Package com.ibm.wala.cast.ir.translator

Class AstTranslator.PreBasicBlock

java.lang.Object
com.ibm.wala.cast.ir.translator.AstTranslator.PreBasicBlock
All Implemented Interfaces:
IBasicBlock<SSAInstruction>, INodeWithNumber, Iterable<SSAInstruction>
Enclosing class:
AstTranslator
protected static final class AstTranslator.PreBasicBlock extends Object implements IBasicBlock<SSAInstruction>
basic block implementation used in the CFGs constructed during the IR-generating AST traversal

  • Constructor Details

    • PreBasicBlock

      protected PreBasicBlock()

  • Method Details

    • getNumber

      public int getNumber()
      Description copied from interface: IBasicBlock
      Each basic block should have a unique number in its cfg
      Specified by:
      getNumber in interface IBasicBlock<SSAInstruction>
      Returns:
      the basic block's number

    • getGraphNodeId

      public int getGraphNodeId()
      Description copied from interface: INodeWithNumber
      A non-negative integer which serves as an identifier for this node in it's "dominant" graph. Initially this number is -1; a NumberedGraph will set it to a non-negative value when this node is inserted into the graph
      Specified by:
      getGraphNodeId in interface INodeWithNumber
      Returns:
      the identifier

    • setGraphNodeId

      public void setGraphNodeId(int number)
      Specified by:
      setGraphNodeId in interface INodeWithNumber

    • getFirstInstructionIndex

      public int getFirstInstructionIndex()
      Description copied from interface: IBasicBlock
      Get the index of the first instruction in the basic block. The value is an index into the instruction array that contains all the instructions for the method.

      If the result is < 0, the block has no instructions

      Specified by:
      getFirstInstructionIndex in interface IBasicBlock<SSAInstruction>
      Returns:
      the instruction index for the first instruction in the basic block.

    • getLastInstructionIndex

      public int getLastInstructionIndex()
      Description copied from interface: IBasicBlock
      Get the index of the last instruction in the basic block. The value is an index into the instruction array that contains all the instructions for the method.

      If the result is < 0, the block has no instructions

      Specified by:
      getLastInstructionIndex in interface IBasicBlock<SSAInstruction>
      Returns:
      the instruction index for the last instruction in the basic block

    • isEntryBlock

      public boolean isEntryBlock()
      Description copied from interface: IBasicBlock
      Return true if the basic block represents the unique entry block.
      Specified by:
      isEntryBlock in interface IBasicBlock<SSAInstruction>
      Returns:
      true if the basic block represents the unique entry block.

    • isExitBlock

      public boolean isExitBlock()
      Description copied from interface: IBasicBlock
      Return true if the basic block represents the unique exit block.
      Specified by:
      isExitBlock in interface IBasicBlock<SSAInstruction>
      Returns:
      true if the basic block represents the unique exit block.

    • isHandlerBlock

      public boolean isHandlerBlock()

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • isCatchBlock

      public boolean isCatchBlock()
      Description copied from interface: IBasicBlock
      Return true if the basic block represents a catch block.
      Specified by:
      isCatchBlock in interface IBasicBlock<SSAInstruction>
      Returns:
      true if the basic block represents a catch block.

    • getMethod

      public IMethod getMethod()
      Specified by:
      getMethod in interface IBasicBlock<SSAInstruction>
      Returns:
      governing method for this block

    • iterator

      public Iterator<SSAInstruction> iterator()
      Specified by:
      iterator in interface Iterable<SSAInstruction>