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ros2 / launch

Tools for launching multiple processes and for writing tests involving multiple processes.
Apache License 2.0
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Passing array args broken in XML backend #633

Open sundermann opened 2 years ago

sundermann commented 2 years ago

Bug report

Required Info:

Steps to reproduce issue

<launch>
    <arg name="int_array" default="1,2,3,4,5,6,7" />

    <node pkg="test_node" name="test_node" exec="test_node">
        <param name="int_array"  value-sep="," value="$(var int_array)" />
    </node>
</launch>

Expected behavior

Should correctly pass the arg int_array as integer array to the node.

Actual behavior

Passes ['1,2,3,4,5,6,7'] instead:


[test_node-1] libc++abi: terminating with uncaught exception of type rclcpp::exceptions::InvalidParameterTypeException: parameter 'ids_to_ignore' has invalid type: Wrong parameter type, parameter {int_array} is of type {integer_array}, setting it to {string_array} is not allowed.```