support __del__() for C Module

Author: pikasTech

port/linux/package/pikascript/PikaMath.pyi

@@ -16,3 +16,4 @@ class Operator(TinyObj):
     def OR(self, flag1: int, flag2: int) -> int: ...
     def NOT(self, flag: int) -> int: ...
     def __str__(self) -> str: ...
+    def __del__(self): ...

port/linux/package/pikascript/cJSON.pyi

@@ -1,6 +1,12 @@
 import imp
 from PikaObj import *
+import json
 
 
 class cJSON(TinyObj):
     def __init__(self): ...
+    def print(self) -> str: ...
+
+class Utils(TinyObj):
+    def parse(self) -> cJSON: ...
+    def createObject(self) -> cJSON: ...

port/linux/package/pikascript/pikascript-lib/PikaMath/PikaMath_Operator.c

@@ -46,3 +46,7 @@ char* PikaMath_Operator___str__(PikaObj *self){
     obj_setStr(self, "__buf", "test");
     return obj_getStr(self, "__buf");
 }
+
+void PikaMath_Operator___del__(PikaObj *self){
+    __platform_printf("del operator...\r\n");
+}

port/linux/package/pikascript/pikascript-lib/cJSON/cJSON_cJSON.c

@@ -1,3 +1,9 @@
 #include "cJSON_cJSON.h"
 
-void cJSON_cJSON___init__(PikaObj* self) {}
+char* cJSON_cJSON_print(PikaObj *self){
+
+}
+
+void cJSON_cJSON___init__(PikaObj *self){
+
+}

port/linux/test/compile-test.cpp

@@ -565,3 +565,9 @@ TEST(compiler, __str__) {
     Parser_compilePyToBytecodeArray(lines);
     EXPECT_EQ(pikaMemNow(), 0);
 }
+
+TEST(compiler, __del__) {
+    char* lines = "__del__()";
+    Parser_compilePyToBytecodeArray(lines);
+    EXPECT_EQ(pikaMemNow(), 0);
+}

port/linux/test/pikaMain-test.cpp

@@ -1789,6 +1789,7 @@ TEST(pikaMain, CModule__str__) {
     EXPECT_STREQ(log_buff[2], "BEGIN\r\n");
     /* deinit */
     obj_deinit(self);
+    EXPECT_STREQ(log_buff[0], "del operator...\r\n");
     EXPECT_EQ(pikaMemNow(), 0);
 }
 
@@ -2162,4 +2163,4 @@ TEST(pikaMain, string_str) {
     /* deinit */
     obj_deinit(self);
     EXPECT_EQ(pikaMemNow(), 0);
-}
+}

src/PikaObj.c

@@ -97,7 +97,7 @@ char* fast_itoa(char* buf, uint32_t val) {
     return &p[val < 10];
 }
 
-int32_t obj_deinit(PikaObj* self) {
+static int32_t obj_deinit_no_del(PikaObj* self) {
     /* free the list */
     args_deinit(self->list);
     /* free the pointer */
@@ -106,6 +106,22 @@ int32_t obj_deinit(PikaObj* self) {
     return 0;
 }
 
+int32_t obj_deinit(PikaObj* self) {
+    Arg* del = obj_getMethodArg(self, "__del__");
+    if (NULL != del) {
+        const uint8_t bytes[] = {
+            0x04, 0x00,             /* instruct array size */
+            0x00, 0x82, 0x01, 0x00, /* instruct array */
+            0x09, 0x00,             /* const pool size */
+            0x00, 0x5f, 0x5f, 0x64, 0x65,
+            0x6c, 0x5f, 0x5f, 0x00, /* const pool */
+        };
+        pikaVM_runByteCode(self, (uint8_t*)bytes);
+        arg_deinit(del);
+    }
+    return obj_deinit_no_del(self);
+}
+
 int32_t obj_enable(PikaObj* self) {
     obj_setInt(self, "isEnable", 1);
     return 0;
@@ -327,14 +343,21 @@ Arg* obj_getMethodArg(PikaObj* obj, char* methodPath) {
         goto exit;
     }
     methodHostClass = obj_getClassObj(obj);
+    if (NULL == methodHostClass) {
+        method = NULL;
+        goto exit;
+    }
     method = arg_copy(obj_getArg(methodHostClass, methodName));
-    obj_deinit(methodHostClass);
+    obj_deinit_no_del(methodHostClass);
 exit:
     return method;
 }
 
 PikaObj* obj_getClassObj(PikaObj* obj) {
     NewFun classPtr = (NewFun)obj_getPtr(obj, "_clsptr");
+    if (NULL == classPtr) {
+        return NULL;
+    }
     PikaObj* classObj = obj_getClassObjByNewFun(obj, "", classPtr);
     return classObj;
 }