assigntokentypeswalker.java

ANTLR(ANother Tool for Language Recognition)它是这样的一种工具

			case EOR:
			{
				break;
			}
			default:
			{
				throw new NoViableAltException(_t);
			}
			}
			}
			GrammarAST tmp22_AST_in = (GrammarAST)_t;
			match(_t,EOR);
			_t = _t.getNextSibling();
			trackTokenRule(id,m,b);
			_t = __t40;
			_t = _t.getNextSibling();
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void modifier(AST _t) throws RecognitionException {
		
		GrammarAST modifier_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			if (_t==null) _t=ASTNULL;
			switch ( _t.getType()) {
			case LITERAL_protected:
			{
				GrammarAST tmp23_AST_in = (GrammarAST)_t;
				match(_t,LITERAL_protected);
				_t = _t.getNextSibling();
				break;
			}
			case LITERAL_public:
			{
				GrammarAST tmp24_AST_in = (GrammarAST)_t;
				match(_t,LITERAL_public);
				_t = _t.getNextSibling();
				break;
			}
			case LITERAL_private:
			{
				GrammarAST tmp25_AST_in = (GrammarAST)_t;
				match(_t,LITERAL_private);
				_t = _t.getNextSibling();
				break;
			}
			case FRAGMENT:
			{
				GrammarAST tmp26_AST_in = (GrammarAST)_t;
				match(_t,FRAGMENT);
				_t = _t.getNextSibling();
				break;
			}
			default:
			{
				throw new NoViableAltException(_t);
			}
			}
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void ruleScopeSpec(AST _t) throws RecognitionException {
		
		GrammarAST ruleScopeSpec_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			AST __t53 = _t;
			GrammarAST tmp27_AST_in = (GrammarAST)_t;
			match(_t,SCOPE);
			_t = _t.getFirstChild();
			{
			if (_t==null) _t=ASTNULL;
			switch ( _t.getType()) {
			case ACTION:
			{
				GrammarAST tmp28_AST_in = (GrammarAST)_t;
				match(_t,ACTION);
				_t = _t.getNextSibling();
				break;
			}
			case 3:
			case ID:
			{
				break;
			}
			default:
			{
				throw new NoViableAltException(_t);
			}
			}
			}
			{
			_loop56:
			do {
				if (_t==null) _t=ASTNULL;
				if ((_t.getType()==ID)) {
					GrammarAST tmp29_AST_in = (GrammarAST)_t;
					match(_t,ID);
					_t = _t.getNextSibling();
				}
				else {
					break _loop56;
				}
				
			} while (true);
			}
			_t = __t53;
			_t = _t.getNextSibling();
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void block(AST _t) throws RecognitionException {
		
		GrammarAST block_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			AST __t58 = _t;
			GrammarAST tmp30_AST_in = (GrammarAST)_t;
			match(_t,BLOCK);
			_t = _t.getFirstChild();
			{
			if (_t==null) _t=ASTNULL;
			switch ( _t.getType()) {
			case OPTIONS:
			{
				optionsSpec(_t);
				_t = _retTree;
				break;
			}
			case ALT:
			{
				break;
			}
			default:
			{
				throw new NoViableAltException(_t);
			}
			}
			}
			{
			int _cnt61=0;
			_loop61:
			do {
				if (_t==null) _t=ASTNULL;
				if ((_t.getType()==ALT)) {
					alternative(_t);
					_t = _retTree;
					rewrite(_t);
					_t = _retTree;
				}
				else {
					if ( _cnt61>=1 ) { break _loop61; } else {throw new NoViableAltException(_t);}
				}
				
				_cnt61++;
			} while (true);
			}
			GrammarAST tmp31_AST_in = (GrammarAST)_t;
			match(_t,EOB);
			_t = _t.getNextSibling();
			_t = __t58;
			_t = _t.getNextSibling();
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void exceptionGroup(AST _t) throws RecognitionException {
		
		GrammarAST exceptionGroup_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			{
			int _cnt68=0;
			_loop68:
			do {
				if (_t==null) _t=ASTNULL;
				if ((_t.getType()==LITERAL_exception)) {
					exceptionSpec(_t);
					_t = _retTree;
				}
				else {
					if ( _cnt68>=1 ) { break _loop68; } else {throw new NoViableAltException(_t);}
				}
				
