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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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75 lines
2.5 KiB
75 lines
2.5 KiB
#!/usr/bin/env python3 |
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# Copyright 2021 gRPC authors. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import sys |
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# utility: print a big comment block into a set of files |
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def put_banner(files, banner): |
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for f in files: |
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print('/*', file=f) |
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for line in banner: |
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print(' * %s' % line, file=f) |
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print(' */', file=f) |
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print('', file=f) |
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with open('src/core/lib/promise/detail/switch.h', 'w') as H: |
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# copy-paste copyright notice from this file |
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with open(sys.argv[0]) as my_source: |
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copyright = [] |
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for line in my_source: |
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if line[0] != '#': |
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break |
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for line in my_source: |
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if line[0] == '#': |
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copyright.append(line) |
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break |
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for line in my_source: |
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if line[0] != '#': |
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break |
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copyright.append(line) |
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put_banner([H], [line[2:].rstrip() for line in copyright]) |
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put_banner([H], ["Automatically generated by %s" % sys.argv[0]]) |
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print("#ifndef GRPC_CORE_LIB_PROMISE_DETAIL_SWITCH_H", file=H) |
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print("#define GRPC_CORE_LIB_PROMISE_DETAIL_SWITCH_H", file=H) |
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print('', file=H) |
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print('#include <grpc/impl/codegen/port_platform.h>', file=H) |
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print('', file=H) |
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print("#include <stdlib.h>", file=H) |
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print('', file=H) |
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print("namespace grpc_core {", file=H) |
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for n in range(1, 33): |
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print('', file=H) |
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print("template <typename R, %s> R Switch(char idx, %s) {" % ( |
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", ".join("typename F%d" % i for i in range(0, n)), |
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", ".join("F%d f%d" % (i, i) for i in range(0, n)), |
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), |
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file=H) |
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print(" switch (idx) {", file=H) |
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for i in range(0, n): |
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print(" case %d: return f%d();" % (i, i), file=H) |
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print(" }", file=H) |
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print(" abort();", file=H) |
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print("}", file=H) |
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print('', file=H) |
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print("}", file=H) |
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print('', file=H) |
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print("#endif // GRPC_CORE_LIB_PROMISE_DETAIL_SWITCH_H", file=H)
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