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compiler: audit uses of ptr.addr in the frontend

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This commit also performs some refactors to `TypedValue.print` in
preparation for improved comptime pointer access logic. Once that logic
exists, `TypedValue.print` can use Sema to access pointers for more
helpful printing.

This commit also implements proposal #19435, because the existing logic
there relied on some blatantly incorrect code in `Value.sliceLen`.

Resolves: #19435
This commit is contained in:
mlugg
2024-03-26 03:56:54 +00:00
parent 884d957b6c
commit 152a2ceaf7
4 changed files with 407 additions and 468 deletions
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test/behavior/basic.zig
-25
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@@ -693,31 +693,6 @@ test "string concatenation" {
try expect(b[len] == 0);
}
fn manyptrConcat(comptime s: [*:0]const u8) [*:0]const u8 {
return "very " ++ s;
}
test "comptime manyptr concatenation" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
const s = "epic";
const actual = manyptrConcat(s);
const expected = "very epic";
const len = mem.len(actual);
const len_with_null = len + 1;
{
var i: u32 = 0;
while (i < len_with_null) : (i += 1) {
try expect(actual[i] == expected[i]);
}
}
try expect(actual[len] == 0);
try expect(expected[len] == 0);
}
test "result location is optional inside error union" {
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO