From e005a2df9a9965b867b9f46e186265dc9ddf28a5 Mon Sep 17 00:00:00 2001
From: Anton Makeev <Anton.Makeev@jetbrains.com>
Date: Fri, 23 Jul 2010 15:44:20 +0400
Subject: [PATCH] CIDR: code fragments CIDR-debugger: value type resolving

---
 .../intellij/psi/tree/IFileElementType.java   |  4 ----
 .../com/intellij/psi/util/PsiTreeUtil.java    | 20 ++++++++++++++++++
 .../com/intellij/extapi/psi/PsiFileBase.java  | 21 -------------------
 3 files changed, 20 insertions(+), 25 deletions(-)

diff --git a/platform/lang-api/src/com/intellij/psi/tree/IFileElementType.java b/platform/lang-api/src/com/intellij/psi/tree/IFileElementType.java
index d21b5255b26f..221fa01d1570 100644
--- a/platform/lang-api/src/com/intellij/psi/tree/IFileElementType.java
+++ b/platform/lang-api/src/com/intellij/psi/tree/IFileElementType.java
@@ -42,8 +42,4 @@ public class IFileElementType extends ILazyParseableElementType {
     final PsiParser parser = LanguageParserDefinitions.INSTANCE.forLanguage(getLanguage()).createParser(project);
     return parser.parse(this, builder).getFirstChildNode();
   }
-
-  //public boolean isParsable(CharSequence buffer, final Project project) {
-  //  return true;
-  //}
 }
diff --git a/platform/lang-api/src/com/intellij/psi/util/PsiTreeUtil.java b/platform/lang-api/src/com/intellij/psi/util/PsiTreeUtil.java
index 471c3b15720e..f20559eef3fd 100644
--- a/platform/lang-api/src/com/intellij/psi/util/PsiTreeUtil.java
+++ b/platform/lang-api/src/com/intellij/psi/util/PsiTreeUtil.java
@@ -175,6 +175,26 @@ public class PsiTreeUtil {
     return parents;
   }
 
+  @Nullable public static <T extends PsiElement> T findChildOfType(@NotNull final PsiElement element, @NotNull final Class<T> aClass) {
+    return findChildOfType(element, aClass, true);
+  }
+
+  @Nullable public static <T extends PsiElement> T findChildOfType(@NotNull final PsiElement element, @NotNull final Class<T> aClass, final boolean strict) {
+    PsiElementProcessor.FindElement<PsiElement> processor = new PsiElementProcessor.FindElement<PsiElement>() {
+      @Override
+      public boolean execute(PsiElement each) {
+        if (strict && each == element) return true;
+        if (instanceOf(aClass, each)) {
+          return setFound(each);
+        }
+        return true;
+      }
+    };
+
+    PsiTreeUtil.processElements(element, processor);
+    return (T)processor.getFoundElement();
+  }
+
   @Nullable public static <T extends PsiElement> T getChildOfType(@NotNull PsiElement element, @NotNull Class<T> aClass) {
     for(PsiElement child = element.getFirstChild(); child != null; child = child.getNextSibling()){
       if (instanceOf(aClass, child)) return (T)child;
diff --git a/platform/lang-impl/src/com/intellij/extapi/psi/PsiFileBase.java b/platform/lang-impl/src/com/intellij/extapi/psi/PsiFileBase.java
index 6a69377c94ae..04f32480e7a9 100644
--- a/platform/lang-impl/src/com/intellij/extapi/psi/PsiFileBase.java
+++ b/platform/lang-impl/src/com/intellij/extapi/psi/PsiFileBase.java
@@ -66,27 +66,6 @@ public abstract class PsiFileBase extends PsiFileImpl {
     return myLanguage;
   }
 
-  protected final FileElement createFileElement(final CharSequence docText) {
-    //final ParserDefinition parserDefinition = myLanguage.getParserDefinition();
-    //if (parserDefinition != null && parserDefinition.createParser(getProject()) != PsiUtil.NULL_PARSER) {
-    //  return _createFileElement(docText, myLanguage, getProject(), parserDefinition);
-    //}
-    return super.createFileElement(docText);
-  }
-
-  //private static FileElement _createFileElement(final CharSequence docText,
-  //                                              final Language language,
-  //                                              Project project,
-  //                                              final ParserDefinition parserDefinition) {
-  //  final PsiParser parser = parserDefinition.createParser(project);
-  //  final IElementType root = parserDefinition.getFileNodeType();
-  //  final PsiBuilderImpl builder = new PsiBuilderImpl(language, project, null, docText);
-  //  final FileElement fileRoot = (FileElement)parser.parse(root, builder);
-  //  LOG.assertTrue(fileRoot.getElementType() == root,
-  //                 "Parsing file text returns rootElement with type different from declared in parser definition");
-  //  return fileRoot;
-  //}
-
   public void accept(@NotNull PsiElementVisitor visitor) {
     visitor.visitFile(this);
   }