object support

include/mstch/mstch.hpp

@@ -21,12 +21,14 @@ namespace mstch {
             }
         protected:
             template<class S>
-            void register_methods(S* sub, std::map<std::string,N(S::*)()> methods) {
-                for(auto& m: methods)
-                    this->methods.insert(m.first, std::bind(m.second, sub));
+            void register_method(std::string name, S* sub, N(S::*method)()) {
+                this->methods.insert({name, std::bind(method, sub)});
+            }
+            void register_method(std::string name, const N& node) {
+                this->methods.insert({name, [node](){return node;}});
             }
         private:
-            const std::map<std::string, std::function<N()>> methods;
+            std::map<std::string, std::function<N()>> methods;
         };
     }
 

src/CMakeLists.txt

@@ -10,7 +10,6 @@ set(SRC
 	state/in_section.cpp
 	state/outside_section.cpp
 	visitor/get_token.cpp
-	visitor/has_token.cpp
 	visitor/is_node_empty.cpp
 	visitor/render_node.cpp
 	visitor/render_section.cpp

src/render_context.cpp

@@ -1,7 +1,6 @@
 #include "render_context.hpp"
 #include "utils.hpp"
 #include "state/outside_section.hpp"
-#include "visitor/has_token.hpp"
 #include "visitor/get_token.hpp"
 
 using namespace mstch;
@@ -44,9 +43,10 @@ mstch::node render_context::find_node(
                 token.substr(token.rfind('.') + 1),
                 {find_node(token.substr(0, token.rfind('.')), current_nodes)});
     else
-        for (auto& node: current_nodes)
-            if (boost::apply_visitor(visitor::has_token(token), node))
-                return boost::apply_visitor(visitor::get_token(token, node), node);
+        for (auto& node: current_nodes) {
+            auto ret = boost::apply_visitor(visitor::get_token(token, node), node);
+            if(ret.first) return ret.second;
+        }
     return null_node;
 }
 

src/state/outside_section.cpp

@@ -19,9 +19,10 @@ std::string state::outside_section::render(
         break;
     case token::type::variable:
     case token::type::unescaped_variable: {
-        return boost::apply_visitor(visitor::render_node((token.token_type() ==
-                token::type::variable)?flag::escape_html:flag::none),
-                ctx.get_node(token.content()));
+        auto visitor = visitor::render_node((token.token_type() ==
+            token::type::variable)?flag::escape_html:flag::none);
+        auto node = ctx.get_node(token.content());
+        return boost::apply_visitor(visitor, node);
     }
     case token::type::comment: break;
     case token::type::text:

src/visitor/get_token.cpp

@@ -8,30 +8,36 @@ get_token::get_token(const std::string& token, const mstch::node& node):
 {
 }
 
-mstch::node get_token::operator()(const boost::blank& blank) const {
-    return node;
+std::pair<bool,node> get_token::operator()(const boost::blank& blank) const {
+    return {token == ".", node};
 }
 
-mstch::node get_token::operator()(const int& i) const {
-    return node;
+std::pair<bool,node> get_token::operator()(const int& i) const {
+    return {token == ".", node};
 }
 
-mstch::node get_token::operator()(const bool& b) const {
-    return node;
+std::pair<bool,node> get_token::operator()(const bool& b) const {
+    return {token == ".", node};
 }
 
-mstch::node get_token::operator()(const std::string& str) const {
-    return node;
+std::pair<bool,node> get_token::operator()(const std::string& str) const {
+    return {token == ".", node};
 }
 
-mstch::node get_token::operator()(const array& arr) const {
-    return node;
+std::pair<bool,node> get_token::operator()(const array& arr) const {
+    return {token == ".", node};
 }
 
-mstch::node get_token::operator()(const map& map) const {
-    return map.at(token);
+std::pair<bool,node> get_token::operator()(const map& map) const {
+    if(map.count(token) == 1)
+        return {true, map.at(token)};
+    else
+        return {false, node};
 }
 
