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Generic Associated Types in Database, replacing HasValueRef, HasArguments, HasStatement (#2973)

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* HasValueRef, HasArguments, HasStatement -> Database GATs

replace the associated types from the generic traits
`HasValueRef<'r>`, `HasArguments<'q>` and `HasStatement<'q>`
with generic associated types in `Database`

* fixup after rebase

---------

Co-authored-by: Austin Bonander <austin.bonander@gmail.com>
This commit is contained in:
nitn3lav 2024-03-14 20:35:52 +01:00 committed by GitHub
parent 936744dfd6
commit 9ba488c831
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GPG key ID: B5690EEEBB952194
33 changed files with 173 additions and 284 deletions
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29
sqlx-core/src/any/database.rs
View file

@ -2,7 +2,7 @@ use crate::any::{
AnyArgumentBuffer, AnyArguments, AnyColumn, AnyConnection, AnyQueryResult, AnyRow,
AnyStatement, AnyTransactionManager, AnyTypeInfo, AnyValue, AnyValueRef,
};
use crate::database::{Database, HasArguments, HasStatement, HasStatementCache, HasValueRef};
use crate::database::{Database, HasStatementCache};
/// Opaque database driver. Capable of being used in place of any SQLx database driver. The actual
/// driver used will be selected at runtime, from the connection url.
@ -23,30 +23,17 @@ impl Database for Any {
type TypeInfo = AnyTypeInfo;
type Value = AnyValue;
type ValueRef<'r> = AnyValueRef<'r>;
type Arguments<'q> = AnyArguments<'q>;
type ArgumentBuffer<'q> = AnyArgumentBuffer<'q>;
type Statement<'q> = AnyStatement<'q>;
const NAME: &'static str = "Any";
const URL_SCHEMES: &'static [&'static str] = &[];
}
impl<'r> HasValueRef<'r> for Any {
type Database = Any;
type ValueRef = AnyValueRef<'r>;
}
impl<'q> HasStatement<'q> for Any {
type Database = Any;
type Statement = AnyStatement<'q>;
}
impl<'q> HasArguments<'q> for Any {
type Database = Any;
type Arguments = AnyArguments<'q>;
type ArgumentBuffer = AnyArgumentBuffer<'q>;
}
// This _may_ be true, depending on the selected database
impl HasStatementCache for Any {}

9
sqlx-core/src/any/row.rs
View file

@ -1,7 +1,7 @@
use crate::any::error::mismatched_types;
use crate::any::{Any, AnyColumn, AnyTypeInfo, AnyTypeInfoKind, AnyValue, AnyValueKind};
use crate::column::{Column, ColumnIndex};
use crate::database::{Database, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::error::Error;
use crate::ext::ustr::UStr;
@ -28,10 +28,7 @@ impl Row for AnyRow {
&self.columns
}
fn try_get_raw<I>(
&self,
index: I,
) -> Result<<Self::Database as HasValueRef<'_>>::ValueRef, Error>
fn try_get_raw<I>(&self, index: I) -> Result<<Self::Database as Database>::ValueRef<'_>, Error>
where
I: ColumnIndex<Self>,
{
@ -141,7 +138,7 @@ impl AnyRow {
}
fn decode<'r, DB: Database, T: Decode<'r, DB>>(
valueref: <DB as HasValueRef<'r>>::ValueRef,
valueref: <DB as Database>::ValueRef<'r>,
) -> crate::Result<T> {
Decode::decode(valueref).map_err(Error::decode)
}

10
sqlx-core/src/any/types/blob.rs
View file

@ -1,5 +1,5 @@
use crate::any::{Any, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind};
use crate::database::{HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -15,14 +15,14 @@ impl Type<Any> for [u8] {
}
impl<'q> Encode<'q, Any> for &'q [u8] {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Blob((*self).into()));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for &'r [u8] {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Blob(Cow::Borrowed(blob)) => Ok(blob),
// This shouldn't happen in practice, it means the user got an `AnyValueRef`
@ -42,14 +42,14 @@ impl Type<Any> for Vec<u8> {
}
impl<'q> Encode<'q, Any> for Vec<u8> {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Blob(Cow::Owned(self.clone())));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for Vec<u8> {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Blob(blob) => Ok(blob.into_owned()),
other => other.unexpected(),

6
sqlx-core/src/any/types/bool.rs
View file

@ -1,5 +1,5 @@
use crate::any::{Any, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind};
use crate::database::{HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -14,14 +14,14 @@ impl Type<Any> for bool {
}
impl<'q> Encode<'q, Any> for bool {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Bool(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for bool {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Bool(b) => Ok(b),
other => other.unexpected(),

6
sqlx-core/src/any/types/float.rs
View file

@ -1,5 +1,5 @@
use crate::any::{Any, AnyArgumentBuffer, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind, AnyValueRef};
use crate::database::{HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -38,14 +38,14 @@ impl Type<Any> for f64 {
}
impl<'q> Encode<'q, Any> for f64 {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Double(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for f64 {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
// Widening is safe
AnyValueKind::Real(r) => Ok(r as f64),

14
sqlx-core/src/any/types/int.rs
View file

@ -1,5 +1,5 @@
use crate::any::{Any, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind};
use crate::database::{HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -18,14 +18,14 @@ impl Type<Any> for i16 {
}
impl<'q> Encode<'q, Any> for i16 {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::SmallInt(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for i16 {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
value.kind.try_integer()
}
}
@ -43,14 +43,14 @@ impl Type<Any> for i32 {
}
impl<'q> Encode<'q, Any> for i32 {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Integer(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for i32 {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
value.kind.try_integer()
}
}
@ -68,14 +68,14 @@ impl Type<Any> for i64 {
}
impl<'q> Encode<'q, Any> for i64 {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::BigInt(*self));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for i64 {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
value.kind.try_integer()
}
}

