Examples with NamedExpression com.dexels.navajo.parser.NamedExpression used on opensource projects

Example 1 with NamedExpression

use of com.dexels.navajo.parser.NamedExpression in project navajo by Dexels.

the class ASTReactiveScriptNode method interpretToLambda.

@Override
public ContextExpression interpretToLambda(List<String> problems, String originalExpression, Function<String, FunctionClassification> functionClassifier, Function<String, Optional<Node>> mapResolver) {
    int start = hasHeader ? headers : 0;
    if (hasHeader) {
        for (int i = 0; i < headers; i++) {
            ASTKeyValueNode hdr = (ASTKeyValueNode) jjtGetChild(i);
            NamedExpression ne = (NamedExpression) hdr.interpretToLambda(problems, originalExpression, functionClassifier, mapResolver);
            String key = ne.name;
            headerMap.put(key, ne.apply());
        }
    }
    int count = jjtGetNumChildren();
    List<Node> unnamedPipes = new ArrayList<>();
    Map<String, Node> namedPipes = new HashMap<>();
    for (int i = start; i < count; i++) {
        Node child = jjtGetChild(i);
        // ASTReactivePipe pipe = null;
        if (child instanceof ASTPipeDefinition) {
            unnamedPipes.add((ASTPipeDefinition) child);
        } else if (child instanceof ASTKeyValueNode) {
            ASTKeyValueNode kvNode = (ASTKeyValueNode) child;
            String streamName = kvNode.val;
            Node namedPipe = kvNode.jjtGetChild(0);
            // assert value types perhaps? TODO
            namedPipes.put(streamName, namedPipe);
        }
    }
    List<ReactivePipeNode> pipes = unnamedPipes.stream().map(p -> (ReactivePipeNode) p.interpretToLambda(problems, originalExpression, functionClassifier, name -> {
        Optional<Node> initial = Optional.ofNullable(namedPipes.get(name));
        if (initial.isPresent()) {
            return initial;
        } else {
            return mapResolver.apply(name);
        }
    })).collect(Collectors.toList());
    return new ContextExpression() {

        @Override
        public Optional<String> returnType() {
            return Optional.of(Reactive.ReactiveItemType.REACTIVE_SCRIPT.toString());
        }

        @Override
        public boolean isLiteral() {
            return true;
        }

        @Override
        public String expression() {
            return "";
        }

        @Override
        public Operand apply(Navajo doc, Message parentMsg, Message parentParamMsg, Selection parentSel, MappableTreeNode mapNode, TipiLink tipiLink, Access access, Optional<ImmutableMessage> immutableMessage, Optional<ImmutableMessage> paramMessage) {
            return Operand.ofCustom(pipes, Reactive.ReactiveItemType.REACTIVE_SCRIPT.toString());
        }
    };
}

Example 2 with NamedExpression

use of com.dexels.navajo.parser.NamedExpression in project navajo by Dexels.

the class ASTFunctionNode method interpretToLambda.

@Override
public ContextExpression interpretToLambda(List<String> problems, String expression, Function<String, FunctionClassification> functionClassifier, Function<String, Optional<Node>> mapResolver) {
    List<ContextExpression> unnamed = new LinkedList<>();
    // TODO make lazy?
    Map<String, ContextExpression> named = new HashMap<>();
    for (int i = 0; i < jjtGetNumChildren(); i++) {
        Node sn = jjtGetChild(i);
        ContextExpression cn = sn.interpretToLambda(problems, expression, functionClassifier, mapResolver);
        if (cn instanceof NamedExpression) {
            NamedExpression ne = (NamedExpression) cn;
            named.put(ne.name, ne.expression);
        } else {
            unnamed.add(cn);
        }
    }
    FunctionClassification mode = functionClassifier.apply(functionName);
    switch(mode) {
        case REACTIVE_HEADER:
            break;
        case REACTIVE_SOURCE:
            return new ReactiveParseItem(functionName, Reactive.ReactiveItemType.REACTIVE_SOURCE, named, unnamed, expression, this);
        case REACTIVE_TRANSFORMER:
            return new ReactiveParseItem(functionName, Reactive.ReactiveItemType.REACTIVE_TRANSFORMER, named, unnamed, expression, this);
        case REACTIVE_REDUCER:
            return new ReactiveParseItem(functionName, Reactive.ReactiveItemType.REACTIVE_MAPPER, named, unnamed, expression, this);
        case DEFAULT:
        default:
    }
    return resolveNormalFunction(unnamed, named, problems, expression);
}

Example 3 with NamedExpression

use of com.dexels.navajo.parser.NamedExpression in project navajo by Dexels.

the class ASTKeyValueNode method interpretToLambda.

@Override
public ContextExpression interpretToLambda(List<String> problems, String originalExpression, Function<String, FunctionClassification> functionClassifier, Function<String, Optional<Node>> mapResolver) {
    int num = jjtGetNumChildren();
    if (num != 1) {
        problems.add("Incorrect # of params in named parameter");
    }
    ContextExpression exp = jjtGetChild(0).interpretToLambda(problems, originalExpression, functionClassifier, mapResolver);
    return new NamedExpression(val, exp);
}

Example 4 with NamedExpression

use of com.dexels.navajo.parser.NamedExpression in project navajo by Dexels.

the class TestCompiledExpression method testNamedExpression.

@Test
public void testNamedExpression() throws ParseException {
    String expression = "aap=1+1";
    StringReader sr = new StringReader(expression);
    CompiledParser cp = new CompiledParser(sr);
    cp.KeyValue();
    ASTKeyValueNode atn = (ASTKeyValueNode) cp.getJJTree().rootNode();
    List<String> problems = new ArrayList<>();
    NamedExpression ne = (NamedExpression) atn.interpretToLambda(problems, expression, fn -> FunctionClassification.DEFAULT, name -> Optional.empty());
    Assert.assertEquals(0, problems.size());
    Assert.assertEquals("aap", ne.name);
    Assert.assertEquals(2, ne.apply().value);
}