Serendipity
c8da286d31
fn swap(out x: i64, out y: i64) 声明 out 参数，codegen 层面 函数签名变为 T* 指针，调用点自动传 &variable 地址。 in 是默认行为（值传递），无需显式标注。 Token → Parser → Sema → Codegen 全流水线: - TOK_OUT + "out" 关键字注册 - AST parameter.is_out 字段 - parse_function 解析 out 前缀 - Sema: out 参数注册为 SYM_VARIABLE+is_mut（可赋值） - Codegen: LLVM 函数签名使用 T*，调用点传 alloca Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
23 lines
350 B
Common Lisp
23 lines
350 B
Common Lisp
// out 参数测试 — 引用传递
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fn swap(out x: i64, out y: i64) -> void {
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let t = x;
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x = y;
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y = t;
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}
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fn increment(out x: i64) -> void {
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x = x + 1;
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}
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fn main() -> void {
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let a = 10;
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let b = 20;
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print_i64(a);
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print_i64(b);
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swap(a, b);
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print_i64(a);
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print_i64(b);
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increment(a);
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print_i64(a);
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}
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