61f84d03ca
The syntax is
Try:
- Throw: ns:name #can be list of names to simulate type hierarchy
Message: message #optional
Cause: $sourceException #optional
Extra: { 'someExtra': 'data' } #optional
Catch:
- With: ns:name #can be list of names
- As: exception #optional
- Do:
- Rethrow:
Else: #optional
- else block
Finally: #optional
- finally block
Improves stack traces to contain information about Python native stack frames and macro blocks
Change-Id: I2e2bcc5e1a0da5f9489d73525f8b3fa99cc0220c
Implements: blueprint muranopl-exception-handling
100 lines
3.6 KiB
Python
100 lines
3.6 KiB
Python
# Copyright (c) 2014 Mirantis, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import inspect
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import os.path
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from murano.dsl import helpers
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from murano.dsl import murano_class
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from murano.dsl import murano_object
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from murano.dsl import yaql_expression
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@murano_class.classname('io.murano.StackTrace')
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class StackTrace(murano_object.MuranoObject):
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def initialize(self, _context, includeNativeFrames=True):
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frames = []
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context = _context
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while True:
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if not context:
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break
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instruction = helpers.get_current_instruction(context)
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frames.append({
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'instruction': None if instruction is None
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else str(instruction),
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'location': None if instruction is None
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else instruction.source_file_position,
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'method': helpers.get_current_method(context),
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'class': helpers.get_type(context)
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})
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context = helpers.get_caller_context(context)
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frames.pop()
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frames.reverse()
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if includeNativeFrames:
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class InstructionStub(object):
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def __init__(self, title, position):
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self._title = title
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self.source_file_position = position
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def __str__(self):
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return self._title
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native_frames = []
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for frame in inspect.trace()[1:]:
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info = inspect.getframeinfo(frame[0])
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position = yaql_expression.YaqlExpressionFilePosition(
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os.path.abspath(info.filename), info.lineno,
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-1, -1, -1, -1, -1)
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instruction = InstructionStub(
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info.code_context[0].strip(), position)
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method = info.function
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native_frames.append({
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'instruction': instruction,
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'method': method,
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'class': None
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})
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frames.extend(native_frames)
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self.set_property('frames', frames)
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def toString(self, prefix=''):
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def format_frame(frame):
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instruction = frame['instruction']
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method = frame['method']
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murano_class = frame['class']
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location = frame['location']
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if location:
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args = (
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os.path.abspath(location.file_path),
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location.start_line,
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':' + str(location.start_column)
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if location.start_column >= 0 else '',
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method,
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instruction,
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prefix,
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'' if not murano_class else murano_class.name + '::'
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)
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return '{5}File "{0}", line {1}{2} in method {6}{3}\n' \
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'{5} {4}'.format(*args)
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else:
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return '{2}File <unknown> in method {3}{0}\n{2} {1}'.format(
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method, instruction, prefix,
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'' if not murano_class else murano_class.name + '::')
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return '\n'.join([format_frame(t)for t in self.get_property('frames')])
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