def compile_do(self):
utils.write_in_file("<doStatement>\n", self.__output_path)
self.__tokenizer.log_token() # do
self.__make_subroutine_call()
self.__tokenizer.log_token() # ;
self.__tokenizer.advance(log=False)
utils.write_in_file("</doStatement>\n", self.__output_path)
def compile_statements(self):
utils.write_in_file("<statements>\n", self.__output_path)
while self.__tokenizer.token() in [
"do", "let", "while", "return", "if"
]:
self.__statement_functions[self.__tokenizer.token()]()
utils.write_in_file("</statements>\n", self.__output_path)
def compile_return(self):
utils.write_in_file("<returnStatement>\n", self.__output_path)
self.__tokenizer.log_token() # return
self.__tokenizer.advance(log=False) # expression/;
if self.__tokenizer.token() != ";":
self.compile_expression()
self.__tokenizer.log_token() # ;
self.__tokenizer.advance(log=False)
utils.write_in_file("</returnStatement>\n", self.__output_path)
def log_tokens(self) -> None:
output_path = utils.init_output_file(self.__input_path)
utils.write_in_file("<tokens>\n", output_path)
while self.__has_more_tokens():
self.__advance()
utils.write_in_file("<" + self.__token_type + "> ", output_path)
utils.write_in_file(self.__token, output_path)
utils.write_in_file(" </" + self.__token_type + ">\n", output_path)
utils.write_in_file("</tokens>", output_path)
def compile_expression_list(self):
utils.write_in_file("<expressionList>\n", self.__output_path)
while self.__tokenizer.token() != ")":
self.compile_expression()
if self.__tokenizer.token() == ",":
self.__tokenizer.log_token() # ,
self.__tokenizer.advance(log=False) # expression
utils.write_in_file("</expressionList>\n", self.__output_path)
def compile_expression(self):
utils.write_in_file("<expression>\n", self.__output_path)
self.compile_term()
while self.__tokenizer.token() in [
"+", "-", "*", "/", "&", "|", "<", ">", "="
]:
self.__tokenizer.log_token() # op
self.__tokenizer.advance(log=False) # term
self.compile_term()
utils.write_in_file("</expression>\n", self.__output_path)
def compile_class_var_dec(self):
utils.write_in_file("<classVarDec>\n", self.__output_path)
self.__tokenizer.log_token() # static/field
self.__tokenizer.advance() # type
self.__tokenizer.advance() # varName
self.__tokenizer.advance() # ,/;
while self.__tokenizer.token() == ",":
self.__tokenizer.advance() # varName
self.__tokenizer.advance() # ,/;
utils.write_in_file("</classVarDec>\n", self.__output_path)
def compile_parameter_list(self):
utils.write_in_file("<parameterList>\n", self.__output_path)
while self.__tokenizer.token() != ")":
self.__tokenizer.log_token() # type
self.__tokenizer.advance() # varName
self.__tokenizer.advance(log=False) # ,/)
if self.__tokenizer.token() == ",":
self.__tokenizer.log_token()
self.__tokenizer.advance(log=False)
utils.write_in_file("</parameterList>\n", self.__output_path)
def compile_subroutine_body(self):
utils.write_in_file("<subroutineBody>\n", self.__output_path)
self.__tokenizer.log_token() # {
self.__tokenizer.advance(log=False) # varDec/statements
while self.__tokenizer.token() == "var":
self.compile_var_dec()
self.__tokenizer.advance(log=False) # varDec/statements
self.compile_statements()
self.__tokenizer.log_token() # }
utils.write_in_file("</subroutineBody>\n", self.__output_path)
def compile_while(self):
utils.write_in_file("<whileStatement>\n", self.__output_path)
self.__tokenizer.log_token() # while
self.__tokenizer.advance() # (
self.__tokenizer.advance(log=False)
self.compile_expression()
self.__tokenizer.log_token() # )
self.__tokenizer.advance() # {
self.__tokenizer.advance(log=False)
self.compile_statements()
self.__tokenizer.log_token() # }
self.__tokenizer.advance(log=False)
utils.write_in_file("</whileStatement>\n", self.__output_path)
def compile_var_dec(self):
utils.write_in_file("<varDec>\n", self.__output_path)
self.__tokenizer.log_token() # var
self.__tokenizer.advance() # type
self.__tokenizer.advance() # varName
self.__tokenizer.advance() # ,/;
while self.__tokenizer.token() == ",":
self.__tokenizer.advance() # varName
self.__tokenizer.advance() # ,/;
