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Allow negative values to count macro arguments from the end (#1670)

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Rangi
2025-04-20 00:37:50 -04:00
committed by GitHub
parent df83bc31d2
commit 0b7cda9e0c
7 changed files with 91 additions and 11 deletions
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12
src/asm/macro.cpp
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@@ -8,10 +8,16 @@
#include "asm/warning.hpp"
std::shared_ptr<std::string> MacroArgs::getArg(uint32_t i) const {
uint32_t realIndex = i + shift - 1;
std::shared_ptr<std::string> MacroArgs::getArg(int32_t i) const {
// Bracketed macro arguments adjust negative indexes such that -1 is the last argument.
if (i < 0) {
i += args.size() + 1;
}
return realIndex >= args.size() ? nullptr : args[realIndex];
int32_t realIndex = i + shift - 1;
return realIndex < 0 || static_cast<uint32_t>(realIndex) >= args.size() ? nullptr
: args[realIndex];
}
std::shared_ptr<std::string> MacroArgs::getAllArgs() const {