refactorings

.vscode/c_cpp_properties.json

@@ -10,13 +10,12 @@
             },
             "includePath": [
                 "${workspaceFolder}/**",
-                "${workspaceFolder}/stdlib",
                 "/usr/local/opt/openssl/include",
                 "${workspaceFolder}"
             ],
             "defines": [],
             "macFrameworkPath": [
-                "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks"
+                "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks"
             ],
             "compilerPath": "/usr/bin/clang",
             "cStandard": "c11",

Readme.md

@@ -1,3 +1,6 @@
+### WIP
+compare in row.cpp shoud take into account m_visible
+
 ### TODO
 - create local_install.sh
 
@@ -14,7 +17,6 @@
 	- add drop m_index
 - support for joining
 
-- use string_to_double and string_to_long (from Table) everywhere
 - add const wherever should be
 - use static methods where posible
 - use references where pointer cannot be nullptr

main.cpp

@@ -117,7 +117,7 @@ void repl() {
 				result->print();
 
 				code += input + "\n";
-			} catch (std::exception &e) {
+			} catch (const std::exception &e) {
 				std::cerr << e.what() << std::endl;
 			}
 		}

settings.cpp

@@ -19,7 +19,7 @@ std::vector<std::pair<std::string, std::string>> Settings::m_settings =
 long Settings::string_to_long(const std::string &intstr) {
 	try {
 		return std::stol(intstr);
-	} catch (std::invalid_argument &e) {
+	} catch (const std::invalid_argument &e) {
 		throw Exception("error parsing as integer: " + intstr);
 	}
 }

table.cpp

@@ -183,7 +183,7 @@ void Table::commit_row(Row &row) {
 	try {
 		validate_row(row);
 		index_row(row);
-	} catch (Exception &e) {
+	} catch (const Exception &e) {
 		throw e;
 	}
 }
@@ -333,8 +333,9 @@ Index * Table::get_index_for_column(const std::string &col_name) {
 	return (it != m_indexes.end()) ? &(*it) : nullptr;
 }
 
-bool Table::empty() {
+bool Table::empty() const {
 	if (m_rows.empty())	return true;
+
 	for (const auto & r : m_rows)
 		if (r.is_visible()) return false;
 

table.h

@@ -59,7 +59,7 @@ struct Table {
 	Index * get_index(const std::string &index_name);
 	Index * get_index_for_column(const std::string &col_name);
 
-	bool empty();
+	bool empty() const;
 
 	struct rows_scanner {
 		explicit rows_scanner(Table *tbl) : m_use_rowids(false), m_table(tbl), m_fscan_itr(tbl->m_rows.begin()) {}

usql.cpp

@@ -11,7 +11,7 @@ std::unique_ptr<Table> USql::execute(const std::string &command) {
 		std::unique_ptr<Node> node = m_parser.parse(command);
 		return execute(*node);
 
-	} catch (std::exception &e) {
+	} catch (const std::exception &e) {
 		return create_stmt_result_table(-1, e.what(), 0);
 	}
 

usql_dml.cpp

@@ -4,6 +4,7 @@
 
 #include <algorithm>
 
+
 namespace usql {
 	
 

usql_function.cpp

@@ -82,8 +82,7 @@ std::unique_ptr<ValueNode> USql::pp_function(const std::vector<std::unique_ptr<V
 	return std::make_unique<StringValueNode>(parsed_value->getStringValue());
 }
 
-std::unique_ptr<ValueNode>
-USql::max_function(const std::vector<std::unique_ptr<ValueNode>> &evaluatedPars, const ColDefNode *col_def_node, ColValue *agg_func_value) {
+std::unique_ptr<ValueNode> USql::max_function(const std::vector<std::unique_ptr<ValueNode>> &evaluatedPars, const ColDefNode *col_def_node, ColValue *agg_func_value) {
 	if (col_def_node->type == ColumnType::integer_type || col_def_node->type == ColumnType::date_type) {
 		if (!evaluatedPars[0]->isNull()) {
 			auto val = evaluatedPars[0]->getIntegerValue();