Added LineMarkerProvider (#21)

* Added C3LineMarkerProvider

- added line marker provider to run main from editor

Author: FoxKiana

src/main/java/org/c3lang/intellij/C3LineMarkerProvider.kt

@@ -0,0 +1,58 @@
+package org.c3lang.intellij
+
+import com.intellij.codeInsight.daemon.LineMarkerInfo
+import com.intellij.codeInsight.daemon.LineMarkerProvider
+import com.intellij.execution.RunManager
+import com.intellij.execution.configurations.ConfigurationTypeUtil
+import com.intellij.execution.executors.DefaultRunExecutor
+import com.intellij.execution.runners.ExecutionEnvironmentBuilder
+import com.intellij.icons.AllIcons
+import com.intellij.openapi.editor.markup.GutterIconRenderer
+import com.intellij.openapi.project.Project
+import com.intellij.psi.PsiElement
+import org.c3lang.intellij.psi.C3FuncDefinition
+
+class C3LineMarkerProvider : LineMarkerProvider
+{
+    override fun getLineMarkerInfo(element: PsiElement): LineMarkerInfo<*>?
+    {
+        if (element !is C3FuncDefinition) return null
+
+        val type = element.funcDef.funcHeader.optionalType.type.text
+        val name = element.funcDef.fqName.name
+
+        if (name != "main") return null
+        if (type !in listOf("int", "void")) return null
+
+        return LineMarkerInfo(
+            element,
+            element.textRange,
+            AllIcons.Actions.Execute,
+            { "Run main" },
+            { _, elt -> createAndRunCustomConfig(elt.project) },
+            GutterIconRenderer.Alignment.RIGHT,
+            { "Click to open context menu" }
+        )
+    }
+
+    private fun createAndRunCustomConfig(project: Project)
+    {
+        val runManager = RunManager.getInstance(project)
+        val configType = ConfigurationTypeUtil.findConfigurationType(C3BuildRunConfigurationType::class.java)
+        val factory = configType.configurationFactories.first()
+        val uniqueName = "main"
+        val settings = runManager.createConfiguration(uniqueName, factory)
+        val config = settings.configuration as C3BuildRunConfiguration
+
+        config.workingDirectory = project.basePath
+        config.args = ""
+
+        runManager.addConfiguration(settings)
+        runManager.selectedConfiguration = settings
+
+        val executor = DefaultRunExecutor.getRunExecutorInstance()
+        val environment = ExecutionEnvironmentBuilder.create(executor, settings).build()
+
+        environment.runner.execute(environment)
+    }
+}

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

@@ -72,6 +72,9 @@
     <newProjectWizard.languageGenerator implementation="org.c3lang.intellij.wizard.C3NewProjectWizard"/>
     <newProjectWizard.languageGenerator implementation="org.c3lang.intellij.wizard.C3NewLibraryWizard"/>
 
+    <codeInsight.lineMarkerProvider language="C3"
+                                    implementationClass="org.c3lang.intellij.C3LineMarkerProvider" />
+
     <!--<gotoDeclarationHandler implementation="org.c3lang.intellij.actions.C3GotoDeclarationHandler"/>-->
 
     <lang.findUsagesProvider language="C3" implementationClass="org.c3lang.intellij.findUsages.C3FindUsagesProvider"/>