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Prepare build for Scala 3.8.0 development #23626

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Merged
merged 4 commits into from
Jul 29, 2025
Merged

Prepare build for Scala 3.8.0 development #23626

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5b7b3ad
Set developed version to 3.8.0
WojciechMazur Jul 29, 2025
db80935
Set -source default to 3.8
WojciechMazur Jul 29, 2025
ebf67a6
Add -source:3.9 and -source:3.9-migrations setting options
WojciechMazur Jul 29, 2025
60ccb3c
Add new source object to library/src/scala/language
WojciechMazur Jul 29, 2025
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3 changes: 2 additions & 1 deletion compiler/src/dotty/tools/dotc/config/SourceVersion.scala
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Expand Up @@ -17,6 +17,7 @@ enum SourceVersion:
case `3.6-migration`, `3.6`
case `3.7-migration`, `3.7`
case `3.8-migration`, `3.8`
case `3.9-migration`, `3.9`
// Add 3.x-migration and 3.x here
// !!! Keep in sync with scala.runtime.stdlibPatches.language !!!
case `2.13`
Expand Down Expand Up @@ -49,7 +50,7 @@ enum SourceVersion:
object SourceVersion extends Property.Key[SourceVersion]:

/* The default source version used by the built compiler */
val defaultSourceVersion = `3.7`
val defaultSourceVersion = `3.8`

/* Illegal source versions that may not appear in the settings `-source:<...>` */
val illegalInSettings = List(`2.13`, `3.1-migration`, `never`)
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13 changes: 13 additions & 0 deletions library/src/scala/runtime/stdLibPatches/language.scala
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Expand Up @@ -364,6 +364,19 @@ object language:
@compileTimeOnly("`3.8` can only be used at compile time in import statements")
object `3.8`

/** Set source version to 3.9-migration.
*
* @see [[https://docs.scala-lang.org/scala3/guides/migration/compatibility-intro.html]]
*/
@compileTimeOnly("`3.9-migration` can only be used at compile time in import statements")
object `3.9-migration`

/** Set source version to 3.9
*
* @see [[https://docs.scala-lang.org/scala3/guides/migration/compatibility-intro.html]]
*/
@compileTimeOnly("`3.9` can only be used at compile time in import statements")
object `3.9`

// !!! Keep in sync with dotty.tools.dotc.config.SourceVersion !!!
// Also add tests in `tests/pos/source-import-3-x.scala` and `tests/pos/source-import-3-x-migration.scala`
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2 changes: 1 addition & 1 deletion project/Build.scala
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Expand Up @@ -63,7 +63,7 @@ object Build {
*
* Warning: Change of this variable might require updating `expectedTastyVersion`
*/
val developedVersion = "3.7.3"
val developedVersion = "3.8.0"

/** The version of the compiler including the RC prefix.
* Defined as common base before calculating environment specific suffixes in `dottyVersion`
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