ruleparser.java

jboss规则引擎

        finally {
        }
        return ;
    }
    // $ANTLR end import_statement


    // $ANTLR start import_name
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:323:1: import_name returns [String name] : id= ID ( '.' id= ID )* (star= '.*' )? ;
    public String import_name() throws RecognitionException {   
        String name;
        Token id=null;
        Token star=null;


        		name = null;
        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:17: (id= ID ( '.' id= ID )* (star= '.*' )? )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:17: id= ID ( '.' id= ID )* (star= '.*' )?
            {
            id=(Token)input.LT(1);
            match(input,ID,FOLLOW_ID_in_import_name249); 
             name=id.getText(); 
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:46: ( '.' id= ID )*
            loop7:
            do {
                int alt7=2;
                int LA7_0 = input.LA(1);
                if ( LA7_0==18 ) {
                    alt7=1;
                }


                switch (alt7) {
            	case 1 :
            	    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:48: '.' id= ID
            	    {
            	    match(input,18,FOLLOW_18_in_import_name255); 
            	    id=(Token)input.LT(1);
            	    match(input,ID,FOLLOW_ID_in_import_name259); 
            	     name = name + "." + id.getText(); 

            	    }
            	    break;

            	default :
            	    break loop7;
                }
            } while (true);

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:99: (star= '.*' )?
            int alt8=2;
            int LA8_0 = input.LA(1);
            if ( LA8_0==19 ) {
                alt8=1;
            }
            else if ( LA8_0==-1||LA8_0==EOL||LA8_0==15||LA8_0==17||(LA8_0>=20 && LA8_0<=22)||LA8_0==28||LA8_0==30 ) {
                alt8=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("328:99: (star= \'.*\' )?", 8, 0, input);

                throw nvae;
            }
            switch (alt8) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:328:100: star= '.*'
                    {
                    star=(Token)input.LT(1);
                    match(input,19,FOLLOW_19_in_import_name269); 
                     name = name + star.getText(); 

                    }
                    break;

            }


            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return name;
    }
    // $ANTLR end import_name


    // $ANTLR start expander
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:330:1: expander : 'expander' (name= dotted_name )? ( ';' )? opt_eol ;
    public void expander() throws RecognitionException {   
        String name = null;



        		String config=null;
        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:17: ( 'expander' (name= dotted_name )? ( ';' )? opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:17: 'expander' (name= dotted_name )? ( ';' )? opt_eol
            {
            match(input,20,FOLLOW_20_in_expander289); 
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:28: (name= dotted_name )?
            int alt9=2;
            int LA9_0 = input.LA(1);
            if ( LA9_0==ID ) {
                alt9=1;
            }
            else if ( LA9_0==-1||LA9_0==EOL||LA9_0==15||LA9_0==17||(LA9_0>=20 && LA9_0<=22)||LA9_0==28||LA9_0==30 ) {
                alt9=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("334:28: (name= dotted_name )?", 9, 0, input);

                throw nvae;
            }
            switch (alt9) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:29: name= dotted_name
                    {
                    following.push(FOLLOW_dotted_name_in_expander294);
                    name=dotted_name();
                    following.pop();


                    }
                    break;

            }

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:48: ( ';' )?
            int alt10=2;
            int LA10_0 = input.LA(1);
            if ( LA10_0==15 ) {
                alt10=1;
            }
            else if ( LA10_0==-1||LA10_0==EOL||LA10_0==17||(LA10_0>=20 && LA10_0<=22)||LA10_0==28||LA10_0==30 ) {
                alt10=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("334:48: ( \';\' )?", 10, 0, input);

                throw nvae;
            }
            switch (alt10) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:334:48: ';'
                    {
                    match(input,15,FOLLOW_15_in_expander298); 

                    }
                    break;

            }

            following.push(FOLLOW_opt_eol_in_expander301);
            opt_eol();
            following.pop();


            			if (expanderResolver == null) 
            				throw new IllegalArgumentException("Unable to use expander. Make sure a expander or dsl config is being passed to the parser. [ExpanderResolver was not set].");
            			if ( expander != null )
            				throw new IllegalArgumentException( "Only one 'expander' statement per file is allowed" );
            			expander = expanderResolver.get( name, config );
            		

            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return ;
    }
    // $ANTLR end expander


    // $ANTLR start global
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:344:1: global : 'global' type= dotted_name id= ID ( ';' )? opt_eol ;
    public void global() throws RecognitionException {   
        Token id=null;
        String type = null;



