Various features for example pipeline #31

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HEL merged 26 commits from feat/complete-example into main 2026-07-07 17:30:22 +02:00

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HEL commented 2026-07-07 17:30:12 +02:00

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This rather large PR regroups many small additions and fixes that were useful to demonstrate some strengths of the system and are generally interesting / useful

This includes, but is not limited to:

• import statements now introduce variables in the environment, with unknown types
• Column can now be used in type expression, e.g. Column[int]
• copy, info and sort_values methods on frames
• not operator and proper handling of unary operations in Midas and Python
• properly check parameter default values (ensure type matches annotation)
• correctly parse int literals as integers in Midas (previously, all numbers were parsed as floats)
• handle UnknownType more gracefully in some places
• handle scalar operations on frames and columns (e.g. df * 2.5 - 3.2)
• use formulae to compute the return type of some aggregation methods (e.g. mean = (Type + Type) / int)

This rather large PR regroups many small additions and fixes that were useful to demonstrate some strengths of the system and are generally interesting / useful This includes, but is not limited to: - import statements now introduce variables in the environment, with unknown types - `Column` can now be used in type expression, e.g. `Column[int]` - `copy`, `info` and `sort_values` methods on frames - `not` operator and proper handling of unary operations in Midas and Python - properly check parameter default values (ensure type matches annotation) - correctly parse int literals as integers in Midas (previously, all numbers were parsed as floats) - handle `UnknownType` more gracefully in some places - handle scalar operations on frames and columns (e.g. `df * 2.5 - 3.2`) - use formulae to compute the return type of some aggregation methods (e.g. `mean = (Type + Type) / int`)

HEL self-assigned this 2026-07-07 17:30:12 +02:00

HEL added 26 commits 2026-07-07 17:30:12 +02:00

feat: handle import statements ... 3de36e5bd5

import statements now introduce variables with unknown types to avoid "Unknown variable" warnings

fix(checker): handle application of column type 16c19cca75

fix: add __name__ to preamble 8bc35f7754

feat(checker): add copy and info methods a640b8b3dd

feat: handle not operator 164648e8df

fix(checker): properly check parameter defaults aab4641584

fix(checker): handle all unary ops in evaluator af6056a83f

fix(parser): parse int literals as integers ... 56987f6cff

avoid casting to float when the literal is an integer

fix(checker): handle setting unknown as column 4eb133ce17

fix(checker): report predicate argument errors 5e87ba2cd1

fix(gen): generate assertion definitions 9277bd2cd0

feat(checker): handle scalar ops on frames and columns 1098e33d07

fix(gen): only generate length assertion for non-scalar ops 5051e155c0

feat(checker): add unsupported parameter flag f48ebd49d1

feat(checker): add sort_values on frames and columns c6b8c0a145

docs: add docstrings to generator submodule ed07b01563

fix: make Frame/Column inherit from pandas classes c2f41eb392

tests: update with integer literals fe34c77e4c

tests: update with unsupported flag 5311307a6f

chore: add weather pipeline example 83eecd612e

chore: add comments to weather example 5958e3612b

feat(checker): add formula to compute aggregation type 48be2d454c

fix(cli): tweak highlight diagnostic tooltip f3dec414cc

fix(checker): compute aggregation of column groupby 25c11c3a53

docs: update docstring with new formula 40bda81c32

tests: update with new aggregate return types 094554cb72

HEL merged commit e855a09a6b into main 2026-07-07 17:30:22 +02:00

HEL deleted branch feat/complete-example 2026-07-07 17:30:22 +02:00

HEL referenced this issue from a commit 2026-07-07 17:30:22 +02:00

Merge pull request 'Various features for example pipeline' (#31) from feat/complete-example into main

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HEL (Louis Heredero)

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Reference: HEL/midas#31