/*
 * Copyright 2013-2017 consulo.io
 *
 * 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 consulo.csharp.lang.psi;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import consulo.csharp.lang.CSharpCfsLanguageVersion;
import consulo.csharp.lang.CSharpLanguage;
import consulo.csharp.lang.doc.psi.CSharpDocElements;
import com.intellij.lang.ASTNode;
import com.intellij.lang.Language;
import com.intellij.lang.LanguageParserDefinitions;
import com.intellij.lang.PsiBuilder;
import com.intellij.lang.PsiBuilderFactory;
import com.intellij.lang.PsiParser;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.psi.impl.source.tree.LazyParseablePsiElement;
import com.intellij.psi.tree.IElementType;
import com.intellij.psi.tree.ILazyParseableElementType;
import consulo.csharp.cfs.lang.CfsLanguage;
import consulo.lang.LanguageVersion;

/**
 * @author VISTALL
 * @since 15.09.14
 */
public interface CSharpTokensImpl extends CSharpTokens
{
	IElementType LINE_DOC_COMMENT = CSharpDocElements.LINE_DOC_COMMENT;

	IElementType INTERPOLATION_STRING_LITERAL = new ILazyParseableElementType("INTERPOLATION_STRING_LITERAL", CSharpLanguage.INSTANCE)
	{
		@Override
		protected ASTNode doParseContents(@NotNull final ASTNode chameleon, @NotNull final PsiElement psi)
		{
			final Project project = psi.getProject();
			final Language languageForParser = getLanguageForParser(psi);
			final LanguageVersion languageVersion = CSharpCfsLanguageVersion.getInstance();
			final PsiBuilder builder = PsiBuilderFactory.getInstance().createBuilder(project, chameleon, null, languageForParser, languageVersion,
					chameleon.getChars());
			final PsiParser parser = LanguageParserDefinitions.INSTANCE.forLanguage(languageForParser).createParser(languageVersion);
			return parser.parse(this, builder, languageVersion).getFirstChildNode();
		}

		@Override
		protected Language getLanguageForParser(PsiElement psi)
		{
			return CfsLanguage.INSTANCE;
		}

		@Nullable
		@Override
		public ASTNode createNode(CharSequence text)
		{
			return new LazyParseablePsiElement(this, text);
		}
	};
}