1 files changed, 140 insertions, 0 deletions
diff --git a/mesonbuild/compilers/vala.py b/mesonbuild/compilers/vala.py
new file mode 100644
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+++ b/mesonbuild/compilers/vala.py
@@ -0,0 +1,140 @@
+# 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.
+from __future__ import annotations
+
+import os.path
+import typing as T
+
+from .. import mlog
+from ..mesonlib import EnvironmentException, version_compare, OptionKey
+
+from .compilers import Compiler, LibType
+
+if T.TYPE_CHECKING:
+    from ..envconfig import MachineInfo
+    from ..environment import Environment
+    from ..mesonlib import MachineChoice
+
+class ValaCompiler(Compiler):
+
+    language = 'vala'
+    id = 'valac'
+
+    def __init__(self, exelist: T.List[str], version: str, for_machine: MachineChoice,
+                 is_cross: bool, info: 'MachineInfo'):
+        super().__init__([], exelist, version, for_machine, info, is_cross=is_cross)
+        self.version = version
+        self.base_options = {OptionKey('b_colorout')}
+
+    def needs_static_linker(self) -> bool:
+        return False # Because compiles into C.
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        return []
+
+    def get_debug_args(self, is_debug: bool) -> T.List[str]:
+        return ['--debug'] if is_debug else []
+
+    def get_output_args(self, target: str) -> T.List[str]:
+        return [] # Because compiles into C.
+
+    def get_compile_only_args(self) -> T.List[str]:
+        return [] # Because compiles into C.
+
+    def get_pic_args(self) -> T.List[str]:
+        return []
+
+    def get_pie_args(self) -> T.List[str]:
+        return []
+
+    def get_pie_link_args(self) -> T.List[str]:
+        return []
+
+    def get_always_args(self) -> T.List[str]:
+        return ['-C']
+
+    def get_warn_args(self, warning_level: str) -> T.List[str]:
+        return []
+
+    def get_no_warn_args(self) -> T.List[str]:
+        return ['--disable-warnings']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['--fatal-warnings']
+
+    def get_colorout_args(self, colortype: str) -> T.List[str]:
+        if version_compare(self.version, '>=0.37.1'):
+            return ['--color=' + colortype]
+        return []
+
+    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[:9] == '--girdir=':
+                parameter_list[idx] = i[:9] + os.path.normpath(os.path.join(build_dir, i[9:]))
+            if i[:10] == '--vapidir=':
+                parameter_list[idx] = i[:10] + os.path.normpath(os.path.join(build_dir, i[10:]))
+            if i[:13] == '--includedir=':
+                parameter_list[idx] = i[:13] + os.path.normpath(os.path.join(build_dir, i[13:]))
+            if i[:14] == '--metadatadir=':
+                parameter_list[idx] = i[:14] + os.path.normpath(os.path.join(build_dir, i[14:]))
+
+        return parameter_list
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'class MesonSanityCheck : Object { }'
+        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 self.cached_compile(code, environment.coredata, extra_args=extra_flags, mode='compile') as p:
+            if p.returncode != 0:
+                msg = f'Vala compiler {self.name_string()!r} can not compile programs'
+                raise EnvironmentException(msg)
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        if buildtype in {'debug', 'debugoptimized', 'minsize'}:
+            return ['--debug']
+        return []
+
+    def find_library(self, libname: str, env: 'Environment', extra_dirs: T.List[str],
+                     libtype: LibType = LibType.PREFER_SHARED) -> T.Optional[T.List[str]]:
+        if extra_dirs and isinstance(extra_dirs, str):
+            extra_dirs = [extra_dirs]
+        # Valac always looks in the default vapi dir, so only search there if
+        # no extra dirs are specified.
+        if not extra_dirs:
+            code = 'class MesonFindLibrary : Object { }'
+            args: T.List[str] = []
+            args += env.coredata.get_external_args(self.for_machine, self.language)
+            vapi_args = ['--pkg', libname]
+            args += vapi_args
+            with self.cached_compile(code, env.coredata, extra_args=args, mode='compile') as p:
+                if p.returncode == 0:
+                    return vapi_args
+        # Not found? Try to find the vapi file itself.
+        for d in extra_dirs:
+            vapi = os.path.join(d, libname + '.vapi')
+            if os.path.isfile(vapi):
+                return [vapi]
+        mlog.debug(f'Searched {extra_dirs!r} and {libname!r} wasn\'t found')
+        return None
+
+    def thread_flags(self, env: 'Environment') -> T.List[str]:
+        return []
+
+    def thread_link_flags(self, env: 'Environment') -> T.List[str]:
+        return []