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Fix/ error msg missing .stripMargin #4

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Merged
stivens merged 1 commit into from
Oct 2, 2026
Merged

Fix/ error msg missing .stripMargin #4

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12 changes: 7 additions & 5 deletions src/main/scala/io/github/stivens/CaseComplete/macros/CaseCompleteBuilder.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -196,7 +196,7 @@ object CaseCompleteBuilder {

val selector = field.asTerm.underlyingArgument
def abort: Nothing =
report.errorAndAbort(s"Illegal expression: ${selector.show}, expected a field selector, e.g. `_.foo`")
report.errorAndAbort(s"Illegal expression: ${selector.show(using Printer.TreeShortCode)}, expected a field selector, e.g. `_.foo`")

// The receiver must be the lambda's own parameter: accepting any Select would let `_.a.b`
// register the *source type's* field "b" and silently defeat the completeness check.
Expand Down Expand Up @@ -224,17 +224,19 @@ object CaseCompleteBuilder {

val missingFields = caseClassFields.diff(handledFields)

if missingFields.nonEmpty then report.errorAndAbort(s"""
|CaseComplete compilation failed: Missing handlers for ${missingFields.size} field(s) in class ${Type.show[SOURCE_TYPE]}.
if missingFields.nonEmpty then {
val sourceType = TypeRepr.of[SOURCE_TYPE].show(using Printer.TypeReprShortCode)
report.errorAndAbort(s"""CaseComplete compilation failed: Missing handlers for ${missingFields.size} field(s) in class $sourceType.
|
|Missing handlers for fields: ${missingFields.mkString(", ")}
|
|To fix this, add handlers for the missing fields.
|Example:
| CaseCompleteBuilder[${Type.show[SOURCE_TYPE]}, ?]
| CaseComplete.build[$sourceType, ?]
| .using(_.${missingFields.head})(value => /* your handler logic */)
| // ... other handlers
| .compile""")
| .compile""".stripMargin)
}

val fieldOrder = caseClassFields ++ handledFields.diff(caseClassFields)

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