				_cnt68++;
			} while (true);
			}
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void alternative(AST _t) throws RecognitionException {
		
		GrammarAST alternative_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			AST __t63 = _t;
			GrammarAST tmp32_AST_in = (GrammarAST)_t;
			match(_t,ALT);
			_t = _t.getFirstChild();
			{
			int _cnt65=0;
			_loop65:
			do {
				if (_t==null) _t=ASTNULL;
				if ((_t.getType()==BLOCK||_t.getType()==OPTIONAL||_t.getType()==CLOSURE||_t.getType()==POSITIVE_CLOSURE||_t.getType()==SYNPRED||_t.getType()==RANGE||_t.getType()==CHAR_RANGE||_t.getType()==EPSILON||_t.getType()==SET||_t.getType()==GATED_SEMPRED||_t.getType()==SYN_SEMPRED||_t.getType()==ACTION||_t.getType()==ASSIGN||_t.getType()==STRING_LITERAL||_t.getType()==CHAR_LITERAL||_t.getType()==TOKEN_REF||_t.getType()==PLUS_ASSIGN||_t.getType()==SEMPRED||_t.getType()==NOT||_t.getType()==TREE_BEGIN||_t.getType()==RULE_REF||_t.getType()==WILDCARD)) {
					element(_t);
					_t = _retTree;
				}
				else {
					if ( _cnt65>=1 ) { break _loop65; } else {throw new NoViableAltException(_t);}
				}
				
				_cnt65++;
			} while (true);
			}
			GrammarAST tmp33_AST_in = (GrammarAST)_t;
			match(_t,EOA);
			_t = _t.getNextSibling();
			_t = __t63;
			_t = _t.getNextSibling();
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void rewrite(AST _t) throws RecognitionException {
		
		GrammarAST rewrite_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			{
			_loop81:
			do {
				if (_t==null) _t=ASTNULL;
				if ((_t.getType()==REWRITE)) {
					AST __t78 = _t;
					GrammarAST tmp34_AST_in = (GrammarAST)_t;
					match(_t,REWRITE);
					_t = _t.getFirstChild();
					{
					if (_t==null) _t=ASTNULL;
					switch ( _t.getType()) {
					case SEMPRED:
					{
						GrammarAST tmp35_AST_in = (GrammarAST)_t;
						match(_t,SEMPRED);
						_t = _t.getNextSibling();
						break;
					}
					case ALT:
					case TEMPLATE:
					case ACTION:
					{
						break;
					}
					default:
					{
						throw new NoViableAltException(_t);
					}
					}
					}
					{
					if (_t==null) _t=ASTNULL;
					switch ( _t.getType()) {
					case ALT:
					{
						GrammarAST tmp36_AST_in = (GrammarAST)_t;
						match(_t,ALT);
						_t = _t.getNextSibling();
						break;
					}
					case TEMPLATE:
					{
						GrammarAST tmp37_AST_in = (GrammarAST)_t;
						match(_t,TEMPLATE);
						_t = _t.getNextSibling();
						break;
					}
					case ACTION:
					{
						GrammarAST tmp38_AST_in = (GrammarAST)_t;
						match(_t,ACTION);
						_t = _t.getNextSibling();
						break;
					}
					default:
					{
						throw new NoViableAltException(_t);
					}
					}
					}
					_t = __t78;
					_t = _t.getNextSibling();
				}
				else {
					break _loop81;
				}
				
			} while (true);
			}
		}
		catch (RecognitionException ex) {
			reportError(ex);
			if (_t!=null) {_t = _t.getNextSibling();}
		}
		_retTree = _t;
	}
	
	public final void element(AST _t) throws RecognitionException {
		
		GrammarAST element_AST_in = (_t == ASTNULL) ? null : (GrammarAST)_t;
		
