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47332da901
* Always output the best syntax error format, and do away with compatible syntax errors. Instead make the comparison restricted to the message of error only. * This reduces tedious code and tried to mimic the various Python versions errors for no good reasons.
150 lines
4.0 KiB
Python
150 lines
4.0 KiB
Python
# Copyright 2017, Kay Hayen, mailto:kay.hayen@gmail.com
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#
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# Part of "Nuitka", an optimizing Python compiler that is compatible and
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# integrates with CPython, but also works on its own.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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""" Source code reference record.
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All the information to lookup line and file of a code location, together with
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the future flags in use there.
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"""
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from nuitka.nodes.FutureSpecs import FutureSpec
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from nuitka.utils.InstanceCounters import counted_del, counted_init
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class SourceCodeReference(object):
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# TODO: Measure the access speed impact of slots. The memory savings is
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# not worth it (only a few percent).
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__slots__ = ["filename", "line", "column", "future_spec", "internal"]
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@classmethod
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def fromFilenameAndLine(cls, filename, line, future_spec):
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result = cls()
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result.filename = filename
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result.line = line
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result.future_spec = future_spec
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return result
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__del__ = counted_del()
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@counted_init
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def __init__(self):
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self.filename = None
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self.line = None
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self.column = None
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self.future_spec = None
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self.internal = False
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def __repr__(self):
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return "<%s to %s:%s>" % (self.__class__.__name__, self.filename, self.line)
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def __cmp__(self, other):
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if other is None:
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return -1
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assert isinstance(other, SourceCodeReference), other
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result = cmp(self.filename, other.filename)
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if result == 0:
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result = cmp(self.line, other.line)
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if result == 0:
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result = cmp(self.internal, other.internal)
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return result
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def _clone(self, line):
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""" Make a copy it itself.
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"""
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result = SourceCodeReference.fromFilenameAndLine(
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filename = self.filename,
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line = line,
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future_spec = self.future_spec
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)
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result.internal = self.internal
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return result
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def atInternal(self):
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""" Make a copy it itself but mark as internal code.
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Avoids useless copies, by returning an internal object again if
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it is already internal.
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"""
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if not self.internal:
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result = self._clone(self.line)
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result.internal = True
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return result
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else:
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return self
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def atLineNumber(self, line):
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""" Make a reference to the same file, but different line.
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Avoids useless copies, by returning same object if the line is
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the same.
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"""
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assert type(line) is int, line
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if self.line != line:
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return self._clone(line)
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else:
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return self
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def atColumnNumber(self, column):
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assert type(column) is int, column
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if self.column != column:
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result = self._clone(self.line)
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result.column = column
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return result
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else:
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return self
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def getLineNumber(self):
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return self.line
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def getColumnNumber(self):
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return self.column
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def getFilename(self):
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return self.filename
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def getFutureSpec(self):
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return self.future_spec
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def getAsString(self):
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return "%s:%s" % (self.filename, self.line)
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def isInternal(self):
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return self.internal
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def fromFilename(filename):
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return SourceCodeReference.fromFilenameAndLine(
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filename = filename,
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line = 1,
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future_spec = FutureSpec(),
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)
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