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# Code

## Code Attributes

These attributes allow to report this unit of code and therefore to provide more context about the span.

| Attribute         | Type   | Description                                                                                                                                                                                                    | Examples                                                                                                                                                                             | Stability                                                        |
| ----------------- | ------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------- |
| `code.column`     | int    | The column number in `code.filepath` best representing the operation. It SHOULD point within the code unit named in `code.function`.                                                                           | `16`                                                                                                                                                                                 | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `code.filepath`   | string | The source code file name that identifies the code unit as uniquely as possible (preferably an absolute file path).                                                                                            | `/usr/local/MyApplication/content_root/app/index.php`                                                                                                                                | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `code.function`   | string | The method or function name, or equivalent (usually rightmost part of the code unit's name).                                                                                                                   | `serveRequest`                                                                                                                                                                       | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `code.lineno`     | int    | The line number in `code.filepath` best representing the operation. It SHOULD point within the code unit named in `code.function`.                                                                             | `42`                                                                                                                                                                                 | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `code.namespace`  | string | The "namespace" within which `code.function` is defined. Usually the qualified class or module name, such that `code.namespace` + some separator + `code.function` form a unique identifier for the code unit. | `com.example.MyHttpService`                                                                                                                                                          | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
| `code.stacktrace` | string | A stacktrace as a string in the natural representation for the language runtime. The representation is to be determined and documented by each language SIG.                                                   | `at com.example.GenerateTrace.methodB(GenerateTrace.java:13)\n at com.example.GenerateTrace.methodA(GenerateTrace.java:9)\n at com.example.GenerateTrace.main(GenerateTrace.java:5)` | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
