46 lines
1.6 KiB
Go
46 lines
1.6 KiB
Go
package tsc
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import (
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"sync"
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"efprojects.com/kitten-ipc/kitcom/internal/tsgo/collections"
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"efprojects.com/kitten-ipc/kitcom/internal/tsgo/tsoptions"
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"efprojects.com/kitten-ipc/kitcom/internal/tsgo/tspath"
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)
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// extendedConfigCache is a minimal implementation of tsoptions.ExtendedConfigCache.
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// It is concurrency-safe, but stores cached entries permanently. This implementation
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// should not be used for long-running processes where configuration changes over the
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// course of multiple compilations.
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type ExtendedConfigCache struct {
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m collections.SyncMap[tspath.Path, *extendedConfigCacheEntry]
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}
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type extendedConfigCacheEntry struct {
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*tsoptions.ExtendedConfigCacheEntry
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mu sync.Mutex
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}
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var _ tsoptions.ExtendedConfigCache = (*ExtendedConfigCache)(nil)
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// GetExtendedConfig implements tsoptions.ExtendedConfigCache.
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func (e *ExtendedConfigCache) GetExtendedConfig(fileName string, path tspath.Path, parse func() *tsoptions.ExtendedConfigCacheEntry) *tsoptions.ExtendedConfigCacheEntry {
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entry, loaded := e.loadOrStoreNewLockedEntry(path)
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defer entry.mu.Unlock()
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if !loaded {
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entry.ExtendedConfigCacheEntry = parse()
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}
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return entry.ExtendedConfigCacheEntry
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}
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// loadOrStoreNewLockedEntry loads an existing entry or creates a new one. The returned entry's mutex is locked.
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func (c *ExtendedConfigCache) loadOrStoreNewLockedEntry(path tspath.Path) (*extendedConfigCacheEntry, bool) {
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entry := &extendedConfigCacheEntry{}
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entry.mu.Lock()
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if existing, loaded := c.m.LoadOrStore(path, entry); loaded {
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existing.mu.Lock()
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return existing, true
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}
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return entry, false
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}
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