S3L0010: Keyword types¶

int, string, bool — the C# keyword wherever one exists.

What it reports¶

A framework type name where a C# keyword exists — Boolean, Byte, SByte, Char, Decimal, Double, Single, Int16, UInt16, Int32, UInt32, Int64, UInt64, Object, String — written plain (Int32), qualified (System.String), as the receiver of a member access (String.Concat) or through a using alias of one of them: Use 'int' rather than 'Int32'. This is IDE0049, which a command-line build does not run, carried as a rule of the SDK.

What it leaves alone¶

var, using directives, attribute arguments and nameof(…).

Why¶

The guidelines ask for the keywords: one spelling of each type across the fleet.

How to fix¶

Write the keyword: string.Concat, int.Parse. The code fix does it; Fix All applies it to a document, project or solution.

Suppressing it¶

Fix the code rather than silence the rule: the rule is part of the standard every Snail repository keeps. Where one place truly must differ, suppress that place and say why:

[SuppressMessage("Snail", "S3L0010:Keyword types", Justification = "<why this place differs>")]

A NoWarn in a project or props file would hide the rule from every new line too; the conformance check reports one as migration debt (S3LC0017).