Basic R*Tree module support

Signed-off-by: Stephen Celis <stephen@stephencelis.com>

Author: stephencelis

SQLite Tests/RTreeTests.swift

@@ -0,0 +1,19 @@
+import XCTest
+import SQLite
+
+class RTreeTests: XCTestCase {
+
+    let id = Expression<Int64>("id")
+    let minX = Expression<Double>("minX")
+    let maxX = Expression<Double>("maxX")
+    let minY = Expression<Double>("minY")
+    let maxY = Expression<Double>("maxY")
+
+    let db = Database()
+    var index: Query { return db["index"] }
+
+    func test_createVtable_usingRtree_createsVirtualTable() {
+        ExpectExecution(db, "CREATE VIRTUAL TABLE \"index\" USING rtree(\"id\", \"minX\", \"maxX\", \"minY\", \"maxY\")", db.create(vtable: index, using: rtree(id, minX, maxX, minY, maxY)))
+    }
+
+}

SQLite.xcodeproj/project.pbxproj

@@ -25,6 +25,9 @@
 		DCAFEAD31AABC818000C21A1 /* FTS.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCAFEAD21AABC818000C21A1 /* FTS.swift */; };
 		DCAFEAD41AABC818000C21A1 /* FTS.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCAFEAD21AABC818000C21A1 /* FTS.swift */; };
 		DCAFEAD71AABEFA7000C21A1 /* FTSTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCAFEAD61AABEFA7000C21A1 /* FTSTests.swift */; };
+		DCBE28411ABDF18F0042A3FC /* RTree.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCBE28401ABDF18F0042A3FC /* RTree.swift */; };
+		DCBE28421ABDF18F0042A3FC /* RTree.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCBE28401ABDF18F0042A3FC /* RTree.swift */; };
+		DCBE28451ABDF2A80042A3FC /* RTreeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCBE28441ABDF2A80042A3FC /* RTreeTests.swift */; };
 		DCC6B36F1A9191C300734B78 /* Query.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCAD429619E2E0F1004A51DF /* Query.swift */; };
 		DCC6B3701A9191C300734B78 /* Statement.swift in Sources */ = {isa = PBXBuildFile; fileRef = DC37743A19C8D6C0004FCF85 /* Statement.swift */; };
 		DCC6B3711A9191C300734B78 /* Expression.swift in Sources */ = {isa = PBXBuildFile; fileRef = DC650B9519F0CDC3002FBE91 /* Expression.swift */; };
@@ -106,6 +109,8 @@
 		DCAD429919E2EE50004A51DF /* QueryTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = QueryTests.swift; sourceTree = "<group>"; };
 		DCAFEAD21AABC818000C21A1 /* FTS.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FTS.swift; sourceTree = "<group>"; };
 		DCAFEAD61AABEFA7000C21A1 /* FTSTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FTSTests.swift; sourceTree = "<group>"; };
+		DCBE28401ABDF18F0042A3FC /* RTree.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RTree.swift; sourceTree = "<group>"; };
+		DCBE28441ABDF2A80042A3FC /* RTreeTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RTreeTests.swift; sourceTree = "<group>"; };
 		DCC6B3801A9191C300734B78 /* SQLite.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = SQLite.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		DCC6B3921A9191D100734B78 /* SQLiteCipher Tests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = "SQLiteCipher Tests.xctest"; sourceTree = BUILT_PRODUCTS_DIR; };
 		DCC6B3961A91938F00734B78 /* sqlcipher.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = sqlcipher.xcodeproj; path = sqlcipher/sqlcipher.xcodeproj; sourceTree = "<group>"; };
@@ -161,6 +166,7 @@
 				DCAD429619E2E0F1004A51DF /* Query.swift */,
 				DC109CE01A0C4D970070988E /* Schema.swift */,
 				DCAFEAD21AABC818000C21A1 /* FTS.swift */,
+				DCBE28401ABDF18F0042A3FC /* RTree.swift */,
 			);
 			name = "Query Building";
 			sourceTree = "<group>";
@@ -186,6 +192,7 @@
 				DCAD429919E2EE50004A51DF /* QueryTests.swift */,
 				DC109CE31A0C4F5D0070988E /* SchemaTests.swift */,
 				DCAFEAD61AABEFA7000C21A1 /* FTSTests.swift */,
+				DCBE28441ABDF2A80042A3FC /* RTreeTests.swift */,
 				DC37740319C8CBB3004FCF85 /* Supporting Files */,
 			);
 			path = "SQLite Tests";
@@ -477,6 +484,7 @@
 				DC37743B19C8D6C0004FCF85 /* Statement.swift in Sources */,
 				DC37743819C8D693004FCF85 /* Value.swift in Sources */,
 				DC650B9619F0CDC3002FBE91 /* Expression.swift in Sources */,
+				DCBE28411ABDF18F0042A3FC /* RTree.swift in Sources */,
 				DCAD429719E2E0F1004A51DF /* Query.swift in Sources */,
 				DC109CE11A0C4D970070988E /* Schema.swift in Sources */,
 				DCC6B3A81A91975700734B78 /* Functions.swift in Sources */,
@@ -496,6 +504,7 @@
 				DCAD429A19E2EE50004A51DF /* QueryTests.swift in Sources */,
 				DC109CE41A0C4F5D0070988E /* SchemaTests.swift in Sources */,
 				DCC6B3A71A91974B00734B78 /* FunctionsTests.swift in Sources */,
+				DCBE28451ABDF2A80042A3FC /* RTreeTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -512,6 +521,7 @@
 				DCC6B3A91A91975C00734B78 /* Functions.swift in Sources */,
 				DCAFEAD41AABC818000C21A1 /* FTS.swift in Sources */,
 				DCC6B3751A9191C300734B78 /* SQLite-Bridging.c in Sources */,
+				DCBE28421ABDF18F0042A3FC /* RTree.swift in Sources */,
 				DCC6B3A41A9194A800734B78 /* Cipher.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

SQLite/RTree.swift

@@ -0,0 +1,29 @@
+//
+// SQLite.swift
+// https://github.com/stephencelis/SQLite.swift
+// Copyright (c) 2014-2015 Stephen Celis.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+public func rtree<T: Value, U: Value where T.Datatype == Int64, U.Datatype == Double>(primaryKey: Expression<T>, columns: Expression<U>...) -> Expression<()> {
+    var definitions: [Expressible] = [primaryKey]
+    definitions.extend(columns.map { $0 })
+    return wrap(__FUNCTION__, Expression<()>.join(", ", definitions))
+}