800 lines
21 KiB
Rust
800 lines
21 KiB
Rust
macro_rules! interm {
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($n: expr) => {
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ArithmeticTerm::Interm($n)
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};
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}
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/* A simple macro to count the arguments in a variadic list
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* of token trees.
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*/
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macro_rules! count_tt {
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() => { 0 };
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($odd:tt $($a:tt $b:tt)*) => { (count_tt!($($a)*) << 1) | 1 };
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($($a:tt $even:tt)*) => { count_tt!($($a)*) << 1 };
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}
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macro_rules! char_as_cell {
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($c: expr) => {
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HeapCellValue::build_with(HeapCellValueTag::Char, $c as u64)
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};
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}
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macro_rules! fixnum_as_cell {
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($n: expr) => {
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HeapCellValue::from_bytes($n.into_bytes()) //HeapCellValueTag::Fixnum, $n.get_num() as u64)
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};
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}
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macro_rules! cell_as_fixnum {
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($cell:expr) => {
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Fixnum::from_bytes($cell.into_bytes())
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};
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}
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macro_rules! integer_as_cell {
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($n: expr) => {{
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match $n {
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Number::Float(_) => unreachable!(),
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Number::Fixnum(n) => fixnum_as_cell!(n),
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Number::Rational(r) => typed_arena_ptr_as_cell!(r),
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Number::Integer(n) => typed_arena_ptr_as_cell!(n),
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}
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}};
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}
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macro_rules! empty_list_as_cell {
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() => {
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// the empty list atom has the fixed index of 8 (8 >> 3 == 1 in the condensed atom representation).
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atom_as_cell!(atom!("[]"))
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};
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}
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macro_rules! atom_as_cell {
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($atom:expr) => {
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HeapCellValue::from_bytes(
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AtomCell::build_with($atom.flat_index(), 0, HeapCellValueTag::Atom).into_bytes(),
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)
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};
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($atom:expr, $arity:expr) => {
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HeapCellValue::from_bytes(
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AtomCell::build_with($atom.flat_index(), $arity as u16, HeapCellValueTag::Atom)
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.into_bytes(),
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)
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};
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}
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macro_rules! cell_as_ossified_op_dir {
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($cell:expr) => {{
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let ptr_u64 = cell_as_untyped_arena_ptr!($cell);
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TypedArenaPtr::new(ptr_u64.payload_offset() as *mut OssifiedOpDir)
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}};
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}
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macro_rules! cell_as_string {
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($cell:expr) => {
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PartialString::from(cell_as_atom!($cell))
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};
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}
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macro_rules! cell_as_atom {
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($cell:expr) => {{
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let cell = AtomCell::from_bytes($cell.into_bytes());
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let name = cell.get_index() << 3;
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Atom::from(name as usize)
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}};
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}
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macro_rules! cell_as_atom_cell {
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($cell:expr) => {
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AtomCell::from_bytes($cell.into_bytes())
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};
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}
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macro_rules! cell_as_f64_ptr {
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($cell:expr) => {{
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let ptr_u64 = ConsPtr::from_bytes($cell.into_bytes());
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F64Ptr(TypedArenaPtr::new(
