Add no links warning setting to scaladoc

scaladoc-testcases/src/tests/noLinkWarnings.scala

@@ -0,0 +1,14 @@
+package tests
+package noLinkWarnings
+
+/**
+ * [[doesnt.exist]]
+ *
+ */
+class NoLinkWarnings
+
+
+/**
+ * [[NoLinkWarnings]]
+ */
+class Exists

scaladoc/src/dotty/tools/scaladoc/Scaladoc.scala

@@ -52,6 +52,7 @@ object Scaladoc:
     documentSyntheticTypes: Boolean = false,
     snippetCompiler: List[String] = Nil,
     snippetCompilerDebug: Boolean = false,
+    noLinkWarnings: Boolean = false,
     versionsDictionaryUrl: Option[String] = None
   )
 
@@ -196,6 +197,7 @@ object Scaladoc:
         docCanonicalBaseUrl.get,
         YdocumentSyntheticTypes.get,
         snippetCompiler.get,
+        noLinkWarnings.get,
         snippetCompilerDebug.get,
         versionsDictionaryUrl.nonDefault
       )

scaladoc/src/dotty/tools/scaladoc/ScaladocSettings.scala

@@ -93,6 +93,12 @@ class ScaladocSettings extends SettingGroup with AllScalaSettings:
     "./docs"
   )
 
+  val noLinkWarnings: Setting[Boolean] = BooleanSetting(
+    "-no-link-warnings",
+    "Avoid warnings for ambiguous and incorrect links ONLY in members look up. Doesn't affect incorrect links of assets etc.",
+    false
+  )
+
   val versionsDictionaryUrl: Setting[String] = StringSetting(
     "-versions-dictionary-url",
     "versions dictionary url",

scaladoc/src/dotty/tools/scaladoc/tasty/comments/Comments.scala

@@ -109,12 +109,10 @@ abstract class MarkupConversion[T](val repr: Repr)(using dctx: DocContext) {
           case None =>
             val txt = s"No DRI found for query"
             val msg = s"$txt: $queryStr"
-            // TODO change to the commented-out version when we'll get rid of the warnings in stdlib
-            // report.warning(
-            //   msg,
-            //   owner.pos.get.asInstanceOf[dotty.tools.dotc.util.SrcPos],
-            // )
-            report.inform(msg)
+
+            if (!summon[DocContext].args.noLinkWarnings) then
+              report.warning(msg, owner.pos.get.asInstanceOf[dotty.tools.dotc.util.SrcPos])
+
             DocLink.UnresolvedDRI(queryStr, txt)
 
   private val SchemeUri = """[a-z]+:.*""".r

scaladoc/src/dotty/tools/scaladoc/tasty/comments/MemberLookup.scala

@@ -86,9 +86,9 @@ trait MemberLookup {
       res
     catch
       case e: Exception =>
-        // TODO (https://github.com/lampepfl/scala3doc/issues/238): proper reporting
-        val msg = s"Unable to find a link for ${query} ${ownerOpt.fold("")(o => "in " + o.name)}"
-        report.warn(msg, e)
+        if (!summon[DocContext].args.noLinkWarnings) then
+          val msg = s"Unable to find a link for ${query} ${ownerOpt.fold("")(o => "in " + o.name)}"
+          report.warn(msg, e)
         None
 
   private def hackMembersOf(using Quotes)(rsym: reflect.Symbol) = {

scaladoc/test/dotty/tools/scaladoc/no-link-warnings/LinkWarningTest.scala

@@ -0,0 +1,19 @@
+package dotty.tools.scaladoc
+package noLinkWarnings
+
+import org.junit.Assert.assertEquals
+
+class LinkWarningsTest extends ScaladocTest("noLinkWarnings"):
+
+  override def args = Scaladoc.Args(
+    name = "test",
+    tastyFiles = tastyFiles(name),
+    output = getTempDir().getRoot,
+    projectVersion = Some("1.0")
+  )
+
+  override def runTest = afterRendering {
+    val diagnostics = summon[DocContext].compilerContext.reportedDiagnostics
+    assertEquals("There should be exaclyt one warning", 1, diagnostics.warningMsgs.size)
+    assertNoErrors(diagnostics)
+  }

scaladoc/test/dotty/tools/scaladoc/no-link-warnings/NoLinkWarningsTest.scala

@@ -0,0 +1,18 @@
+package dotty.tools.scaladoc
+package noLinkWarnings
+
+class NoLinkWarningsTest extends ScaladocTest("noLinkWarnings"):
+
+  override def args = Scaladoc.Args(
+    name = "test",
+    tastyFiles = tastyFiles(name),
+    output = getTempDir().getRoot,
+    projectVersion = Some("1.0"),
+    noLinkWarnings = true
+  )
+
+  override def runTest = afterRendering {
+    val diagnostics = summon[DocContext].compilerContext.reportedDiagnostics
+    assertNoWarning(diagnostics)
+    assertNoErrors(diagnostics)
+  }