diff --git a/src/cx/cursor.cc b/src/cx/cursor.cc
new file mode 100644
index 00000000..f84c20b0
--- /dev/null
+++ b/src/cx/cursor.cc
@@ -0,0 +1,328 @@
+/**
+ * src/cx/cursor.cc
+ *
+ * Copyright (c) 2021 Bartek Kryza <bkryza@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "cx/cursor.h"
+
+namespace clanguml::cx {
+
+cursor::cursor()
+    : m_cursor{clang_getNullCursor()}
+{
+}
+
+cursor::cursor(CXCursor &&c)
+    : m_cursor{std::move(c)}
+{
+}
+
+cursor::cursor(const CXCursor &c)
+    : m_cursor{c}
+{
+}
+
+cursor::cursor(const cursor &c)
+    : m_cursor{c.get()}
+{
+}
+
+bool cursor::operator==(const cursor &b) const
+{
+    return clang_equalCursors(m_cursor, b.get());
+}
+
+cx::type cursor::type() const { return {clang_getCursorType(m_cursor)}; }
+
+std::string cursor::display_name() const
+{
+    return to_string(clang_getCursorDisplayName(m_cursor));
+}
+
+std::string cursor::spelling() const
+{
+    return to_string(clang_getCursorSpelling(m_cursor));
+}
+
+bool cursor::is_void() const
+{
+    // Why do I have to do this like this?
+    return spelling() == "void";
+}
+
+/**
+ * @brief Return fully qualified cursor spelling
+ *
+ * This method generates a fully qualified name for the cursor by
+ * traversing the namespaces upwards.
+ *
+ * TODO: Add caching of this value.
+ *
+ * @return Fully qualified cursor spelling
+ */
+std::string cursor::fully_qualified() const
+{
+    std::list<std::string> res;
+    cursor iterator{m_cursor};
+    if (iterator.spelling().empty())
+        return {};
+
+    int limit = 100;
+    while (iterator.kind() != CXCursor_TranslationUnit) {
+        auto name = iterator.spelling();
+        if (!name.empty())
+            res.push_front(iterator.spelling());
+        iterator = iterator.semantic_parent();
+        if (limit-- == 0)
+            throw std::runtime_error(fmt::format(
+                "Generating fully qualified name for '{}' failed at: '{}'",
+                spelling(), fmt::join(res, "::")));
+    }
+
+    return fmt::format("{}", fmt::join(res, "::"));
+}
+
+cursor cursor::referenced() const
+{
+    return cx::cursor{clang_getCursorReferenced(m_cursor)};
+}
+
+cursor cursor::semantic_parent() const
+{
+    return {clang_getCursorSemanticParent(m_cursor)};
+}
+
+cursor cursor::lexical_parent() const
+{
+    return {clang_getCursorLexicalParent(m_cursor)};
+}
+
+CXCursorKind cursor::kind() const { return m_cursor.kind; }
+
+std::string cursor::kind_spelling() const
+{
+    return to_string(clang_getCursorKindSpelling(m_cursor.kind));
+}
+
+cursor cursor::definition() const
+{
+    return clang_getCursorDefinition(m_cursor);
+}
+
+bool cursor::is_definition() const
+{
+    return clang_isCursorDefinition(m_cursor);
+}
+
+bool cursor::is_declaration() const { return clang_isDeclaration(kind()); }
+
+bool cursor::is_forward_declaration() const
+{
+    auto definition = clang_getCursorDefinition(m_cursor);
+
+    if (clang_equalCursors(definition, clang_getNullCursor()))
+        return true;
+
+    return !clang_equalCursors(m_cursor, definition);
+}
+
+bool cursor::is_invalid_declaration() const
+{
+    return clang_isInvalidDeclaration(m_cursor);
+}
+
+CXSourceLocation cursor::location() const
+{
+    return clang_getCursorLocation(m_cursor);
+}
+
+bool cursor::is_reference() const { return clang_isReference(kind()); }
+
+bool cursor::is_expression() const { return clang_isExpression(kind()); }
+
+bool cursor::is_statement() const { return clang_isStatement(kind()); }
+
+bool cursor::is_namespace() const { return kind() == CXCursor_Namespace; }
+
+bool cursor::is_attribute() const { return clang_isAttribute(kind()); }
+
+bool cursor::has_attrs() const { return clang_Cursor_hasAttrs(m_cursor); }
+
+bool cursor::is_invalid() const { return clang_isInvalid(kind()); }
+
+bool cursor::is_translation_unit() const
+{
+    return clang_isTranslationUnit(kind());
+}
+
+bool cursor::is_preprocessing() const { return clang_isPreprocessing(kind()); }
+
+bool cursor::is_method_virtual() const
+{
