RFC0020 implementation #688
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@georg-schwarz do you agree with the design so far? I had to introduce a new Valuetype |
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Do you see any major negative aspects of this design? |
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…ntermediate `TableRow`
…h table row expressions
…value is no longer readonly
- Remove the logic deriving column definitions with/without header - The columns property is the definitive source of truth - The header row is used to map sheet-column-names to sheet-column-indices
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libs/language-server/src/lib/ast/wrappers/typed-object/block-type-wrapper.ts
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Co-authored-by: Georg Schwarz <dev@georg-schwarz.com>
Co-authored-by: Georg Schwarz <dev@georg-schwarz.com>
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Pull request overview
This PR implements RFC0020, introducing a new syntax for table parsing in Jayvee. The implementation replaces the inline column definitions in TableInterpreter with a valuetype-based schema definition and a parsing transform that uses the new cellInColumn operator to access sheet cells by column name or index.
Changes:
- Replaced
columns: [...]array syntax withcolumns: ValueTypeandparseWith: Transformproperties inTableInterpreter - Introduced new
cellInColumnbinary operator andTableRowLiteralsyntax for transform expressions - Removed
skipLeadingWhitespaceandskipTrailingWhitespaceproperties fromTableInterpreter
Reviewed changes
Copilot reviewed 72 out of 72 changed files in this pull request and generated 6 comments.
Show a summary per file
| File | Description |
|---|---|
| expression.langium | Added TableRowLiteral grammar and cellInColumn operator |
| TableInterpreter.jv | Updated documentation and properties to use valuetype schema |
| GTFS*.jv files | Migrated all GTFS interpreters to new syntax with valuetypes and transforms |
| table-interpreter-executor.ts | Refactored to use transform-based parsing instead of direct column definitions |
| constraint-executor.ts | Updated to work with Map-based values instead of single values |
| table.ts | Changed TableRow from Record to Map, added constraint checking |
| value-type-definition-value-type.ts | Added new primitive value type for valuetype definitions |
| cell-in-column-operator-evaluator.ts | Implemented evaluator for new cellInColumn operator |
| Example files (cars.jv, electric-vehicles.jv, gtfs-rt.jv) | Updated to use new syntax |
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...ons/tabular/exec/test/assets/table-interpreter-executor/valid-without-header-without-trim.jv
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libs/language-server/src/stdlib/domain/mobility/GTFSFareRulesInterpreter.jv
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libs/language-server/src/lib/validation/checks/transform-body.ts
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libs/language-server/src/lib/validation/checks/block-type-specific/property-body.ts
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libs/language-server/src/lib/ast/expressions/evaluators/cell-in-column-operator-evaluator.ts
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georg-schwarz
approved these changes
Jan 15, 2026
Co-authored-by: Copilot
Co-authored-by: Copilot
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This PR implements RFC 0020 with a few caveats:
row["column"]torow cellInColumn "column"SheetRowvaluetype, I decided to useCollection<text>Other changes unrelated to the RFC:
skipLeadingWhitespaceandskipTrailingWhitespacehave been removed fromTableInterpreterbecause this can now be part of the parsing transform. We already have a replace operator.