Function unsafe_libyaml::yaml_emitter_emit
source · pub unsafe fn yaml_emitter_emit(
emitter: *mut yaml_emitter_t,
event: *mut yaml_event_t
) -> SuccessExpand description
Emit an event.
The event object may be generated using the yaml_parser_parse() function. The emitter takes the responsibility for the event object and destroys its content after it is emitted. The event object is destroyed even if the function fails.
Examples found in repository?
src/dumper.rs (line 38)
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pub unsafe fn yaml_emitter_open(mut emitter: *mut yaml_emitter_t) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
__assert!(!emitter.is_null());
__assert!(!(*emitter).opened);
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_STREAM_START_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.stream_start.encoding = YAML_ANY_ENCODING;
if yaml_emitter_emit(emitter, event).fail {
return FAIL;
}
(*emitter).opened = true;
OK
}
/// Finish a YAML stream.
///
/// This function should be used after yaml_emitter_dump() is called.
pub unsafe fn yaml_emitter_close(mut emitter: *mut yaml_emitter_t) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
__assert!(!emitter.is_null());
__assert!((*emitter).opened);
if (*emitter).closed {
return OK;
}
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_STREAM_END_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
if yaml_emitter_emit(emitter, event).fail {
return FAIL;
}
(*emitter).closed = true;
OK
}
/// Emit a YAML document.
///
/// The documen object may be generated using the yaml_parser_load() function or
/// the yaml_document_initialize() function. The emitter takes the
/// responsibility for the document object and destroys its content after it is
/// emitted. The document object is destroyed even if the function fails.
pub unsafe fn yaml_emitter_dump(
emitter: *mut yaml_emitter_t,
document: *mut yaml_document_t,
) -> Success {
let current_block: u64;
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
__assert!(!emitter.is_null());
__assert!(!document.is_null());
let fresh0 = addr_of_mut!((*emitter).document);
*fresh0 = document;
if !(*emitter).opened {
if yaml_emitter_open(emitter).fail {
current_block = 5018439318894558507;
} else {
current_block = 15619007995458559411;
}
} else {
current_block = 15619007995458559411;
}
match current_block {
15619007995458559411 => {
if STACK_EMPTY!((*document).nodes) {
if yaml_emitter_close(emitter).ok {
yaml_emitter_delete_document_and_anchors(emitter);
return OK;
}
} else {
__assert!((*emitter).opened);
let fresh1 = addr_of_mut!((*emitter).anchors);
*fresh1 = yaml_malloc(
(size_of::<yaml_anchors_t>() as libc::c_ulong)
.wrapping_mul((*document).nodes.top.c_offset_from((*document).nodes.start)
as libc::c_long as libc::c_ulong),
) as *mut yaml_anchors_t;
memset(
(*emitter).anchors as *mut libc::c_void,
0,
(size_of::<yaml_anchors_t>() as libc::c_ulong)
.wrapping_mul((*document).nodes.top.c_offset_from((*document).nodes.start)
as libc::c_long as libc::c_ulong),
);
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_DOCUMENT_START_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.document_start.version_directive = (*document).version_directive;
(*event).data.document_start.tag_directives.start =
(*document).tag_directives.start;
(*event).data.document_start.tag_directives.end = (*document).tag_directives.end;
(*event).data.document_start.implicit = (*document).start_implicit;
if yaml_emitter_emit(emitter, event).ok {
yaml_emitter_anchor_node(emitter, 1);
if yaml_emitter_dump_node(emitter, 1).ok {
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_DOCUMENT_END_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.document_end.implicit = (*document).end_implicit;
if yaml_emitter_emit(emitter, event).ok {
yaml_emitter_delete_document_and_anchors(emitter);
