org.antlr.tool
Class Message

java.lang.Object
  extended by org.antlr.tool.Message
Direct Known Subclasses:
GrammarAnalysisAbortedMessage, GrammarDanglingStateMessage, GrammarInsufficientPredicatesMessage, GrammarNonDeterminismMessage, GrammarSemanticsMessage, GrammarSyntaxMessage, GrammarUnreachableAltsMessage, LeftRecursionCyclesMessage, NonRegularDecisionMessage, RecursionOverflowMessage, ToolMessage

public abstract class Message
extends java.lang.Object

The ANTLR code calls methods on ErrorManager to report errors etc... Rather than simply pass these arguments to the ANTLRErrorListener directly, create an object that encapsulates everything. In this way, the error listener interface does not have to change when I add a new kind of error message. I don't want to break a GUI for example every time I update the error system in ANTLR itself. To get a printable error/warning message, call toString().


Field Summary
 java.lang.Object arg
           
 java.lang.Object arg2
           
 int column
           
 java.lang.Throwable e
           
 java.lang.String file
           
 int line
           
 org.antlr.stringtemplate.StringTemplate locationST
           
 org.antlr.stringtemplate.StringTemplate messageFormatST
           
 int msgID
           
 org.antlr.stringtemplate.StringTemplate msgST
           
 org.antlr.stringtemplate.StringTemplate reportST
           
 
Constructor Summary
Message()
           
Message(int msgID)
           
Message(int msgID, java.lang.Object arg, java.lang.Object arg2)
           
 
Method Summary
 org.antlr.stringtemplate.StringTemplate getLocationTemplate()
          Return a new template instance for the location part of a Message.
 org.antlr.stringtemplate.StringTemplate getMessageTemplate()
          Return a new template instance every time someone tries to print a Message.
 void setColumn(int column)
           
 void setLine(int line)
           
 void setMessageID(int msgID)
           
 java.lang.String toString(org.antlr.stringtemplate.StringTemplate messageST)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

msgST

public org.antlr.stringtemplate.StringTemplate msgST

locationST

public org.antlr.stringtemplate.StringTemplate locationST

reportST

public org.antlr.stringtemplate.StringTemplate reportST

messageFormatST

public org.antlr.stringtemplate.StringTemplate messageFormatST

msgID

public int msgID

arg

public java.lang.Object arg

arg2

public java.lang.Object arg2

e

public java.lang.Throwable e

file

public java.lang.String file

line

public int line

column

public int column
Constructor Detail

Message

public Message()

Message

public Message(int msgID)

Message

public Message(int msgID,
               java.lang.Object arg,
               java.lang.Object arg2)
Method Detail

setLine

public void setLine(int line)

setColumn

public void setColumn(int column)

setMessageID

public void setMessageID(int msgID)

getMessageTemplate

public org.antlr.stringtemplate.StringTemplate getMessageTemplate()
Return a new template instance every time someone tries to print a Message.


getLocationTemplate

public org.antlr.stringtemplate.StringTemplate getLocationTemplate()
Return a new template instance for the location part of a Message. TODO: Is this really necessary? -Kay


toString

public java.lang.String toString(org.antlr.stringtemplate.StringTemplate messageST)


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