@NotNull private static DiffLog makeFullParse( @NotNull PsiFileImpl fileImpl, @NotNull CharSequence newFileText, @NotNull ProgressIndicator indicator, @NotNull CharSequence lastCommittedText) { if (fileImpl instanceof PsiCodeFragment) { FileElement parent = fileImpl.getTreeElement(); final FileElement holderElement = new DummyHolder(fileImpl.getManager(), null).getTreeElement(); holderElement.rawAddChildren( fileImpl.createContentLeafElement( holderElement.getCharTable().intern(newFileText, 0, newFileText.length()))); DiffLog diffLog = new DiffLog(); diffLog.appendReplaceFileElement(parent, (FileElement) holderElement.getFirstChildNode()); return diffLog; } else { FileViewProvider viewProvider = fileImpl.getViewProvider(); viewProvider.getLanguages(); FileType fileType = viewProvider.getVirtualFile().getFileType(); String fileName = fileImpl.getName(); final LightVirtualFile lightFile = new LightVirtualFile( fileName, fileType, newFileText, viewProvider.getVirtualFile().getCharset(), fileImpl.getViewProvider().getModificationStamp()); lightFile.setOriginalFile(viewProvider.getVirtualFile()); FileViewProvider copy = viewProvider.createCopy(lightFile); if (copy.isEventSystemEnabled()) { throw new AssertionError( "Copied view provider must be non-physical for reparse to deliver correct events: " + viewProvider); } copy.getLanguages(); SingleRootFileViewProvider.doNotCheckFileSizeLimit( lightFile); // optimization: do not convert file contents to bytes to determine if we // should codeinsight it PsiFileImpl newFile = getFileCopy(fileImpl, copy); newFile.setOriginalFile(fileImpl); final FileElement newFileElement = (FileElement) newFile.getNode(); final FileElement oldFileElement = (FileElement) fileImpl.getNode(); if (!lastCommittedText.toString().equals(oldFileElement.getText())) { throw new IncorrectOperationException(); } DiffLog diffLog = mergeTrees(fileImpl, oldFileElement, newFileElement, indicator, lastCommittedText); ((PsiManagerEx) fileImpl.getManager()).getFileManager().setViewProvider(lightFile, null); return diffLog; } }