Java Code Examples for com.sun.tools.javac.tree.JCTree#JCAssignOp

@Override
public void visitAssignop( JCTree.JCAssignOp tree )
{
  super.visitAssignop( tree );

  if( _tp.isGenerate() && !shouldProcessForGeneration() )
  {
    // Don't process tree during GENERATE, unless the tree was generated e.g., a bridge method
    return;
  }

  if( isJailbreakReceiver( tree ) )
  {
    // +=, -=, etc. operators not supported with jailbreak, only direct assignment
    _tp.report( tree, Diagnostic.Kind.ERROR, ExtIssueMsg.MSG_COMPOUND_OP_NOT_ALLOWED_REFLECTION.get() );
    Types types = Types.instance( ((BasicJavacTask)_tp.getJavacTask()).getContext() );
    tree.type = types.createErrorType( tree.type );

    result = tree;
  }
  else
  {
    result = tree;
  }
}
 

@Override
public Item makeConcat(JCTree.JCAssignOp tree) {
    // Generate code to make a string builder
    JCDiagnostic.DiagnosticPosition pos = tree.pos();

    // Create a string builder.
    newStringBuilder(tree);

    // Generate code for first string, possibly save one
    // copy under builder
    Item l = gen.genExpr(tree.lhs, tree.lhs.type);
    if (l.width() > 0) {
        gen.getCode().emitop0(dup_x1 + 3 * (l.width() - 1));
    }

    // Load first string and append to builder.
    l.load();
    appendString(tree.lhs);

    // Append all other strings to builder.
    List<JCTree> args = collectAll(tree.rhs);
    for (JCTree t : args) {
        gen.genExpr(t, t.type).load();
        appendString(t);
    }

    // Convert builder to string.
    builderToString(pos);

    return l;
}
 

@Override
public Item makeConcat(JCTree.JCAssignOp tree) {
    List<JCTree> args = collectAll(tree.lhs, tree.rhs);
    Item l = gen.genExpr(tree.lhs, tree.lhs.type);
    emit(args, tree.type, tree.pos());
    return l;
}
 

@Override
public Item makeConcat(JCTree.JCAssignOp tree) {
    // Generate code to make a string builder
    JCDiagnostic.DiagnosticPosition pos = tree.pos();

    // Create a string builder.
    newStringBuilder(tree);

    // Generate code for first string, possibly save one
    // copy under builder
    Item l = gen.genExpr(tree.lhs, tree.lhs.type);
    if (l.width() > 0) {
        gen.getCode().emitop0(dup_x1 + 3 * (l.width() - 1));
    }

    // Load first string and append to builder.
    l.load();
    appendString(tree.lhs);

    // Append all other strings to builder.
    List<JCTree> args = collectAll(tree.rhs);
    for (JCTree t : args) {
        gen.genExpr(t, t.type).load();
        appendString(t);
    }

    // Convert builder to string.
    builderToString(pos);

    return l;
}
 

@Override
public Item makeConcat(JCTree.JCAssignOp tree) {
    List<JCTree> args = collectAll(tree.lhs, tree.rhs);
    Item l = gen.genExpr(tree.lhs, tree.lhs.type);
    emit(args, tree.type, tree.pos());
    return l;
}
 

private JCTree replaceWithReflection( JCTree.JCFieldAccess tree )
{
  TreeMaker make = _tp.getTreeMaker();
  JavacElements javacElems = _tp.getElementUtil();

  boolean isStatic = tree.sym.getModifiers().contains( javax.lang.model.element.Modifier.STATIC );
  if( tree.sym instanceof Symbol.MethodSymbol )
  {
    return tree;
  }

  Tree parent = _tp.getParent( tree );
  if( parent instanceof JCTree.JCAssign && ((JCTree.JCAssign)parent).lhs == tree ||
      parent instanceof JCTree.JCAssignOp && ((JCTree.JCAssignOp)parent).lhs == tree )
  {
    // handled in visitAssign() or visitAssignOp()
    return tree;
  }

  if( parent instanceof JCTree.JCUnary && ((JCTree.JCUnary)parent).arg == tree )
  {
    Tree.Kind kind = parent.getKind();

    if( kind != Tree.Kind.UNARY_MINUS && kind != Tree.Kind.UNARY_PLUS &&
        kind != Tree.Kind.LOGICAL_COMPLEMENT && kind != Tree.Kind.BITWISE_COMPLEMENT )
    {
      // supporting -, +, !, ~  not supporting --, ++
      _tp.report( (JCTree)parent, Diagnostic.Kind.ERROR, ExtIssueMsg.MSG_INCREMENT_OP_NOT_ALLOWED_REFLECTION.get() );
      return tree;
    }
  }

  Type type = tree.sym.type;
  if( type instanceof Type.ErrorType )
  {
    // No such field/method
    return tree;
  }

  Symbol.MethodSymbol reflectMethodSym = findFieldAccessReflectUtilMethod( tree, type, isStatic, false );

  ArrayList<JCExpression> newArgs = new ArrayList<>();
  newArgs.add( isStatic ? makeClassExpr( tree, tree.selected.type ) : tree.selected ); // receiver or class
  newArgs.add( make.Literal( tree.sym.flatName().toString() ) ); // field name

  Symbol.ClassSymbol reflectMethodClassSym =
    IDynamicJdk.instance().getTypeElement( _tp.getContext(), _tp.getCompilationUnit(), ReflectionRuntimeMethods.class.getName() );

  JCTree.JCMethodInvocation reflectCall =
    make.Apply( List.nil(),
      memberAccess( make, javacElems, ReflectionRuntimeMethods.class.getName() + "." + reflectMethodSym.flatName().toString() ),
      List.from( newArgs ) );
  reflectCall.setPos( tree.pos );
  reflectCall.type = type;
  JCTree.JCFieldAccess newMethodSelect = (JCTree.JCFieldAccess)reflectCall.getMethodSelect();
  newMethodSelect.sym = reflectMethodSym;
  newMethodSelect.type = reflectMethodSym.type;
  assignTypes( newMethodSelect.selected, reflectMethodClassSym );

  return reflectCall;
}
 

public abstract Item makeConcat(JCTree.JCAssignOp tree); 

public abstract Item makeConcat(JCTree.JCAssignOp tree);