def push_bytes(self, value: bytes) -> None:
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
validate_stack_bytes(value)
self._append((bytes, value))
def push_int(self, value: int) -> None:
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
validate_stack_int(value)
self._append((int, value))
def push_bytes(self, value: bytes) -> None:
"""
Push a bytes item onto the stack.
"""
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
validate_stack_bytes(value)
self._append((bytes, value))
def push_int(self, value: int) -> None:
"""
Push an integer item onto the stack.
"""
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
validate_stack_int(value)
self._append((int, value))
def push(self, value):
"""
Push an item onto the stack.
"""
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
validate_stack_item(value)
self.values.append(value)
def dup(self, position: int) -> None:
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
peek_index = -1 * position
try:
self._append(self.values[peek_index])
except IndexError:
raise InsufficientStack(
f"Insufficient stack items for DUP{position}")
def dup(self, position: int) -> None:
"""
Perform a DUP operation on the stack.
"""
if len(self.values) > 1023:
raise FullStack('Stack limit reached')
peek_index = -1 * position
try:
self._append(self.values[peek_index])
except IndexError:
raise InsufficientStack(
"Insufficient stack items for DUP{0}".format(position))
