mirror of
https://github.com/typst/typst
synced 2025-05-14 04:56:26 +08:00
262 lines
4.6 KiB
Typst
262 lines
4.6 KiB
Typst
// Test let bindings.
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---
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// Automatically initialized with none.
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#let x
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#test(x, none)
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// Manually initialized with one.
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#let z = 1
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#test(z, 1)
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// Syntax sugar for function definitions.
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#let fill = conifer
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#let f(body) = rect(width: 2cm, fill: fill, inset: 5pt, body)
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#f[Hi!]
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---
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// Termination.
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// Terminated by line break.
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#let v1 = 1
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One
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// Terminated by semicolon.
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#let v2 = 2; Two
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// Terminated by semicolon and line break.
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#let v3 = 3;
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Three
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#test(v1, 1)
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#test(v2, 2)
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#test(v3, 3)
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---
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// Test parenthesised assignments.
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// Ref: false
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#let (a) = (1, 2)
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---
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// Ref: false
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// Simple destructuring.
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#let (a, b) = (1, 2)
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#test(a, 1)
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#test(b, 2)
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---
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// Ref: false
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#let (a,) = (1,)
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#test(a, 1)
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---
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// Ref: false
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// Destructuring with multiple placeholders.
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#let (a, _, c, _) = (1, 2, 3, 4)
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#test(a, 1)
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#test(c, 3)
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---
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// Ref: false
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// Destructuring with a sink.
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#let (a, b, ..c) = (1, 2, 3, 4, 5, 6)
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#test(a, 1)
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#test(b, 2)
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#test(c, (3, 4, 5, 6))
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---
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// Ref: false
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// Destructuring with a sink in the middle.
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#let (a, ..b, c) = (1, 2, 3, 4, 5, 6)
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#test(a, 1)
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#test(b, (2, 3, 4, 5))
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#test(c, 6)
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---
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// Ref: false
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// Destructuring with an empty sink.
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#let (..a, b, c) = (1, 2)
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#test(a, ())
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#test(b, 1)
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#test(c, 2)
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---
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// Ref: false
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// Destructuring with an empty sink.
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#let (a, ..b, c) = (1, 2)
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#test(a, 1)
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#test(b, ())
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#test(c, 2)
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---
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// Ref: false
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// Destructuring with an empty sink.
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#let (a, b, ..c) = (1, 2)
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#test(a, 1)
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#test(b, 2)
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#test(c, ())
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---
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// Ref: false
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// Destructuring with an empty sink and empty array.
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#let (..a) = ()
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#test(a, ())
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---
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// Ref: false
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// Destructuring with unnamed sink.
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#let (a, .., b) = (1, 2, 3, 4)
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#test(a, 1)
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#test(b, 4)
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// Error: 10-11 at most one binding per identifier is allowed
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#let (a, a) = (1, 2)
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// Error: 12-15 at most one destructuring sink is allowed
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#let (..a, ..a) = (1, 2)
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// Error: 12-13 at most one binding per identifier is allowed
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#let (a, ..a) = (1, 2)
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// Error: 13-14 at most one binding per identifier is allowed
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#let (a: a, a) = (a: 1, b: 2)
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// Error: 13-20 expected identifier, found function call
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#let (a, b: b.at(0)) = (a: 1, b: 2)
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// Error: 7-14 expected identifier or destructuring sink, found function call
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#let (a.at(0),) = (1,)
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---
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// Error: 13-14 not enough elements to destructure
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#let (a, b, c) = (1, 2)
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---
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// Error: 6-20 not enough elements to destructure
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#let (..a, b, c, d) = (1, 2)
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---
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// Error: 6-12 cannot destructure boolean
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#let (a, b) = true
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---
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// Ref: false
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// Simple destructuring.
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#let (a: a, b, x: c) = (a: 1, b: 2, x: 3)
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#test(a, 1)
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#test(b, 2)
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#test(c, 3)
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---
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// Ref: false
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// Destructuring with a sink.
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#let (a: _, ..b) = (a: 1, b: 2, c: 3)
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#test(b, (b: 2, c: 3))
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---
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// Ref: false
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// Destructuring with a sink in the middle.
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#let (a: _, ..b, c: _) = (a: 1, b: 2, c: 3)
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#test(b, (b: 2))
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---
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// Ref: false
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// Destructuring with an empty sink.
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#let (a: _, ..b) = (a: 1)
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#test(b, (:))
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---
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// Ref: false
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// Destructuring with an empty sink and empty dict.
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#let (..a) = (:)
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#test(a, (:))
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---
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// Ref: false
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// Destructuring with unnamed sink.
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#let (a, ..) = (a: 1, b: 2)
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#test(a, 1)
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---
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// Trailing placeholders.
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// Error: 10-11 not enough elements to destructure
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#let (a, _, _, _, _) = (1,)
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#test(a, 1)
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---
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// Error: 10-13 expected identifier, found string
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// Error: 18-19 expected identifier, found integer
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#let (a: "a", b: 2) = (a: 1, b: 2)
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---
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// Error: 10-11 dictionary does not contain key "b"
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#let (a, b) = (a: 1)
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---
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// Error: 10-11 dictionary does not contain key "b"
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#let (a, b: b) = (a: 1)
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---
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// Error: 7-11 cannot destructure named elements from an array
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#let (a: a, b) = (1, 2, 3)
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---
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// Error: 5 expected identifier
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#let
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// Error: 6 expected identifier
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#{let}
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// Error: 5 expected identifier
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// Error: 5 expected semicolon or line break
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#let "v"
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// Error: 7 expected semicolon or line break
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#let v 1
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// Error: 9 expected expression
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#let v =
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// Error: 5 expected identifier
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// Error: 5 expected semicolon or line break
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#let "v" = 1
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// Terminated because expression ends.
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// Error: 12 expected semicolon or line break
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#let v4 = 4 Four
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// Terminated by semicolon even though we are in a paren group.
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// Error: 18 expected expression
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// Error: 11-12 unclosed delimiter
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#let v5 = (1, 2 + ; Five
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// Error: 9-13 expected identifier, found boolean
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#let (..true) = false
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---
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#let _ = 4
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#for _ in range(2) []
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// Error: 2-3 unexpected underscore
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#_
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// Error: 8-9 unexpected underscore
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#lorem(_)
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// Error: 3-4 expected expression, found underscore
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#(_,)
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// Error: 3-4 expected expression, found underscore
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#{_}
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// Error: 8-9 expected expression, found underscore
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#{ 1 + _ }
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---
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// Error: 13 expected equals sign
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#let func(x)
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// Error: 15 expected expression
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#let func(x) =
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