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|
#!/usr/bin/ruby
#
# General purpose C++ code generation.
#
require 'amqpgen'
require 'set'
Copyright=<<EOS
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
///
/// This file was automatically generated from the AMQP specification.
/// Do not edit.
///
EOS
CppKeywords = Set.new(["and", "and_eq", "asm", "auto", "bitand",
"bitor", "bool", "break", "case", "catch", "char",
"class", "compl", "const", "const_cast", "continue",
"default", "delete", "do", "DomainInfo", "double",
"dynamic_cast", "else", "enum", "explicit", "extern",
"false", "float", "for", "friend", "goto", "if",
"inline", "int", "long", "mutable", "namespace", "new",
"not", "not_eq", "operator", "or", "or_eq", "private",
"protected", "public", "register", "reinterpret_cast",
"return", "short", "signed", "sizeof", "static",
"static_cast", "struct", "switch", "template", "this",
"throw", "true", "try", "typedef", "typeid",
"typename", "union", "unsigned", "using", "virtual",
"void", "volatile", "wchar_t", "while", "xor",
"xor_eq"])
# Names that need a trailing "_" to avoid clashes.
CppMangle = CppKeywords+Set.new(["string"])
class String
def cppsafe()
CppMangle.include?(self) ? self+"_" : self
end
end
# Additional methods for AmqpField.
class AmqpField
def cppname() @cache_cppname ||= name.lcaps.cppsafe; end
def cpptype() @cache_cpptype ||= defined_as_struct ? "const " + field_type.caps + "&" : amqp_root.param_type(field_type); end
def cpp_member_type() @cache_cpp_member_type ||= defined_as_struct ? field_type.caps : amqp_root.member_type(field_type); end
def cppret_type() @cache_cpptype ||= amqp_root.return_type(field_type); end
def type_name () @type_name ||= cpptype+" "+cppname; end
def bit?() field_type == "bit" end
end
# Additional methods for AmqpMethod
class AmqpMethod
def cppname() name.lcaps.cppsafe; end
def param_names() @param_names ||= fields.collect { |f| f.cppname }; end
def signature() @signature ||= fields.collect { |f| f.cpptype+" "+f.cppname }; end
def body_name() amqp_parent.name.caps+name.caps+"Body"; end
end
# Additional methods for AmqpClass
class AmqpClass
def cppname() name.caps; end
def body_name() cppname+"Body"
end
end
class AmqpStruct
def cppname()
@cache_cppname ||= cppname_impl()
end
private
def cppname_impl()
#The name of the struct comes from the context it appears in:
#structs defined in a domain get their name from the domain
#element, structs defined in a result element get their name by
#appending 'Result' to the enclosing method name.
if (domain?)
parent.attributes["name"].caps
else
if (result?)
method = parent.parent
method.parent.attributes["name"].caps + method.attributes["name"].caps + "Result"
else
raise "Bad struct context: expected struct to be child of <domain> or <result>"
end
end
end
end
# Additional methos for AmqpRoot
class AmqpRoot
# FIXME aconway 2007-06-20: fix u_int types, should be uint
CppTypeMap={
"bit"=> ["bool"],
"octet"=>["u_int8_t"],
"short"=>["u_int16_t"],
"long"=>["u_int32_t"],
"longlong"=>["u_int64_t"],
"timestamp"=>["u_int64_t"],
"longstr"=>["string", "const string&"],
"shortstr"=>["string", "const string&"],
"table"=>["FieldTable", "const FieldTable&", "const FieldTable&"],
"content"=>["Content", "const Content&", "const Content&"],
"rfc1982-long-set"=>["SequenceNumberSet", "const SequenceNumberSet&", "const SequenceNumberSet&"],
"long-struct"=>["string", "const string&"],
"uuid"=>["string", "const string&"] # FIXME should be: ["Uuid", "const Uuid&", "const Uuid&"]
}
def lookup(amqptype)
CppTypeMap[amqptype] or raise "No cpp type for #{amqptype}";
end
def member_type(amqptype) lookup(amqptype)[0]; end
def param_type(amqptype) t=lookup(amqptype); t[1] or t[0]; end
def return_type(amqptype) t=lookup(amqptype); t[2] or t[0]; end
end
class CppGen < Generator
def initialize(outdir, *specs)
super(outdir,*specs)
end
# Write a header file.
def h_file(path)
path = (/\.h$/ === path ? path : path+".h")
guard=path.upcase.tr('./-','_')
file(path) {
gen "#ifndef #{guard}\n"
gen "#define #{guard}\n"
gen Copyright
yield
gen "#endif /*!#{guard}*/\n"
}
end
# Write a .cpp file.
def cpp_file(path)
path = (/\.cpp$/ === path ? path : path+".cpp")
file(path) do
gen Copyright
yield
end
end
def include(header)
header+=".h" unless /(\.h|[">])$/===header
header="\"#{header}\"" unless /(^<.*>$)|(^".*"$)/===header
genl "#include #{header}"
end
def scope(open="{",close="}", &block)
genl open; indent(&block); genl close
end
def namespace(name, &block)
genl
names = name.split("::")
names.each { |n| genl "namespace #{n} {" }
genl
yield
genl
genl('}'*names.size+" // "+name)
genl
end
def struct_class(type, name, bases, &block)
genl
gen "#{type} #{name}"
if (!bases.empty?)
genl ":"
indent { gen "#{bases.join(",\n")}" }
end
genl
scope("{","};") { yield }
end
def struct(name, *bases, &block) struct_class("struct", name, bases, &block); end
def cpp_class(name, *bases, &block) struct_class("class", name, bases, &block); end
def typedef(type, name) genl "typedef #{type} #{name};\n" end
def variant(types) "boost::variant<#{types.join(", ")}>"; end
def variantl(types) "boost::variant<#{types.join(", \n")}>"; end
def blank_variant(types) variant(["boost::blank"]+types); end
def tuple(types) "boost::tuple<#{types.join(', ')}>"; end
def public() outdent { genl "public:" } end
def private() outdent { genl "private:" } end
def protected() outdent { genl "protected:" } end
end
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