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feat: Allow type aliases to reference other aliases #4353

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merged 10 commits into from
Feb 13, 2024
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@jfecher jfecher commented Feb 12, 2024

Description

Problem*

Resolves

Summary*

Allows type aliases to reference other aliases, using the dependency graph to error if there are ever cycles.

To prevent infinite recursion in the type checker, aliases now have their own Type::Alias node which is used
to set the inner aliased type to Type::Error in the case of a cycle to break the cycle.

Additional Context

Example error:

error: Dependency cycle found
  ┌─ /home/user/Code/Noir/noir/short/src/main.nr:2:1
  │
2 │ type B = A;
  │ ---------- 'B' recursively depends on itself: B -> A -> B
  │

Documentation*

Check one:

  • No documentation needed.
  • Documentation included in this PR.
  • [Exceptional Case] Documentation to be submitted in a separate PR.

PR Checklist*

  • I have tested the changes locally.
  • I have formatted the changes with Prettier and/or cargo fmt on default settings.

@jfecher jfecher requested review from michaeljklein, TomAFrench and a team February 12, 2024 21:55
@github-actions github-actions bot added the documentation Improvements or additions to documentation label Feb 12, 2024
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github-actions bot commented Feb 12, 2024

@kevaundray kevaundray enabled auto-merge February 13, 2024 18:59
@kevaundray kevaundray added this pull request to the merge queue Feb 13, 2024
@github-merge-queue github-merge-queue bot removed this pull request from the merge queue due to failed status checks Feb 13, 2024
@jfecher jfecher added this pull request to the merge queue Feb 13, 2024
@github-merge-queue github-merge-queue bot removed this pull request from the merge queue due to failed status checks Feb 13, 2024
@kevaundray kevaundray enabled auto-merge February 13, 2024 19:47
@kevaundray kevaundray added this pull request to the merge queue Feb 13, 2024
Merged via the queue into master with commit c44ef14 Feb 13, 2024
37 checks passed
@kevaundray kevaundray deleted the jf/alias-graph branch February 13, 2024 20:04
github-merge-queue bot pushed a commit that referenced this pull request Mar 11, 2024
🤖 I have created a release *beep* *boop*
---


<details><summary>0.25.0</summary>

## [0.25.0](v0.24.0...v0.25.0)
(2024-03-11)


### ⚠ BREAKING CHANGES

* Internal as a macro
(AztecProtocol/aztec-packages#4898)
* reserve `unchecked` keyword
([#4432](#4432))
* Remove empty value from bounded vec
([#4431](#4431))
* Ban Fields in for loop indices and bitwise ops
([#4376](#4376))
* bump msrv to 1.73.0
([#4406](#4406))
* **ci:** Bump MSRV to 1.72.1 and enforce that ACVM can be published
using updated lockfile
([#4385](#4385))
* Restrict bit sizes
([#4235](#4235))
* move noir out of yarn-project
(AztecProtocol/aztec-packages#4479)
* note type ids
(AztecProtocol/aztec-packages#4500)

### Features

* Add eddsa_poseidon_to_pub function to stdlib with test + docs
([#4473](#4473))
([00d2c32](00d2c32))
* Add HashMap to the stdlib
([#4242](#4242))
([650ffc5](650ffc5))
* Add option to set max memory for bb.js
([#4227](#4227))
([8a6b131](8a6b131))
* Add overflow and underflow checks for unsigned integers in brillig
([#4445](#4445))
([21fc4b8](21fc4b8))
* Add poseidon2 opcode implementation for acvm/brillig, and Noir
([#4398](#4398))
([10e8292](10e8292))
* Added cast opcode and cast calldata
(AztecProtocol/aztec-packages#4423)
([78ef013](78ef013))
* Allow type aliases to reference other aliases
([#4353](#4353))
([c44ef14](c44ef14))
* Backpropagate constants in ACIR during optimization
([#3926](#3926))
([aad0da0](aad0da0))
* **ci:** Use wasm-opt when compiling wasm packages
([#4334](#4334))
([e382921](e382921))
* DAP Preflight and debugger compilation options
([#4185](#4185))
([e0ad0b2](e0ad0b2))
* Expose separate functions to compile programs vs contracts in
`noir_wasm` ([#4413](#4413))
([7cd5fdb](7cd5fdb))
* Internal as a macro
(AztecProtocol/aztec-packages#4898)
([5f57ebb](5f57ebb))
* Note type ids
(AztecProtocol/aztec-packages#4500)
([78ef013](78ef013))
* Restrict bit sizes
([#4235](#4235))
([1048f81](1048f81))
* Run tests in parallel in `nargo test`
([#4484](#4484))
([761734e](761734e))
* Skip redundant range checks in brillig
([#4460](#4460))
([cb4c1c5](cb4c1c5))
* Sync from aztec-packages
([#4483](#4483))
([fe8f277](fe8f277))
* Track stack frames and their variables in the debugger
([#4188](#4188))
([ae1a9d9](ae1a9d9))
* TypeVariableKind for just Integers
([#4118](#4118))
([c956be8](c956be8))
* Update error message when trying to load workspace as dependency
([#4393](#4393))
([d2585e7](d2585e7))


