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192 lines
5.4 KiB
Python
192 lines
5.4 KiB
Python
from __future__ import annotations
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import pdb
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import sys
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import os
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from textwrap import indent
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from functools import wraps
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from .agents import FSM, MetaFSM
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def wrapcmd(func):
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@wraps(func)
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def wrapper(self, arg: str, temporary=False):
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sys.settrace(self.trace_dispatch)
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known = globals()
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known.update(self.curframe.f_globals)
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known.update(self.curframe.f_locals)
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known['agent'] = known.get('self', None)
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known['model'] = known.get('self', {}).get('model')
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known['attrs'] = arg.strip().split()
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exec(func.__code__, known, known)
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return wrapper
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class Debug(pdb.Pdb):
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def __init__(self, *args, skip_soil=False, **kwargs):
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skip = kwargs.get('skip', [])
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skip.append('soil')
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if skip_soil:
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skip.append('soil')
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skip.append('soil.*')
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skip.append('mesa.*')
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super(Debug, self).__init__(*args, skip=skip, **kwargs)
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self.prompt = "[soil-pdb] "
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@staticmethod
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def _soil_agents(model, attrs=None, pretty=True, **kwargs):
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for agent in model.agents(**kwargs):
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d = agent
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print(' - ' + indent(agent.to_str(keys=attrs, pretty=pretty), ' '))
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@wrapcmd
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def do_soil_agents():
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return Debug._soil_agents(model, attrs=attrs or None)
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do_sa = do_soil_agents
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@wrapcmd
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def do_soil_list():
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return Debug._soil_agents(model, attrs=['state_id'], pretty=False)
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do_sl = do_soil_list
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def do_continue_state(self, arg):
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self.do_break_state(arg, temporary=True)
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return self.do_continue('')
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do_cs = do_continue_state
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@wrapcmd
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def do_soil_agent():
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if not agent:
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print('No agent available')
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return
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keys = None
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if attrs:
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keys = []
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for k in attrs:
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for key in agent.keys():
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if key.startswith(k):
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keys.append(key)
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print(agent.to_str(pretty=True, keys=keys))
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do_aa = do_soil_agent
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def do_break_state(self, arg: str, instances=None, temporary=False):
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'''
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Break before a specified state is stepped into.
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'''
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klass = None
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state = arg
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if not state:
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self.error("Specify at least a state name")
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return
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state, *tokens = state.lstrip().split()
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if tokens:
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instances = list(eval(token) for token in tokens)
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colon = state.find(':')
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if colon > 0:
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klass = state[:colon].rstrip()
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state = state[colon+1:].strip()
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print(klass, state, tokens)
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klass = eval(klass,
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self.curframe.f_globals,
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self.curframe_locals)
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if klass:
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klasses = [klass]
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else:
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klasses = [k for k in self.curframe.f_globals.values() if isinstance(k, type) and issubclass(k, FSM)]
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if not klasses:
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self.error('No agent classes found')
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for klass in klasses:
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try:
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func = getattr(klass, state)
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except AttributeError:
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self.error(f'State {state} not found in class {klass}')
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continue
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if hasattr(func, '__func__'):
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func = func.__func__
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code = func.__code__
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#use co_name to identify the bkpt (function names
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#could be aliased, but co_name is invariant)
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funcname = code.co_name
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lineno = code.co_firstlineno
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filename = code.co_filename
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# Check for reasonable breakpoint
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line = self.checkline(filename, lineno)
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if not line:
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raise ValueError('no line found')
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# now set the break point
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cond = None
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if instances:
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cond = f'self.unique_id in { repr(instances) }'
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existing = self.get_breaks(filename, line)
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if existing:
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self.message("Breakpoint already exists at %s:%d" %
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(filename, line))
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continue
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err = self.set_break(filename, line, temporary, cond, funcname)
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if err:
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self.error(err)
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else:
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bp = self.get_breaks(filename, line)[-1]
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self.message("Breakpoint %d at %s:%d" %
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(bp.number, bp.file, bp.line))
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do_bs = do_break_state
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def do_break_state_self(self, arg: str, temporary=False):
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'''
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Break before a specified state is stepped into, for the current agent
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'''
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agent = self.curframe.f_locals.get('self')
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if not agent:
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self.error('No current agent.')
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self.error('Try this again when the debugger is stopped inside an agent')
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return
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arg = f'{agent.__class__.__name__}:{ arg } {agent.unique_id}'
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return self.do_break_state(arg)
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do_bss = do_break_state_self
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debugger = None
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def set_trace(frame=None, **kwargs):
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global debugger
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if debugger is None:
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debugger = Debug(**kwargs)
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frame = frame or sys._getframe().f_back
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debugger.set_trace(frame)
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def post_mortem(traceback=None):
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global debugger
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if debugger is None:
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debugger = Debug(**kwargs)
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t = sys.exc_info()[2]
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debugger.reset()
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debugger.interaction(None, t)
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