chore: import upstream snapshot with attribution

internal/parser/languages/rescript.go

@@ -0,0 +1,47 @@
+package languages
+
+import (
+	"regexp"
+
+	rescriptforest "github.com/alexaandru/go-sitter-forest/rescript"
+
+	"github.com/zzet/gortex/internal/graph"
+	"github.com/zzet/gortex/internal/parser"
+	"github.com/zzet/gortex/internal/parser/forest"
+)
+
+// ReScript migration: forest's walker (per-language map for
+// `let_declaration` / `module_declaration` / `type_declaration`)
+// catches definitions. `open` / `include` imports stay regex.
+var rescriptOpenRe = regexp.MustCompile(`(?m)^\s*(?:open|include)\s+([\w.]+)`)
+
+type ReScriptExtractor struct {
+	forest *forest.Extractor
+}
+
+func NewReScriptExtractor() *ReScriptExtractor {
+	return &ReScriptExtractor{
+		forest: forest.New("rescript", []string{".res", ".resi"}, rescriptforest.GetLanguage, rescriptforest.GetQuery),
+	}
+}
+
+func (e *ReScriptExtractor) Language() string     { return "rescript" }
+func (e *ReScriptExtractor) Extensions() []string { return []string{".res", ".resi"} }
+
+func (e *ReScriptExtractor) Extract(filePath string, src []byte) (*parser.ExtractionResult, error) {
+	res, err := e.forest.Extract(filePath, src)
+	if err != nil {
+		return nil, err
+	}
+	for _, m := range rescriptOpenRe.FindAllSubmatchIndex(src, -1) {
+		mod := string(src[m[2]:m[3]])
+		line := lineAt(src, m[0])
+		res.Edges = append(res.Edges, &graph.Edge{
+			From: filePath, To: "unresolved::import::" + mod,
+			Kind: graph.EdgeImports, FilePath: filePath, Line: line,
+		})
+	}
+	return res, nil
+}
+
+var _ parser.Extractor = (*ReScriptExtractor)(nil)