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"""Primitive set (and frozenset) ops."""

from mypyc.primitives.registry import function_op, method_op, binary_op, ERR_NEG_INT
from mypyc.ir.ops import ERR_MAGIC, ERR_FALSE
from mypyc.ir.rtypes import (
    object_rprimitive, bool_rprimitive, set_rprimitive, c_int_rprimitive, pointer_rprimitive,
    bit_rprimitive
)


# Construct an empty set.
new_set_op = function_op(
    name='builtins.set',
    arg_types=[],
    return_type=set_rprimitive,
    c_function_name='PySet_New',
    error_kind=ERR_MAGIC,
    extra_int_constants=[(0, pointer_rprimitive)])

# set(obj)
function_op(
    name='builtins.set',
    arg_types=[object_rprimitive],
    return_type=set_rprimitive,
    c_function_name='PySet_New',
    error_kind=ERR_MAGIC)

# frozenset(obj)
function_op(
    name='builtins.frozenset',
    arg_types=[object_rprimitive],
    return_type=object_rprimitive,
    c_function_name='PyFrozenSet_New',
    error_kind=ERR_MAGIC)

# item in set
binary_op(
    name='in',
    arg_types=[object_rprimitive, set_rprimitive],
    return_type=c_int_rprimitive,
    c_function_name='PySet_Contains',
    error_kind=ERR_NEG_INT,
    truncated_type=bool_rprimitive,
    ordering=[1, 0])

# set.remove(obj)
method_op(
    name='remove',
    arg_types=[set_rprimitive, object_rprimitive],
    return_type=bit_rprimitive,
    c_function_name='CPySet_Remove',
    error_kind=ERR_FALSE)

# set.discard(obj)
method_op(
    name='discard',
    arg_types=[set_rprimitive, object_rprimitive],
    return_type=c_int_rprimitive,
    c_function_name='PySet_Discard',
    error_kind=ERR_NEG_INT)

# set.add(obj)
set_add_op = method_op(
    name='add',
    arg_types=[set_rprimitive, object_rprimitive],
    return_type=c_int_rprimitive,
    c_function_name='PySet_Add',
    error_kind=ERR_NEG_INT)

# set.update(obj)
#
# This is not a public API but looks like it should be fine.
set_update_op = method_op(
    name='update',
    arg_types=[set_rprimitive, object_rprimitive],
    return_type=c_int_rprimitive,
    c_function_name='_PySet_Update',
    error_kind=ERR_NEG_INT)

# set.clear()
method_op(
    name='clear',
    arg_types=[set_rprimitive],
    return_type=c_int_rprimitive,
    c_function_name='PySet_Clear',
    error_kind=ERR_NEG_INT)

# set.pop()
method_op(
    name='pop',
    arg_types=[set_rprimitive],
    return_type=object_rprimitive,
    c_function_name='PySet_Pop',
    error_kind=ERR_MAGIC)

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