org.antlr.codegen
Class JavaScriptTarget

java.lang.Object
  extended by org.antlr.codegen.Target
      extended by org.antlr.codegen.JavaScriptTarget

public class JavaScriptTarget
extends Target


Field Summary
 
Fields inherited from class org.antlr.codegen.Target
targetCharValueEscape
 
Constructor Summary
JavaScriptTarget()
           
 
Method Summary
 java.lang.String encodeIntAsCharEscape(int v)
          Convert an int to a JavaScript Unicode character literal.
 java.lang.String getTarget64BitStringFromValue(long word)
          Convert long to two 32-bit numbers separted by a comma.
 
Methods inherited from class org.antlr.codegen.Target
genRecognizerFile, genRecognizerHeaderFile, getMaxCharValue, getTargetCharLiteralFromANTLRCharLiteral, getTargetStringLiteralFromANTLRStringLiteral, getTargetStringLiteralFromString, getTargetStringLiteralFromString, getTokenTypeAsTargetLabel, isValidActionScope, performGrammarAnalysis, postProcessAction
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JavaScriptTarget

public JavaScriptTarget()
Method Detail

encodeIntAsCharEscape

public java.lang.String encodeIntAsCharEscape(int v)
Convert an int to a JavaScript Unicode character literal. The current JavaScript spec (ECMA-262) doesn't provide for octal notation in String literals, although some implementations support it. This method overrides the parent class so that characters will always be encoded as Unicode literals (e.g. ).

Overrides:
encodeIntAsCharEscape in class Target

getTarget64BitStringFromValue

public java.lang.String getTarget64BitStringFromValue(long word)
Convert long to two 32-bit numbers separted by a comma. JavaScript does not support 64-bit numbers, so we need to break the number into two 32-bit literals to give to the Bit. A number like 0xHHHHHHHHLLLLLLLL is broken into the following string: "0xLLLLLLLL, 0xHHHHHHHH" Note that the low order bits are first, followed by the high order bits. This is to match how the BitSet constructor works, where the bits are passed in in 32-bit chunks with low-order bits coming first. Note: stole the following two methods from the ActionScript target.

Overrides:
getTarget64BitStringFromValue in class Target


Copyright © 2013. All Rights Reserved.