ImmutableCapabilities capabilities = readCapabilities(decoder);
            boolean isExternalVariant = decoder.readBoolean();
            ImmutableList<? extends ModuleComponentArtifactMetadata> artifacts = readFiles(decoder, metadata.getId());

            RealisedConfigurationMetadata configurationMetadata = new RealisedConfigurationMetadata(metadata.getId(), configurationName, configuration.isTransitive(), configuration.isVisible(),

            if (hasExplicitExcludes) {
                excludes = ImmutableList.copyOf(readMavenExcludes(decoder));
            }
            ImmutableList<? extends ModuleComponentArtifactMetadata> artifacts = readFiles(decoder, metadata.getId());

            RealisedConfigurationMetadata configurationMetadata = new RealisedConfigurationMetadata(
                metadata.getId(),
                configurationName,

		}
		filenames = append(filenames, list...)
	}
	return parseFiles(t, readFileFS(fsys), filenames...)
}

func readFileOS(file string) (name string, b []byte, err error) {
	name = filepath.Base(file)
	b, err = os.ReadFile(file)
	return
}

func readFileFS(fsys fs.FS) func(string) (string, []byte, error) {
	return func(file string) (name string, b []byte, err error) {

		}
		filenames = append(filenames, list...)
	}
	return parseFiles(t, readFileFS(fsys), filenames...)
}

func readFileOS(file string) (name string, b []byte, err error) {
	name = filepath.Base(file)
	b, err = os.ReadFile(file)
	return
}

func readFileFS(fsys fs.FS) func(string) (string, []byte, error) {
	return func(file string) (name string, b []byte, err error) {

			data2[i]++
		}
		data2, err = fsys.ReadFile(file)
		if err != nil {
			t.errorf("%s: second call to fsys.ReadFile: %w", file, err)
			return
		}
		t.checkFileRead(file, "Readall vs second fsys.ReadFile", data, data2)

		t.checkBadPath(file, "ReadFile",
			func(name string) error { _, err := fsys.ReadFile(name); return err })
	}

	// Check that fs.ReadFile works with t.fsys.

        then:
        outputs.stdOut.readLines() == ['message']
        outputs.stdErr == ''
    }

    def rendersErrorLogEventsToStdErr() {
        when:
        renderer.attachSystemOutAndErr()
        renderer.onOutput(event('message', LogLevel.ERROR))

        then:
        outputs.stdOut == ''
        outputs.stdErr.readLines() == ['message']
    }

		return nil, err
	}
	return f, nil
}

// The ReadFile method calls the [ReadFile] function for the file
// with the given name in the directory. The function provides
// robust handling for small files and special file systems.
// Through this method, dirFS implements [io/fs.ReadFileFS].
func (dir dirFS) ReadFile(name string) ([]byte, error) {
	fullname, err := dir.join(name)
	if err != nil {

	}
}

func TestReadFile(t *testing.T) {
	t.Parallel()

	filename := "rumpelstilzchen"
	contents, err := ReadFile(filename)
	if err == nil {
		t.Fatalf("ReadFile %s: error expected, none found", filename)
	}

	filename = "read_test.go"
	contents, err = ReadFile(filename)
	if err != nil {
		t.Fatalf("ReadFile %s: %v", filename, err)
	}

	checkNamedSize(t, filename, int64(len(contents)))
}

			continue
		}
		defer os.Remove(f)
		id, err := ReadFile(f)
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(testdata/%s) = %q, %v, want %q, nil", f, id, err, expectedID)
		}
		old := readSize
		readSize = 2048
		id, err = ReadFile(f)
		readSize = old
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(%s) [readSize=2k] = %q, %v, want %q, nil", f, id, err, expectedID)
		}

			}
		}
		return true
	})
	return !safe
}

// ReadFile reads a file and adds it to the FileSet
// so that we can report errors against it using lineStart.
func ReadFile(pass *analysis.Pass, filename string) ([]byte, *token.File, error) {
	readFile := pass.ReadFile
	if readFile == nil {
		readFile = os.ReadFile
	}
	content, err := readFile(filename)
	if err != nil {
		return nil, nil, err
	}