		try {      // for error handling
			if (_t==null) _t=ASTNULL;
			switch ( _t.getType()) {
			case SET:
			case STRING_LITERAL:
			case CHAR_LITERAL:
			case TOKEN_REF:
			case RULE_REF:
			case WILDCARD:
			{
				atom(_t);
				_t = _retTree;
				break;
			}
			case NOT:
			{
				AST __t83 = _t;
				GrammarAST tmp39_AST_in = (GrammarAST)_t;
				match(_t,NOT);
				_t = _t.getFirstChild();
				atom(_t);
				_t = _retTree;
				_t = __t83;
				_t = _t.getNextSibling();
				break;
			}
			case RANGE:
			{
				AST __t84 = _t;
				GrammarAST tmp40_AST_in = (GrammarAST)_t;
				match(_t,RANGE);
				_t = _t.getFirstChild();
				atom(_t);
				_t = _retTree;
				atom(_t);
				_t = _retTree;
				_t = __t84;
				_t = _t.getNextSibling();
				break;
			}
			case CHAR_RANGE:
			{
				AST __t85 = _t;
				GrammarAST tmp41_AST_in = (GrammarAST)_t;
				match(_t,CHAR_RANGE);
				_t = _t.getFirstChild();
				atom(_t);
				_t = _retTree;
				atom(_t);
				_t = _retTree;
				_t = __t85;
				_t = _t.getNextSibling();
				break;
			}
			case ASSIGN:
			{
				AST __t86 = _t;
				GrammarAST tmp42_AST_in = (GrammarAST)_t;
				match(_t,ASSIGN);
				_t = _t.getFirstChild();
				GrammarAST tmp43_AST_in = (GrammarAST)_t;
				match(_t,ID);
				_t = _t.getNextSibling();
				{
				if (_t==null) _t=ASTNULL;
				switch ( _t.getType()) {
				case NOT:
				{
					AST __t88 = _t;
					GrammarAST tmp44_AST_in = (GrammarAST)_t;
					match(_t,NOT);
					_t = _t.getFirstChild();
					atom(_t);
					_t = _retTree;
					_t = __t88;
					_t = _t.getNextSibling();
					break;
				}
				case SET:
				case STRING_LITERAL:
				case CHAR_LITERAL:
				case TOKEN_REF:
				case RULE_REF:
				case WILDCARD:
				{
					atom(_t);
					_t = _retTree;
					break;
				}
				default:
				{
					throw new NoViableAltException(_t);
				}
				}
				}
				_t = __t86;
				_t = _t.getNextSibling();
				break;
			}
			case PLUS_ASSIGN:
			{
				AST __t89 = _t;
				GrammarAST tmp45_AST_in = (GrammarAST)_t;
				match(_t,PLUS_ASSIGN);
				_t = _t.getFirstChild();
				GrammarAST tmp46_AST_in = (GrammarAST)_t;
				match(_t,ID);
				_t = _t.getNextSibling();
				atom(_t);
				_t = _retTree;
				_t = __t89;
				_t = _t.getNextSibling();
				break;
			}
			case BLOCK:
			case OPTIONAL:
			case CLOSURE:
			case POSITIVE_CLOSURE:
			{
				ebnf(_t);
				_t = _retTree;
				break;
			}
			case TREE_BEGIN:
			{
				tree(_t);
				_t = _retTree;
				break;
			}
			case SYNPRED:
			{
				AST __t90 = _t;
				GrammarAST tmp47_AST_in = (GrammarAST)_t;
				match(_t,SYNPRED);
				_t = _t.getFirstChild();
				block(_t);
				_t = _retTree;
				_t = __t90;
				_t = _t.getNextSibling();
				break;
			}
			case ACTION:
			{
				GrammarAST tmp48_AST_in = (GrammarAST)_t;
				match(_t,ACTION);
				_t = _t.getNextSibling();
				break;
			}
			case SEMPRED:
			{
				GrammarAST tmp49_AST_in = (GrammarAST)_t;
				match(_t,SEMPRED);
				_t = _t.getNextSibling();
				break;
			}
			case SYN_SEMPRED:
			{
				GrammarAST tmp50_AST_in = (GrammarAST)_t;
				match(_t,SYN_SEMPRED);
				_t = _t.getNextSibling();
				break;
			}
			case GATED_SEMPRED:
			{
				GrammarAST tmp51_AST_in = (GrammarAST)_t;
				match(_t,GATED_SEMPRED);
				_t = _t.getNextSibling();
				break;
			}
			case EPSILON:
			{
				GrammarAST tmp52_AST_in = (GrammarAST)_t;
				match(_t,EPSILON);
				_t = _t.getNextSibling();
				break;
			}
			default:
			{
				throw new NoViableAltException(_t);
			}
			}
		}
		catch (RecognitionException ex) {