### Bug Fixes

* **acir:** Array dynamic flatten
([#4351](#4351))
([b2aaeab](b2aaeab))
* **acir:** Use types on dynamic arrays
([#4364](#4364))
([ba2c541](ba2c541))
* Add `follow_bindings` to follow `Type::Alias` links
([#4521](#4521))
([b94adb9](b94adb9))
* Add handling to `noir_wasm` for projects without dependencies
([#4344](#4344))
([4982251](4982251))
* Allow type aliases in main
([#4505](#4505))
([8a5359c](8a5359c))
* Ban Fields in for loop indices and bitwise ops
([#4376](#4376))
([601fd9a](601fd9a))
* Brillig range check with consistent bit size
([#4357](#4357))
([ea47d4a](ea47d4a))
* Build noir_codegen when publishing
([#4448](#4448))
([cb1ceee](cb1ceee))
* Consistent bit size for truncate
([#4370](#4370))
([dcd7a1e](dcd7a1e))
* Correct formatting for databus visibility types
([#4423](#4423))
([cd796de](cd796de))
* Correct invalid brillig codegen for `EmbeddedCurvePoint.add`
([#4382](#4382))
([5051ec4](5051ec4))
* **docs:** Update install versions
([#4396](#4396))
([b283637](b283637))
* **docs:** Update noirjs_app for 0.23
([#4378](#4378))
([f77f702](f77f702))
* Enforce matching types of binary ops in SSA
([#4391](#4391))
([70866ae](70866ae))
* Fix brillig slowdown when assigning arrays in loops
([#4472](#4472))
([2a53545](2a53545))
* **flake:** Stop flake.nix removing ignored-tests.txt
([#4455](#4455))
([ebaf05a](ebaf05a))
* Force src impl for == on slices
([#4507](#4507))
([1691274](1691274))
* Handling of gh deps in noir_wasm
([#4499](#4499))
([1d65370](1d65370))
* Iterative flattening pass
([#4492](#4492))
([33c1ef7](33c1ef7))
* Noir test incorrect reporting
(AztecProtocol/aztec-packages#4925)
([5f57ebb](5f57ebb))
* Only add `.nr` files to file manager
([#4380](#4380))
([8536c7c](8536c7c))
* Remove panic when generic array length is not resolvable
([#4408](#4408))
([00ab3db](00ab3db))
* Remove print from monomorphization pass
([#4417](#4417))
([27c66b3](27c66b3))
* **ssa:** Handle mergers of slices returned from calls
([#4496](#4496))
([f988d02](f988d02))
* Use correct type for numeric generics
([#4386](#4386))
([0a1d109](0a1d109))
* Variables from trait constraints being permanently bound over when
used within a trait impl
([#4450](#4450))
([ac60ef5](ac60ef5))


### Miscellaneous Chores

* Bump msrv to 1.73.0
([#4406](#4406))
([b5e5c30](b5e5c30))
* **ci:** Bump MSRV to 1.72.1 and enforce that ACVM can be published
using updated lockfile
([#4385](#4385))
([2fc95d2](2fc95d2))
* Move noir out of yarn-project
(AztecProtocol/aztec-packages#4479)
([78ef013](78ef013))
* Remove empty value from bounded vec
([#4431](#4431))
([b9384fb](b9384fb))
* Reserve `unchecked` keyword
([#4432](#4432))
([9544813](9544813))
</details>

