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Extend std::span adoption to utility and AST functions (#8271)

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* Initial plan

* Add std::span to utility functions (buffer, ref_buffer, permutation, util)

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Add std::span to ast_manager array ref functions

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

* Fix: Use consistent int loop variable in apply_permutation

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>
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Copilot 2026-01-21 19:54:53 -08:00 • committed by GitHub
parent 4681c51413
commit b0313ca80a
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5 changed files with 89 additions and 29 deletions
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37
src/ast/ast.h
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@ -48,6 +48,7 @@ Revision History:
#include "util/dependency.h"
#include "util/rlimit.h"
#include <variant>
#include <span>
#define RECYCLE_FREE_AST_INDICES
@ -1667,17 +1668,29 @@ public:
}
template<typename T>
void inc_array_ref(unsigned sz, T * const * a) {
for(unsigned i = 0; i < sz; ++i) {
inc_ref(a[i]);
void inc_array_ref(std::span<T * const> a) {
for(auto elem : a) {
inc_ref(elem);
}
}
// Backward compatibility overload
template<typename T>
void inc_array_ref(unsigned sz, T * const * a) {
inc_array_ref(std::span<T * const>(a, sz));
}
template<typename T>
void dec_array_ref(std::span<T * const> a) {
for(auto elem : a) {
dec_ref(elem);
}
}
// Backward compatibility overload
template<typename T>
void dec_array_ref(unsigned sz, T * const * a) {
for(unsigned i = 0; i < sz; ++i) {
dec_ref(a[i]);
}
dec_array_ref(std::span<T * const>(a, sz));
}
static unsigned get_node_size(ast const * n);
@ -2405,11 +2418,17 @@ private:
}
template<typename T>
void push_dec_array_ref(unsigned sz, T * const * a) {
for(unsigned i = 0; i < sz; ++i) {
push_dec_ref(a[i]);
void push_dec_array_ref(std::span<T * const> a) {
for(auto elem : a) {
push_dec_ref(elem);
}
}
// Backward compatibility overload
template<typename T>
void push_dec_array_ref(unsigned sz, T * const * a) {
push_dec_array_ref(std::span<T * const>(a, sz));
}
};
typedef ast_manager::expr_array expr_array;