InlineSiteSymIterator

pub const InlineSiteSymIterator = struct {
    module_index: usize,
    offset: usize,
    end: usize,

    const empty: InlineSiteSymIterator = .{
        .module_index = 0,
        .offset = 0,
        .end = 0,
    };

    pub fn next(iter: *InlineSiteSymIterator, module: *Module) ?*align(1) pdb.InlineSiteSym {
        while (iter.offset < iter.end) {
            const inline_prefix: *align(1) pdb.RecordPrefix = @ptrCast(&module.symbols[iter.offset]);
            const end = iter.offset + inline_prefix.record_len + @sizeOf(u16);
            if (end > iter.end) return null;
            defer iter.offset = end;
            switch (inline_prefix.record_kind) {
                // Skip nested procedures
                .lproc32,
                .lproc32_st,
                .gproc32,
                .gproc32_st,
                .lproc32_id,
                .gproc32_id,
                .lproc32_dpc,
                .lproc32_dpc_id,
                => {
                    const skip: *align(1) pdb.ProcSym = @ptrCast(inline_prefix);
                    iter.offset = skip.end;
                },
                .inlinesite,
                .inlinesite2,
                => return @ptrCast(inline_prefix),
                else => {},
            }
        }

        return null;
    }
}