[java-decompiler] IDEA-367141 Support encoding for unicode characters at high and medium level

GitOrigin-RevId: 66fb6d059af434c0b4630638cd8cd500bc8939ff

plugins/java-decompiler/plugin/src/org/jetbrains/java/decompiler/DecompilerPreset.kt

@@ -49,7 +49,7 @@ private val highPreset: Map<String, String> = basePreset + mapOf(
   IFernflowerPreferences.DECOMPILE_ENUM to "1",
   IFernflowerPreferences.REMOVE_GET_CLASS_NEW to "1",
   IFernflowerPreferences.LITERALS_AS_IS to "0",
-  IFernflowerPreferences.ASCII_STRING_CHARACTERS to "1",
+  IFernflowerPreferences.ASCII_STRING_CHARACTERS to "0",
   IFernflowerPreferences.BOOLEAN_TRUE_ONE to "1",
   IFernflowerPreferences.UNDEFINED_PARAM_TYPE_OBJECT to "1",
   IFernflowerPreferences.USE_DEBUG_VAR_NAMES to "1",
@@ -77,7 +77,7 @@ private val mediumPreset: Map<String, String> = basePreset + mapOf(
   IFernflowerPreferences.DECOMPILE_ENUM to "1",
   IFernflowerPreferences.REMOVE_GET_CLASS_NEW to "1",
   IFernflowerPreferences.LITERALS_AS_IS to "0",
-  IFernflowerPreferences.ASCII_STRING_CHARACTERS to "1",
+  IFernflowerPreferences.ASCII_STRING_CHARACTERS to "0",
   IFernflowerPreferences.BOOLEAN_TRUE_ONE to "1",
   IFernflowerPreferences.UNDEFINED_PARAM_TYPE_OBJECT to "1",
   IFernflowerPreferences.USE_DEBUG_VAR_NAMES to "1",

plugins/java-decompiler/plugin/test/com/intellij/java/decompiler/IdeaDecompilerTest.kt

@@ -153,6 +153,16 @@ class IdeaDecompilerTest : LightJavaCodeInsightFixtureTestCase() {
     doTestNavigation(17, 28, 16, 13)  // to "int r"
   }
 
+  fun testUnicode_high() {
+    val state = IdeaDecompilerSettings.State.fromPreset(DecompilerPreset.HIGH)
+    IdeaDecompilerSettings.getInstance().loadState(state)
+
+    val file = getTestFile("UnicodeTest.class")
+    val decompiled = IdeaDecompiler().getText(file).toString()
+    assertTrue(decompiled, decompiled.contains("你好"))
+    assertFalse(decompiled, decompiled.contains("\\u4f60"))
+  }
+
   private fun doTestNavigation(line: Int, column: Int, expectedLine: Int, expectedColumn: Int) {
     val target = GotoDeclarationAction.findTargetElement(project, myFixture.editor, offset(line, column)) as Navigatable
     target.navigate(true)