vendor tsgo

tools/tsgo/internal/project/parsecache.go

@@ -0,0 +1,39 @@
+package project
+
+import (
+	"github.com/microsoft/typescript-go/internal/ast"
+	"github.com/microsoft/typescript-go/internal/core"
+	"github.com/microsoft/typescript-go/internal/parser"
+	"github.com/zeebo/xxh3"
+)
+
+type ParseCacheKey struct {
+	ast.SourceFileParseOptions
+	ScriptKind core.ScriptKind
+	Hash       xxh3.Uint128
+}
+
+func NewParseCacheKey(
+	options ast.SourceFileParseOptions,
+	hash xxh3.Uint128,
+	scriptKind core.ScriptKind,
+) ParseCacheKey {
+	return ParseCacheKey{
+		SourceFileParseOptions: options,
+		Hash:                   hash,
+		ScriptKind:             scriptKind,
+	}
+}
+
+type ParseCache = RefCountCache[ParseCacheKey, *ast.SourceFile, FileHandle]
+
+func NewParseCache(options RefCountCacheOptions) *ParseCache {
+	return NewRefCountCache(
+		options,
+		func(key ParseCacheKey, fh FileHandle) *ast.SourceFile {
+			file := parser.ParseSourceFile(key.SourceFileParseOptions, fh.Content(), key.ScriptKind)
+			file.Hash = fh.Hash()
+			return file
+		},
+	)
+}