Drop language- and compiler-version defaults from StaticBuildConfiguration

Author: DougGregor

Sources/SwiftIfConfig/StaticBuildConfiguration.swift

@@ -30,8 +30,8 @@ public struct StaticBuildConfiguration: Codable {
     targetPointerBitWidth: Int = 64,
     targetAtomicBitWidths: [Int] = [],
     endianness: Endianness = .little,
-    languageVersion: VersionTuple = VersionTuple(6),
-    compilerVersion: VersionTuple = VersionTuple(6, 2)
+    languageVersion: VersionTuple,
+    compilerVersion: VersionTuple
   ) {
     self.customConditions = customConditions
     self.features = features
@@ -159,7 +159,7 @@ public struct StaticBuildConfiguration: Codable {
   /// #if swift(>=5.5)
   /// // Hooray, we can use tasks!
   /// ```
-  public var languageVersion: VersionTuple = VersionTuple(6)
+  public var languageVersion: VersionTuple
 
   /// The version of the compiler (e.g., 5.9).
   ///
@@ -171,7 +171,7 @@ public struct StaticBuildConfiguration: Codable {
   /// #if compiler(>=5.7)
   /// // Hoorway, we can implicitly open existentials!
   /// #endif
-  public var compilerVersion: VersionTuple = VersionTuple(6, 2)
+  public var compilerVersion: VersionTuple
 }
 
 extension StaticBuildConfiguration: BuildConfiguration {

Tests/SwiftIfConfigTest/ActiveRegionTests.swift

@@ -23,7 +23,9 @@ public class ActiveRegionTests: XCTestCase {
   let linuxBuildConfig = StaticBuildConfiguration(
     customConditions: ["DEBUG", "ASSERTS"],
     features: ["ParameterPacks"],
-    attributes: ["available"]
+    attributes: ["available"],
+    languageVersion: VersionTuple(6),
+    compilerVersion: VersionTuple(6, 2)
   )
   func testActiveRegions() throws {
     try assertActiveCode(

Tests/SwiftIfConfigTest/EvaluateTests.swift

@@ -21,7 +21,11 @@ import _SwiftSyntaxTestSupport
 
 public class EvaluateTests: XCTestCase {
   func testLiterals() throws {
-    let buildConfig = StaticBuildConfiguration(customConditions: ["DEBUG", "ASSERTS"])
+    let buildConfig = StaticBuildConfiguration(
+      customConditions: ["DEBUG", "ASSERTS"],
+      languageVersion: VersionTuple(6),
+      compilerVersion: VersionTuple(6, 2)
+    )
 
     assertIfConfig("true", .active, configuration: buildConfig)
     assertIfConfig("false", .inactive, configuration: buildConfig)
@@ -71,7 +75,11 @@ public class EvaluateTests: XCTestCase {
   }
 
   func testCustomConfigs() throws {
-    let buildConfig = StaticBuildConfiguration(customConditions: ["DEBUG", "ASSERTS", "try"])
+    let buildConfig = StaticBuildConfiguration(
+      customConditions: ["DEBUG", "ASSERTS", "try"],
+      languageVersion: VersionTuple(6),
+      compilerVersion: VersionTuple(6, 2)
+    )
 
     assertIfConfig("DEBUG", .active, configuration: buildConfig)
     assertIfConfig("NODEBUG", .inactive, configuration: buildConfig)
@@ -136,7 +144,11 @@ public class EvaluateTests: XCTestCase {
   }
 
   func testBadExpressions() throws {
-    let buildConfig = StaticBuildConfiguration(customConditions: ["DEBUG", "ASSERTS"])
+    let buildConfig = StaticBuildConfiguration(
+      customConditions: ["DEBUG", "ASSERTS"],
+      languageVersion: VersionTuple(6),
+      compilerVersion: VersionTuple(6, 2)
+    )
 
     assertIfConfig(
       "3.14159",
@@ -178,14 +190,22 @@ public class EvaluateTests: XCTestCase {
   }
 
   func testFeatures() throws {
-    let buildConfig = StaticBuildConfiguration(features: ["ParameterPacks"])
+    let buildConfig = StaticBuildConfiguration(
+      features: ["ParameterPacks"],
+      languageVersion: VersionTuple(6),
+      compilerVersion: VersionTuple(6, 2)
+    )
 
     assertIfConfig("hasFeature(ParameterPacks)", .active, configuration: buildConfig)
     assertIfConfig("hasFeature(HigherKindedGenerics)", .inactive, configuration: buildConfig)
   }
 
   func testAttributes() throws {
-    let buildConfig = StaticBuildConfiguration(attributes: ["available"])
+    let buildConfig = StaticBuildConfiguration(
+      attributes: ["available"],
+      languageVersion: VersionTuple(6),
+      compilerVersion: VersionTuple(6, 2)
+    )
 
     assertIfConfig("hasAttribute(available)", .active, configuration: buildConfig)
     assertIfConfig("hasAttribute(unsafeUnavailable)", .inactive, configuration: buildConfig)
@@ -533,7 +553,11 @@ public class EvaluateTests: XCTestCase {
     assertIfConfig(
       "defined(FOO)",
       .active,
-      configuration: StaticBuildConfiguration(customConditions: ["FOO"]),
+      configuration: StaticBuildConfiguration(
+        customConditions: ["FOO"],
+        languageVersion: VersionTuple(6),
+        compilerVersion: VersionTuple(6, 2)
+      ),
       diagnostics: [
         DiagnosticSpec(
           message: message,