Package org.codehaus.groovy.classgen.asm

Class BinaryObjectExpressionHelper

java.lang.Object
org.codehaus.groovy.classgen.asm.BinaryExpressionWriter
org.codehaus.groovy.classgen.asm.BinaryObjectExpressionHelper
public class BinaryObjectExpressionHelper extends BinaryExpressionWriter
Binary expression helper used for object operations that fall back to dynamic dispatch.

  • Constructor Details

    • BinaryObjectExpressionHelper

      public BinaryObjectExpressionHelper(WriterController controller)
      Creates an object-specialized binary expression helper.
      Parameters:
      controller - the active writer controller

  • Method Details

    • writePostOrPrefixMethod

      public boolean writePostOrPrefixMethod(int operation, boolean simulate)
      Attempts to write a postfix or prefix increment/decrement operation.
      Overrides:
      writePostOrPrefixMethod in class BinaryExpressionWriter
      Parameters:
      operation - the token type
      simulate - whether to probe support without emitting bytecode
      Returns:
      true if the operation is supported

    • write

      public boolean write(int operation, boolean simulate)
      Attempts to write the supplied binary operation.
      Overrides:
      write in class BinaryExpressionWriter
      Parameters:
      operation - the token type
      simulate - whether to probe support without emitting bytecode
      Returns:
      true if the operation is supported

    • writeDivision

      protected boolean writeDivision(boolean simulate)
      Writes a division operation for the current primitive type.
      Overrides:
      writeDivision in class BinaryExpressionWriter
      Parameters:
      simulate - whether to probe support without emitting bytecode
      Returns:
      true if division is supported

    • getBitwiseOperationBytecode

      protected int getBitwiseOperationBytecode(int type)
      Returns the bitwise opcode for the supplied token.
      Specified by:
      getBitwiseOperationBytecode in class BinaryExpressionWriter
      Parameters:
      type - the normalized token index
      Returns:
      the ASM opcode

    • getCompareCode

      protected int getCompareCode()
      Specified by:
      getCompareCode in class BinaryExpressionWriter
      Returns:
      the ASM compare opcode used by this primitive type

    • getNormalOpResultType

      protected ClassNode getNormalOpResultType()
      Specified by:
      getNormalOpResultType in class BinaryExpressionWriter
      Returns:
      the result type for normal arithmetic operations

    • getDevisionOpResultType

      protected ClassNode getDevisionOpResultType()
      Specified by:
      getDevisionOpResultType in class BinaryExpressionWriter
      Returns:
      the result type for division operations

    • getShiftOperationBytecode

      protected int getShiftOperationBytecode(int type)
      Returns the shift opcode for the supplied token.
      Specified by:
      getShiftOperationBytecode in class BinaryExpressionWriter
      Parameters:
      type - the normalized token index
      Returns:
      the ASM opcode

    • getStandardOperationBytecode

      protected int getStandardOperationBytecode(int type)
      Returns the arithmetic opcode for the supplied token.
      Specified by:
      getStandardOperationBytecode in class BinaryExpressionWriter
      Parameters:
      type - the normalized token index
      Returns:
      the ASM opcode

    • removeTwoOperands

      protected void removeTwoOperands(org.objectweb.asm.MethodVisitor mv)
      Removes the two operands already on the operand stack.
      Specified by:
      removeTwoOperands in class BinaryExpressionWriter
      Parameters:
      mv - the current method visitor

    • writePlusPlus

      protected void writePlusPlus(org.objectweb.asm.MethodVisitor mv)
      Emits a prefix/postfix increment.
      Specified by:
      writePlusPlus in class BinaryExpressionWriter
      Parameters:
      mv - the current method visitor

    • writeMinusMinus

      protected void writeMinusMinus(org.objectweb.asm.MethodVisitor mv)
      Emits a prefix/postfix decrement.
      Specified by:
      writeMinusMinus in class BinaryExpressionWriter
      Parameters:
      mv - the current method visitor

    • doubleTwoOperands

      protected void doubleTwoOperands(org.objectweb.asm.MethodVisitor mv)
      Duplicates the two operands already on the operand stack.
      Specified by:
      doubleTwoOperands in class BinaryExpressionWriter
      Parameters:
      mv - the current method visitor

    • getArrayGetResultType

      protected ClassNode getArrayGetResultType()
      Overrides:
      getArrayGetResultType in class BinaryExpressionWriter
      Returns:
      the result type produced by BinaryExpressionWriter.getArrayGetCaller()