chore: sdk/metric/internal/x - generate x package from x component template (#7386)

sdk/metric/internal/gen.go

@@ -0,0 +1,8 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Package internal provides internal functionality for the sdk/metric package.
+package internal // import "go.opentelemetry.io/otel/sdk/metric/internal"
+
+//go:generate gotmpl --body=../../../internal/shared/x/x.go.tmpl "--data={ \"pkg\": \"go.opentelemetry.io/otel/sdk/metric\" }" --out=x/x.go
+//go:generate gotmpl --body=../../../internal/shared/x/x_test.go.tmpl "--data={}" --out=x/x_test.go

sdk/metric/internal/x/enabled_instrument.go

@@ -0,0 +1,15 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package x // import "go.opentelemetry.io/otel/sdk/metric/internal/x"
+
+import "context"
+
+// EnabledInstrument interface is implemented by synchronous instruments.
+type EnabledInstrument interface {
+	// Enabled reports whether the instrument will process measurements for the given context.
+	//
+	// This function can be used in places where measuring an instrument
+	// would result in computationally expensive operations.
+	Enabled(context.Context) bool
+}

sdk/metric/internal/x/enabled_instrument_test.go

@@ -0,0 +1,26 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package x
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+type testInstrument struct{}
+
+func (*testInstrument) Enabled(_ context.Context) bool {
+	return true
+}
+
+func TestEnabledInstrument(t *testing.T) {
+	var ei EnabledInstrument = &testInstrument{}
+
+	ctx := t.Context()
+	enabled := ei.Enabled(ctx)
+
+	require.True(t, enabled, "Enabled() should return true")
+}