Merge pull request #8706 from dcbaker/wip/2021-04/cython-language

1st class Cython language support

1 files changed, 79 insertions, 0 deletions

diff --git a/mesonbuild/compilers/cython.py b/mesonbuild/compilers/cython.py
new file mode 100644
index 0000000..513f079
--- /dev/null
+++ b/mesonbuild/compilers/cython.py
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright © 2021 Intel Corporation
+
+"""Abstraction for Cython language compilers."""
+
+import typing as T
+
+from .. import coredata
+from ..mesonlib import EnvironmentException, OptionKey
+from .compilers import Compiler
+
+if T.TYPE_CHECKING:
+    from ..coredata import KeyedOptionDictType
+    from ..environment import Environment
+
+
+class CythonCompiler(Compiler):
+
+    """Cython Compiler."""
+
+    language = 'cython'
+    id = 'cython'
+
+    def needs_static_linker(self) -> bool:
+        # We transpile into C, so we don't need any linker
+        return False
+
+    def get_always_args(self) -> T.List[str]:
+        return ['--fast-fail']
+
+    def get_werror_args(self) -> T.List[str]:
+        return ['-Werror']
+
+    def get_output_args(self, outputname: str) -> T.List[str]:
+        return ['-o', outputname]
+
+    def get_optimization_args(self, optimization_level: str) -> T.List[str]:
+        # Cython doesn't have optimization levels itself, the underlying
+        # compiler might though
+        return []
+
+    def sanity_check(self, work_dir: str, environment: 'Environment') -> None:
+        code = 'print("hello world")'
+        with self.cached_compile(code, environment.coredata) as p:
+            if p.returncode != 0:
+                raise EnvironmentException(f'Cython compiler {self.id!r} cannot compile programs')
+
+    def get_buildtype_args(self, buildtype: str) -> T.List[str]:
+        # Cython doesn't implement this, but Meson requires an implementation
+        return []
+
+    def get_pic_args(self) -> T.List[str]:
+        # We can lie here, it's fine
+        return []
+
+    def compute_parameters_with_absolute_paths(self, parameter_list: T.List[str],
+                                               build_dir: str) -> T.List[str]:
+        new: T.List[str] = []
+        for i in parameter_list:
+            new.append(i)
+
+        return new
+
+    def get_options(self) -> 'KeyedOptionDictType':
+        opts = super().get_options()
+        opts.update({
+            OptionKey('version', machine=self.for_machine, lang=self.language): coredata.UserComboOption(
+                'Python version to target',
+                ['2', '3'],
+                '3',
+            )
+        })
+        return opts
+
+    def get_option_compile_args(self, options: 'KeyedOptionDictType') -> T.List[str]:
+        args: T.List[str] = []
+        key = options[OptionKey('version', machine=self.for_machine, lang=self.language)]
+        args.append(f'-{key.value}')
+        return args