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pub use crate::{
client::{auth::*, options::*},
coll::options::*,
collation::*,
concern::*,
db::options::*,
selection_criteria::*,
};
macro_rules! resolve_options {
($obj:expr, $opts:expr, [$( $field:ident ),+] ) => {
$(
if let Some(option) = $obj.$field() {
if !$opts
.as_ref()
.map(|opts| opts.$field.is_some())
.unwrap_or(false)
{
$opts.get_or_insert_with(Default::default).$field = Some(option.clone());
}
}
)+
};
}
macro_rules! merge_options {
($src:expr, $dst:expr, [$( $field:ident ),+] ) => {
$(
if let Some(ref option) = $src.$field {
if !$dst.$field.is_some() {
$dst.$field = Some(option.clone());
}
}
)+
};
}
macro_rules! resolve_read_concern_with_session {
($obj:expr, $opts:expr, $session:expr) => {{
resolve_rw_concern_with_session!($obj, $opts, $session, read_concern, "read")
}};
}
macro_rules! resolve_write_concern_with_session {
($obj:expr, $opts:expr, $session:expr) => {{
resolve_rw_concern_with_session!($obj, $opts, $session, write_concern, "write")
}};
}
macro_rules! resolve_rw_concern_with_session {
($obj:expr, $opts:expr, $session:expr, $concern:ident, $name:expr) => {{
if let Some(session) = $session {
match session.transaction.state {
TransactionState::Starting | TransactionState::InProgress => {
if $opts
.as_ref()
.map(|opts| opts.$concern.is_some())
.unwrap_or(false)
{
return Err(ErrorKind::InvalidArgument {
message: format!(
"Cannot set {} concern after starting a transaction",
$name
),
}
.into());
}
}
_ => {
resolve_options!($obj, $opts, [$concern]);
}
}
} else {
resolve_options!($obj, $opts, [$concern]);
}
let result: Result<()> = Ok(());
result
}};
}
macro_rules! resolve_selection_criteria_with_session {
($obj:expr, $opts:expr, $session:expr) => {{
if let Some(session) = $session {
match session.transaction.state {
TransactionState::Starting | TransactionState::InProgress => {
if let Some(ref options) = session.transaction.options {
if let Some(ref selection_criteria) = options.selection_criteria {
if $opts
.as_ref()
.map(|opts| opts.selection_criteria.is_none())
.unwrap_or(true)
{
$opts
.get_or_insert_with(Default::default)
.selection_criteria = Some(selection_criteria.clone());
}
}
}
}
_ => {
resolve_options!($obj, $opts, [selection_criteria]);
}
}
} else {
resolve_options!($obj, $opts, [selection_criteria]);
}
let result: Result<()> = Ok(());
result
}};
}