcc = GnuCCompiler([], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
         ## Ensure that the fake compiler is never called by overriding the relevant function
         gcc.get_default_include_dirs = lambda: ['/usr/include', '/usr/share/include', '/usr/local/include']
         ## Test that 'direct' append and extend works

unittests/linuxliketests.py

@@ -40,9 +40,11 @@ from mesonbuild.mesonlib import (
 )
 from mesonbuild.compilers import (
     detect_c_compiler, detect_cpp_compiler, compiler_from_language,
-    AppleClangCCompiler, AppleClangCPPCompiler, AppleClangObjCCompiler,
-    AppleClangObjCPPCompiler
 )
+from mesonbuild.compilers.c import AppleClangCCompiler
+from mesonbuild.compilers.cpp import AppleClangCPPCompiler
+from mesonbuild.compilers.objc import AppleClangObjCCompiler
+from mesonbuild.compilers.objcpp import AppleClangObjCPPCompiler
 from mesonbuild.dependencies import PkgConfigDependency
 import mesonbuild.modules.pkgconfig