Package org.jacoco.core.internal.flow

Class LabelFlowAnalyzer

  • public final class LabelFlowAnalyzer
extends org.objectweb.asm.MethodVisitor
    Method visitor to collect flow related information about the Labels within a class. It calculates the properties "multitarget" and "successor" that can afterwards be obtained via LabelInfo.

    • Field Summary

      • Fields inherited from class org.objectweb.asm.MethodVisitor

        api, mv

    • Constructor Summary

      Constructors 
      Constructor Description
      LabelFlowAnalyzer()
      Create new instance.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static void markLabels​(org.objectweb.asm.tree.MethodNode method)
      Marks all labels of the method with control flow information.
      void visitFieldInsn​(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)  
      void visitIincInsn​(int var, int increment)  
      void visitInsn​(int opcode)  
      void visitIntInsn​(int opcode, int operand)  
      void visitInvokeDynamicInsn​(java.lang.String name, java.lang.String desc, org.objectweb.asm.Handle bsm, java.lang.Object... bsmArgs)  
      void visitJumpInsn​(int opcode, org.objectweb.asm.Label label)  
      void visitLabel​(org.objectweb.asm.Label label)  
      void visitLdcInsn​(java.lang.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 visitMethodInsn​(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc, boolean itf)  
      void visitMultiANewArrayInsn​(java.lang.String desc, int dims)  
      void visitTableSwitchInsn​(int min, int max, org.objectweb.asm.Label dflt, org.objectweb.asm.Label... labels)  
      void visitTryCatchBlock​(org.objectweb.asm.Label start, org.objectweb.asm.Label end, org.objectweb.asm.Label handler, java.lang.String type)  
      void visitTypeInsn​(int opcode, java.lang.String type)  
      void visitVarInsn​(int opcode, int var)  

      • Methods inherited from class org.objectweb.asm.MethodVisitor

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

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • LabelFlowAnalyzer

        public LabelFlowAnalyzer()
        Create new instance.

    • Method Detail

      • markLabels

        public static void markLabels​(org.objectweb.asm.tree.MethodNode method)
        Marks all labels of the method with control flow information.
        Parameters:
        method - Method to mark labels

      • visitTryCatchBlock

        public void visitTryCatchBlock​(org.objectweb.asm.Label start,
                               org.objectweb.asm.Label end,
                               org.objectweb.asm.Label handler,
                               java.lang.String type)
        Overrides:
        visitTryCatchBlock 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

      • 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

      • 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

      • 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,
                          java.lang.String type)
        Overrides:
        visitTypeInsn in class org.objectweb.asm.MethodVisitor

      • visitFieldInsn

        public void visitFieldInsn​(int opcode,
                           java.lang.String owner,
                           java.lang.String name,
                           java.lang.String desc)
        Overrides:
        visitFieldInsn in class org.objectweb.asm.MethodVisitor

      • visitMethodInsn

        public void visitMethodInsn​(int opcode,
                            java.lang.String owner,
                            java.lang.String name,
                            java.lang.String desc,
                            boolean itf)
        Overrides:
        visitMethodInsn in class org.objectweb.asm.MethodVisitor

      • visitInvokeDynamicInsn

        public void visitInvokeDynamicInsn​(java.lang.String name,
                                   java.lang.String desc,
                                   org.objectweb.asm.Handle bsm,
                                   java.lang.Object... bsmArgs)
        Overrides:
        visitInvokeDynamicInsn in class org.objectweb.asm.MethodVisitor

      • visitLdcInsn

        public void visitLdcInsn​(java.lang.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

      • visitMultiANewArrayInsn

        public void visitMultiANewArrayInsn​(java.lang.String desc,
                                    int dims)
        Overrides:
        visitMultiANewArrayInsn in class org.objectweb.asm.MethodVisitor