Class: MessagePack::IDL::Lang::JavaGenerator::Context

Inherits:
Object
  • Object
show all
Includes:
Tenjin::ContextHelper
Defined in:
lib/msgpack/idl/lang/java.rb

Constant Summary collapse

PRIMITIVE_TYPEMAP = 
{
	'void'   => 'void',
	'byte'   => 'byte',
	'short'  => 'short',
	'int'    => 'int',
	'long'   => 'long',
	'ubyte'  => 'short',
	'ushort' => 'int',
	'uint'   => 'long',
	'ulong'  => 'BigInteger',
	'float'  => 'float',
	'double' => 'double',
	'bool'   => 'boolean',
	'raw'    => 'byte[]',
	'string' => 'String',
	'list'   => 'List',
	'map'    => 'Map',
}
NULLABLE_REMAP = 
{
	'byte'    => 'Byte',
	'short'   => 'Short',
	'int'     => 'Integer',
	'long'    => 'Long',
	'float'   => 'Float',
	'double'  => 'Double',
	'boolean' => 'Boolean',
}
TYPE_PARAMETER_REMAP = 
NULLABLE_REMAP.merge({
	:void     => 'Void',
})
IFACE_CLASS_REMAP = 
{
	'Map'     => 'HashMap',
	'List'    => 'ArrayList',
}
PRIMITIVE_DEFAULT = 
{
	'byte'    => '0',
	'short'   => '0',
	'int'     => '0',
	'long'    => '0',
	'float'   => '0.0f',
	'double'  => '0.0',
	'boolean' => 'false',
	'byte[]'  => 'new byte[0]',
	'String'  => '""',
}
PRIMITIVE_UNPACK = 
{
	'byte'   => 'unpackByte()',
	'short'  => 'unpackShort()',
	'int'    => 'unpackInt()',
	'long'   => 'unpackLong()',
	'ubyte'  => 'unpackShort()',
	'ushort' => 'unpackInt()',
	'uint'   => 'unpackLong()',
	'ulong'  => 'unpackBigInteger()',
	'float'  => 'unpackFloat()',
	'double' => 'unpackDouble()',
	'bool'   => 'unpackBoolean()',
	'raw'    => 'unpackByteArray()',
	'string' => 'unpackString()',
}
PRIMITIVE_CONVERT = 
{
	'byte'   => 'asByte()',
	'short'  => 'asShort()',
	'int'    => 'asInt()',
	'long'   => 'asLong()',
	'ubyte'  => 'asShort()',
	'ushort' => 'asInt()',
	'uint'   => 'asLong()',
	'ulong'  => 'asBigInteger()',
	'float'  => 'asFloat()',
	'double' => 'asDouble()',
	'bool'   => 'asBoolean()',
	'raw'    => 'asByteArray()',
	'string' => 'asString()',
}

Instance Method Summary collapse

Constructor Details

#initialize(gen, *member) ⇒ Context

Returns a new instance of Context.



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# File 'lib/msgpack/idl/lang/java.rb', line 189

def initialize(gen, *member)
	@gen = gen

	(class << self; self; end).module_eval {
		member.each {|m|
			define_method("#{m}") {
				instance_variable_get("@#{m}")
			}
			define_method("#{m}=") {|v|
				instance_variable_set("@#{m}", v)
			}
		}
	}
end

Instance Method Details

#format_convert(to, obj, t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 430

def format_convert(to, obj, t)
	if t.parameterized_type?
		if t.list_type?
			e = t.type_params[0]
			anon_id = next_anon_id
			ve = "e#{anon_id}"
			vo = "o#{anon_id}"
			return %[{
				#{to} = new #{format_type_impl(t)}();
				#{format_type(e)} #{ve};
				for(MessagePackObject #{vo} : #{obj}.asArray()) {
					#{format_convert("#{ve}", "#{vo}", e)}
					#{to}.add(#{ve});
				}
			}]
		elsif t.map_type?
			k = t.type_params[0]
			v = t.type_params[1]
			anon_id = next_anon_id
			vk = "k#{anon_id}"
			vv = "v#{anon_id}"
			vkv = "kv#{anon_id}"
			return %[{
				#{to} = new #{format_type_impl(t)}();
				#{format_type(k)} #{vk};
				#{format_type(v)} #{vv};
				for(Map.Entry<MessagePackObject,MessagePackObject> #{vkv} : #{obj}.asMap().entrySet()) {
					#{format_convert("#{vk}", "#{vkv}.getKey()", k)}
					#{format_convert("#{vv}", "#{vkv}.getValue()", v)}
					#{to}.put(#{vk}, #{vv});
				}
			}]
		end

	elsif t.is_a?(IR::Message)
		return %[#{to} = new #{t.name}();
			#{to}.messageConvert(#{obj});]

	elsif t.is_a?(IR::Enum)
		return "#{to} = #{t.name}.enumOf(#{obj}.asInt());"
	end

	method = PRIMITIVE_CONVERT[t.name] || "convert(new #{t.name}())"
	"#{to} = #{obj}.#{method};"
end

