com.github.antlrjavaparser.adapter.TrystatementContextAdapter Maven / Gradle / Ivy

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Antlr Java Parser aims to create a Java parser using Antlr 4 grammar rules.
There is a newer version: 1.0.17
/*
 * This file is part of antlr-java-parser.
 *
 *     antlr-java-parser is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     antlr-java-parser is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with antlr-java-parser.  If not, see .
 */

package com.github.antlrjavaparser.adapter;

import com.github.antlrjavaparser.Java7Parser;
import com.github.antlrjavaparser.api.stmt.Statement;
import com.github.antlrjavaparser.api.stmt.TryStmt;

public class TrystatementContextAdapter implements Adapter {
    public Statement adapt(Java7Parser.TrystatementContext context) {

        /*

        tryWithResources
            :    TRY resourceSpecification block catches? (FINALLY block)?
            ;

        resourceSpecification
            :    '(' resources (';')? ')'                                                                      // ( Resources [;] )
            ;

        resources
            :    resource ( ';' resource )*                                                                // Resource { ; Resource }
            ;

        resource
            :    variableModifiers? type Identifier EQ expression                       // {VariableModifier} ReferenceType VariableDeclaratorId = Expression
            ;

        catches
            :   catchClause
                (catchClause
                )*
            ;

        catchClause
            :   CATCH LPAREN catchFormalParameter RPAREN block
            ;

        catchFormalParameter
            :    variableModifiers type (BAR type)* Identifier (LBRACKET RBRACKET)*
            ;

        trystatement
        locals [int statementType]
            :    TRY block                       {$statementType = 1;}
            |    TRY block catches FINALLY block {$statementType = 2;}
            |    TRY block catches               {$statementType = 3;}
            |    TRY block FINALLY block         {$statementType = 4;}
            |    tryWithResources                {$statementType = 5;}
            ;

         */

        TryStmt tryStmt = new TryStmt();

        if (context.statementType != 5) {
            tryStmt.setTryBlock(Adapters.getBlockContextAdapter().adapt(context.block(0)));
        }

        switch (context.statementType) {
            case 1:
                break;
            case 2:
                tryStmt.setCatchs(Adapters.getCatchesContextAdapter().adapt(context.catches()));
                tryStmt.setFinallyBlock(Adapters.getBlockContextAdapter().adapt(context.block(1)));
                break;
            case 3:
                tryStmt.setCatchs(Adapters.getCatchesContextAdapter().adapt(context.catches()));
                break;
            case 4:
                tryStmt.setFinallyBlock(Adapters.getBlockContextAdapter().adapt(context.block(1)));
                break;
            case 5:
                return Adapters.getTryWithResourcesContextAdapter().adapt(context.tryWithResources());
        }

        return tryStmt;
    }
}