Debugger: Do not validate line breakpoints for irrelevant classes (KT-30714)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/NoStrataPositionManagerHelper.kt

@@ -29,6 +29,7 @@ import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.util.containers.ConcurrentFactoryMap
 import com.sun.jdi.Location
 import com.sun.jdi.ReferenceType
+import com.sun.jdi.VirtualMachine
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.idea.debugger.evaluate.KotlinDebuggerCaches
 import org.jetbrains.kotlin.idea.refactoring.getLineCount
@@ -329,6 +330,12 @@ private fun inlinedLinesNumbers(
 
 @Volatile var emulateDexDebugInTests: Boolean = false
 
-fun DebugProcess.isDexDebug() =
-        (emulateDexDebugInTests && ApplicationManager.getApplication().isUnitTestMode) ||
-        (this.virtualMachineProxy as? VirtualMachineProxyImpl)?.virtualMachine?.name() == "Dalvik" // TODO: check other machine names
+fun DebugProcess.isDexDebug(): Boolean {
+    val virtualMachine = (this.virtualMachineProxy as? VirtualMachineProxyImpl)?.virtualMachine
+    return virtualMachine.isDexDebug()
+}
+
+fun VirtualMachine?.isDexDebug(): Boolean {
+    // TODO: check other machine names
+    return (emulateDexDebugInTests && ApplicationManager.getApplication().isUnitTestMode) || this?.name() == "Dalvik"
+}

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/breakpoints/KotlinLineBreakpoint.kt

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. 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.idea.debugger.breakpoints
+
+import com.intellij.debugger.engine.DebugProcess
+import com.intellij.debugger.impl.DebuggerUtilsEx
+import com.intellij.debugger.ui.breakpoints.LineBreakpoint
+import com.intellij.openapi.project.Project
+import com.intellij.xdebugger.XSourcePosition
+import com.intellij.xdebugger.breakpoints.XBreakpoint
+import com.intellij.xdebugger.breakpoints.XBreakpointProperties
+import com.sun.jdi.AbsentInformationException
+import com.sun.jdi.ReferenceType
+import org.jetbrains.java.debugger.breakpoints.properties.JavaLineBreakpointProperties
+import org.jetbrains.kotlin.codegen.inline.KOTLIN_STRATA_NAME
+import org.jetbrains.kotlin.idea.debugger.isDexDebug
+
+class KotlinLineBreakpoint(
+    project: Project?,
+    xBreakpoint: XBreakpoint<out XBreakpointProperties<*>>?
+) : LineBreakpoint<JavaLineBreakpointProperties>(project, xBreakpoint) {
+    override fun processClassPrepare(debugProcess: DebugProcess?, classType: ReferenceType?) {
+        val sourcePosition = xBreakpoint?.sourcePosition
+
+        if (classType != null && sourcePosition != null) {
+            if (!hasTargetLine(classType, sourcePosition)) {
+                return
+            }
+        }
+
+        super.processClassPrepare(debugProcess, classType)
+    }
+
+    /**
+     * Returns false if `classType` definitely does not contain a location for a given `sourcePosition`.
+     */
+    private fun hasTargetLine(classType: ReferenceType, sourcePosition: XSourcePosition): Boolean {
+        val allLineLocations = DebuggerUtilsEx.allLineLocations(classType) ?: return true
+
+        if (classType.virtualMachine().isDexDebug()) {
+            return true
+        }
+
+        val fileName = sourcePosition.file.name
+        val lineNumber = sourcePosition.line + 1
+
+        for (location in allLineLocations) {
+            try {
+                val kotlinFileName = location.sourceName(KOTLIN_STRATA_NAME)
+                val kotlinLineNumber = location.lineNumber(KOTLIN_STRATA_NAME)
+                if (kotlinFileName == fileName && kotlinLineNumber == lineNumber) {
+                    return true
+                }
+            } catch (e: AbsentInformationException) {
+                if (location.sourceName() == fileName && location.lineNumber() == lineNumber) {
+                    return true
+                }
+            }
+        }
+
+        return false
+    }
+}

idea/idea-jvm/src/org/jetbrains/kotlin/idea/debugger/breakpoints/KotlinLineBreakpointType.java

@@ -45,6 +45,14 @@ public class KotlinLineBreakpointType extends JavaLineBreakpointType {
         super("kotlin-line", "Kotlin Line Breakpoints");
     }
 
+    @NotNull
+    @Override
+    public Breakpoint<JavaLineBreakpointProperties> createJavaBreakpoint(
+            Project project, XBreakpoint<JavaLineBreakpointProperties> breakpoint
+    ) {
+        return new KotlinLineBreakpoint(project, breakpoint);
+    }
+
     @Override
     public boolean matchesPosition(@NotNull LineBreakpoint<?> breakpoint, @NotNull SourcePosition position) {
         JavaBreakpointProperties properties = getProperties(breakpoint);