+    return clang_CXXMethod_isVirtual(m_cursor);
+}
+
+bool cursor::is_static() const
+{
+    return clang_Cursor_getStorageClass(m_cursor) == CX_SC_Static;
+}
+
+bool cursor::is_method_static() const
+{
+    return clang_CXXMethod_isStatic(m_cursor);
+}
+
+bool cursor::is_method_const() const
+{
+    return clang_CXXMethod_isConst(m_cursor);
+}
+
+bool cursor::is_method_pure_virtual() const
+{
+    return clang_CXXMethod_isPureVirtual(m_cursor);
+}
+
+bool cursor::is_method_defaulted() const
+{
+    return clang_CXXMethod_isDefaulted(m_cursor);
+}
+
+bool cursor::is_method_parameter() const { return kind() == CXCursor_ParmDecl; }
+
+CXVisibilityKind cursor::visibitity() const
+{
+    return clang_getCursorVisibility(m_cursor);
+}
+
+CXAvailabilityKind cursor::availability() const
+{
+    return clang_getCursorAvailability(m_cursor);
+}
+
+CX_CXXAccessSpecifier cursor::cxxaccess_specifier() const
+{
+    return clang_getCXXAccessSpecifier(m_cursor);
+}
+
+cx::type cursor::underlying_type() const
+{
+    return clang_getTypedefDeclUnderlyingType(m_cursor);
+}
+
+int cursor::template_argument_count() const
+{
+    return clang_Cursor_getNumTemplateArguments(m_cursor);
+}
+
+CXTemplateArgumentKind cursor::template_argument_kind(unsigned i) const
+{
+    return clang_Cursor_getTemplateArgumentKind(m_cursor, i);
+}
+
+cx::type cursor::template_argument_type(unsigned i) const
+{
+    return clang_Cursor_getTemplateArgumentType(m_cursor, i);
+}
+
+long long cursor::template_argument_value(unsigned i) const
+{
+    return clang_Cursor_getTemplateArgumentValue(m_cursor, i);
+}
+
+cursor cursor::specialized_cursor_template() const
+{
+    return clang_getSpecializedCursorTemplate(m_cursor);
+}
+
+CXTranslationUnit cursor::translation_unit() const
+{
+    return clang_Cursor_getTranslationUnit(m_cursor);
+}
+
+bool cursor::is_template_parameter_variadic() const
+{
+    const auto &tokens = tokenize();
+    return tokens.size() > 2 && tokens[1] == "...";
+}
+
+std::string cursor::usr() const
+{
+    return to_string(clang_getCursorUSR(m_cursor));
+}
+
+CXSourceRange cursor::extent() const { return clang_getCursorExtent(m_cursor); }
+
+std::vector<std::string> cursor::tokenize() const
+{
+    auto range = extent();
+    std::vector<std::string> res;
+    CXToken *toks;
+    unsigned toks_count{0};
+    auto tu = translation_unit();
+
+    clang_tokenize(tu, range, &toks, &toks_count);
+
+    for (int i = 0; i < toks_count; i++) {
+        res.push_back(to_string(clang_getTokenSpelling(tu, toks[i])));
+    }
+
+    return res;
+}
+
+std::string cursor::default_value() const
+{
+    assert(is_method_parameter());
+
+    auto toks = tokenize();
+    std::string res;
+    auto it = std::find(toks.begin(), toks.end(), "=");
+    if (it != toks.end()) {
+        res = fmt::format("{}", fmt::join(it + 1, toks.end(), ""));
+    }
+
+    return res;
+}
+
+std::vector<std::string> cursor::tokenize_template_parameters() const
+{
+    auto toks = tokenize();
+    std::vector<std::string> res;
+    bool inside_template{false};
+    bool is_namespace{false};
+
+    for (int i = 0; i < toks.size(); i++) {
+        // libclang returns ">..>>" in template as a single token...
+        auto t = toks[i];
+        if (std::all_of(
+                t.begin(), t.end(), [](const char &c) { return c == '>'; })) {
+            toks[i] = ">";
+            for (int j = 0; j < t.size() - 1; j++)
+                toks.insert(toks.begin() + i, ">");
+        }
+    }
+    auto template_start = std::find(toks.begin(), toks.end(), "<");
+    auto template_end = std::find(toks.rbegin(), toks.rend(), ">");
+
+    decltype(res) template_contents(
+        template_start + 1, template_end.base() - 1);
+
+    return clanguml::util::split(
+        fmt::format("{}", fmt::join(template_contents, "")), ",");
+}
+
+const CXCursor &cursor::get() const { return m_cursor; }
+
+}
diff --git a/src/cx/cursor.h b/src/cx/cursor.h
index b7f9d832..5f74f448 100644
--- a/src/cx/cursor.h
+++ b/src/cx/cursor.h
@@ -27,50 +27,24 @@ namespace cx {
 
