integrate new results class

src/RJSResults.cpp

@@ -22,7 +22,9 @@ JSValueRef ResultsGetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef
             return JSValueMakeNumber(ctx, size);
         }
 
-        return RJSObjectCreate(ctx, Object(results->realm, results->object_schema, results->get(RJSValidatedPositiveIndex(indexStr))));
+        return RJSObjectCreate(ctx, Object(results->get_realm(),
+                                           results->object_schema,
+                                           results->get(RJSValidatedPositiveIndex(indexStr))));
     }
     catch (std::out_of_range &exp) {
         // getters for nonexistent properties in JS should always return undefined
@@ -61,7 +63,7 @@ bool ResultsSetProperty(JSContextRef ctx, JSObjectRef object, JSStringRef proper
 void ResultsPropertyNames(JSContextRef ctx, JSObjectRef object, JSPropertyNameAccumulatorRef propertyNames) {
     Results *results = RJSGetInternal<Results *>(object);
     char str[32];
-    for (int i = 0; i < results->table_view.size(); i++) {
+    for (int i = 0; i < results->size(); i++) {
         sprintf(str, "%i", i);
         JSStringRef name = JSStringCreateWithUTF8CString(str);
         JSPropertyNameAccumulatorAddName(propertyNames, name);
@@ -74,7 +76,7 @@ JSValueRef SortByProperty(JSContextRef ctx, JSObjectRef function, JSObjectRef th
         Results *results = RJSGetInternal<Results *>(thisObject);
         RJSValidateArgumentRange(argumentCount, 1, 2);
         std::string propName = RJSValidatedStringForValue(ctx, arguments[0]);
-        Property *prop = results->object_schema.property_for_name(propName);
+        const Property *prop = results->object_schema.property_for_name(propName);
         if (!prop) {
             throw std::runtime_error("Property '" + propName + "' does not exist on object type '" + results->object_schema.name + "'");
         }
@@ -84,8 +86,7 @@ JSValueRef SortByProperty(JSContextRef ctx, JSObjectRef function, JSObjectRef th
             ascending = JSValueToBoolean(ctx, arguments[1]);
         }
 
-        SortOrder sort = {{prop->table_column}, {ascending}};
-        results->setSort(sort);
+        *results = results->sort({{prop->table_column}, {ascending}});
     }
     catch (std::exception &exp) {
         if (jsException) {

src/object-store/object_accessor.hpp

@@ -7,6 +7,7 @@
 
 #include <string>
 #include "shared_realm.hpp"
+#include "schema.hpp"
 #include "list.hpp"
 
 namespace realm {

src/object-store/results.cpp

@@ -20,19 +20,21 @@ using namespace realm;
 #define REALM_FALLTHROUGH
 #endif
 
-Results::Results(SharedRealm r, Query q, SortOrder s)
+Results::Results(SharedRealm r, const ObjectSchema &o, Query q, SortOrder s)
 : m_realm(std::move(r))
 , m_query(std::move(q))
 , m_table(m_query.get_table().get())
 , m_sort(std::move(s))
 , m_mode(Mode::Query)
+, object_schema(o)
 {
 }
 
-Results::Results(SharedRealm r, Table& table)
+Results::Results(SharedRealm r, const ObjectSchema &o, Table& table)
 : m_realm(std::move(r))
 , m_table(&table)
 , m_mode(Mode::Table)
+, object_schema(o)
 {
 }
 
@@ -146,9 +148,9 @@ size_t Results::index_of(Row const& row)
         throw DetatchedAccessorException{};
     }
     if (m_table && row.get_table() != m_table) {
-        throw IncorrectTableException{
-            ObjectStore::object_type_for_table_name(m_table->get_name()),
-            ObjectStore::object_type_for_table_name(row.get_table()->get_name())};
+        throw IncorrectTableException(object_schema.name,
+            ObjectStore::object_type_for_table_name(row.get_table()->get_name()),
+            "Attempting to get the index of a Row of the wrong type");
     }
     return index_of(row.get_index());
 }
@@ -298,23 +300,18 @@ TableView Results::get_tableview()
     REALM_UNREACHABLE();
 }
 
-StringData Results::get_object_type() const noexcept
-{
-    return ObjectStore::object_type_for_table_name(m_table->get_name());
-}
-
 Results Results::sort(realm::SortOrder&& sort) const
 {
-    return Results(m_realm, get_query(), std::move(sort));
+    return Results(m_realm, object_schema, get_query(), std::move(sort));
 }
 
