[Gradle, JS] Add isMpp property

#KT-38592 fixed

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/kotlinTargets.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 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.gradle.plugin.mpp
@@ -180,8 +180,7 @@ abstract class AbstractKotlinTarget(
         return result
     }
 
-    // TODO[Ilya Goncharov] fix internal on public when we remove legacy js
+    internal open fun createUsageContexts(
-    internal fun createUsageContexts(
         producingCompilation: KotlinCompilation<*>
     ): Set<DefaultKotlinUsageContext> {
         // Here, the Java Usage values are used intentionally as Gradle needs this for

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsTarget.kt

@@ -80,6 +80,16 @@ constructor(
         }
     }
 
+    override fun createUsageContexts(producingCompilation: KotlinCompilation<*>): Set<DefaultKotlinUsageContext> {
+        return super.createUsageContexts(producingCompilation) +
+                DefaultKotlinUsageContext(
+                    compilation = compilations.getByName(KotlinCompilation.MAIN_COMPILATION_NAME),
+                    usage = project.usageByName("java-api-jars"),
+                    dependencyConfigurationName = apiElementsConfigurationName,
+                    overrideConfigurationArtifacts = emptySet()
+                )
+    }
+
     override fun createKotlinVariant(
         componentName: String,
         compilation: KotlinCompilation<*>,
@@ -99,6 +109,10 @@ constructor(
             .get()
 
     var irTarget: KotlinJsIrTarget? = null
+        internal set
+
+    open var isMpp: Boolean? = null
+        internal set
 
     val testTaskName get() = testRuns.getByName(KotlinTargetWithTests.DEFAULT_TEST_RUN_NAME).testTaskName
     val testTask: TaskProvider<KotlinTestReport>

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/KotlinJsTargetPreset.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 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.
  */
 
@@ -25,6 +25,9 @@ open class KotlinJsTargetPreset(
     var irPreset: KotlinJsIrTargetPreset? = null
         internal set
 
+    open val isMpp: Boolean
+        get() = true
+
     override val platformType: KotlinPlatformType
         get() = KotlinPlatformType.js
 
@@ -40,6 +43,7 @@ open class KotlinJsTargetPreset(
                     KotlinJsCompilerType.IR.lowerName
                 )
             )
+            this.isMpp = this@KotlinJsTargetPreset.isMpp
 
             project.whenEvaluated {
                 if (!isBrowserConfigured && !isNodejsConfigured) {
@@ -88,6 +92,8 @@ class KotlinJsSingleTargetPreset(
     project,
     kotlinPluginVersion
 ) {
+    override val isMpp: Boolean
+        get() = false
 
     override fun useDisambiguitionClassifierAsSourcesetNamePreffix() = false
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTarget.kt

@@ -36,6 +36,9 @@ constructor(
     override lateinit var testRuns: NamedDomainObjectContainer<KotlinJsReportAggregatingTestRun>
         internal set
 
+    open var isMpp: Boolean? = null
+        internal set
+
     override var moduleName: String? = null
         set(value) {
             check(!isBrowserConfigured && !isNodejsConfigured) {

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/ir/KotlinJsIrTargetPreset.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 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.
  */
 
@@ -21,11 +21,15 @@ open class KotlinJsIrTargetPreset(
 ) {
     internal var mixedMode: Boolean? = null
 
+    open val isMpp: Boolean
+        get() = true
+
     override val platformType: KotlinPlatformType
         get() = KotlinPlatformType.js
 
     override fun instantiateTarget(name: String): KotlinJsIrTarget {
         return project.objects.newInstance(KotlinJsIrTarget::class.java, project, platformType, mixedMode).apply {
+            this.isMpp = this@KotlinJsIrTargetPreset.isMpp
             if (!mixedMode) {
                 project.whenEvaluated {
                     if (!isBrowserConfigured && !isNodejsConfigured) {
@@ -74,6 +78,9 @@ class KotlinJsIrSingleTargetPreset(
     project,
     kotlinPluginVersion
 ) {
+    override val isMpp: Boolean
+        get() = false
+
     // In a Kotlin/JS single-platform project, we don't need any disambiguation suffixes or prefixes in the names:
     override fun provideTargetDisambiguationClassifier(target: KotlinOnlyTarget<KotlinJsIrCompilation>): String? {
         return if (mixedMode!!) {