Improved tests, added a build.ninja for TeamCity, and fixed formatting again to work with Rapptz's style.

.gitignore

@@ -1,6 +1,5 @@
 obj/*
 bin/*
-*.ninja*
 demacro.txt
 Shinobi2
 dev.*
@@ -16,3 +15,5 @@ x64/
 *.sln
 *.gitattributes
 liblua.a
+sol/include/
+.ninja*

build.ninja

@@ -0,0 +1,27 @@
+# This file has been generated by shinobi version 0.9.5
+
+ninja_required_version = 1.3
+builddir = bin
+objdir = obj
+cxx = g++
+cxxflags = -std=c++11 -pedantic -pedantic-errors -Wextra -Wall -O2 -DNDEBUG
+incflags = -I"." -I"./include" -I"." -I"./lua-5.2.2/src/" -I"./Catch/include/"
+linkflags = -static liblua.a -L"./lib"
+
+rule compile
+    command = $cxx -MMD -MF $out.d $cxxflags -c $in -o $out $incflags
+    deps = gcc
+    depfile = $out.d
+    description = Compiling $in
+
+rule link
+    command = $cxx $in -o $out $linkflags
+    description = Creating $out
+
+build $objdir/sol.scratch.o: compile sol.scratch.cpp
+
+build $builddir/sol.scratch: link $objdir/sol.scratch.o
+
+build install: phony $builddir/sol.scratch
+
+default install

sol.scratch.cpp

@@ -16,6 +16,11 @@ struct object {
 
 };
 
+int plop_xyz(int x, int y, std::string z) {
+    std::cout << x << " " << y << " " << z << std::endl;
+    return 11;
+}
+
 void run_script(sol::state& lua) {
     lua.script("assert(os.fun() == \"test\")\n"
         "assert(os.name == \"windows\")");
@@ -66,6 +71,90 @@ TEST_CASE( "simple/addition", "" ) {
     REQUIRE(c == 9.2);
 }
 
+TEST_CASE("simple/if", "") {
+    sol::state lua;
+
+    std::string program = "if true then f = 0.1 else f = 'test' end";
+    lua.script(program);
+    auto f = lua.get<double>("f");
+
+    REQUIRE(f == 0.1);
+}
+
+TEST_CASE("simple/evalStream", "The VM evaluates a stream's contents using a reader") {
+    sol::state lua;
+
+    std::stringstream sscript;
+    int g = 9;
+    sscript << "g = " << g << ";";
+
+    REQUIRE_NOTHROW(lua.script(sscript.str()));
+    REQUIRE(lua.get<double>("g") == 9.0);
+}
+
+TEST_CASE("simple/callWithParameters", "Lua function is called with a few parameters from C++") {
+    sol::state lua;
+
+    REQUIRE_NOTHROW(lua.script("function my_add(i, j, k) return i + j + k end"));
+    auto f = lua.get<sol::function>("my_add");
+    REQUIRE_NOTHROW(f.call<int>(1, 2, 3));
+    REQUIRE_THROWS(f.call<int>(1, 2, "arf"));
+}
+
+TEST_CASE("simple/callCppFunction", "C++ function is called from lua") {
+    sol::state lua;
+
+    lua.set_function("plop_xyz", plop_xyz);
+    lua.script("x = plop_xyz(2, 6, 'hello')");
+ 
+    REQUIRE(lua.get<int>("x") == 11);
+}
+
+TEST_CASE("simple/callLambda", "A C++ lambda is exposed to lua and called") {
+    sol::state lua;
+
+    int x = 0;
+
+    lua.set_function("foo", [ &x ] { x = 1; });
+
+    lua.script("foo()");
+
+    REQUIRE(x == 1);
+}
+
+TEST_CASE("advanced/callLambdaReturns", "Checks for lambdas returning values") {
+    sol::state lua;
+
+    lua.set_function("a", [ ] { return 42; });
+    lua.set_function("b", [ ] { return 42u; });
+    lua.set_function("c", [ ] { return 3.14; });
+    lua.set_function("d", [ ] { return 6.28f; });
+    lua.set_function("e", [ ] { return "lol"; });
+    lua.set_function("f", [ ] { return true; });
+    lua.set_function("g", [ ] { return std::string("str"); });
+    lua.set_function("h", [ ] { });
+    lua.set_function("i", [ ] { return sol::nil; });
+}
+
+TEST_CASE("advanced/callLambda2", "A C++ lambda is exposed to lua and called") {
+    sol::state lua;
+
+    int x = 0;
+    lua.set_function("set_x", [ &] (int new_x) {
+        x = new_x;
+        return 0;
+    });
+
+    lua.script("set_x(9)");
+    REQUIRE(x == 9);
+}
+
+TEST_CASE("negative/basicError", "Check if error handling works correctly") {
+    sol::state lua;
+
+    REQUIRE_THROWS(lua.script("nil[5]"));
+}
+
 /*
     lua.get<sol::table>("os").set("name", "windows");
 

sol/function.hpp

@@ -30,22 +30,22 @@ namespace sol {
 class function : virtual public reference {
 private:
     template<typename... Ret>
-    std::tuple<Ret...> call(types<Ret...>, std::size_t n) {
+    std::tuple<Ret...> invoke(types<Ret...>, std::size_t n) {
-        lua_pcall(state(), n, sizeof...(Ret), 0);
+        lua_pcall(state(), static_cast<int>(n), sizeof...(Ret), 0);
        return stack::pop_call(state(), std::make_tuple<Ret...>, types<Ret...>());
     }
 
     template<typename Ret>
-    Ret call(types<Ret>, std::size_t n) {
+    Ret invoke(types<Ret>, std::size_t n) {
-        lua_pcall(state(), n, 1, 0);
+        lua_pcall(state(), static_cast<int>(n),  1, 0);
         return stack::pop<Ret>(state());
     }
 
-    void call(types<void>, std::size_t n) {
+    void invoke(types<void>, std::size_t n) {
         lua_pcall(state(), static_cast<uint32_t>(n), 0, 0);
     }
 
-    void call(types<>, std::size_t n) {
+    void invoke(types<>, std::size_t n) {
         lua_pcall(state(), static_cast<uint32_t>(n), 0, 0);
     }
 
@@ -56,10 +56,10 @@ public:
     }
 
     template<typename... Ret, typename... Args>
-    auto invoke(Args&&... args) -> decltype(call(types<Ret...>(), sizeof...(Args))) {
+    auto call(Args&&... args) -> decltype(invoke(types<Ret...>(), sizeof...(Args))) {
         push();
         stack::push_args(state(), std::forward<Args>(args)...);
-        return call(types<Ret...>(), sizeof...(Args));
+        return invoke(types<Ret...>(), sizeof...(Args));
     }
 };
 } // sol

sol/state.hpp

@@ -115,13 +115,21 @@ public:
         }
     }
 
+    void eval(const std::string& code) {
+        script(code);
+    }
+
     void script(const std::string& code) {
         if(luaL_dostring(L.get(), code.c_str())) {
             lua_error(L.get());
         }
     }
 
-    void open_file(const std::string& filename) {
+    void eval_file(const std::string& filename) {
+        script_file(filename);
+    }
+
+    void script_file(const std::string& filename) {
         if (luaL_dofile(L.get(), filename.c_str())) {
             lua_error(L.get());
         }