refactor: lift type mappings into driver crates (#2970)

Motivated by #2917

sqlx-sqlite/src/lib.rs

@@ -65,6 +65,7 @@ mod query_result;
 mod row;
 mod statement;
 mod transaction;
+mod type_checking;
 mod type_info;
 pub mod types;
 mod value;

sqlx-sqlite/src/type_checking.rs

@@ -0,0 +1,46 @@
+#[allow(unused_imports)]
+use sqlx_core as sqlx;
+
+use crate::Sqlite;
+
+// f32 is not included below as REAL represents a floating point value
+// stored as an 8-byte IEEE floating point number (i.e. an f64)
+// For more info see: https://www.sqlite.org/datatype3.html#storage_classes_and_datatypes
+impl_type_checking!(
+    Sqlite {
+        bool,
+        i32,
+        i64,
+        f64,
+        String,
+        Vec<u8>,
+
+        #[cfg(all(feature = "chrono", not(feature = "time")))]
+        sqlx::types::chrono::NaiveDate,
+
+        #[cfg(all(feature = "chrono", not(feature = "time")))]
+        sqlx::types::chrono::NaiveDateTime,
+
+        #[cfg(all(feature = "chrono", not(feature = "time")))]
+        sqlx::types::chrono::DateTime<sqlx::types::chrono::Utc> | sqlx::types::chrono::DateTime<_>,
+
+        #[cfg(feature = "time")]
+        sqlx::types::time::OffsetDateTime,
+
+        #[cfg(feature = "time")]
+        sqlx::types::time::PrimitiveDateTime,
+
+        #[cfg(feature = "time")]
+        sqlx::types::time::Date,
+
+        #[cfg(feature = "uuid")]
+        sqlx::types::Uuid,
+    },
+    ParamChecking::Weak,
+    // While there are type integrations that must be enabled via Cargo feature,
+    // SQLite's type system doesn't actually have any type that we cannot decode by default.
+    //
+    // The type integrations simply allow the user to skip some intermediate representation,
+    // which is usually TEXT.
+    feature-types: _info => None,
+);