77 lines
2.8 KiB
Perl
77 lines
2.8 KiB
Perl
#!/usr/bin/perl
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# -*- cperl -*-
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# Copyright (c) 2020, 2024, Oracle and/or its affiliates.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License, version 2.0,
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# as published by the Free Software Foundation.
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#
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# This program is designed to work with certain software (including
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# but not limited to OpenSSL) that is licensed under separate terms,
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# as designated in a particular file or component or in included license
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# documentation. The authors of MySQL hereby grant you an additional
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# permission to link the program and your derivative works with the
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# separately licensed software that they have either included with
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# the program or referenced in the documentation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License, version 2.0, for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# Process input plugin/x/protocol/*.proto files to convert them to pseudo-C++ code
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use strict;
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use warnings;
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my $line;
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my $open_namespace = 0;
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while (<>) {
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$line = $_;
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# comment on irrelevant lines
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$line =~ s/syntax\s*=/\/\/ syntax =/g;
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$line =~ s/import/\/\/ import =/g;
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$line =~ s/option\s+java_package\s*=/\/\/ option java_package =/g;
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# transform 'package' to 'namespace'
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if ($line =~ s/package (\w+)\s*;/namespace $1 {/g) { $open_namespace +=1 };
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if ($line =~ s/package (\w+)\.(\w+)\s*;/namespace $1 {namespace $2 {/g) { $open_namespace +=2; }
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# transform canonical class name
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$line =~ s/([A-Z]\w+)\.([A-Z]\w+)\.([A-Z]\w+) /$1::$2::$3 /g;
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$line =~ s/([A-Z]\w+)\.([A-Z]\w+) /$1::$2 /g;
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# transform 'enum' value
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$line =~ s/([A-Z_]+)\s*=\s*(\d+);/$1 = $2,/g;
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# transform 'message' to 'struct'
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$line =~ s/message +(\w+)\s+{/struct $1 { /g;
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# transform 'extended option message' to 'struct' with ancestor
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$line =~ s/extend google.protobuf.MessageOptions/struct option: public google::protobuf::MessageOptions/g;
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# transform initialization of '(client|server)_message_id' field
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$line =~ s/option *\(client_message_id\)\s*=\s*(.*)/ClientMessages::Type client_message_id = $1/g;
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$line =~ s/option *\(server_message_id\)\s*=\s*(.*)/ServerMessages::Type server_message_id = $1/g;
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# add semicolon at the end of definition of 'enum' or 'message'
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$line =~ s/^(\s*)}$/$1};/g;
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# remove conflict between name of message field and C++ keyword
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$line =~ s/string\s*namespace\s*=/string namespace_ =/g;
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print $line;
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}
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# add (if necessary) closing brace of open namespace
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while ($open_namespace > 0) {
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print "} // namespace\n";
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$open_namespace--;
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}
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