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2018 lines (1868 loc) · 50.1 KB
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/* Generated By:JavaCC: Do not edit this line. simplejava.java */
public class simplejava implements simplejavaConstants {
/*****************************************
* SimpleJava Language Grammar Starts Here
*****************************************/
static final public void program() throws ParseException {
trace_call("program");
try {
label_1:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case CLASS:
case BOOLEAN:
case VOID:
case IDENTIFIER:
;
break;
default:
jj_la1[0] = jj_gen;
break label_1;
}
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case CLASS:
ClassDefinitions();
break;
case BOOLEAN:
case VOID:
case IDENTIFIER:
FunctionDeclaration();
break;
default:
jj_la1[1] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
jj_consume_token(0);
} finally {
trace_return("program");
}
}
static final public void ClassDefinitions() throws ParseException {
trace_call("ClassDefinitions");
try {
jj_consume_token(CLASS);
jj_consume_token(IDENTIFIER);
jj_consume_token(LBRACE);
label_2:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case BOOLEAN:
case IDENTIFIER:
;
break;
default:
jj_la1[2] = jj_gen;
break label_2;
}
VariableDeclarationStatement();
}
jj_consume_token(RBRACE);
} finally {
trace_return("ClassDefinitions");
}
}
/*Two kinds of Function Declarations: FunctionProtoype or FunctionDefinition. */
static final public void FunctionDeclaration() throws ParseException {
trace_call("FunctionDeclaration");
try {
FunctionType();
jj_consume_token(IDENTIFIER);
FormalParameterList();
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case SEMICOLON:
jj_consume_token(SEMICOLON);
break;
case LBRACE:
jj_consume_token(LBRACE);
StatementList();
jj_consume_token(RBRACE);
break;
default:
jj_la1[3] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("FunctionDeclaration");
}
}
static final public void FunctionType() throws ParseException {
trace_call("FunctionType");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case VOID:
jj_consume_token(VOID);
break;
case BOOLEAN:
jj_consume_token(BOOLEAN);
break;
case IDENTIFIER:
jj_consume_token(IDENTIFIER);
break;
default:
jj_la1[4] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("FunctionType");
}
}
static final public void VariableType() throws ParseException {
trace_call("VariableType");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case BOOLEAN:
jj_consume_token(BOOLEAN);
break;
case IDENTIFIER:
jj_consume_token(IDENTIFIER);
break;
default:
jj_la1[5] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("VariableType");
}
}
// 5th Expression
static final public void NewExpression() throws ParseException {
trace_call("NewExpression");
try {
if (jj_2_1(3)) {
jj_consume_token(NEW);
VariableType();
jj_consume_token(LPAREN);
jj_consume_token(RPAREN);
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case NEW:
jj_consume_token(NEW);
VariableType();
jj_consume_token(LBRACKET);
Variable();
jj_consume_token(RBRACKET);
label_3:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LBRACKET:
;
break;
default:
jj_la1[6] = jj_gen;
break label_3;
}
jj_consume_token(LBRACKET);
jj_consume_token(RBRACKET);
}
break;
default:
jj_la1[7] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("NewExpression");
}
}
static final public void FormalParameterList() throws ParseException {
trace_call("FormalParameterList");
try {
jj_consume_token(LPAREN);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case BOOLEAN:
case IDENTIFIER:
FormalParameter();
label_4:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case COMMA:
;
break;
default:
jj_la1[8] = jj_gen;
break label_4;
}
jj_consume_token(COMMA);
FormalParameter();
}
break;
default:
jj_la1[9] = jj_gen;
;
}
jj_consume_token(RPAREN);
} finally {
trace_return("FormalParameterList");
}
}
static final public void FormalParameter() throws ParseException {
trace_call("FormalParameter");
try {
VariableType();
Variable();
label_5:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LBRACKET:
;
break;
default:
jj_la1[10] = jj_gen;
break label_5;
}
jj_consume_token(LBRACKET);
jj_consume_token(RBRACKET);
}
} finally {
trace_return("FormalParameter");
}
}
static final public void ExpressionList() throws ParseException {
trace_call("ExpressionList");
try {
Expression();
label_6:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case COMMA:
;
break;
default:
jj_la1[11] = jj_gen;
break label_6;
}
jj_consume_token(COMMA);
Expression();
}
} finally {
trace_return("ExpressionList");
}
}
/* four VariableTypes of expression. */
static final public void Expression() throws ParseException {
trace_call("Expression");
try {
if (jj_2_2(3)) {
FunctionCall();
} else if (jj_2_3(2)) {
CompleteOperatorExpression();
} else if (jj_2_4(2)) {
Variable();
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case TRUE:
case FALSE:
case INTEGER_LITERAL:
ConstantExpression();
break;
case NEW:
NewExpression();
break;
default:
jj_la1[12] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("Expression");
}
}
// First Expression.