        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:348:17: ( 'global' type= dotted_name id= ID ( ';' )? opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:348:17: 'global' type= dotted_name id= ID ( ';' )? opt_eol
            {
            match(input,21,FOLLOW_21_in_global325); 
            following.push(FOLLOW_dotted_name_in_global329);
            type=dotted_name();
            following.pop();

            id=(Token)input.LT(1);
            match(input,ID,FOLLOW_ID_in_global333); 
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:348:49: ( ';' )?
            int alt11=2;
            int LA11_0 = input.LA(1);
            if ( LA11_0==15 ) {
                alt11=1;
            }
            else if ( LA11_0==-1||LA11_0==EOL||LA11_0==17||(LA11_0>=20 && LA11_0<=22)||LA11_0==28||LA11_0==30 ) {
                alt11=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("348:49: ( \';\' )?", 11, 0, input);

                throw nvae;
            }
            switch (alt11) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:348:49: ';'
                    {
                    match(input,15,FOLLOW_15_in_global335); 

                    }
                    break;

            }

            following.push(FOLLOW_opt_eol_in_global338);
            opt_eol();
            following.pop();


            			packageDescr.addGlobal( id.getText(), type );
            		

            }

        }
        catch (RecognitionException re) {
            reportError(re);
            recover(input,re);
        }
        finally {
        }
        return ;
    }
    // $ANTLR end global


    // $ANTLR start function
    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:354:1: function : 'function' opt_eol (retType= dotted_name )? opt_eol name= ID opt_eol '(' opt_eol ( (paramType= dotted_name )? opt_eol paramName= argument opt_eol ( ',' opt_eol (paramType= dotted_name )? opt_eol paramName= argument opt_eol )* )? ')' opt_eol '{' body= curly_chunk '}' opt_eol ;
    public void function() throws RecognitionException {   
        Token name=null;
        String retType = null;

        String paramType = null;

        String paramName = null;

        String body = null;



        		FunctionDescr f = null;
        	
        try {
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:359:17: ( 'function' opt_eol (retType= dotted_name )? opt_eol name= ID opt_eol '(' opt_eol ( (paramType= dotted_name )? opt_eol paramName= argument opt_eol ( ',' opt_eol (paramType= dotted_name )? opt_eol paramName= argument opt_eol )* )? ')' opt_eol '{' body= curly_chunk '}' opt_eol )
            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:359:17: 'function' opt_eol (retType= dotted_name )? opt_eol name= ID opt_eol '(' opt_eol ( (paramType= dotted_name )? opt_eol paramName= argument opt_eol ( ',' opt_eol (paramType= dotted_name )? opt_eol paramName= argument opt_eol )* )? ')' opt_eol '{' body= curly_chunk '}' opt_eol
            {
            match(input,22,FOLLOW_22_in_function362); 
            following.push(FOLLOW_opt_eol_in_function364);
            opt_eol();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:359:36: (retType= dotted_name )?
            int alt12=2;
            alt12 = dfa12.predict(input); 
            switch (alt12) {
                case 1 :
                    // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:359:37: retType= dotted_name
                    {
                    following.push(FOLLOW_dotted_name_in_function369);
                    retType=dotted_name();
                    following.pop();


                    }
                    break;

            }

            following.push(FOLLOW_opt_eol_in_function373);
            opt_eol();
            following.pop();

            name=(Token)input.LT(1);
            match(input,ID,FOLLOW_ID_in_function377); 
            following.push(FOLLOW_opt_eol_in_function379);
            opt_eol();
            following.pop();


            			//System.err.println( "function :: " + name.getText() );
            			f = new FunctionDescr( name.getText(), retType );
            		
            match(input,23,FOLLOW_23_in_function388); 
            following.push(FOLLOW_opt_eol_in_function390);
            opt_eol();
            following.pop();

            // /home/michael/projects/jboss-rules-3.0.x/drools-compiler/src/main/resources/org/drools/lang/drl.g:365:25: ( (paramType= dotted_name )? opt_eol paramName= argument opt_eol ( ',' opt_eol (paramType= dotted_name )? opt_eol paramName= argument opt_eol )* )?
            int alt16=2;
            int LA16_0 = input.LA(1);
            if ( (LA16_0>=EOL && LA16_0<=ID)||LA16_0==15 ) {
                alt16=1;
            }
            else if ( LA16_0==25 ) {
                alt16=2;
            }
            else {
                NoViableAltException nvae =
                    new NoViableAltException("365:25: ( (paramType= dotted_name )? opt_eol paramName= argument opt_eol ( \',\' opt_eol (paramType= dotted_name )? opt_eol paramName= argument opt_eol )* )?", 16, 0, input);

                throw nvae;
            }
            switch (alt16) {