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Lambdas selectively clone from the closure.

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This commit is contained in:
Zeke Medley 2019-06-21 12:02:41 -07:00
parent 63117de050
commit 8257a644d3
6 changed files with 62 additions and 39 deletions
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6
src/Frame.h
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@ -57,7 +57,7 @@ public:
// Deep-copies values.
virtual Frame* Clone();
// Only deep-copies values corresponding to requested IDs.
Frame* SelectiveClone(id_list* selection);
virtual Frame* SelectiveClone(id_list* selection);
// If the frame is run in the context of a trigger condition evaluation,
// the trigger needs to be registered.
@ -112,6 +112,7 @@ public:
Val* GetElement(ID* id) const override;
void SetElement(const ID* id, Val* v) override;
Frame* Clone() override;
Frame* SelectiveClone(id_list* selection) override;
private:
Frame* closure;
@ -123,6 +124,9 @@ private:
// Moves through the closure frames and associates val with id.
static void SetInClosure(Frame* start, const ID* id, Val* val);
bool closure_contains(const ID* i) const
{ return this->closure_elements.find(i->Name()) != this->closure_elements.end(); }
// Hashes c style strings. The strings need to be null-terminated.
struct const_char_hasher {
size_t operator()(const char* in) const