Source code for waflib.Errors

#!/usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2010-2018 (ita)

Exceptions used in the Waf code

import traceback, sys

[docs]class WafError(Exception): """Base class for all Waf errors"""
[docs] def __init__(self, msg='', ex=None): """ :param msg: error message :type msg: string :param ex: exception causing this error (optional) :type ex: exception """ Exception.__init__(self) 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)
[docs]class BuildError(WafError): """Error raised during the build and install phases"""
[docs] def __init__(self, error_tasks=[]): """ :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())
[docs] def format_error(self): """Formats the error messages from the tasks that failed""" lst = ['Build failed'] for tsk in self.tasks: txt = tsk.format_error() if txt: lst.append(txt) return '\n'.join(lst)
[docs]class ConfigurationError(WafError): """Configuration exception raised in particular by :py:meth:`waflib.Context.Context.fatal`""" pass
[docs]class TaskRescan(WafError): """Task-specific exception type signalling required signature recalculations""" pass
[docs]class TaskNotReady(WafError): """Task-specific exception type signalling that task signatures cannot be computed""" pass