<details><summary>0.41.0</summary>

## [0.41.0](v0.40.0...v0.41.0)
(2024-03-11)


### ⚠ BREAKING CHANGES

* Internal as a macro
(AztecProtocol/aztec-packages#4898)
* move noir out of yarn-project
(AztecProtocol/aztec-packages#4479)
* note type ids
(AztecProtocol/aztec-packages#4500)
* rename bigint_neg into bigint_sub
(AztecProtocol/aztec-packages#4420)
* Add expression width into acir
(AztecProtocol/aztec-packages#4014)
* init storage macro
(AztecProtocol/aztec-packages#4200)
* **acir:** Move `is_recursive` flag to be part of the circuit
definition (AztecProtocol/aztec-packages#4221)
* Sync commits from `aztec-packages`
([#4144](#4144))
* Breaking changes from aztec-packages
([#3955](#3955))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
* Remove unused methods on ACIR opcodes
([#3841](#3841))
* Remove partial backend feature
([#3805](#3805))

### Features

* Add bit size to const opcode
(AztecProtocol/aztec-packages#4385)
([158c8ce](158c8ce))
* Add expression width into acir
(AztecProtocol/aztec-packages#4014)
([158c8ce](158c8ce))
* Add instrumentation for tracking variables in debugging
([#4122](#4122))
([c58d691](c58d691))
* Add poseidon2 opcode implementation for acvm/brillig, and Noir
([#4398](#4398))
([10e8292](10e8292))
* Add support for overriding expression width
([#4117](#4117))
([c8026d5](c8026d5))
* Added cast opcode and cast calldata
(AztecProtocol/aztec-packages#4423)
([78ef013](78ef013))
* Allow brillig to read arrays directly from memory
(AztecProtocol/aztec-packages#4460)
([158c8ce](158c8ce))
* Allow nested arrays and vectors in Brillig foreign calls
(AztecProtocol/aztec-packages#4478)
([158c8ce](158c8ce))
* Allow variables and stack trace inspection in the debugger
([#4184](#4184))
([bf263fc](bf263fc))
* **avm:** Back in avm context with macro - refactor context
(AztecProtocol/aztec-packages#4438)
([158c8ce](158c8ce))
* **aztec-nr:** Initial work for aztec public vm macro
(AztecProtocol/aztec-packages#4400)
([158c8ce](158c8ce))
* Aztec-packages
([#3754](#3754))
([c043265](c043265))
* Backpropagate constants in ACIR during optimization
([#3926](#3926))
([aad0da0](aad0da0))
* Breaking changes from aztec-packages
([#3955](#3955))
([5be049e](5be049e))
* Evaluation of dynamic assert messages
([#4101](#4101))
([c284e01](c284e01))
* Init storage macro
(AztecProtocol/aztec-packages#4200)
([158c8ce](158c8ce))
* Internal as a macro
(AztecProtocol/aztec-packages#4898)
([5f57ebb](5f57ebb))
* Note type ids
(AztecProtocol/aztec-packages#4500)
([78ef013](78ef013))
* Remove range constraints from witnesses which are constrained to be
constants ([#3928](#3928))
([afe9c7a](afe9c7a))
* Remove replacement of boolean range opcodes with `AssertZero` opcodes
([#4107](#4107))
([dac0e87](dac0e87))
* Speed up transformation of debug messages
([#3815](#3815))
([2a8af1e](2a8af1e))
* Sync `aztec-packages`
([#4011](#4011))
([fee2452](fee2452))
* Sync commits from `aztec-packages`
([#4068](#4068))
([7a8f3a3](7a8f3a3))
* Sync commits from `aztec-packages`
([#4144](#4144))
([0205d3b](0205d3b))
* Sync from aztec-packages
([#4483](#4483))
([fe8f277](fe8f277))


### Bug Fixes

* Deserialize odd length hex literals
([#3747](#3747))
([4000fb2](4000fb2))
* Noir test incorrect reporting
(AztecProtocol/aztec-packages#4925)
([5f57ebb](5f57ebb))
* Remove panic from `init_log_level` in `acvm_js`
([#4195](#4195))
([2e26530](2e26530))
* Return error rather instead of panicking on invalid circuit
([#3976](#3976))
([67201bf](67201bf))


### Miscellaneous Chores

* **acir:** Move `is_recursive` flag to be part of the circuit
definition (AztecProtocol/aztec-packages#4221)
([158c8ce](158c8ce))
* Move noir out of yarn-project
(AztecProtocol/aztec-packages#4479)
([78ef013](78ef013))
* Remove partial backend feature
([#3805](#3805))
([0383100](0383100))
* Remove unused methods on ACIR opcodes
([#3841](#3841))
([9e5d0e8](9e5d0e8))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
([836f171](836f171))
* Rename bigint_neg into bigint_sub
(AztecProtocol/aztec-packages#4420)
([158c8ce](158c8ce))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: Savio <[email protected]>
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