Split Option<T> and TagAlias definitions away from the main include path

CMakeLists.txt

@@ -176,6 +176,7 @@ set(INTERNAL_HEADERS
         ${HEADER_DIR}/internal/catch_string_manip.h
         ${HEADER_DIR}/internal/catch_suppress_warnings.h
         ${HEADER_DIR}/internal/catch_tag_alias.h
+        ${HEADER_DIR}/internal/catch_tag_alias_autoregistrar.h
         ${HEADER_DIR}/internal/catch_tag_alias_registry.h
         ${HEADER_DIR}/internal/catch_test_case_info.h
         ${HEADER_DIR}/internal/catch_test_case_registry_impl.hpp
@@ -223,6 +224,7 @@ set(IMPL_SOURCES
         ${HEADER_DIR}/internal/catch_stringref.cpp
         ${HEADER_DIR}/internal/catch_string_manip.cpp
         ${HEADER_DIR}/internal/catch_tag_alias.cpp
+        ${HEADER_DIR}/internal/catch_tag_alias_autoregistrar.cpp
         ${HEADER_DIR}/internal/catch_tag_alias_registry.cpp
         ${HEADER_DIR}/internal/catch_test_case_info.cpp
         ${HEADER_DIR}/internal/catch_test_case_registry_impl.cpp

include/catch.hpp

@@ -29,6 +29,7 @@
 #endif
 
 #include "internal/catch_context.h"
+#include "internal/catch_tag_alias_autoregistrar.h"
 #include "internal/catch_test_registry.hpp"
 #include "internal/catch_capture.hpp"
 #include "internal/catch_section.h"

include/internal/catch_interfaces_tag_alias_registry.h

@@ -8,14 +8,16 @@
 #ifndef TWOBLUECUBES_CATCH_INTERFACES_TAG_ALIAS_REGISTRY_H_INCLUDED
 #define TWOBLUECUBES_CATCH_INTERFACES_TAG_ALIAS_REGISTRY_H_INCLUDED
 
-#include "catch_tag_alias.h"
-#include "catch_option.hpp"
+#include <string>
 
 namespace Catch {
 
+    struct TagAlias;
+
     struct ITagAliasRegistry {
         virtual ~ITagAliasRegistry();
-        virtual Option<TagAlias> find( std::string const& alias ) const = 0;
+        // Nullptr if not present
+        virtual TagAlias const* find( std::string const& alias ) const = 0;
         virtual std::string expandAliases( std::string const& unexpandedTestSpec ) const = 0;
 
         static ITagAliasRegistry const& get();

include/internal/catch_tag_alias.cpp

@@ -0,0 +1,5 @@
+#include "catch_tag_alias.h"
+
+namespace Catch {
+    TagAlias::TagAlias(std::string const & _tag, SourceLineInfo _lineInfo): tag(_tag), lineInfo(_lineInfo) {}    
+}

include/internal/catch_tag_alias.h

@@ -21,12 +21,6 @@ namespace Catch {
         SourceLineInfo lineInfo;
     };
 
-    struct RegistrarForTagAliases {
-        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
-    };
-
 } // end namespace Catch
 
 #endif // TWOBLUECUBES_CATCH_TAG_ALIAS_H_INCLUDED
-
-#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); }

include/internal/catch_tag_alias_autoregistrar.cpp

@@ -0,0 +1,15 @@
+#include "catch_tag_alias_autoregistrar.h"
+#include "catch_interfaces_registry_hub.h"
+
+namespace Catch {
+    
+    RegistrarForTagAliases::RegistrarForTagAliases(char const* alias, char const* tag, SourceLineInfo const& lineInfo) {
+        try {
+            getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo);
+        } catch (...) {
+            // Do not throw when constructing global objects, instead register the exception to be processed later
+            getMutableRegistryHub().registerStartupException(std::current_exception());
+        }
+    }
+
+}

include/internal/catch_tag_alias_autoregistrar.h

@@ -0,0 +1,22 @@
+/*
+ *  Created by Martin on 27/07/2017.
+ *
+ *  Distributed under the Boost Software License, Version 1.0. (See accompanying
+ *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+#ifndef TWOBLUECUBES_CATCH_TAG_ALIAS_AUTOREGISTRAR_H_INCLUDED
+#define TWOBLUECUBES_CATCH_TAG_ALIAS_AUTOREGISTRAR_H_INCLUDED
+
+#include "catch_common.h"
+
+namespace Catch {
+
+    struct RegistrarForTagAliases {
+        RegistrarForTagAliases( char const* alias, char const* tag, SourceLineInfo const& lineInfo );
+    };
+
+} // end namespace Catch
+
+#define CATCH_REGISTER_TAG_ALIAS( alias, spec ) namespace{ Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME( AutoRegisterTagAlias )( alias, spec, CATCH_INTERNAL_LINEINFO ); }
+
+#endif // TWOBLUECUBES_CATCH_TAG_ALIAS_AUTOREGISTRAR_H_INCLUDED

include/internal/catch_tag_alias_registry.cpp

@@ -16,12 +16,12 @@ namespace Catch {
 
     TagAliasRegistry::~TagAliasRegistry() {}
 
-    Option<TagAlias> TagAliasRegistry::find( std::string const& alias ) const {
+    TagAlias const* TagAliasRegistry::find( std::string const& alias ) const {
         auto it = m_registry.find( alias );
         if( it != m_registry.end() )
-            return it->second;
+            return &(it->second);
         else
-            return Option<TagAlias>();
+            return nullptr;
     }
 
     std::string TagAliasRegistry::expandAliases( std::string const& unexpandedTestSpec ) const {

include/internal/catch_tag_alias_registry.h

@@ -9,6 +9,7 @@
 #define TWOBLUECUBES_CATCH_TAG_ALIAS_REGISTRY_H_INCLUDED
 
 #include "catch_interfaces_tag_alias_registry.h"
+#include "catch_tag_alias.h"
 
 #include <map>
 
@@ -17,7 +18,7 @@ namespace Catch {
     class TagAliasRegistry : public ITagAliasRegistry {
     public:
         ~TagAliasRegistry() override;
-        Option<TagAlias> find( std::string const& alias ) const override;
+        TagAlias const* find( std::string const& alias ) const override;
         std::string expandAliases( std::string const& unexpandedTestSpec ) const override;
         void add( std::string const& alias, std::string const& tag, SourceLineInfo const& lineInfo );