Struct can be made 'readonly' (IDE0250)
Property | Value |
---|---|
Rule ID | IDE0250 |
Title | Struct can be made 'readonly' |
Category | Style |
Subcategory | Unnecessary code rules (modifier preferences) |
Applicable languages | C# |
Options | csharp_style_prefer_readonly_struct |
Overview
This rule flags structs that aren't marked readonly
when all their members are marked readonly
.
Options
Options specify the behavior that you want the rule to enforce. For information about configuring options, see Option format.
csharp_style_prefer_readonly_struct
Property | Value | Description |
---|---|---|
Option name | csharp_style_prefer_readonly_struct | |
Option values | true |
Prefer to make a struct readonly when all its fields are readonly . |
false |
Disables the rule. | |
Default option value | true |
Example
// Code with violations.
struct S
{
readonly int i;
}
// Fixed code.
readonly struct S
{
readonly int i;
}
Suppress a warning
If you want to suppress only a single violation, add preprocessor directives to your source file to disable and then re-enable the rule.
#pragma warning disable IDE0250
// The code that's violating the rule is on this line.
#pragma warning restore IDE0250
To disable the rule for a file, folder, or project, set its severity to none
in the configuration file.
[*.{cs,vb}]
dotnet_diagnostic.IDE0250.severity = none
To disable all of the code-style rules, set the severity for the category Style
to none
in the configuration file.
[*.{cs,vb}]
dotnet_analyzer_diagnostic.category-Style.severity = none
For more information, see How to suppress code analysis warnings.
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