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2025-09-21 12:06:32 +08:00
parent 0e0f076fc4
commit e57caf3080
6 changed files with 599 additions and 572 deletions
@@ -0,0 +1,109 @@
+package structx
+
+import (
+	"fmt"
+	"reflect"
+)
+
+// ValueSetter 值设置器接口
+type ValueSetter interface {
+	SetFieldValue(field reflect.Value, value string) (interface{}, error)
+	SetSliceElementValue(elemValue reflect.Value, item interface{}, elemType reflect.Type) error
+}
+
+// defaultValueSetter 默认值设置器
+type defaultValueSetter struct{}
+
+func (ds *defaultValueSetter) SetFieldValue(field reflect.Value, value string) (interface{}, error) {
+	fieldType := field.Type()
+
+	if hasUnmarshalJSON(fieldType) {
+		if err := setUnmarshalJSONValue(field, value); err != nil {
+			return nil, fmt.Errorf("UnmarshalJSON失败: %w", err)
+		}
+		return field.Interface(), nil
+	}
+
+	if hasUnmarshalText(fieldType) {
+		if err := setUnmarshalTextValue(field, value); err != nil {
+			return nil, fmt.Errorf("UnmarshalText失败: %w", err)
+		}
+		return field.Interface(), nil
+	}
+
+	if fieldType.Kind() == reflect.Ptr {
+		return setPointerFieldValue(field, value)
+	}
+
+	if isTypeAlias(fieldType) {
+		return setTypeAliasValue(field, value)
+	}
+
+	if isCustomStructType(fieldType) {
+		return setCustomTypeValue(field, value)
+	}
+
+	converter, exists := typeConverters[fieldType.Kind()]
+	if !exists {
+		return nil, fmt.Errorf("不支持的类型: %s", fieldType.Kind())
+	}
+
+	result, err := converter(field, value)
+	if err != nil {
+		return nil, err
+	}
+
+	field.Set(reflect.ValueOf(result))
+	return result, nil
+}
+
+func (ds *defaultValueSetter) SetSliceElementValue(elemValue reflect.Value, item interface{}, elemType reflect.Type) error {
+	if elemType.Kind() == reflect.Ptr {
+		if elemValue.IsNil() {
+			elemValue.Set(reflect.New(elemType.Elem()))
+		}
+		return ds.SetSliceElementValue(elemValue.Elem(), item, elemType.Elem())
+	}
+
+	if hasUnmarshalJSON(elemType) {
+		return setUnmarshalJSONValue(elemValue, item)
+	}
+
+	switch elemType.Kind() {
+	case reflect.String:
+		elemValue.SetString(convertToString(item))
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		num, err := convertToFloat64(item)
+		if err != nil {
+			return fmt.Errorf("无法转换为整型: %w", err)
+		}
+		elemValue.SetInt(int64(num))
+	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
+		num, err := convertToFloat64(item)
+		if err != nil {
+			return fmt.Errorf("无法转换为无符号整型: %w", err)
+		}
+		elemValue.SetUint(uint64(num))
+	case reflect.Float32, reflect.Float64:
+		num, err := convertToFloat64(item)
+		if err != nil {
+			return fmt.Errorf("无法转换为浮点型: %w", err)
+		}
+		elemValue.SetFloat(num)
+	case reflect.Bool:
+		if b, ok := item.(bool); ok {
+			elemValue.SetBool(b)
+		} else {
+			return fmt.Errorf("无法转换为布尔型")
+		}
+	case reflect.Struct:
+		if isBasicStructType(elemType) {
+			return setBasicStructElement(elemValue, item)
+		}
+		return setStructElement(elemValue, item)
+	default:
+		return fmt.Errorf("不支持的切片元素类型: %s", elemType.Kind())
+	}
+
+	return nil
+}