Examples with Select com.google.api.expr.v1alpha1.Expr.Select used on opensource projects

Example 1 with Select

use of com.google.api.expr.v1alpha1.Expr.Select in project cel-java by projectnessie.

the class AstPruner method prune.

Expr prune(Expr node) {
    if (node == null) {
        return null;
    }
    Val val = value(node.getId());
    if (val != null && !isUnknownOrError(val)) {
        Expr newNode = maybeCreateLiteral(node.getId(), val);
        if (newNode != null) {
            return newNode;
        }
    }
    switch(node.getExprKindCase()) {
        case SELECT_EXPR:
            Select select = node.getSelectExpr();
            Expr operand = prune(select.getOperand());
            if (operand != null && operand != select.getOperand()) {
                return Expr.newBuilder().setId(node.getId()).setSelectExpr(Select.newBuilder().setOperand(operand).setField(select.getField()).setTestOnly(select.getTestOnly())).build();
            }
            break;
        case CALL_EXPR:
            Call call = node.getCallExpr();
            Expr newExpr = maybePruneFunction(node);
            if (newExpr != null) {
                newExpr = prune(newExpr);
                return newExpr;
            }
            boolean prunedCall = false;
            List<Expr> args = call.getArgsList();
            List<Expr> newArgs = new ArrayList<>(args.size());
            for (int i = 0; i < args.size(); i++) {
                Expr arg = args.get(i);
                newArgs.add(arg);
                Expr newArg = prune(arg);
                if (newArg != null && newArg != arg) {
                    prunedCall = true;
                    newArgs.set(i, newArg);
                }
            }
            Call newCall = Call.newBuilder().setFunction(call.getFunction()).setTarget(call.getTarget()).addAllArgs(newArgs).build();
            Expr newTarget = prune(call.getTarget());
            if (newTarget != null && newTarget != call.getTarget()) {
                prunedCall = true;
                newCall = Call.newBuilder().setFunction(call.getFunction()).setTarget(newTarget).addAllArgs(newArgs).build();
            }
            if (prunedCall) {
                return Expr.newBuilder().setId(node.getId()).setCallExpr(newCall).build();
            }
            break;
        case LIST_EXPR:
            CreateList list = node.getListExpr();
            List<Expr> elems = list.getElementsList();
            List<Expr> newElems = new ArrayList<>(elems.size());
            boolean prunedList = false;
            for (int i = 0; i < elems.size(); i++) {
                Expr elem = elems.get(i);
                newElems.add(elem);
                Expr newElem = prune(elem);
                if (newElem != null && newElem != elem) {
                    newElems.set(i, newElem);
                    prunedList = true;
                }
            }
            if (prunedList) {
                return Expr.newBuilder().setId(node.getId()).setListExpr(CreateList.newBuilder().addAllElements(newElems)).build();
            }
            break;
        case STRUCT_EXPR:
            boolean prunedStruct = false;
            CreateStruct struct = node.getStructExpr();
            List<Entry> entries = struct.getEntriesList();
            String messageType = struct.getMessageName();
            List<Entry> newEntries = new ArrayList<>(entries.size());
            for (int i = 0; i < entries.size(); i++) {
                Entry entry = entries.get(i);
                newEntries.add(entry);
                Expr mapKey = entry.getMapKey();
                Expr newKey = mapKey != Entry.getDefaultInstance().getMapKey() ? prune(mapKey) : null;
                Expr newValue = prune(entry.getValue());
                if ((newKey == null || newKey == mapKey) && (newValue == null || newValue == entry.getValue())) {
                    continue;
                }
                prunedStruct = true;
                Entry newEntry;
                if (!messageType.isEmpty()) {
                    newEntry = Entry.newBuilder().setFieldKey(entry.getFieldKey()).setValue(newValue).build();
                } else {
                    newEntry = Entry.newBuilder().setMapKey(newKey).setValue(newValue).build();
                }
                newEntries.set(i, newEntry);
            }
            if (prunedStruct) {
                return Expr.newBuilder().setId(node.getId()).setStructExpr(CreateStruct.newBuilder().setMessageName(messageType).addAllEntries(entries)).build();
            }
            break;
        case COMPREHENSION_EXPR:
            Comprehension compre = node.getComprehensionExpr();
            // Only the range of the comprehension is pruned since the state tracking only records
            // the last iteration of the comprehension and not each step in the evaluation which
            // means that the any residuals computed in between might be inaccurate.
            Expr newRange = prune(compre.getIterRange());
            if (newRange != null && newRange != compre.getIterRange()) {
                return Expr.newBuilder().setId(node.getId()).setComprehensionExpr(Comprehension.newBuilder().setIterVar(compre.getIterVar()).setIterRange(newRange).setAccuVar(compre.getAccuVar()).setAccuInit(compre.getAccuInit()).setLoopCondition(compre.getLoopCondition()).setLoopStep(compre.getLoopStep()).setResult(compre.getResult())).build();
            }
    }
    // allocation cost at another point. So go with the simple approach - at least for now.
    return node;
}

Example 2 with Select

use of com.google.api.expr.v1alpha1.Expr.Select in project cel-java by projectnessie.

the class Container method toQualifiedName.

/**
 * ToQualifiedName converts an expression AST into a qualified name if possible, with a boolean +
 * 'found' value that indicates if the conversion is successful.
 */
public static String toQualifiedName(Expr e) {
    switch(e.getExprKindCase()) {
        case IDENT_EXPR:
            return e.getIdentExpr().getName();
        case SELECT_EXPR:
            Select sel = e.getSelectExpr();
            if (sel.getTestOnly()) {
                return null;
            }
            String qual = toQualifiedName(sel.getOperand());
            if (qual != null) {
                return qual + "." + sel.getField();
            }
            break;
    }
    return null;
}