Slint Updater

A syntax-aware migration tool that automatically upgrades .slint files to the latest Slint language syntax.

As the Slint language evolves, some syntax patterns are deprecated in favor of new ones. This tool parses your .slint files using the Slint compiler and applies transformations to migrate deprecated patterns.

Installation

bash

cargo install slint-updater

Usage

bash

# Preview changes (prints to stdout)
slint-updater file.slint

# Apply changes in-place
slint-updater -i file.slint

# Update multiple files
slint-updater -i src/**/*.slint

# Move property declarations to component root
slint-updater -i --move-declarations file.slint

Options

Flag	Description
`-i, --inline`	Modify files in-place instead of printing to stdout
`--move-declarations`	Move all property declarations to the root of each component

Supported File Types

.slint files
.rs files containing slint! macros
.md files with ```slint code blocks

Transformations

Active Transforms

Enum renames:

PointerEventButton.none → PointerEventButton.other
Keys.* → Key.*

Experimental Transforms

These transforms handle migrations from older Slint syntax versions:

Component declaration syntax:

slint,no-test

// Old syntax
MyComponent := Rectangle { }

// New syntax
component MyComponent inherits Rectangle { }

Property visibility:

slint,no-test

// Old syntax
property <int> count: 0;

// New syntax
in-out property <int> count: 0;

Struct declaration:

slint,no-test

// Old syntax
MyStruct := { field: int }

// New syntax
struct MyStruct { field: int }

Examples

Update all .slint files in a project:

bash

slint-updater -i $(find . -name "*.slint")

Preview changes before applying:

bash

slint-updater file.slint | diff file.slint -

Update Slint code embedded in Rust:

bash

slint-updater -i src/**/*.rs