Examples with ELambda org.elasticsearch.painless.node.ELambda used on opensource projects

Example 1 with ELambda

use of org.elasticsearch.painless.node.ELambda in project elasticsearch by elastic.

the class Walker method visitLambda.

@Override
public ANode visitLambda(LambdaContext ctx) {
    reserved.push(new FunctionReserved());
    List<String> paramTypes = new ArrayList<>();
    List<String> paramNames = new ArrayList<>();
    List<AStatement> statements = new ArrayList<>();
    for (LamtypeContext lamtype : ctx.lamtype()) {
        if (lamtype.decltype() == null) {
            paramTypes.add("def");
        } else {
            paramTypes.add(lamtype.decltype().getText());
        }
        paramNames.add(lamtype.ID().getText());
    }
    if (ctx.expression() != null) {
        // single expression
        AExpression expression = (AExpression) visit(ctx.expression());
        statements.add(new SReturn(location(ctx), expression));
    } else {
        for (StatementContext statement : ctx.block().statement()) {
            statements.add((AStatement) visit(statement));
        }
    }
    String name = nextLambda();
    return new ELambda(name, (FunctionReserved) reserved.pop(), location(ctx), paramTypes, paramNames, statements);
}