12
sqlx-core/src/any/types/str.rs
View file

@ -1,6 +1,6 @@
use crate::any::types::str;
use crate::any::{Any, AnyTypeInfo, AnyTypeInfoKind, AnyValueKind};
use crate::database::{HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -16,7 +16,7 @@ impl Type<Any> for str {
}
impl<'a> Encode<'a, Any> for &'a str {
fn encode(self, buf: &mut <Any as HasArguments<'a>>::ArgumentBuffer) -> IsNull
fn encode(self, buf: &mut <Any as Database>::ArgumentBuffer<'a>) -> IsNull
where
Self: Sized,
{
@ -24,13 +24,13 @@ impl<'a> Encode<'a, Any> for &'a str {
IsNull::No
}
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'a>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'a>) -> IsNull {
(*self).encode(buf)
}
}
impl<'a> Decode<'a, Any> for &'a str {
fn decode(value: <Any as HasValueRef<'a>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'a>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Text(Cow::Borrowed(text)) => Ok(text),
// This shouldn't happen in practice, it means the user got an `AnyValueRef`
@ -50,14 +50,14 @@ impl Type<Any> for String {
}
impl<'q> Encode<'q, Any> for String {
fn encode_by_ref(&self, buf: &mut <Any as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <Any as Database>::ArgumentBuffer<'q>) -> IsNull {
buf.0.push(AnyValueKind::Text(Cow::Owned(self.clone())));
IsNull::No
}
}
impl<'r> Decode<'r, Any> for String {
fn decode(value: <Any as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <Any as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
match value.kind {
AnyValueKind::Text(text) => Ok(text.into_owned()),
other => other.unexpected(),

4
sqlx-core/src/any/value.rs
View file

@ -1,7 +1,7 @@
use std::borrow::Cow;
use crate::any::{Any, AnyTypeInfo, AnyTypeInfoKind};
use crate::database::{Database, HasValueRef};
use crate::database::Database;
use crate::error::BoxDynError;
use crate::types::Type;
use crate::value::{Value, ValueRef};
@ -71,7 +71,7 @@ pub struct AnyValueRef<'a> {
impl Value for AnyValue {
type Database = Any;
fn as_ref(&self) -> <Self::Database as HasValueRef<'_>>::ValueRef {
fn as_ref(&self) -> <Self::Database as Database>::ValueRef<'_> {
AnyValueRef {
kind: match &self.kind {
AnyValueKind::Null => AnyValueKind::Null,

12
sqlx-core/src/arguments.rs
View file

@ -1,6 +1,6 @@
//! Types and traits for passing arguments to SQL queries.
use crate::database::{Database, HasArguments};
use crate::database::Database;
use crate::encode::Encode;
use crate::types::Type;
use std::fmt::{self, Write};
@ -23,8 +23,8 @@ pub trait Arguments<'q>: Send + Sized + Default {
}
}
pub trait IntoArguments<'q, DB: HasArguments<'q>>: Sized + Send {
fn into_arguments(self) -> <DB as HasArguments<'q>>::Arguments;
pub trait IntoArguments<'q, DB: Database>: Sized + Send {
fn into_arguments(self) -> <DB as Database>::Arguments<'q>;
}
// NOTE: required due to lack of lazy normalization
@ -45,10 +45,10 @@ macro_rules! impl_into_arguments_for_arguments {
}
/// used by the query macros to prevent supernumerary `.bind()` calls
pub struct ImmutableArguments<'q, DB: HasArguments<'q>>(pub <DB as HasArguments<'q>>::Arguments);
pub struct ImmutableArguments<'q, DB: Database>(pub <DB as Database>::Arguments<'q>);
impl<'q, DB: HasArguments<'q>> IntoArguments<'q, DB> for ImmutableArguments<'q, DB> {
fn into_arguments(self) -> <DB as HasArguments<'q>>::Arguments {
impl<'q, DB: Database> IntoArguments<'q, DB> for ImmutableArguments<'q, DB> {
fn into_arguments(self) -> <DB as Database>::Arguments<'q> {
self.0
}
}

70
sqlx-core/src/database.rs
View file

@ -69,15 +69,7 @@ use crate::value::{Value, ValueRef};
///
/// This trait encapsulates a complete set of traits that implement a driver for a
/// specific database (e.g., MySQL, PostgreSQL).
pub trait Database:
'static
+ Sized
+ Send
+ Debug
+ for<'r> HasValueRef<'r, Database = Self>
+ for<'q> HasArguments<'q, Database = Self>
+ for<'q> HasStatement<'q, Database = Self>
{
pub trait Database: 'static + Sized + Send + Debug {
/// The concrete `Connection` implementation for this database.
type Connection: Connection<Database = Self>;
@ -99,6 +91,17 @@ pub trait Database:
/// The concrete type used to hold an owned copy of the not-yet-decoded value that was
/// received from the database.
type Value: Value<Database = Self> + 'static;
/// The concrete type used to hold a reference to the not-yet-decoded value that has just been
/// received from the database.
type ValueRef<'r>: ValueRef<'r, Database = Self>;
/// The concrete `Arguments` implementation for this database.
type Arguments<'q>: Arguments<'q, Database = Self>;
/// The concrete type used as a buffer for arguments while encoding.
type ArgumentBuffer<'q>;
/// The concrete `Statement` implementation for this database.
type Statement<'q>: Statement<'q, Database = Self>;
/// The display name for this database driver.
const NAME: &'static str;
@ -107,54 +110,5 @@ pub trait Database:
const URL_SCHEMES: &'static [&'static str];
}
/// Associate [`Database`] with a [`ValueRef`](crate::value::ValueRef) of a generic lifetime.
///
/// ---
///
/// The upcoming Rust feature, [Generic Associated Types], should obviate
/// the need for this trait.
///
/// [Generic Associated Types]: https://github.com/rust-lang/rust/issues/44265
pub trait HasValueRef<'r> {
type Database: Database;
/// The concrete type used to hold a reference to the not-yet-decoded value that has just been
/// received from the database.
type ValueRef: ValueRef<'r, Database = Self::Database>;
}
/// Associate [`Database`] with an [`Arguments`](crate::arguments::Arguments) of a generic lifetime.
///
/// ---
///
/// The upcoming Rust feature, [Generic Associated Types], should obviate
/// the need for this trait.
///
/// [Generic Associated Types]: https://github.com/rust-lang/rust/issues/44265
pub trait HasArguments<'q> {
type Database: Database;
/// The concrete `Arguments` implementation for this database.
type Arguments: Arguments<'q, Database = Self::Database>;
/// The concrete type used as a buffer for arguments while encoding.
type ArgumentBuffer;
}
/// Associate [`Database`] with a [`Statement`](crate::statement::Statement) of a generic lifetime.
///
/// ---
///
/// The upcoming Rust feature, [Generic Associated Types], should obviate
/// the need for this trait.
///
/// [Generic Associated Types]: https://github.com/rust-lang/rust/issues/44265
pub trait HasStatement<'q> {
type Database: Database;
/// The concrete `Statement` implementation for this database.
type Statement: Statement<'q, Database = Self::Database>;
}
/// A [`Database`] that maintains a client-side cache of prepared statements.
pub trait HasStatementCache {}