static final public void ConstantExpression() throws ParseException {
trace_call("ConstantExpression");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER_LITERAL:
jj_consume_token(INTEGER_LITERAL);
break;
case TRUE:
jj_consume_token(TRUE);
break;
case FALSE:
jj_consume_token(FALSE);
break;
default:
jj_la1[13] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("ConstantExpression");
}
}
// Three kinds of variables.
static final public void Variable() throws ParseException {
trace_call("Variable");
try {
if (jj_2_5(2)) {
ArrayVariable();
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case IDENTIFIER:
PrimitiveVariableTypeOrClassVariable();
break;
default:
jj_la1[14] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("Variable");
}
}
//TODO: Make sure the variable in [] is integer value.
static final public void ArrayVariable() throws ParseException {
trace_call("ArrayVariable");
try {
jj_consume_token(IDENTIFIER);
jj_consume_token(LBRACKET);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case IDENTIFIER:
Variable();
break;
default:
jj_la1[15] = jj_gen;
;
}
jj_consume_token(RBRACKET);
} finally {
trace_return("ArrayVariable");
}
}
static final public void PrimitiveVariableTypeOrClassVariable() throws ParseException {
trace_call("PrimitiveVariableTypeOrClassVariable");
try {
if (jj_2_6(2)) {
jj_consume_token(IDENTIFIER);
label_7:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PERIOD:
;
break;
default:
jj_la1[16] = jj_gen;
break label_7;
}
jj_consume_token(PERIOD);
jj_consume_token(IDENTIFIER);
}
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case IDENTIFIER:
jj_consume_token(IDENTIFIER);
label_8:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PERIOD:
;
break;
default:
jj_la1[17] = jj_gen;
break label_8;
}
jj_consume_token(PERIOD);
ArrayVariable();
}
break;
default:
jj_la1[18] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("PrimitiveVariableTypeOrClassVariable");
}
}
// TODO check this classvariable
// void ClassVariable():
// {}
// {
// <IDENTIFIER>
// }
// Three built-in function: readfunction,printfunction and printlnfunction.
static final public void ReadFunctionCall() throws ParseException {
trace_call("ReadFunctionCall");
try {
jj_consume_token(READ);
jj_consume_token(LPAREN);
jj_consume_token(RPAREN);
} finally {
trace_return("ReadFunctionCall");
}
}
//TODO make sure print(int value)
static final public void PrintFunctionCall() throws ParseException {
trace_call("PrintFunctionCall");
try {
jj_consume_token(PRINT);
jj_consume_token(LPAREN);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case INTEGER_LITERAL:
jj_consume_token(INTEGER_LITERAL);
break;
case IDENTIFIER:
jj_consume_token(IDENTIFIER);
break;
default:
jj_la1[19] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
jj_consume_token(RPAREN);
} finally {
trace_return("PrintFunctionCall");
}
}
static final public void PrintlnFunctionCall() throws ParseException {
trace_call("PrintlnFunctionCall");
try {
jj_consume_token(PRINTLN);
jj_consume_token(LPAREN);
jj_consume_token(RPAREN);
} finally {
trace_return("PrintlnFunctionCall");
}
}
static final public void CustomizedFunctionCall() throws ParseException {
trace_call("CustomizedFunctionCall");
try {
jj_consume_token(IDENTIFIER);
jj_consume_token(LPAREN);
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case TRUE:
case FALSE:
case NEW:
case READ:
case PRINT:
case PRINTLN:
case INTEGER_LITERAL:
case IDENTIFIER:
case MINUS:
case LPAREN:
case NOT:
ExpressionList();
break;
default:
jj_la1[20] = jj_gen;
;
}
jj_consume_token(RPAREN);
} finally {
trace_return("CustomizedFunctionCall");
}
}
//Three built-in function and a customized function.
