Package mockit.asm.util

Class BytecodeReader

java.lang.Object
mockit.asm.util.BytecodeReader
Direct Known Subclasses:
AnnotatedReader, AnnotationReader
public class BytecodeReader extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    final byte[]
    code
    The class to be parsed.
    @org.checkerframework.checker.index.qual.NonNegative int
    codeIndex
    The next index at code to be read.
    final int[]
    items
    The start index of each constant pool item in code, plus one.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    BytecodeReader(byte[] code)
     
    protected
    BytecodeReader(BytecodeReader another)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected final boolean
    readBoolean(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)
     
    protected final char
    readChar(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)
     
    protected final String
    readClass()
    Reads the class name from the constant pool, incrementing codeIndex by 2.
    protected final Object
    readConst(@org.checkerframework.checker.index.qual.NonNegative int itemIndex)
    Reads a numeric or string constant pool item in code.
    final Object
    readConstItem()
    Reads the index of a constant item in code, incrementing codeIndex by 2.
    protected final Object
    readConstItem(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
     
    final double
    readDouble()
     
    protected final double
    readDouble(@org.checkerframework.checker.index.qual.NonNegative int s8CodeIndex)
     
    final float
    readFloat()
     
    protected final float
    readFloat(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)
     
    final int
    readInt()
    Reads a signed int value in code, incrementing codeIndex by 4.
    protected final int
    readInt(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)
    Reads a signed int value in code.
    final @org.checkerframework.checker.index.qual.NonNegative int
    readItem()
    Reads an item index in code, incrementing codeIndex by 2.
    final @org.checkerframework.checker.index.qual.NonNegative int
    readItem(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
     
    final long
    readLong()
    Reads a signed long value in code, incrementing codeIndex by 8.
    protected final long
    readLong(@org.checkerframework.checker.index.qual.NonNegative int s8CodeIndex)
    Reads a signed long value in code.
    final MethodHandle
    readMethodHandle()
     
    protected final MethodHandle
    readMethodHandleItem(@org.checkerframework.checker.index.qual.NonNegative int bsmCodeIndex)
     
    final String
    readNonnullClass()
    Reads a class descriptor in code, incrementing codeIndex by 2.
    final String
    readNonnullClass(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
     
    final String
    readNonnullUTF8()
    Reads the index of an UTF8 item in code, incrementing codeIndex by 2.
    final String
    readNonnullUTF8(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
    Reads the index of an UTF8 item in code.
    protected final short
    readShort()
    Reads a signed short value in code, incrementing codeIndex by 2.
    protected final short
    readShort(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
    Reads a signed short value in code.
    final int
    readSignedByte()
    Reads a signed byte value in code, incrementing codeIndex by 1.
    final String
    readString(@org.checkerframework.checker.index.qual.NonNegative int itemIndex)
    Reads a string in strings at the given index.
    final @org.checkerframework.checker.index.qual.NonNegative int
    readUnsignedByte()
    Reads an unsigned byte value in code, incrementing codeIndex by 1.
    protected final @org.checkerframework.checker.index.qual.NonNegative int
    readUnsignedByte(@org.checkerframework.checker.index.qual.NonNegative int u1CodeIndex)
    Reads an unsigned byte value in code.
    final @org.checkerframework.checker.index.qual.NonNegative int
    readUnsignedShort()
    Reads an unsigned short value in code, incrementing codeIndex by 2.
    protected final @org.checkerframework.checker.index.qual.NonNegative int
    readUnsignedShort(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
    Reads an unsigned short value in code.
    protected final String
    readUTF8()
    Reads an UTF8 string constant pool item in code, incrementing codeIndex by 2.
    protected final String
    readUTF8(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
    Reads an UTF8 string constant pool item in code.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • code

      @NonNull public final byte[] code
      The class to be parsed. The content of this array must not be modified.

    • items

      @NonNull public final int[] items
      The start index of each constant pool item in code, plus one. The one byte offset skips the constant pool item tag that indicates its type.

    • codeIndex

      public @org.checkerframework.checker.index.qual.NonNegative int codeIndex
      The next index at code to be read.

  • Constructor Details

    • BytecodeReader

      protected BytecodeReader(@NonNull byte[] code)

    • BytecodeReader

      protected BytecodeReader(@NonNull BytecodeReader another)

  • Method Details

    • readUnsignedByte

      public final @org.checkerframework.checker.index.qual.NonNegative int readUnsignedByte()
      Reads an unsigned byte value in code, incrementing codeIndex by 1.
      Returns:
      the int

    • readUnsignedByte

      protected final @org.checkerframework.checker.index.qual.NonNegative int readUnsignedByte(@org.checkerframework.checker.index.qual.NonNegative int u1CodeIndex)
      Reads an unsigned byte value in code.
      Parameters:
      u1CodeIndex - the start index of the value to be read in code
      Returns:
      the int

