> ## Documentation Index
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# coverage_common

Helper functions to access coverage-related infrastructure.

## Members

* [instrumented\_files\_info](#instrumented_files_info)

## instrumented\_files\_info

```
InstrumentedFilesInfo coverage_common.instrumented_files_info(ctx, *, source_attributes=[], dependency_attributes=[], extensions=None, metadata_files=[], baseline_coverage_files=None)
```

Creates a new [InstrumentedFilesInfo](../providers/InstrumentedFilesInfo) instance. Use this provider to communicate coverage-related attributes of the current build rule.

### Parameters

| Parameter                 | Description                                                                                                                                                                                                                                                                                                                                                    |
| ------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `ctx`                     | [ctx](../builtins/ctx); required  The rule context.                                                                                                                                                                                                                                                                                                            |
| `source_attributes`       | [sequence](../core/list); default is `[]`  A list of attribute names which contain source files processed by this rule.                                                                                                                                                                                                                                        |
| `dependency_attributes`   | [sequence](../core/list); default is `[]`  A list of attribute names which might provide runtime dependencies (either code dependencies or runfiles).                                                                                                                                                                                                          |
| `extensions`              | [sequence](../core/list) of [string](../core/string)s; or `None`; default is `None`  File extensions used to filter files from source\_attributes. For example, 'js'. If not provided (or None), then all files from source\_attributes will be added to instrumented files, if an empty list is provided, then no files from source attributes will be added. |
| `metadata_files`          | [sequence](../core/list) of [File](../builtins/File)s; default is `[]`  Additional files required to generate coverage LCOV files after code execution. e.g. .gcno files for C++.                                                                                                                                                                              |
| `baseline_coverage_files` | [sequence](../core/list) of [File](../builtins/File)s; or `None`; default is `None`                                                                                                                                                                                                                                                                            |