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Internals: Refactor function argument traits (#5269) 

No functional change intended.

Signed-off-by: Krzysztof Bieganski <kbieganski@antmicro.com>
This commit is contained in:
Krzysztof Bieganski 2024-07-16 20:55:04 +02:00 committed by GitHub
parent 0a9b31bb30
commit e11bc6beeb
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GPG Key ID: B5690EEEBB952194
2 changed files with 16 additions and 16 deletions
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24
src/V3Ast.h
View File

@ -2569,14 +2569,6 @@ private:
template <typename T_Arg, bool Default, typename Callable>
inline static bool predicateImpl(ConstCorrectAstNode<T_Arg>* nodep, const Callable& p);
template <typename T_Callable>
struct Arg0NoPointerNoCV final {
using Traits = FunctionTraits<T_Callable>;
using T_Arg0 = typename Traits::template arg<0>::type;
using T_Arg0NoPtr = typename std::remove_pointer<T_Arg0>::type;
using type = typename std::remove_cv<T_Arg0NoPtr>::type;
};
public:
// Given a callable 'f' that takes a single argument of some AstNode subtype 'T_Node', traverse
// the tree rooted at this node, and call 'f' in pre-order on each node that is of type
@ -2587,7 +2579,7 @@ public:
// caches in modern CPUs, while it is basically unpredictable for VNVisitor.
template <typename Callable>
void foreach(Callable&& f) {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable<Callable, T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Callable 'f' must have a signature compatible with 'void(T_Node*)', "
@ -2598,7 +2590,7 @@ public:
// Same as above, but for 'const' nodes
template <typename Callable>
void foreach(Callable&& f) const {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable<Callable, const T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Callable 'f' must have a signature compatible with 'void(const T_Node*)', "
@ -2609,7 +2601,7 @@ public:
// Same as 'foreach' but also traverses 'this->nextp()' transitively
template <typename Callable>
void foreachAndNext(Callable&& f) {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable<Callable, T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Callable 'f' must have a signature compatible with 'void(T_Node*)', "
@ -2620,7 +2612,7 @@ public:
// Same as above, but for 'const' nodes
template <typename Callable>
void foreachAndNext(Callable&& f) const {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable<Callable, const T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Callable 'f' must have a signature compatible with 'void(const T_Node*)', "
@ -2635,7 +2627,7 @@ public:
// be determined.
template <typename Callable>
bool exists(Callable&& p) {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable_r<bool, Callable, T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Predicate 'p' must have a signature compatible with 'bool(T_Node*)', "
@ -2646,7 +2638,7 @@ public:
// Same as above, but for 'const' nodes
template <typename Callable>
bool exists(Callable&& p) const {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable_r<bool, Callable, const T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Predicate 'p' must have a signature compatible with 'bool(const T_Node*)', "
@ -2660,7 +2652,7 @@ public:
// in some arbitrary order and is terminated as soon as the result can be determined.
template <typename Callable>
bool forall(Callable&& p) {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable_r<bool, Callable, T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Predicate 'p' must have a signature compatible with 'bool(T_Node*)', "
@ -2671,7 +2663,7 @@ public:
// Same as above, but for 'const' nodes
template <typename Callable>
bool forall(Callable&& p) const {
using T_Node = typename Arg0NoPointerNoCV<Callable>::type;
using T_Node = typename FunctionArgNoPointerNoCV<Callable, 0>::type;
static_assert(vlstd::is_invocable_r<bool, Callable, const T_Node*>::value
&& std::is_base_of<AstNode, T_Node>::value,
"Predicate 'p' must have a signature compatible with 'bool(const T_Node*)', "

8
src/V3FunctionTraits.h
View File

@ -47,4 +47,12 @@ struct FunctionTraits<ReturnType (ClassType::*)(Args...) const> VL_NOT_FINAL {
};
};
template <typename T_Callable, size_t index>
struct FunctionArgNoPointerNoCV final {
using Traits = FunctionTraits<T_Callable>;
using T_Arg = typename Traits::template arg<index>::type;
using T_ArgNoPtr = typename std::remove_pointer<T_Arg>::type;
using type = typename std::remove_cv<T_ArgNoPtr>::type;
};
#endif