Package org.codehaus.groovy.classgen.asm
Class BytecodeHelper
java.lang.Object
org.codehaus.groovy.classgen.asm.BytecodeHelper
- All Implemented Interfaces:
org.objectweb.asm.Opcodes
A helper class for bytecode generation with AsmClassGenerator.
- Version:
- $Revision$
- Author:
- James Strachan, Bing Ran, Jochen Theodorou
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Field Summary
Fields inherited from interface org.objectweb.asm.Opcodes
AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V9
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic boolean
Generates the bytecode to autobox the current value on the stackstatic boolean
box top level operandstatic void
static void
static void
doCastToPrimitive
(org.objectweb.asm.MethodVisitor mv, ClassNode sourceType, ClassNode targetType) Given a wrapped number type (Byte, Integer, Short, ...), generates bytecode to convert it to a primitive number (int, long, double) using calls to wrapped.[targetType]Value()static void
static String
returns a name that Class.forName() can take.static String
static String
getClassInternalName
(String name) static String
static String[]
getClassInternalNames
(ClassNode[] names) static String
array types are special: eg.: String[]: classname: [Ljava.lang.String; Object: classname: java.lang.Object int[] : classname: [I unlike getTypeDescription '.' is not replaced by '/'.static String
getGenericsBounds
(ClassNode type) static String
static String
static String
getMethodDescriptor
(Class returnType, Class[] paramTypes) static String
getMethodDescriptor
(ClassNode returnType, Parameter[] parameters) static String
static String
array types are special: eg.: String[]: classname: [Ljava/lang/String; int[]: [Istatic void
static void
negateBoolean
(org.objectweb.asm.MethodVisitor mv) negate a boolean on stack.static void
pushConstant
(org.objectweb.asm.MethodVisitor mv, int value) static void
Generates the bytecode to unbox the current value on the stackstatic void
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Constructor Details
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BytecodeHelper
public BytecodeHelper()
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Method Details
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getClassInternalName
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getClassInternalName
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getClassInternalName
- Returns:
- the ASM internal name of the type
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getMethodDescriptor
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getMethodDescriptor
- Returns:
- the ASM method type descriptor
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getTypeDescription
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getClassLoadingTypeDescription
array types are special: eg.: String[]: classname: [Ljava.lang.String; Object: classname: java.lang.Object int[] : classname: [I unlike getTypeDescription '.' is not replaced by '/'. it seems that makes problems for the class loading if '.' is replaced by '/'- Returns:
- the ASM type description for class loading
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getTypeDescription
array types are special: eg.: String[]: classname: [Ljava/lang/String; int[]: [I- Returns:
- the ASM type description
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getClassInternalNames
- Returns:
- an array of ASM internal names of the type
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pushConstant
public static void pushConstant(org.objectweb.asm.MethodVisitor mv, int value) -
negateBoolean
public static void negateBoolean(org.objectweb.asm.MethodVisitor mv) negate a boolean on stack. true->false, false->true -
formatNameForClassLoading
returns a name that Class.forName() can take. Notably for arrays: [I, [Ljava.lang.String; etc Regular object type: java.lang.String- Parameters:
name
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doReturn
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getGenericsMethodSignature
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getGenericsSignature
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getGenericsBounds
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load
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doCast
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doCastToPrimitive
public static void doCastToPrimitive(org.objectweb.asm.MethodVisitor mv, ClassNode sourceType, ClassNode targetType) Given a wrapped number type (Byte, Integer, Short, ...), generates bytecode to convert it to a primitive number (int, long, double) using calls to wrapped.[targetType]Value()- Parameters:
mv
- method visitorsourceType
- the wrapped number typetargetType
- the primitive target type
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doCast
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unbox
Generates the bytecode to unbox the current value on the stack -
unbox
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box
box top level operand -
box
Generates the bytecode to autobox the current value on the stack
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