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cJSON_Utils: Use enum for opcode

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This commit is contained in:
Max Bruckner 2017-04-12 11:36:14 +02:00
parent c960b2b853
commit c66342d871
1 changed files with 14 additions and 15 deletions
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29
cJSON_Utils.c
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@ -466,13 +466,15 @@ static cJSON_bool insert_item_in_array(cJSON *array, size_t which, cJSON *newite
return 1; return 1;
} }
enum patch_operation { INVALID, ADD, REMOVE, REPLACE, MOVE, COPY, TEST };
static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch) static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
{ {
cJSON *op = NULL; cJSON *op = NULL;
cJSON *path = NULL; cJSON *path = NULL;
cJSON *value = NULL; cJSON *value = NULL;
cJSON *parent = NULL; cJSON *parent = NULL;
int opcode = 0; enum patch_operation opcode = INVALID;
unsigned char *parentptr = NULL; unsigned char *parentptr = NULL;
unsigned char *childptr = NULL; unsigned char *childptr = NULL;
@ -487,23 +489,23 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
/* decode operation */ /* decode operation */
if (!strcmp(op->valuestring, "add")) if (!strcmp(op->valuestring, "add"))
{ {
opcode = 0; opcode = ADD;
} }
else if (!strcmp(op->valuestring, "remove")) else if (!strcmp(op->valuestring, "remove"))
{ {
opcode = 1; opcode = REMOVE;
} }
else if (!strcmp(op->valuestring, "replace")) else if (!strcmp(op->valuestring, "replace"))
{ {
opcode = 2; opcode = REPLACE;
} }
else if (!strcmp(op->valuestring, "move")) else if (!strcmp(op->valuestring, "move"))
{ {
opcode = 3; opcode = MOVE;
} }
else if (!strcmp(op->valuestring, "copy")) else if (!strcmp(op->valuestring, "copy"))
{ {
opcode = 4; opcode = COPY;
} }
else if (!strcmp(op->valuestring, "test")) else if (!strcmp(op->valuestring, "test"))
{ {
@ -516,8 +518,7 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
return 3; return 3;
} }
/* Remove/Replace */ if ((opcode == REMOVE) || (opcode == REPLACE))
if ((opcode == 1) || (opcode == 2))
{ {
/* Get rid of old. */ /* Get rid of old. */
cJSON *old_item = cJSONUtils_PatchDetach(object, (unsigned char*)path->valuestring); cJSON *old_item = cJSONUtils_PatchDetach(object, (unsigned char*)path->valuestring);
@ -526,7 +527,7 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
return 13; return 13;
} }
cJSON_Delete(old_item); cJSON_Delete(old_item);
if (opcode == 1) if (opcode == REMOVE)
{ {
/* For Remove, this job is done. */ /* For Remove, this job is done. */
return 0; return 0;
@ -534,7 +535,7 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
} }
/* Copy/Move uses "from". */ /* Copy/Move uses "from". */
if ((opcode == 3) || (opcode == 4)) if ((opcode == MOVE) || (opcode == COPY))
{ {
cJSON *from = cJSON_GetObjectItem(patch, "from"); cJSON *from = cJSON_GetObjectItem(patch, "from");
if (!from) if (!from)
@ -543,14 +544,12 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
return 4; return 4;
} }
if (opcode == 3) if (opcode == MOVE)
{ {
/* move */
value = cJSONUtils_PatchDetach(object, (unsigned char*)from->valuestring); value = cJSONUtils_PatchDetach(object, (unsigned char*)from->valuestring);
} }
if (opcode == 4) if (opcode == COPY)
{ {
/* copy */
value = cJSONUtils_GetPointer(object, from->valuestring); value = cJSONUtils_GetPointer(object, from->valuestring);
} }
if (!value) if (!value)
@ -558,7 +557,7 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
/* missing "from" for copy/move. */ /* missing "from" for copy/move. */
return 5; return 5;
} }
if (opcode == 4) if (opcode == COPY)
{ {
value = cJSON_Duplicate(value, 1); value = cJSON_Duplicate(value, 1);
} }