flowchart TD
  Start([ResolveCtx::resolve_root]) --> Resolve[ResolveContext::resolve]
  Resolve --> CheckType{检查表达式类型}

  CheckType -->|AttrSet| A_ResolveKeys[解析所有键]
  A_ResolveKeys --> A_ResolveValues[解析所有值]
  A_ResolveValues --> End
  A_ResolveKeys -.->|resolve| Resolve
  A_ResolveValues -.->|resolve| Resolve

  CheckType -->|List| L_ResolveElements[解析所有元素]
  L_ResolveElements --> End
  L_ResolveElements -.->|resolve| Resolve

  CheckType -->|HasAttr| HA_ResolveAttrSet[解析 AttrSet]
  HA_ResolveAttrSet --> HA_ResolveAttrPath[解析 AttrPath]
  HA_ResolveAttrPath --> End
  HA_ResolveAttrSet -.->|resolve| Resolve
  HA_ResolveAttrPath -.->|resolve| Resolve

  CheckType -->|BinOp| B_ResolveLeft[解析左操作数]
  B_ResolveLeft --> B_ResolveRight[解析右操作数]
  B_ResolveRight --> End
  B_ResolveLeft -.->|resolve| Resolve
  B_ResolveRight -.->|resolve| Resolve

  CheckType -->|UnOp| U_ResolveOperand[解析操作数]
  U_ResolveOperand --> End
  U_ResolveOperand -.->|resolve| Resolve

  CheckType -->|Select| S_ResolveAttrSet[解析 AttrSet]
  S_ResolveAttrSet --> S_ResolveAttrPath[解析 AttrPath]
  S_ResolveAttrPath --> End
  S_ResolveAttrSet -.->|resolve| Resolve
  S_ResolveAttrPath -.->|resolve| Resolve

  CheckType -->|If| I_ResolveCond[解析条件]
  I_ResolveCond --> I_ResolveConsq[解析 then 分支]
  I_ResolveConsq --> I_ResolveAlter[解析 else 分支]
  I_ResolveAlter --> End
  I_ResolveCond -.->|resolve| Resolve
  I_ResolveConsq -.->|resolve| Resolve
  I_ResolveAlter -.->|resolve| Resolve

  CheckType -->|Call| C_ResolveFunc[解析函数]
  C_ResolveFunc --> C_ResolveArg[解析参数]
  C_ResolveArg --> End
  C_ResolveFunc -.->|resolve| Resolve
  C_ResolveArg -.->|resolve| Resolve

  CheckType -->|Let| Le_EnterLet[进入 Let 环境]
  Le_EnterLet --> Le_ResolveValues[解析所有键]
  Le_ResolveValues --> Le_ResolveBody[解析表达式]
  Le_ResolveBody --> Le_ExitLet[退出 Let 环境]
  Le_ExitLet --> End
  Le_ResolveValues -.->|resolve| Resolve
  Le_ResolveBody -.->|resolve| Resolve

  CheckType -->|With| W_ResolveNameSpace[解析命名空间]
  W_ResolveNameSpace --> W_EnterWith[进入命名空间]
  W_EnterWith --> W_ResolveBody[解析表达式]
  W_ResolveBody --> W_ExitWith[退出命名空间]
  W_ExitWith --> End
  W_ResolveNameSpace -.->|resolve| Resolve
  W_ResolveBody -.->|resolve| Resolve

  CheckType -->|Assert| As_ResolveCond[解析断言]
  As_ResolveCond --> As_ResolveBody[解析表达式]
  As_ResolveBody --> End
  As_ResolveCond -.->|resolve| Resolve
  As_ResolveBody -.->|resolve| Resolve

  CheckType -->|ConcatStrings| CS_ResolveParts[解析所有字符串片段]
  CS_ResolveParts --> End
  CS_ResolveParts -.->|resolve| Resolve

  CheckType -->|Const| End

  CheckType -->|Str| End

  CheckType -->|Var| V_Lookup[查找变量]
  V_Lookup --> End

  CheckType -->|Arg| Ar_Lookup[查找参数]
  Ar_Lookup --> End

  CheckType -->|Func| F_EnterEnv[进入函数环境]
  F_EnterEnv --> F_ResolveBody[解析函数体]
  F_ResolveBody --> F_ExitEnv[退出函数环境]
  F_ExitEnv --> End

  End([返回结果])