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[clang][Interp] Enhance CodePtr #101787

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merged 1 commit into from
Aug 3, 2024
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[clang][Interp] Enhance CodePtr #101787

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13 changes: 9 additions & 4 deletions clang/lib/AST/Interp/Source.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ class Function;
/// Pointer into the code segment.
class CodePtr final {
public:
CodePtr() : Ptr(nullptr) {}
CodePtr() = default;

CodePtr &operator+=(int32_t Offset) {
Ptr += Offset;
Expand All @@ -45,11 +45,16 @@ class CodePtr final {
assert(Ptr != nullptr && "Invalid code pointer");
return CodePtr(Ptr - RHS);
}
CodePtr operator+(ssize_t RHS) const {
assert(Ptr != nullptr && "Invalid code pointer");
return CodePtr(Ptr + RHS);
}

bool operator!=(const CodePtr &RHS) const { return Ptr != RHS.Ptr; }
const std::byte *operator*() const { return Ptr; }

operator bool() const { return Ptr; }
explicit operator bool() const { return Ptr; }
bool operator<=(const CodePtr &RHS) const { return Ptr <= RHS.Ptr; }
bool operator>=(const CodePtr &RHS) const { return Ptr >= RHS.Ptr; }

/// Reads data and advances the pointer.
template <typename T> std::enable_if_t<!std::is_pointer<T>::value, T> read() {
Expand All @@ -65,7 +70,7 @@ class CodePtr final {
/// Constructor used by Function to generate pointers.
CodePtr(const std::byte *Ptr) : Ptr(Ptr) {}
/// Pointer into the code owned by a function.
const std::byte *Ptr;
const std::byte *Ptr = nullptr;
};

/// Describes the statement/declaration an opcode was generated from.
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