-mstch::node get_token::operator()(const std::shared_ptr<object>& obj) const {
-    return obj->at(token);
+std::pair<bool,node> get_token::operator()(const std::shared_ptr<object>& obj) const {
+    if (obj->has(token))
+        return {true, obj->at(token)};
+    else
+        return {false, node};
 }

src/visitor/get_token.hpp

@@ -6,16 +6,16 @@
 
 namespace mstch {
     namespace visitor {
-        class get_token: public boost::static_visitor<node> {
+        class get_token: public boost::static_visitor<std::pair<bool,mstch::node>> {
         public:
             get_token(const std::string& token, const mstch::node& node);
-            mstch::node operator()(const boost::blank& blank) const;
-            mstch::node operator()(const int& i) const;
-            mstch::node operator()(const bool& b) const;
-            mstch::node operator()(const std::string& str) const;
-            mstch::node operator()(const array& arr) const;
-            mstch::node operator()(const map& map) const;
-            mstch::node operator()(const std::shared_ptr<object>& obj) const;
+            std::pair<bool,mstch::node> operator()(const boost::blank& blank) const;
+            std::pair<bool,mstch::node> operator()(const int& i) const;
+            std::pair<bool,mstch::node> operator()(const bool& b) const;
+            std::pair<bool,mstch::node> operator()(const std::string& str) const;
+            std::pair<bool,mstch::node> operator()(const array& arr) const;
+            std::pair<bool,mstch::node> operator()(const map& map) const;
+            std::pair<bool,mstch::node> operator()(const std::shared_ptr<object>& obj) const;
         private:
             const std::string& token;
             mstch::node node;

src/visitor/has_token.cpp

@@ -1,35 +0,0 @@
-#include "has_token.hpp"
-
-using namespace mstch;
-using namespace mstch::visitor;
-
-has_token::has_token(const std::string& token): token(token) {
-}
-
-bool has_token::operator()(const boost::blank& blank) const {
-    return false;
-}
-
-bool has_token::operator()(const int& i) const {
-    return token == ".";
-}
-
-bool has_token::operator()(const bool& b) const {
-    return token == ".";
-}
-
-bool has_token::operator()(const std::string& str) const {
-    return token == ".";
-}
-
-bool has_token::operator()(const array& arr) const {
-    return token == ".";
-}
-
-bool has_token::operator()(const map& map) const {
-    return map.count(token) == 1;
-}
-
-bool has_token::operator()(const std::shared_ptr<object>& obj) const {
-    return obj->has(token);
-}

src/visitor/has_token.hpp

@@ -1,23 +0,0 @@
-#pragma once
-
-#include <boost/variant/static_visitor.hpp>
-#include <boost/blank.hpp>
-#include "mstch/mstch.hpp"
-
-namespace mstch {
-    namespace visitor {
-        class has_token: public boost::static_visitor<bool> {
-        public:
-            has_token(const std::string& token);
-            bool operator()(const boost::blank& blank) const;
-            bool operator()(const int& i) const;
-            bool operator()(const bool& b) const;
-            bool operator()(const std::string& str) const;
-            bool operator()(const array& arr) const;
-            bool operator()(const map& map) const;
-            bool operator()(const std::shared_ptr<object>& obj) const;
-        private:
-            const std::string& token;
-        };
-    }
-}

src/visitor/render_node.hpp

@@ -3,12 +3,15 @@
 #include <boost/variant/static_visitor.hpp>
 #include <boost/blank.hpp>
 #include "mstch/mstch.hpp"
+#include "utils.hpp"
 
 namespace mstch {
     namespace visitor {
-        class render_node: public boost::static_visitor<std::string> {
+        class render_node : public boost::static_visitor<std::string> {
         public:
-            enum class flag { none, escape_html };
+            enum class flag {
+                none, escape_html
+            };
             render_node(flag p_flag = flag::none);
             std::string operator()(const boost::blank& blank) const;
             std::string operator()(const int& i) const;

test/data/comments.hpp

@@ -1,7 +1,7 @@
 class comments: public mstch::object {
 public:
   comments() {
-    register_methods(this, {{"title", &title}});
+    register_method("title", this, &comments::title);
   }
 