12
sqlx-core/src/decode.rs
View file

@ -1,6 +1,6 @@
//! Provides [`Decode`] for decoding values from the database.
use crate::database::{Database, HasValueRef};
use crate::database::Database;
use crate::error::BoxDynError;
use crate::value::ValueRef;
@ -14,10 +14,10 @@ use crate::value::ValueRef;
///
/// The following showcases how to implement `Decode` to be generic over [`Database`]. The
/// implementation can be marginally simpler if you remove the `DB` type parameter and explicitly
/// use the concrete [`ValueRef`](HasValueRef::ValueRef) and [`TypeInfo`](Database::TypeInfo) types.
/// use the concrete [`ValueRef`](Database::ValueRef) and [`TypeInfo`](Database::TypeInfo) types.
///
/// ```rust
/// # use sqlx_core::database::{Database, HasValueRef};
/// # use sqlx_core::database::{Database};
/// # use sqlx_core::decode::Decode;
/// # use sqlx_core::types::Type;
/// # use std::error::Error;
@ -42,7 +42,7 @@ use crate::value::ValueRef;
/// &'r str: Decode<'r, DB>
/// {
/// fn decode(
/// value: <DB as HasValueRef<'r>>::ValueRef,
/// value: <DB as Database>::ValueRef<'r>,
/// ) -> Result<MyType, Box<dyn Error + 'static + Send + Sync>> {
/// // the interface of ValueRef is largely unstable at the moment
/// // so this is not directly implementable
@ -60,7 +60,7 @@ use crate::value::ValueRef;
/// ```
pub trait Decode<'r, DB: Database>: Sized {
/// Decode a new value of this type using a raw value from the database.
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError>;
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError>;
}
// implement `Decode` for Option<T> for all SQL types
@ -69,7 +69,7 @@ where
DB: Database,
T: Decode<'r, DB>,
{
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
if value.is_null() {
Ok(None)
} else {

14
sqlx-core/src/encode.rs
View file

@ -2,7 +2,7 @@
use std::mem;
use crate::database::{Database, HasArguments};
use crate::database::Database;
/// The return type of [Encode::encode].
pub enum IsNull {
@ -19,7 +19,7 @@ pub enum IsNull {
pub trait Encode<'q, DB: Database> {
/// Writes the value of `self` into `buf` in the expected format for the database.
#[must_use]
fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull
fn encode(self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull
where
Self: Sized,
{
@ -31,7 +31,7 @@ pub trait Encode<'q, DB: Database> {
/// Where possible, make use of `encode` instead as it can take advantage of re-using
/// memory.
#[must_use]
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull;
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull;
fn produces(&self) -> Option<DB::TypeInfo> {
// `produces` is inherently a hook to allow database drivers to produce value-dependent
@ -50,12 +50,12 @@ where
T: Encode<'q, DB>,
{
#[inline]
fn encode(self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode(self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
<T as Encode<DB>>::encode_by_ref(self, buf)
}
#[inline]
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
<&T as Encode<DB>>::encode(self, buf)
}
@ -89,7 +89,7 @@ macro_rules! impl_encode_for_option {
#[inline]
fn encode(
self,
buf: &mut <$DB as $crate::database::HasArguments<'q>>::ArgumentBuffer,
buf: &mut <$DB as $crate::database::Database>::ArgumentBuffer<'q>,
) -> $crate::encode::IsNull {
if let Some(v) = self {
v.encode(buf)
@ -101,7 +101,7 @@ macro_rules! impl_encode_for_option {
#[inline]
fn encode_by_ref(
&self,
buf: &mut <$DB as $crate::database::HasArguments<'q>>::ArgumentBuffer,
buf: &mut <$DB as $crate::database::Database>::ArgumentBuffer<'q>,
) -> $crate::encode::IsNull {
if let Some(v) = self {
v.encode_by_ref(buf)

