Implement todo index pattern builder

Author: zolotov

src/META-INF/plugin.xml

@@ -43,7 +43,7 @@
  <depends optional="true" config-file="java-deps.xml">com.intellij.modules.java</depends>
  <depends optional="true" config-file="coverage.xml">Coverage</depends>
  <depends optional="true" config-file="coverage.xml">com.intellij.modules.coverage</depends>
- <!-- todo[IDEA 15] replace with real dependency -->
+ <!-- todo[IDEA 16] replace with real dependency -->
  <depends optional="true" config-file="app-engine.xml">com.intellij.modules.lang</depends>
 
  <module-components>
@@ -61,6 +61,7 @@
  <stubIndex implementation="com.goide.stubs.index.GoMethodIndex"/>
  <stubIndex implementation="com.goide.stubs.index.GoMethodFingerprintIndex"/>
  <stubElementTypeHolder class="com.goide.GoTypes"/>
+ <indexPatternBuilder implementation="com.goide.GoIndexPatternBuilder"/>
 
  <internalFileTemplate name="Go Application"/>
  <internalFileTemplate name="Go File"/>
@@ -294,7 +295,7 @@
  <!-- GAE -->
 
  <!-- START plugin.xml of future GAE module -->
- <!-- todo[IDEA 15] It's supposed that GAE-core module will be moved to IDEA source and bundled in IDEA 15 -->
+ <!-- todo[IDEA 16] It's supposed that GAE-core module will be moved to IDEA source and bundled in IDEA 16 -->
  <!--<id>com.intellij.appengine</id>-->
  <depends optional="true" config-file="google-app-engine-core-yaml.xml">org.jetbrains.plugins.yaml</depends>
  <extensionPoints>

src/com/goide/GoIndexPatternBuilder.java

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2013-2015 Sergey Ignatov, Alexander Zolotov, Florin Patan
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.goide;
+
+import com.goide.psi.GoFile;
+import com.intellij.lexer.Lexer;
+import com.intellij.psi.PsiFile;
+import com.intellij.psi.impl.search.IndexPatternBuilder;
+import com.intellij.psi.tree.IElementType;
+import com.intellij.psi.tree.TokenSet;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class GoIndexPatternBuilder implements IndexPatternBuilder {
+ @Nullable
+ @Override
+ public Lexer getIndexingLexer(@NotNull PsiFile file) {
+ return file instanceof GoFile ? ((GoFile)file).getParserDefinition().createLexer(file.getProject()) : null;
+ }
+
+ @Nullable
+ @Override
+ public TokenSet getCommentTokenSet(@NotNull PsiFile file) {
+ return GoParserDefinition.COMMENTS;
+ }
+
+ @Override
+ public int getCommentStartDelta(IElementType tokenType) {
+ return 0;
+ }
+
+ @Override
+ public int getCommentEndDelta(IElementType tokenType) {
+ return tokenType == GoParserDefinition.MULTILINE_COMMENT ? 2 : 0;
+ }
+}