7f2b8b5cde
checkCallArity compares the supplied count against the declared params (min = params without trailing defaults, max = params.len, unbounded past a variadic) at the five plain dispatch sites in lowerCall — bare selected-author + lazy, namespace alias-gate + qualified, struct method, ufcs. Pack / comptime / generic / #compiler / #builtin callees keep their own dispatch. The method/ufcs sites also gain the appendDefaultArgs fill the generic-instance leg already had, so trailing defaults work on dot-calls instead of emitting under-arity calls. lowerStmt's local fn_decl arm now registers a pointer into the AST node in fn_ast_map, not a stack temporary that aliased every later local fn.
34 lines
1.1 KiB
Plaintext
34 lines
1.1 KiB
Plaintext
// Trailing parameter defaults fill on method and ufcs dot-calls (the
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// receiver-prepending dispatch paths), matching bare-call expansion (0044);
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// a `#caller_location` default and a slice variadic keep their flexible
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// arity under the call-arity check.
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// Regression (issue 0123).
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#import "modules/std.sx";
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Point :: struct {
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x: s64;
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scaled :: (self: Point, k: s64 = 2) -> s64 { return self.x * k; }
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}
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bump :: ufcs (p: Point, by: s64 = 10) -> s64 { return p.x + by; }
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sum_var :: (..xs: []s64) -> s64 {
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t := 0;
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for xs (x) { t = t + x; }
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return t;
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}
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here :: (loc: Source_Location = #caller_location) -> s64 { return loc.line; }
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main :: () {
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p := Point.{ x = 5 };
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print("{}\n", p.scaled()); // default filled on method dispatch
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print("{}\n", p.scaled(3)); // explicit overrides
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print("{}\n", p.bump()); // default filled on ufcs dispatch
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print("{}\n", p.bump(1));
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print("{}\n", sum_var()); // variadic: zero args
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print("{}\n", sum_var(1, 2, 3)); // variadic: many args
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print("{}\n", here() > 0); // #caller_location default
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}
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