20
sqlx-core/src/executor.rs
View file

@ -1,4 +1,4 @@
use crate::database::{Database, HasArguments, HasStatement};
use crate::database::Database;
use crate::describe::Describe;
use crate::error::Error;
@ -149,7 +149,7 @@ pub trait Executor<'c>: Send + Debug + Sized {
fn prepare<'e, 'q: 'e>(
self,
query: &'q str,
) -> BoxFuture<'e, Result<<Self::Database as HasStatement<'q>>::Statement, Error>>
) -> BoxFuture<'e, Result<<Self::Database as Database>::Statement<'q>, Error>>
where
'c: 'e,
{
@ -165,7 +165,7 @@ pub trait Executor<'c>: Send + Debug + Sized {
self,
sql: &'q str,
parameters: &'e [<Self::Database as Database>::TypeInfo],
) -> BoxFuture<'e, Result<<Self::Database as HasStatement<'q>>::Statement, Error>>
) -> BoxFuture<'e, Result<<Self::Database as Database>::Statement<'q>, Error>>
where
'c: 'e;
@ -195,14 +195,14 @@ pub trait Execute<'q, DB: Database>: Send + Sized {
fn sql(&self) -> &'q str;
/// Gets the previously cached statement, if available.
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>;
fn statement(&self) -> Option<&DB::Statement<'q>>;
/// Returns the arguments to be bound against the query string.
///
/// Returning `None` for `Arguments` indicates to use a "simple" query protocol and to not
/// prepare the query. Returning `Some(Default::default())` is an empty arguments object that
/// will be prepared (and cached) before execution.
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>;
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>>;
/// Returns `true` if the statement should be cached.
fn persistent(&self) -> bool;
@ -217,12 +217,12 @@ impl<'q, DB: Database> Execute<'q, DB> for &'q str {
}
#[inline]
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
None
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
None
}
@ -232,19 +232,19 @@ impl<'q, DB: Database> Execute<'q, DB> for &'q str {
}
}
impl<'q, DB: Database> Execute<'q, DB> for (&'q str, Option<<DB as HasArguments<'q>>::Arguments>) {
impl<'q, DB: Database> Execute<'q, DB> for (&'q str, Option<<DB as Database>::Arguments<'q>>) {
#[inline]
fn sql(&self) -> &'q str {
self.0
}
#[inline]
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
None
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
self.1.take()
}

6
sqlx-core/src/pool/executor.rs
View file

@ -3,7 +3,7 @@ use futures_core::future::BoxFuture;
use futures_core::stream::BoxStream;
use futures_util::TryStreamExt;
use crate::database::{Database, HasStatement};
use crate::database::Database;
use crate::describe::Describe;
use crate::error::Error;
use crate::executor::{Execute, Executor};
@ -52,7 +52,7 @@ where
self,
sql: &'q str,
parameters: &'e [<Self::Database as Database>::TypeInfo],
) -> BoxFuture<'e, Result<<Self::Database as HasStatement<'q>>::Statement, Error>> {
) -> BoxFuture<'e, Result<<Self::Database as Database>::Statement<'q>, Error>> {
let pool = self.clone();
Box::pin(async move { pool.acquire().await?.prepare_with(sql, parameters).await })
@ -117,7 +117,7 @@ where
// parameters: &'e [<DB as crate::database::Database>::TypeInfo],
// ) -> futures_core::future::BoxFuture<
// 'e,
// Result<<DB as crate::database::HasStatement<'q>>::Statement, crate::error::Error>,
// Result<<DB as crate::database::Database>::Statement<'q>, crate::error::Error>,
// >
// where
// 'c: 'e,

23
sqlx-core/src/query.rs
View file

@ -5,7 +5,7 @@ use futures_core::stream::BoxStream;
use futures_util::{future, StreamExt, TryFutureExt, TryStreamExt};
use crate::arguments::{Arguments, IntoArguments};
use crate::database::{Database, HasArguments, HasStatement, HasStatementCache};
use crate::database::{Database, HasStatementCache};
use crate::encode::Encode;
use crate::error::Error;
use crate::executor::{Execute, Executor};
@ -15,7 +15,7 @@ use crate::types::Type;
/// A single SQL query as a prepared statement. Returned by [`query()`].
#[must_use = "query must be executed to affect database"]
pub struct Query<'q, DB: Database, A> {
pub(crate) statement: Either<&'q str, &'q <DB as HasStatement<'q>>::Statement>,
pub(crate) statement: Either<&'q str, &'q DB::Statement<'q>>,
pub(crate) arguments: Option<A>,
pub(crate) database: PhantomData<DB>,
pub(crate) persistent: bool,
@ -51,7 +51,7 @@ where
}
}
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
match self.statement {
Either::Right(ref statement) => Some(&statement),
Either::Left(_) => None,
@ -59,7 +59,7 @@ where
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
self.arguments.take().map(IntoArguments::into_arguments)
}
@ -69,7 +69,7 @@ where
}
}
impl<'q, DB: Database> Query<'q, DB, <DB as HasArguments<'q>>::Arguments> {
impl<'q, DB: Database> Query<'q, DB, <DB as Database>::Arguments<'q>> {
/// Bind a value for use with this SQL query.
///
/// If the number of times this is called does not match the number of bind parameters that
@ -275,12 +275,12 @@ where
}
#[inline]
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
self.inner.statement()
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
self.inner.take_arguments()
}
@ -465,8 +465,8 @@ where
/// Execute a single SQL query as a prepared statement (explicitly created).
pub fn query_statement<'q, DB>(
statement: &'q <DB as HasStatement<'q>>::Statement,
) -> Query<'q, DB, <DB as HasArguments<'_>>::Arguments>
statement: &'q DB::Statement<'q>,
) -> Query<'q, DB, <DB as Database>::Arguments<'_>>
where
DB: Database,
{
@ -480,7 +480,7 @@ where
/// Execute a single SQL query as a prepared statement (explicitly created), with the given arguments.
pub fn query_statement_with<'q, DB, A>(
statement: &'q <DB as HasStatement<'q>>::Statement,
statement: &'q DB::Statement<'q>,
arguments: A,
) -> Query<'q, DB, A>
where
@ -525,6 +525,7 @@ where
/// // where `conn` is `PgConnection` or `MySqlConnection`
/// // or some other type that implements `Executor`.
/// let results = sqlx::query(&query).fetch_all(&mut conn).await?;
/// # Ok(())
/// # }
/// ```
///
@ -618,7 +619,7 @@ where
///
/// As an additional benefit, query parameters are usually sent in a compact binary encoding instead of a human-readable
/// text encoding, which saves bandwidth.
pub fn query<DB>(sql: &str) -> Query<'_, DB, <DB as HasArguments<'_>>::Arguments>
pub fn query<DB>(sql: &str) -> Query<'_, DB, <DB as Database>::Arguments<'_>>
where
DB: Database,
{

