Add for and while semantics + tests

src/interpreter.cpp

@@ -50,6 +50,33 @@ EvalResult eval(Node &ast, Memory &memory) {
 
                 return {};
             } break;
+            case NodeType::While: {
+                while (true) {
+                    int cond = get<int>(eval(node.children[0], memory));
+                    if (!cond) break;
+
+                    eval(node.children[1], memory);
+                }
+
+                return {};
+            } break;
+            case NodeType::For: {
+                memory.add_scope();
+
+                eval(node.children[0], memory);
+
+                while (true) {
+                    int cond = get<int>(eval(node.children[1], memory));
+                    if (!cond) break;
+
+                    eval(node.children[3], memory);
+                    eval(node.children[2], memory);
+                }
+
+                memory.remove_scope();
+
+                return {};
+            } break;
             case NodeType::Bloc: {
                 memory.add_scope();
                 eval(node.children[0], memory);

test/statements.cpp

@@ -35,5 +35,17 @@ int main() {
         true
     );
 
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(get<int>(execute("int i = 0; while (i < 100) i++; i;")) == 100),
+        "While",
+        true
+    );
+
+    _TEST_ASSERT(
+        _TEST_NO_EXCEPTION(get<int>(execute("int i = 0; for (int j = 0; j < 100; j++) { i++; } i;")) == 100),
+        "For",
+        true
+    );
+
     return 0;
 }