#192 · Programming Language Tools Developer Tool

Swift Inspector

Inspect Swift source for maintainability, readability, safety, and complexity risks such as force unwraps, force try, deep nesting, long functions, weak naming, and duplicate code.

Developer Input

Swift file or snippet

Swift source code

import Foundation

class ProfileService {
    var user: String?
    func load() {
        let name = user!
        try! riskyOperation()
        print(name)
    }
}

Inspection depth

Maximum function lines

lines

Trim whitespace Preserve multiple empty lines Enable strict analysis Auto-run while typing

How to use this developer tool

Paste Swift source code.
Select the inspection depth.
Set the maximum preferred function length.
Run the inspection and review scores, warnings, and recommendations.

What this developer tool does

The inspector calculates structural metrics and flags common Swift safety and maintainability risks with line references and practical recommendations.

Parse declarations → count nesting and functions → detect force operations and naming issues → locate duplicate lines → score quality → generate recommendations.

Findings are heuristic and intended for fast review. Compiler, SwiftLint, and runtime profiling remain the authoritative checks.

Example

Input: code using user! and try!. Output: safety warnings with line numbers and recommendations to use optional binding and do/catch.

Tips for better output

Resolve force unwrap warnings before style warnings.
Split long functions around distinct responsibilities.
Use explicit access control for reusable modules.

FAQ

How do I find force unwraps in Swift code online?

Paste the code and run the inspector. Each likely force unwrap is reported with its source line.

Can this Swift inspector detect try! and as! usage?

Yes. It detects common force operations including try! and as! and classifies them as safety risks.

How is the Swift code quality score calculated?

The score starts at 100 and is reduced for safety risks, deep nesting, long functions, duplicate statements, and naming issues.

Does the Swift inspector replace SwiftLint?

No. It provides fast browser-based heuristics, while SwiftLint offers project-aware rules and should remain part of a production workflow.

Can this tool inspect SwiftUI code?

Yes. It can inspect SwiftUI source text for structural and safety patterns, although it does not build or execute the app.

Related developer tools

TypeScript Checker TypeScript Generator TypeScript Formatter TypeScript Converter

Inspection categories

Category	Checks
Safety	!, try!, as!
Complexity	nesting and function length
Quality	naming, duplication, access control

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