IDE0062Language rules (modifier preferences)

Make local function static

Description

This style rule flags local functions that can be marked static. Marking them as static prevents local variables from being captured, which would result in a memory allocation.

Example

// csharp_prefer_static_local_function = true
void M()
{
    Hello();
    static void Hello()
    {
        Console.WriteLine("Hello");
    }
}

// csharp_prefer_static_local_function = false
void M()
{
    Hello();
    void Hello()
    {
        Console.WriteLine("Hello");
    }
}

Configurable options

Vote for the value each option should take in the generated .editorconfig.

csharp_prefer_static_local_function

default: true:suggestion

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