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checker: allow int alias to be used as array len and cap #23272

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merged 3 commits into from
Dec 26, 2024
Merged

checker: allow int alias to be used as array len and cap #23272

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cc8bead
checker: warn on unused imported functions used via `import math { si…
Delta456 Nov 2, 2023
e2512da
Revert "checker: warn on unused imported functions used via `import m…
Delta456 Nov 2, 2023
a478c45
checker: allow int alias to be used as array len and cap
Delta456 Dec 25, 2024
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2 changes: 1 addition & 1 deletion vlib/v/checker/containers.v
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Original file line number Diff line number Diff line change
Expand Up @@ -312,7 +312,7 @@ fn (mut c Checker) check_array_init_default_expr(mut node ast.ArrayInit) {
}

fn (mut c Checker) check_array_init_para_type(para string, mut expr ast.Expr, pos token.Pos) {
sym := c.table.sym(c.unwrap_generic(c.expr(mut expr)))
sym := c.table.final_sym(c.unwrap_generic(c.expr(mut expr)))
if sym.kind !in [.int, .int_literal] {
c.error('array ${para} needs to be an int', pos)
}
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7 changes: 7 additions & 0 deletions vlib/v/tests/array_len_int_alias_test.v
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
type Test = int

fn test_array_len_int_alias() {
x := Test(12)
arr := []int{len: x}
assert arr.len == 12
}
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