Examples with PyObject org.cafebabepy.runtime.PyObject used on opensource projects

Example 31 with PyObject

use of org.cafebabepy.runtime.PyObject in project cafebabepy by cafebabepy.

the class InterpretEvaluator method evalGenerators.

private void evalGenerators(PyObject context, PyObject elt, List<PyObject> generators, List<PyObject> resultList) {
    PyObject generator = generators.get(0);
    PyObject target = this.runtime.getattr(generator, "target");
    PyObject iter = this.runtime.getattr(generator, "iter");
    PyObject ifs = this.runtime.getattr(generator, "ifs");
    PyObject is_async = this.runtime.getattr(generator, "is_async");
    PyObject evalIter = eval(context, iter);
    List<PyObject> ifList;
    if (ifs.isNone()) {
        ifList = Collections.emptyList();
    } else {
        ifList = this.runtime.toList(ifs);
    }
    this.runtime.iter(evalIter, next -> {
        assign(context, target, next);
        for (int i = 0; i < ifList.size(); i++) {
            PyObject result = eval(context, ifList.get(i));
            if (result.isFalse()) {
                return;
            }
        }
        if (generators.size() == 1) {
            resultList.add(eval(context, elt));
        } else {
            List<PyObject> gs = generators.subList(1, generators.size());
            evalGenerators(context, elt, gs, resultList);
        }
    });
}

Example 32 with PyObject

use of org.cafebabepy.runtime.PyObject in project cafebabepy by cafebabepy.

the class InterpretEvaluator method evalCompare.

private PyObject evalCompare(PyObject context, PyObject node) {
    // 1 < 2 < 3 < 4 => 1 < 2 && 2 < 3 && 3 < 4
    // 1 < 2 < 3 => 1 < 2 && 2 < 3
    // 1 < 2 => 1 < 2
    PyObject comparators = this.runtime.getattr(node, "comparators");
    List<PyObject> comparatorList = getLinkedList(comparators);
    PyObject left = this.runtime.getattr(node, "left");
    comparatorList.add(0, left);
    PyObject ops = this.runtime.getattr(node, "ops");
    List<PyObject> opList = getLinkedList(ops);
    PyObject eqType = this.runtime.typeOrThrow("_ast.Eq");
    PyObject notEqType = this.runtime.typeOrThrow("_ast.NotEq");
    PyObject ltType = this.runtime.typeOrThrow("_ast.Lt");
    PyObject lteType = this.runtime.typeOrThrow("_ast.LtE");
    PyObject gtType = this.runtime.typeOrThrow("_ast.Gt");
    PyObject gteType = this.runtime.typeOrThrow("_ast.GtE");
    boolean evalResult = true;
    for (int i = 0; i < comparatorList.size() - 1; i++) {
        PyObject evalLeft = eval(context, comparatorList.get(i));
        PyObject evalRight = eval(context, comparatorList.get(i + 1));
        PyObject op = opList.get(i);
        if (this.runtime.isInstance(op, eqType)) {
            evalResult &= this.runtime.eq(evalLeft, evalRight).isTrue();
        } else if (this.runtime.isInstance(op, notEqType)) {
            evalResult &= this.runtime.ne(evalLeft, evalRight).isTrue();
        } else if (this.runtime.isInstance(op, ltType)) {
            evalResult &= this.runtime.lt(evalLeft, evalRight).isTrue();
        } else if (this.runtime.isInstance(op, lteType)) {
            evalResult &= this.runtime.le(evalLeft, evalRight).isTrue();
        } else if (this.runtime.isInstance(op, gtType)) {
            evalResult &= this.runtime.gt(evalLeft, evalRight).isTrue();
        } else if (this.runtime.isInstance(op, gteType)) {
            evalResult &= this.runtime.ge(evalLeft, evalRight).isTrue();
        } else {
            throw this.runtime.newRaiseTypeError("Unknown AST '" + op.getType().getFullName() + "'");
        }
        if (!evalResult) {
            break;
        }
    }
    return this.runtime.bool(evalResult);
}

Example 33 with PyObject

use of org.cafebabepy.runtime.PyObject in project cafebabepy by cafebabepy.

the class InterpretEvaluator method evalAssign.

private PyObject evalAssign(PyObject context, PyObject node) {
    PyObject targets = this.runtime.getattr(node, "targets");
    PyObject value = this.runtime.getattr(node, "value");
    PyObject evalValue = eval(context, value);
    this.runtime.iter(targets, target -> assign(context, target, evalValue));
    return this.runtime.None();
}

Example 34 with PyObject

use of org.cafebabepy.runtime.PyObject in project cafebabepy by cafebabepy.

the class InterpretEvaluator method evalIfAndIfExp.

private PyObject evalIfAndIfExp(PyObject context, PyObject node) {
    PyObject test = this.runtime.getattr(node, "test");
    PyObject body = this.runtime.getattr(node, "body");
    PyObject orElse = this.runtime.getattr(node, "orelse");
    PyObject evalTest = eval(context, test);
    if (evalTest.isTrue()) {
        return eval(context, body);
    } else {
        return eval(context, orElse);
    }
}

Example 35 with PyObject

use of org.cafebabepy.runtime.PyObject in project cafebabepy by cafebabepy.

the class InterpretEvaluator method evalList.

private PyObject evalList(PyObject context, PyObject node) {
    PyObject elts = this.runtime.getattr(node, "elts");
    List<PyObject> elements = new ArrayList<>();
    this.runtime.iter(elts, elt -> {
        PyObject evalElt = eval(context, elt);
        PyObject type = elt.getType();
        if (type instanceof PyStarredType) {
            this.runtime.iter(evalElt, elements::add);
        } else {
            elements.add(evalElt);
        }
    });
    return this.runtime.list(elements);
}