16
sqlx-core/src/query_as.rs
View file

@ -5,7 +5,7 @@ use futures_core::stream::BoxStream;
use futures_util::{StreamExt, TryStreamExt};
use crate::arguments::IntoArguments;
use crate::database::{Database, HasArguments, HasStatement, HasStatementCache};
use crate::database::{Database, HasStatementCache};
use crate::encode::Encode;
use crate::error::Error;
use crate::executor::{Execute, Executor};
@ -32,12 +32,12 @@ where
}
#[inline]
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
self.inner.statement()
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
self.inner.take_arguments()
}
@ -47,7 +47,7 @@ where
}
}
impl<'q, DB: Database, O> QueryAs<'q, DB, O, <DB as HasArguments<'q>>::Arguments> {
impl<'q, DB: Database, O> QueryAs<'q, DB, O, <DB as Database>::Arguments<'q>> {
/// Bind a value for use with this SQL query.
///
/// See [`Query::bind`](Query::bind).
@ -339,7 +339,7 @@ where
///
/// ```
#[inline]
pub fn query_as<'q, DB, O>(sql: &'q str) -> QueryAs<'q, DB, O, <DB as HasArguments<'q>>::Arguments>
pub fn query_as<'q, DB, O>(sql: &'q str) -> QueryAs<'q, DB, O, <DB as Database>::Arguments<'q>>
where
DB: Database,
O: for<'r> FromRow<'r, DB::Row>,
@ -371,8 +371,8 @@ where
// Make a SQL query from a statement, that is mapped to a concrete type.
pub fn query_statement_as<'q, DB, O>(
statement: &'q <DB as HasStatement<'q>>::Statement,
) -> QueryAs<'q, DB, O, <DB as HasArguments<'_>>::Arguments>
statement: &'q DB::Statement<'q>,
) -> QueryAs<'q, DB, O, <DB as Database>::Arguments<'_>>
where
DB: Database,
O: for<'r> FromRow<'r, DB::Row>,
@ -385,7 +385,7 @@ where
// Make a SQL query from a statement, with the given arguments, that is mapped to a concrete type.
pub fn query_statement_as_with<'q, DB, O, A>(
statement: &'q <DB as HasStatement<'q>>::Statement,
statement: &'q DB::Statement<'q>,
arguments: A,
) -> QueryAs<'q, DB, O, A>
where

12
sqlx-core/src/query_builder.rs
View file

@ -5,7 +5,7 @@ use std::fmt::Write;
use std::marker::PhantomData;
use crate::arguments::{Arguments, IntoArguments};
use crate::database::{Database, HasArguments};
use crate::database::Database;
use crate::encode::Encode;
use crate::from_row::FromRow;
use crate::query::Query;
@ -27,7 +27,7 @@ where
{
query: String,
init_len: usize,
arguments: Option<<DB as HasArguments<'args>>::Arguments>,
arguments: Option<<DB as Database>::Arguments<'args>>,
}
impl<'args, DB: Database> Default for QueryBuilder<'args, DB> {
@ -49,7 +49,7 @@ where
/// Start building a query with an initial SQL fragment, which may be an empty string.
pub fn new(init: impl Into<String>) -> Self
where
<DB as HasArguments<'args>>::Arguments: Default,
<DB as Database>::Arguments<'args>: Default,
{
let init = init.into();
@ -445,7 +445,7 @@ where
/// to the state it was in immediately after [`new()`][Self::new].
///
/// Calling any other method but `.reset()` after `.build()` will panic for sanity reasons.
pub fn build(&mut self) -> Query<'_, DB, <DB as HasArguments<'args>>::Arguments> {
pub fn build(&mut self) -> Query<'_, DB, <DB as Database>::Arguments<'args>> {
self.sanity_check();
Query {
@ -470,7 +470,7 @@ where
/// Calling any other method but `.reset()` after `.build()` will panic for sanity reasons.
pub fn build_query_as<'q, T: FromRow<'q, DB::Row>>(
&'q mut self,
) -> QueryAs<'q, DB, T, <DB as HasArguments<'args>>::Arguments> {
) -> QueryAs<'q, DB, T, <DB as Database>::Arguments<'args>> {
QueryAs {
inner: self.build(),
output: PhantomData,
@ -491,7 +491,7 @@ where
/// Calling any other method but `.reset()` after `.build()` will panic for sanity reasons.
pub fn build_query_scalar<'q, T>(
&'q mut self,
) -> QueryScalar<'q, DB, T, <DB as HasArguments<'args>>::Arguments>
) -> QueryScalar<'q, DB, T, <DB as Database>::Arguments<'args>>
where
DB: Database,
(T,): for<'r> FromRow<'r, DB::Row>,

