AST implementation for the 'size' expression.

src/n8/ast/expression/SizeExpression.cpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2024 - Nathanne Isip
+ * This file is part of N8.
+ * 
+ * N8 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.
+ * 
+ * N8 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 N8. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <n8/ast/ASTNodeException.hpp>
+#include <n8/ast/expression/SizeExpression.hpp>
+
+#include <n8/parser/Token.hpp>
+
+DynamicObject SizeExpression::visit(SymbolTable& symbols) {
+    DynamicObject value = this->expression->visit(symbols);
+    if(value.isArray())
+        return DynamicObject((float) value.getArray()->size());
+    else if(value.isBool() || value.isNumber())
+        return DynamicObject(1.0f);
+    else if(value.isRegex())
+        return DynamicObject((float) value.getRegex()->getPattern().size());
+    else if(value.isString())
+        return DynamicObject((float) value.getString().size());
+
+    return DynamicObject(0.0f);
+}