[stdlib] Added POSIXErrorCode for Linux

Author: colemancda

include/swift/AST/ResolveCondition.h

@@ -0,0 +1,37 @@
+//===--- ResolveCondition.cpp - Resolution of Build Configurations --------===//
+//
+// This source file is part of the Swift.org open source project
+//
+// Copyright (c) 2017 Apple Inc. and the Swift project authors
+// Licensed under Apache License v2.0 with Runtime Library Exception
+//
+// See https://swift.org/LICENSE.txt for license information
+// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements condition resolution for Swift
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef SWIFT_AST_RESOLVE_CONDITION_H
+#define SWIFT_AST_RESOLVE_CONDITION_H
+
+#include "swift/AST/ASTContext.h"
+#include "swift/AST/LazyResolver.h"
+
+namespace swift {
+  class ConditionResolver : public LazyMemberLoader {
+  public:
+    virtual void loadAllMembers(Decl *D, uint64_t unused) override;
+    void loadBody(Stmt *D);
+
+  private:
+    void resolveCondition(IterableDeclContext *IDC,
+                          IfConfigDecl *outermostConfig,
+                          IfConfigDecl *recur);
+  };
+};
+
+#endif /* SWIFT_AST_RESOLVE_CONDITION_H */