Examples with SoyProtoValue com.google.template.soy.data.SoyProtoValue used on opensource projects

Example 1 with SoyProtoValue

use of com.google.template.soy.data.SoyProtoValue in project closure-templates by google.

the class EvalVisitor method visitNullSafeFieldAccessNode.

private SoyValue visitNullSafeFieldAccessNode(FieldAccessNode fieldAccess) {
    SoyValue base = visitNullSafeNodeRecurse(fieldAccess.getBaseExprChild());
    // attempting field access on non-SoyRecord
    if (!(base instanceof SoyRecord) && !(base instanceof SoyProtoValue)) {
        if (base == NullSafetySentinel.INSTANCE) {
            // Bail out if base expression failed a null-safety check.
            return NullSafetySentinel.INSTANCE;
        }
        if (fieldAccess.isNullSafe()) {
            if (isNullOrUndefinedBase(base)) {
                // Return the sentinel value that indicates that a null-safety check failed.
                return NullSafetySentinel.INSTANCE;
            } else {
                throw RenderException.create(String.format("While evaluating \"%s\", encountered non-record just before accessing \"%s\".", fieldAccess.toSourceString(), fieldAccess.getSourceStringSuffix()));
            }
        }
        // TODO: If feasible, find and fix existing instances, then throw RenderException here.
        return UndefinedData.INSTANCE;
    }
    // the base type is possibly nullable, so remove null before testing for being a proto
    if (SoyTypes.tryRemoveNull(fieldAccess.getBaseExprChild().getType()).getKind() == Kind.PROTO) {
        return ((SoyProtoValue) base).getProtoField(fieldAccess.getFieldName());
    }
    maybeMarkBadProtoAccess(fieldAccess, base);
    // base is a valid SoyRecord: get value
    SoyValue value = ((SoyRecord) base).getField(fieldAccess.getFieldName());
    // TODO(user): Consider cleaning up the null / NullData inconsistencies.
    if (value != null && !TofuTypeChecks.isInstance(fieldAccess.getType(), value)) {
        throw RenderException.create(String.format("Expected value of type '%s', but actual type was '%s'.", fieldAccess.getType(), value.getClass().getSimpleName()));
    }
    return (value != null) ? value : UndefinedData.INSTANCE;
}