com.google.javascript.jscomp
Class PeepholeFoldConstants

java.lang.Object
  extended by com.google.javascript.jscomp.PeepholeFoldConstants

public class PeepholeFoldConstants
extends Object

Peephole optimization to fold constants (e.g. x + 1 + 7 --> x + 8).


Constructor Summary
PeepholeFoldConstants()
           
 
Method Summary
protected  boolean areNodesEqualForInlining(Node n1, Node n2)
          Are the nodes equal for the purpose of inlining? If type aware optimizations are on, type equality is checked.
protected  void error(DiagnosticType diagnostic, Node n)
          Helper method for reporting an error to the compiler when applying a peephole optimization.
protected  boolean isASTNormalized()
          Is the current AST normalized? (e.g.
protected  void reportCodeChange()
          Helper method for telling the compiler that something has changed.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PeepholeFoldConstants

public PeepholeFoldConstants()
Method Detail

error

protected void error(DiagnosticType diagnostic,
                     Node n)
Helper method for reporting an error to the compiler when applying a peephole optimization.

Parameters:
diagnostic - The error type
n - The node for which the error should be reported

reportCodeChange

protected void reportCodeChange()
Helper method for telling the compiler that something has changed. Subclasses must call these if they have changed the AST.


areNodesEqualForInlining

protected boolean areNodesEqualForInlining(Node n1,
                                           Node n2)
Are the nodes equal for the purpose of inlining? If type aware optimizations are on, type equality is checked.


isASTNormalized

protected boolean isASTNormalized()
Is the current AST normalized? (e.g. has the Normalize pass been run and has the Denormalize pass not yet been run?)