org.jacoco.core.internal.analysis

Class MethodAnalyzer

java.lang.Object

org.jacoco.core.internal.analysis.MethodAnalyzer

All Implemented Interfaces:

IMethodProbesVisitor, org.objectweb.asm.MethodVisitor

public class MethodAnalyzer
extends Object
implements IMethodProbesVisitor

A IMethodProbesVisitor that analyzes which statements and branches of a method has been executed based on given probe data.

Constructor Summary

Constructors

Constructor and Description
MethodAnalyzer(String name, String desc, String signature, boolean[] executionData) New Method analyzer for the given probe data.

Method Summary

Methods

Modifier and Type	Method and Description
IMethodCoverage	getCoverage() Returns the coverage data for this method after this visitor has been processed.
org.objectweb.asm.AnnotationVisitor	visitAnnotation(String desc, boolean visible)
org.objectweb.asm.AnnotationVisitor	visitAnnotationDefault()
void	visitAttribute(org.objectweb.asm.Attribute attr)
void	visitCode()
void	visitEnd()
void	visitFieldInsn(int opcode, String owner, String name, String desc)
void	visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack)
void	visitIincInsn(int var, int increment)
void	visitInsn(int opcode)
void	visitInsnWithProbe(int opcode, int probeId) Visits a zero operand instruction with a probe.
void	visitIntInsn(int opcode, int operand)
void	visitJumpInsn(int opcode, org.objectweb.asm.Label label)
void	visitJumpInsnWithProbe(int opcode, org.objectweb.asm.Label label, int probeId) Visits a jump instruction.
void	visitLabel(org.objectweb.asm.Label label)
void	visitLdcInsn(Object cst)
void	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)
void	visitLookupSwitchInsn(org.objectweb.asm.Label dflt, int[] keys, org.objectweb.asm.Label[] labels)
void	visitLookupSwitchInsnWithProbes(org.objectweb.asm.Label dflt, int[] keys, org.objectweb.asm.Label[] labels) Visits a LOOKUPSWITCH instruction with optional probes for each target label.
void	visitMaxs(int maxStack, int maxLocals)
void	visitMethodInsn(int opcode, String owner, String name, String desc)
void	visitMultiANewArrayInsn(String desc, int dims)
org.objectweb.asm.AnnotationVisitor	visitParameterAnnotation(int parameter, String desc, boolean visible)
void	visitProbe(int probeId) Visits an unconditional probe that should be inserted at the current position.
void	visitTableSwitchInsn(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels)
void	visitTableSwitchInsnWithProbes(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels) Visits a TABLESWITCH instruction with optional probes for each target label.
void	visitTryCatchBlock(org.objectweb.asm.Label start, org.objectweb.asm.Label end, org.objectweb.asm.Label handler, String type)
void	visitTypeInsn(int opcode, String type)
void	visitVarInsn(int opcode, int var)

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodAnalyzer

public MethodAnalyzer(String name,
              String desc,
              String signature,
              boolean[] executionData)

New Method analyzer for the given probe data.

Parameters:

name - method name

desc - description of the method

signature - optional parameterized signature

executionData - recorded probe date of the containing class or null if the class is not executed at all

Method Detail

getCoverage

public IMethodCoverage getCoverage()

Returns the coverage data for this method after this visitor has been processed.

Returns:

coverage data for this method

visitLabel

public void visitLabel(org.objectweb.asm.Label label)

Specified by:

visitLabel in interface org.objectweb.asm.MethodVisitor

visitLineNumber

public void visitLineNumber(int line,
                   org.objectweb.asm.Label start)

Specified by:

visitLineNumber in interface org.objectweb.asm.MethodVisitor

visitInsn

public void visitInsn(int opcode)

Specified by:

visitInsn in interface org.objectweb.asm.MethodVisitor

visitIntInsn

public void visitIntInsn(int opcode,
                int operand)

Specified by:

visitIntInsn in interface org.objectweb.asm.MethodVisitor

visitVarInsn

public void visitVarInsn(int opcode,
                int var)

Specified by:

visitVarInsn in interface org.objectweb.asm.MethodVisitor

visitTypeInsn

public void visitTypeInsn(int opcode,
                 String type)

Specified by:

visitTypeInsn in interface org.objectweb.asm.MethodVisitor

visitFieldInsn

public void visitFieldInsn(int opcode,
                  String owner,
                  String name,
                  String desc)

Specified by:

visitFieldInsn in interface org.objectweb.asm.MethodVisitor

visitMethodInsn

public void visitMethodInsn(int opcode,
                   String owner,
                   String name,
                   String desc)

Specified by:

visitMethodInsn in interface org.objectweb.asm.MethodVisitor

visitJumpInsn

public void visitJumpInsn(int opcode,
                 org.objectweb.asm.Label label)

Specified by:

visitJumpInsn in interface org.objectweb.asm.MethodVisitor

visitLdcInsn

public void visitLdcInsn(Object cst)

Specified by:

visitLdcInsn in interface org.objectweb.asm.MethodVisitor

visitIincInsn

public void visitIincInsn(int var,
                 int increment)

Specified by:

visitIincInsn in interface org.objectweb.asm.MethodVisitor

visitTableSwitchInsn

public void visitTableSwitchInsn(int min,
                        int max,
                        org.objectweb.asm.Label dflt,
                        org.objectweb.asm.Label[] labels)

Specified by:

visitTableSwitchInsn in interface org.objectweb.asm.MethodVisitor

visitLookupSwitchInsn

public void visitLookupSwitchInsn(org.objectweb.asm.Label dflt,
                         int[] keys,
                         org.objectweb.asm.Label[] labels)

Specified by:

visitLookupSwitchInsn in interface org.objectweb.asm.MethodVisitor

visitMultiANewArrayInsn

public void visitMultiANewArrayInsn(String desc,
                           int dims)

Specified by:

visitMultiANewArrayInsn in interface org.objectweb.asm.MethodVisitor

visitProbe

public void visitProbe(int probeId)

Description copied from interface: IMethodProbesVisitor

Visits an unconditional probe that should be inserted at the current position.

