diff options
Diffstat (limited to 'deps/sol2/examples/source/table_proxy.cpp')
| -rw-r--r-- | deps/sol2/examples/source/table_proxy.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/deps/sol2/examples/source/table_proxy.cpp b/deps/sol2/examples/source/table_proxy.cpp new file mode 100644 index 0000000..899143a --- /dev/null +++ b/deps/sol2/examples/source/table_proxy.cpp @@ -0,0 +1,55 @@ +#define SOL_ALL_SAFETIES_ON 1
+#include <sol/sol.hpp>
+
+#include "assert.hpp"
+
+#include <iostream>
+
+int main () {
+
+ const auto& code = R"(
+ bark = {
+ woof = {
+ [2] = "arf!"
+ }
+ }
+ )";
+
+ sol::state lua;
+ lua.open_libraries(sol::lib::base);
+ lua.script(code);
+
+ // produces proxy, implicitly converts to std::string, quietly destroys proxy
+ std::string arf_string = lua["bark"]["woof"][2];
+
+ // lazy-evaluation of tables
+ auto x = lua["bark"];
+ auto y = x["woof"];
+ auto z = y[2];
+
+ // retrivies value inside of lua table above
+ std::string value = z;
+ c_assert(value == "arf!");
+
+ // Can change the value later...
+ z = 20;
+
+ // Yay, lazy-evaluation!
+ int changed_value = z; // now it's 20!
+ c_assert(changed_value == 20);
+ lua.script("assert(bark.woof[2] == 20)");
+
+ lua["a_new_value"] = 24;
+ lua["chase_tail"] = [](int chasing) {
+ int r = 2;
+ for (int i = 0; i < chasing; ++i) {
+ r *= r;
+ }
+ return r;
+ };
+
+ lua.script("assert(a_new_value == 24)");
+ lua.script("assert(chase_tail(2) == 16)");
+
+ return 0;
+}
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