How to use

AddArgumentCorrectionProposal

in

org.eclipse.jdt.internal.ui.text.correction.proposals

private boolean isMoreSpecific(ITypeBinding best, ITypeBinding curr) {
  return (canAssign(best, curr) && !canAssign(curr, best));
}

private Expression evaluateArgumentExpressions(AST ast, ITypeBinding requiredType, String key) {
  CompilationUnit root= (CompilationUnit) fCallerNode.getRoot();
  int offset= fCallerNode.getStartPosition();
  Expression best= null;
  ITypeBinding bestType= null;
  ScopeAnalyzer analyzer= new ScopeAnalyzer(root);
  IBinding[] bindings= analyzer.getDeclarationsInScope(offset, ScopeAnalyzer.VARIABLES);
  for (int i= 0; i < bindings.length; i++) {
    IVariableBinding curr= (IVariableBinding) bindings[i];
    ITypeBinding type= curr.getType();
    if (type != null && canAssign(type, requiredType) && testModifier(curr)) {
      if (best == null || isMoreSpecific(bestType, type)) {
        best= ast.newSimpleName(curr.getName());
        bestType= type;
      }
      addLinkedPositionProposal(key, curr.getName(), null);
    }
  }
  Expression defaultExpression= ASTNodeFactory.newDefaultExpression(ast, requiredType);
  if (best == null) {
    best= defaultExpression;
  }
  addLinkedPositionProposal(key, ASTNodes.asString(defaultExpression), null);
  return best;
}

@Override
protected ASTRewrite getRewrite() {
  AST ast= fCallerNode.getAST();
  ASTRewrite rewrite= ASTRewrite.create(ast);
  ChildListPropertyDescriptor property= getProperty();
  for (int i= 0; i < fInsertIndexes.length; i++) {
    int idx= fInsertIndexes[i];
    String key= "newarg_" + i; //$NON-NLS-1$
    Expression newArg= evaluateArgumentExpressions(ast, fParamTypes[idx], key);
    ListRewrite listRewriter= rewrite.getListRewrite(fCallerNode, property);
    listRewriter.insertAt(newArg, idx, null);
    addLinkedPosition(rewrite.track(newArg), i == 0, key);
  }
  return rewrite;
}

  label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addarguments_description, arg);
AddArgumentCorrectionProposal proposal= new AddArgumentCorrectionProposal(label, context.getCompilationUnit(), invocationNode, indexSkipped, paramTypes, IProposalRelevance.ADD_ARGUMENTS);
proposal.setImage(JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_ADD));
proposals.add(proposal);

private Expression evaluateArgumentExpressions(AST ast, ITypeBinding requiredType, String key) {
  CompilationUnit root= (CompilationUnit) fCallerNode.getRoot();
  int offset= fCallerNode.getStartPosition();
  Expression best= null;
  ITypeBinding bestType= null;
  ScopeAnalyzer analyzer= new ScopeAnalyzer(root);
  IBinding[] bindings= analyzer.getDeclarationsInScope(offset, ScopeAnalyzer.VARIABLES);
  for (int i= 0; i < bindings.length; i++) {
    IVariableBinding curr= (IVariableBinding) bindings[i];
    ITypeBinding type= curr.getType();
    if (type != null && canAssign(type, requiredType) && testModifier(curr)) {
      if (best == null || isMoreSpecific(bestType, type)) {
        best= ast.newSimpleName(curr.getName());
        bestType= type;
      }
      addLinkedPositionProposal(key, curr.getName(), null);
    }
  }
  Expression defaultExpression= ASTNodeFactory.newDefaultExpression(ast, requiredType);
  if (best == null) {
    best= defaultExpression;
  }
  addLinkedPositionProposal(key, ASTNodes.asString(defaultExpression), null);
  return best;
}

@Override
protected ASTRewrite getRewrite() {
  AST ast= fCallerNode.getAST();
  ASTRewrite rewrite= ASTRewrite.create(ast);
  ChildListPropertyDescriptor property= getProperty();
  for (int i= 0; i < fInsertIndexes.length; i++) {
    int idx= fInsertIndexes[i];
    String key= "newarg_" + i; //$NON-NLS-1$
    Expression newArg= evaluateArgumentExpressions(ast, fParamTypes[idx], key);
    ListRewrite listRewriter= rewrite.getListRewrite(fCallerNode, property);
    listRewriter.insertAt(newArg, idx, null);
    addLinkedPosition(rewrite.track(newArg), i == 0, key);
  }
  return rewrite;
}

  label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_addarguments_description, arg);
AddArgumentCorrectionProposal proposal= new AddArgumentCorrectionProposal(label, context.getCompilationUnit(), invocationNode, indexSkipped, paramTypes, IProposalRelevance.ADD_ARGUMENTS);
proposal.setImage(JavaPluginImages.get(JavaPluginImages.IMG_CORRECTION_ADD));
proposals.add(proposal);

private boolean isMoreSpecific(ITypeBinding best, ITypeBinding curr) {
  return (canAssign(best, curr) && !canAssign(curr, best));
}