com.intellij.rt.coverage.instrumentation.filters.lines

Class BaseLineFilter

java.lang.Object

org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

com.intellij.rt.coverage.instrumentation.filters.lines.CoverageFilter

com.intellij.rt.coverage.instrumentation.filters.lines.BaseLineFilter

Direct Known Subclasses:

ClosingBracesFilter, ComposeSkipGroupLineFilter, ComposeTraceEventStartLineFilter, KotlinTryFinallyLineFilter, TryFinallyLineFilter, TryWithResourcesJava8LineFilter, TryWithResourcesLineFilter

public abstract class BaseLineFilter
extends CoverageFilter

This is a helper filter to ignore a line.

The filter tries to remove a line after the corresponding block is finished. The line is not removed if

1. Unexpected instruction is met, expected instructions should not cause setHasInstructions() calls
2. Incorrect state of the filter: shouldRemoveLine()
3. Line was not filtered in the previous blocks

All visitor methods call setHasInstructions() by default. When processing the expected instruction, redirect the super call to the parent visitor MethodVisitor.mv. One should call setHasInstructions() when the processed instruction is unexpected in the overriding visitor.

Field Summary

Fields inherited from class com.intellij.rt.coverage.instrumentation.filters.lines.CoverageFilter

myContext

Fields inherited from class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

api, mv

Constructor Summary

Constructors

Constructor and Description
BaseLineFilter()

Method Summary

Modifier and Type	Method and Description
protected int	getCurrentLine()
protected boolean	hasInstructions()
protected void	onLineRemoved()
protected void	setHasInstructions()
protected abstract boolean	shouldRemoveLine()
void	visitEnd()
void	visitFieldInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String descriptor)
void	visitIincInsn(int varIndex, int increment)
void	visitInsn(int opcode)
void	visitIntInsn(int opcode, int operand)
void	visitInvokeDynamicInsn(java.lang.String name, java.lang.String descriptor, org.jetbrains.coverage.org.objectweb.asm.Handle bootstrapMethodHandle, java.lang.Object... bootstrapMethodArguments)
void	visitJumpInsn(int opcode, org.jetbrains.coverage.org.objectweb.asm.Label label)
void	visitLdcInsn(java.lang.Object value)
void	visitLineNumber(int line, org.jetbrains.coverage.org.objectweb.asm.Label start)
void	visitLookupSwitchInsn(org.jetbrains.coverage.org.objectweb.asm.Label dflt, int[] keys, org.jetbrains.coverage.org.objectweb.asm.Label[] labels)
void	visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String descriptor, boolean isInterface)
void	visitMultiANewArrayInsn(java.lang.String descriptor, int numDimensions)
void	visitTableSwitchInsn(int min, int max, org.jetbrains.coverage.org.objectweb.asm.Label dflt, org.jetbrains.coverage.org.objectweb.asm.Label... labels)
void	visitTypeInsn(int opcode, java.lang.String type)
void	visitVarInsn(int opcode, int varIndex)
protected boolean	wasLineSeenBefore()

Methods inherited from class com.intellij.rt.coverage.instrumentation.filters.lines.CoverageFilter

initFilter, isApplicable

Methods inherited from class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

getDelegate, visitAnnotableParameterCount, visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitFrame, visitInsnAnnotation, visitLabel, visitLocalVariable, visitLocalVariableAnnotation, visitMaxs, visitMethodInsn, visitParameter, visitParameterAnnotation, visitTryCatchAnnotation, visitTryCatchBlock, visitTypeAnnotation

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseLineFilter

public BaseLineFilter()

Method Detail

shouldRemoveLine

protected abstract boolean shouldRemoveLine()

onLineRemoved

protected void onLineRemoved()

hasInstructions

protected boolean hasInstructions()

setHasInstructions

protected void setHasInstructions()

getCurrentLine

protected int getCurrentLine()

wasLineSeenBefore

protected boolean wasLineSeenBefore()

visitLineNumber

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

Overrides:

visitLineNumber in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitEnd

public void visitEnd()

Overrides:

visitEnd in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitMethodInsn

public void visitMethodInsn(int opcode,
                            java.lang.String owner,
                            java.lang.String name,
                            java.lang.String descriptor,
                            boolean isInterface)

Overrides:

visitMethodInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitLdcInsn

public void visitLdcInsn(java.lang.Object value)

Overrides:

visitLdcInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitInsn

public void visitInsn(int opcode)

Overrides:

visitInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitTableSwitchInsn

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

Overrides:

visitTableSwitchInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitMultiANewArrayInsn

public void visitMultiANewArrayInsn(java.lang.String descriptor,
                                    int numDimensions)

Overrides:

visitMultiANewArrayInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitTypeInsn

public void visitTypeInsn(int opcode,
                          java.lang.String type)

Overrides:

visitTypeInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitLookupSwitchInsn

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

Overrides:

visitLookupSwitchInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitInvokeDynamicInsn

public void visitInvokeDynamicInsn(java.lang.String name,
                                   java.lang.String descriptor,
                                   org.jetbrains.coverage.org.objectweb.asm.Handle bootstrapMethodHandle,
                                   java.lang.Object... bootstrapMethodArguments)

Overrides:

visitInvokeDynamicInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitIincInsn

public void visitIincInsn(int varIndex,
                          int increment)

Overrides:

visitIincInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitFieldInsn

public void visitFieldInsn(int opcode,
                           java.lang.String owner,
                           java.lang.String name,
                           java.lang.String descriptor)

Overrides:

visitFieldInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitIntInsn

public void visitIntInsn(int opcode,
                         int operand)

Overrides:

visitIntInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitJumpInsn

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

Overrides:

visitJumpInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor

visitVarInsn

public void visitVarInsn(int opcode,
                         int varIndex)

Overrides:

visitVarInsn in class org.jetbrains.coverage.org.objectweb.asm.MethodVisitor