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ptr_u64.as_ptr() as *mut OrderedFloat<f64>
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))
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}};
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}
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macro_rules! cell_as_untyped_arena_ptr {
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($cell:expr) => {
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UntypedArenaPtr::from(u64::from($cell) as *const ArenaHeader)
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};
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}
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macro_rules! pstr_as_cell {
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($atom:expr) => {
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HeapCellValue::from_bytes(
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AtomCell::build_with($atom.flat_index(), 0, HeapCellValueTag::PStr).into_bytes(),
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)
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};
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}
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macro_rules! pstr_loc_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::PStrLoc, $h as u64)
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};
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}
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macro_rules! pstr_offset_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::PStrOffset, $h as u64)
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};
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}
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macro_rules! list_loc_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::Lis, $h as u64)
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};
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}
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macro_rules! str_loc_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::Str, $h as u64)
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};
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}
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macro_rules! stack_loc {
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(OrFrame, $b:expr, $idx:expr) => ({
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$b + prelude_size::<OrFrame>() + $idx * std::mem::size_of::<HeapCellValue>()
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});
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(AndFrame, $e:expr, $idx:expr) => ({
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$e + prelude_size::<AndFrame>() + ($idx - 1) * std::mem::size_of::<HeapCellValue>()
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});
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}
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macro_rules! stack_loc_as_cell {
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(OrFrame, $b:expr, $idx:expr) => {
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stack_loc_as_cell!(stack_loc!(OrFrame, $b, $idx))
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};
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(AndFrame, $b:expr, $idx:expr) => {
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stack_loc_as_cell!(stack_loc!(AndFrame, $b, $idx))
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};
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::StackVar, $h as u64)
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};
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}
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#[macro_export]
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macro_rules! heap_loc_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::Var, $h as u64)
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};
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}
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macro_rules! attr_var_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::AttrVar, $h as u64)
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};
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}
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#[allow(unused)]
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macro_rules! attr_var_loc_as_cell {
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($h:expr) => {
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HeapCellValue::build_with(HeapCellValueTag::AttrVar, $h as u64)
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};
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}
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macro_rules! typed_arena_ptr_as_cell {
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($ptr:expr) => {
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untyped_arena_ptr_as_cell!($ptr.header_ptr())
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};
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}
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macro_rules! untyped_arena_ptr_as_cell {
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($ptr:expr) => {
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HeapCellValue::from_bytes(unsafe { std::mem::transmute($ptr) })
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};
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}
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macro_rules! atom_as_cstr_cell {
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($atom:expr) => {{
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let offset = $atom.flat_index();
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HeapCellValue::from_bytes(
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AtomCell::build_with(offset as u64, 0, HeapCellValueTag::CStr).into_bytes(),
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)
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}};
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}
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macro_rules! string_as_cstr_cell {
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($ptr:expr) => {{
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let atom: Atom = $ptr.into();
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let offset = atom.flat_index();
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HeapCellValue::from_bytes(
