Examples with SwitchBlockStatementGroupContext org.apache.groovy.parser.antlr4.GroovyParser.SwitchBlockStatementGroupContext used on opensource projects

Example 1 with SwitchBlockStatementGroupContext

use of org.apache.groovy.parser.antlr4.GroovyParser.SwitchBlockStatementGroupContext in project groovy by apache.

the class AstBuilder method visitSwitchBlockStatementGroup.

@Override
@SuppressWarnings("unchecked")
public List<Statement> visitSwitchBlockStatementGroup(final SwitchBlockStatementGroupContext ctx) {
    int labelCnt = ctx.switchLabel().size();
    List<Token> firstLabelHolder = new ArrayList<>(1);
    return (List<Statement>) ctx.switchLabel().stream().map(e -> (Object) this.visitSwitchLabel(e)).reduce(new ArrayList<Statement>(4), (r, e) -> {
        List<Statement> statementList = (List<Statement>) r;
        Tuple2<Token, Expression> tuple = (Tuple2<Token, Expression>) e;
        boolean isLast = labelCnt - 1 == statementList.size();
        switch(tuple.getV1().getType()) {
            case CASE:
                {
                    if (!asBoolean(statementList)) {
                        firstLabelHolder.add(tuple.getV1());
                    }
                    statementList.add(configureAST(new CaseStatement(tuple.getV2(), // check whether processing the last label. if yes, block statement should be attached.
                    isLast ? this.visitBlockStatements(ctx.blockStatements()) : EmptyStatement.INSTANCE), firstLabelHolder.get(0)));
                    break;
                }
            case DEFAULT:
                {
                    BlockStatement blockStatement = this.visitBlockStatements(ctx.blockStatements());
                    blockStatement.putNodeMetaData(IS_SWITCH_DEFAULT, true);
                    statementList.add(// this.configureAST(blockStatement, tuple.getKey())
                    blockStatement);
                    break;
                }
        }
        return statementList;
    });
}