Class MethodAnalyzer
java.lang.Object
org.objectweb.asm.MethodVisitor
org.jacoco.core.internal.flow.MethodProbesVisitor
org.jacoco.core.internal.analysis.MethodAnalyzer
A
MethodProbesVisitor
that builds the Instruction
s of a
method to calculate the detailed execution status.-
Field Summary
FieldsModifier and TypeFieldDescriptionprivate final InstructionsBuilder
private org.objectweb.asm.tree.AbstractInsnNode
Current node of the ASM tree APIFields inherited from class org.objectweb.asm.MethodVisitor
api, mv
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Constructor Summary
ConstructorsConstructorDescriptionMethodAnalyzer
(InstructionsBuilder builder) New instance that uses the given builder. -
Method Summary
Modifier and TypeMethodDescriptionvoid
accept
(org.objectweb.asm.tree.MethodNode methodNode, org.objectweb.asm.MethodVisitor methodVisitor) This method can be overwritten to hook into the process of emitting the instructions of this method asvisitX()
events.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, IFrame frame) 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, IFrame frame) Visits a LOOKUPSWITCH instruction with optional probes for each target label.void
visitMethodInsn
(int opcode, String owner, String name, String desc, boolean itf) void
visitMultiANewArrayInsn
(String desc, int dims) void
visitProbe
(int probeId) Visits an unconditional probe that should be inserted at the current position.private void
visitSwitchInsn
(org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels) private void
visitSwitchInsnWithProbes
(org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels) private void
visitSwitchTarget
(org.objectweb.asm.Label label, int branch) 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, IFrame frame) 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
getDelegate, visitAnnotableParameterCount, visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitEnd, visitFrame, visitInsnAnnotation, visitLocalVariable, visitLocalVariableAnnotation, visitMaxs, visitMethodInsn, visitParameter, visitParameterAnnotation, visitTryCatchAnnotation, visitTryCatchBlock, visitTypeAnnotation
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Field Details
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builder
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currentNode
private org.objectweb.asm.tree.AbstractInsnNode currentNodeCurrent node of the ASM tree API
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Constructor Details
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MethodAnalyzer
MethodAnalyzer(InstructionsBuilder builder) New instance that uses the given builder.
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Method Details
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accept
public void accept(org.objectweb.asm.tree.MethodNode methodNode, org.objectweb.asm.MethodVisitor methodVisitor) Description copied from class:MethodProbesVisitor
This method can be overwritten to hook into the process of emitting the instructions of this method asvisitX()
events.- Overrides:
accept
in classMethodProbesVisitor
- Parameters:
methodNode
- the content to emitmethodVisitor
- A visitor to emit the content to. Note that this is not necessarily this visitor instance but some wrapper which calculates the probes.
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visitLabel
public void visitLabel(org.objectweb.asm.Label label) - Overrides:
visitLabel
in classorg.objectweb.asm.MethodVisitor
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visitLineNumber
public void visitLineNumber(int line, org.objectweb.asm.Label start) - Overrides:
visitLineNumber
in classorg.objectweb.asm.MethodVisitor
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visitInsn
public void visitInsn(int opcode) - Overrides:
visitInsn
in classorg.objectweb.asm.MethodVisitor
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visitIntInsn
public void visitIntInsn(int opcode, int operand) - Overrides:
visitIntInsn
in classorg.objectweb.asm.MethodVisitor
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visitVarInsn
public void visitVarInsn(int opcode, int var) - Overrides:
visitVarInsn
in classorg.objectweb.asm.MethodVisitor
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visitTypeInsn
- Overrides:
visitTypeInsn
in classorg.objectweb.asm.MethodVisitor
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visitFieldInsn
- Overrides:
visitFieldInsn
in classorg.objectweb.asm.MethodVisitor
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visitMethodInsn
- Overrides:
visitMethodInsn
in classorg.objectweb.asm.MethodVisitor
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visitInvokeDynamicInsn
public void visitInvokeDynamicInsn(String name, String desc, org.objectweb.asm.Handle bsm, Object... bsmArgs) - Overrides:
visitInvokeDynamicInsn
in classorg.objectweb.asm.MethodVisitor
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visitJumpInsn
public void visitJumpInsn(int opcode, org.objectweb.asm.Label label) - Overrides:
visitJumpInsn
in classorg.objectweb.asm.MethodVisitor
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visitLdcInsn
- Overrides:
visitLdcInsn
in classorg.objectweb.asm.MethodVisitor
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visitIincInsn
public void visitIincInsn(int var, int increment) - Overrides:
visitIincInsn
in classorg.objectweb.asm.MethodVisitor
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visitTableSwitchInsn
public void visitTableSwitchInsn(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label... labels) - Overrides:
visitTableSwitchInsn
in classorg.objectweb.asm.MethodVisitor
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visitLookupSwitchInsn
public void visitLookupSwitchInsn(org.objectweb.asm.Label dflt, int[] keys, org.objectweb.asm.Label[] labels) - Overrides:
visitLookupSwitchInsn
in classorg.objectweb.asm.MethodVisitor
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visitSwitchInsn
private void visitSwitchInsn(org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels) -
visitMultiANewArrayInsn
- Overrides:
visitMultiANewArrayInsn
in classorg.objectweb.asm.MethodVisitor
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visitProbe
public void visitProbe(int probeId) Description copied from class:MethodProbesVisitor
Visits an unconditional probe that should be inserted at the current position.- Overrides:
visitProbe
in classMethodProbesVisitor
- Parameters:
probeId
- id of the probe to insert
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visitJumpInsnWithProbe
public void visitJumpInsnWithProbe(int opcode, org.objectweb.asm.Label label, int probeId, IFrame frame) 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.- Overrides:
visitJumpInsnWithProbe
in classMethodProbesVisitor
- 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 probeframe
- stackmap frame status after the execution of the jump instruction. The instance is only valid with the call of this method.- See Also:
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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.- Overrides:
visitInsnWithProbe
in classMethodProbesVisitor
- 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:
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visitTableSwitchInsnWithProbes
public void visitTableSwitchInsnWithProbes(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels, IFrame frame) 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 withLabelInfo.getProbeId(Label)
.- Overrides:
visitTableSwitchInsnWithProbes
in classMethodProbesVisitor
- 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 themin + i
key.frame
- stackmap frame status after the execution of the switch instruction. The instance is only valid with the call of this method.- See Also:
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visitLookupSwitchInsnWithProbes
public void visitLookupSwitchInsnWithProbes(org.objectweb.asm.Label dflt, int[] keys, org.objectweb.asm.Label[] labels, IFrame frame) 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 withLabelInfo.getProbeId(Label)
.- Overrides:
visitLookupSwitchInsnWithProbes
in classMethodProbesVisitor
- 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 thekeys[i]
key.frame
- stackmap frame status after the execution of the switch instruction. The instance is only valid with the call of this method.- See Also:
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visitSwitchInsnWithProbes
private void visitSwitchInsnWithProbes(org.objectweb.asm.Label dflt, org.objectweb.asm.Label[] labels) -
visitSwitchTarget
private void visitSwitchTarget(org.objectweb.asm.Label label, int branch)
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