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AtomCell::build_with(offset as u64, 0, HeapCellValueTag::CStr).into_bytes(),
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)
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}};
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}
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macro_rules! string_as_pstr_cell {
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($ptr:expr) => {{
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let atom: Atom = $ptr.into();
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let offset = atom.flat_index();
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HeapCellValue::from_bytes(
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AtomCell::build_with(offset as u64, 0, HeapCellValueTag::PStr).into_bytes(),
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)
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}};
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}
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macro_rules! stream_as_cell {
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($ptr:expr) => {
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untyped_arena_ptr_as_cell!($ptr.as_ptr())
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};
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}
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macro_rules! cell_as_stream {
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($cell:expr) => {{
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let ptr = cell_as_untyped_arena_ptr!($cell);
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Stream::from_tag(ptr.get_tag(), ptr.payload_offset())
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}};
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}
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macro_rules! cell_as_load_state_payload {
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($cell:expr) => { unsafe {
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let ptr = cell_as_untyped_arena_ptr!($cell);
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let ptr = std::mem::transmute::<_, *mut LiveLoadState>(ptr.payload_offset());
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TypedArenaPtr::new(ptr)
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}};
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}
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macro_rules! match_untyped_arena_ptr_pat_body {
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($ptr:ident, Integer, $n:ident, $code:expr) => {{
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let payload_ptr = unsafe { std::mem::transmute::<_, *mut Integer>($ptr.payload_offset()) };
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let $n = TypedArenaPtr::new(payload_ptr);
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#[allow(unused_braces)]
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$code
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}};
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($ptr:ident, F64, $n:ident, $code:expr) => {{
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let payload_ptr =
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unsafe { std::mem::transmute::<_, *mut OrderedFloat<f64>>($ptr.payload_offset()) };
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let $n = TypedArenaPtr::new(payload_ptr);
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#[allow(unused_braces)]
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$code
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}};
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($ptr:ident, Rational, $n:ident, $code:expr) => {{
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let payload_ptr = unsafe { std::mem::transmute::<_, *mut Rational>($ptr.payload_offset()) };
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let $n = TypedArenaPtr::new(payload_ptr);
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#[allow(unused_braces)]
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$code
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}};
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($cell:ident, OssifiedOpDir, $n:ident, $code:expr) => {{
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let $n = cell_as_ossified_op_dir!($cell);
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#[allow(unused_braces)]
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$code
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}};
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($cell:ident, LiveLoadState, $n:ident, $code:expr) => {{
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let $n = cell_as_load_state_payload!($cell);
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#[allow(unused_braces)]
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$code
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}};
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($ptr:ident, Stream, $s:ident, $code:expr) => {{
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let $s = Stream::from_tag($ptr.get_tag(), $ptr.payload_offset());
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#[allow(unused_braces)]
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$code
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}};
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($ptr:ident, TcpListener, $listener:ident, $code:expr) => {{
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let payload_ptr = unsafe { std::mem::transmute::<_, *mut TcpListener>($ptr.payload_offset()) };
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#[allow(unused_mut)]
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let mut $listener = TypedArenaPtr::new(payload_ptr);
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#[allow(unused_braces)]
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$code
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}};
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($ptr:ident, $($tags:tt)|+, $s:ident, $code:expr) => {{
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let $s = Stream::from_tag($ptr.get_tag(), $ptr.payload_offset());
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#[allow(unused_braces)]
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$code
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}};
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}