16
sqlx-core/src/query_scalar.rs
View file

@ -3,7 +3,7 @@ use futures_core::stream::BoxStream;
use futures_util::{StreamExt, TryFutureExt, TryStreamExt};
use crate::arguments::IntoArguments;
use crate::database::{Database, HasArguments, HasStatement, HasStatementCache};
use crate::database::{Database, HasStatementCache};
use crate::encode::Encode;
use crate::error::Error;
use crate::executor::{Execute, Executor};
@ -29,12 +29,12 @@ where
self.inner.sql()
}
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&DB::Statement<'q>> {
self.inner.statement()
}
#[inline]
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
self.inner.take_arguments()
}
@ -44,7 +44,7 @@ where
}
}
impl<'q, DB: Database, O> QueryScalar<'q, DB, O, <DB as HasArguments<'q>>::Arguments> {
impl<'q, DB: Database, O> QueryScalar<'q, DB, O, <DB as Database>::Arguments<'q>> {
/// Bind a value for use with this SQL query.
///
/// See [`Query::bind`](crate::query::Query::bind).
@ -320,7 +320,7 @@ where
#[inline]
pub fn query_scalar<'q, DB, O>(
sql: &'q str,
) -> QueryScalar<'q, DB, O, <DB as HasArguments<'q>>::Arguments>
) -> QueryScalar<'q, DB, O, <DB as Database>::Arguments<'q>>
where
DB: Database,
(O,): for<'r> FromRow<'r, DB::Row>,
@ -350,8 +350,8 @@ where
// Make a SQL query from a statement, that is mapped to a concrete value.
pub fn query_statement_scalar<'q, DB, O>(
statement: &'q <DB as HasStatement<'q>>::Statement,
) -> QueryScalar<'q, DB, O, <DB as HasArguments<'_>>::Arguments>
statement: &'q DB::Statement<'q>,
) -> QueryScalar<'q, DB, O, <DB as Database>::Arguments<'_>>
where
DB: Database,
(O,): for<'r> FromRow<'r, DB::Row>,
@ -363,7 +363,7 @@ where
// Make a SQL query from a statement, with the given arguments, that is mapped to a concrete value.
pub fn query_statement_scalar_with<'q, DB, O, A>(
statement: &'q <DB as HasStatement<'q>>::Statement,
statement: &'q DB::Statement<'q>,
arguments: A,
) -> QueryScalar<'q, DB, O, A>
where

11
sqlx-core/src/raw_sql.rs
View file

@ -1,9 +1,10 @@
use crate::database::{Database, HasArguments, HasStatement};
use crate::executor::{Execute, Executor};
use crate::Error;
use either::Either;
use futures_core::stream::BoxStream;
use crate::database::Database;
use crate::executor::{Execute, Executor};
use crate::Error;
// AUTHOR'S NOTE: I was just going to call this API `sql()` and `Sql`, respectively,
// but realized that would be extremely annoying to deal with as a SQLite user
// because IDE smart completion would always recommend the `Sql` type first.
@ -121,11 +122,11 @@ impl<'q, DB: Database> Execute<'q, DB> for RawSql<'q> {
self.0
}
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement> {
fn statement(&self) -> Option<&<DB as Database>::Statement<'q>> {
None
}
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments> {
fn take_arguments(&mut self) -> Option<<DB as Database>::Arguments<'q>> {
None
}

7
sqlx-core/src/row.rs
View file

@ -1,5 +1,5 @@
use crate::column::ColumnIndex;
use crate::database::{Database, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::error::{mismatched_types, Error};
@ -171,10 +171,7 @@ pub trait Row: Unpin + Send + Sync + 'static {
/// [`ColumnNotFound`]: Error::ColumnNotFound
/// [`ColumnIndexOutOfBounds`]: Error::ColumnIndexOutOfBounds
///
fn try_get_raw<I>(
&self,
index: I,
) -> Result<<Self::Database as HasValueRef<'_>>::ValueRef, Error>
fn try_get_raw<I>(&self, index: I) -> Result<<Self::Database as Database>::ValueRef<'_>, Error>
where
I: ColumnIndex<Self>;
}

14
sqlx-core/src/statement.rs
View file

@ -1,6 +1,6 @@
use crate::arguments::IntoArguments;
use crate::column::ColumnIndex;
use crate::database::{Database, HasArguments, HasStatement};
use crate::database::Database;
use crate::error::Error;
use crate::from_row::FromRow;
use crate::query::Query;
@ -21,7 +21,7 @@ pub trait Statement<'q>: Send + Sync {
/// Creates an owned statement from this statement reference. This copies
/// the original SQL text.
fn to_owned(&self) -> <Self::Database as HasStatement<'static>>::Statement;
fn to_owned(&self) -> <Self::Database as Database>::Statement<'static>;
/// Get the original SQL text used to create this statement.
fn sql(&self) -> &str;
@ -59,7 +59,7 @@ pub trait Statement<'q>: Send + Sync {
Ok(&self.columns()[index.index(self)?])
}
fn query(&self) -> Query<'_, Self::Database, <Self::Database as HasArguments<'_>>::Arguments>;
fn query(&self) -> Query<'_, Self::Database, <Self::Database as Database>::Arguments<'_>>;
fn query_with<'s, A>(&'s self, arguments: A) -> Query<'s, Self::Database, A>
where
@ -67,7 +67,7 @@ pub trait Statement<'q>: Send + Sync {
fn query_as<O>(
&self,
) -> QueryAs<'_, Self::Database, O, <Self::Database as HasArguments<'_>>::Arguments>
) -> QueryAs<'_, Self::Database, O, <Self::Database as Database>::Arguments<'_>>
where
O: for<'r> FromRow<'r, <Self::Database as Database>::Row>;
@ -78,7 +78,7 @@ pub trait Statement<'q>: Send + Sync {
fn query_scalar<O>(
&self,
) -> QueryScalar<'_, Self::Database, O, <Self::Database as HasArguments<'_>>::Arguments>
) -> QueryScalar<'_, Self::Database, O, <Self::Database as Database>::Arguments<'_>>
where
(O,): for<'r> FromRow<'r, <Self::Database as Database>::Row>;
@ -111,7 +111,7 @@ macro_rules! impl_statement_query {
'_,
Self::Database,
O,
<Self::Database as $crate::database::HasArguments<'_>>::Arguments,
<Self::Database as $crate::database::Database>::Arguments<'_>,
>
where
O: for<'r> $crate::from_row::FromRow<
@ -144,7 +144,7 @@ macro_rules! impl_statement_query {
'_,
Self::Database,
O,
<Self::Database as $crate::database::HasArguments<'_>>::Arguments,
<Self::Database as $crate::database::Database>::Arguments<'_>,
>
where
(O,): for<'r> $crate::from_row::FromRow<