 class cursor {
 public:
-    cursor()
-        : m_cursor{clang_getNullCursor()}
-    {
-    }
+    cursor();
 
-    cursor(CXCursor &&c)
-        : m_cursor{std::move(c)}
-    {
-    }
+    cursor(CXCursor &&c);
 
-    cursor(const CXCursor &c)
-        : m_cursor{c}
-    {
-    }
+    cursor(const CXCursor &c);
 
-    cursor(const cursor &c)
-        : m_cursor{c.get()}
-    {
-    }
+    cursor(const cursor &c);
 
     ~cursor() = default;
 
-    bool operator==(const cursor &b) const
-    {
-        return clang_equalCursors(m_cursor, b.get());
-    }
+    bool operator==(const cursor &b) const;
 
-    cx::type type() const { return {clang_getCursorType(m_cursor)}; }
+    cx::type type() const;
+    std::string display_name() const;
 
-    std::string display_name() const
-    {
-        return to_string(clang_getCursorDisplayName(m_cursor));
-    }
+    std::string spelling() const;
 
-    std::string spelling() const
-    {
-        return to_string(clang_getCursorSpelling(m_cursor));
-    }
-
-    bool is_void() const
-    {
-        // Why do I have to do this like this?
-        return spelling() == "void";
-    }
+    bool is_void() const;
 
     /**
      * @brief Return fully qualified cursor spelling
@@ -82,239 +56,76 @@ public:
      *
      * @return Fully qualified cursor spelling
      */
-    std::string fully_qualified() const
-    {
-        std::list<std::string> res;
-        cursor iterator{m_cursor};
-        if (iterator.spelling().empty())
-            return {};
+    std::string fully_qualified() const;
 
-        int limit = 100;
-        while (iterator.kind() != CXCursor_TranslationUnit) {
-            auto name = iterator.spelling();
-            if (!name.empty())
-                res.push_front(iterator.spelling());
-            iterator = iterator.semantic_parent();
-            if (limit-- == 0)
-                throw std::runtime_error(fmt::format(
-                    "Generating fully qualified name for '{}' failed at: '{}'",
-                    spelling(), fmt::join(res, "::")));
-        }
+    cursor referenced() const;
 
-        return fmt::format("{}", fmt::join(res, "::"));
-    }
+    cursor semantic_parent() const;
 
-    cursor referenced() const
-    {
-        return cx::cursor{clang_getCursorReferenced(m_cursor)};
-    }
+    cursor lexical_parent() const;
 
