C0 extension for VSCode

This provides IDE features for C0, such as code completion, parse errors/typechecking errors, go-to-definition, etc. A local installation of C0 is not necessary

Installation

Simply click "install" on the VSCode Marketplace

For more information on getting started with this extension at CMU for 15-122, see this presentation

Screenshots

View documentation hints, function signature help. It will automatically appear when calling a function, as well as when you hover over a function name or view it in the code completion window.

Errors are automatically displayed

Code completions are invoked using CTRL-SPACE (not command)

Go-to definition/declaration (CMD/CTRL + click)

Issues

If you run into any problems with the extension, have a feature request, or have any other feedback, please let us know on our issues page

Usage

The extension will activate when opening a C0/C1 file. To select the C0 theme, press CMD+SHIFT+P or CTRL+SHIFT+P, type "color theme", and select C0-light or C0-dark

To activate code completion, press CTRL-SPACE. To go to the definition of something, CMD+click or CTRL+click on it.

Multi-file projects

If the file README.txt exists for your project, then the extension will use lines starting with % cc0 to figure out in what order the files should be compiled. You don't need to do anything further.

Otherwise you should provide a project.txt file in the main directory of your project. It should be a list of the files in the order you would compile them, separated by spaces. If there are multiple ways to compile your project, then you should list each way on a different line. Example:

b.c0 a.c0 
b.c0 b-test.c0 

The extension will look for project.txt/README.txt first in the same directory as the current source file, one directory above that, and then in the workspace root.

Features

• View parse and typechecking errors as you type
• View a function/variable/struct field's type by hovering over it
• CTRL-SPACE will suggest variables which are in scope, function names, and struct field names
• Command/Ctrl-click to go to a definition
• Signature and parameter hints
• Full support for C0 standard library
• Full support for all C0/C1 features
• Highlighting for C0-specific features along with 122-specific files such as clac and c0 bytecode
• New C0-specific themes

Contributing

See CONTRIBUTING.md in the repository's root directory