Breadcrumb not working correctly when using macros #9224
Description
Bug type: Language Service
Keywords: Breadcrumb, Macro, sizeof
(I assume these two won't matter)
- OS and Version: Windows 10
- VS Code Version: 1.65.2
(aka the newest official one)
- C/C++ Extension Version: 1.9.8
So, I had this bug for quite a long time now and searching for open issues with "breadcrumbs" only yielded 3 results; neither of which fitted this one.
I have this combination of macros I use all the time for iterating arrays and they always break the breadcrumbs; see the image below; I cannot exactly pinpoint the reason why it breaks. My original idea was that it had to do with nested macros, but that doesn't fit Func3b vs. Func3c.
Here is how the breadcrumbs look like:
While this is annoying, it gets REALLY annoying, if the function using the macro does other stuff as well; here I added Func7 at the end, that also declares a variable and calls a function
Below is the C/C++ log:
-------- Diagnostics - 22.4.2022, 14:17:55
Version: 1.9.8
Current Configuration:
{
"name": "Win64",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [
"_DEBUG"
],
"windowsSdkVersion": "10.0.17763.0",
"cStandard": "c11",
"cppStandard": "c++17",
"intelliSenseMode": "msvc-x64",
"compilerPathIsExplicit": false,
"cStandardIsExplicit": true,
"cppStandardIsExplicit": true,
"intelliSenseModeIsExplicit": true,
"macFrameworkPath": [],
"compilerArgs": [],
"mergeConfigurations": false,
"compilerPath": "C:/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/VC/Tools/MSVC/14.29.30037/bin/Hostx64/x64/cl.exe",
"browse": {
"path": [
"${workspaceFolder}/**"
],
"limitSymbolsToIncludedHeaders": true
}
}
Translation Unit Mappings:
[ C:\Users\Tobia\Documents\Programs\GUITest\code\dummy.cpp ]:
C:\Users\Tobia\Documents\Programs\GUITest\code\dummy.cpp
Translation Unit Configurations:
[ C:\Users\Tobia\Documents\Programs\GUITest\code\dummy.cpp ]:
Process ID: 21196
Memory Usage: 15 MB
Compiler Path: C:/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/VC/Tools/MSVC/14.29.30037/bin/Hostx64/x64/cl.exe
Includes:
C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO\2019\BUILDTOOLS\VC\TOOLS\MSVC\14.29.30037\INCLUDE
C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.19041.0\UM
C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.19041.0\UCRT
C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.19041.0\SHARED
C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.19041.0\WINRT
C:\PROGRAM FILES (X86)\WINDOWS KITS\10\INCLUDE\10.0.19041.0\CPPWINRT
Defines:
_DEBUG
Standard Version: ms_c++17
IntelliSense Mode: windows-msvc-x64
Total Memory Usage: 15 MB
------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 4966
And here are the contents of the file:
#define inc0(varname, max) for (int varname = 0; varname < max; ++varname)
#define ArrayCount(array) (sizeof(array) / sizeof((array)[0]))
// NOTE: This is like ArrayCount but without the parenthesis (just for testing the breadcrumbs)
#define ArrayCount2(array) sizeof(array) / sizeof((array)[0])
int MyArray[10];
void Func1() {
// No macro; WORKS
for (int i = 0; i < (sizeof(MyArray) / sizeof((MyArray)[0])); ++i) {
MyArray[i] = 4;
}
}
void Func2() {
// Only ArrayCount; WORKS
for (int i = 0; i < ArrayCount(MyArray); ++i) {
MyArray[i] = 4;
}
}
void Func3a() {
// Only inc0, with int; WORKS
inc0 (i, 10) {
MyArray[i] = 4;
}
}
void Func3b() {
// Only inc0, with resolved ArrayCount; BREAKS
inc0 (i, (sizeof(MyArray) / sizeof((MyArray)[0]))) {
MyArray[i] = 4;
}
}
void Func3c() {
// Only inc0, with resolved ArrayCount (but without parenthesis around); WORKS
inc0 (i, sizeof(MyArray) / sizeof((MyArray)[0])) {
MyArray[i] = 4;
}
}
void Func4() {
// Both macros; BREAKS
inc0 (i, ArrayCount(MyArray)) {
MyArray[i] = 4;
}
}
void Func5() {
// inc0, ArrayCount2; BREAKS
inc0 (i, ArrayCount2(MyArray)) {
MyArray[i] = 4;
}
}
void Func6() {
int whatever = 0;
}
void Func7() {
inc0 (i, ArrayCount(MyArray)) {
MyArray[i] = 4;
}
int a = 0;
Func1();
}