Fix tests according to new PSI structure; move doc comment text calculation from JetQuickDocumentationProvider to KDocTag.getContent()

compiler/frontend/src/org/jetbrains/kotlin/kdoc/lexer/KDocTokens.java

@@ -57,7 +57,7 @@ public interface KDocTokens {
 
     /**
      * First word following the tag name (@xxx). Depending on the tag name, this can be
-     * either a link (@param xxx) or just a plain text word (@author name).
+     * either a link (@param xxx) or just a plain text word (@since version).
      * We understand which one it is during parsing.
      */
     KDocToken TEXT_OR_LINK          = new KDocToken("KDOC_TEXT_OR_LINK");

compiler/frontend/src/org/jetbrains/kotlin/kdoc/psi/api/KDoc.java

@@ -17,7 +17,9 @@
 package org.jetbrains.kotlin.kdoc.psi.api;
 
 import com.intellij.psi.PsiComment;
+import org.jetbrains.kotlin.kdoc.psi.impl.KDocSection;
 
 // Don't implement JetElement (or it will be treated as statement)
 public interface KDoc extends PsiComment {
+    KDocSection getDefaultSection();
 }

compiler/frontend/src/org/jetbrains/kotlin/kdoc/psi/impl/KDocImpl.java

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.kdoc.psi.impl;
 import com.intellij.lang.Language;
 import com.intellij.psi.impl.source.tree.LazyParseablePsiElement;
 import com.intellij.psi.tree.IElementType;
+import com.intellij.psi.util.PsiTreeUtil;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.kotlin.idea.JetLanguage;
 import org.jetbrains.kotlin.kdoc.lexer.KDocTokens;
@@ -45,4 +46,9 @@ public class KDocImpl extends LazyParseablePsiElement implements KDoc {
     public IElementType getTokenType() {
         return JetTokens.DOC_COMMENT;
     }
+
+    @Override
+    public KDocSection getDefaultSection() {
+        return PsiTreeUtil.getChildOfType(this, KDocSection.class);
+    }
 }

compiler/frontend/src/org/jetbrains/kotlin/kdoc/psi/impl/KDocSection.java

@@ -25,7 +25,7 @@ import org.jetbrains.annotations.NotNull;
  * can have sections for the class itself, its primary constructor and each of the
  * properties defined in the primary constructor.
  */
-public class KDocSection extends KDocElementImpl {
+public class KDocSection extends KDocTag {
     public KDocSection(@NotNull ASTNode node) {
         super(node);
     }

compiler/frontend/src/org/jetbrains/kotlin/kdoc/psi/impl/KDocTag.java

@@ -17,11 +17,68 @@
 package org.jetbrains.kotlin.kdoc.psi.impl;
 
 import com.intellij.lang.ASTNode;
+import com.intellij.openapi.util.text.StringUtil;
+import com.intellij.psi.TokenType;
+import com.intellij.psi.tree.IElementType;
+import com.intellij.psi.util.PsiTreeUtil;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.kotlin.kdoc.lexer.KDocTokens;
+import org.jetbrains.kotlin.kdoc.parser.KDocElementTypes;
 
 public class KDocTag extends KDocElementImpl {
     public KDocTag(@NotNull ASTNode node) {
         super(node);
     }
 
+    public String getContent() {
+        StringBuilder builder = new StringBuilder();
+
+        boolean contentStarted = false;
+        boolean afterAsterisk = false;
+        boolean startsWithTagName = false;
+
+        ASTNode[] children = getNode().getChildren(null);
+        for (int i = 0; i < children.length; i++) {
+            ASTNode node = children[i];
+            IElementType type = node.getElementType();
+            if (i == 0 && type == KDocTokens.TAG_NAME) {
+                startsWithTagName = true;
+            }
+            if (KDocTokens.CONTENT_TOKENS.contains(type) || type == KDocElementTypes.KDOC_LINK) {
+                contentStarted = true;
+                builder.append(afterAsterisk ? StringUtil.trimLeading(node.getText()) : node.getText());
+                afterAsterisk = false;
+            }
+
+            if (type == KDocTokens.LEADING_ASTERISK || type == KDocTokens.START) {
+                afterAsterisk = true;
+            }
+
+            if (type == TokenType.WHITE_SPACE) {
+                if (i == 1 && startsWithTagName) {
+                    builder.append(node.getText());
+                }
+                else if (contentStarted) {
+                    builder.append(StringUtil.repeat("\n", StringUtil.countNewLines(node.getText())));
+                }
+            }
+
+            if (type == KDocElementTypes.KDOC_TAG) {
+                break;
+            }
+        }
+
+        return builder.toString();
+    }
+
+    public String getContentWithTags() {
+        StringBuilder content = new StringBuilder(getContent());
+        KDocTag[] subTags = PsiTreeUtil.getChildrenOfType(this, KDocTag.class);
+        if (subTags != null) {
+            for (KDocTag tag : subTags) {
+                content.append(tag.getContentWithTags()).append("\n");
+            }
+        }
+        return content.toString();
+    }
 }