def evaluate_OperatorCall(opcall: irast.OperatorCall,
schema: s_schema.Schema) -> irast.BaseConstant:
if irutils.is_union_expr(opcall):
return _evaluate_union(opcall, schema)
eval_func = op_table.get((opcall.operator_kind, opcall.func_shortname))
if eval_func is None:
raise UnsupportedExpressionError(
f'unsupported operator: {opcall.func_shortname}',
context=opcall.context)
args = []
for arg in opcall.args:
arg_val = evaluate_to_python_val(arg.expr, schema=schema)
if isinstance(arg_val, tuple):
raise UnsupportedExpressionError(
f'non-singleton operations are not supported',
context=opcall.context)
args.append(arg_val)
value = eval_func(*args)
qlconst = qlast.BaseConstant.from_python(value)
result = ql_compiler.compile_constant_tree_to_ir(qlconst,
styperef=opcall.typeref,
schema=schema)
return result
def evaluate_OperatorCall(opcall: irast.OperatorCall,
schema: s_schema.Schema) -> irast.ConstExpr:
if irutils.is_union_expr(opcall):
return _evaluate_union(opcall, schema)
eval_func = op_table.get((opcall.operator_kind, opcall.func_shortname))
if eval_func is None:
raise UnsupportedExpressionError(
f'unsupported operator: {opcall.func_shortname}',
context=opcall.context)
args = []
for arg in opcall.args:
arg_val = evaluate_to_python_val(arg.expr, schema=schema)
if isinstance(arg_val, tuple):
raise UnsupportedExpressionError(
f'non-singleton operations are not supported',
context=opcall.context)
args.append(arg_val)
value = eval_func(*args)
# Since we only perform string concatenations here, the constant
# in question is always a StringConstant.
qlconst = qlast.StringConstant.from_python(value)
result = qlcompiler.compile_constant_tree_to_ir(qlconst,
styperef=opcall.typeref,
schema=schema)
assert isinstance(result, irast.ConstExpr), 'expected ConstExpr'
return result