26 lines
516 B
Markdown
26 lines
516 B
Markdown
# Objects disclaimer
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Touch Develop docs for the micro:bit.
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### Memory management on the micro-bit
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New user-defined object types are allocated on the heap and are ref-counted. Our ref-counting algorithm does *not* have a cycle collector. (See Wikipedia.)
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### Practical consequences
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This means that the following script will result in an out-of-memory error.
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![](/static/mb/object-disclaimer-0.png)
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```
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while (true) {
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let l = new List()
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l.next = l
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}
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```
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### How to avoid this?
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Don't do it. It's bad.
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