1 files changed, 127 insertions, 0 deletions
diff --git a/meson/mesonbuild/compilers/swift.py b/meson/mesonbuild/compilers/swift.py
new file mode 100644
index 000000000..2d52e2182
--- /dev/null
+++ b/meson/mesonbuild/compilers/swift.py
@@ -0,0 +1,127 @@
+# Copyright 2012-2017 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import subprocess, os.path
+import typing as T
+
+from ..mesonlib import EnvironmentException, MachineChoice
+
+from .compilers import Compiler, swift_buildtype_args, clike_debug_args
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..linkers import DynamicLinker
+
+swift_optimization_args = {
+    '0': [],
+    'g': [],
+    '1': ['-O'],
+    '2': ['-O'],
+    '3': ['-O'],
+    's': ['-O'],
+}  # type: T.Dict[str, T.List[str]]
+
+class SwiftCompiler(Compiler):
+
+    LINKER_PREFIX = ['-Xlinker']
+    language = 'swift'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo', full_version: T.Optional[str] = None,
+                 linker: T.Optional['DynamicLinker'] = None):
+        super().__init__(exelist, version, for_machine, info,
+                         is_cross=is_cross, full_version=full_version,
+                         linker=linker)
+        self.version = version
+        self.id = 'llvm'
+
+    def needs_static_linker(self) -> bool:
+        return True
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['--fatal-warnings']
+
+    def get_dependency_gen_args(self, outtarget: str, outfile: str) -> T.List[str]:
+        return ['-emit-dependencies']
+
+    def depfile_for_object(self, objfile: str) -> str:
+        return os.path.splitext(objfile)[0] + '.' + self.get_depfile_suffix()
+
+    def get_depfile_suffix(self) -> str:
+        return 'd'
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return ['-o', target]
+
+    def get_header_import_args(self, headername: str) -> T.List[str]:
+        return ['-import-objc-header', headername]
+
+    def get_warn_args(self, level: str) -> T.List[str]:
+        return []
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        return swift_buildtype_args[buildtype]
+
+    def get_std_exe_link_args(self) -> T.List[str]:
+        return ['-emit-executable']
+
+    def get_module_args(self, modname: str) -> T.List[str]:
+        return ['-module-name', modname]
+
+    def get_mod_gen_args(self) -> T.List[str]:
+        return ['-emit-module']
+
+    def get_include_args(self, path: str, is_system: bool) -> T.List[str]:
+        return ['-I' + path]
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return ['-c']
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        for idx, i in enumerate(parameter_list):
+            if i[:2] == '-I' or i[:2] == '-L':
+                parameter_list[idx] = i[:2] + os.path.normpath(os.path.join(build_dir, i[2:]))
+
+        return parameter_list
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        src = 'swifttest.swift'
+        source_name = os.path.join(work_dir, src)
+        output_name = os.path.join(work_dir, 'swifttest')
+        extra_flags: T.List[str] = []
+        extra_flags += environment.coredata.get_external_args(self.for_machine, self.language)
+        if self.is_cross:
+            extra_flags += self.get_compile_only_args()
+        else:
+            extra_flags += environment.coredata.get_external_link_args(self.for_machine, self.language)
+        with open(source_name, 'w', encoding='utf-8') as ofile:
+            ofile.write('''print("Swift compilation is working.")
+''')
+        pc = subprocess.Popen(self.exelist + extra_flags + ['-emit-executable', '-o', output_name, src], cwd=work_dir)
+        pc.wait()
+        if pc.returncode != 0:
+            raise EnvironmentException('Swift compiler %s can not compile programs.' % self.name_string())
+        if self.is_cross:
+            # Can't check if the binaries run so we have to assume they do
+            return
+        if subprocess.call(output_name) != 0:
+            raise EnvironmentException('Executables created by Swift compiler %s are not runnable.' % self.name_string())
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return clike_debug_args[is_debug]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return swift_optimization_args[optimization_level]