Specified by:

visitProbe in interface IMethodProbesVisitor

Parameters:

probeId - id of the probe to insert

visitJumpInsnWithProbe

public void visitJumpInsnWithProbe(int opcode,
                          org.objectweb.asm.Label label,
                          int probeId)

Description copied from interface: IMethodProbesVisitor

Visits a jump instruction. A probe with the given id should be inserted in a way that it is executed only when the jump to the given label is executed.

Specified by:

visitJumpInsnWithProbe in interface IMethodProbesVisitor

Parameters:

opcode - the opcode of the type instruction to be visited. This opcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, IFNULL or IFNONNULL.

label - the operand of the instruction to be visited. This operand is a label that designates the instruction to which the jump instruction may jump.

probeId - id of the probe

See Also:

MethodVisitor.visitJumpInsn(int, Label)

visitInsnWithProbe

public void visitInsnWithProbe(int opcode,
                      int probeId)

Description copied from interface: IMethodProbesVisitor

Visits a zero operand instruction with a probe. This event is used only for instructions that terminate the method. Therefore the probe must be inserted before the actual instruction.

Specified by:

visitInsnWithProbe in interface IMethodProbesVisitor

Parameters:

opcode - the opcode of the instruction to be visited. This opcode is either IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN or ATHROW.

probeId - id of the probe

See Also:

MethodVisitor.visitInsn(int)

visitTableSwitchInsnWithProbes

public void visitTableSwitchInsnWithProbes(int min,
                                  int max,
                                  org.objectweb.asm.Label dflt,
                                  org.objectweb.asm.Label[] labels)

Description copied from interface: IMethodProbesVisitor

Visits a TABLESWITCH instruction with optional probes for each target label. Implementations can be optimized based on the fact that the same target labels will always have the same probe id within a call to this method. The probe id for each label can be obtained with LabelInfo.getProbeId(Label).

Specified by:

visitTableSwitchInsnWithProbes in interface IMethodProbesVisitor

Parameters:

min - the minimum key value.

max - the maximum key value.

dflt - beginning of the default handler block.

labels - beginnings of the handler blocks. labels[i] is the beginning of the handler block for the min + i key.

See Also:

MethodVisitor.visitTableSwitchInsn(int, int, Label, Label[])

visitLookupSwitchInsnWithProbes

public void visitLookupSwitchInsnWithProbes(org.objectweb.asm.Label dflt,
                                   int[] keys,
                                   org.objectweb.asm.Label[] labels)

Description copied from interface: IMethodProbesVisitor

Visits a LOOKUPSWITCH instruction with optional probes for each target label. Implementations can be optimized based on the fact that the same target labels will always have the same probe id within a call to this method. The probe id for each label can be obtained with LabelInfo.getProbeId(Label).

Specified by:

visitLookupSwitchInsnWithProbes in interface IMethodProbesVisitor

Parameters:

dflt - beginning of the default handler block.

keys - the values of the keys.

labels - beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.

See Also:

MethodVisitor.visitLookupSwitchInsn(Label, int[], Label[])

visitEnd

public void visitEnd()

Specified by:

visitEnd in interface org.objectweb.asm.MethodVisitor

visitAnnotationDefault

public org.objectweb.asm.AnnotationVisitor visitAnnotationDefault()

Specified by:

visitAnnotationDefault in interface org.objectweb.asm.MethodVisitor

visitAnnotation

public org.objectweb.asm.AnnotationVisitor visitAnnotation(String desc,
                                                  boolean visible)

Specified by:

visitAnnotation in interface org.objectweb.asm.MethodVisitor

visitParameterAnnotation

public org.objectweb.asm.AnnotationVisitor visitParameterAnnotation(int parameter,
                                                           String desc,
                                                           boolean visible)

Specified by:

visitParameterAnnotation in interface org.objectweb.asm.MethodVisitor

visitAttribute

public void visitAttribute(org.objectweb.asm.Attribute attr)

Specified by:

visitAttribute in interface org.objectweb.asm.MethodVisitor

visitCode

public void visitCode()

Specified by:

visitCode in interface org.objectweb.asm.MethodVisitor

visitTryCatchBlock

public void visitTryCatchBlock(org.objectweb.asm.Label start,
                      org.objectweb.asm.Label end,
                      org.objectweb.asm.Label handler,
                      String type)

Specified by:

visitTryCatchBlock in interface org.objectweb.asm.MethodVisitor

visitFrame

public void visitFrame(int type,
              int nLocal,
              Object[] local,
              int nStack,
              Object[] stack)

Specified by:

visitFrame in interface org.objectweb.asm.MethodVisitor

visitLocalVariable

public void visitLocalVariable(String name,
                      String desc,
                      String signature,
                      org.objectweb.asm.Label start,
                      org.objectweb.asm.Label end,
                      int index)

Specified by:

visitLocalVariable in interface org.objectweb.asm.MethodVisitor

visitMaxs

public void visitMaxs(int maxStack,
             int maxLocals)

Specified by:

visitMaxs in interface org.objectweb.asm.MethodVisitor