[SwiftPMBuildSystem] Adjust BuildParameters use to indicate a destination

The change is introduced by swiftlang/swift-package-manager#7593

(cherry picked from commit 12b848e)

Author: xedin

Sources/SKSwiftPMWorkspace/SwiftPMBuildSystem.swift

@@ -127,7 +127,8 @@ public actor SwiftPMBuildSystem {
 
   private var modulesGraph: ModulesGraph
   private let workspace: Workspace
-  @_spi(Testing) public let buildParameters: BuildParameters
+  @_spi(Testing) public let toolsBuildParameters: BuildParameters
+  @_spi(Testing) public let destinationBuildParameters: BuildParameters
   private let fileSystem: FileSystem
   private let toolchain: SKCore.Toolchain
 
@@ -235,7 +236,18 @@ public actor SwiftPMBuildSystem {
       buildConfiguration = .release
     }
 
-    self.buildParameters = try BuildParameters(
+    self.toolsBuildParameters = try BuildParameters(
+      destination: .host,
+      dataPath: location.scratchDirectory.appending(
+        component: swiftPMToolchain.targetTriple.platformBuildPathComponent
+      ),
+      configuration: buildConfiguration,
+      toolchain: swiftPMToolchain,
+      flags: buildSetup.flags
+    )
+
+    self.destinationBuildParameters = try BuildParameters(
+      destination: .target,
       dataPath: location.scratchDirectory.appending(
         component: swiftPMToolchain.targetTriple.platformBuildPathComponent
       ),
@@ -318,7 +330,8 @@ extension SwiftPMBuildSystem {
     )
 
     let plan = try BuildPlan(
-      buildParameters: buildParameters,
+      productsBuildParameters: destinationBuildParameters,
+      toolsBuildParameters: toolsBuildParameters,
       graph: modulesGraph,
       fileSystem: fileSystem,
       observabilityScope: observabilitySystem.topScope
@@ -384,12 +397,12 @@ extension SwiftPMBuildSystem: SKCore.BuildSystem {
   public nonisolated var supportsPreparation: Bool { true }
 
   public var buildPath: TSCAbsolutePath {
-    return TSCAbsolutePath(buildParameters.buildPath)
+    return TSCAbsolutePath(destinationBuildParameters.buildPath)
   }
 
   public var indexStorePath: TSCAbsolutePath? {
-    return buildParameters.indexStoreMode == .off
-      ? nil : TSCAbsolutePath(buildParameters.indexStore)
+    return destinationBuildParameters.indexStoreMode == .off
+      ? nil : TSCAbsolutePath(destinationBuildParameters.indexStore)
   }
 
   public var indexDatabasePath: TSCAbsolutePath? {

Tests/SKSwiftPMWorkspaceTests/SwiftPMBuildSystemTests.swift

@@ -147,7 +147,7 @@ final class SwiftPMBuildSystemTests: XCTestCase {
       try await swiftpmBuildSystem.generateBuildGraph(allowFileSystemWrites: false)
 
       let aswift = packageRoot.appending(components: "Sources", "lib", "a.swift")
-      let hostTriple = await swiftpmBuildSystem.buildParameters.triple
+      let hostTriple = await swiftpmBuildSystem.destinationBuildParameters.triple
       let build = buildPath(root: packageRoot, platform: hostTriple.platformBuildPathComponent)
 
       assertEqual(await swiftpmBuildSystem.buildPath, build)
@@ -275,7 +275,7 @@ final class SwiftPMBuildSystemTests: XCTestCase {
       try await swiftpmBuildSystem.generateBuildGraph(allowFileSystemWrites: false)
 
       let aswift = packageRoot.appending(components: "Sources", "lib", "a.swift")
-      let hostTriple = await swiftpmBuildSystem.buildParameters.triple
+      let hostTriple = await swiftpmBuildSystem.destinationBuildParameters.triple
       let build = buildPath(root: packageRoot, config: config, platform: hostTriple.platformBuildPathComponent)
 
       assertEqual(await swiftpmBuildSystem.buildPath, build)
@@ -514,7 +514,7 @@ final class SwiftPMBuildSystemTests: XCTestCase {
       let acxx = packageRoot.appending(components: "Sources", "lib", "a.cpp")
       let bcxx = packageRoot.appending(components: "Sources", "lib", "b.cpp")
       let header = packageRoot.appending(components: "Sources", "lib", "include", "a.h")
-      let hostTriple = await swiftpmBuildSystem.buildParameters.triple
+      let hostTriple = await swiftpmBuildSystem.destinationBuildParameters.triple
       let build = buildPath(root: packageRoot, platform: hostTriple.platformBuildPathComponent)
 
       assertEqual(await swiftpmBuildSystem.buildPath, build)
@@ -596,7 +596,7 @@ final class SwiftPMBuildSystemTests: XCTestCase {
       let arguments = try await unwrap(swiftpmBuildSystem.buildSettings(for: aswift.asURI, language: .swift))
         .compilerArguments
       assertArgumentsContain("-target", arguments: arguments)  // Only one!
-      let hostTriple = await swiftpmBuildSystem.buildParameters.triple
+      let hostTriple = await swiftpmBuildSystem.destinationBuildParameters.triple
 
       #if os(macOS)
       assertArgumentsContain(
@@ -829,7 +829,7 @@ final class SwiftPMBuildSystemTests: XCTestCase {
       try await swiftpmBuildSystem.generateBuildGraph(allowFileSystemWrites: false)
 
       let aswift = packageRoot.appending(components: "Plugins", "MyPlugin", "a.swift")
-      let hostTriple = await swiftpmBuildSystem.buildParameters.triple
+      let hostTriple = await swiftpmBuildSystem.destinationBuildParameters.triple
       let build = buildPath(root: packageRoot, platform: hostTriple.platformBuildPathComponent)
 
       assertEqual(await swiftpmBuildSystem.buildPath, build)