def p_datatype_operadores_unarios(t):
"""
datatype : O_RESTA datatype %prec UO_RESTA
| O_SUMA datatype %prec UO_SUMA
"""
t[0] = expression.UnaryArithmeticOperation(t[2], t[1], t[2].row, t[2].column)
repGrammar.append(t.slice)
def p_expComp_unario_3(t):
"""
expComp : datatype R_IS R_NOT R_NULL
| datatype R_IS R_NOT R_TRUE
| datatype R_IS R_NOT R_FALSE
| datatype R_IS R_NOT R_UNKNOWN
"""
t[0] = expression.UnaryArithmeticOperation(t[1], t[2] + t[3] + t[4],
t[1].row, t[1].column)