GitHub – microsoft/qsharp-compiler: Q# compiler, command line tool, and Q# language server

GitHub – microsoft/qsharp-compiler: Q# compiler, command line tool, and Q# language server

Microsoft Quantum Development Kit:
Q # Compiler and Language Server

Welcome to the Microsoft Quantum Development Kit!

This repository includes the Q # compiler consisted of in the Quantum Development Kit, along with the Q # language server consisted of in our Visual Studio extension and our Visual Studio Code extension To find out more associated to the language server procedure have a look at this repository These extensions offer the IDE combination for Q #, and can be discovered on this repository.

The Q # compiler is dispersed as a NuGet bundle, and the CompilationLoader class exposes the various setup alternatives for constructing a collection. The Q # command line compiler is consisted of as a tool in the Microsoft.Quantum.Sdk and offers an extensibility system for collection actions. See the list of task residential or commercial properties to learn more about possible setup choices for Q # tasks.

Q # executables can be put together into an LLVM-based Quantum Intermediate Representation (QIR) More information on that ability and how to utilize it can be discovered in this README

New to Quantum?

See the intro to quantum computing supplied with the Quantum Development Kit.

Installing the Quantum Development Kit

If you’re aiming to utilize Q # to compose quantum applications, please see the guidelines on how to start with utilizing the Quantum Development Kit consisting of the Q # compiler, language server, and advancement environment extensions.

Please see the setup guide for additional details on how to begin utilizing the Quantum Development Kit to establish quantum applications. You might likewise visit our Quantum repository, which provides a wide array of samples on how to compose quantum based programs.

Building from Source

Before you can develop the source code on this repository and begin adding to the Q # compiler and extensions you require to run the PowerShell script bootstrap.ps1 to establish your environment. We describe the PowerShell GitHub repository for guidelines on how to set up PowerShell. The script in specific creates the files that are required for structure based upon the design templates in this repository.

The Q # compiler and language server in this repository are constructed utilizing Internet Core Constructing the QsCompiler.sln( dotnet construct QsCompiler.sln) develops the Q # compiler and language server. To evaluate your modifications to the compiler, open the task file of a Q # job that utilizes the current variation of the Microsoft.Quantum.Sdk in a full-screen editor. You can validate the Sdk variation that the task is utilizing by taking a look at the very first line in the job file. You might require to modify that line to upgrade to the most recent variation, and change your task as required. Validate that the job is constructing properly utilizing that variation by carrying out the command

 dotnet construct MyProject.csproj 

If your task constructs effectively, modify the job file in the full-screen editor to include the following job home, changing the course as required:

dotnet$( MSBuildThisFileDirectory) src/QsCompiler/CommandLineTool/ bin/$( Configuration)/ net6.0/ qsc.dll “>

dotnet $ (MSBuildThisFileDirectory) src/QsCompiler/CommandLineTool/ bin/ $( Configuration)/ net6.0/ qsc.dll
To verify that certainly the in your area constructed compiler variation is utilized, you can modify Run in your regional Program.cs file to consist of the following line:

< div dir=" automobile" data-snippet-clipboard-copy-content=" personal fixed int Run( Func put together, T choices) where T: Options [Console.WriteLine(” Hi from your in your area constructed compiler!”); …” >

 personal fixed int Run( Func put together , T choices) where T: Options [ Console WriteLine (" Hi from your in your area developed compiler!" ); ...

From the root of this repository, develop the compiler by carrying out the 2 commands

 dotnet tidy QsCompiler.sln dotnet construct QsCompiler.sln -c Debug 

Build the Q # task as normal by conjuring up the following 2 commands:

 dotnet tidy MyProject.csproj dotnet construct MyProject.csproj- c Debug

In the develop output you must now see the print declaration placed above. You can likewise carry out the task that has actually now been constructed utilizing your regional source code variation of the compiler by carrying out the command

 dotnet run-- task MyProject.csproj- c Debug

If you modify theMicrosoft.Quantum.Sdk as part of your modifications, you will require to load it utilizing NuGet 5.8.1 Download it and utilize it to load the Sdk by carrying out the following commands from the root of this repository:

 dotnet release src/QuantumSdk/Tools/ Tools.sln- c Debug dotnet release src/QsCompiler/CommandLineTool/ CommandLineTool.csproj- c Debug dotnet release src/QsFmt/App/ App.fsproj- c Debug nuget.exe pack src/QuantumSdk/QuantumSdk. nuspec- Version 1.0.0 -Properties Configuration= Debug 