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macro_rules! match_untyped_arena_ptr_pat {
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(Stream) => {
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ArenaHeaderTag::InputFileStream
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| ArenaHeaderTag::OutputFileStream
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| ArenaHeaderTag::NamedTcpStream
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| ArenaHeaderTag::NamedTlsStream
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| ArenaHeaderTag::ReadlineStream
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| ArenaHeaderTag::StaticStringStream
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| ArenaHeaderTag::ByteStream
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| ArenaHeaderTag::StandardOutputStream
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| ArenaHeaderTag::StandardErrorStream
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};
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($tag:ident) => {
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ArenaHeaderTag::$tag
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};
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}
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macro_rules! match_untyped_arena_ptr {
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($ptr:expr, $( ($(ArenaHeaderTag::$tag:tt)|+, $n:ident) => $code:block $(,)?)+ $(_ => $misc_code:expr $(,)?)?) => ({
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let ptr_id = $ptr;
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match ptr_id.get_tag() {
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$($(match_untyped_arena_ptr_pat!($tag) => {
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match_untyped_arena_ptr_pat_body!(ptr_id, $tag, $n, $code)
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})+)+
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$(_ => $misc_code)?
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}
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});
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}
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macro_rules! read_heap_cell_pat_body {
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($cell:ident, Cons, $n:ident, $code:expr) => ({
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let $n = cell_as_untyped_arena_ptr!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, F64, $n:ident, $code:expr) => ({
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let $n = cell_as_f64_ptr!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, Atom, ($name:ident, $arity:ident), $code:expr) => ({
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let ($name, $arity) = cell_as_atom_cell!($cell).get_name_and_arity();
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, PStr, $atom:ident, $code:expr) => ({
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let $atom = cell_as_atom!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, CStr, $atom:ident, $code:expr) => ({
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let $atom = cell_as_atom!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, CStr | PStr, $atom:ident, $code:expr) => ({
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let $atom = cell_as_atom!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, PStr | CStr, $atom:ident, $code:expr) => ({
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let $atom = cell_as_atom!($cell);
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, Fixnum, $value:ident, $code:expr) => ({
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let $value = Fixnum::from_bytes($cell.into_bytes());
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, Char, $value:ident, $code:expr) => ({
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let $value = unsafe { char::from_u32_unchecked($cell.get_value() as u32) };
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#[allow(unused_braces)]
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$code
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});
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($cell:ident, $($tags:tt)|+, $value:ident, $code:expr) => ({
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let $value = $cell.get_value() as usize;
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#[allow(unused_braces)]
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$code
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});
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}
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macro_rules! read_heap_cell_pat {
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(($(HeapCellValueTag::$tag:tt)|+, $n:tt)) => {
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$(HeapCellValueTag::$tag)|+
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};
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(($(HeapCellValueTag::$tag:tt)|+)) => {
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$(HeapCellValueTag::$tag)|+
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};
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(_) => { _ };
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}
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macro_rules! read_heap_cell_pat_expander {
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($cell_id:ident, ($(HeapCellValueTag::$tag:tt)|+, $n:tt), $code:block) => ({
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read_heap_cell_pat_body!($cell_id, $($tag)|+, $n, $code)
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});
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($cell_id:ident, ($(HeapCellValueTag::$tag:tt)|+), $code:block) => ({
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$code
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});
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($cell_id:ident, _, $code:block) => ({
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$code
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});
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}
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macro_rules! read_heap_cell {
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($cell:expr, $($pat:tt $(if $guard_expr:expr)? => $code:block $(,)?)+) => ({
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let cell_id = $cell;
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match cell_id.get_tag() {