-    cursor semantic_parent() const
-    {
-        return {clang_getCursorSemanticParent(m_cursor)};
-    }
+    CXCursorKind kind() const;
+    std::string kind_spelling() const;
 
-    cursor lexical_parent() const
-    {
-        return {clang_getCursorLexicalParent(m_cursor)};
-    }
+    cursor definition() const;
+    bool is_definition() const;
+    bool is_declaration() const;
+    bool is_forward_declaration() const;
 
-    CXCursorKind kind() const { return m_cursor.kind; }
+    bool is_invalid_declaration() const;
+    CXSourceLocation location() const;
 
-    std::string kind_spelling() const
-    {
-        return to_string(clang_getCursorKindSpelling(m_cursor.kind));
-    }
+    bool is_reference() const;
+    bool is_expression() const;
+    bool is_statement() const;
+    bool is_namespace() const;
+    bool is_attribute() const;
+    bool has_attrs() const;
+    bool is_invalid() const;
+    bool is_translation_unit() const;
+    bool is_preprocessing() const;
+    bool is_method_virtual() const;
 
-    cursor definition() const { return clang_getCursorDefinition(m_cursor); }
+    bool is_static() const;
 
-    bool is_definition() const { return clang_isCursorDefinition(m_cursor); }
+    bool is_method_static() const;
+    bool is_method_const() const;
+    bool is_method_pure_virtual() const;
 
-    bool is_declaration() const { return clang_isDeclaration(kind()); }
+    bool is_method_defaulted() const;
 
-    bool is_forward_declaration() const
-    {
-        auto definition = clang_getCursorDefinition(m_cursor);
+    bool is_method_parameter() const;
+    CXVisibilityKind visibitity() const;
 
-        if (clang_equalCursors(definition, clang_getNullCursor()))
-            return true;
+    CXAvailabilityKind availability() const;
 
-        return !clang_equalCursors(m_cursor, definition);
-    }
+    CX_CXXAccessSpecifier cxxaccess_specifier() const;
 
-    bool is_invalid_declaration() const
-    {
-        return clang_isInvalidDeclaration(m_cursor);
-    }
+    cx::type underlying_type() const;
 
-    CXSourceLocation location() const
-    {
-        return clang_getCursorLocation(m_cursor);
-    }
+    int template_argument_count() const;
 
-    bool is_reference() const { return clang_isReference(kind()); }
+    CXTemplateArgumentKind template_argument_kind(unsigned i) const;
 
-    bool is_expression() const { return clang_isExpression(kind()); }
+    cx::type template_argument_type(unsigned i) const;
 
-    bool is_statement() const { return clang_isStatement(kind()); }
+    long long template_argument_value(unsigned i) const;
 
-    bool is_namespace() const { return kind() == CXCursor_Namespace; }
+    cursor specialized_cursor_template() const;
 
-    bool is_attribute() const { return clang_isAttribute(kind()); }
+    CXTranslationUnit translation_unit() const;
 
-    bool has_attrs() const { return clang_Cursor_hasAttrs(m_cursor); }
+    bool is_template_parameter_variadic() const;
 
-    bool is_invalid() const { return clang_isInvalid(kind()); }
+    std::string usr() const;
+    CXSourceRange extent() const;
+    std::vector<std::string> tokenize() const;
 
-    bool is_translation_unit() const { return clang_isTranslationUnit(kind()); }
+    std::string default_value() const;
 
-    bool is_preprocessing() const { return clang_isPreprocessing(kind()); }
+    std::vector<std::string> tokenize_template_parameters() const;
 
