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from coalib.misc.Decorators import (enforce_signature, |
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generate_ordering, |
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generate_repr) |
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from coalib.results.TextPosition import TextPosition |
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@generate_repr("start", "end") |
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@generate_ordering("start", "end") |
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class TextRange: |
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@enforce_signature |
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def __init__(self, start: TextPosition, end: (TextPosition, None)=None): |
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""" |
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Creates a new TextRange. |
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:param start: A TextPosition indicating the start of the range. |
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Can't be `None`. |
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:param end: A TextPosition indicating the end of the range. If |
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`None` is given, the start object will be used |
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here. |
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:raises TypeError: Raised when |
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- start is no TextPosition or None. |
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- end is no TextPosition. |
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:raises ValueError: Raised when end position is smaller than start |
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position, because negative ranges are not allowed. |
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""" |
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self._start = start |
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self._end = end or start |
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if self._end < start: |
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raise ValueError("End position can't be less than start position.") |
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@classmethod |
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def from_values(cls, |
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start_line=None, |
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start_column=None, |
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end_line=None, |
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end_column=None): |
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""" |
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Creates a new TextRange. |
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:param start_line: The line number of the start position. The first |
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line is 1. |
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:param start_column: The column number of the start position. The first |
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column is 1. |
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:param end_line: The line number of the end position. If this |
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parameter is `None`, then the end position is set |
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the same like start position and end_column gets |
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ignored. |
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:param end_column: The column number of the end position. |
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:return: A TextRange. |
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""" |
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start = TextPosition(start_line, start_column) |
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if end_line is None: |
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end = None |
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else: |
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end = TextPosition(end_line, end_column) |
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return cls(start, end) |
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@property |
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def start(self): |
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return self._start |
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@property |
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def end(self): |
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return self._end |
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coala-analyzer /
coala