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$(read_heap_cell_pat!($pat) $(if $guard_expr)? => {
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read_heap_cell_pat_expander!(cell_id, $pat, $code)
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})+
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}
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});
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}
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macro_rules! functor {
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($name:expr, [$($dt:ident($($value:expr),*)),+], [$($aux:ident),*]) => ({
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{
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#[allow(unused_variables, unused_mut)]
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let mut addendum = Heap::new();
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let arity: usize = count_tt!($($dt) +);
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#[allow(unused_variables)]
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let aux_lens: [usize; count_tt!($($aux) *)] = [$($aux.len()),*];
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let mut result =
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vec![ atom_as_cell!($name, arity as u16),
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$(functor_term!( $dt($($value),*), arity, aux_lens, addendum ),)+ ];
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$(
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result.extend($aux.iter());
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)*
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result.extend(addendum.into_iter());
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result
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}
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});
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($name:expr, [$($dt:ident($($value:expr),*)),+]) => ({
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{
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let arity: usize = count_tt!($($dt) +);
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#[allow(unused_variables, unused_mut)]
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let mut addendum = Heap::new();
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let mut result =
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vec![ atom_as_cell!($name, arity as u16),
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$(functor_term!( $dt($($value),*), arity, [], addendum ),)+ ];
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result.extend(addendum.into_iter());
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result
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}
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});
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($name:expr) => ({
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vec![ atom_as_cell!($name) ]
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});
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}
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macro_rules! functor_term {
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(str(0), $arity:expr, $aux_lens:expr, $addendum:ident) => ({
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str_loc_as_cell!($arity + 1)
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});
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(str($e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => ({
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let len: usize = $aux_lens[0 .. $e].iter().sum();
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str_loc_as_cell!($arity + 1 + len)
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});
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(str($h:expr, 0), $arity:expr, $aux_lens:expr, $addendum:ident) => ({
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str_loc_as_cell!($arity + $h + 1)
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});
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(str($h:expr, $e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => ({
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let len: usize = $aux_lens[0 .. $e].iter().sum();
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str_loc_as_cell!($arity + $h + 1 + len)
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});
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(literal($e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
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HeapCellValue::from($e)
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);
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(integer($e:expr, $arena:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
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HeapCellValue::arena_from(Number::arena_from($e, $arena), $arena)
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);
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(fixnum($e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
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fixnum_as_cell!(Fixnum::build_with($e as i64))
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);
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(indexing_code_ptr($h:expr, $e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => ({
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let stub =
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match $e {
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IndexingCodePtr::DynamicExternal(o) => functor!(atom!("dynamic_external"), [fixnum(o)]),
|
|
IndexingCodePtr::External(o) => functor!(atom!("external"), [fixnum(o)]),
|
|
IndexingCodePtr::Internal(o) => functor!(atom!("internal"), [fixnum(o)]),
|
|
IndexingCodePtr::Fail => {
|
|
vec![atom_as_cell!(atom!("fail"))]
|
|
},
|
|
};
|
|
|
|
let len: usize = $aux_lens.iter().sum();
|
|
let h = len + $arity + 1 + $addendum.len() + $h;
|
|
|
|
$addendum.extend(stub.into_iter());
|
|
|
|
str_loc_as_cell!(h)
|
|
});
|
|
(number($arena:expr, $e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
|
|
HeapCellValue::from(($e, $arena))
|
|
);
|
|
(atom($e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
|
|
atom_as_cell!($e)
|
|
);
|
|
(string($h:expr, $e:expr), $arity:expr, $aux_lens:expr, $addendum: ident) => ({
|
|
let len: usize = $aux_lens.iter().sum();
|
|
