def p_range(p):
"""range : ID DOUBLE_DOT ID
| NUMCONST DOUBLE_DOT NUMCONST
| arithmetic_expressions DOUBLE_DOT arithmetic_expressions"""
if p.slice[1].type == "ID":
symbol_table.check_variable_declaration(p[1], p.slice[1])
code_array.check_variable_is_not_array(p[1], p.slice[1])
p[0] = {"from": p[1], "to": p[3]}
return
def p_statement_print(p):
"""statement : PRINT ID
| PRINT ID LBRACK expressions RBRACK"""
symbol_table.check_variable_declaration(p[2], p.slice[2])
if len(p) == 6:
var_copy = code_array.setup_array_variable(p[2], p[4], p.slice[2])
code_array.emit("print", None, var_copy, None)
else:
code_array.check_variable_is_not_array(p[2], p.slice[2])
code_array.emit("print", None, p[2], None)
return
def p_statement_assignment(p):
"""statement : ID ASSIGNMENT_SIGN expressions
| ID LBRACK expressions RBRACK ASSIGNMENT_SIGN expressions"""
symbol_table.check_variable_declaration(p[1], p.slice[1])
p[3] = code_array.store_boolean_expression_in_variable(p[3])
if len(p) == 4:
code_array.check_variable_is_not_array(p[1], p.slice[1])
code_array.emit("=", p[1], p[3], None)
else:
p[6] = code_array.store_boolean_expression_in_variable(p[6])
var_copy = code_array.setup_array_variable(p[1], p[3], p.slice[1])
code_array.emit("=", var_copy, p[6], None)
return
def p_statement_for(p):
"""statement : FOR ID ASSIGNMENT_SIGN counter DO qis_1 statement"""
symbol_table.check_variable_declaration(p[2], p.slice[2])
code_array.check_variable_is_not_array(p[2], p.slice[2])
code_array.emit(p[4]["opt"], p[2], p[2], {"value": 1, "type": "int"})
code_array.emit("goto", None, code_array.get_next_quad_index() + 2, None)
code_array.backpatch_e_list(p[6]["goto_quad_index"],
code_array.get_next_quad_index())
code_array.emit("=", p[2], p[4]["from"], None)
code_array.emit(">", None, p[2], p[4]["to"])
code_array.emit("goto", None, code_array.get_next_quad_index() + 2, None)
code_array.emit("goto", None, p[6]["quad_index"], None)
if p[7] and "exit_when_quad_index" in p[7]:
code_array.backpatch_e_list(p[7]["exit_when_quad_index"],
code_array.get_next_quad_index())
return
def p_expressions(p):
"""expressions : constant_expressions
| bool_expressions
| arithmetic_expressions
| ID
| ID LBRACK expressions RBRACK
| LPAR expressions RPAR"""
if p.slice[1].type == "ID":
symbol_table.check_variable_declaration(p[1], p.slice[1])
if len(p) == 5 and p.slice[3].type == "expressions":
p[0] = code_array.setup_array_variable(p[1], p[3], p.slice[1])
else:
code_array.check_variable_is_not_array(p[1], p.slice[1])
p[0] = p[1]
elif p.slice[1].type == "constant_expressions":
p[0] = p[1]
elif p.slice[1].type == "LPAR":
p[0] = p[2]
else:
p[0] = p[1]
return