#format_initial_value(to, f) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 313

def format_initial_value(to, f)
	v = f.value
	case v
	when IR::NilValue
		"#{to} = null;"

	when IR::IntValue
		tt, name = format_nullable_type(f.type)
		if name == "BigInteger"
			"#{to} = BigInteger.valueOf(#{v.int}L);"
		elsif name == "long"
			"#{to} = #{v.int}L;"
		else
			"#{to} = #{v.int};"
		end

	when IR::BoolValue
		if v.bool
			"#{to} = true;"
		else
			"#{to} = false;"
		end

	when IR::EnumValue
		"#{to} = #{v.enum.name}.#{v.field.name};"
	when IR::EmptyValue
		tt, name = format_nullable_type(f.type)
		v = PRIMITIVE_DEFAULT[name]
		v ||= "new #{format_type_impl(f.type)}()"
		"#{to} = #{v};"
	else
		raise SemanticsError, "unknown initial value type: #{v.class}"
	end
end

#format_message(t, name = t.name) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 285

def format_message(t, name = t.name)
	@gen.format_message(t, name)
end

#format_message_class(s, version) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 481

def format_message_class(s, version)
	(namespace + ["#{s.name}_#{version}"]).join('.')
end

#format_nullable_type(t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 256

def format_nullable_type(t)
	if t.nullable_type?
		real_type = t.real_type
		name = PRIMITIVE_TYPEMAP[real_type.name] || real_type.name
		name = NULLABLE_REMAP[name] || name
		return real_type, name
	else
		name = PRIMITIVE_TYPEMAP[t.name] || t.name
		return t, name
	end
end

#format_package(*extra) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 204

def format_package(*extra)
	name = format_package_name(*extra)
	if name.empty?
		""
	else
		"package #{name};"
	end
end

#format_package_name(*extra) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 213

def format_package_name(*extra)
	package = namespace + extra
	package.join('.')
end

#format_parameterized_type(t, name) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 268

def format_parameterized_type(t, name)
	if t.parameterized_type?
		name + '<' +
			t.type_params.map {|tp|
				n = format_type(tp)
				TYPE_PARAMETER_REMAP[n] || n
			}.join(', ') + '>'
	else
		name
	end
end

#format_type(t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 280

def format_type(t)
	t, name = format_nullable_type(t)
	format_parameterized_type(t, name)
end

#format_type_impl(t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 295

def format_type_impl(t)
	t, name = format_nullable_type(t)
	name = IFACE_CLASS_REMAP[name] || name
	format_parameterized_type(t, name)
end

#format_type_parameter(t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 289

def format_type_parameter(t)
	t, name = format_nullable_type(t)
	name = TYPE_PARAMETER_REMAP[name] || name
	format_parameterized_type(t, name)
end

#format_unpack(to, pac, t) ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 364

def format_unpack(to, pac, t)
	if t.parameterized_type?
		if t.list_type?
			e = t.type_params[0]
			anon_id = next_anon_id
			vn = "n#{anon_id}"
			ve = "e#{anon_id}"
			vi = "i#{anon_id}"
			return %[{
				#{to} = new #{format_type_impl(t)}();
				int #{vn} = #{pac}.unpackArray();
				#{format_type(e)} #{ve};
				for(int #{vi}=0; #{vi} < #{vn}; #{vi}++) {
					#{format_unpack("#{ve}", pac, e)}
					#{to}.add(#{ve});
				}
			}]
		elsif t.map_type?
			anon_id = next_anon_id
			k = t.type_params[0]
			v = t.type_params[1]
			vn = "n#{anon_id}"
			vk = "k#{anon_id}"
			vv = "v#{anon_id}"
			vi = "i#{anon_id}"
			return %[{
				#{to} = new #{format_type_impl(t)}();
				int #{vn} = #{pac}.unpackMap();
				#{format_type(k)} #{vk};
				#{format_type(v)} #{vv};
				for(int #{vi}=0; #{vi} < #{vn}; #{vi}++) {
					#{format_unpack("#{vk}", pac, k)}
					#{format_unpack("#{vv}", pac, v)}
					#{to}.put(#{vk}, #{vv});
				}
			}]
		end

	elsif t.is_a?(IR::Message)
		return %[#{to} = new #{t.name}();
			#{to}.messageUnpack(#{pac});]

	elsif t.is_a?(IR::Enum)
		return "#{to} = #{t.name}.enumOf(#{pac}.unpackInt());"
	end

	method = PRIMITIVE_UNPACK[t.name] || "unpack(#{t.name}.class)"
	"#{to} = #{pac}.#{method};"
end

#next_anon_id ⇒ Object 



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# File 'lib/msgpack/idl/lang/java.rb', line 476

def next_anon_id
	@anon_id ||= -1
	@anon_id += 1
end