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Merged
merged 2 commits into from
Jun 14, 2021
Merged

Update quotes.md #2047

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Update quotes.md
toddobryan May 23, 2021
7383d9d
Merge branch 'main' into patch-1
toddobryan Jun 11, 2021
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6 changes: 3 additions & 3 deletions _overviews/scala3-macros/tutorial/quotes.md
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ Intuitively, the code directly within the quote is not executed now, while the c

```scala
val msg = Expr("Hello")
val printHello = '{ print($hello) }
val printHello = '{ print($msg) }
println(printHello.show) // print("Hello")
```

Expand Down Expand Up @@ -45,8 +45,8 @@ def myBadCounter2(using Quotes): Expr[Int] = '{
${ x += 1; 'x }
}
```
Clearly, this should work as the variable does not exist yet.
To make sure you can only write programs that do not contain these kinds of problems we restrict the set of references to variable and other definitions.
Clearly, this should not work as the variable does not exist yet.
To make sure you cannot write programs that contain these kinds of problems, we restrict the set of references to variable and other definitions.

We introduce _levels_ as a count of the number of quotes minus the number of splices surrounding an expression or definition.

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