[R-Forge #2110] Add . and .. symbol prefixes and inherits=FALSE for strict scope
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Assessment
- Difficulty
- 5/5
- Estimated time
- Over a week
- Newbie friendliness
- 25/100
Research direction
The issue names no files, tests, or entry points, so first map the data.table scoping and sub-join implementation before proposing a change. Review how j resolves column names and calling-scope variables, then define tests covering inherits=FALSE and the proposed . and .. prefixes; done means those strict-scope and sub-join cases behave as specified.
Written by the indexing model from the issue text.
Description
Submitted by: Matt Dowle; Assigned to: Nobody; R-Forge link
inherits=FALSE would allow user to specify that j should use column names only, and if column name doesn't exist that should be error rather than possibly finding a match in calling scope.
..() is for the sub-join examples where the join goes in j and you want to refer to the columns in i not .SD. Something like that.
- Dominant language
- R
- Stars
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- Avg merge
- 14h 4m
- Merged PRs (30d)
- 4
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