/
cache.go
118 lines (99 loc) · 2.38 KB
/
cache.go
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package constructor
import (
"fmt"
"sort"
"github.com/YReshetko/go-annotation/annotations/constructor/generators"
)
type key struct {
dir string
pkg string
}
type cache struct {
data map[key]map[string]*typeCache
}
func newCache() *cache {
return &cache{data: map[key]map[string]*typeCache{}}
}
func (c *cache) addGenerator(dir, pkg, typeName string, g generator) {
cll := c.initOnGetCollector(dir, pkg, typeName)
cll.addGenerator(g)
}
func (c *cache) addPostConstruct(dir, pkg, typeName string, p generators.PostConstructValues) {
cll := c.initOnGetCollector(dir, pkg, typeName)
cll.addPostConstruct(p)
}
func (c *cache) generate() (map[key][]generators.Data, error) {
out := make(map[key][]generators.Data)
for k, m := range c.data {
var data []generators.Data
var sortedTG []struct {
tn string
tc *typeCache
}
for tn, tc := range m {
sortedTG = append(sortedTG, struct {
tn string
tc *typeCache
}{tn: tn, tc: tc})
}
sort.Slice(sortedTG, func(i, j int) bool {
return sortedTG[i].tn < sortedTG[j].tn
})
for _, tntc := range sortedTG {
gd, err := tntc.tc.generate()
if err != nil {
return nil, fmt.Errorf("unable to generate data for type %s", tntc.tn)
}
data = append(data, gd...)
}
out[k] = data
}
return out, nil
}
func (c *cache) initOnGetCollector(dir, pkg, typeName string) *typeCache {
k := key{
dir: dir,
pkg: pkg,
}
v, ok := c.data[k]
if !ok {
v = map[string]*typeCache{}
c.data[k] = v
}
cll, ok := v[typeName]
if !ok {
cll = newTypeCache()
v[typeName] = cll
}
return cll
}
type typeCache struct {
generators []generator
postConstructs []generators.PostConstructValues
}
func newTypeCache() *typeCache {
return &typeCache{
generators: []generator{},
postConstructs: []generators.PostConstructValues{},
}
}
func (c *typeCache) addGenerator(g generator) {
c.generators = append(c.generators, g)
}
func (c *typeCache) addPostConstruct(p generators.PostConstructValues) {
c.postConstructs = append(c.postConstructs, p)
}
func (c *typeCache) generate() ([]generators.Data, error) {
data := make([]generators.Data, len(c.generators))
for i, g := range c.generators {
d, im, err := g.Generate(c.postConstructs)
if err != nil {
return nil, fmt.Errorf("unable to generate code sample for %s", g.Name())
}
data[i] = generators.Data{
Data: d,
Imports: im,
}
}
return data, nil
}