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  • Book Overview & Buying Implementing Domain-Specific Languages with Xtext and Xtend
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Implementing Domain-Specific Languages with Xtext and Xtend

Implementing Domain-Specific Languages with Xtext and Xtend - Second Edition

By : Lorenzo Bettini
4.8 (6)
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Implementing Domain-Specific Languages with Xtext and Xtend

Implementing Domain-Specific Languages with Xtext and Xtend

4.8 (6)
By: Lorenzo Bettini
Buy this Book

Overview of this book

Xtext is an open source Eclipse framework for implementing domain-specific languages together with IDE functionalities. It lets you implement languages really quickly; most of all, it covers all aspects of a complete language infrastructure, including the parser, code generator, interpreter, and more. This book will enable you to implement Domain Specific Languages (DSL) efficiently, together with their IDE tooling, with Xtext and Xtend. Opening with brief coverage of Xtext features involved in DSL implementation, including integration in an IDE, the book will then introduce you to Xtend as this language will be used in all the examples throughout the book. You will then explore the typical programming development workflow with Xtext when we modify the grammar of the DSL. Further, the Xtend programming language (a fully-featured Java-like language tightly integrated with Java) will be introduced. We then explain the main concepts of Xtext, such as validation, code generation, and customizations of runtime and UI aspects. You will have learned how to test a DSL implemented in Xtext with JUnit and will progress to advanced concepts such as type checking and scoping. You will then integrate the typical Continuous Integration systems built in to Xtext DSLs and familiarize yourself with Xbase. By the end of the book, you will manually maintain the EMF model for an Xtext DSL and will see how an Xtext DSL can also be used in IntelliJ.
Table of Contents (18 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Preface to the second edition
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Preface to the second edition
Lock Free Chapter
1
1. Implementing a DSL
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1. Implementing a DSL
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Domain-Specific Languages
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Implementing a DSL
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IDE integration
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Enter Xtext
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The aim of this book
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Summary
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2. Creating Your First Xtext Language
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2. Creating Your First Xtext Language
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A DSL for entities
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The Xtext generator
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The Eclipse Modeling Framework (EMF)
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Improvements to the DSL
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Summary
3
3. Working with the Xtend Programming Language
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3. Working with the Xtend Programming Language
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An introduction to Xtend
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Xtend – a better Java with less "noise"
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Additional operators
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Summary
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4. Validation
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4. Validation
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Validation in Xtext
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Quickfixes
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Summary
5
5. Code Generation
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5. Code Generation
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Introduction to code generation
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Writing a code generator in Xtend
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Integration with the Eclipse build mechanism
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Standalone command-line compiler
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Summary
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6. Customizing Xtext Components
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6. Customizing Xtext Components
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Dependency injection
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Google Guice in Xtext
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Customizations of IDE concepts
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Custom formatting
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Other customizations
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Summary
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7. Testing
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7. Testing
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Introduction to testing
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JUnit 4
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The ISetup interface
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Implementing tests for your DSL
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Test suite
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Testing the UI
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Testing and modularity
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Clean code
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Summary
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8. An Expression Language
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8. An Expression Language
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The Expressions DSL
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The grammar for the Expressions DSL
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Left recursive grammars
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Forward references
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Typing expressions
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Writing an interpreter
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Optimizations and fine tuning
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Summary
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9. Type Checking
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9. Type Checking
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SmallJava
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First validation rules
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Type checking
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Improving the UI
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Summary
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10. Scoping
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10. Scoping
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Cross-reference resolution in Xtext
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Custom scoping
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Global scoping
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Providing a library
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Classes of the same package
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Dealing with super
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What to put in the index?
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Additional automatic features
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Providing a project wizard
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Summary
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11. Continuous Integration
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11. Continuous Integration
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Eclipse features and p2 repositories
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Release engineering
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Introduction to Maven/Tycho
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Using the Xtext project wizard
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Continuous Integration systems
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Your DSL editor on the Web
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IntelliJ and Gradle
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Pitfalls with Maven/Tycho
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Concluding remarks
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Summary
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12. Xbase
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12. Xbase
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Introduction to Xbase
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The Expressions DSL with Xbase
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The Entities DSL with Xbase
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Additional Xbase features
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Summary
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13. Advanced Topics
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13. Advanced Topics
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Creating an Xtext project from an Ecore model
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Switching to an imported Ecore model
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Xcore
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Extending Xbase
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Summary
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14. Conclusions
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14. Conclusions
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A. Bibliography
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A. Bibliography
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Index
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Index

Customer support

Now that you are the proud owner of a Packt book, we have a number of things to help you to get the most from your purchase.

Downloading the example code

You can download the example code files from your account at http://www.packtpub.com for all the Packt Publishing books you have purchased. If you purchased this book elsewhere, you can visit http://www.packtpub.com/support and register to have the files e-mailed directly to you.

The example code for this book is also available on a Git repository at

https://github.com/LorenzoBettini/packtpub-xtext-book-2nd-examples.

We suggest you to monitor this git repository, since it will always contain the most up-to-date version of the examples.

Errata

Although we have taken every care to ensure the accuracy of our content, mistakes do happen. If you find a mistake in one of our books—maybe a mistake in the text or the code—we would be grateful if you could report this to us. By doing so, you can save other readers from frustration and help us improve subsequent versions of this book. If you find any errata, please report them by visiting http://www.packtpub.com/submit-errata, selecting your book, clicking on the Errata Submission Form link, and entering the details of your errata. Once your errata are verified, your submission will be accepted and the errata will be uploaded to our website or added to any list of existing errata under the Errata section of that title.

To view the previously submitted errata, go to https://www.packtpub.com/books/content/support and enter the name of the book in the search field. The required information will appear under the Errata section.

The Errata is also available on the Git repository of the examples of the book https://github.com/LorenzoBettini/packtpub-xtext-book-2nd-examples.

Piracy

Piracy of copyrighted material on the Internet is an ongoing problem across all media. At Packt, we take the protection of our copyright and licenses very seriously. If you come across any illegal copies of our works in any form on the Internet, please provide us with the location address or website name immediately so that we can pursue a remedy.

Please contact us at with a link to the suspected pirated material.

We appreciate your help in protecting our authors and our ability to bring you valuable content.

Questions

If you have a problem with any aspect of this book, you can contact us at , and we will do our best to address the problem.

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