New upstream version 0~183.5153.4+dfsg

1 files changed, 43 insertions, 0 deletions

diff --git a/platform/script-debugger/debugger-ui/src/VariableContextWrapper.kt b/platform/script-debugger/debugger-ui/src/VariableContextWrapper.kt
new file mode 100644
index 00000000..6f0f434e
--- /dev/null
+++ b/platform/script-debugger/debugger-ui/src/VariableContextWrapper.kt
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2000-2016 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jetbrains.debugger
+
+import com.intellij.openapi.util.AtomicNotNullLazyValue
+import org.jetbrains.concurrency.Promise
+
+internal open class VariableContextWrapper(override val parent: VariableContext, override val scope: Scope?) : VariableContext {
+  // it's worth to cache it (JavaScriptDebuggerViewSupport, for example, performs expensive computation)
+  private val memberFilterPromise = object : AtomicNotNullLazyValue<Promise<MemberFilter>>() {
+    override fun compute() = parent.viewSupport.getMemberFilter(this@VariableContextWrapper)
+  }
+
+  override val variableName: String?
+    get() = parent.variableName
+
+  override val memberFilter: Promise<MemberFilter>
+    get() = memberFilterPromise.value
+
+  override val evaluateContext: EvaluateContext
+    get() = parent.evaluateContext
+
+  override val viewSupport: DebuggerViewSupport
+    get() = parent.viewSupport
+
+  override val vm: Vm?
+    get() = parent.vm
+
+  override fun watchableAsEvaluationExpression() = parent.watchableAsEvaluationExpression()
+}
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