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fix #1665

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This commit is contained in:
Gerasimos (Makis) Maropoulos
2020-10-31 05:04:05 +02:00
parent b335ab9c78
commit a70ee32ebd
12 changed files with 927 additions and 15 deletions
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25
hero/binding.go
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@@ -248,8 +248,29 @@ func getBindingsForFunc(fn reflect.Value, dependencies []*Dependency, paramsCoun
}
bindings := getBindingsFor(inputs, dependencies, paramsCount)
if expected, got := n, len(bindings); expected > got {
panic(fmt.Sprintf("expected [%d] bindings (input parameters) but got [%d]", expected, got))
if expected, got := n, len(bindings); expected != got {
expectedInputs := ""
missingInputs := ""
for i, in := range inputs {
pos := i + 1
typName := in.String()
expectedInputs += fmt.Sprintf("\n - [%d] %s", pos, typName)
found := false
for _, b := range bindings {
if b.Input.Index == i {
found = true
break
}
}
if !found {
missingInputs += fmt.Sprintf("\n - [%d] %s", pos, typName)
}
}
fnName := context.HandlerName(fn)
panic(fmt.Sprintf("expected [%d] bindings (input parameters) but got [%d]\nFunction:\n - %s\nExpected:%s\nMissing:%s",
expected, got, fnName, expectedInputs, missingInputs))
}
return bindings