[FE] Move diagnostic parameter renderers to common module

2021-09-09 10:26:00 +03:00
parent c32aecb7ae
commit 0260bf8767
11 changed files with 85 additions and 84 deletions
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.diagnostics.rendering
+
+import com.intellij.openapi.util.text.StringUtil
+import org.jetbrains.kotlin.types.Variance
+import java.io.PrintWriter
+import java.io.StringWriter
+
+object CommonRenderers {
+    @JvmField
+    val EMPTY = Renderer<Any> { "" }
+
+    @JvmField
+    val STRING = Renderer<String> { it }
+
+    @JvmField
+    val THROWABLE = Renderer<Throwable> {
+        val writer = StringWriter()
+        it.printStackTrace(PrintWriter(writer))
+        StringUtil.first(writer.toString(), 2048, true)
+    }
+
+    @JvmField
+    val RENDER_POSITION_VARIANCE = Renderer { variance: Variance ->
+        when (variance) {
+            Variance.INVARIANT -> "invariant"
+            Variance.IN_VARIANCE -> "in"
+            Variance.OUT_VARIANCE -> "out"
+        }
+    }
+
+    @JvmStatic
+    fun <T> commaSeparated(itemRenderer: DiagnosticParameterRenderer<T>) = ContextDependentRenderer<Collection<T>> { collection, context ->
+        buildString {
+            val iterator = collection.iterator()
+            while (iterator.hasNext()) {
+                val next = iterator.next()
+                append(itemRenderer.render(next, context))
+                if (iterator.hasNext()) {
+                    append(", ")
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.diagnostics.rendering
+
+import org.jetbrains.kotlin.config.LanguageFeature
+import org.jetbrains.kotlin.config.LanguageVersionSettings
+
+class LanguageFeatureMessageRenderer @JvmOverloads constructor(
+    private val type: Type,
+    private val useHtml: Boolean = false
+) : DiagnosticParameterRenderer<Pair<LanguageFeature, LanguageVersionSettings>> {
+
+    enum class Type {
+        UNSUPPORTED,
+        WARNING,
+        ERROR
+    }
+
+    override fun render(obj: Pair<LanguageFeature, LanguageVersionSettings>, renderingContext: RenderingContext): String {
+        val (feature, settings) = obj
+        val since = feature.sinceVersion
+
+        val sb = StringBuilder()
+        sb.append("The feature \"").append(feature.presentableName).append("\" is ")
+
+        when (type) {
+            Type.UNSUPPORTED ->
+                when {
+                    since == null ->
+                        sb.append("experimental and should be enabled explicitly")
+                    since > settings.languageVersion ->
+                        sb.append("only available since language version ").append(since.versionString)
+                    feature.sinceApiVersion > settings.apiVersion ->
+                        sb.append("only available since API version ").append(feature.sinceApiVersion.versionString)
+                    else ->
+                        sb.append("disabled")
+                }
+
+            Type.WARNING -> sb.append("experimental")
+            Type.ERROR -> sb.append("experimental and disabled")
+        }
+
+        val hintUrl = feature.hintUrl
+        if (hintUrl != null) {
+            if (useHtml) {
+                sb.append(" (").append("see more <a href=\"").append(hintUrl).append("\">here</a>)")
+            } else {
+                sb.append(" (see: ").append(hintUrl).append(")")
+            }
+        }
+
+        return sb.toString()
+    }
+}