-    bool is_method_virtual() const
-    {
-        return clang_CXXMethod_isVirtual(m_cursor);
-    }
-
-    bool is_static() const
-    {
-        return clang_Cursor_getStorageClass(m_cursor) == CX_SC_Static;
-    }
-
-    bool is_method_static() const { return clang_CXXMethod_isStatic(m_cursor); }
-
-    bool is_method_const() const { return clang_CXXMethod_isConst(m_cursor); }
-
-    bool is_method_pure_virtual() const
-    {
-        return clang_CXXMethod_isPureVirtual(m_cursor);
-    }
-
-    bool is_method_defaulted() const
-    {
-        return clang_CXXMethod_isDefaulted(m_cursor);
-    }
-
-    bool is_method_parameter() const { return kind() == CXCursor_ParmDecl; }
-
-    CXVisibilityKind visibitity() const
-    {
-        return clang_getCursorVisibility(m_cursor);
-    }
-
-    CXAvailabilityKind availability() const
-    {
-        return clang_getCursorAvailability(m_cursor);
-    }
-
-    CX_CXXAccessSpecifier cxxaccess_specifier() const
-    {
-        return clang_getCXXAccessSpecifier(m_cursor);
-    }
-
-    cx::type underlying_type() const
-    {
-        return clang_getTypedefDeclUnderlyingType(m_cursor);
-    }
-
-    int template_argument_count() const
-    {
-        return clang_Cursor_getNumTemplateArguments(m_cursor);
-    }
-
-    CXTemplateArgumentKind template_argument_kind(unsigned i) const
-    {
-        return clang_Cursor_getTemplateArgumentKind(m_cursor, i);
-    }
-
-    cx::type template_argument_type(unsigned i) const
-    {
-        return clang_Cursor_getTemplateArgumentType(m_cursor, i);
-    }
-
-    long long template_argument_value(unsigned i) const
-    {
-        return clang_Cursor_getTemplateArgumentValue(m_cursor, i);
-    }
-
-    cursor specialized_cursor_template() const
-    {
-        return clang_getSpecializedCursorTemplate(m_cursor);
-    }
-
-    CXTranslationUnit translation_unit() const
-    {
-        return clang_Cursor_getTranslationUnit(m_cursor);
-    }
-
-    bool is_template_parameter_variadic() const
-    {
-        const auto &tokens = tokenize();
-        return tokens.size() > 2 && tokens[1] == "...";
-    }
-
-    std::string usr() const { return to_string(clang_getCursorUSR(m_cursor)); }
-
-    CXSourceRange extent() const { return clang_getCursorExtent(m_cursor); }
-
-    std::vector<std::string> tokenize() const
-    {
-        auto range = extent();
-        std::vector<std::string> res;
-        CXToken *toks;
-        unsigned toks_count{0};
-        auto tu = translation_unit();
-
-        clang_tokenize(tu, range, &toks, &toks_count);
-
-        for (int i = 0; i < toks_count; i++) {
-            res.push_back(to_string(clang_getTokenSpelling(tu, toks[i])));
-        }
-
-        return res;
-    }
-
-    std::string default_value() const
-    {
-        assert(is_method_parameter());
-
-        auto toks = tokenize();
-        std::string res;
-        auto it = std::find(toks.begin(), toks.end(), "=");
-        if (it != toks.end()) {
-            res = fmt::format("{}", fmt::join(it + 1, toks.end(), ""));
-        }
-
-        return res;
-    }
-
-    std::vector<std::string> tokenize_template_parameters() const
-    {
-        auto toks = tokenize();
-        std::vector<std::string> res;
-        bool inside_template{false};
-        bool is_namespace{false};
-
-        for (int i = 0; i < toks.size(); i++) {
-            // libclang returns ">..>>" in template as a single token...
-            auto t = toks[i];
-            if (std::all_of(t.begin(), t.end(),
-                    [](const char &c) { return c == '>'; })) {
-                toks[i] = ">";
-                for (int j = 0; j < t.size() - 1; j++)
-                    toks.insert(toks.begin() + i, ">");
-            }
-        }
-        auto template_start = std::find(toks.begin(), toks.end(), "<");
-        auto template_end = std::find(toks.rbegin(), toks.rend(), ">");
-
-        decltype(res) template_contents(
-            template_start + 1, template_end.base() - 1);
-
-        return clanguml::util::split(
-            fmt::format("{}", fmt::join(template_contents, "")), ",");
-    }
-
-    const CXCursor &get() const { return m_cursor; }
+    const CXCursor &get() const;
 
 private:
     CXCursor m_cursor;