Roslyn - How can I get all references to a variable in the DiagnosticAnalyzer class?
I am currently trying to define code using Roslyn. I have a variable SyntaxNode
.
I would like to find all references of this variable in my class DiagnosticAnalyzer
. Unfortunately, the method SymbolFinder.FindReferencesAsync
requires a parameter Solution
, and if I know well, I cannot get the current solution from the class DiagnosticAnalyzer
.
How can I get all references to a variable in a class DiagnosticAnalyzer
?
I implemented a similar parser, the algorithm was as follows (it ran for ~ 31ms in a 2000+ doc, but almost always less than 10ms)
- Iterating through all nodes in
SemanticModel.GetRoot()
and collecting expressions and local decals - Get the character of the corresponding identifier
- Check if it implements
IDisposable
stores inHashSet1
if it does - Iterating through calls where the Dispose method is called
- Get symbol from Invocation, save to
HashSet2
- Diagnostics report in the first
SyntaxReference
characters found inHashSet1
but not inHashSet2
This works well, but unfortunately I don't know if there is a more efficient / cleaner way to do this. I can share parts of the code if you like.
A similar question with a little scatter
Find expression expressions where method parameter is used
You can help!