On Mon, 22 Jul 2024 07:24:08 GMT, Shaojin Wen <d...@openjdk.org> wrote:
>>> If code is generated through ClassFile, how to access the private methods >>> of classes such as String/StringConcatHelper? >> >> In that case, you have to encode those methods as live `MethodHandle` >> objects, passed to the generated class with `defineHiddenClassWithClassData` >> (just pass the class data object) >> They can be retrieved in generated code with a CONDY using >> `MethodHandles.classData`. (This is how the MethodHandle LambdaForm classes >> referred to other MethodHandles) >> >> ---- >> >> You don't really need to worry about experimenting with bytecode generation >> right now. This patch as is is very good, and tier 1-3 tests pass. Bytecode >> gen is aimed at more complex scenarios with multiple constants and various >> types of arguments instead of this simple concat case. > >> > If code is generated through ClassFile, how to access the private methods >> > of classes such as String/StringConcatHelper? >> >> In that case, you have to encode those methods as live `MethodHandle` >> objects, passed to the generated class with `defineHiddenClassWithClassData` >> (just pass the class data object) They can be retrieved in generated code >> with a CONDY using `MethodHandles.classData`. (This is how the MethodHandle >> LambdaForm classes referred to other MethodHandles) >> >> You don't really need to worry about experimenting with bytecode generation >> right now. This patch as is is very good, and tier 1-3 tests pass. Bytecode >> gen is aimed at more complex scenarios with multiple constants and various >> types of arguments instead of this simple concat case. > > @liach Can you give a sample code? @wenshao Answered at https://github.com/openjdk/jdk/pull/20273#issuecomment-2243101199 since this question is more closely related to that patch. ------------- PR Comment: https://git.openjdk.org/jdk/pull/20253#issuecomment-2243102417
