From 7ccfd3772d0d65236787b6c451aa57a58043ebe0 Mon Sep 17 00:00:00 2001
From: Daniil Kalinin <Daniil.Kalinin@jetbrains.com>
Date: Mon, 19 Aug 2024 15:23:56 +0200
Subject: [PATCH] PY-72185 disable reparseable leaves by default for further
 investigation

GitOrigin-RevId: 87a1d99a80415128b303f2b0cb343afd2c939b6a
---
 .../resources/META-INF/PythonParser.xml       |  2 +-
 .../resources/intellij.python.parser.xml      |  2 +-
 .../PythonIncrementalParsingTestCase.java     | 19 ++++++++++++++++---
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/python/python-parser/resources/META-INF/PythonParser.xml b/python/python-parser/resources/META-INF/PythonParser.xml
index a8387752c569..2718fb745ed6 100644
--- a/python/python-parser/resources/META-INF/PythonParser.xml
+++ b/python/python-parser/resources/META-INF/PythonParser.xml
@@ -11,7 +11,7 @@
               extensions="pyi"
               implementationClass="com.jetbrains.python.pyi.PyiFileType"
               fieldName="INSTANCE"/>
-    <registryKey key="python.ast.leaves.incremental.reparse" defaultValue="true"
+    <registryKey key="python.ast.leaves.incremental.reparse" defaultValue="false"
                  description="Enables incremental reparse for Python leaf elements (string literals, identifiers, comments)"/>
   </extensions>
   <extensionPoints>
diff --git a/python/python-parser/resources/intellij.python.parser.xml b/python/python-parser/resources/intellij.python.parser.xml
index a8387752c569..2718fb745ed6 100644
--- a/python/python-parser/resources/intellij.python.parser.xml
+++ b/python/python-parser/resources/intellij.python.parser.xml
@@ -11,7 +11,7 @@
               extensions="pyi"
               implementationClass="com.jetbrains.python.pyi.PyiFileType"
               fieldName="INSTANCE"/>
-    <registryKey key="python.ast.leaves.incremental.reparse" defaultValue="true"
+    <registryKey key="python.ast.leaves.incremental.reparse" defaultValue="false"
                  description="Enables incremental reparse for Python leaf elements (string literals, identifiers, comments)"/>
   </extensions>
   <extensionPoints>
diff --git a/python/testSrc/com/jetbrains/python/parsing/PythonIncrementalParsingTestCase.java b/python/testSrc/com/jetbrains/python/parsing/PythonIncrementalParsingTestCase.java
index e649cc8f917c..2fedd2af8e25 100644
--- a/python/testSrc/com/jetbrains/python/parsing/PythonIncrementalParsingTestCase.java
+++ b/python/testSrc/com/jetbrains/python/parsing/PythonIncrementalParsingTestCase.java
@@ -2,6 +2,7 @@
 package com.jetbrains.python.parsing;
 
 import com.intellij.openapi.util.io.FileUtil;
+import com.intellij.openapi.util.registry.Registry;
 import com.intellij.testFramework.ParsingTestUtil;
 import com.jetbrains.python.fixtures.PyTestCase;
 import org.jetbrains.annotations.NotNull;
@@ -11,6 +12,9 @@ import java.io.IOException;
 
 public abstract class PythonIncrementalParsingTestCase extends PyTestCase {
 
+  private static final String STATEMENTS_REGISTRY_KEY = "python.statement.lists.incremental.reparse";
+  private static final String AST_LEAVES_REGISTRY_KEY = "python.ast.leaves.incremental.reparse";
+
   protected @NotNull String getFileExtension() {
     return ".py";
   }
@@ -35,20 +39,29 @@ public abstract class PythonIncrementalParsingTestCase extends PyTestCase {
                         @NotNull String newTextFileBaseName,
                         boolean checkInitialTreeForErrors,
                         boolean checkFinalTreeForErrors) {
+    boolean statementListsRegistryFlag = Registry.is(STATEMENTS_REGISTRY_KEY);
+    boolean leavesRegistryFlag = Registry.is(AST_LEAVES_REGISTRY_KEY);
+
     var sourceFileName = sourceFileBaseName + "/" + sourceFileBaseName + getFileExtension();
     myFixture.configureByFile(sourceFileName);
     var newTextFileName = sourceFileBaseName + "/" + newTextFileBaseName + ".new";
     String newText;
     try {
+      Registry.get(STATEMENTS_REGISTRY_KEY).setValue(true);
+      Registry.get(AST_LEAVES_REGISTRY_KEY).setValue(true);
+
       newText = FileUtil.loadFile(new File(getTestDataPath(), newTextFileName)).replace("\r", "");
+      ParsingTestUtil.testIncrementalParsing(myFixture.getFile(), newText, getAnswersFilePath(),
+                                             checkInitialTreeForErrors, checkFinalTreeForErrors);
     }
     catch (IOException e) {
       fail(e.getMessage());
       throw new RuntimeException();
     }
-
-    ParsingTestUtil.testIncrementalParsing(myFixture.getFile(), newText, getAnswersFilePath(),
-                                           checkInitialTreeForErrors, checkFinalTreeForErrors);
+    finally {
+      Registry.get(STATEMENTS_REGISTRY_KEY).setValue(statementListsRegistryFlag);
+      Registry.get(AST_LEAVES_REGISTRY_KEY).setValue(leavesRegistryFlag);
+    }
   }
 
   protected String getAnswersFilePath() {