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GPC Language Tools

GPC Language Tools

zKiwiko

|
21 installs
| (0) | Free
GPC Language Tools for VSCode
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
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GPC Language Support for VS Code

A comprehensive Visual Studio Code extension for the Cronus Zen's GPC Scripting language, providing rich language features including syntax highlighting, intelligent code completion, error detection, and advanced code navigation.

Known Issues

  • Weird syntax error messages (blame ANTLR4)

Features

🎨 Syntax Highlighting

  • Rich syntax coloring
  • Keyword highlighting
  • Data type highlighting
  • String and comment highlighting
  • Number highlighting
  • Boolean highlighting

🧠 IntelliSense & Code Completion

  • Smart auto-completion for keywords, data types, and identifiers
  • Built-in function completion with parameter signatures and descriptions
  • User-defined function completion with parameter hints
  • Variable and constant completion with context awareness
  • Snippet support with parameter placeholders for functions

📖 Documentation & Help

  • Hover information showing detailed documentation for:
    • Built-in functions with descriptions and parameter info
    • User-defined functions with signatures
    • Variables and constants with type information
  • Signature help displaying parameter information while typing function calls
  • Parameter counting and active parameter highlighting

🔍 Code Navigation

  • Go to Definition - Navigate to function and variable declarations
  • Find All References - Locate all usages of symbols throughout your code
  • Document Symbols - Outline view showing:
    • Functions with parameter lists
    • Variables and constants
    • Hierarchical symbol organization

🎯 Inlay Hints (Configurable)

  • Parameter name hints displayed inline for better code readability
  • Function call annotations showing parameter names
  • Toggleable settings for users who prefer cleaner code view
  • Real-time updates when configuration changes

🚨 Error Detection & Diagnostics

  • Real-time syntax error detection as you type
  • Semantic analysis with two-pass compilation:
    • First pass: Collect all declarations (functions, variables, enums, arrays)
    • Second pass: Validate references and semantic correctness
  • Forward reference support - Use functions before they're defined
  • Comprehensive error messages with precise location information
  • Warning system for unused variables and other code quality issues

📝 Advanced Language Features

  • Intelligent parsing using ANTLR4 grammar
  • Caching system for improved performance
  • Built-in language constants recognition
  • Function validation with parameter count checking

⚙️ Configuration Options

The extension provides several customizable settings:

Inlay Hints Settings

  • gpc.inlayHints.enabled (boolean, default: true)

    • Master toggle for all inlay hints
    • Disable to hide all inline annotations
  • gpc.inlayHints.parameterNames (boolean, default: true)

    • Show parameter names in function calls
    • Example: get_val(input: XB1_LT) instead of get_val(XB1_LT)

Installation

  1. Open VS Code
  2. Go to Extensions (Ctrl+Shift+X)
  3. Search for "GPC Language Support"
  4. Click Install

Usage

Basic Usage

  1. Open any .gpc file
  2. Enjoy automatic syntax highlighting and language features
  3. Start typing to see intelligent code completion
  4. Hover over functions and variables for documentation

Code Completion

  • Type function names and see auto-completion with parameter hints
  • Use built-in snippets for common patterns
  • Navigate through parameters using Tab

Error Detection

  • Syntax errors are highlighted in red with squiggly underlines
  • Semantic errors show detailed error messages
  • Warnings appear for code quality issues

Navigation

  • F12 or Ctrl + Click - Go to Definition
  • Shift + F12 - Find All References
  • Ctrl + Shift + O - Go to Symbol in File

Configuration

VS Code Settings UI

  1. Open Settings (Ctrl + ,)
  2. Search for "gpc"
  3. Adjust the available options

settings.json Configuration

{
  "gpc.inlayHints.enabled": true,
  "gpc.inlayHints.parameterNames": true
}

Workspace-specific Settings

Create .vscode/settings.json in your project root:

{
  "gpc.inlayHints.enabled": false
}

GPC Language Support

This extension supports the complete GPC language specification including:

Development

Architecture

  • Language Server Protocol (LSP) implementation for robust language support
  • ANTLR4 grammar for precise parsing
  • Two-pass semantic analysis for forward reference support
  • Caching system for optimal performance
  • Modular design with separate parsing, completion, and feature modules

Contributing

Contributions and suggestions are welcome.

License

This project is licensed under the GNU General Public License v3.0 (GPL-3.0) - see the LICENSE.md file for details.

What this means:

  • ✅ Free to use - Use this extension for any purpose
  • ✅ Free to modify - Change the code to suit your needs
  • ✅ Free to distribute - Share the extension and your modifications
  • ⚠️ Copyleft - If you distribute modified versions, they must also be GPL-3.0 licensed
  • ⚠️ No warranty - Provided "as-is" without warranty of any kind

Copyright (C) 2025 zkiwiko

Changelog

Latest Features

  • ✅ Full syntax highlighting
  • ✅ IntelliSense with built-in function support
  • ✅ Real-time error detection
  • ✅ Hover documentation
  • ✅ Go to definition and find references
  • ✅ Configurable inlay hints
  • ✅ Document symbols and outline view
  • ✅ Signature help for function calls
  • ✅ Forward reference support
  • ✅ Comprehensive built-in function library
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