def compile_UnaryOperator(self, expr, type_ctx):
func = runtime.get_unary_op(expr.operator)
compiled_val = self.compile_expr(expr.expr, type_ctx)
try:
result_type = func.check_types(compiled_val.type)
except TypeError:
raise CompileError('Invalid type for operator {}: {}'.format(
expr.operator, [compiled_val.type]))
return typed_ast.FunctionCall(func, [compiled_val], result_type)
def compile_UnaryOperator(self, expr, type_ctx):
func = runtime.get_unary_op(expr.operator)
compiled_val = self.compile_expr(expr.expr, type_ctx)
try:
result_type = func.check_types(compiled_val.type)
except TypeError:
raise CompileError('Invalid type for operator {}: {}'.format(
expr.operator, [compiled_val.type]))
return typed_ast.FunctionCall(func, [compiled_val], result_type)
def test_unary_operator(self):
self.assert_compiled_select(
'SELECT -5',
typed_ast.Select(
[typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_unary_op('-'),
[typed_ast.Literal(5, tq_types.INT)],
tq_types.INT),
'f0_'
)],
typed_ast.NoTable(),
typed_ast.Literal(True, tq_types.BOOL),
None,
None,
self.make_type_context(
[(None, 'f0_', tq_types.INT)],
self.make_type_context([]))
)
)
def test_function_calls(self):
self.assert_compiled_select(
'SELECT ABS(-3), POW(2, 3), NOW()',
typed_ast.Select([
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('abs'),
[typed_ast.FunctionCall(
runtime.get_unary_op('-'),
[typed_ast.Literal(3, tq_types.INT)],
tq_types.INT
)],
tq_types.INT),
'f0_'),
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('pow'), [
typed_ast.Literal(2, tq_types.INT),
typed_ast.Literal(3, tq_types.INT)],
tq_types.INT
),
'f1_'
),
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('now'), [], tq_types.INT
),
'f2_'
)],
typed_ast.NoTable(),
typed_ast.Literal(True, tq_types.BOOL),
None,
typed_ast.Literal(True, tq_types.BOOL),
None,
None,
self.make_type_context([
(None, 'f0_', tq_types.INT), (None, 'f1_', tq_types.INT),
(None, 'f2_', tq_types.INT)],
self.make_type_context([]))
)
)
def test_function_calls(self):
self.assert_compiled_select(
'SELECT ABS(-3), POW(2, 3), NOW()',
typed_ast.Select([
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('abs'),
[typed_ast.FunctionCall(
runtime.get_unary_op('-'),
[typed_ast.Literal(3, tq_types.INT)],
tq_types.INT
)],
tq_types.INT),
'f0_', None),
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('pow'), [
typed_ast.Literal(2, tq_types.INT),
typed_ast.Literal(3, tq_types.INT)],
tq_types.INT
),
'f1_', None
),
typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_func('now'), [], tq_types.INT
),
'f2_', None
)],
typed_ast.NoTable(),
typed_ast.Literal(True, tq_types.BOOL),
None,
typed_ast.Literal(True, tq_types.BOOL),
None,
None,
self.make_type_context([
(None, 'f0_', tq_types.INT), (None, 'f1_', tq_types.INT),
(None, 'f2_', tq_types.INT)],
self.make_type_context([]))
)
)
def test_unary_operator(self):
self.assert_compiled_select(
'SELECT -5',
typed_ast.Select(
[typed_ast.SelectField(
typed_ast.FunctionCall(
runtime.get_unary_op('-'),
[typed_ast.Literal(5, tq_types.INT)],
tq_types.INT),
'f0_'
)],
typed_ast.NoTable(),
typed_ast.Literal(True, tq_types.BOOL),
None,
typed_ast.Literal(True, tq_types.BOOL),
None,
None,
self.make_type_context(
[(None, 'f0_', tq_types.INT)],
self.make_type_context([]))
)
)
def compile_UnaryOperator(self, expr, type_ctx):
func = runtime.get_unary_op(expr.operator)
compiled_val = self.compile_expr(expr.expr, type_ctx)
result_type = func.check_types(compiled_val.type)
return typed_ast.FunctionCall(func, [compiled_val], result_type)
def compile_UnaryOperator(self, expr, type_ctx):
func = runtime.get_unary_op(expr.operator)
compiled_val = self.compile_expr(expr.expr, type_ctx)
result_type = func.check_types(compiled_val.type)
return typed_ast.FunctionCall(func, [compiled_val], result_type)
