Initial standard library functions for reflection features.

lib/zhvlib/Reflect.cc

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2024 - Nathanne Isip
+ * This file is part of Zhivo.
+ * 
+ * Zhivo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ * 
+ * Zhivo is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Zhivo. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "zhvlib/Reflect.hpp"
+
+#include <zhivo/ast/TerminativeSignal.hpp>
+
+ZHIVO_FUNC(reflect_get) {
+    if(args.size() != 1)
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Expecting 1 argument, got " +
+                std::to_string(args.size())
+        );
+
+    DynamicObject name = args.at(0);
+    const std::string symName = name.toString();
+
+    return symtab.getSymbol(
+        std::move(address),
+        symName
+    );
+}
+
+ZHIVO_FUNC(reflect_has) {
+    if(args.size() != 1)
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Expecting 1 argument, got " +
+                std::to_string(args.size())
+        );
+
+    DynamicObject name = args.at(0);
+    const std::string symName = name.toString();
+
+    return DynamicObject(symtab.hasSymbol(symName));
+}
+
+ZHIVO_FUNC(reflect_type) {
+    if(args.size() != 1)
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Expecting 1 argument, got " +
+                std::to_string(args.size())
+        );
+
+    DynamicObject name = args.at(0);
+    const std::string symName = name.toString();
+
+    return symtab.getSymbol(
+        std::move(address),
+        symName
+    ).objectType();
+}
+
+ZHIVO_FUNC(reflect_declare) {
+    if(args.size() != 2)
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Expecting 2 argument, got " +
+                std::to_string(args.size())
+        );
+
+    DynamicObject name = args.at(0),
+        value = args.at(1);
+
+    std::string symName = name.toString();
+    if(Tokenizer::isValidIdentifier(symName))
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Invalid identifier string: " +
+                symName
+        );
+
+    symtab.setSymbol(symName, value);
+    return value;
+}
+
+ZHIVO_FUNC(reflect_delete) {
+    if(args.size() != 1)
+        throw TerminativeThrowSignal(
+            std::move(address),
+            "Expecting 1 argument, got " +
+                std::to_string(args.size())
+        );
+
+    DynamicObject name = args.at(0);
+    symtab.removeSymbol(name.toString());
+
+    return DynamicObject();
+}

lib/zhvlib/Reflect.hpp

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2024 - Nathanne Isip
+ * This file is part of Zhivo.
+ * 
+ * Zhivo is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ * 
+ * Zhivo is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Zhivo. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef ZHIVO_STDLIB_REFLECT_CC
+#define ZHIVO_STDLIB_REFLECT_CC
+
+#include "ZhivoLibrary.hpp"
+
+ZHIVO_LIB_START
+
+ZHIVO_FUNC(reflect_get);
+ZHIVO_FUNC(reflect_has);
+ZHIVO_FUNC(reflect_type);
+
+ZHIVO_FUNC(reflect_declare);
+ZHIVO_FUNC(reflect_delete);
+
+ZHIVO_LIB_END
+
+#endif