53 lines
2.2 KiB
C++
53 lines
2.2 KiB
C++
#include <hex/lang/validator.hpp>
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#include <unordered_set>
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#include <string>
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#include <hex/helpers/utils.hpp>
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namespace hex::lang {
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Validator::Validator() {
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}
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bool Validator::validate(const std::vector<ASTNode*>& ast) {
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std::unordered_set<std::string> identifiers;
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try {
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for (const auto &node : ast) {
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if (node == nullptr)
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throwValidateError("nullptr in AST. This is a bug!", 1);
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if (auto variableDeclNode = dynamic_cast<ASTNodeVariableDecl*>(node); variableDeclNode != nullptr) {
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if (!identifiers.insert(variableDeclNode->getName().data()).second)
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throwValidateError(hex::format("redefinition of identifier '{0}'", variableDeclNode->getName().data()), variableDeclNode->getLineNumber());
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this->validate({ variableDeclNode->getType() });
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} else if (auto typeDeclNode = dynamic_cast<ASTNodeTypeDecl*>(node); typeDeclNode != nullptr) {
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if (!identifiers.insert(typeDeclNode->getName().data()).second)
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throwValidateError(hex::format("redefinition of identifier '{0}'", typeDeclNode->getName().data()), typeDeclNode->getLineNumber());
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this->validate({ typeDeclNode->getType() });
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} else if (auto structNode = dynamic_cast<ASTNodeStruct*>(node); structNode != nullptr) {
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this->validate(structNode->getMembers());
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} else if (auto unionNode = dynamic_cast<ASTNodeUnion*>(node); unionNode != nullptr) {
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this->validate(unionNode->getMembers());
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} else if (auto enumNode = dynamic_cast<ASTNodeEnum*>(node); enumNode != nullptr) {
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std::unordered_set<std::string> enumIdentifiers;
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for (auto &[name, value] : enumNode->getEntries()) {
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if (!enumIdentifiers.insert(name).second)
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throwValidateError(hex::format("redefinition of enum constant '{0}'", name.c_str()), value->getLineNumber());
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}
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}
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}
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} catch (ValidatorError &e) {
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this->m_error = e;
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return false;
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}
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return true;
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}
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} |