cosmos-sdk/depinject/simple.go
Aaron Craelius 7728516abf
refactor(depinject)!: require exported functions & types (#12797)
* refactor(depinject)!: require exported functions

* unexport ProviderDescriptor

* WIP on tests

* fix tests and check for bound instance methods

* address merge issues

* WIP on checking valid types

* WIP on checking valid types

* WIP

* tests passing

* revert changes outside module

* docs

* docs

* docs

* add comment

* revert

* update depinject go.mod versions

* remove go.work

* add go.work back

* go mod tidy

* fix docs

Co-authored-by: Julien Robert <julien@rbrt.fr>
2022-08-31 17:37:01 +00:00

72 lines
1.4 KiB
Go

package depinject
import (
"reflect"
"cosmossdk.io/depinject/internal/graphviz"
)
type simpleProvider struct {
provider *providerDescriptor
called bool
values []reflect.Value
moduleKey *moduleKey
}
type simpleResolver struct {
node *simpleProvider
idxInValues int
resolved bool
typ reflect.Type
value reflect.Value
graphNode *graphviz.Node
}
func (s *simpleResolver) getType() reflect.Type {
return s.typ
}
func (s *simpleResolver) describeLocation() string {
return s.node.provider.Location.String()
}
func (s *simpleProvider) resolveValues(ctr *container) ([]reflect.Value, error) {
if !s.called {
values, err := ctr.call(s.provider, s.moduleKey)
if err != nil {
return nil, err
}
s.values = values
s.called = true
}
return s.values, nil
}
func (s *simpleResolver) resolve(c *container, _ *moduleKey, caller Location) (reflect.Value, error) {
// Log
c.logf("Providing %v from %s to %s", s.typ, s.node.provider.Location, caller.Name())
// Resolve
if !s.resolved {
values, err := s.node.resolveValues(c)
if err != nil {
return reflect.Value{}, err
}
value := values[s.idxInValues]
s.value = value
s.resolved = true
}
return s.value, nil
}
func (s simpleResolver) addNode(p *simpleProvider, _ int) error {
return duplicateDefinitionError(s.typ, p.provider.Location, s.node.provider.Location.String())
}
func (s simpleResolver) typeGraphNode() *graphviz.Node {
return s.graphNode
}