icsharpcode/ILSpy

Pointer arithmetic compound assignments

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#947 创建于 2017年10月30日

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 (2 评论) (0 反应) (0 负责人)C# (25,162 star) (3,645 fork)batch import
C#DecompilerEnhancementHelp Wanted

描述

We don't support code like this:

someStruct.PointerField += i;
int* x = someStruct.PointerField++;

I'm not sure if it's worth adding support for these constructs -- these are two quite complex features interacting with each other; and such code is quite rare.

贡献者指南

技术栈
csharp
领域
tooling
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
4
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
3-5 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
C# knowledgeunderstanding of pointer arithmeticfamiliarity with ILSpy's decompilation pipeline
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
15
研究方向
Investigate the ILSpy codebase to locate where compound assignment expressions are handled. Look at the existing support for pointer arithmetic (e.g., PointerArithmeticInstruction or similar) and see how it handles simple pointer arithmetic without assignment. Then, examine the expression tree or AST nodes for compound assignments (e.g., CompoundAssignmentExpression) to understand how to extend them to support pointer targets. Files likely involved include ICSharpCode.Decompiler/IL/ILInstruction.cs and related visitors. Check the existing tests for pointer arithmetic to ensure no regressions.