56 lines
1.3 KiB
Typst
56 lines
1.3 KiB
Typst
// Test recursive function calls.
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--- recursion-named ---
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// Test with named function.
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#let fib(n) = {
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if n <= 2 {
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1
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} else {
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fib(n - 1) + fib(n - 2)
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}
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}
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#test(fib(10), 55)
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--- recursion-unnamed-invalid ---
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// Test with unnamed function.
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// Error: 17-18 unknown variable: f
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#let f = (n) => f(n - 1)
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#f(10)
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--- recursion-named-returns-itself ---
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// Test capturing with named function.
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#let f = 10
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#let f() = f
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#test(type(f()), function)
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--- recursion-unnamed-does-not-return-itself ---
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// Test capturing with unnamed function.
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#let f = 10
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#let f = () => f
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#test(type(f()), int)
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--- recursion-shadowing ---
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// Test redefinition.
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#let f(x) = "hello"
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#let f(x) = if x != none { f(none) } else { "world" }
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#test(f(1), "world")
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--- recursion-maximum-depth ---
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// Error: 15-21 maximum function call depth exceeded
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#let rec(n) = rec(n) + 1
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#rec(1)
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--- recursion-via-include-in-layout ---
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// Test cyclic imports during layout.
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// Error: 2-38 maximum show rule depth exceeded
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// Hint: 2-38 check whether the show rule matches its own output
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#layout(_ => include "recursion.typ")
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--- recursion-show-math ---
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// Test recursive show rules.
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// Error: 22-25 maximum show rule depth exceeded
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// Hint: 22-25 check whether the show rule matches its own output
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#show math.equation: $x$
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$ x $
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