better error reporting

Ferenc Szontágh

2025-04-18 9a186053a690f2216b43355549c8aa7e2959583c

 src/Interpreter/DeclareVariableStatementNode.hpp

@@ -8,6 +8,8 @@
#include "ExpressionNode.hpp"
#include "Interpreter.hpp"
#include "Interpreter/StatementNode.hpp"
// Include for unified runtime Exception
#include "Interpreter/Interpreter.hpp"
#include "Symbols/SymbolContainer.hpp"
#include "Symbols/SymbolFactory.hpp"

@@ -35,18 +37,17 @@
        Symbols::Value value = expression_->evaluate(interpreter);
        // Check for duplicate declaration
        if (Symbols::SymbolContainer::instance()->exists(variableName_)) {
            throw std::runtime_error("Variable already declared: " + variableName_ + " File: " + filename_ +
                                     ", Line: " + std::to_string(line_) + ", Column: " + std::to_string(column_));
            throw Exception("Variable already declared: " + variableName_, filename_, line_, column_);
        }
        // Enforce type correctness: the evaluated value must match the declared type
        if (value.getType() != variableType_) {
            using namespace Symbols::Variables;
            std::string expected = TypeToString(variableType_);
            std::string actual   = TypeToString(value.getType());
            throw std::runtime_error("Type mismatch for variable '" + variableName_ +
                                     "': expected '" + expected + "' but got '" + actual +
                                     "' File: " + filename_ + ", Line: " + std::to_string(line_) +
                                     ", Column: " + std::to_string(column_));
            throw Exception(
                "Type mismatch for variable '" + variableName_ +
                "': expected '" + expected + "' but got '" + actual + "'",
                filename_, line_, column_);
        }
        // Create and add the variable symbol
        const auto variable = Symbols::SymbolFactory::createVariable(variableName_, value, ns, variableType_);