More flexible sendability (#118)

* Drop sendable requirements.

* wip

---------

Co-authored-by: Brandon Williams <mbrandonw@hey.com>

Author: stephencelis

Sources/SharingGRDBCore/FetchAll.swift

@@ -511,7 +511,10 @@ extension FetchAll: Equatable where Element: Equatable {
 #endif
 
 private struct FetchAllStatementValueRequest<Value: QueryRepresentable>: StatementKeyRequest {
-  let statement: any StructuredQueriesCore.Statement<Value>
+  let statement: SQLQueryExpression<Value>
+  init(statement: some StructuredQueriesCore.Statement<Value>) {
+    self.statement = SQLQueryExpression(statement)
+  }
   func fetch(_ db: Database) throws -> [Value.QueryOutput] {
     try statement.fetchAll(db)
   }

Sources/SharingGRDBCore/FetchOne.swift

@@ -1201,9 +1201,9 @@ extension FetchOne: Equatable where Value: Equatable {
 #endif
 
 private struct FetchOneStatementValueRequest<Value: QueryRepresentable>: StatementKeyRequest {
-  let statement: any StructuredQueriesCore.Statement<Value>
-  init(statement: any StructuredQueriesCore.Statement<Value>) {
-    self.statement = statement
+  let statement: SQLQueryExpression<Value>
+  init(statement: some StructuredQueriesCore.Statement<Value>) {
+    self.statement = SQLQueryExpression(statement)
   }
   func fetch(_ db: Database) throws -> Value.QueryOutput {
     guard let result = try statement.fetchOne(db)
@@ -1215,7 +1215,10 @@ private struct FetchOneStatementValueRequest<Value: QueryRepresentable>: Stateme
 private struct FetchOneStatementOptionalValueRequest<Value: QueryRepresentable>:
   StatementKeyRequest
 {
-  let statement: any StructuredQueriesCore.Statement<Value>
+  let statement: SQLQueryExpression<Value>
+  init(statement: some StructuredQueriesCore.Statement<Value>) {
+    self.statement = SQLQueryExpression(statement)
+  }
   func fetch(_ db: Database) throws -> Value.QueryOutput? {
     try statement.fetchOne(db)
   }
@@ -1224,7 +1227,10 @@ private struct FetchOneStatementOptionalValueRequest<Value: QueryRepresentable>:
 private struct FetchOneStatementOptionalProtocolRequest<
   Value: QueryRepresentable & _OptionalProtocol
 >: StatementKeyRequest where Value.QueryOutput: _OptionalProtocol {
-  let statement: any StructuredQueriesCore.Statement<Value>
+  let statement: SQLQueryExpression<Value>
+  init(statement: some StructuredQueriesCore.Statement<Value>) {
+    self.statement = SQLQueryExpression(statement)
+  }
   func fetch(_ db: Database) throws -> Value.QueryOutput {
     try statement.fetchOne(db) ?? ._none
   }

Sources/SharingGRDBCore/Internal/Deprecations.swift

@@ -277,7 +277,10 @@ extension FetchAll {
 
 @available(iOS 17, macOS 14, tvOS 17, watchOS 10, *)
 private struct FetchAllStatementPackRequest<each Value: QueryRepresentable>: StatementKeyRequest {
-  let statement: any StructuredQueriesCore.Statement<(repeat each Value)>
+  let statement: SQLQueryExpression<(repeat each Value)>
+  init(statement: some StructuredQueriesCore.Statement<(repeat each Value)>) {
+    self.statement = SQLQueryExpression(statement)
+  }
   func fetch(_ db: Database) throws -> [(repeat (each Value).QueryOutput)] {
     try statement.fetchAll(db)
   }
@@ -540,7 +543,10 @@ extension FetchOne {
 
 @available(iOS 17, macOS 14, tvOS 17, watchOS 10, *)
 private struct FetchOneStatementPackRequest<each Value: QueryRepresentable>: StatementKeyRequest {
-  let statement: any StructuredQueriesCore.Statement<(repeat each Value)>
+  let statement: SQLQueryExpression<(repeat each Value)>
+  init(statement: some StructuredQueriesCore.Statement<(repeat each Value)>) {
+    self.statement = SQLQueryExpression(statement)
+  }
   func fetch(_ db: Database) throws -> (repeat (each Value).QueryOutput) {
     guard let result = try statement.fetchOne(db)
     else { throw NotFound() }

Sources/SharingGRDBCore/Internal/StatementKey.swift

@@ -1,6 +1,6 @@
 protocol StatementKeyRequest<QueryValue>: FetchKeyRequest {
   associatedtype QueryValue
-  var statement: any StructuredQueriesCore.Statement<QueryValue> { get }
+  var statement: SQLQueryExpression<QueryValue> { get }
 }
 
 extension StatementKeyRequest {