diff options
Diffstat (limited to 'platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java')
-rw-r--r-- | platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java index c1499a71a71b..8be2284e8360 100644 --- a/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java +++ b/platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorHighlighterCache.java @@ -15,10 +15,19 @@ */ package com.intellij.openapi.editor.impl; +import com.intellij.lexer.Lexer; import com.intellij.openapi.editor.Document; import com.intellij.openapi.editor.ex.util.LexerEditorHighlighter; import com.intellij.openapi.editor.highlighter.EditorHighlighter; +import com.intellij.openapi.editor.highlighter.EditorHighlighterFactory; +import com.intellij.openapi.project.Project; import com.intellij.openapi.util.Key; +import com.intellij.openapi.vfs.VirtualFile; +import com.intellij.psi.PsiDocumentManager; +import com.intellij.psi.PsiFile; +import com.intellij.psi.PsiManager; +import com.intellij.psi.impl.cache.impl.id.PlatformIdTableBuilding; +import com.intellij.psi.impl.search.LexerEditorHighlighterLexer; import com.intellij.reference.SoftReference; import org.jetbrains.annotations.NotNull; import org.jetbrains.annotations.Nullable; @@ -55,4 +64,28 @@ public class EditorHighlighterCache { return null; } + @Nullable + public static Lexer getLexerBasedOnLexerHighlighter(CharSequence text, VirtualFile virtualFile, Project project) { + EditorHighlighter highlighter = null; + + PsiFile psiFile = virtualFile != null ? PsiManager.getInstance(project).findFile(virtualFile) : null; + final Document document = psiFile != null ? PsiDocumentManager.getInstance(project).getDocument(psiFile) : null; + final EditorHighlighter cachedEditorHighlighter; + boolean alreadyInitializedHighlighter = false; + + if (document != null && + (cachedEditorHighlighter = getEditorHighlighterForCachesBuilding(document)) != null && + PlatformIdTableBuilding.checkCanUseCachedEditorHighlighter(text, cachedEditorHighlighter)) { + highlighter = cachedEditorHighlighter; + alreadyInitializedHighlighter = true; + } + else if (virtualFile != null) { + highlighter = EditorHighlighterFactory.getInstance().createEditorHighlighter(project, virtualFile); + } + + if (highlighter != null) { + return new LexerEditorHighlighterLexer(highlighter, alreadyInitializedHighlighter); + } + return null; + } } |