Kotlin / Kotlin/dataframe

Extend API of rename

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enhancement
Dominant language
Kotlin
Stars
1.1k
Forks
83
Avg merge
4d 12h
Merged PRs (30d)
30

Description

Now it's powerful but unreliable for compiler plugin

df.rename { a and b }.into { "${it.name()}_abc" }

We could have a few common shortcuts that plugin would understand well:
https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.add_prefix.html

df.rename { a and b }.addSuffix("_abc")
df.rename { a and b }.addPrefix("abc_")

// Remove too?

df.rename { a and b }.removeSuffix("_abc")
df.rename { a and b }.removePrefix("abc_")

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the DataFrame rename API and the compiler-plugin handling for rename operations. Compare the proposed addPrefix, addSuffix, removePrefix, and removeSuffix behavior with the existing rename flow. Done means the selected shortcuts are defined clearly and work reliably for compiler-plugin-generated code.

Written by the indexing model from the issue text.

Assessment

Tech stack
kotlin
Domain
data
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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