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IndexType: Add IsPatternIndex(), like IsSubNetIndex()

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This commit is contained in:
Arne Welzel 2023-11-01 14:07:27 +01:00
parent 074f51fc96
commit c8bab6a0ec
5 changed files with 16 additions and 9 deletions
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9
src/Expr.cc
View file

@ -2383,11 +2383,10 @@ IndexExpr::IndexExpr(ExprPtr arg_op1, ListExprPtr arg_op2, bool arg_is_slice, bo
return;
if ( op1->GetType()->Tag() == TYPE_TABLE ) { // Check for a table[pattern] being indexed by a string
auto table_type = op1->GetType()->AsTableType();
auto& it = table_type->GetIndexTypes();
auto& rhs_type = op2->GetType()->AsTypeList()->GetTypes();
if ( it.size() == 1 && it[0]->Tag() == TYPE_PATTERN && table_type->Yield() && rhs_type.size() == 1 &&
rhs_type[0]->Tag() == TYPE_STRING ) {
const auto& table_type = op1->GetType()->AsTableType();
const auto& rhs_type = op2->GetType()->AsTypeList()->GetTypes();
if ( table_type->IsPatternIndex() && table_type->Yield() && rhs_type.size() == 1 &&
IsString(rhs_type[0]->Tag()) ) {
is_pattern_table = true;
SetType(make_intrusive<VectorType>(op1->GetType()->Yield()));
return;

7
src/Type.cc
View file

@ -389,6 +389,13 @@ bool IndexType::IsSubNetIndex() const {
return false;
}
bool IndexType::IsPatternIndex() const {
const auto& types = indices->GetTypes();
if ( types.size() == 1 && types[0]->Tag() == TYPE_PATTERN )
return true;
return false;
}
detail::TraversalCode IndexType::Traverse(detail::TraversalCallback* cb) const {
auto tc = cb->PreType(this);
HANDLE_TC_TYPE_PRE(tc);

3
src/Type.h
View file

@ -356,6 +356,9 @@ public:
// Returns true if this table is solely indexed by subnet.
bool IsSubNetIndex() const;
// Returns true if this table has a single index of type pattern.
bool IsPatternIndex() const;
detail::TraversalCode Traverse(detail::TraversalCallback* cb) const override;
protected:

3
src/Val.cc
View file

@ -1547,8 +1547,7 @@ void TableVal::Init(TableTypePtr t, bool ordered) {
else
subnets = nullptr;
auto& it = table_type->GetIndexTypes();
if ( it.size() == 1 && it[0]->Tag() == TYPE_PATTERN && table_type->Yield() )
if ( table_type->IsPatternIndex() && table_type->Yield() )
pattern_matcher = new TablePatternMatcher(this, table_type->Yield());
table_hash = new detail::CompositeHash(table_type->GetIndices());

3
src/script_opt/CPP/Exprs.cc
View file

@ -391,8 +391,7 @@ string CPPCompile::GenIndexExpr(const Expr* e, GenType gt) {
auto ind_expr = e->GetOp2()->AsListExpr()->Exprs()[0];
auto is_pat_str_ind = false;
auto& indices = aggr_t->AsTableType()->GetIndices()->GetTypes();
if ( indices.size() == 1 && indices[0]->Tag() == TYPE_PATTERN && ind_expr->GetType()->Tag() == TYPE_STRING )
if ( aggr_t->AsTableType()->IsPatternIndex() && ind_expr->GetType()->Tag() == TYPE_STRING )
is_pat_str_ind = true;
if ( inside_when ) {