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Make it clear bind_in is not public, and inline functions passing large arrays by value to avoid too much copying

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This commit is contained in:
Thom Chiovoloni 2021-01-31 15:40:55 -08:00
parent 2e08f8b31d
commit 19b0772f3f
2 changed files with 11 additions and 10 deletions
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17
src/params.rs
View File

@ -163,7 +163,7 @@ pub trait Params: Sealed {
//
// For now, just hide the function in the docs...
#[doc(hidden)]
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()>;
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()>;
}
// Explicitly impl for empty array. Critically, for `conn.execute([])` to be
@ -172,7 +172,7 @@ pub trait Params: Sealed {
impl Sealed for [&dyn ToSql; 0] {}
impl Params for [&dyn ToSql; 0] {
#[inline]
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
// Note: Can't just return `Ok(())` — `Statement::bind_parameters`
// checks that the right number of params were passed too.
// TODO: we should have tests for `Error::InvalidParameterCount`...
@ -183,7 +183,7 @@ impl Params for [&dyn ToSql; 0] {
impl Sealed for &[&dyn ToSql] {}
impl Params for &[&dyn ToSql] {
#[inline]
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters(self)
}
}
@ -191,7 +191,7 @@ impl Params for &[&dyn ToSql] {
impl Sealed for &[(&str, &dyn ToSql)] {}
impl Params for &[(&str, &dyn ToSql)] {
#[inline]
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters_named(self)
}
}
@ -202,19 +202,20 @@ macro_rules! impl_for_array_ref {
// avoid the compile time hit from making them all inline for now.
impl<T: ToSql + ?Sized> Sealed for &[&T; $N] {}
impl<T: ToSql + ?Sized> Params for &[&T; $N] {
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters(self)
}
}
impl<T: ToSql + ?Sized> Sealed for &[(&str, &T); $N] {}
impl<T: ToSql + ?Sized> Params for &[(&str, &T); $N] {
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters_named(self)
}
}
impl<T: ToSql> Sealed for [T; $N] {}
impl<T: ToSql> Params for [T; $N] {
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
#[inline]
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters(&self)
}
}
@ -351,7 +352,7 @@ where
I::Item: ToSql,
{
#[inline]
fn bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
fn __bind_in(self, stmt: &mut Statement<'_>) -> Result<()> {
stmt.bind_parameters(self.0)
}
}

4
src/statement.rs
View File

@ -82,7 +82,7 @@ impl Statement<'_> {
/// underlying SQLite call fails.
#[inline]
pub fn execute<P: Params>(&mut self, params: P) -> Result<usize> {
params.bind_in(self)?;
params.__bind_in(self)?;
self.execute_with_bound_parameters()
}
@ -221,7 +221,7 @@ impl Statement<'_> {
#[inline]
pub fn query<P: Params>(&mut self, params: P) -> Result<Rows<'_>> {
self.check_readonly()?;
params.bind_in(self)?;
params.__bind_in(self)?;
Ok(Rows::new(self))
}