Package com.ibm.wala.classLoader

Class ClassLoaderImpl

java.lang.Object
com.ibm.wala.classLoader.ClassLoaderImpl
All Implemented Interfaces:
IClassLoader
Direct Known Subclasses:
JavaSourceLoaderImpl, WDexClassLoaderImpl
public class ClassLoaderImpl extends Object implements IClassLoader
A class loader that reads class definitions from a set of Modules.

  • Field Details

    • DEBUG_LEVEL

      public static final int DEBUG_LEVEL
      See Also:

    • loadedClasses

      protected final Map<TypeName,IClass> loadedClasses
      A mapping from class name (TypeName) to IClass

    • cha

      protected final IClassHierarchy cha
      Governing class hierarchy

  • Constructor Details

  • Method Details

    • loadAllSources

      protected void loadAllSources(Set<ModuleEntry> sourceModules)
      Set up mapping from type name to Module Entry

    • init

      public void init(List<Module> modules) throws IOException
      Initialize internal data structures
      Specified by:
      init in interface IClassLoader
      Throws:
      IllegalArgumentException - if modules is null
      IOException

    • getReference

      public ClassLoaderReference getReference()
      Description copied from interface: IClassLoader
      Return the ClassLoaderReference for this class loader.
      Specified by:
      getReference in interface IClassLoader
      Returns:
      ClassLoaderReference

    • iterateAllClasses

      public Iterator<IClass> iterateAllClasses()
      Specified by:
      iterateAllClasses in interface IClassLoader
      Returns:
      an Iterator of all classes loaded by this loader

    • lookupClass

      public IClass lookupClass(TypeName className)
      Description copied from interface: IClassLoader
      Find and return the IClass defined by this class loader that corresponds to the given class name.
      Specified by:
      lookupClass in interface IClassLoader
      Parameters:
      className - name of the class
      Returns:
      the IClass defined by this class loader that corresponds to the given class name, or null if not found.

    • getParent

      public IClassLoader getParent()
      Method getParent.
      Specified by:
      getParent in interface IClassLoader
      Returns:
      the parent IClassLoader, if any, or null

    • getName

      public Atom getName()
      Specified by:
      getName in interface IClassLoader
      Returns:
      the unique name that identifies this class loader.

    • getLanguage

      public Language getLanguage()
      Specified by:
      getLanguage in interface IClassLoader
      Returns:
      the unique name that identifies the programming language from which this class loader loads code.

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • getNumberOfClasses

      public int getNumberOfClasses()
      Specified by:
      getNumberOfClasses in interface IClassLoader
      Returns:
      the number of classes in scope to be loaded by this loader

    • getNumberOfMethods

      public int getNumberOfMethods()
      Specified by:
      getNumberOfMethods in interface IClassLoader

    • getSourceFileName

      public String getSourceFileName(IClass klass)
      Specified by:
      getSourceFileName in interface IClassLoader
      Parameters:
      klass - the class for which information is desired.
      Returns:
      name of source file corresponding to the class, or null if not available

    • getSource

      public Reader getSource(IMethod method, int offset)
      Specified by:
      getSource in interface IClassLoader
      Parameters:
      method - The method for which information is desired
      offset - an offset into the bytecode of the given method.
      Returns:
      input stream representing the source file for a given bytecode index of a given method, or null if not available

    • getSourceFileName

      public String getSourceFileName(IMethod method, int offset)
      Specified by:
      getSourceFileName in interface IClassLoader
      Parameters:
      method - The method for which information is desired
      offset - an offset into the bytecode of the given method.
      Returns:
      name of the source file corresponding to the given offset in the given method. Note that this api allows a single method to arise from multiple source files, which is deliberate as it can happen in some languages.

    • getSource

      public Reader getSource(IClass klass)
      Specified by:
      getSource in interface IClassLoader
      Returns:
      input stream representing the source file for a class, or null if not available

    • removeAll

      public void removeAll(Collection<IClass> toRemove)
      Description copied from interface: IClassLoader
      blow away references to any classes in the set
      Specified by:
      removeAll in interface IClassLoader
      Parameters:
      toRemove - Collection<IClass>

    • getInstructionFactory

      public SSAInstructionFactory getInstructionFactory()
      Specified by:
      getInstructionFactory in interface IClassLoader