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Revision d9570434

ID	d95704341280fc521dc2b16bbbc5858f6647e2c3

Added by Laszlo Ersek over 10 years ago

OptsVisitor: introduce basic list modes

We're going to need more state while processing a list of repeated
options. This change eliminates "repeated_opts_first" and adds a new state
variable:

list_mode       repeated_opts  repeated_opts_first
  --------------  -------------  -------------------
  LM_NONE         NULL           false
  LM_STARTED      non-NULL       true
  LM_IN_PROGRESS  non-NULL       false

Additionally, it is documented that lookup_scalar() and processed(), both
called by opts_type_XXX(), are invalid in LM_STARTED -- generated qapi
code calls opts_next_list() to allocate the very first link before trying
to parse a scalar into it. List mode restrictions are expressed in
positive / inclusive form.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>

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