Macro split_extract_plain_native_methods

macro_rules! split_extract_plain_native_methods {
    (
        {$($input:tt)*},
        $macro:path
        $(,$extra_args:tt)*
    ) => { ... };
    (
        {
            $(public)? static native $($first:tt)*
        },
        {
            $($second:tt)*
        },
        $macro:path
        $(,$extra_args:tt)*
    ) => { ... };
    (
        {
            $($ret:tt).+ $func_name:ident($($args:tt)*); $($rest:tt)*
        },
        {
            $({$prev_func_name:ident, {$($prev_ret:tt)*}, {$($prev_args:tt)*}})*
        },
        $macro:path
        $(,$extra_args:tt)*
    ) => { ... };
    (
        {
            $($ret:tt).+ [] $func_name:ident($($args:tt)*); $($rest:tt)*
        },
        {
            $({$prev_func_name:ident, {$($prev_ret:tt)*}, {$($prev_args:tt)*}})*
        },
        $macro:path
        $(,$extra_args:tt)*
    ) => { ... };
    (
        {},
        {
            $({$func_name:ident, {$($ret:tt)*}, {$($args:tt)*}})*
        },
        $macro:path
        $(,$extra_args:tt)*
    ) => { ... };
    ($($invalid:tt)*) => { ... };
}

Given the plain text of a list native methods, split the methods by semicolon (;), extract the return type, argument list and name of the methods and pass the result to the callback $macro with the extracted result as the first parameter. The result can be matched with pattern {$({$func_name:ident, {$($ret:tt)*}, {$($args:tt)*}})*}

macro_rules! call_split_extract_plain_native_methods {
    ({$({$func_name:ident, {$($ret:tt)*}, {$($args:tt)*}})*}) => {
        [$(
            (stringify! {$func_name}, stringify!{$($ret)*}, stringify!{($($args)*)})
        ),*]
    };
    ($($input:tt)*) => {{
        risingwave_jni_core::split_extract_plain_native_methods! {
            {$($input)*},
            call_split_extract_plain_native_methods
        }
    }}
}
assert_eq!([
    ("f", "int", "(int param1, boolean param2)"),
    ("f2", "boolean[]", "()"),
    ("f3", "java.lang.String", "(byte[] param)")
], call_split_extract_plain_native_methods!(
    int f(int param1, boolean param2);
    boolean[] f2();
    java.lang.String f3(byte[] param);
))