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11 changes: 10 additions & 1 deletion lang/golang/parser/ctx.go
Original file line number Diff line number Diff line change
Expand Up @@ -249,7 +249,16 @@ func GetRawContent(fset *token.FileSet, file []byte, node ast.Node, collectComme
doc.WriteByte('\n')
}
}
doc.Write(file[fset.Position(node.Pos()).Offset:fset.Position(node.End()).Offset])
pos := fset.Position(node.Pos())
endPos := fset.Position(node.End())
if endPos.Offset < pos.Offset {
var funcName string
if fn, ok := node.(*ast.FuncDecl); ok {
funcName = fn.Name.Name
}
fmt.Fprintf(os.Stderr, "end < begin, file: %s, function: %s, possibly because file compilation failed\n", pos.Filename, funcName)
}
doc.Write(file[pos.Offset:endPos.Offset])
return doc.Bytes()
}

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