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Call parent constructor from LambdaExpr.

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This commit is contained in:
Zeke Medley 2019-07-01 10:36:21 -07:00
parent f47390f66a
commit 409f27955b
10 changed files with 37 additions and 51 deletions
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31
src/Frame.h
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@ -18,8 +18,9 @@ class Val;
class Frame : public BroObj {
public:
Frame(int size, const BroFunc* func, const val_list *fn_args);
// The constructed frame becomes a view of the input frame. No copying is done.
Frame(const Frame* other, bool is_view = false);
// Constructs a copy or view of other. If a view is constructed the
// destructor will not change other's state on deletion.
Frame(const Frame* other, bool is_view = false);
~Frame() override;
Val* NthElement(int n) const { return frame[n]; }
@ -95,19 +96,11 @@ protected:
};
// Class that allows for lookups in both a closure frame and a regular frame
// according to a list of outer IDs passed into the constructor.
// Facts:
// - A ClosureFrame is created from two frames: a closure and a regular frame.
// - ALL operations except Get/SetElement operations operate on the regular frame.
// - A ClosureFrame requires a list of outside ID's captured by the closure.
// - Get/Set operations on those IDs will be performed on the closure frame.
// ClosureFrame allows functions that generate functions to be passed between
// different sized frames and still properly capture their closures. It also allows for
// cleaner handling of closures.
/**
* Class that allows for actions in both a regular frame and a closure frame
* according to a list of outer IDs captured in the closure passed into the
* constructor.
*/
class ClosureFrame : public Frame {
public:
ClosureFrame(Frame* closure, Frame* body,
@ -122,14 +115,12 @@ private:
Frame* closure;
Frame* body;
// Searches the start frame and all sub-frame's closures for a value corresponding
// to the id. Returns it when its found. Will fail with little grace if the value
// does not actually exist in any of the sub-frames.
// Both of these assume that it has already been verified that id is
// in the start frame.
static Val* GatherFromClosure(const Frame* start, const ID* id);
// Moves through the closure frames and associates val with id.
static void SetInClosure(Frame* start, const ID* id, Val* val);
bool ClosureContains(const ID* i) const;
bool CaptureContains(const ID* i) const;
std::vector<const char*> closure_elements;
};