4
sqlx-core/src/testing/fixtures.rs
View file

@ -1,6 +1,6 @@
//! TODO: automatic test fixture capture
use crate::database::{Database, HasArguments};
use crate::database::Database;
use crate::query_builder::QueryBuilder;
@ -111,7 +111,7 @@ impl<DB: Database> FixtureSnapshot<DB> {
/// which appends to an internal string.
impl<DB: Database> ToString for Fixture<DB>
where
for<'a> <DB as HasArguments<'a>>::Arguments: Default,
for<'a> <DB as Database>::Arguments<'a>: Default,
{
fn to_string(&self) -> String {
let mut query = QueryBuilder::<DB>::new("");

2
sqlx-core/src/transaction.rs
View file

@ -140,7 +140,7 @@ where
// ) -> futures_core::future::BoxFuture<
// 'e,
// Result<
// <Self::Database as crate::database::HasStatement<'q>>::Statement,
// <Self::Database as crate::database::Database>::Statement<'q>,
// crate::error::Error,
// >,
// >

8
sqlx-core/src/types/bstr.rs
View file

@ -1,5 +1,5 @@
/// Conversions between `bstr` types and SQL types.
use crate::database::{Database, HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -27,7 +27,7 @@ where
DB: Database,
Vec<u8>: Decode<'r, DB>,
{
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
<Vec<u8> as Decode<DB>>::decode(value).map(BString::from)
}
}
@ -37,7 +37,7 @@ where
DB: Database,
&'q [u8]: Encode<'q, DB>,
{
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
<&[u8] as Encode<DB>>::encode(self.as_bytes(), buf)
}
}
@ -47,7 +47,7 @@ where
DB: Database,
Vec<u8>: Encode<'q, DB>,
{
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
<Vec<u8> as Encode<DB>>::encode(self.as_bytes().to_vec(), buf)
}
}

8
sqlx-core/src/types/json.rs
View file

@ -4,7 +4,7 @@ use serde::{Deserialize, Serialize};
pub use serde_json::value::RawValue as JsonRawValue;
pub use serde_json::Value as JsonValue;
use crate::database::{Database, HasArguments, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::encode::{Encode, IsNull};
use crate::error::BoxDynError;
@ -141,7 +141,7 @@ where
for<'a> Json<&'a Self>: Encode<'q, DB>,
DB: Database,
{
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
<Json<&Self> as Encode<'q, DB>>::encode(Json(self), buf)
}
}
@ -151,7 +151,7 @@ where
Json<Self>: Decode<'r, DB>,
DB: Database,
{
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
<Json<Self> as Decode<DB>>::decode(value).map(|item| item.0)
}
}
@ -177,7 +177,7 @@ where
Json<Self>: Decode<'r, DB>,
DB: Database,
{
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
<Json<Self> as Decode<DB>>::decode(value).map(|item| item.0)
}
}

4
sqlx-core/src/types/text.rs
View file

@ -115,7 +115,7 @@ where
String: Encode<'q, DB>,
DB: Database,
{
fn encode_by_ref(&self, buf: &mut <DB as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
fn encode_by_ref(&self, buf: &mut <DB as Database>::ArgumentBuffer<'q>) -> IsNull {
self.0.to_string().encode(buf)
}
}
@ -127,7 +127,7 @@ where
&'r str: Decode<'r, DB>,
DB: Database,
{
fn decode(value: <DB as HasValueRef<'r>>::ValueRef) -> Result<Self, BoxDynError> {
fn decode(value: <DB as Database>::ValueRef<'r>) -> Result<Self, BoxDynError> {
Ok(Text(<&'r str as Decode<'r, DB>>::decode(value)?.parse()?))
}
}

4
sqlx-core/src/value.rs
View file

@ -1,4 +1,4 @@
use crate::database::{Database, HasValueRef};
use crate::database::Database;
use crate::decode::Decode;
use crate::error::{mismatched_types, Error};
use crate::type_info::TypeInfo;
@ -10,7 +10,7 @@ pub trait Value {
type Database: Database;
/// Get this value as a reference.
fn as_ref(&self) -> <Self::Database as HasValueRef<'_>>::ValueRef;
fn as_ref(&self) -> <Self::Database as Database>::ValueRef<'_>;
/// Get the type information for this value.
fn type_info(&self) -> Cow<'_, <Self::Database as Database>::TypeInfo>;

4
sqlx-macros-core/src/derives/decode.rs
View file

@ -76,7 +76,7 @@ fn expand_derive_decode_transparent(
#[automatically_derived]
impl #impl_generics ::sqlx::decode::Decode<'r, DB> for #ident #ty_generics #where_clause {
fn decode(
value: <DB as ::sqlx::database::HasValueRef<'r>>::ValueRef,
value: <DB as ::sqlx::database::Database>::ValueRef<'r>,
) -> ::std::result::Result<
Self,
::std::boxed::Box<
@ -118,7 +118,7 @@ fn expand_derive_decode_weak_enum(
#repr: ::sqlx::decode::Decode<'r, DB>,
{
fn decode(
value: <DB as ::sqlx::database::HasValueRef<'r>>::ValueRef,
value: <DB as ::sqlx::database::Database>::ValueRef<'r>,
) -> ::std::result::Result<
Self,
::std::boxed::Box<

6
sqlx-macros-core/src/derives/encode.rs
View file

@ -84,7 +84,7 @@ fn expand_derive_encode_transparent(
{
fn encode_by_ref(
&self,
buf: &mut <DB as ::sqlx::database::HasArguments<#lifetime>>::ArgumentBuffer,
buf: &mut <DB as ::sqlx::database::Database>::ArgumentBuffer<#lifetime>,
) -> ::sqlx::encode::IsNull {
<#ty as ::sqlx::encode::Encode<#lifetime, DB>>::encode_by_ref(&self.0, buf)
}
@ -123,7 +123,7 @@ fn expand_derive_encode_weak_enum(
{
fn encode_by_ref(
&self,
buf: &mut <DB as ::sqlx::database::HasArguments<'q>>::ArgumentBuffer,
buf: &mut <DB as ::sqlx::database::Database>::ArgumentBuffer<'q>,
) -> ::sqlx::encode::IsNull {
let value = match self {
#(#values)*
@ -173,7 +173,7 @@ fn expand_derive_encode_strong_enum(
{
fn encode_by_ref(
&self,
buf: &mut <DB as ::sqlx::database::HasArguments<'q>>::ArgumentBuffer,
buf: &mut <DB as ::sqlx::database::Database>::ArgumentBuffer<'q>,
) -> ::sqlx::encode::IsNull {
let val = match self {
#(#value_arms)*

