exprparser.java

实现的一个简单的语言编译器,可以编译类JAVA 的小语言

              PrefixExpression.Operator RESULT =null;
		
		RESULT = PrefixExpression.Operator.NOT;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("unary_operator",34, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 121: // unary_operator ::= MINUS 
            {
              PrefixExpression.Operator RESULT =null;
		
		RESULT = PrefixExpression.Operator.MINUS;		
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("unary_operator",34, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 120: // unary_operator ::= PLUS 
            {
              PrefixExpression.Operator RESULT =null;
		
		RESULT = PrefixExpression.Operator.PLUS;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("unary_operator",34, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 119: // assignment_operator ::= REMAINDER_EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.REMAINDER_ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 118: // assignment_operator ::= DIV_EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.DIVIDE_ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 117: // assignment_operator ::= MUL_EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.TIMES_ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 116: // assignment_operator ::= MINUS_EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.MINUS_ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 115: // assignment_operator ::= PLUS_EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.PLUS_ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 114: // assignment_operator ::= EQ 
            {
              Assignment.Operator RESULT =null;
		
		RESULT = Assignment.Operator.ASSIGN;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("assignment_operator",32, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 113: // primary ::= method_invocation 
            {
              Expression RESULT =null;
		int mileft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int miright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		MethodInvocation mi = (MethodInvocation)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		RESULT = mi;
		RESULT.setSourceRange(mileft,1);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 112: // primary ::= array_access 
            {
              Expression RESULT =null;
		int aleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int aright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		ArrayAccess a = (ArrayAccess)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		RESULT = a;
		RESULT.setSourceRange(aleft,1);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 111: // primary ::= unary_operator primary 
            {
              Expression RESULT =null;
		int upleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).left;
		int upright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).right;
		PrefixExpression.Operator up = (PrefixExpression.Operator)((java_cup.runtime.Symbol) CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).value;
		int pleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int pright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		Expression p = (Expression)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		PrefixExpression pe = ast.newPrefixExpression();
		pe.setOperator(up);
		pe.setOperand(p);
		RESULT = pe;
		RESULT.setSourceRange(pleft,1);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 110: // primary ::= LPAREN expression RPAREN 
            {
              Expression RESULT =null;
		int eleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).left;
		int eright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).right;
		Expression e = (Expression)((java_cup.runtime.Symbol) CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-1)).value;
		
		 
		RESULT = e;
		RESULT.setSourceRange(eleft,1);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-2)), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 109: // primary ::= STRING_LITERAL 
            {
              Expression RESULT =null;
		int sleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int sright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		String s = (String)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		RESULT =ast.newStringLiteral();
		((StringLiteral)RESULT).setLiteralValue(s);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 108: // primary ::= KFALSE 
            {
              Expression RESULT =null;
		
		RESULT = ast.newBooleanLiteral(new Boolean(false));
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 107: // primary ::= KTRUE 
            {
              Expression RESULT =null;
		
		RESULT = ast.newBooleanLiteral(new Boolean(true));
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 106: // primary ::= INTEGER_LITERAL 
            {
              Expression RESULT =null;
		int nleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int nright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		Integer n = (Integer)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		RESULT = ast.newNumberLiteral();
		((NumberLiteral)RESULT).setToken(n.toString());
		RESULT.setProperty("value",n);
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 105: // primary ::= name DOT LENGTH 
            {
              Expression RESULT =null;
		int idleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-2)).left;
		int idright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-2)).right;
		SimpleName id = (SimpleName)((java_cup.runtime.Symbol) CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-2)).value;
		
		RESULT = ast.newQualifiedName(id,ast.newSimpleName("length"));
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symbol)CUP$ExprParser$stack.elementAt(CUP$ExprParser$top-2)), ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()), RESULT);
            }
          return CUP$ExprParser$result;

          /*. . . . . . . . . . . . . . . . . . . .*/
          case 104: // primary ::= name 
            {
              Expression RESULT =null;
		int idleft = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).left;
		int idright = ((java_cup.runtime.Symbol)CUP$ExprParser$stack.peek()).right;
		SimpleName id = (SimpleName)((java_cup.runtime.Symbol) CUP$ExprParser$stack.peek()).value;
		
		RESULT = id;
	
              CUP$ExprParser$result = parser.getSymbolFactory().newSymbol("primary",23, ((java_cup.runtime.Symb