return OK;
}
}
}
}
}
_ => {}
}
yaml_emitter_delete_document_and_anchors(emitter);
FAIL
}
unsafe fn yaml_emitter_delete_document_and_anchors(mut emitter: *mut yaml_emitter_t) {
let mut index: libc::c_int;
if (*emitter).anchors.is_null() {
yaml_document_delete((*emitter).document);
let fresh2 = addr_of_mut!((*emitter).document);
*fresh2 = ptr::null_mut::<yaml_document_t>();
return;
}
index = 0;
while (*(*emitter).document)
.nodes
.start
.wrapping_offset(index as isize)
< (*(*emitter).document).nodes.top
{
let mut node: yaml_node_t = *(*(*emitter).document)
.nodes
.start
.wrapping_offset(index as isize);
if !(*(*emitter).anchors.wrapping_offset(index as isize)).serialized {
yaml_free(node.tag as *mut libc::c_void);
if node.type_ == YAML_SCALAR_NODE {
yaml_free(node.data.scalar.value as *mut libc::c_void);
}
}
if node.type_ == YAML_SEQUENCE_NODE {
STACK_DEL!(node.data.sequence.items);
}
if node.type_ == YAML_MAPPING_NODE {
STACK_DEL!(node.data.mapping.pairs);
}
index += 1;
}
STACK_DEL!((*(*emitter).document).nodes);
yaml_free((*emitter).anchors as *mut libc::c_void);
let fresh6 = addr_of_mut!((*emitter).anchors);
*fresh6 = ptr::null_mut::<yaml_anchors_t>();
(*emitter).last_anchor_id = 0;
let fresh7 = addr_of_mut!((*emitter).document);
*fresh7 = ptr::null_mut::<yaml_document_t>();
}
unsafe fn yaml_emitter_anchor_node_sub(emitter: *mut yaml_emitter_t, index: libc::c_int) {
(*((*emitter).anchors).offset((index - 1) as isize)).references += 1;
if (*(*emitter).anchors.offset((index - 1) as isize)).references == 2 {
(*emitter).last_anchor_id += 1;
(*(*emitter).anchors.offset((index - 1) as isize)).anchor = (*emitter).last_anchor_id;
}
}
unsafe fn yaml_emitter_anchor_node(emitter: *mut yaml_emitter_t, index: libc::c_int) {
let node: *mut yaml_node_t = (*(*emitter).document)
.nodes
.start
.wrapping_offset(index as isize)
.wrapping_offset(-1_isize);
let mut item: *mut yaml_node_item_t;
let mut pair: *mut yaml_node_pair_t;
let fresh8 =
addr_of_mut!((*((*emitter).anchors).wrapping_offset((index - 1) as isize)).references);
*fresh8 += 1;
if (*(*emitter).anchors.wrapping_offset((index - 1) as isize)).references == 1 {
match (*node).type_ {
YAML_SEQUENCE_NODE => {
item = (*node).data.sequence.items.start;
while item < (*node).data.sequence.items.top {
yaml_emitter_anchor_node_sub(emitter, *item);
item = item.wrapping_offset(1);
}
}
YAML_MAPPING_NODE => {
pair = (*node).data.mapping.pairs.start;
while pair < (*node).data.mapping.pairs.top {
yaml_emitter_anchor_node_sub(emitter, (*pair).key);
yaml_emitter_anchor_node_sub(emitter, (*pair).value);
pair = pair.wrapping_offset(1);
}
}
_ => {}
}
} else if (*(*emitter).anchors.wrapping_offset((index - 1) as isize)).references == 2 {
let fresh9 = addr_of_mut!((*emitter).last_anchor_id);
*fresh9 += 1;
(*(*emitter).anchors.wrapping_offset((index - 1) as isize)).anchor = *fresh9;
}
}
unsafe fn yaml_emitter_generate_anchor(
_emitter: *mut yaml_emitter_t,
anchor_id: libc::c_int,
) -> *mut yaml_char_t {
let anchor: *mut yaml_char_t = yaml_malloc(16_u64) as *mut yaml_char_t;
write!(WriteToPtr::new(anchor), "id{:03}\0", anchor_id);
anchor
}
unsafe fn yaml_emitter_dump_node(emitter: *mut yaml_emitter_t, index: libc::c_int) -> Success {
let node: *mut yaml_node_t = (*(*emitter).document)
.nodes
.start
.wrapping_offset(index as isize)
.wrapping_offset(-1_isize);
let anchor_id: libc::c_int = (*(*emitter).anchors.wrapping_offset((index - 1) as isize)).anchor;
let mut anchor: *mut yaml_char_t = ptr::null_mut::<yaml_char_t>();
if anchor_id != 0 {
anchor = yaml_emitter_generate_anchor(emitter, anchor_id);
}
if (*(*emitter).anchors.wrapping_offset((index - 1) as isize)).serialized {
return yaml_emitter_dump_alias(emitter, anchor);
}
(*(*emitter).anchors.wrapping_offset((index - 1) as isize)).serialized = true;
match (*node).type_ {
