[DNM] Debug prints commit

Author: artemcm

Sources/SwiftDriver/SwiftScan/SwiftScan.swift

@@ -323,15 +323,23 @@ internal extension swiftscan_diagnostic_severity_t {
   throws -> FrontendTargetInfo {
     // Create and configure the scanner invocation
     let invocation = api.swiftscan_scan_invocation_create()
+    print("--> Invocation Created")
     defer { api.swiftscan_scan_invocation_dispose(invocation) }
     withArrayOfCStrings(invocationCommand) { invocationStringArray in
       api.swiftscan_scan_invocation_set_argv(invocation,
                                              Int32(invocationCommand.count),
                                              invocationStringArray)
     }
-    let targetInfoString = try toSwiftString(api.swiftscan_compiler_target_info_query(invocation))
+    print("--> ARGV: \(invocationCommand.joined(separator:" "))")
+    let result = api.swiftscan_compiler_target_info_query(invocation)
+    print("--> Result: \(result)")
+    let targetInfoString = try toSwiftString(result)
+    print("--> ResultString: \(targetInfoString)")
     let targetInfoData = Data(targetInfoString.utf8)
-    return try JSONDecoder().decode(FrontendTargetInfo.self, from: targetInfoData)
+    print("--> ResultData: \(targetInfoData)")
+    let info = try JSONDecoder().decode(FrontendTargetInfo.self, from: targetInfoData)
+    print("--> Result info: \(info)")
+    return info
   }
 }
 

Tests/SwiftDriverTests/SwiftDriverTests.swift

@@ -4769,9 +4769,14 @@ final class SwiftDriverTests: XCTestCase {
   }
 
   func testPrintTargetInfo() throws {
+    print("Begin testPrintTargetInfo")
+
     do {
+      print("testPrintTargetInfo -> driver 1")
       var driver = try Driver(args: ["swift", "-print-target-info", "-sdk", "bar", "-resource-dir", "baz"])
+      print("testPrintTargetInfo -> planBuild 1")
       let plannedJobs = try driver.planBuild()
+      print("testPrintTargetInfo -> done 1")
       XCTAssertTrue(plannedJobs.count == 1)
       let job = plannedJobs[0]
       XCTAssertEqual(job.kind, .printTargetInfo)
@@ -4783,16 +4788,21 @@ final class SwiftDriverTests: XCTestCase {
 
     do {
       let targetInfoArgs = ["-print-target-info", "-sdk", "bar", "-resource-dir", "baz"]
+      print("testPrintTargetInfo -> driver 2")
       let driver = try Driver(args: ["swift"] + targetInfoArgs)
-
+      print("testPrintTargetInfo -> getScanLibPath")
       let env = ProcessEnv.vars
       let swiftScanLibPath = try Driver.getScanLibPath(of: driver.toolchain,
                                                        hostTriple: driver.hostTriple,
                                                        env: env)
+      print("Attempting to use scanner library at: \(swiftScanLibPath.debugDescription)")
       if localFileSystem.exists(swiftScanLibPath) {
+        print("Library Exists")
         let libSwiftScanInstance = try SwiftScan(dylib: swiftScanLibPath)
         if libSwiftScanInstance.canQueryTargetInfo() {
-          let _ = try libSwiftScanInstance.queryTargetInfo(invocationCommand: targetInfoArgs)
+          print("Library able to query target info")
+          let targetInfo = try libSwiftScanInstance.queryTargetInfo(invocationCommand: targetInfoArgs)
+          print(targetInfo)
         }
       }
     }