1 files changed, 0 insertions, 82 deletions
diff --git a/internal/scfg/struct.go b/internal/scfg/struct.go
deleted file mode 100644
index 98ec943..0000000
--- a/internal/scfg/struct.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: MIT
-// SPDX-FileCopyrightText: Copyright (c) 2020 Simon Ser <https://emersion.fr>
-
-package scfg
-
-import (
-	"fmt"
-	"reflect"
-	"strings"
-	"sync"
-)
-
-// structInfo contains scfg metadata for structs.
-type structInfo struct {
-	param    int            // index of field storing parameters
-	children map[string]int // indices of fields storing child directives
-}
-
-var (
-	structCacheMutex sync.Mutex
-	structCache      = make(map[reflect.Type]*structInfo)
-)
-
-func getStructInfo(t reflect.Type) (*structInfo, error) {
-	structCacheMutex.Lock()
-	defer structCacheMutex.Unlock()
-
-	if info := structCache[t]; info != nil {
-		return info, nil
-	}
-
-	info := &structInfo{
-		param:    -1,
-		children: make(map[string]int),
-	}
-
-	for i := 0; i < t.NumField(); i++ {
-		f := t.Field(i)
-		if f.Anonymous {
-			return nil, fmt.Errorf("scfg: anonymous struct fields are not supported")
-		} else if !f.IsExported() {
-			continue
-		}
-
-		tag := f.Tag.Get("scfg")
-		parts := strings.Split(tag, ",")
-		k, options := parts[0], parts[1:]
-		if k == "-" {
-			continue
-		} else if k == "" {
-			k = f.Name
-		}
-
-		isParam := false
-		for _, opt := range options {
-			switch opt {
-			case "param":
-				isParam = true
-			default:
-				return nil, fmt.Errorf("scfg: invalid option %q in struct tag", opt)
-			}
-		}
-
-		if isParam {
-			if info.param >= 0 {
-				return nil, fmt.Errorf("scfg: param option specified multiple times in struct tag in %v", t)
-			}
-			if parts[0] != "" {
-				return nil, fmt.Errorf("scfg: name must be empty when param option is specified in struct tag in %v", t)
-			}
-			info.param = i
-		} else {
-			if _, ok := info.children[k]; ok {
-				return nil, fmt.Errorf("scfg: key %q specified multiple times in struct tag in %v", k, t)
-			}
-			info.children[k] = i
-		}
-	}
-
-	structCache[t] = info
-	return info, nil
-}