diff options
Diffstat (limited to 'sqlglot/helper.py')
| -rw-r--r-- | sqlglot/helper.py | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/sqlglot/helper.py b/sqlglot/helper.py index a863017..7335d1e 100644 --- a/sqlglot/helper.py +++ b/sqlglot/helper.py @@ -33,6 +33,15 @@ class AutoName(Enum): return name +class classproperty(property): + """ + Similar to a normal property but works for class methods + """ + + def __get__(self, obj: t.Any, owner: t.Any = None) -> t.Any: + return classmethod(self.fget).__get__(None, owner)() # type: ignore + + def seq_get(seq: t.Sequence[T], index: int) -> t.Optional[T]: """Returns the value in `seq` at position `index`, or `None` if `index` is out of bounds.""" try: @@ -137,9 +146,9 @@ def subclasses( def apply_index_offset( this: exp.Expression, - expressions: t.List[t.Optional[E]], + expressions: t.List[E], offset: int, -) -> t.List[t.Optional[E]]: +) -> t.List[E]: """ Applies an offset to a given integer literal expression. @@ -170,15 +179,14 @@ def apply_index_offset( ): return expressions - if expression: - if not expression.type: - annotate_types(expression) - if t.cast(exp.DataType, expression.type).this in exp.DataType.INTEGER_TYPES: - logger.warning("Applying array index offset (%s)", offset) - expression = simplify( - exp.Add(this=expression.copy(), expression=exp.Literal.number(offset)) - ) - return [expression] + if not expression.type: + annotate_types(expression) + if t.cast(exp.DataType, expression.type).this in exp.DataType.INTEGER_TYPES: + logger.warning("Applying array index offset (%s)", offset) + expression = simplify( + exp.Add(this=expression.copy(), expression=exp.Literal.number(offset)) + ) + return [expression] return expressions |