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[wasm][debugger] A draft of doc for describing debugger behavior. #62015

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Nov 30, 2021
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[wasm][debugger] A draft of doc for describing debugger behavior. #62015

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A draft of doc for describing debugger behaviour.
ilonatommy Nov 24, 2021
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ilonatommy Nov 24, 2021
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21 changes: 21 additions & 0 deletions docs/design/mono/debugger.md
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# WebAssembly Debugger

## Overview

The details of launching a Debugger session for a Blazor WebAssembly application is described [here](https://docs.microsoft.com/en-us/aspnet/core/blazor/debug?view=aspnetcore-6.0&tabs=visual-studio).

## Debugger Attributes
Web Assembly Debugger supports usage of following attributes:
- __System.Diagnostics.DebuggerHidden__

Decorating a method - results:
- Visual Studio Breakpoints: results in disabling all existing breakpoints in the method and no possibility to set new,enabled ones.
- Stepping In/Over: results in stepping over the line with method call.
- Call stack: method does not appear on the call stack, no access to method local variables is provided.

Decorating a method with a Debugger.Break() call inside:
- Running in the Debug mode: results in pausing the program on the line with the method call.
- Stepping In/Over: results in an additional stepping need to proceed to the next line.<br><br>
- __System.Diagnostics.DebuggerDisplay__
- __System.Diagnostics.DebuggerTypeProxy__
- ...