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package addrs
import (
"fmt"
)
// OutputValue is the address of an output value, in the context of the module
// that is defining it.
//
// This is related to but separate from ModuleCallOutput, which represents
// a module output from the perspective of its parent module. Since output
// values cannot be represented from the module where they are defined,
// OutputValue is not Referenceable, while ModuleCallOutput is.
type OutputValue struct {
Name string
}
func (v OutputValue) String() string {
return "output." + v.Name
}
// Absolute converts the receiver into an absolute address within the given
// module instance.
func (v OutputValue) Absolute(m ModuleInstance) AbsOutputValue {
return AbsOutputValue{
Module: m,
OutputValue: v,
}
}
// AbsOutputValue is the absolute address of an output value within a module instance.
//
// This represents an output globally within the namespace of a particular
// configuration. It is related to but separate from ModuleCallOutput, which
// represents a module output from the perspective of its parent module.
type AbsOutputValue struct {
Module ModuleInstance
OutputValue OutputValue
}
// OutputValue returns the absolute address of an output value of the given
// name within the receiving module instance.
func (m ModuleInstance) OutputValue(name string) AbsOutputValue {
return AbsOutputValue{
Module: m,
OutputValue: OutputValue{
Name: name,
},
}
}
func (v AbsOutputValue) String() string {
if v.Module.IsRoot() {
return v.OutputValue.String()
}
return fmt.Sprintf("%s.%s", v.Module.String(), v.OutputValue.String())
}
// ModuleCallOutput converts an AbsModuleOutput into a ModuleCallOutput,
// returning also the module instance that the ModuleCallOutput is relative
// to.
//
// The root module does not have a call, and so this method cannot be used
// with outputs in the root module, and will panic in that case.
func (v AbsOutputValue) ModuleCallOutput() (ModuleInstance, ModuleCallOutput) {
if v.Module.IsRoot() {
panic("ReferenceFromCall used with root module output")
}
caller, call := v.Module.CallInstance()
return caller, ModuleCallOutput{
Call: call,
Name: v.OutputValue.Name,
}
}
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