demo

Marmot Postfix Completion

(The poor man's Rider/ReSharper alternative)

Visual Studio has always lacked a free postfix extension. After watching a pointless marmot video that was just too ridiculous, I decided to "vibe code" this project and see what happens.

This extension provides a powerful set of postfix templates for C# developers who want the efficiency of JetBrains Rider or ReSharper without the premium subscription cost.

Supported Version: Microsoft Visual Studio Community 2022 (64-bit) - Version 17.13.1 Reference: Based on ReSharper's Postfix Templates.

Simply type . after an expression followed by a shortcut to trigger the transformation:

Shortcut	Description	Example
.arg	Surrounds expression with invocation	`Method(expr)`
.await	Awaits expressions of 'Task' type	`await expr`
.cast	Surrounds expression with cast	`((SomeType) expr)`
.else	Checks boolean expression to be 'false'	`if (!expr)`
.field	Introduces field for expression	`_field = expr;`
.for	Iterates over collection with index	`for (var i = 0; i < xs.Length; i++)`
.foreach	Iterates over enumerable collection	`foreach (var x in expr)`
.forr	Iterates over collection in reverse with index	`for (var i = xs.Length-1; i >= 0; i--)`
.if	Checks boolean expression to be 'true'	`if (expr)`
.inject	Introduces primary constructor parameter of type (C# 12)	`class Component(IDependency dependency)`
.lock	Surrounds expression with lock block	`lock (expr)`
.new	Produces instantiation expression for type	`new SomeType()`
.not	Negates boolean expression	`!expr`
.notnull	Checks expression to be not-null	`if (expr != null)`
.null	Checks expression to be null	`if (expr == null)`
.par	Parenthesizes current expression	`(expr)`
.parse	Parses string as value of some type	`int.Parse(expr)`
.prop	Introduces property for expression	`Property = expr;`
.return	Returns expression from current function	`return expr;`
.sel	Selects expression in editor	`\|selected + expression\|`
.switch	Produces switch statement	`switch (expr)`
.throw	Throws expression of 'Exception' type	`throw expr;`
.to	Assigns current expression to some variable	`lvalue = expr;`
.tryparse	Parses string as value of some type	`int.TryParse(expr, out value)`
.typeof	Wraps type usage with typeof() expression	`typeof(TExpr)`
.using	Wraps resource with using statement	`using (expr)`
.var	Introduces variable for expression	`var x = expr;`
.while	Iterating while boolean statement is 'true'	`while (expr)`
.yield	Yields value from iterator method	`yield return expr;`

Development Troubleshooting

If you encounter vs instance cache issues during development or installation, navigate to the following folder: C:\Users\YOURNAME\AppData\Local\Microsoft\VisualStudio\XXXIDExp

Delete these two folders and rebuild the project:

ComponentModelCache
Extensions

功能介紹

因為 visual studio 一直都沒有 postfix 的免錢外掛

剛好看土撥鼠廢片覺得很瞎, 就 vibe coding 做看看

Marmot Postfix Completion (沒錢買 Rider/Resharper 免費仔用的)

支援版本 Microsoft Visual Studio Community 2022 (64-bit) - Version 17.13.1

參照 ReSharper 的功能 Postfix_Templates

只需在表達式後方輸入 . 並加上縮寫，即可觸發轉換：

快捷鍵 (Shortcut)	功能描述 (Description)	範例 (Example)
.arg	將表達式作為參數包裝在方法中	`Method(expr)`
.await	自動等待 Task 型別表達式	`await expr`
.cast	將表達式進行強制轉型包裝	`((SomeType) expr)`
.else	檢查布林值是否為 false	`if (!expr)`
.field	將表達式引入為欄位	`_field = expr;`
.for	建立以索引遞增的 for 迴圈	`for (var i = 0; i < xs.Length; i++)`
.foreach	建立集合的疊代迴圈	`foreach (var x in expr)`
.forr	建立以索引遞減的反向 for 迴圈	`for (var i = xs.Length-1; i >= 0; i--)`
.if	檢查布林值是否為 true	`if (expr)`
.inject	引入 Primary Constructor 參數 (C# 12)	`class Component(IDependency dependency)`
.lock	將表達式包裝在 lock 區塊中	`lock (expr)`
.new	產生型別的實例化表達式	`new SomeType()`
.not	邏輯反轉 (否定)	`!expr`
.notnull	檢查表達式是否非 Null	`if (expr != null)`
.null	檢查表達式是否為 Null	`if (expr == null)`
.par	將當前表達式加上括號	`(expr)`
.parse	將字串解析為特定型別數值	`int.Parse(expr)`
.prop	將表達式引入為屬性	`Property = expr;`
.return	將表達式從當前函數傳回	`return expr;`
.sel	在編輯器中自動選取該表達式	`\|selected + expression\|`
.switch	產生 switch 敘述區塊	`switch (expr)`
.throw	拋出異常表達式	`throw expr;`
.to	將表達式賦值給特定變數	`lvalue = expr;`
.tryparse	嘗試解析字串並輸出數值	`int.TryParse(expr, out value)`
.typeof	將型別包裝在 typeof() 中	`typeof(TExpr)`
.using	將資源包裝在 using 敘述中	`using (expr)`
.var	為表達式引入變數宣告	`var x = expr;`
.while	當布林值為 true 時執行迴圈	`while (expr)`
.yield	從反覆運算器方法傳回數值	`yield return expr;`

開發問題

如果遇到 vs instance cache 的話可以打開這個資料夾 C:\Users\YOURNAME\AppData\Local\Microsoft\VisualStudio\XXXIDExp

刪除這兩個資料夾重新編譯即可 ComponentModelCache Extensions

Marmot Postfix Completion

喇賽人

Marmot Postfix Completion

Development Troubleshooting

功能介紹

開發問題