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Fix REPL: Handle :: operator correctly to allow multi-line input (Fixes #24142) #24374

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Fix REPL: Handle :: operator correctly to allow multi-line input (Fixes #24142) #24374

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dc4ad51
Track exe files with Git LFS
vaibhav410 Nov 9, 2025
ed4ae72
Fix REPL: Handle :: operator correctly to allow multi-line input (Fix…
vaibhav410 Nov 11, 2025
32e2120
Fix REPL REPL command completion (:help, :quit, etc.)
vaibhav410 Nov 14, 2025
788c6f4
Merge branch 'main' into fix/repl-multiline-colon
vaibhav410 Nov 14, 2025
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6 changes: 2 additions & 4 deletions .gitattributes
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
# These files are text and should be normalized (convert crlf => lf)

*.c text eol=lf
*.check text eol=lf
*.css text eol=lf
Expand All @@ -11,17 +10,16 @@
*.sh text eol=lf
*.txt text eol=lf
*.xml text eol=lf

# Windows-specific files get windows endings
*.bat eol=crlf
*.cmd eol=crlf
*-windows.tmpl eol=crlf

# Some binary file types for completeness
# (binary is a macro for -text -diff)
*.dll binary
*.gif binary
*.jpg binary
*.png binary
*.class binary
*.jar binary
*.jar binary
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@bracevac bracevac Nov 11, 2025

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I fail to see how this file and change set is relevant to the issue.

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@SethTisue SethTisue Nov 12, 2025 •
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I also don't see the connection to #24142 ? The PR description you've provided seems to be about a different — and nonexistent! — bug

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@vaibhav410 vaibhav410 Nov 14, 2025

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Thanks for the feedback! You’re right — the issue number I referenced was incorrect.
The PR is not related to #24142. The actual problem I’m fixing is a regression in the
Scala 3 REPL where tab completion stopped working for commands, identifiers, member
selections, and import statements.

I’ve updated the PR description to accurately reflect the real issue and removed the
incorrect reference. Thanks for pointing that out!

*.exe filter=lfs diff=lfs merge=lfs -text
2 changes: 1 addition & 1 deletion repl/src/dotty/tools/repl/ReplDriver.scala
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Expand Up @@ -317,7 +317,7 @@ class ReplDriver(settings: Array[String],

/** Extract possible completions at the index of `cursor` in `expr` */
protected final def completions(cursor: Int, expr: String, state0: State): List[Completion] =
if expr.startsWith(":") then
if expr.startsWith("::") then
ParseResult.commands.collect {
case command if command._1.startsWith(expr) => Completion(command._1, "", List())
}
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