LLVM 4.0 Compiler

Xcode includes an updated LLVM Compiler version 4.0 with the following enhancements.

Improvements to the Static Analyzer

Xcode’s built-in source code analysis tool, launched with the Analyze command in the Product menu, is enhanced for common security mistakes in API and malloc usages.

• The static analyzer engine can find complicated bugs that span function boundaries using interprocedural analysis.

• More exhaustive memory checks are made to malloc-related memory management and the detection of insecure API uses.

New Interface Builder Support for AppKit Features

Xcode’s Interface Builder includes support for new AppKit features.

• Autolocalization

• Improved trackpad API

• Auto Layout improvements

• CoreUI-based UI customization

• NSView API

• Paging control

• The addition of Page Control View

Scene Kit Editor

Xcode 4.4 introduces a viewer and editor for 3D scene files, included in a project as Collada DAE documents, to support use of the Scene Kit API. The Scene Kit editor allows you to preview and fine-tune the 3D scenes, and play embedded animations. You can also inspect 3D scenes for information to use in your source code. The Scene Kit editor is invoked by selecting a DAE file in the project navigator.

Code Completion Enhancements

Code completion now has an integrated form of QuickHelp with a short description of each item in the list based on the documentation or the specific code snippet. Integrated within the code completion window, it is displayed in a section either above or below the code completion list.

Xcode can offer symbols during code completion that haven't yet been included or imported in the current file (the framework was added to the project, but the #import was not included in the file). When possible, Xcode will use umbrella headers for auto import completions and will denote not-yet-linked symbols with a #error indicating which binary needs to be linked. It is a known limitation that auto import completions are available only for symbols that are already visible in at least one file in the current workspace. If necessary, this can be turned off in the Text Editing preferences.

Find and Search Additions

Find and Search have been enhanced with three new capabilities:

• The Find Bar and Search Navigator have added support for find patterns as a simpler alternative to regular expressions. In the search field, click the magnifying glass icon and select Insert Pattern.

• The Find Navigator now supports searching for references to indexed symbols. Choose Symbolic from the Find Navigator's Style pop-up menu. This form of search performs significantly faster than textual searches and excludes results from comments and nonsource files.

• Xcode can show the callers and callees of the current function or method. This function is accessed from the Show Related Items menu, or by using the Assistant editor and selecting Callers or Callees in the jump bar pop-up menu.

Source Editor Jump Bar Enhanced

The source editor jump bar pop-up menu now lists TODO and #pragma mark comments that are inside methods and functions.

Gesture Support Additions for Track Pad Use

Pinch-to-zoom and two-finger-double-tap change the zoom level in the following editors and viewers:

• User Interface editor

• Hex editor

• Core Data Model editor

• Quicklook editor

• OpenGL ES viewers

• Instruments track view

Three-finger-single-tap invokes QuickHelp.

Two-finger-swipe moves back and forth in the Xcode history.

Notification Enhancement

Xcode 4.4 allows the OS X v10.8 systemwide notification system to display build and warning notifications.