[Go] Fix for decoding into a struct with pre-allocated slices.#825
Merged
mjpt777 merged 3 commits intoaeron-io:masterfrom Dec 13, 2020
Merged
[Go] Fix for decoding into a struct with pre-allocated slices.#825mjpt777 merged 3 commits intoaeron-io:masterfrom
mjpt777 merged 3 commits intoaeron-io:masterfrom
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This change allows you to call `Decode()` on an sbe struct where the struct has pre-allocated slices. Before, the code would allocate a new slice if the capacity on the existing slice was less than the number of groups in the message. If the old slice had a greater capacity, it wouldn't truncate the number of elements to the new length.
This tests that if the existing decoded struct has a vardata value with length = 5, and the message to decode has length = 4, then the vardata value is truncated to length 4.
ethanf
changed the title
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@billsegall can you have a look? |
Contributor
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I like it. It's a neat fix. |
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This change allows you to call
Decode()on an sbe struct where the struct has pre-allocated slices. Before, the code would allocate a new slice if the capacity on the existing slice was less than the number of groups in the message. If the old slice had a greater capacity, it wouldn't truncate the number of elements to the new length. The same issue with vardata fields.