 Results Results::filter(Query&& q) const
 {
-    return Results(m_realm, get_query().and_query(std::move(q)), get_sort());
+    return Results(m_realm, object_schema, get_query().and_query(std::move(q)), get_sort());
 }
 
-Results::UnsupportedColumnTypeException::UnsupportedColumnTypeException(size_t column, const Table* table) {
-    column_index = column;
-    column_name = table->get_column_name(column);
-    column_type = table->get_column_type(column);
+Results::UnsupportedColumnTypeException::UnsupportedColumnTypeException(size_t column, const Table* table) :
+    column_index(column), column_name(table->get_column_name(column)), column_type(table->get_column_type(column)),
+    std::runtime_error((std::string)"Operation not supported on '" + table->get_column_name(column).data() + "' columns")
+{
 }

src/object-store/results.hpp

@@ -32,8 +32,8 @@ public:
     // or a wrapper around a query and a sort order which creates and updates
     // the tableview as needed
     Results() = default;
-    Results(SharedRealm r, Table& table);
-    Results(SharedRealm r, Query q, SortOrder s = {});
+    Results(SharedRealm r, const ObjectSchema &o, Table& table);
+    Results(SharedRealm r, const ObjectSchema &o, Query q, SortOrder s = {});
 
     // Results is copyable and moveable
     Results(Results const&) = default;
@@ -41,6 +41,12 @@ public:
     Results& operator=(Results const&) = default;
     Results& operator=(Results&&) = default;
 
+    // Get the Realm
+    SharedRealm get_realm() const { return m_realm; }
+    
+    // Object schema describing the vendored object type
+    ObjectSchema object_schema;
+    
     // Get a query which will match the same rows as is contained in this Results
     // Returned query will not be valid if the current mode is Empty
     Query get_query() const;
@@ -52,7 +58,7 @@ public:
     TableView get_tableview();
 
     // Get the object type which will be returned by get()
-    StringData get_object_type() const noexcept;
+    StringData get_object_type() const noexcept { return object_schema.name; }
 
     // Get the size of this results
     // Can be either O(1) or O(N) depending on the state of things
@@ -104,25 +110,36 @@ public:
 
     // The Results object has been invalidated (due to the Realm being invalidated)
     // All non-noexcept functions can throw this
-    struct InvalidatedException {};
+    struct InvalidatedException : public std::runtime_error
+    {
+        InvalidatedException() : std::runtime_error("Access to invalidated Results objects") {}
+    };
 
     // The input index parameter was out of bounds
-    struct OutOfBoundsIndexException {
-        size_t requested;
-        size_t valid_count;
+    struct OutOfBoundsIndexException : public std::out_of_range
+    {
+        OutOfBoundsIndexException(size_t r, size_t c) : requested(r), valid_count(c),
+            std::out_of_range((std::string)"Requested index " + std::to_string(r) +
+                              " greater than max " + std::to_string(c)) {}
+        const size_t requested;
+        const size_t valid_count;
     };
 
     // The input Row object is not attached
-    struct DetatchedAccessorException { };
+    struct DetatchedAccessorException : public std::runtime_error {
+        DetatchedAccessorException() : std::runtime_error("Atempting to access an invalid object") {}
+    };
 
     // The input Row object belongs to a different table
-    struct IncorrectTableException {
-        StringData expected;
-        StringData actual;
+    struct IncorrectTableException : public std::runtime_error {
+        IncorrectTableException(StringData e, StringData a, const std::string &error) :
+            expected(e), actual(a), std::runtime_error(error) {}
+        const StringData expected;
+        const StringData actual;
     };
 
     // The requested aggregate operation is not supported for the column type
-    struct UnsupportedColumnTypeException {
+    struct UnsupportedColumnTypeException : public std::runtime_error {
         size_t column_index;
         StringData column_name;
         DataType column_type;

src/object-store/shared_realm.hpp

@@ -105,10 +105,6 @@ namespace realm {
         // Realm after closing it will produce undefined behavior.
         void close();
 
-        // Close this Realm and remove it from the cache. Continuing to use a
-        // Realm after closing it will produce undefined behavior.
-        void close();
-
         ~Realm();
 
       private: