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fix: extract_hugr not removing root node ports #1239

Merged
merged 2 commits into from
Jun 28, 2024
Merged

fix: extract_hugr not removing root node ports #1239

merged 2 commits into from
Jun 28, 2024

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aborgna-q
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Closes #1238

@aborgna-q aborgna-q requested a review from a team as a code owner June 28, 2024 10:03
@aborgna-q aborgna-q requested review from croyzor and doug-q June 28, 2024 10:03
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codecov bot commented Jun 28, 2024 •
edited

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.00%. Comparing base (80b8a85) to head (4635273).

Additional details and impacted files 
@@            Coverage Diff             @@
##             main    #1239      +/-   ##
==========================================
+ Coverage   86.97%   87.00%   +0.02%     
==========================================
  Files         100      100              
  Lines       18998    19000       +2     
  Branches    17013    17015       +2     
==========================================
+ Hits        16524    16530       +6     
+ Misses       1696     1693       -3     
+ Partials      778      777       -1
Flag Coverage Δ
rust 86.47% <100.00%> (+0.02%) ⬆️

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doug-q
doug-q reviewed Jun 28, 2024
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hugr-core/src/hugr/views/sibling.rs Outdated

let region: SiblingGraph = SiblingGraph::try_new(&hugr, def)?;
let region: DescendantsGraph = DescendantsGraph::try_new(&hugr, def)?;
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Why are you changing to a DescendentsGraph? I think his test is supposed to be testing functionality of SiblingGraph.

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The test hugr contains an inner DFG, so extracting just the SiblingGraph produced an invalid DFG node without children -.-

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I think a good solution is to change it to extract the dfg, and assert that the root of the new hugr has no ports

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I guess I should have moved this test to descendants.rs. I'll do that, and add a flat case here for SiblingGraph

hugr-core/src/hugr/views.rs
@@ -512,6 +512,7 @@ pub trait ExtractHugr: HugrView + Sized {
let old_root = hugr.root();
let new_root = hugr.insert_from_view(old_root, &self).new_root;
hugr.set_root(new_root);
hugr.set_num_ports(new_root, 0, 0);
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@doug-q doug-q Jun 28, 2024 •
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Shouldn't we add a test? make_module_hgr seems to provide a suitable case, the inner DFG (which has ports) should be extracted.

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That's what the descendant graph test is doing. Only SiblingGraph and DescendantGraph run this code on extraction.

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The test you changed:

  • extracts a node that has no ports anyway
  • does not assert that the extracted Hugr has no ports

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doug-q commented Jun 28, 2024

I think this is technically a breaking change? Or would anyone who was using extract_hugr on a node with ports have found themselves with an invalid Hugr?

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Yep, this doesn't change the behaviour except for the actual validation calls, that would have failed.

@aborgna-q aborgna-q requested a review from doug-q June 28, 2024 10:27
@aborgna-q aborgna-q enabled auto-merge June 28, 2024 10:53
@aborgna-q aborgna-q added this pull request to the merge queue Jun 28, 2024
Merged via the queue into main with commit 4c6c8cd Jun 28, 2024
38 checks passed
@aborgna-q aborgna-q deleted the ab/fix-extract-hugr branch June 28, 2024 10:57
@hugrbot hugrbot mentioned this pull request Jun 28, 2024
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github-merge-queue bot pushed a commit that referenced this pull request Jul 1, 2024
@hugrbot @doug-q
chore: release (#1240)
7dadadf 
## 🤖 New release
* `hugr`: 0.5.1 -> 0.6.0
* `hugr-core`: 0.2.0 -> 0.3.0
* `hugr-passes`: 0.2.0 -> 0.3.0
* `hugr-cli`: 0.1.1 -> 0.1.2

<details><summary><i><b>Changelog</b></i></summary><p>

## `hugr`
<blockquote>

## 0.6.0 (2024-06-28)

### Bug Fixes

- SimpleReplacement panic on multiports
([#1191](#1191))
- Add some validation for const nodes
([#1222](#1222))
- Cfg not validating entry/exit types
([#1229](#1229))
- `extract_hugr` not removing root node ports
([#1239](#1239))

### Documentation

- Fix documentation of `ValidationError::ConstTypeError`
([#1227](#1227))

### Features

- CircuitBuilder::add_constant
([#1168](#1168))
- [**breaking**] Make the rewrite errors more useful
([#1174](#1174))
- [**breaking**] Validate Extensions using hierarchy, ignore
input_extensions, RIP inference
([#1142](#1142))
- [**breaking**] Infer extension deltas for Case, Cfg, Conditional,
DataflowBlock, Dfg, TailLoop
([#1195](#1195))
- Helper functions for requesting inference, use with builder in tests
([#1219](#1219))

### Refactor

- [**breaking**] FunctionBuilder takes impl Into<PolyFuncType>
([#1220](#1220))
- [**breaking**] Remove NodeType and input_extensions
([#1183](#1183))
</blockquote>

## `hugr-core`
<blockquote>

## 0.3.0 (2024-06-28)

### Bug Fixes

- SimpleReplacement panic on multiports
([#1191](#1191))
- Add some validation for const nodes
([#1222](#1222))
- Cfg not validating entry/exit types
([#1229](#1229))
- `extract_hugr` not removing root node ports
([#1239](#1239))

### Documentation

- Fix documentation of `ValidationError::ConstTypeError`
([#1227](#1227))

### Features

- CircuitBuilder::add_constant
([#1168](#1168))
- [**breaking**] Make the rewrite errors more useful
([#1174](#1174))
- [**breaking**] Validate Extensions using hierarchy, ignore
input_extensions, RIP inference
([#1142](#1142))
- [**breaking**] Infer extension deltas for Case, Cfg, Conditional,
DataflowBlock, Dfg, TailLoop
([#1195](#1195))
- Helper functions for requesting inference, use with builder in tests
([#1219](#1219))

### Refactor

- [**breaking**] Remove NodeType and input_extensions
([#1183](#1183))
- [**breaking**] FunctionBuilder takes impl Into<PolyFuncType>
([#1220](#1220))
</blockquote>

## `hugr-passes`
<blockquote>

## 0.3.0 (2024-06-28)

### Features

- [**breaking**] Validate Extensions using hierarchy, ignore
input_extensions, RIP inference
([#1142](#1142))
- Helper functions for requesting inference, use with builder in tests
([#1219](#1219))

</blockquote>

## `hugr-cli`
<blockquote>

## 0.1.1 (2024-06-07)

### Features

- Reexport `clap::Parser` and `clap_verbosity_flag::Level` from hugr_cli
([#1146](#1146))

### Refactor

- Move binary to hugr-cli
([#1134](#1134))
</blockquote>


</p></details>

---
This PR was generated with
[release-plz](https://github.com/MarcoIeni/release-plz/).

---------

Co-authored-by: Douglas Wilson <douglas.wilson@quantinuum.com>
@hugrbot hugrbot mentioned this pull request Jul 1, 2024
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@doug-q doug-q doug-q approved these changes

@croyzor croyzor Awaiting requested review from croyzor croyzor is a code owner automatically assigned from CQCL/hugrverse

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HugrView::extract_hugr produces invalid hugrs
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@aborgna-q @doug-q