1 /*
2  * Copyright 2019 WebAssembly Community Group participants
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "support/debug.h"
18 
19 #include <cstring>
20 #include <set>
21 #include <string>
22 
23 #ifndef NDEBUG
24 
25 static bool debugEnabled = false;
26 static std::set<std::string> debugTypesEnabled;
27 
isDebugEnabled(const char * type)28 bool wasm::isDebugEnabled(const char* type) {
29   if (!debugEnabled) {
30     return false;
31   }
32   if (debugTypesEnabled.empty()) {
33     return true;
34   }
35   return debugTypesEnabled.count(type) > 0;
36 }
37 
setDebugEnabled(const char * types)38 void wasm::setDebugEnabled(const char* types) {
39   debugEnabled = true;
40   // split types on comma and add each string to debugTypesEnabled
41   size_t start = 0;
42   size_t end = strlen(types);
43   while (start < end) {
44     const char* type_end = strchr(types + start, ',');
45     if (type_end == nullptr) {
46       type_end = types + end;
47     }
48     size_t type_size = type_end - (types + start);
49     std::string type(types + start, type_size);
50     debugTypesEnabled.insert(type);
51     start += type_size + 1;
52   }
53 }
54 
55 #endif
56