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#!/usr/bin/env ruby
$: << ".." # Include .. in load path
require 'cppgen'
class MethodHolderGen < CppGen
def initialize(outdir, amqp)
super(outdir, amqp)
@namespace="qpid::framing"
@classname="MethodHolder"
@filename="qpid/framing/MethodHolder"
end
def gen_max_size()
# Generate program to generate MaxSize.h
cpp_file("generate_#{@classname}MaxSize_h") {
@amqp.amqp_methods.each { |m| include "qpid/framing/#{m.body_name}" }
genl
include "<algorithm>"
include "<fstream>"
genl
genl "using namespace std;"
genl "using namespace qpid::framing;"
genl
scope("int main(int, char** argv) {") {
genl "size_t maxSize=0;"
@amqp.amqp_methods.each { |m|
genl "maxSize=max(maxSize, sizeof(#{m.body_name}));" }
gen <<EOS
ofstream out("#{@filename}MaxSize.h");
out << "// GENERATED CODE: generated by " << argv[0] << endl;
out << "namespace qpid{ namespace framing { " << endl;
out << "const size_t MAX_METHODBODY_SIZE=" << maxSize << ";" << endl;
out << "}}" << endl;
EOS
}
}
end
def gen_construct
cpp_file(@filename+"_construct") {
include @filename
@amqp.amqp_methods.each { |m| include "qpid/framing/#{m.body_name}" }
genl
namespace(@namespace) {
scope("void #{@classname}::construct(const Id& newId) {") {
scope("switch (newId.first) {") {
@amqp.amqp_classes.each { |c|
scope("case #{c.index}: switch(newId.second) {") {
c.amqp_methods.each { |m|
genl "case #{m.index}: blob.construct(in_place<#{m.body_name}>()); break;"
}}
genl "break;"
}}
genl "id=newId;";
}}}
end
def generate
gen_max_size
gen_construct
end
end
MethodHolderGen.new(Outdir, Amqp).generate();
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