--- Switch to new AST types ---

[wdanilo]

This task is automatically imported from the old Task Issue Board and it was originally created by Keziah Wesley.
Original issue is here.

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Switch to new enso-parser AST types in public APIs. Insert a call to a conversion function into all the old implementations. The conversion function will stringify the AST and reparse to old types; as we reimplement APIs based on the new types, we'll eliminate use of the conversion function.

Blockers:

#182970096 blocked
#182988419 blocked
#182973659 blocked
#182974161 blocked
#182974205 blocked

Comments:

Keziah Wesley reports a new STANDUP for yesterday (2022-11-23):

Progress: Working on "dual stack" frontend parsing. Mostly figuring out design issues today. It should be finished by 2022-11-29.

Next Day: Next day I will be working on the #182975925 task. Start implementing Rust-first parsing (with all APIs falling back to old-parser implementations initially). (Enso Bot - Nov 25, 2022)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2022-11-24):

Progress: Still working on old/new tree bijection. It should be finished by 2022-11-29.

Next Day: Next day I will be working on the #182975925 task. Fix a potential performance problem, then get back to setting up the frontend transition (Enso Bot - Nov 26, 2022)

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**Keziah Wesley** reports a new **STANDUP** for the last Friday (2022-11-25):

Progress: Still working on old/new tree bijection. Also implemented some fast widgets algorithms. It should be finished by 2022-11-29.

Next Day: Next day I will be working on the #182975925 task. Continue setting up incremental parser transition (Enso Bot - Nov 29, 2022)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2022-11-28):

Progress: Implementing incremental parser transition support. It should be finished by 2022-11-29.

Next Day: Next day I will be working on the #182975925 task. Continue implementation. (Enso Bot - Nov 30, 2022)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2022-11-29):

Progress: Implementing incremental parser transition support. Porting implementation of some APIs that would complicate the incremental-transition approach I've chosen, but that aren't used by graph editor directly. It should be finished by 2022-11-29.

Next Day: Next day I will be working on the #182975925 task. Continue implementation. (Enso Bot - Dec 1, 2022)

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**Keziah Wesley** reports a new **🔴 DELAY** for yesterday (2022-11-30):

Summary: There is 3 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: The scope has expanded a bit: I've found it will be simplest to port some minor APIs to the new types before dual-parser operation is introduced. (Enso Bot - Dec 2, 2022)

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**Keziah Wesley** reports a new **🔴 DELAY** for yesterday (2022-11-30):

Summary: There is 6 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: The scope has expanded a bit: I've found it will be simplest to port some minor APIs to the new types before dual-parser operation is introduced. [Fixing delay estimate--I didn't realize it counted weekdays] (Enso Bot - Dec 2, 2022)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2022-11-30):

Progress: Implementing incremental parser transition support. (End date is monday, fighting with the bot about it) It should be finished by 2022-12-08.

Next Day: Next day I will be working on the #182975925 task. Continue implementation. (Enso Bot - Dec 2, 2022)

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**Keziah Wesley** reports a new **STANDUP** for the last Friday (2022-12-02):

Progress: Implementing incremental parser transition support. It should be finished by 2022-12-08.

Next Day: Next day I will be working on the #182975925 task. Continue implementation. (Enso Bot - Dec 6, 2022)

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**Keziah Wesley** reports a new **🔴 DELAY** for today (2023-01-09):

Summary: There is 36 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: Scope expanded a bit to include replacing the old parser, and was interrupted by some more urgent features. (Enso Bot - Jan 10, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-09):

Progress: Worked on testing functionality for validate translation. It should be finished by 2023-01-13.

Next Day: Next day I will be working on the #182975925 task. Implementing AST translation: Work on replacing the macro-based Ast APIs with new Tree APIs. (Enso Bot - Jan 10, 2023)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2023-01-11):

Progress: Implementing translation for the non-macro AST shapes first because that will make continuous testing easier. It should be finished by 2023-01-13.

Next Day: Next day I will be working on the #182975925 task. Continue implementing the core AST shapes and increasing passing equivalence-tests. (Enso Bot - Jan 13, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-12):

Progress: Non-macro AST shapes mostly implemented. It should be finished by 2023-01-13.

Next Day: Next day I will be working on the #182975925 task. Probably finish non-macro shapes, start translating the macros. (Enso Bot - Jan 13, 2023)

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**Keziah Wesley** reports a new **STANDUP** for the last Friday (2023-01-13):

Progress: Translating more non-macro AST types. It should be finished by 2023-01-13.

Next Day: Next day I will be working on the #182975925 task. Implement remaining non-macro types. (Enso Bot - Jan 17, 2023)

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**Keziah Wesley** reports a new **🔴 DELAY** for today (2023-01-16):

Summary: There is 7 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: It's a big project. Initial estimate was optimistic. (Enso Bot - Jan 17, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-16):

Progress: Have most non-macro types implemented, and a lot of syntax is working. Ready to start porting macros. It should be finished by 2023-01-20.

