IntelliJ IDEA 2018.2

Java 11に対応、他の改善点多数
7月 26, 2018
新バージョン

機能

  • Java
    • Java 11 - IntelliJ IDEA 2018.2 brings support for the upcoming Java 11. The IDE now supports local-variable syntax for lambda parameters according to the JEP 323, so you can use the var keyword in lambda expressions.
    • Preview data flow information in the editor - The IDE can display known data flow information right inside the editor. To see it, simply invoke the Expression type action (Ctrl+Shift+P) a second time.
    • Type hints for long method chains - IntelliJ IDEA displays type hints for long method chains. This is especially useful when you want to see the type of each call as a type hint for long method chains with generics.
    • Configure Quick Documentation to pop-up together with autocompletion - It’s now possible to configure Quick Documentation to pop-up together with autocompletion.
    • New preview panel for Extract Method - IntelliJ IDEA 2018.2 introduces a new preview panel for the Extract Method refactoring. It lets you see what the results of your refactoring will look like, before confirming the changes. This can be very useful when you refactor code fragments with duplicates.
    • New Contract annotation return values - In version 2018.2, we’ve extended the Contract annotation to support more return values:
    • new - every time the method is executed, it returns a non-null new object.
    • this - the method returns non-null this reference.
    • paramX - the method returns its X-th argument.
    • Smarter Join Line action - Upgraded the Join Lines action (Ctrl+Shift+J on Linux/Windows/macOS). Now, on any method call where the return type is the same as the qualifier type, the action will merge multiple method calls into a chained call. This also works on a declaration or assignment line with a subsequent call.
    • Improved Stream API support - IntelliJ IDEA 2018.2 now detects sorted streams that collect an unsorted collection. This indicates that either the sorting is unnecessary or that using the collector or collection is wrong.
  • Editor
    • Jump outside closing bracket/quote with Tab - Now, while typing, you can use Tab to navigate outside the closing brackets or closing quotes. This works in Java, Kotlin, Groovy, SQL, PHP, JavaScript, and Python files.
    • Underlining reassigned local variables and reassigned parameters - IntelliJ IDEA now underlines reassigned local variables and reassigned parameters, by default.
    • For and while keywords highlighted - When you place the caret at the break or continue keyword, IntelliJ IDEA highlights the for or while keyword of the corresponding loop.
  • User Interface
    • MacBook Touch Bar support - Run, build, and debug your project, commit changes, and update the project right from the Touch Bar.
    • Dark window headers - It's now possible to make the IntelliJ IDEA title bars darker on macOS.
    • New Icons - New cleaner and simpler icons on the IDE toolbar and tool windows reduce visual clutter and ensure better readability.
    • Updated IntelliJ theme on Linux - The appearance of UI elements such as buttons, radio buttons, checkboxes, text fields, select controls, spinner, and tabs have been updated.
  • Version Control
    • Easier resolve of merge conflicts - When working with Git, now it's much easier to find files with merge conflicts. For each changelist, the IDE groups such files under a new Merge Conflicts node. Click the Resolve action link to open the Files Merged with Conflicts dialog.
    • Enhancements in VCS Log tab - You can now delete a Git tag from a commit right from the context menu of the Log tab.
    • Favorite branches in Branch filter - Added Favorite branches to the Branch filter in the Log tab, so you can now quickly filter commits by your favorite branches.
    • Browse repository at revision - If you use Git for version control, you can now explore the state of the repository based on any given revision. Use the new Browse Repository at Revision action, which is available from the context menu in the VCS Log or from the file history, to open the required repository state in the Project Tool Window.
    • Multiple GitHub accounts - With IntelliJ IDEA 2018.2, you can configure as many GitHub accounts as you need, and set the default GitHub account for each of your projects.
    • Skip the Push dialog - While using the Commit and Push action in IntelliJ IDEA 2018.2, you can skip the Push dialog completely, or only show this dialog when pushing to protected branches.
  • JVM Debugger
    • New breakpoint intentions - For debugging Java projects, IntelliJ IDEA 2018.2 includes several new handy breakpoint intention actions. No need to set up the properties of a particular breakpoint by hand anymore - simply press Alt+Enter and the IDE will offer you the new breakpoint intentions, along with all the other available intentions.
    • Ability to filter a breakpoint hit by the caller method - In IntelliJ IDEA 2018.2, you can stop at a breakpoint if a certain condition applies to the call stack.
  • Gradle
    • Auto-discovery of the included buildSrc Gradle project - IntelliJ IDEA 2018.2 links Gradle’s buildSrc sources and their usages in a build, so you can now navigate from the build scripts to the buildSrc source.
    • Debug the Gradle DSL blocks - You can now debug a Gradle script in IntelliJ IDEA. Previously, you could debug a build.gradle file only as a Groovy script. With IntelliJ IDEA 2018.2, you can now set a breakpoint not only at the top level of the Gradle build script, but also in the Gradle DSL blocks.
  • Configuration
    • Project Configuration - In IntelliJ IDEA 2018.2, you can exclude some of the transitive dependencies when adding a new repository library. Click the new Configure action link in the library properties editor. In the new Configure Transitive Dependencies dialog that opens, select only the necessary transitive dependencies you want to add to your current project.
    • IDE configuration - With IntelliJ IDEA 2018.2, you can assign shortcuts to actions right from the Find Action dialog. Simply select the needed action, press Alt+Enter, and enter a shortcut.
  • Differences Viewer
