Answer
Roslyn provides AST, syntax trees, semantic models, analyzers, and source generation. It is a compiler-as-a-service.
Quick Answer
Roslyn is the C# and VB compiler exposed as an API (compiler-as-a-service). It provides syntax trees, semantic models, and diagnostics that tools like Visual Studio, analyzers, and code fixers use. Source generators hook into Roslyn to generate code at compile time based on your existing code.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