42 lines
1.0 KiB
Go
42 lines
1.0 KiB
Go
package container
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import (
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"reflect"
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)
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// Scope is a special type used to define a provider scope.
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//
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// Special scoped constructors can be used with Provide by declaring a
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// constructor with an input parameter of type Scope. These constructors
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// should construct an unique value for each dependency based on scope and will
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// be called at most once per scope.
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//
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// Constructors passed to ProvideWithScope can also declare an input parameter
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// of type Scope to retrieve their scope but these constructors will be called at most once.
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type Scope interface {
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isScope()
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// Name returns the name of the scope which is unique within a container.
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Name() string
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}
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// NewScope creates a new scope with the provided name. Only one scope with a
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// given name can be created per container.
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func newScope(name string) Scope {
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return &scope{name: name}
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}
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type scope struct {
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name string
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}
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func (s *scope) Name() string {
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return s.name
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}
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func (s *scope) isScope() {}
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var scopeType = reflect.TypeOf((*Scope)(nil)).Elem()
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var stringType = reflect.TypeOf("")
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