let h = len + $arity + 1 + $addendum.len() + $h;
|
|
|
|
let cell = string_as_pstr_cell!($e);
|
|
|
|
$addendum.push(cell);
|
|
$addendum.push(empty_list_as_cell!());
|
|
|
|
heap_loc_as_cell!(h)
|
|
});
|
|
(boolean($e:expr), $arity:expr, $aux_lens:expr, $addendum: ident) => ({
|
|
if $e {
|
|
functor_term!(atom(atom!("true")), $arity, $aux_lens, $addendum)
|
|
} else {
|
|
functor_term!(atom(atom!("false")), $arity, $aux_lens, $addendum)
|
|
}
|
|
});
|
|
(cell($e:expr), $arity:expr, $aux_lens:expr, $addendum:ident) => (
|
|
$e
|
|
);
|
|
}
|
|
|
|
macro_rules! ar_reg {
|
|
($r: expr) => {
|
|
ArithmeticTerm::Reg($r)
|
|
};
|
|
}
|
|
|
|
macro_rules! unmark_cell_bits {
|
|
($e:expr) => {{
|
|
let mut result = $e;
|
|
|
|
result.set_mark_bit(false);
|
|
result.set_forwarding_bit(false);
|
|
|
|
result
|
|
}};
|
|
}
|
|
|
|
macro_rules! index_store {
|
|
($code_dir:expr, $op_dir:expr, $modules:expr) => {
|
|
IndexStore {
|
|
code_dir: $code_dir,
|
|
extensible_predicates: ExtensiblePredicates::new(),
|
|
local_extensible_predicates: LocalExtensiblePredicates::new(),
|
|
global_variables: GlobalVarDir::new(),
|
|
meta_predicates: MetaPredicateDir::new(),
|
|
modules: $modules,
|
|
op_dir: $op_dir,
|
|
streams: StreamDir::new(),
|
|
stream_aliases: StreamAliasDir::new(),
|
|
}
|
|
};
|
|
}
|
|
|
|
macro_rules! is_atom {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsAtom($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_atomic {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsAtomic($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_integer {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsInteger($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_compound {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsCompound($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_float {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsFloat($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_rational {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsRational($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_number {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsNumber($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_nonvar {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsNonVar($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_var {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::Inlined(InlinedClauseType::IsVar($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! call_clause {
|
|
($ct:expr, $arity:expr, $pvs:expr) => {
|
|
Line::Control(ControlInstruction::CallClause(
|
|
$ct, $arity, $pvs, false, false,
|
|
))
|
|
};
|
|
($ct:expr, $arity:expr, $pvs:expr, $lco:expr) => {
|
|
Line::Control(ControlInstruction::CallClause(
|
|
$ct, $arity, $pvs, $lco, false,
|
|
))
|
|
};
|
|
}
|
|
|
|
macro_rules! call_clause_by_default {
|
|
($ct:expr, $arity:expr, $pvs:expr) => {
|
|
Line::Control(ControlInstruction::CallClause(
|
|
$ct, $arity, $pvs, false, true,
|
|
))
|
|
};
|
|
($ct:expr, $arity:expr, $pvs:expr, $lco:expr) => {
|
|
Line::Control(ControlInstruction::CallClause(
|
|
$ct, $arity, $pvs, $lco, true,
|
|
))
|
|
};
|
|
}
|
|
|
|
macro_rules! proceed {
|
|
() => {
|
|
Line::Control(ControlInstruction::Proceed)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_call {
|
|
($r:expr, $at:expr) => {
|
|
call_clause!(ClauseType::BuiltIn(BuiltInClauseType::Is($r, $at)), 2, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! is_call_by_default {
|
|
($r:expr, $at:expr) => {
|
|
call_clause_by_default!(ClauseType::BuiltIn(BuiltInClauseType::Is($r, $at)), 2, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! set_cp {
|
|
($r:expr) => {
|
|
call_clause!(ClauseType::System(SystemClauseType::SetCutPoint($r)), 1, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! succeed {
|
|
() => {
|
|
call_clause!(ClauseType::System(SystemClauseType::Succeed), 0, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! fail {
|
|
() => {
|
|
call_clause!(ClauseType::System(SystemClauseType::Fail), 0, 0)
|
|
};
|
|
}
|
|
|
|
macro_rules! compare_number_instr {
|
|
($cmp: expr, $at_1: expr, $at_2: expr) => {{
|
|
let ct = ClauseType::Inlined(InlinedClauseType::CompareNumber($cmp, $at_1, $at_2));
|
|
call_clause!(ct, 2, 0)
|
|
}};
|
|
}
|
|
|
|
macro_rules! jmp_call {
|
|
($arity:expr, $offset:expr, $pvs:expr) => {
|
|
Line::Control(ControlInstruction::JmpBy($arity, $offset, $pvs, false))
|
|
};
|
|
}
|
|
|
|
macro_rules! return_from_clause {
|
|
($lco:expr, $machine_st:expr) => {{
|
|
if let CodePtr::VerifyAttrInterrupt(_) = $machine_st.p {
|
|
return Ok(());
|
|
}
|
|
|
|
if $lco {
|
|
$machine_st.p = CodePtr::Local($machine_st.cp);
|
|
} else {
|
|
$machine_st.p += 1;
|
|
}
|
|
|
|
Ok(())
|
|
}};
|
|
}
|
|
|
|
macro_rules! dir_entry {
|
|
($idx:expr) => {
|
|
LocalCodePtr::DirEntry($idx)
|
|
};
|
|
}
|
|
|
|
macro_rules! put_constant {
|
|
($lvl:expr, $cons:expr, $r:expr) => {
|
|
QueryInstruction::PutConstant($lvl, $cons, $r)
|
|
};
|
|
}
|
|
|
|
macro_rules! get_level_and_unify {
|
|
($r: expr) => {
|
|
Line::Cut(CutInstruction::GetLevelAndUnify($r))
|
|
};
|
|
}
|
|
|
|
/*
|
|
macro_rules! unwind_protect {
|
|
($e: expr, $protected: expr) => {
|
|
match $e {
|
|
Err(e) => {
|
|
$protected;
|
|
return Err(e);
|
|
}
|
|
_ => {}
|
|
}
|
|
};
|
|
}
|
|
*/
|
|
/*
|
|
macro_rules! discard_result {
|
|
($f: expr) => {
|
|
match $f {
|
|
_ => (),
|
|
}
|
|
};
|
|
}
|
|
*/
|
|
|
|
macro_rules! try_or_fail {
|
|
($s:expr, $e:expr) => {{
|
|
match $e {
|
|
Ok(val) => val,
|
|
Err(msg) => {
|
|
$s.throw_exception(msg);
|
|
return;
|
|
}
|
|
}
|
|
}};
|
|
}
|
|
|
|
macro_rules! try_or_fail_gen {
|
|
($s:expr, $e:expr) => {{
|
|
match $e {
|
|
Ok(val) => val,
|
|
Err(msg_fn) => {
|
|
let e = msg_fn($s);
|
|
$s.throw_exception(e);
|
|
return;
|
|
}
|
|
}
|
|
}};
|
|
}
|
|
|
|
macro_rules! unify {
|
|
($machine_st:expr, $($value:expr),*) => {{
|
|
$($machine_st.pdl.push($value);)*
|
|
$machine_st.unify()
|
|
}};
|
|
}
|
|
|
|
macro_rules! unify_fn {
|
|
($machine_st:expr, $($value:expr),*) => {{
|
|
$($machine_st.pdl.push($value);)*
|
|
($machine_st.unify_fn)(&mut $machine_st)
|
|
}};
|
|
}
|
|
|
|
macro_rules! unify_with_occurs_check {
|
|
($machine_st:expr, $($value:expr),*) => {{
|
|
$($machine_st.pdl.push($value);)*
|
|
$machine_st.unify_with_occurs_check()
|
|
}};
|
|
}
|
|
|
|
macro_rules! compare_term_test {
|
|
($machine_st:expr, $e1:expr, $e2:expr) => {{
|
|
$machine_st.pdl.push($e2);
|
|
$machine_st.pdl.push($e1);
|
|
|
|
$machine_st.compare_term_test()
|
|
}};
|
|
}
|