Next Day: Next day I will be working on the #182975925 task. Start porting macro types. (Enso Bot - Jan 17, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-19):

Progress: Debugged a lexer problem. Working on porting the import macros. It should be finished by 2023-01-20.

Next Day: Next day I will be working on the #182975925 task. Finish import macros. (Enso Bot - Jan 20, 2023)

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**Keziah Wesley** reports a new **STANDUP** for the last Friday (2023-01-20):

Progress: Working on porting macro syntaxes. Encountered some minor prerequisites necessary before macro types can be replaced. It should be finished by 2023-01-20.

Next Day: Next day I will be working on the #182975925 task. Continue working on macros. (Enso Bot - Jan 24, 2023)

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**Keziah Wesley** reports a new **🔴 DELAY** for the last Friday (2023-01-20):

Summary: There is 7 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: My initial factoring into tasks was for a different transition plan. This approach will allow replacing the old parser sooner than the original plan, but I haven't broken down this approach into tasks. (Enso Bot - Jan 24, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-23):

Progress: Adding abstraction layer to the parser entry points / metadata API. This will enable incremental delivery and testing of the more complex API ports. It should be finished by 2023-01-27.

Next Day: Next day I will be working on the #182975925 task. Finish abstraction layer and deliver first part of transition. (Enso Bot - Jan 24, 2023)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2023-01-24):

Progress: Continued replacing the top-level API. Found that the incremental porting approach I was thinking
about yesterday would add too much work--there's just no way to test individual API ports until they're all done. It should be finished by 2023-01-27.

Next Day: Next day I will be working on the #182975925 task. Finish eliminating coupling between Scala parser and Ast, so I can freely modify the Ast type. (Enso Bot - Jan 26, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-25):

Progress: scala-parser is fully replaced (with implementations of translated variants, and stubs of variants that will be wrapped Trees). It should be finished by 2023-01-27.

Next Day: Next day I will be working on the #182975925 task. Embedding Tree types in Ast for its macro-based variants, and implementing APIs for them (mainly Crumbs and Node). (Enso Bot - Jan 26, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-26):

Progress: I've reached a point where I can test functionality in the IDE, without the old parser. The remaining work is straightforward trait implementation. It should be finished by 2023-01-27.

Next Day: Next day I will be working on the #182975925 task. Implementing Ast traits for Tree types. (Enso Bot - Jan 27, 2023)

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**Keziah Wesley** reports a new **🔴 DELAY** for the last Friday (2023-01-27):

Summary: There is 5 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: I have not been able to make the transition as incrementally as I hoped, so this issue has grown to include a lot of work I had planned to defer (#182988419, #182970096). (Enso Bot - Jan 31, 2023)

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**Keziah Wesley** reports a new **STANDUP** for the last Friday (2023-01-27):

Progress: Implementing generation of a SpanTree intermediate representation embedded in Ast. It should be finished by 2023-02-01.

Next Day: Next day I will be working on the #182975925 task. Continue using the new representation to implement the SpanTree / Crumbs APIs. (Enso Bot - Jan 31, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-01-30):

Progress: Working on representation of whitespace in translation. There are a lot of cases to handle, but this is an area that's highly testable. It should be finished by 2023-02-01.

Next Day: Next day I will be working on the #182975925 task. Continue using the new representation to implement the SpanTree / Crumbs APIs. (Enso Bot - Jan 31, 2023)

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**Keziah Wesley** reports a new **STANDUP** for yesterday (2023-01-31):

Progress: Implementing traits. Ran into an issue with invalid SpanTrees. It should be finished by 2023-02-01.

Next Day: Next day I will be working on the #182975925 task. Continue implementing traits. (Enso Bot - Feb 2, 2023)

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**Keziah Wesley** reports a new **🔴 DELAY** for today (2023-02-01):

Summary: There is 2 days delay in implementation of the --- Switch to new AST types --- (#182975925) task.
It will cause 0 days delay for the delivery of this weekly plan.

Delay Cause: SpanTrees are taking a little longer than I hoped. Still planning to finish this week. (Enso Bot - Feb 2, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-02-01):

Progress: Everything implemented is working. Several features still TODO but they're all small. It should be finished by 2023-02-03.

Next Day: Next day I will be working on the #182975925 task. Support DocComments; attach IDs to nodes. (Enso Bot - Feb 2, 2023)

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**Keziah Wesley** reports a new **STANDUP** for today (2023-02-02):

Progress: Several TODOs remaining before all test pass, but graph editor is usable with no obvious bugs. It should be finished by 2023-02-03.

Next Day: Next day I will be working on the #182975925 task. Get all tests passing; write some missing docs. (Enso Bot - Feb 2, 2023)

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[kazcw]

Transition completed in #4113