   mstch::node title() {

test/data/complex.hpp

@@ -0,0 +1,49 @@
+class complex_item: public mstch::object {
+private:
+  const std::string name;
+  const bool current;
+  const std::string url;
+public:
+  complex_item(const std::string& name, bool current, const std::string& url):
+      name{name}, current{current}, url{url}
+  {
+    register_method("name", {name});
+    register_method("current", {current});
+    register_method("url", {url});
+    register_method("link", this, &complex_item::link);
+  }
+
+  mstch::node link() {
+    return !current;
+  }
+};
+
+class complex: public mstch::object {
+private:
+  const std::string header;
+  const mstch::array item;
+public:
+  complex():
+      header{"Colors"},
+      item{
+        std::make_shared<complex_item>("red", true, "#Red"),
+        std::make_shared<complex_item>("green", false, "#Green"),
+        std::make_shared<complex_item>("blue", false, "#Blue")
+      }
+  {
+    register_method("header", {header});
+    register_method("item", {item});
+    register_method("list", this, &complex::list);
+    register_method("empty", this, &complex::empty);
+  }
+
+  mstch::node list() {
+    return item.size() != 0;
+  }
+
+  mstch::node empty() {
+    return item.size() == 0;
+  }
+};
+
+const auto complex_data = std::make_shared<complex>();

test/data/dot_notation.hpp

@@ -0,0 +1,25 @@
+class dot_notation_price: public mstch::object {
+private:
+  const int value;
+  const mstch::map currency;
+public:
+  dot_notation_price():
+    value{200}, currency{{"symbol", std::string{"$"}}, {"name", std::string{"USD"}}}
+  {
+    register_method("value", {value});
+    register_method("vat", this, &dot_notation_price::vat);
+    register_method("currency", {currency});
+  }
+
+  mstch::node vat() {
+    return static_cast<int>(value * 0.2);
+  }
+};
+
+const auto dot_notation_data = mstch::map{
+  {"name", std::string{"A Book"}},
+  {"authors", mstch::array{std::string{"John Power"}, std::string{"Jamie Walsh"}}},
+  {"price", std::make_shared<dot_notation_price>()},
+  {"availability", mstch::map{{"status", true}, {"text", std::string{"In Stock"}}}},
+  {"truthy", mstch::map{{"zero", 0}, {"notTrue", false}}}
+};

test/data/empty_string.hpp

@@ -1,4 +1,4 @@
-const auto empty_sections_data = mstch::map{
+const auto empty_string_data = mstch::map{
   {"description", std::string{"That is all!"}},
   {"child", mstch::map{
     {"description", std::string{""}}

test/data/empty_template.hpp

@@ -1 +1 @@
-const auto empty_sections_data = mstch::map{};
+const auto empty_template_data = mstch::map{};

test/data/error_not_found.hpp

@@ -1,3 +1,3 @@
-const auto empty_sections_data = mstch::map{
+const auto error_not_found_data = mstch::map{
   {"bar", 2}
 };

test/data/escaped.hpp

@@ -1,7 +1,8 @@
 class escaped: public mstch::object {
 public:
   escaped() {
-    register_methods(this, {{"title", &title}, {"entities", &entities}});
+    register_method("title", this, &escaped::title);
+    register_method("entities", this, &escaped::entities);
   }
 
   mstch::node title() {

test/data/included_tag.hpp

@@ -1,3 +1,3 @@
-const auto inlcuded_tag_data = mstch::map{
+const auto included_tag_data = mstch::map{
   {"html", std::string{"I like {{mustache}}"}}
 };

test/data/lambda/complex.js

@@ -1,19 +0,0 @@
-({
-  header: function () {
-    return "Colors";
-  },
-  item: [
-      {name: "red", current: true, url: "#Red"},
-      {name: "green", current: false, url: "#Green"},
-      {name: "blue", current: false, url: "#Blue"}
-  ],
-  link: function () {
-    return this["current"] !== true;
-  },
-  list: function () {
-    return this.item.length !== 0;
-  },
-  empty: function () {
-    return this.item.length === 0;
-  }
-})

test/data/lambda/dot_notation.js

@@ -1,23 +0,0 @@
-({
-  name: "A Book",
-  authors: ["John Power", "Jamie Walsh"],
-  price: {
-    value: 200,
-    vat: function () {
-      return this.value * 0.2;
-    },
-    currency: {
-      symbol: '$',
-      name: 'USD'
-    }
-  },
-  availability: {
-    status: true,
-    text: "In Stock"
-  },
-  // And now, some truthy false values
-  truthy: {
-    zero: 0,
-    notTrue: false
-  }
-})

