tiltontec.cell.evaluate
<cgetclj/s
(<cget c)c-absorb-valueclj/s
c-awakenclj/smultimethod
c-getclj/s
(c-get c)The API for determing the value associated with a Cell. Ensures value is current, records any dependent, and notices if a standalone cell has never been observed.
The API for determing the value associated with a Cell. Ensures value is current, records any dependent, and notices if a standalone cell has never been observed.
c-quiesceclj/s
(c-quiesce c)c-value-assumeclj/s
(c-value-assume c new-value propagation-code)The Cell assumes a new value at awakening, on c-reset!, or after formula recalculation.
We record the new value, set the Cell state to :awake, make its pulse current, check to see if a formula cell can be optimized away, and then propagate to any dependent formula cells.
The Cell assumes a new value at awakening, on c-reset!, or after formula recalculation. We record the new value, set the Cell state to :awake, make its pulse current, check to see if a formula cell can be optimized away, and then propagate to any dependent formula cells.
c-value-changed?clj/s
(c-value-changed? c new-value old-value)calculate-and-linkclj/s
(calculate-and-link c)The name is accurate: we do no more than invoke the rule of a formula and return its value*, but along the way the links between dependencies and dependents get determined anew.
- Well, we also look to see if a synaptic cell has attached a propagaion code to a vector used to wrap the raw value, which we then unpack.
The name is accurate: we do no more than invoke the rule of a formula and return its value*, but along the way the links between dependencies and dependents get determined anew. * Well, we also look to see if a synaptic cell has attached a propagaion code to a vector used to wrap the raw value, which we then unpack.
calculate-and-setclj/s
(calculate-and-set c dbgid dbgdata)Calculate, link, record, and propagate.
Calculate, link, record, and propagate.
ensure-value-is-currentclj/s
(ensure-value-is-current c debug-id ensurer)The key to data integrity: recursively check the known dependency graph to decide if we are current, and if not kick off recalculation and propagation.
The key to data integrity: recursively check the known dependency graph to decide if we are current, and if not kick off recalculation and propagation.
ephemeral-resetclj/s
(ephemeral-reset rc)md-cell-flushclj/s
(md-cell-flush c)md-slot-cell-flushedclj/s
md-slot-value-storeclj/s
(md-slot-value-store me slot value)not-to-beclj/smultimethod
not-to-be-selfclj/s
(not-to-be-self me)optimize-away?!clj/s
(optimize-away?! c prior-value)Optimizes away cells who turn out not to depend on anyone, saving a lot of work at runtime. A caller/user will not bother establishing a link, and when we get to models cget will find a non-cell in a slot and Just Use It.
Optimizes away cells who turn out not to depend on anyone, saving a lot of work at runtime. A caller/user will not bother establishing a link, and when we get to models cget will find a non-cell in a slot and Just Use It.
propagateclj/s
(propagate c prior-value callers)A cell:
- notifies its callers of its change;
- calls any observer; and
- if ephemeral, silently reverts to nil.
A cell: - notifies its callers of its change; - calls any observer; and - if ephemeral, silently reverts to nil.
propagate-to-callersclj/s
(propagate-to-callers c callers)unchanged-testclj/smultimethod
Cells does not propagate when nothing changes. By default, the test is =, but cells can inject a different test, and when we get to models it will be possible for a slot to have associated with it a different test.
Cells does not propagate when nothing changes. By default, the test is =, but cells can inject a different test, and when we get to models it will be possible for a slot to have associated with it a different test.
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