# SourceFileLine

Property in [Declaration](https://docs.yarnspinner.dev/2.0/api/csharp/yarn.compiler/yarn.compiler.declaration)

## Summary

The line number at which this Declaration was found in the source file.

```csharp
public int SourceFileLine { get; internal set; }
```

## Remarks

If this [Declaration](https://docs.yarnspinner.dev/2.0/api/csharp/yarn.compiler/yarn.compiler.declaration) was not found in a Yarn source file, this will be -1.