Add js module for Rust <-> JavaScript interop

Author: artemmukhin

build.gradle.kts

@@ -171,7 +171,8 @@ project(":plugin") {
             project(":intellij-toml"),
             "IntelliLang",
             graziePlugin,
-            psiViewerPlugin
+            psiViewerPlugin,
+            "JavaScriptLanguage"
         )
         if (baseIDE == "idea") {
             plugins += listOf(
@@ -194,6 +195,7 @@ project(":plugin") {
         implementation(project(":intelliLang"))
         implementation(project(":duplicates"))
         implementation(project(":grazie"))
+        implementation(project(":js"))
     }
 
     tasks {
@@ -314,6 +316,7 @@ project(":idea") {
 project(":clion") {
     intellij {
         version = clionVersion
+        setPlugins("JavaScriptLanguage")
     }
     dependencies {
         implementation(project(":"))
@@ -407,6 +410,19 @@ project(":grazie") {
     }
 }
 
+project(":js") {
+    intellij {
+        version = ideaVersion
+        setPlugins("JavaScriptLanguage")
+    }
+    dependencies {
+        implementation(project(":"))
+        implementation(project(":common"))
+        testImplementation(project(":", "testOutput"))
+        testImplementation(project(":common", "testOutput"))
+    }
+}
+
 project(":intellij-toml") {
     version = "0.2.$patchVersion.${prop("buildNumber")}$versionSuffix"
 

js/src/main/kotlin/org/rust/js/MyReferenceContributor.kt

@@ -0,0 +1,26 @@
+/*
+ * Use of this source code is governed by the MIT license that can be
+ * found in the LICENSE file.
+ */
+
+package org.rust.js
+
+import com.intellij.patterns.PlatformPatterns
+import com.intellij.psi.*
+import com.intellij.util.ProcessingContext
+import org.rust.lang.core.psi.RsElementTypes
+
+class MyReferenceContributor : PsiReferenceContributor() {
+    override fun registerReferenceProviders(registrar: PsiReferenceRegistrar) {
+        registrar.registerReferenceProvider(
+            PlatformPatterns.psiElement(RsElementTypes.IDENTIFIER),
+            MyReferenceProvider()
+        )
+    }
+}
+
+class MyReferenceProvider : PsiReferenceProvider() {
+    override fun getReferencesByElement(element: PsiElement, context: ProcessingContext): Array<PsiReference> {
+        return emptyArray()
+    }
+}

js/src/main/resources/META-INF/js-only.xml

@@ -0,0 +1,9 @@
+<idea-plugin>
+    <extensions defaultExtensionNs="com.intellij">
+        <psi.referenceContributor language="JSON" implementation="org.rust.js.MyReferenceContributor"/>
+    </extensions>
+</idea-plugin>
+
+
+
+

js/src/test/kotlin/org/rust/js/MyReferenceContributorTest.kt

@@ -0,0 +1,9 @@
+/*
+ * Use of this source code is governed by the MIT license that can be
+ * found in the LICENSE file.
+ */
+
+package org.rust.js
+
+class MyReferenceContributorTest {
+}

js/src/test/resources/META-INF/plugin.xml

@@ -0,0 +1,5 @@
+<idea-plugin xmlns:xi="http://www.w3.org/2001/XInclude" allow-bundled-update="true">
+    <id>org.rust.js</id>
+    <xi:include href="/META-INF/rust-core.xml" xpointer="xpointer(/idea-plugin/*)"/>
+    <depends optional="true" config-file="js-only.xml">JavaScript</depends>
+</idea-plugin>

plugin/src/main/resources/META-INF/plugin.xml

@@ -27,6 +27,7 @@
     <depends optional="true" config-file="duplicates-only.xml">com.intellij.modules.duplicatesDetector</depends>
     <depends optional="true" config-file="coverage-only.xml">com.intellij.modules.coverage</depends>
     <depends optional="true" config-file="grazie-only.xml">tanvd.grazi</depends>
+    <depends optional="true" config-file="js-only.xml">JavaScript</depends>
 
     <extensions defaultExtensionNs="com.intellij">
         <!-- although Rust module type is only created by IDEA, we need it in other IDEs as well

settings.gradle.kts

@@ -12,5 +12,6 @@ include(
     "intelliLang",
     "duplicates",
     "grazie",
+    "js",
     "intellij-toml"
 )