4
sqlx-macros-core/src/query/args.rs
View file

@ -17,7 +17,7 @@ pub fn quote_args<DB: DatabaseExt>(
if input.arg_exprs.is_empty() {
return Ok(quote! {
let query_args = <#db_path as ::sqlx::database::HasArguments>::Arguments::default();
let query_args = <#db_path as ::sqlx::database::Database>::Arguments::<'_>::default();
});
}
@ -104,7 +104,7 @@ pub fn quote_args<DB: DatabaseExt>(
#args_check
let mut query_args = <#db_path as ::sqlx::database::HasArguments>::Arguments::default();
let mut query_args = <#db_path as ::sqlx::database::Database>::Arguments::<'_>::default();
query_args.reserve(
#args_count,
0 #(+ ::sqlx::encode::Encode::<#db_path>::size_hint(#arg_name))*

30
sqlx-mysql/src/database.rs
View file

@ -3,9 +3,7 @@ use crate::{
MySqlArguments, MySqlColumn, MySqlConnection, MySqlQueryResult, MySqlRow, MySqlStatement,
MySqlTransactionManager, MySqlTypeInfo,
};
pub(crate) use sqlx_core::database::{
Database, HasArguments, HasStatement, HasStatementCache, HasValueRef,
};
pub(crate) use sqlx_core::database::{Database, HasStatementCache};
/// MySQL database driver.
#[derive(Debug)]
@ -25,30 +23,16 @@ impl Database for MySql {
type TypeInfo = MySqlTypeInfo;
type Value = MySqlValue;
type ValueRef<'r> = MySqlValueRef<'r>;
type Arguments<'q> = MySqlArguments;
type ArgumentBuffer<'q> = Vec<u8>;
type Statement<'q> = MySqlStatement<'q>;
const NAME: &'static str = "MySQL";
const URL_SCHEMES: &'static [&'static str] = &["mysql", "mariadb"];
}
impl<'r> HasValueRef<'r> for MySql {
type Database = MySql;
type ValueRef = MySqlValueRef<'r>;
}
impl HasArguments<'_> for MySql {
type Database = MySql;
type Arguments = MySqlArguments;
type ArgumentBuffer = Vec<u8>;
}
impl<'q> HasStatement<'q> for MySql {
type Database = MySql;
type Statement = MySqlStatement<'q>;
}
impl HasStatementCache for MySql {}

30
sqlx-postgres/src/database.rs
View file

@ -5,9 +5,7 @@ use crate::{
PgTypeInfo,
};
pub(crate) use sqlx_core::database::{
Database, HasArguments, HasStatement, HasStatementCache, HasValueRef,
};
pub(crate) use sqlx_core::database::{Database, HasStatementCache};
/// PostgreSQL database driver.
#[derive(Debug)]
@ -27,30 +25,16 @@ impl Database for Postgres {
type TypeInfo = PgTypeInfo;
type Value = PgValue;
type ValueRef<'r> = PgValueRef<'r>;
type Arguments<'q> = PgArguments;
type ArgumentBuffer<'q> = PgArgumentBuffer;
type Statement<'q> = PgStatement<'q>;
const NAME: &'static str = "PostgreSQL";
const URL_SCHEMES: &'static [&'static str] = &["postgres", "postgresql"];
}
impl<'r> HasValueRef<'r> for Postgres {
type Database = Postgres;
type ValueRef = PgValueRef<'r>;
}
impl HasArguments<'_> for Postgres {
type Database = Postgres;
type Arguments = PgArguments;
type ArgumentBuffer = PgArgumentBuffer;
}
impl<'q> HasStatement<'q> for Postgres {
type Database = Postgres;
type Statement = PgStatement<'q>;
}
impl HasStatementCache for Postgres {}

30
sqlx-sqlite/src/database.rs
View file

@ -1,6 +1,4 @@
pub(crate) use sqlx_core::database::{
Database, HasArguments, HasStatement, HasStatementCache, HasValueRef,
};
pub(crate) use sqlx_core::database::{Database, HasStatementCache};
use crate::{
SqliteArgumentValue, SqliteArguments, SqliteColumn, SqliteConnection, SqliteQueryResult,
@ -26,30 +24,16 @@ impl Database for Sqlite {
type TypeInfo = SqliteTypeInfo;
type Value = SqliteValue;
type ValueRef<'r> = SqliteValueRef<'r>;
type Arguments<'q> = SqliteArguments<'q>;
type ArgumentBuffer<'q> = Vec<SqliteArgumentValue<'q>>;
type Statement<'q> = SqliteStatement<'q>;
const NAME: &'static str = "SQLite";
const URL_SCHEMES: &'static [&'static str] = &["sqlite"];
}
impl<'r> HasValueRef<'r> for Sqlite {
type Database = Sqlite;
type ValueRef = SqliteValueRef<'r>;
}
impl<'q> HasArguments<'q> for Sqlite {
type Database = Sqlite;
type Arguments = SqliteArguments<'q>;
type ArgumentBuffer = Vec<SqliteArgumentValue<'q>>;
}
impl<'q> HasStatement<'q> for Sqlite {
type Database = Sqlite;
type Statement = SqliteStatement<'q>;
}
impl HasStatementCache for Sqlite {}