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for loops over arrays

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Karol Stasiak
2020-07-24 19:11:27 +02:00
parent 9a47c66539
commit d5367cc1fe
12 changed files with 207 additions and 39 deletions
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docs/lang/syntax.md
+9
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@@ -371,12 +371,18 @@ for <variable> , <start> , <direction> , <end> {
}
for <variable> : <enum type> {
}
for <variable> : <array> {
}
for <variable> , <variable2> : <array> {
}
for <variable> : [ <comma separated expressions> ] {
}
```
* `<variable>` – an already defined numeric variable
* `<variable2>` – an already defined numeric variable
* `<direction>` – the type of range to traverse:
* `to` – from `<start>` inclusive to `<end>` inclusive, in ascending order
@@ -411,6 +417,9 @@ for <variable> : [ <comma separated expressions> ] {
* `<enum type>` – traverse enum constants of given type, in arbitrary order
* `<array>` – traverse array contents, in arbitrary order,
assigning the index to `<variable>` and either the element or the pointer to the element to `<variable2>`
* `<comma separated expressions>` – traverse every value in the list, in the given order.
Values do not have to be constant.
If a value is not a constant and its value changes while executing the loop, the behaviour is undefined.