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diff --git a/mesonbuild/templates/cstemplates.py b/mesonbuild/templates/cstemplates.py
new file mode 100644
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+++ b/mesonbuild/templates/cstemplates.py
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+# Copyright 2019 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
+
+from mesonbuild.templates.sampleimpl import SampleImpl
+import re
+
+
+hello_cs_template = '''using System;
+
+public class {class_name} {{
+    const String PROJECT_NAME = "{project_name}";
+
+    static int Main(String[] args) {{
+      if (args.Length > 0) {{
+          System.Console.WriteLine(String.Format("{project_name} takes no arguments.."));
+          return 1;
+      }}
+      Console.WriteLine(String.Format("This is project {{0}}.", PROJECT_NAME));
+      return 0;
+    }}
+}}
+
+'''
+
+hello_cs_meson_template = '''project('{project_name}', 'cs',
+  version : '{version}',
+  default_options : ['warning_level=3'])
+
+exe = executable('{exe_name}', '{source_name}',
+  install : true)
+
+test('basic', exe)
+'''
+
+lib_cs_template = '''
+public class {class_name} {{
+    private const int number = 6;
+
+    public int get_number() {{
+      return number;
+    }}
+}}
+
+'''
+
+lib_cs_test_template = '''using System;
+
+public class {class_test} {{
+    static int Main(String[] args) {{
+      if (args.Length > 0) {{
+          System.Console.WriteLine("{project_name} takes no arguments..");
+          return 1;
+      }}
+      {class_name} c = new {class_name}();
+      Boolean result = true;
+      return result.CompareTo(c.get_number() != 6);
+    }}
+}}
+
+'''
+
+lib_cs_meson_template = '''project('{project_name}', 'cs',
+  version : '{version}',
+  default_options : ['warning_level=3'])
+
+stlib = shared_library('{lib_name}', '{source_file}',
+  install : true,
+)
+
+test_exe = executable('{test_exe_name}', '{test_source_file}',
+  link_with : stlib)
+test('{test_name}', test_exe)
+
+# Make this library usable as a Meson subproject.
+{ltoken}_dep = declare_dependency(
+  include_directories: include_directories('.'),
+  link_with : stlib)
+
+'''
+
+
+class CSharpProject(SampleImpl):
+    def __init__(self, options):
+        super().__init__()
+        self.name = options.name
+        self.version = options.version
+
+    def create_executable(self) -> None:
+        lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
+        uppercase_token = lowercase_token.upper()
+        class_name = uppercase_token[0] + lowercase_token[1:]
+        source_name = uppercase_token[0] + lowercase_token[1:] + '.cs'
+        open(source_name, 'w', encoding='utf-8').write(
+            hello_cs_template.format(project_name=self.name,
+                                     class_name=class_name))
+        open('meson.build', 'w', encoding='utf-8').write(
+          hello_cs_meson_template.format(project_name=self.name,
+                                         exe_name=self.name,
+                                         source_name=source_name,
+                                         version=self.version))
+
+    def create_library(self) -> None:
+        lowercase_token = re.sub(r'[^a-z0-9]', '_', self.name.lower())
+        uppercase_token = lowercase_token.upper()
+        class_name = uppercase_token[0] + lowercase_token[1:]
+        class_test = uppercase_token[0] + lowercase_token[1:] + '_test'
+        project_test = lowercase_token + '_test'
+        lib_cs_name = uppercase_token[0] + lowercase_token[1:] + '.cs'
+        test_cs_name = uppercase_token[0] + lowercase_token[1:] + '_test.cs'
+        kwargs = {'utoken': uppercase_token,
+                  'ltoken': lowercase_token,
+                  'class_test': class_test,
+                  'class_name': class_name,
+                  'source_file': lib_cs_name,
+                  'test_source_file': test_cs_name,
+                  'test_exe_name': project_test,
+                  'project_name': self.name,
+                  'lib_name': lowercase_token,
+                  'test_name': lowercase_token,
+                  'version': self.version,
+                  }
+        open(lib_cs_name, 'w', encoding='utf-8').write(lib_cs_template.format(**kwargs))
+        open(test_cs_name, 'w', encoding='utf-8').write(lib_cs_test_template.format(**kwargs))
+        open('meson.build', 'w', encoding='utf-8').write(lib_cs_meson_template.format(**kwargs))