    • readSignedByte

      public final int readSignedByte()
      Reads a signed byte value in code, incrementing codeIndex by 1.
      Returns:
      the int

    • readChar

      protected final char readChar(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)

    • readBoolean

      protected final boolean readBoolean(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)

    • readUnsignedShort

      public final @org.checkerframework.checker.index.qual.NonNegative int readUnsignedShort()
      Reads an unsigned short value in code, incrementing codeIndex by 2.
      Returns:
      the int

    • readUnsignedShort

      protected final @org.checkerframework.checker.index.qual.NonNegative int readUnsignedShort(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
      Reads an unsigned short value in code.
      Parameters:
      u2CodeIndex - the start index of the value to be read in code
      Returns:
      the int

    • readShort

      protected final short readShort()
      Reads a signed short value in code, incrementing codeIndex by 2.
      Returns:
      the short

    • readShort

      protected final short readShort(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
      Reads a signed short value in code.
      Parameters:
      u2CodeIndex - the start index of the value to be read in code
      Returns:
      the short

    • readInt

      public final int readInt()
      Reads a signed int value in code, incrementing codeIndex by 4.
      Returns:
      the int

    • readInt

      protected final int readInt(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)
      Reads a signed int value in code.
      Parameters:
      s4CodeIndex - the start index of the value to be read in code
      Returns:
      the int

    • readLong

      public final long readLong()
      Reads a signed long value in code, incrementing codeIndex by 8.
      Returns:
      the long

    • readLong

      protected final long readLong(@org.checkerframework.checker.index.qual.NonNegative int s8CodeIndex)
      Reads a signed long value in code.
      Parameters:
      s8CodeIndex - the start index of the value to be read in code
      Returns:
      the long

    • readDouble

      public final double readDouble()

    • readDouble

      protected final double readDouble(@org.checkerframework.checker.index.qual.NonNegative int s8CodeIndex)

    • readFloat

      public final float readFloat()

    • readFloat

      protected final float readFloat(@org.checkerframework.checker.index.qual.NonNegative int s4CodeIndex)

    • readUTF8

      @Nullable protected final String readUTF8()
      Reads an UTF8 string constant pool item in code, incrementing codeIndex by 2.
      Returns:
      the String corresponding to the UTF8 item, or null if codeIndex points to an item whose value is zero

    • readUTF8

      @Nullable protected final String readUTF8(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
      Reads an UTF8 string constant pool item in code.
      Parameters:
      u2CodeIndex - the index of an unsigned short value in code, whose value is the index of an UTF8 constant pool item
      Returns:
      the String corresponding to the UTF8 item, or null if index is zero or points to an item whose value is zero

    • readNonnullUTF8

      @NonNull public final String readNonnullUTF8()
      Reads the index of an UTF8 item in code, incrementing codeIndex by 2.
      Returns:
      the UTF8 string found in strings at that index

    • readNonnullUTF8

      @NonNull public final String readNonnullUTF8(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)
      Reads the index of an UTF8 item in code.
      Parameters:
      u2CodeIndex - the u 2 code index
      Returns:
      the UTF8 string found in strings at that index

    • readString

      @NonNull public final String readString(@org.checkerframework.checker.index.qual.NonNegative int itemIndex)
      Reads a string in strings at the given index.
      Parameters:
      itemIndex - the item index
      Returns:
      the string

    • readConstItem

      @NonNull public final Object readConstItem()
      Reads the index of a constant item in code, incrementing codeIndex by 2.
      Returns:
      the UTF8 string found in strings at that index

    • readConstItem

      @NonNull protected final Object readConstItem(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)

    • readConst

      @NonNull protected final Object readConst(@org.checkerframework.checker.index.qual.NonNegative int itemIndex)
      Reads a numeric or string constant pool item in code.
      Parameters:
      itemIndex - the index of a constant pool item
      Returns:
      the Integer, Float, Long, Double, String, JavaType or MethodHandle corresponding to the given constant pool item

    • readMethodHandle

      @NonNull public final MethodHandle readMethodHandle()

    • readMethodHandleItem

      @NonNull protected final MethodHandle readMethodHandleItem(@org.checkerframework.checker.index.qual.NonNegative int bsmCodeIndex)

    • readClass

      @Nullable protected final String readClass()
      Reads the class name from the constant pool, incrementing codeIndex by 2.
      Returns:
      the string

    • readNonnullClass

      @NonNull public final String readNonnullClass()
      Reads a class descriptor in code, incrementing codeIndex by 2.
      Returns:
      the string

    • readNonnullClass

      @NonNull public final String readNonnullClass(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)

    • readItem

      public final @org.checkerframework.checker.index.qual.NonNegative int readItem()
      Reads an item index in code, incrementing codeIndex by 2.
      Returns:
      the item at that index in items

    • readItem

      public final @org.checkerframework.checker.index.qual.NonNegative int readItem(@org.checkerframework.checker.index.qual.NonNegative int u2CodeIndex)