58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
package container
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import (
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"reflect"
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"github.com/goccy/go-graphviz/cgraph"
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)
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type moduleDepProvider struct {
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provider *ProviderDescriptor
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calledForModule map[*moduleKey]bool
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valueMap map[*moduleKey][]reflect.Value
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}
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type moduleDepResolver struct {
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typ reflect.Type
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idxInValues int
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node *moduleDepProvider
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valueMap map[*moduleKey]reflect.Value
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graphNode *cgraph.Node
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}
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func (s moduleDepResolver) describeLocation() string {
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return s.node.provider.Location.String()
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}
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func (s moduleDepResolver) resolve(ctr *container, moduleKey *moduleKey, caller Location) (reflect.Value, error) {
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// Log
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ctr.logf("Providing %v from %s to %s", s.typ, s.node.provider.Location, caller.Name())
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// Resolve
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if val, ok := s.valueMap[moduleKey]; ok {
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return val, nil
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}
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if !s.node.calledForModule[moduleKey] {
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values, err := ctr.call(s.node.provider, moduleKey)
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if err != nil {
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return reflect.Value{}, err
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}
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s.node.valueMap[moduleKey] = values
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s.node.calledForModule[moduleKey] = true
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}
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value := s.node.valueMap[moduleKey][s.idxInValues]
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s.valueMap[moduleKey] = value
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return value, nil
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}
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func (s moduleDepResolver) addNode(p *simpleProvider, _ int) error {
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return duplicateDefinitionError(s.typ, p.provider.Location, s.node.provider.Location.String())
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}
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func (s moduleDepResolver) typeGraphNode() *cgraph.Node {
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return s.graphNode
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}
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