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Sqlite: Flatten calls inside functions

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The code is doing quite some template magic. This helps the compiler to
be persistent in removing intermediate function calls. So it would look
like handwritten code.

Change-Id: Idbe152b9256f5ea23d5a4c42ea2cfd117346d3a7
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
This commit is contained in:
Marco Bubke
2023-08-27 16:28:24 +02:00
parent a55efac890
commit 2a301d41c4
3 changed files with 28 additions and 24 deletions
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26
src/libs/sqlite/sqlitebasestatement.h
View File

@@ -27,6 +27,12 @@
using std::int64_t;
#ifdef Q_CC_MSVC
#define FLATTEN [[msvc::flatten]]
#else
#define FLATTEN [[gnu::flatten]]
#endif
namespace Sqlite {
class Database;
@@ -150,7 +156,7 @@ public:
using BaseStatement::BaseStatement;
StatementImplementation(StatementImplementation &&) = default;
void execute()
FLATTEN void execute()
{
Resetter resetter{this};
BaseStatement::next();
@@ -166,7 +172,7 @@ public:
}
template<typename... ValueType>
void write(const ValueType&... values)
FLATTEN void write(const ValueType &...values)
{
Resetter resetter{this};
bindValues(values...);
@@ -190,7 +196,7 @@ public:
std::size_t capacity = 32,
typename = std::enable_if_t<is_container<Container>::value>,
typename... QueryTypes>
auto values(const QueryTypes &...queryValues)
FLATTEN auto values(const QueryTypes &...queryValues)
{
Resetter resetter{this};
Container resultValues;
@@ -211,7 +217,7 @@ public:
template<typename...> typename Container = std::vector,
typename = std::enable_if_t<!is_container<ResultType>::value>,
typename... QueryTypes>
auto values(const QueryTypes &...queryValues)
FLATTEN auto values(const QueryTypes &...queryValues)
{
return values<Container<ResultType>, capacity>(queryValues...);
}
@@ -231,7 +237,7 @@ public:
}
template<typename ResultType, typename... QueryTypes>
auto optionalValue(const QueryTypes &...queryValues)
FLATTEN auto optionalValue(const QueryTypes &...queryValues)
{
Resetter resetter{this};
std::optional<ResultType> resultValue;
@@ -245,7 +251,7 @@ public:
}
template<typename Type>
static auto toValue(Utils::SmallStringView sqlStatement, Database &database)
FLATTEN static auto toValue(Utils::SmallStringView sqlStatement, Database &database)
{
StatementImplementation statement(sqlStatement, database);
@@ -257,7 +263,7 @@ public:
}
template<typename Callable, typename... QueryTypes>
void readCallback(Callable &&callable, const QueryTypes &...queryValues)
FLATTEN void readCallback(Callable &&callable, const QueryTypes &...queryValues)
{
Resetter resetter{this};
@@ -272,7 +278,7 @@ public:
}
template<typename Container, typename... QueryTypes>
void readTo(Container &container, const QueryTypes &...queryValues)
FLATTEN void readTo(Container &container, const QueryTypes &...queryValues)
{
Resetter resetter{this};
@@ -283,13 +289,13 @@ public:
}
template<typename ResultType, typename... QueryTypes>
auto range(const QueryTypes &...queryValues)
FLATTEN auto range(const QueryTypes &...queryValues)
{
return SqliteResultRange<ResultType>{*this, queryValues...};
}
template<typename ResultType, typename... QueryTypes>
auto rangeWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto rangeWithTransaction(const QueryTypes &...queryValues)
{
return SqliteResultRangeWithTransaction<ResultType>{*this, queryValues...};
}

10
src/libs/sqlite/sqlitereadstatement.h
View File

@@ -32,7 +32,7 @@ public:
using Base::values;
template<typename ResultType, typename... QueryTypes>
auto valueWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto valueWithTransaction(const QueryTypes &...queryValues)
{
return withDeferredTransaction(Base::database(), [&] {
return Base::template value<ResultType>(queryValues...);
@@ -40,7 +40,7 @@ public:
}
template<typename ResultType, typename... QueryTypes>
auto optionalValueWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto optionalValueWithTransaction(const QueryTypes &...queryValues)
{
return withDeferredTransaction(Base::database(), [&] {
return Base::template optionalValue<ResultType>(queryValues...);
@@ -48,7 +48,7 @@ public:
}
template<typename ResultType, std::size_t capacity = 32, typename... QueryTypes>
auto valuesWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto valuesWithTransaction(const QueryTypes &...queryValues)
{
return withDeferredTransaction(Base::database(), [&] {
return Base::template values<ResultType, capacity>(queryValues...);
@@ -56,7 +56,7 @@ public:
}
template<typename Callable, typename... QueryTypes>
void readCallbackWithTransaction(Callable &&callable, const QueryTypes &...queryValues)
FLATTEN void readCallbackWithTransaction(Callable &&callable, const QueryTypes &...queryValues)
{
withDeferredTransaction(Base::database(), [&] {
Base::readCallback(std::forward<Callable>(callable), queryValues...);
@@ -64,7 +64,7 @@ public:
}
template<typename Container, typename... QueryTypes>
void readToWithTransaction(Container &container, const QueryTypes &...queryValues)
FLATTEN void readToWithTransaction(Container &container, const QueryTypes &...queryValues)
{
withDeferredTransaction(Base::database(), [&] { Base::readTo(container, queryValues...); });
}

16
src/libs/sqlite/sqlitereadwritestatement.h
View File

@@ -32,7 +32,7 @@ public:
using Base::write;
template<typename ResultType, typename... QueryTypes>
auto valueWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto valueWithTransaction(const QueryTypes &...queryValues)
{
return withImmediateTransaction(Base::database(), [&] {
return Base::template value<ResultType>(queryValues...);
@@ -40,17 +40,15 @@ public:
}
template<typename ResultType, typename... QueryTypes>
auto optionalValueWithTransaction(const QueryTypes &...queryValues)
FLATTEN auto optionalValueWithTransaction(const QueryTypes &...queryValues)
{
return withImmediateTransaction(Base::database(), [&] {
return Base::template optionalValue<ResultType>(queryValues...);
});
}
template<typename ResultType,
std::size_t capacity = 32,
typename... QueryTypes>
auto valuesWithTransaction(const QueryTypes &...queryValues)
template<typename ResultType, std::size_t capacity = 32, typename... QueryTypes>
FLATTEN auto valuesWithTransaction(const QueryTypes &...queryValues)
{
return withImmediateTransaction(Base::database(), [&] {
return Base::template values<ResultType, capacity>(queryValues...);
@@ -58,7 +56,7 @@ public:
}
template<typename Callable, typename... QueryTypes>
void readCallbackWithTransaction(Callable &&callable, const QueryTypes &...queryValues)
FLATTEN void readCallbackWithTransaction(Callable &&callable, const QueryTypes &...queryValues)
{
withImmediateTransaction(Base::database(), [&] {
Base::readCallback(std::forward<Callable>(callable), queryValues...);
@@ -66,14 +64,14 @@ public:
}
template<typename Container, typename... QueryTypes>
void readToWithTransaction(Container &container, const QueryTypes &...queryValues)
FLATTEN void readToWithTransaction(Container &container, const QueryTypes &...queryValues)
{
withImmediateTransaction(Base::database(), [&] {
Base::readTo(container, queryValues...);
});
}
void executeWithTransaction()
FLATTEN void executeWithTransaction()
{
withImmediateTransaction(Base::database(), [&] {
Base::execute();