Source code for waflib.Errors

# Thomas Nagy, 2010 (ita)

"""
Exceptions used in the Waf code
"""

import traceback, sys

class WafError(Exception):
	"""Base class for all Waf errors"""
[docs] def __init__(self, msg='', ex=None): """
[docs] :param msg: error message :type msg: string :param ex: exception causing this error (optional) :type ex: exception """ self.msg = msg assert not isinstance(msg, Exception) self.stack = [] if ex: if not msg: self.msg = str(ex) if isinstance(ex, WafError): self.stack = ex.stack else: self.stack = traceback.extract_tb(sys.exc_info()[2]) self.stack += traceback.extract_stack()[:-1] self.verbose_msg = ''.join(traceback.format_list(self.stack)) def __str__(self): return str(self.msg)
class BuildError(WafError): """
[docs] Errors raised during the build and install phases """ def __init__(self, error_tasks=[]): """
[docs] :param error_tasks: tasks that could not complete normally :type error_tasks: list of task objects """ self.tasks = error_tasks WafError.__init__(self, self.format_error()) def format_error(self): """format the error messages from the tasks that failed"""
[docs] lst = ['Build failed'] for tsk in self.tasks: txt = tsk.format_error() if txt: lst.append(txt) return '\n'.join(lst) class ConfigurationError(WafError): """
[docs] Configuration exception raised in particular by :py:meth:`waflib.Context.Context.fatal` """ pass class TaskRescan(WafError): """task-specific exception type, trigger a signature recomputation"""
[docs] pass class TaskNotReady(WafError): """task-specific exception type, raised when the task signature cannot be computed"""
[docs] pass