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factor out record coercion; modernize management of coercion "map"

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This commit is contained in:
Vern Paxson 2021-03-18 10:08:31 -07:00
parent 5f5ba3881c
commit 91c2e05099
3 changed files with 27 additions and 24 deletions
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9
src/Expr.h
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@ -1170,21 +1170,24 @@ protected:
class RecordCoerceExpr final : public UnaryExpr {
public:
RecordCoerceExpr(ExprPtr op, RecordTypePtr r);
~RecordCoerceExpr() override;
// Optimization-related:
ExprPtr Duplicate() override;
const std::vector<int>& Map() const { return map; }
protected:
ValPtr InitVal(const zeek::Type* t, ValPtr aggr) const override;
ValPtr Fold(Val* v) const override;
// For each super-record slot, gives subrecord slot with which to
// fill it.
int* map;
int map_size; // equivalent to Type()->AsRecordType()->NumFields()
std::vector<int> map;
};
extern RecordValPtr coerce_to_record(RecordTypePtr rt, Val* v,
const std::vector<int>& map);
class TableCoerceExpr final : public UnaryExpr {
public:
TableCoerceExpr(ExprPtr op, TableTypePtr r);