Generic Arithmetic – C# Template Extension

Publisher

Juste Tools

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Overview

[Website] [Documentation] [Public API]

Arithmetic and comparison operations in generic C# classes. Works with any numeric or operator-enabled type, with no additional setup required.

Built-in computators cover all Unity numeric and vector types; a Roslyn source generator adds AOT-safe support for custom types.

Features

• Full operator coverage: all C# arithmetic (+, -, *, /, %), bitwise (&, |, ^), unary, shift, and comparison operators, plus boolean evaluation (operator true / operator false)
• Any numeric or operator-enabled type: built-in computators cover int, float, double, long, Vector2, Vector3, and all other Unity numeric and vector types; custom types are supported via source generator or manual computators
• Two usage styles: wrap values in Computable<T> to use standard C# operator syntax inline, or call Calculate<TResult> and Evaluate static methods directly for explicit result-type control and cross-type operations
• Source generator: the [GenerateComputators] assembly-level attribute generates AOT-safe computators at compile time; the recommended approach for IL2CPP builds
• Manual computators: extend BinaryCalculator, UnaryCalculator, BinaryEvaluator, or UnaryEvaluator for full control over how each operation is implemented; discovered automatically at startup, no registration required
• Try methods: non-throwing variants of every Calculate<T> and Evaluate method return false instead of throwing when an operation is not supported for the given types
• Configurable fallback: choose Throw, Dynamic, or Expression behavior for types without a registered computator, set per-project in the Configuration inspector
• Editor tooling: bulk tests window to run all registered computators against a predefined value set and review color-coded results; creator tool to generate manual computator scripts from a window

Content

• Computable<T> struct: lightweight value wrapper exposing all operators directly; implicit conversions to/from T and cross-type From / To casting
• Calculate<TResult> and Evaluate static classes: method-call API for binary and unary operations with explicit result types; each has a nested Try class for non-throwing access
• Computator system: built-in computators for all Unity numeric and vector types; [GenerateComputators] Roslyn source generator; four abstract base classes (BinaryCalculator, UnaryCalculator, BinaryEvaluator, UnaryEvaluator) for manual implementation
• Configuration inspector: per-project fallback strategy and view of all registered built-in and user computators
• Tests: NUnit test suite and a bulk tests window covering all computator type combinations
• Demo: a benchmark scene comparing non-generic, naive generic, Computable<T>, and Calculate<T> approaches

Requirements

Unity 6.0 or later