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ops_tuple.py
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64 lines (50 loc) · 1.7 KB
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"""Primitive tuple ops.
These are for varying-length tuples represented as Python tuple objects
(RPrimitive, not RTuple).
"""
from typing import List
from mypyc.ops import (
EmitterInterface, tuple_rprimitive, int_rprimitive, list_rprimitive,
object_rprimitive, ERR_NEVER, ERR_MAGIC
)
from mypyc.ops_primitive import (
func_op, method_op, custom_op, call_emit, simple_emit,
)
tuple_get_item_op = method_op(
name='__getitem__',
arg_types=[tuple_rprimitive, int_rprimitive],
result_type=object_rprimitive,
error_kind=ERR_MAGIC,
emit=call_emit('CPySequenceTuple_GetItem'))
new_tuple_op = custom_op(
arg_types=[object_rprimitive],
result_type=tuple_rprimitive,
is_var_arg=True,
error_kind=ERR_MAGIC,
steals=False,
format_str='{dest} = ({comma_args}) :: tuple',
emit=simple_emit('{dest} = PyTuple_Pack({num_args}{pre_comma_args});'))
def emit_len(emitter: EmitterInterface, args: List[str], dest: str) -> None:
temp = emitter.temp_name()
emitter.emit_declaration('Py_ssize_t %s;' % temp)
emitter.emit_line('%s = PyTuple_GET_SIZE(%s);' % (temp, args[0]))
emitter.emit_line('%s = CPyTagged_ShortFromSsize_t(%s);' % (dest, temp))
tuple_len_op = func_op(
name='builtins.len',
arg_types=[tuple_rprimitive],
result_type=int_rprimitive,
error_kind=ERR_NEVER,
emit=emit_len)
list_tuple_op = func_op(
name='builtins.tuple',
arg_types=[list_rprimitive],
result_type=tuple_rprimitive,
error_kind=ERR_MAGIC,
emit=call_emit('PyList_AsTuple'),
priority=2)
func_op(
name='builtins.tuple',
arg_types=[object_rprimitive],
result_type=tuple_rprimitive,
error_kind=ERR_MAGIC,
emit=call_emit('PySequence_Tuple'))