fix: handle assignments to dereferenced pointer values #1398
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This reverts commit 91b4586.
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Additional details and impacted files@@ Coverage Diff @@
## master #1398 +/- ##
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- Coverage 55.84% 55.84% -0.01%
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Files 431 431
Lines 65747 65782 +35
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+ Hits 36716 36734 +18
- Misses 26158 26172 +14
- Partials 2873 2876 +3
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deelawn
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Can you elaborate a second on these changes?
Were they not reproducing 1167 correctly?
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taking a look... |
| @@ -273,7 +273,35 @@ func (pv PointerValue) Assign2(alloc *Allocator, store Store, rlm *Realm, tv2 Ty | |||
| // Special case of DataByte into (base=*SliceValue).Data. | |||
| pv.TV.SetDataByte(tv2.GetUint8()) | |||
| return | |||
| } else if rlm != nil && pv.Base == nil && pv.Index == 0 { | |||
| // An index of zero indicates this is an assignment to a realm | |||
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An index of zero could mean it's the zero'th element of an array, or the zero'th element of a block,
or whatever the .Base type is. The Index doesn't say much but the .Base type says more but depends on what you mean by a realm object. Like a PackageValue?
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You're right that an index of zero can mean more than one thing depending on the context, but in this case the realm is not nil and the base is nil, so I think this means that a value is being assigned to a realm object. I'm not sure what the difference is between realm object and PackageValue; they might be synonymous -- the values that are persisted from one block to the next; variables that are declared in a realm and are not local to any function or method.
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ok at least the comment needs fixing, "A base of nil indicates"?
A base of nil indicates an assignment to an escaped object, or a new one that just hasn't been persisted yet.
An escaped object has no owner.
All persisted objects are realm objects.
Some are substructures (base == parent, ref==1), others are escaped.
All realms have an associated package value but not all packages are realms. Depends on the PkgPath name.
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Sidenote: This depends on https://github.com/gnolang/gno/pull/1305/files DeepCopy but DeepCopy is a misnomer. |
jaekwon
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I think this is the approach we should take: https://github.com/gnolang/gno/pull/1501/files generally speaking. |
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Closing in favor of #1501 |
Addresses #1326
This is still a WIP and I need to do a lot more testing with different cases and tweak it accordingly. Before I spend the time to do that, I'm requesting feedback as to whether or not this is the correct approach to fixing this issue. I tried fixing it in a few different places prior to this PR; this was the only place I was successful in doing so. Perhaps the reference value should be resolved and the base value set earlier; I'm not sure.
cc @jaekwon
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