.NET Compiler Developer SDK

The .NET Compiler Developer SDK is an extension to the standard C# experience in VSCode, providing tools for working with the Roslyn compiler.

Features

Syntax Visualizer

Visualize the syntax in a C# file live, as you type, and navigate around the structure interactively.

IOperation Visualizer

Visualize the symbol and IOperation trees in a C# file live, as you type, and navigate around the structure interactively.

IL and C# Decompilation

Visualize the IL and decompiled C# for your code live in the editor. The decompiled C# view shows a much lower-level than most C#: for example, async state machines are decompiled

Big thanks to @ashmind and Sharplab.io for both the idea and some of the settings for ICsharpCode.Decompiler!

Requirements

This extension depends on the C# extension.

Extension Settings

• "compilerdevelopersdk.enableSyntaxVisualizer" - Turn on or off the C# Syntax Visualizer (defaults to on).
• "compilerdevelopersdk.enableIOperationVisualizer" - Turn on or off the C# IOperation Visualizer (defaults to on).
• "compilerdevelopersdk.syncCursorWithTree" - Reveal the tree node of the cursor location when clicking in a C# file (defaults to on).
• "compilerdevelopersdk.verboseLogging" - Turn on or off extra logging for troubleshooting purposes (defaults to off).

Known Issues

• Top-level statements reveal in the IOperation tree isn't always as specific as it could be.
• Attempting to use the IL visualizer outside of a method or type causes an error.
• Metadata from references that aren't on disk (like other projects) is not found during decompilation.

Release Notes

0.4.4

• Update Roslyn dependencies to fix compat with C# extension version 2.41.

0.4.3

• Skip encoding paths to fix #8.

0.4.2

• Add System.Text.Json property attributes to model types to react to breaking changes in the C# extension.

0.4.1

• Update to the latest Roslyn versions
• Always send absolute paths to react to a Roslyn change.

0.4.0

• Add initial build of IL Visualization

0.3.0

• Update to react to breaking changes in the C# extension APIs.

0.2.0

• Added IOperation Visualization support. You can now view IOperation nodes similarly to how you view syntax nodes, with a new dedicated view in the same panel.
• Reorganized the settings, and moved location highlighting from a setting to a toggleable action for each tree visualizer.
• Removed the properties pane. You can now view both syntax properties and IOperation properties as a subnode of a given syntax or IOperation node.
• Fixed several ID tracking bugs.
• Fixed several position tracking annoyances while typing.

0.1.2-prerelease

• b4cda2a Implement feature request: sync the cursor position when clicking in the tree view and reveal the location if offscreen.
• b804ffb Add verbose logging option.
• 10ae84f Only fire a text document changed tree refresh if the document is a C# file.

0.1.1

• 4c2e3f3 Correct conditional display of the syntax visualizer, and contribute the setting for disabling it.
• d60da59 Only request the node at the current location if the file type is C#.
• 1e5f735 Add extension startup logging.

0.1.0

• First prerelease