555ccdc024
In type position, parentheses now mirror value position: (T) (a single unnamed element, no trailing comma) is a GROUPING that resolves to the inner type; (T,) is a 1-tuple; (A, B) a 2-tuple; named (x: T) and spread (..Ts) stay tuples; (...) -> R stays a function type. This lets a closure/optional/function type be parenthesized for readability without silently becoming a 1-tuple: [1](Closure(i64,i64) -> i64) // array of closures (issue 0177) -> 7 ?(?i64) // genuine nested optional (issue 0165 intent) Parser: src/parser.zig returns the inner node for a single unnamed non-spread no-trailing-comma parenthesized type. formatTypeName (both generic.zig diagnostics + types.zig reflection) now render a 1-tuple as (T,) so the spelling is unambiguous and diagnostics are self-consistent. The 0165 coerce/stmt note reworded accordingly. specs.md §Type Syntax updated; basic/0036 wrap return -> (i64,); obsolete diagnostic 1195 removed (?(?i64) now compiles); regression examples/types/0201-types-parenthesized-type-grouping.sx added; 0414 .ir golden regenerated for the (T,) rendering. Resolves 0177; updates 0165/0170. Verified by 3 adversarial reviews; suite 792/0.
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
#import "modules/std.sx";
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#import "modules/math";
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#import "modules/build.sx";
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#import "modules/std/test.sx";
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pkg :: #import "tests/fixtures/testpkg";
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main :: () {
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// --- UFCS Aliases & Pipe ---
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{
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print("=== UFCS Aliases ===\n");
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num_sum :: (a: i64, b: i64) -> i64 { a + b }
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sum :: ufcs num_sum;
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print("{}\n", num_sum(40, 2)); // 42 — direct call
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print("{}\n", sum(40, 2)); // 42 — alias direct call
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print("{}\n", 40 |> sum(2)); // 42 — pipe UFCS via alias
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print("{}\n", num_sum(40, 2)); // 42 — direct (was tuple full-splat)
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print("{}\n", 40 |> sum(2)); // 42 — pipe (was tuple partial-splat)
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compute :: (a: i64, b: i64, c: i64, d: i64) -> i64 { a + b * c - d }
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calc :: ufcs compute;
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print("{}\n", compute(1, 2, 3, 4)); // 1+2*3-4 = 3 (was tuple full-splat)
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print("{}\n", compute(1, 2, 3, 4)); // same = 3 (was tuple partial-splat)
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print("{}\n", 1 |> calc(2, 3, 4)); // same = 3 — pipe UFCS
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// Tuple return type
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swap :: (a: i64, b: i64) -> (i64, i64) { (b, a) }
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s := swap(1, 2);
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a := s.0;
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b := s.1;
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print("{}\n", a); // 2
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print("{}\n", b); // 1
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wrap :: (x: i64) -> (i64,) { (x,) } // 1-tuple needs trailing comma; (i64) groups
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t := wrap(99);
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print("{}\n", t.0); // 99
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}
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}
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