refactor(datatypes): fully remove unused DataType.name

Author: NickCrews

ibis/backends/sql/compilers/impala.py

@@ -173,7 +173,7 @@ def visit_NonNullLiteral(self, op, *, value, dtype):
             )
         elif dtype.is_array() or dtype.is_map() or dtype.is_struct():
             raise com.UnsupportedBackendType(
-                f"Impala does not support {dtype.name.lower()} literals"
+                f"Impala does not support {dtype.__class__.__name__.lower()} literals"
             )
         elif dtype.is_uuid():
             return sge.convert(str(value))

ibis/backends/sql/datatypes.py

@@ -173,7 +173,7 @@ def to_ibis(cls, typ: sge.DataType, nullable: bool | None = None) -> dt.DataType
     def from_ibis(cls, dtype: dt.DataType) -> sge.DataType:
         """Convert an Ibis dtype to an sqlglot dtype."""
 
-        if method := getattr(cls, f"_from_ibis_{dtype.name}", None):
+        if method := getattr(cls, f"_from_ibis_{dtype.__class__.__name__}", None):
             return method(dtype)
         else:
             return sge.DataType(this=_to_sqlglot_types[type(dtype)])

ibis/expr/datatypes/core.py

@@ -189,12 +189,6 @@ def column(self): ...
     def _pretty_piece(self) -> str:
         return ""
 
-    # TODO(kszucs): should remove it, only used internally
-    @property
-    def name(self) -> str:
-        """Return the name of the data type."""
-        return self.__class__.__name__
-
     @classmethod
     def __coerce__(cls, value, **kwargs):
         if isinstance(value, cls):
@@ -209,7 +203,8 @@ def __call__(self, **kwargs):
 
     def __str__(self) -> str:
         prefix = "!" * (not self.nullable)
-        return f"{prefix}{self.name.lower()}{self._pretty_piece}"
+        name = self.__class__.__name__.lower()
+        return f"{prefix}{name}{self._pretty_piece}"
 
     def equals(self, other: DataType) -> bool:
         if not isinstance(other, DataType):
@@ -962,7 +957,8 @@ def __getitem__(self, key: str) -> DataType:
         return self.fields[key]
 
     def __repr__(self) -> str:
-        return f"'{self.name}({list(self.items())}, nullable={self.nullable})"
+        name = self.__class__.__name__
+        return f"'{name}({list(self.items())}, nullable={self.nullable})"
 
     @property
     def _pretty_piece(self) -> str: