def configure(cls, __name__=None, vm_configuration=None, **overrides):
if 'vms_by_range' in overrides:
raise ValueError("Cannot override vms_by_range")
if vm_configuration is not None:
overrides['vms_by_range'] = generate_vms_by_range(vm_configuration)
return super().configure(__name__, **overrides)
def configure(cls, name=None, vm_configuration=None, **overrides):
if 'vms_by_range' in overrides:
raise ValueError("Cannot override vms_by_range")
if vm_configuration is not None:
overrides['vms_by_range'] = generate_vms_by_range(vm_configuration)
return super().configure(name, **overrides)
def configure_forks(self,
homestead_start_block=None,
dao_start_block=None,
eip150_start_block=None,
spurious_dragon_block=None):
"""
TODO: add support for state_cleanup
"""
vm_configuration = _generate_vm_configuration(
homestead_start_block=homestead_start_block,
dao_start_block=dao_start_block,
eip150_start_block=eip150_start_block,
spurious_dragon_block=spurious_dragon_block,
)
self.vms_by_range = generate_vms_by_range(vm_configuration)
def configure_forks(self,
homestead_start_block=None,
dao_start_block=None,
tangerine_whistle_start_block=None,
spurious_dragon_block=None):
"""
TODO: add support for state_cleanup
"""
vm_configuration = _generate_vm_configuration(
homestead_start_block=homestead_start_block,
dao_start_block=dao_start_block,
tangerine_whistle_start_block=tangerine_whistle_start_block,
spurious_dragon_block=spurious_dragon_block,
)
self.vms_by_range = generate_vms_by_range(vm_configuration)
def configure(cls, name, vm_configuration, **overrides):
if 'vms_by_range' in overrides:
raise ValueError("Cannot override vms_by_range.")
for key in overrides:
if not hasattr(cls, key):
raise TypeError(
"The Chain.configure cannot set attributes that are not "
"already present on the base class. The attribute `{0}` was "
"not found on the base class `{1}`".format(key, cls)
)
# Organize the Chain classes by their starting blocks.
overrides['vms_by_range'] = generate_vms_by_range(vm_configuration)
return type(name, (cls,), overrides)
def configure_forks(self,
*fork_start_blocks: ForkStartBlocks,
dao_start_block: Union[int, bool] = None) -> None:
"""
On demand configuration of fork rules. This is a foot gun that if used
incorrectly could cause weird VM errors.
It should generally only be used on a genesis chain (head block == 0).
Modifying the fork rules, especially if the modification effects
existing blocks could result in a broken chain.
"""
vm_configuration = _generate_vm_configuration(
*fork_start_blocks,
dao_start_block=dao_start_block,
)
self.vms_by_range = generate_vms_by_range(vm_configuration)
