| /* |
| * Copyright 2000-2013 JetBrains s.r.o. |
| * |
| * 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 org.jetbrains.plugins.groovy.lang.parser.parsing.statements; |
| |
| import com.intellij.lang.PsiBuilder; |
| import org.jetbrains.plugins.groovy.GroovyBundle; |
| import org.jetbrains.plugins.groovy.lang.lexer.TokenSets; |
| import org.jetbrains.plugins.groovy.lang.parser.GroovyElementTypes; |
| import org.jetbrains.plugins.groovy.lang.parser.GroovyParser; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.auxiliary.modifiers.Modifiers; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.auxiliary.parameters.ParameterDeclaration; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.statements.expressions.StrictContextExpression; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.statements.expressions.arithmetic.ShiftExpression; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.types.TypeSpec; |
| import org.jetbrains.plugins.groovy.lang.parser.parsing.util.ParserUtils; |
| |
| /** |
| * @autor: ilyas |
| */ |
| public class ForStatement implements GroovyElementTypes { |
| |
| public static boolean forClauseParse(PsiBuilder builder, GroovyParser parser) { |
| ParserUtils.getToken(builder, mNLS); |
| return forInClauseParse(builder, parser) || tradForClauseParse(builder, parser); |
| } |
| |
| private static boolean tradForClauseParse(PsiBuilder builder, GroovyParser parser) { |
| PsiBuilder.Marker marker = builder.mark(); |
| |
| if (!ParameterDeclaration.parseTraditionalForParameter(builder, parser)) { |
| marker.rollbackTo(); |
| marker = builder.mark(); |
| StrictContextExpression.parse(builder, parser); |
| } |
| |
| ParserUtils.getToken(builder, mSEMI, GroovyBundle.message("semi.expected")); |
| StrictContextExpression.parse(builder, parser); |
| ParserUtils.getToken(builder, mSEMI, GroovyBundle.message("semi.expected")); |
| ParserUtils.getToken(builder, mNLS); |
| if (!mRPAREN.equals(builder.getTokenType())) { |
| StrictContextExpression.parse(builder, parser); |
| } |
| marker.done(FOR_TRADITIONAL_CLAUSE); |
| return true; |
| } |
| |
| /* |
| * Parses Groovy-style 'in' clause |
| */ |
| private static boolean forInClauseParse(PsiBuilder builder, GroovyParser parser) { |
| PsiBuilder.Marker marker = builder.mark(); |
| |
| PsiBuilder.Marker paramMarker = builder.mark(); |
| |
| Modifiers.parse(builder, parser); |
| |
| boolean isBuiltInType = TokenSets.BUILT_IN_TYPES.contains(builder.getTokenType()); |
| |
| PsiBuilder.Marker typeSpec = builder.mark(); |
| TypeSpec.parseStrict(builder, false); |
| |
| if (builder.getTokenType() == mIDENT || isBuiltInType) { |
| typeSpec.drop(); |
| } |
| else { |
| typeSpec.rollbackTo(); |
| } |
| |
| if (TokenSets.FOR_IN_DELIMITERS.contains(builder.getTokenType())) { |
| builder.error(GroovyBundle.message("identifier.expected")); |
| paramMarker.drop(); |
| } |
| else if (builder.getTokenType() == mIDENT) { |
| ParserUtils.getToken(builder, mIDENT); |
| paramMarker.done(PARAMETER); |
| } |
| else { |
| paramMarker.drop(); |
| marker.rollbackTo(); |
| return false; |
| } |
| |
| if (!ParserUtils.getToken(builder, kIN) && !ParserUtils.getToken(builder, mCOLON)) { |
| marker.rollbackTo(); |
| return false; |
| } |
| |
| if (!ShiftExpression.parse(builder, parser)) { |
| builder.error(GroovyBundle.message("expression.expected")); |
| } |
| marker.done(FOR_IN_CLAUSE); |
| return true; |
| } |
| } |