Fix panic runtime error on ast.KindTupleTypes

Author: hamidrezahanafi

internal/transformers/declarations/transform.go

@@ -468,10 +468,13 @@ func (tx *DeclarationTransformer) visitDeclarationSubtree(input *ast.Node) *ast.
 	case ast.KindTupleType:
 		result = tx.Visitor().VisitEachChild(input)
 		if result != nil {
-			startLine, _ := scanner.GetLineAndCharacterOfPosition(tx.state.currentSourceFile, input.Loc.Pos())
-			endLine, _ := scanner.GetLineAndCharacterOfPosition(tx.state.currentSourceFile, input.Loc.End())
-			if startLine == endLine {
-				tx.EmitContext().AddEmitFlags(result, printer.EFSingleLine)
+			nodeSourceFile := ast.GetSourceFileOfNode(input)
+			if nodeSourceFile != nil {
+				startLine, _ := scanner.GetLineAndCharacterOfPosition(nodeSourceFile, input.Loc.Pos())
+				endLine, _ := scanner.GetLineAndCharacterOfPosition(nodeSourceFile, input.Loc.End())
+				if startLine == endLine {
+					tx.EmitContext().AddEmitFlags(result, printer.EFSingleLine)
+				}
 			}
 		}
 	case ast.KindJSDocTypeExpression: