Class StatementFusion


  • public class StatementFusion
    extends java.lang.Object
    Tries to fuse all the statements in a block into a one statement by using COMMAs. Because COMMAs has the lowest precedence, we never need to insert extra () around. Once we have only one statement in a block, we can then eliminate a pair of {}'s. Further more, we can also fold a single statement IF into && or create further opportunities for all the other goodies in PeepholeSubstituteAlternateSyntax.
    • Constructor Summary

      Constructors 
      Constructor Description
      StatementFusion()  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      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 boolean isASTNormalized()
      Is the current AST normalized? (e.g.
      protected void report​(DiagnosticType diagnostic, Node n)
      Helper method for reporting an error to the compiler when applying a peephole optimization.
      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

      • StatementFusion

        public StatementFusion()
    • Method Detail

      • report

        protected void report​(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?)