YAML_SCALAR_NODE => yaml_emitter_dump_scalar(emitter, node, anchor),
YAML_SEQUENCE_NODE => yaml_emitter_dump_sequence(emitter, node, anchor),
YAML_MAPPING_NODE => yaml_emitter_dump_mapping(emitter, node, anchor),
_ => __assert!(false),
}
}
unsafe fn yaml_emitter_dump_alias(
emitter: *mut yaml_emitter_t,
anchor: *mut yaml_char_t,
) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_ALIAS_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.alias.anchor = anchor;
yaml_emitter_emit(emitter, event)
}
unsafe fn yaml_emitter_dump_scalar(
emitter: *mut yaml_emitter_t,
node: *mut yaml_node_t,
anchor: *mut yaml_char_t,
) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
let plain_implicit = strcmp(
(*node).tag as *mut libc::c_char,
b"tag:yaml.org,2002:str\0" as *const u8 as *const libc::c_char,
) == 0;
let quoted_implicit = strcmp(
(*node).tag as *mut libc::c_char,
b"tag:yaml.org,2002:str\0" as *const u8 as *const libc::c_char,
) == 0;
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_SCALAR_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.scalar.anchor = anchor;
(*event).data.scalar.tag = (*node).tag;
(*event).data.scalar.value = (*node).data.scalar.value;
(*event).data.scalar.length = (*node).data.scalar.length;
(*event).data.scalar.plain_implicit = plain_implicit;
(*event).data.scalar.quoted_implicit = quoted_implicit;
(*event).data.scalar.style = (*node).data.scalar.style;
yaml_emitter_emit(emitter, event)
}
unsafe fn yaml_emitter_dump_sequence(
emitter: *mut yaml_emitter_t,
node: *mut yaml_node_t,
anchor: *mut yaml_char_t,
) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
let implicit = strcmp(
(*node).tag as *mut libc::c_char,
b"tag:yaml.org,2002:seq\0" as *const u8 as *const libc::c_char,
) == 0;
let mut item: *mut yaml_node_item_t;
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_SEQUENCE_START_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.sequence_start.anchor = anchor;
(*event).data.sequence_start.tag = (*node).tag;
(*event).data.sequence_start.implicit = implicit;
(*event).data.sequence_start.style = (*node).data.sequence.style;
if yaml_emitter_emit(emitter, event).fail {
return FAIL;
}
item = (*node).data.sequence.items.start;
while item < (*node).data.sequence.items.top {
if yaml_emitter_dump_node(emitter, *item).fail {
return FAIL;
}
item = item.wrapping_offset(1);
}
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_SEQUENCE_END_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
yaml_emitter_emit(emitter, event)
}
unsafe fn yaml_emitter_dump_mapping(
emitter: *mut yaml_emitter_t,
node: *mut yaml_node_t,
anchor: *mut yaml_char_t,
) -> Success {
let mut event = MaybeUninit::<yaml_event_t>::uninit();
let event = event.as_mut_ptr();
let mark = yaml_mark_t {
index: 0_u64,
line: 0_u64,
column: 0_u64,
};
let implicit = strcmp(
(*node).tag as *mut libc::c_char,
b"tag:yaml.org,2002:map\0" as *const u8 as *const libc::c_char,
) == 0;
let mut pair: *mut yaml_node_pair_t;
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_MAPPING_START_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
(*event).data.mapping_start.anchor = anchor;
(*event).data.mapping_start.tag = (*node).tag;
(*event).data.mapping_start.implicit = implicit;
(*event).data.mapping_start.style = (*node).data.mapping.style;
if yaml_emitter_emit(emitter, event).fail {
return FAIL;
}
pair = (*node).data.mapping.pairs.start;
while pair < (*node).data.mapping.pairs.top {
if yaml_emitter_dump_node(emitter, (*pair).key).fail {
return FAIL;
}
if yaml_emitter_dump_node(emitter, (*pair).value).fail {
return FAIL;
}
pair = pair.wrapping_offset(1);
}
memset(
event as *mut libc::c_void,
0,
size_of::<yaml_event_t>() as libc::c_ulong,
);
(*event).type_ = YAML_MAPPING_END_EVENT;
(*event).start_mark = mark;
(*event).end_mark = mark;
yaml_emitter_emit(emitter, event)
}