Package org.jacoco.core.internal.flow
Class MethodSanitizer
java.lang.Object
org.objectweb.asm.MethodVisitor
org.objectweb.asm.tree.MethodNode
org.objectweb.asm.commons.JSRInlinerAdapter
org.jacoco.core.internal.flow.MethodSanitizer
- All Implemented Interfaces:
org.objectweb.asm.Opcodes
class MethodSanitizer
extends org.objectweb.asm.commons.JSRInlinerAdapter
This method visitor fixes two potential issues with Java byte code:
- Remove JSR/RET instructions by inlining subroutines which are deprecated since Java 6. The RET statement complicates control flow analysis as the jump target is not explicitly given.
- Remove code attributes line number and local variable name if they point to invalid offsets which some tools create. When writing out such invalid labels with ASM class files do not verify any more.
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Field Summary
Fields inherited from class org.objectweb.asm.tree.MethodNode
access, annotationDefault, attrs, desc, exceptions, instructions, invisibleAnnotableParameterCount, invisibleAnnotations, invisibleLocalVariableAnnotations, invisibleParameterAnnotations, invisibleTypeAnnotations, localVariables, maxLocals, maxStack, name, parameters, signature, tryCatchBlocks, visibleAnnotableParameterCount, visibleAnnotations, visibleLocalVariableAnnotations, visibleParameterAnnotations, visibleTypeAnnotations
Fields inherited from class org.objectweb.asm.MethodVisitor
api, mv
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, V9
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Constructor Summary
ConstructorsConstructorDescriptionMethodSanitizer
(org.objectweb.asm.MethodVisitor mv, int access, String name, String desc, String signature, String[] exceptions) -
Method Summary
Modifier and TypeMethodDescriptionvoid
visitLineNumber
(int line, org.objectweb.asm.Label start) void
visitLocalVariable
(String name, String desc, String signature, org.objectweb.asm.Label start, org.objectweb.asm.Label end, int index) Methods inherited from class org.objectweb.asm.commons.JSRInlinerAdapter
visitEnd, visitJumpInsn
Methods inherited from class org.objectweb.asm.tree.MethodNode
accept, accept, check, getLabelNode, visitAnnotableParameterCount, visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitFieldInsn, visitFrame, visitIincInsn, visitInsn, visitInsnAnnotation, visitIntInsn, visitInvokeDynamicInsn, visitLabel, visitLdcInsn, visitLocalVariableAnnotation, visitLookupSwitchInsn, visitMaxs, visitMethodInsn, visitMultiANewArrayInsn, visitParameter, visitParameterAnnotation, visitTableSwitchInsn, visitTryCatchAnnotation, visitTryCatchBlock, visitTypeAnnotation, visitTypeInsn, visitVarInsn
Methods inherited from class org.objectweb.asm.MethodVisitor
getDelegate, visitMethodInsn
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Constructor Details
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MethodSanitizer
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Method Details
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visitLocalVariable
public void visitLocalVariable(String name, String desc, String signature, org.objectweb.asm.Label start, org.objectweb.asm.Label end, int index) - Overrides:
visitLocalVariable
in classorg.objectweb.asm.tree.MethodNode
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visitLineNumber
public void visitLineNumber(int line, org.objectweb.asm.Label start) - Overrides:
visitLineNumber
in classorg.objectweb.asm.tree.MethodNode
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