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Code Issues Releases Activity

stdouttrace: Refine example (#4872)

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This commit is contained in:
Robert Pająk
2024-01-31 16:10:28 +01:00
committed by GitHub
parent bf1ae8cb04
commit d9d9507227
1 changed files with 11 additions and 11 deletions
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exporters/stdout/stdouttrace/example_test.go
+11 -11
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@@ -38,20 +38,18 @@ var tracer = otel.GetTracerProvider().Tracer(
trace.WithSchemaURL(semconv.SchemaURL),
)
func add(ctx context.Context, x, y int64) (context.Context, int64) {
var span trace.Span
ctx, span = tracer.Start(ctx, "Addition")
func add(ctx context.Context, x, y int64) int64 {
_, span := tracer.Start(ctx, "Addition")
defer span.End()
return ctx, x + y
return x + y
}
func multiply(ctx context.Context, x, y int64) (context.Context, int64) {
var span trace.Span
ctx, span = tracer.Start(ctx, "Multiplication")
func multiply(ctx context.Context, x, y int64) int64 {
_, span := tracer.Start(ctx, "Multiplication")
defer span.End()
return ctx, x * y
return x * y
}
func Resource() *resource.Resource {
@@ -91,8 +89,10 @@ func Example() {
}
}()
ctx, ans := multiply(ctx, 2, 2)
ctx, ans = multiply(ctx, ans, 10)
ctx, ans = add(ctx, ans, 2)
ctx, span := tracer.Start(ctx, "Calculation")
defer span.End()
ans := multiply(ctx, 2, 2)
ans = multiply(ctx, ans, 10)
ans = add(ctx, ans, 2)
log.Println("the answer is", ans)
}