    • Compare any text sources - In IntelliJ IDEA 2018.2, you can open an empty Differences Viewer and paste any text you want to compare in its left and right panels. The new Open Blank Diff Viewer action can be found in the Find Action dialog.
  • Kotlin
    • The bundled Kotlin plugin has been updated to Kotlin 1.2.51
    • Runnable Kotlin scratch files - Now you can run Kotlin Script scratch files and see the results right in the editor. Also, Kotlin Script scratch files can use the declarations from the code in the project.
    • Convert end-of-line comments into block ones and vice versa - Now there’s a handy intention via Alt+Enter to convert end-of-line comments into block comments, and vice versa.
    • Unused Deferred result - Improved support for kotlinx.coroutines: the IDE now reports unused Deferred results.
    • Merge call chain to kotlinx.coroutines.experimental.withContext - The IDE detects redundant async calls that are immediately followed by an await call, and suggests two new intentions to merge the call chain into kotlinx.coroutines.experimental.withContext.
  • Scala
    • Improved display of implicit conversions and arguments - The Scala plugin now can show implicit conversions and arguments as inline hints. These provide navigation and extended information in a tooltip. They are shown in the editor even when an implicit argument is used explicitly.
    • Missing and ambiguous implicit arguments hints - We have also reworked the way errors are highlighted for ambiguous and missing implicit parameters. In addition, the Parameter Info tooltip shows both explicit and implicit parameters.
    • Improved autocompletion for type annotation and pattern matching - The Scala plugin now generates an exhaustive match for sealed types with inheritors, Java Enums, and Scala Enumerations.
    • Scalafmt as an alternative to the built-in formatter - The Scalafmt formatter, which used to be a standalone plugin, is now part of the Scala plugin.
    • Semantic Highlighting - Now, you can enable semantic highlighting for your project and assign distinct colors to a function’s parameter, local variable, variable in a pattern-matching case clause, or variable in a sequence comprehension.
  • JavaScript & TypeScript
    • Extract and convert React component - Use the new Extract Component refactoring to create a new React component, by extracting the JSX code from the render method of an existing one. You can also сonvert React class components into functional components, and vice versa, by using new intentions.
    • Find unused code - You can now find unused JavaScript code (or TypeScript code) on your client-side, by using the new Code Coverage feature.
    • New integrations with Angular CLI - In IntelliJ IDEA 2018.2, you can add new features to your Angular app thanks to the integration with ng add.
    • New JavaScript and TypeScript intentions - Lots of new JavaScript and TypeScript intentions are now available when you press Alt+Enter: Implement interface, Create derived class, Implement members of an interface or abstract class, Generate cases for 'switch', and Iterate with 'for..of'.
  • Spring Integration
    • IntelliJ IDEA 2018.2 supports Spring Integration 5.0. There is also a new Spring Integration Diagram that visualizes the components in the system. The new diagram shows the gateways, channels, bridges, etc. that have been configured for the application using XML or Java annotations.
  • Spring Boot
    • Spring Runtime Beans diagram - In IntelliJ IDEA 2018.2, you can select the new Diagram Mode option and visualize the dependencies between runtime beans of a Spring Boot application.
    • Access HTTP requests mappings from the Run Dashboard - Manage your HTTP requests mappings from the Run Dashboard in IntelliJ IDEA 2018.2. After you run your application, select the request you need from the Mappings tab, and then either run your HTTP request straight away or open it in the editor-based REST client.
  • YAML
    • YAML code formatter - Now you can reformat YAML code with the Reformat Code action.
    • Smarter YAML with JSON Schemas - Code autocompletion now works for YAML data structures that have a JSON Schema file. IntelliJ IDEA automatically traces schemas from schemastore.org, and moreover, if you need to you can manually add and configure JSON schema files.
  • Database Tools
    • SQL log - Now you can use the console output to view every query that IntelliJ IDEA runs.
    • New SQL formatter - Now custom Code Style schemes can be used specifically for each data source. You can assign your Code Style schemes in the Options tab of the data source properties.
    • Running stored procedures - Now you can execute stored Oracle and PostgreSQL procedures in IntelliJ IDEA. You can either run a procedure by selecting the Execute action from the context menu of the procedure or by clicking the Run button in the toolbar when opening the source code.
    • Source code migrations - Now, it’s much easier to update the source code of any objects, you just double-click the objects and make changes, and then click Commit, and the migration dialog will preview the generated SQL code to update the source code.
  • Docker
    • Navigate from compose nodes and containers - The Docker plugin now lets you navigate from compose nodes and containers to the corresponding compose and dockerfile files.
    • Wrapping words in Docker logs - This update adds a new Use Soft Wraps action for wrapping words in Docker logs. The new action is available via the gutter icon in the Log tab of the Docker Tool Window.
    • New Context folder field - Now you can specify the base directory for executing a Docker build command for a dockerfile. To do this, use the new Context folder field in the Docker run configuration. By default, the Context folder field is set to the parent folder of the specified dockerfile.
  • File Watcher plugin
    • Global file watchers - You can now store the configured File Watchers in the IDE settings and use them in different projects, as it’s now possible to set a Global File Watcher and not just one per-project, as it was before. This will help to reduce setup redundancy for developers working with many projects.
IntelliJ IDEA 2018.2
Preview data flow information in the editor

IntelliJ IDEA

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