org.jacoco.core.internal.analysis
Class MethodAnalyzer

java.lang.Object
  org.objectweb.asm.MethodVisitor
      org.jacoco.core.internal.flow.MethodProbesVisitor
          org.jacoco.core.internal.analysis.MethodAnalyzer

public class MethodAnalyzer
extends MethodProbesVisitor

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

Field Summary

Fields inherited from class org.objectweb.asm.MethodVisitor

api, mv

Constructor Summary

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

Method Summary

IMethodCoverage	getCoverage() Returns the coverage data for this method after this visitor has been processed.
void	visitEnd()
void	visitFieldInsn(int opcode, String owner, String name, String desc)
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	visitInvokeDynamicInsn(String name, String desc, org.objectweb.asm.Handle bsm, Object... bsmArgs)
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	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	visitMethodInsn(int opcode, String owner, String name, String desc)
void	visitMultiANewArrayInsn(String desc, int dims)
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	visitTypeInsn(int opcode, String type)
void	visitVarInsn(int opcode, int var)

Methods inherited from class org.objectweb.asm.MethodVisitor

visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitFrame, visitLocalVariable, visitMaxs, visitParameterAnnotation, visitTryCatchBlock

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[] probes)

New Method analyzer for the given probe data.

Parameters:

name - method name

desc - description of the method

signature - optional parameterized signature

probes - 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)

Overrides:

visitLabel in class org.objectweb.asm.MethodVisitor

visitLineNumber

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

Overrides:

visitLineNumber in class org.objectweb.asm.MethodVisitor

visitInsn

public void visitInsn(int opcode)

Overrides:

visitInsn in class org.objectweb.asm.MethodVisitor

visitIntInsn

public void visitIntInsn(int opcode,
                         int operand)

Overrides:

visitIntInsn in class org.objectweb.asm.MethodVisitor

visitVarInsn

public void visitVarInsn(int opcode,
                         int var)

Overrides:

visitVarInsn in class org.objectweb.asm.MethodVisitor

visitTypeInsn

public void visitTypeInsn(int opcode,
                          String type)

Overrides:

visitTypeInsn in class org.objectweb.asm.MethodVisitor

visitFieldInsn

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

Overrides:

visitFieldInsn in class org.objectweb.asm.MethodVisitor

visitMethodInsn

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

Overrides:

visitMethodInsn in class org.objectweb.asm.MethodVisitor

visitInvokeDynamicInsn

public void visitInvokeDynamicInsn(String name,
                                   String desc,
                                   org.objectweb.asm.Handle bsm,
                                   Object... bsmArgs)

Overrides:

visitInvokeDynamicInsn in class org.objectweb.asm.MethodVisitor

visitJumpInsn

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

Overrides:

visitJumpInsn in class org.objectweb.asm.MethodVisitor

visitLdcInsn

public void visitLdcInsn(Object cst)

Overrides:

visitLdcInsn in class org.objectweb.asm.MethodVisitor

visitIincInsn

public void visitIincInsn(int var,
                          int increment)

Overrides:

visitIincInsn in class org.objectweb.asm.MethodVisitor

visitTableSwitchInsn

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

Overrides:

visitTableSwitchInsn in class org.objectweb.asm.MethodVisitor

visitLookupSwitchInsn

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

Overrides:

visitLookupSwitchInsn in class org.objectweb.asm.MethodVisitor

visitMultiANewArrayInsn

public void visitMultiANewArrayInsn(String desc,
                                    int dims)

Overrides:

visitMultiANewArrayInsn in class org.objectweb.asm.MethodVisitor

visitProbe

public void visitProbe(int probeId)

Description copied from class: MethodProbesVisitor

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

Specified by:

visitProbe in class MethodProbesVisitor

Parameters:

probeId - id of the probe to insert

visitJumpInsnWithProbe

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

Description copied from class: MethodProbesVisitor

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 class MethodProbesVisitor

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 class: MethodProbesVisitor

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 class MethodProbesVisitor

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 class: MethodProbesVisitor

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 class MethodProbesVisitor

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 class: MethodProbesVisitor

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 class MethodProbesVisitor

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()

Overrides:

visitEnd in class org.objectweb.asm.MethodVisitor