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Add non-failing dispatch load function

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This commit is contained in:
Robin Voetter
2021-12-08 23:48:49 +01:00
parent d1e949a434
commit d9a57859c6
2 changed files with 21 additions and 11 deletions
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24
generator/vulkan/render.zig
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@@ -1053,26 +1053,34 @@ fn Renderer(comptime WriterType: type) type {
.device => "device: Device, loader: anytype",
};
const loader_first_param = switch (dispatch_type) {
.base => ".null_handle, ",
.instance => "instance, ",
.device => "device, ",
const loader_first_arg = switch (dispatch_type) {
.base => "Instance.null_handle",
.instance => "instance",
.device => "device",
};
@setEvalBranchQuota(2000);
try self.writer.print(
\\pub fn load({s}) !Self {{
\\pub fn load({[params]s}) error{{CommandLoadFailure}}!Self {{
\\ var self: Self = undefined;
\\ inline for (std.meta.fields(Dispatch)) |field| {{
\\ const name = @ptrCast([*:0]const u8, field.name ++ "\x00");
\\ const cmd_ptr = loader({s}name) orelse return error.CommandLoadFailure;
\\ const cmd_ptr = loader({[first_arg]s}, name) orelse return error.CommandLoadFailure;
\\ @field(self.dispatch, field.name) = @ptrCast(field.field_type, cmd_ptr);
\\ }}
\\ return self;
\\}}
\\
, .{ params, loader_first_param });
\\pub fn loadNoFail({[params]s}) Self {{
\\ var self: Self = undefined;
\\ inline for (std.meta.fields(Dispatch)) |field| {{
\\ const name = @ptrCast([*:0]const u8, field.name ++ "\x00");
\\ const cmd_ptr = loader({[first_arg]s}, name) orelse undefined;
\\ @field(self.dispatch, field.name) = @ptrCast(field.field_type, cmd_ptr);
\\ }}
\\ return self;
\\}}
, .{ .params = params, .first_arg = loader_first_arg });
}
fn derefName(name: []const u8) []const u8 {