28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
// `cast(T) expr` accepts any compile-time-resolvable type argument,
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// including compound shapes: `*T`, `[*]T`, `?T`, `[]T`. The same lowering
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// makes a compound type literal a first-class `Type` value in expression
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// position (`t : Type = *s64;`), mirroring named types (`t : Type = f64;`).
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// Regression (issue 0118): compound casts fell into the runtime-dispatch
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// path and died with "unresolved 'unknown_expr'".
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#import "modules/std.sx";
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main :: () {
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x := 42;
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p : *s64 = @x;
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q : *s64 = cast(*s64) p; // no-op pointer cast
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print("a: {}\n", q.*);
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addr : s64 = xx p;
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r : *s64 = cast(*s64) addr; // int → ptr through compound cast
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print("b: {}\n", r.*);
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mp : [*]s64 = cast([*]s64) p; // ptr → many-pointer
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print("c: {}\n", mp[0]);
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o : ?s32 = cast(?s32) 7; // optional wrap
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print("d: {}\n", o ?? -1);
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arr := .[1, 2, 3];
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s : []s64 = cast([]s64) arr; // array → slice
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print("e: {} {}\n", s.len, s[2]);
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t : Type = *s64; // first-class compound Type value
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print("f: {}\n", type_name(t));
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}
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