新增builtin函数 type，接收一个参数，获取类型字符串。(类似 js) 标准库 std.value.type函数更名 _type返回底层类型

src/Evaluator/Core/EvalFunctionCall.cpp

@@ -64,7 +64,7 @@ namespace Fig
                                                  fnName.toBasicString(),
                                                  fn.builtinParamCount,
                                                  evaluatedArgs.getLength()),
-                                     fnArgs.argv.back());
+                                     (fnArgs.getLength() > 0 ? fnArgs.argv.back() : call));
             }
             return executeFunction(fn, evaluatedArgs, nullptr);
         }

src/Evaluator/Core/EvalStatement.cpp

@@ -1,4 +1,4 @@
-#include "Evaluator/Core/ExprResult.hpp"
+#include <Evaluator/Core/ExprResult.hpp>
 #include <Ast/AccessModifier.hpp>
 #include <Ast/Expressions/FunctionCall.hpp>
 #include <Ast/astBase.hpp>

src/Module/Library/std/value/value.fig

@@ -7,7 +7,7 @@
 
 import _builtins;
 
-public func type(object: Any) -> String
+public func _type(object: Any) -> String
 {
     return __fvalue_type(object);
 }

src/Module/builtins.cpp

@@ -1,10 +1,10 @@
-#include "Ast/Expressions/BinaryExpr.hpp"
-#include "Ast/Expressions/FunctionCall.hpp"
-#include "Ast/Expressions/ValueExpr.hpp"
-#include "Ast/Expressions/VarExpr.hpp"
-#include "Ast/Statements/ControlSt.hpp"
-#include "Ast/astBase.hpp"
-#include "Ast/functionParameters.hpp"
+#include <Ast/Expressions/BinaryExpr.hpp>
+#include <Ast/Expressions/FunctionCall.hpp>
+#include <Ast/Expressions/ValueExpr.hpp>
+#include <Ast/Expressions/VarExpr.hpp>
+#include <Ast/Statements/ControlSt.hpp>
+#include <Ast/astBase.hpp>
+#include <Ast/functionParameters.hpp>
 #include <Evaluator/Context/context.hpp>
 #include <Core/fig_string.hpp>
 #include <Ast/AccessModifier.hpp>
@@ -75,6 +75,16 @@ namespace Fig::Builtins
             {u8"Map", std::make_shared<Object>(StructType(ValueType::Map, nullptr, {}, true))},
             // Type `StructType` `StructInstance` `Module` `InterfaceType`
             // Not allowed to call constructor!
+
+            {u8"type", std::make_shared<Object>(Function(
+                u8"type",
+                [](const std::vector<ObjectPtr> &_args) -> ObjectPtr
+                {
+                    const ObjectPtr &arg = _args[0];
+                    return std::make_shared<Object>(prettyType(arg));
+                },
+                1
+            ))},
         };
         return builtinValues;
     }