初始化版本

src/core/menu_stack.c

@@ -0,0 +1,50 @@
+#include "menu_stack.h"
+#include <string.h>
+
+MenuErrCode menu_stack_init(MenuStack* stack) {
+    if (!stack) return MENU_ERR_INVALID_PARAM;
+    memset(stack, 0, sizeof(MenuStack));
+    stack->top = 0;
+    return MENU_ERR_OK;
+}
+
+MenuErrCode menu_stack_push(MenuStack* stack, MenuNodeId id) {
+    if (!stack) return MENU_ERR_INVALID_PARAM;
+    if (stack->top >= MENU_CONFIG_STACK_DEPTH) {
+        return MENU_ERR_STACK_OVERFLOW;
+    }
+    stack->path[stack->top++] = id;
+    return MENU_ERR_OK;
+}
+
+MenuErrCode menu_stack_pop(MenuStack* stack, MenuNodeId* id) {
+    if (!stack) return MENU_ERR_INVALID_PARAM;
+    if (stack->top == 0) {
+        return MENU_ERR_STACK_UNDERFLOW;
+    }
+    if (id) {
+        *id = stack->path[--stack->top];
+    } else {
+        stack->top--;
+    }
+    return MENU_ERR_OK;
+}
+
+MenuErrCode menu_stack_peek(const MenuStack* stack, MenuNodeId* id) {
+    if (!stack || !id) return MENU_ERR_INVALID_PARAM;
+    if (stack->top == 0) {
+        return MENU_ERR_STACK_UNDERFLOW;
+    }
+    *id = stack->path[stack->top - 1];
+    return MENU_ERR_OK;
+}
+
+bool menu_stack_is_empty(const MenuStack* stack) {
+    return (stack == NULL) || (stack->top == 0);
+}
+
+void menu_stack_clear(MenuStack* stack) {
+    if (stack) {
+        stack->top = 0;
+    }
+}