Move the created.nupkg file into your regional NuGet folder. You can now utilize the bundle to develop any Q # job by opening the job file in a full-screen editor, and modifying the Sdk variation number in the very first line to be

< div data-snippet-clipboard-copy-content="” >

If you are operating in Visual Studio, you might require to discharge and after that refill the task. When you construct the job it will now utilize your in your area developed variation of the Microsoft.Quantum.Sdk.

For directions on how to construct and debug the Visual Studio Code extension have a look at this file Structure and debugging the Visual Studio extension needs Visual Studio2019 Open the matching option and set the QSharpVsix job as start-up job, then launch and debug the extension as typical. The Visual Studio extension is constructed on the Internet Framework 4.7.2 that features Visual Studio2019 You can quickly get it through the Visual Studio Installer.

We advise uninstalling any other Q # extensions when dealing with the extensions in this repository.

Tips for utilizing VSCode

This repository consists of both C# and F# code, too as.csproj and.fsproj tasks arranging that code. The suggested extensions for connecting with these language types are the Microsoft C# extension powered by OmniSharp and the Ionide FSharp extension Numerous of the jobs in each language reveal reliances on the other language, which can trigger mistakes dealing with namespaces even when the builds prosper without mistakes. To fix these mistakes in C# tasks that depend upon F# resources, guarantee the MSBuild used by Omnisharp originates from a set up of Visual Studio or Visual Studio Community edition with assistance for F# set up. To fix mistakes loading.csproj files in the Ionide extension, utilize the “Change Workspace or Solution” alternative in the F#: Solution Explorer to pick the leading level “qsharp-compiler” folder. This will permit Ionide to discover just the.fsproj jobs rather of attempting to load both.csproj and.fsproj noted in the service files.

Build Status

branch status
primary Build Status


If you have feedback about the material in this repository, please let us understand by submitting a brand-new concern! If you have feedback about some other part of the Microsoft Quantum Development Kit, please see the contribution guide to find out more.

Reporting Security Issues

Security problems and bugs must be reported independently, through e-mail, to the Microsoft Security Response Center (MSRC) at You ought to get an action within 24 hours. If for some factor you do not, please follow up by means of e-mail to guarantee we got your initial message. Additional info, consisting of the MSRC PGP essential, can be discovered in the Security TechCenter

Legal and Licensing


By default, sending telemetry is handicapped for all code in this repository, however it can be made it possible for through collection flag. Our delivered extensions that are constructed based upon the code in this repository assistance gathering telemetry. Because case, opt-in or opt-out works by means of the matching setting in Visual Studio and Visual Studio Code, and the telemetry we gather falls under the Microsoft Privacy Statement

Data Collection

The software application might gather info about you and your usage of the software application and send it to Microsoft. Microsoft might utilize this details to supply services and enhance our product or services. You might shut off the telemetry as explained in the repository. There are likewise some functions in the software application that might allow you and Microsoft to gather information from users of your applications. If you utilize these functions, you should adhere to appropriate law, consisting of offering proper notifications to users of your applications together with a copy of Microsoft’s personal privacy declaration. Our personal privacy declaration lies at You can find out more about information collection and usage in the assistance documents and our personal privacy declaration. Your usage of the software application runs as your grant these practices.


This job invites contributions and recommendations. A lot of contributions need you to accept a Contributor License Agreement (CLA) stating that you can, and in fact do, give us the rights to utilize your contribution. For information, go to

When you send a pull demand, a CLA-bot will immediately identify whether you require to offer a CLA and embellish the PR properly (e.g., label, remark). Merely follow the directions offered by the bot. You will just require to do this as soon as throughout all repos utilizing our CLA.

This job has actually embraced the Microsoft Open Source Code of Conduct To learn more see the Code of Conduct FAQ or contact with any extra concerns or remarks.

For more information, please see


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