test/data/nested_higher_order_sections.hpp

@@ -1,9 +1,8 @@
 class nested_higher_order_sections: public mstch::object {
 public:
   nested_higher_order_sections() {
-    register_methods(this, {
-        {"bold", &nested_higher_order_sections::bold},
-        {"person", &nested_higher_order_sections::person}});
+    register_method("bold", this, &nested_higher_order_sections::bold);
+    register_method("person", this, &nested_higher_order_sections::person);
   }
 
   mstch::node bold() {

test/data/partial_template.hpp

@@ -1,9 +1,8 @@
 class partial_template: public mstch::object {
 public:
   partial_template() {
-    register_methods(this, {
-        {"title", &partial_template::title},
-        {"again", &partial_template::again}});
+    register_method("title", this, &partial_template::title);
+    register_method("again", this, &partial_template::again);
   }
 
   mstch::node title() {

test/data/section_functions_in_partials.hpp

@@ -1,7 +1,7 @@
 class section_functions_in_partials: public mstch::object {
 public:
   section_functions_in_partials() {
-    register_methods(this, {{"bold"}, &section_functions_in_partials::bold});
+    register_method("bold", this, &section_functions_in_partials::bold);
   }
 
   mstch::node bold() {

test/data/unescaped.hpp

@@ -1,7 +1,7 @@
 class unescaped: public mstch::object {
 public:
   unescaped() {
-    register_methods(this, {{"title", &unescaped::title}});
+    register_method("title", this, &unescaped::title);
   }
 
   mstch::node title() {
@@ -9,4 +9,4 @@ public:
   }
 };
 
-const auto unescped_data = std::make_shared<unescaped>();
+const auto unescaped_data = std::make_shared<unescaped>();

test/filetoheader.cpp

@@ -12,6 +12,7 @@ void wrap_code(std::istream& input, std::ostream& output) {
         output << line;
         if(!input.eof()) output << std::endl;
     }
+    output << std::endl;
 }
 
 void wrap_string(std::istream& input, std::ostream& output, const std::string& variable_name) {

test/test_main.cpp

@@ -20,16 +20,18 @@ MSTCH_TEST(array_of_strings)
 MSTCH_TEST(backslashes)
 MSTCH_TEST(bug_11_eating_whitespace)
 MSTCH_TEST(bug_length_property)
-//MSTCH_TEST(comments)
+MSTCH_TEST(comments)
+MSTCH_TEST(complex)
 MSTCH_TEST(context_lookup)
 MSTCH_TEST(disappearing_whitespace)
+MSTCH_TEST(dot_notation)
 MSTCH_TEST(double_render)
 MSTCH_TEST(empty_list)
 MSTCH_TEST(empty_sections)
 MSTCH_TEST(empty_string)
 MSTCH_TEST(empty_template)
 MSTCH_TEST(error_not_found)
-//MSTCH_TEST(escaped)
+MSTCH_TEST(escaped)
 MSTCH_TEST(falsy)
 MSTCH_TEST(falsy_array)
 MSTCH_TEST(grandparent_context)
@@ -50,7 +52,7 @@ MSTCH_PARTIAL_TEST(partial_array)
 MSTCH_PARTIAL_TEST(partial_array_of_partials)
 MSTCH_PARTIAL_TEST(partial_array_of_partials_implicit)
 MSTCH_PARTIAL_TEST(partial_empty)
-//MSTCH_PARTIAL_TEST(partial_template)
+MSTCH_PARTIAL_TEST(partial_template)
 MSTCH_TEST(recursion_with_same_names)
 MSTCH_TEST(reuse_of_enumerables)
 MSTCH_TEST(section_as_context)
@@ -58,6 +60,6 @@ MSTCH_TEST(section_as_context)
 MSTCH_TEST(string_as_context)
 MSTCH_TEST(two_in_a_row)
 MSTCH_TEST(two_sections)
-//MSTCH_TEST(unescaped)
+MSTCH_TEST(unescaped)
 MSTCH_TEST(whitespace)
 MSTCH_TEST(zero_view)