static final public void FunctionCall() throws ParseException {
trace_call("FunctionCall");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case READ:
ReadFunctionCall();
break;
case PRINT:
PrintFunctionCall();
break;
case PRINTLN:
PrintlnFunctionCall();
break;
case IDENTIFIER:
CustomizedFunctionCall();
break;
default:
jj_la1[21] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("FunctionCall");
}
}
//4th Expression
//The OperatorExpression
static final public void CompleteOperatorExpression() throws ParseException {
trace_call("CompleteOperatorExpression");
try {
AndExpression();
label_9:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case OR:
;
break;
default:
jj_la1[22] = jj_gen;
break label_9;
}
jj_consume_token(OR);
AndExpression();
}
} finally {
trace_return("CompleteOperatorExpression");
}
}
static final public void AndExpression() throws ParseException {
trace_call("AndExpression");
try {
NotExpression();
label_10:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case AND:
;
break;
default:
jj_la1[23] = jj_gen;
break label_10;
}
jj_consume_token(AND);
NotExpression();
}
} finally {
trace_return("AndExpression");
}
}
static final public void NotExpression() throws ParseException {
trace_call("NotExpression");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case NOT:
jj_consume_token(NOT);
break;
default:
jj_la1[24] = jj_gen;
;
}
CompareExpression();
} finally {
trace_return("NotExpression");
}
}
static final public void CompareExpression() throws ParseException {
trace_call("CompareExpression");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case TRUE:
jj_consume_token(TRUE);
break;
case FALSE:
jj_consume_token(FALSE);
break;
case READ:
case PRINT:
case PRINTLN:
case INTEGER_LITERAL:
case IDENTIFIER:
case MINUS:
case LPAREN:
MathExpression();
label_11:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case EQUALEQUAL:
case NOTEQUALTO:
case LESSTHAN:
case LESSTHANOREQUALTO:
case GREATERTHAN:
case GREATERTHANOREQUALTO:
;
break;
default:
jj_la1[25] = jj_gen;
break label_11;
}
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case EQUALEQUAL:
jj_consume_token(EQUALEQUAL);
break;
case NOTEQUALTO:
jj_consume_token(NOTEQUALTO);
break;
case LESSTHAN:
jj_consume_token(LESSTHAN);
break;
case LESSTHANOREQUALTO:
jj_consume_token(LESSTHANOREQUALTO);
break;
case GREATERTHAN:
jj_consume_token(GREATERTHAN);
break;
case GREATERTHANOREQUALTO:
jj_consume_token(GREATERTHANOREQUALTO);
break;
default:
jj_la1[26] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
MathExpression();
}
break;
default:
jj_la1[27] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("CompareExpression");
}
}
static final public void MathExpression() throws ParseException {
trace_call("MathExpression");
try {
term();
label_12:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
case MINUS:
;
break;
default:
jj_la1[28] = jj_gen;
break label_12;
}
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case PLUS:
jj_consume_token(PLUS);
break;
case MINUS:
jj_consume_token(MINUS);
break;
default:
jj_la1[29] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
term();
}
} finally {
trace_return("MathExpression");
}
}
static final public void term() throws ParseException {
trace_call("term");
try {
factor();
label_13:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case MULTIPLY:
case DIVIDE:
;
break;
default:
jj_la1[30] = jj_gen;
break label_13;
}
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case MULTIPLY:
jj_consume_token(MULTIPLY);
break;
case DIVIDE:
jj_consume_token(DIVIDE);
break;
default:
jj_la1[31] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
factor();
}
} finally {
trace_return("term");
}
}
static final public void factor() throws ParseException {
trace_call("factor");
try {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case MINUS:
jj_consume_token(MINUS);
factor();
break;
case INTEGER_LITERAL:
jj_consume_token(INTEGER_LITERAL);
break;
default:
jj_la1[32] = jj_gen;
if (jj_2_7(2)) {
Variable();
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case LPAREN:
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
break;
case READ:
case PRINT:
case PRINTLN:
case IDENTIFIER:
FunctionCall();
break;
default:
jj_la1[33] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
}
} finally {
trace_return("factor");
}
}
// zero or more statements.