utils.write_in_file("</varDec>\n", self.__output_path)
def compile_subroutine_dec(self):
utils.write_in_file("<subroutineDec>\n", self.__output_path)
self.__tokenizer.log_token() # constructor/func/method
self.__tokenizer.advance() # void/type
self.__tokenizer.advance() # subroutineName
self.__tokenizer.advance() # (
self.__tokenizer.advance(log=False) # parameterList / )
self.compile_parameter_list()
self.__tokenizer.log_token() # )
self.__tokenizer.advance(log=False) # subroutineBody
self.compile_subroutine_body()
utils.write_in_file("</subroutineDec>\n", self.__output_path)
def compile_let(self):
utils.write_in_file("<letStatement>\n", self.__output_path)
self.__tokenizer.log_token() # let
self.__tokenizer.advance() # varName
self.__tokenizer.advance() # [/=
if self.__tokenizer.token() == "[":
self.__tokenizer.advance(log=False)
self.compile_expression()
self.__tokenizer.log_token() # ]
self.__tokenizer.advance() # =
self.__tokenizer.advance(log=False) # expression
self.compile_expression()
self.__tokenizer.log_token() # ;
self.__tokenizer.advance(log=False)
utils.write_in_file("</letStatement>\n", self.__output_path)
def compile_class(self):
utils.write_in_file("<class>\n", self.__output_path)
self.__tokenizer.advance() # class
self.__tokenizer.advance() # className
self.__tokenizer.advance() # {
self.__tokenizer.advance(log=False) # classvardec/subroutinedec/}
while self.__tokenizer.token() in ["static", "field"]:
self.compile_class_var_dec()
self.__tokenizer.advance(log=False) # classvardec/subroutinedec/}
while self.__tokenizer.token() in [
"constructor", "function", "method"
]:
self.compile_subroutine_dec()
self.__tokenizer.advance(log=False) # subroutinedec/}
# assert self.__tokenizer.token() == "}"
self.__tokenizer.log_token()
utils.write_in_file("</class>\n", self.__output_path)
def compile_if(self):
utils.write_in_file("<ifStatement>\n", self.__output_path)
self.__tokenizer.log_token() # if
self.__tokenizer.advance() # (
self.__tokenizer.advance(log=False)
self.compile_expression()
self.__tokenizer.log_token() # )
self.__tokenizer.advance() # {
self.__tokenizer.advance(log=False)
self.compile_statements()
self.__tokenizer.log_token() # }
self.__tokenizer.advance(log=False) # else?
if self.__tokenizer.token() == "else":
self.__tokenizer.log_token()
self.__tokenizer.advance() # {
self.__tokenizer.advance(log=False)
self.compile_statements()
self.__tokenizer.log_token() # }
self.__tokenizer.advance(log=False)
utils.write_in_file("</ifStatement>\n", self.__output_path)
def compile_term(self):
utils.write_in_file("<term>\n", self.__output_path)
if self.__tokenizer.token() == "(":
self.__tokenizer.log_token() # (
self.__tokenizer.advance(log=False)
self.compile_expression()
self.__tokenizer.log_token() # )
self.__tokenizer.advance(log=False) # end
elif self.__tokenizer.token() == "-" or self.__tokenizer.token(
) == "~":
self.__tokenizer.log_token() # -/~
self.__tokenizer.advance(log=False) # term
self.compile_term()
elif self.__tokenizer.token_type() != "identifier":
self.__tokenizer.log_token(
) # integerConstant/stringConstant/keywordConstant
self.__tokenizer.advance(log=False) # end
else:
# we have either varName, or varName[expresion] or subroutineCall
self.__tokenizer.log_token() # varName, subroutineName, className
self.__tokenizer.advance(log=False) # end / [ / (
if self.__tokenizer.token() == "[":
self.__tokenizer.log_token() # [
self.__tokenizer.advance(log=False) # expression
self.compile_expression()
self.__tokenizer.log_token() # ]
self.__tokenizer.advance(log=False) # end
elif self.__tokenizer.token() == "(" or self.__tokenizer.token(
) == ".":
self.__tokenizer.log_token()
self.__make_subroutine_call(log_name=False)
self.__tokenizer.advance(log=False) # end
utils.write_in_file("</term>\n", self.__output_path)
def log_token(self):
utils.write_in_file("<" + self.__token_type + "> ", self.__output_path)
utils.write_in_file(self.__token, self.__output_path)
utils.write_in_file(" </" + self.__token_type + ">\n",
self.__output_path)
def write(self, text):
utils.write_in_file(text, self.__output_path)