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Nullable pointer parameters

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For procedure parameters which are of pointer type: if the associated
`count` parameter is marked `optional` in the XML, this commit makes the
parameter pointer type nullable.
This commit is contained in:
Peter Lef
2023-07-10 10:59:11 -04:00
parent 086276bd05
commit c7d3723710
3 changed files with 15 additions and 1 deletions
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13
generator/vulkan/parse.zig
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@@ -278,7 +278,7 @@ fn lenToPointer(fields: Fields, len: []const u8) std.meta.Tuple(&.{ registry.Poi
for (params) |*param| {
if (mem.eql(u8, param.name, len)) {
param.is_buffer_len = true;
return .{ .{ .other_field = param.name }, false };
return .{ .{ .other_field = param.name }, param.is_optional };
}
}
},
@@ -499,7 +499,18 @@ fn parseCommand(allocator: Allocator, elem: *xml.Element, api: registry.Api) !re
.name = decl.name,
.param_type = decl.decl_type.typedef,
.is_buffer_len = false,
.is_optional = false,
};
if (param.getAttribute("optional")) |optionals| {
var optional_it = mem.split(u8, optionals, ",");
if (optional_it.next()) |first_optional| {
params[i].is_optional = mem.eql(u8, first_optional, "true");
} else {
// Optional is empty, probably incorrect.
return error.InvalidRegistry;
}
}
i += 1;
}