static final public void StatementList() throws ParseException {
trace_call("StatementList");
try {
label_14:
while (true) {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case FOR:
case IF:
case WHILE:
case DO:
case BOOLEAN:
case RETURN:
case READ:
case PRINT:
case PRINTLN:
case IDENTIFIER:
case SEMICOLON:
case LBRACE:
;
break;
default:
jj_la1[34] = jj_gen;
break label_14;
}
Statement();
}
} finally {
trace_return("StatementList");
}
}
// 11 kinds of statement
static final public void Statement() throws ParseException {
trace_call("Statement");
try {
if (jj_2_8(3)) {
AssignmentStatement();
} else if (jj_2_9(3)) {
IncrementStatement();
} else if (jj_2_10(3)) {
VariableDeclarationStatement();
} else if (jj_2_11(3)) {
IfStatement();
} else if (jj_2_12(3)) {
DanglingIfElseStatement();
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case WHILE:
WhileStatement();
break;
case DO:
DoWhileStatement();
break;
case FOR:
ForStatement();
break;
case READ:
case PRINT:
case PRINTLN:
case IDENTIFIER:
FunctionCallStatement();
break;
case RETURN:
ReturnStatement();
break;
case SEMICOLON:
EmptyStatement();
break;
case LBRACE:
BlockStatement();
break;
default:
jj_la1[35] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("Statement");
}
}
static final public void AssignmentStatement() throws ParseException {
trace_call("AssignmentStatement");
try {
Variable();
jj_consume_token(GETS);
Expression();
jj_consume_token(SEMICOLON);
} finally {
trace_return("AssignmentStatement");
}
}
// TODO incrementstatement just like <variable>++ or <variable>--
static final public void IncrementStatement() throws ParseException {
trace_call("IncrementStatement");
try {
if (jj_2_13(3)) {
Variable();
jj_consume_token(PLUSPLUS);
} else if (jj_2_14(3)) {
Variable();
jj_consume_token(MINUS);
jj_consume_token(MINUS);
} else {
jj_consume_token(-1);
throw new ParseException();
}
} finally {
trace_return("IncrementStatement");
}
}
static final public void VariableDeclarationStatement() throws ParseException {
trace_call("VariableDeclarationStatement");
try {
VariableType();
Variable();
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case GETS:
jj_consume_token(GETS);
Expression();
break;
default:
jj_la1[36] = jj_gen;
;
}
jj_consume_token(SEMICOLON);
} finally {
trace_return("VariableDeclarationStatement");
}
}
static final public void IfStatement() throws ParseException {
trace_call("IfStatement");
try {
jj_consume_token(IF);
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
Statement();
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case ELSE:
jj_consume_token(ELSE);
Statement();
break;
default:
jj_la1[37] = jj_gen;
;
}
} finally {
trace_return("IfStatement");
}
}
static final public void DanglingIfElseStatement() throws ParseException {
trace_call("DanglingIfElseStatement");
try {
jj_consume_token(IF);
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
jj_consume_token(LBRACE);
jj_consume_token(LPAREN);
jj_consume_token(IF);
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
Statement();
jj_consume_token(ELSE);
Statement();
jj_consume_token(RBRACE);
} finally {
trace_return("DanglingIfElseStatement");
}
}
static final public void WhileStatement() throws ParseException {
trace_call("WhileStatement");
try {
jj_consume_token(WHILE);
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
Statement();
} finally {
trace_return("WhileStatement");
}
}
static final public void DoWhileStatement() throws ParseException {
trace_call("DoWhileStatement");
try {
jj_consume_token(DO);
Statement();
jj_consume_token(WHILE);
jj_consume_token(LPAREN);
Expression();
jj_consume_token(RPAREN);
jj_consume_token(SEMICOLON);
} finally {
trace_return("DoWhileStatement");
}
}
static final public void ForStatement() throws ParseException {
trace_call("ForStatement");
try {
jj_consume_token(FOR);
jj_consume_token(LPAREN);
ForInit();
Expression();
jj_consume_token(SEMICOLON);
IncrementStatement();
jj_consume_token(RPAREN);
Statement();
} finally {
trace_return("ForStatement");
}
}
// TODO check ForInit can taek incremnet statement.
static final public void ForInit() throws ParseException {
trace_call("ForInit");
try {
if (jj_2_15(3)) {
VariableType();
Variable();
} else {
switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
case IDENTIFIER:
AssignmentStatement();
break;
case SEMICOLON:
EmptyStatement();
break;
default:
jj_la1[38] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
}
} finally {
trace_return("ForInit");