Java Autofill Arguments

A Visual Studio Code extension that automatically fills Java method call arguments based on parameter names.

Features

• Auto-fill method arguments with parameter names
• Integration with VS Code code completion
• Keyboard shortcut support (Ctrl+Alt+O / Cmd+Alt+O)
• Context menu integration
• Works with Red Hat Java Language Support for better parameter resolution

Usage

Fill Arguments with Shortcut Key

1. Open a Java source file
2. Place the cursor inside a method call (between the parentheses)
3. Press Ctrl+Alt+O (Windows/Linux) or Cmd+Alt+O (macOS)
4. The method arguments will be filled with parameter names

Fill Arguments via Context Menu

1. Open a Java source file
2. Right-click inside a method call
3. Select tlcsdm → Fill Method Arguments

Fill Arguments via Command Palette

1. Open a Java source file
2. Place the cursor inside a method call
3. Open Command Palette (Ctrl+Shift+P / Cmd+Shift+P)
4. Search for "Fill Method Arguments"
5. Press Enter

Using Code Completion

1. Open a Java source file
2. Type a method call and the opening parenthesis
3. The completion list will show "Fill all arguments" option
4. Select it to insert all parameter names as arguments

Example

Before:

public void example() {
    someMethod(|); // cursor here
}

After pressing Ctrl+Alt+O:

public void example() {
    someMethod(param1, param2, param3);
}

Configuration

Configure the behavior through VS Code settings:

Setting	Description	Default
tlcsdm.autofill.enableCompletion	Enable argument suggestions in code completion	true
tlcsdm.autofill.useParameterNames	Use parameter names as argument suggestions when available	true
tlcsdm.autofill.fallbackToTypeName	Use type names as fallback when parameter names are not available	true

Requirements

• For best results, install the Language Support for Java(TM) by Red Hat extension

Installation

From VS Code Marketplace

1. Open VS Code
2. Go to Extensions (Ctrl+Shift+X)
3. Search for "Tlcsdm Java Autofill Arguments"
4. Click Install

From VSIX File

1. Download the .vsix file from Releases
2. In VS Code, open Command Palette (Ctrl+Shift+P)
3. Search for "Extensions: Install from VSIX..."
4. Select the downloaded .vsix file

From Jenkins

Download from Jenkins

Build

This project uses TypeScript and npm (Node.js 22).

# Install dependencies
npm install

# Compile
npm run compile

# Watch mode (for development)
npm run watch

# Lint
npm run lint

# Package
npx @vscode/vsce package

# Test
npm run test

Related Projects

• eclipse-autofill-arguments - The Eclipse version of this plugin

License

This project is licensed under the MIT License - see the LICENSE file for details.