Propagate tag to SequenceStart event.

parser/src/parser.rs

@@ -55,6 +55,8 @@ pub enum Event {
     SequenceStart(
         /// The anchor ID of the start of the squence.
         usize,
+        /// An optional tag
+        Option<Tag>,
     ),
     SequenceEnd,
     MappingStart(
@@ -347,7 +349,7 @@ impl<T: Iterator<Item = char>> Parser<T> {
                 recv.on_event(first_ev, mark);
                 Ok(())
             }
-            Event::SequenceStart(_) => {
+            Event::SequenceStart(..) => {
                 recv.on_event(first_ev, mark);
                 self.load_sequence(recv)
             }
@@ -615,7 +617,7 @@ impl<T: Iterator<Item = char>> Parser<T> {
         match *self.peek_token()? {
             Token(mark, TokenType::BlockEntry) if indentless_sequence => {
                 self.state = State::IndentlessSequenceEntry;
-                Ok((Event::SequenceStart(anchor_id), mark))
+                Ok((Event::SequenceStart(anchor_id, tag), mark))
             }
             Token(_, TokenType::Scalar(..)) => {
                 self.pop_state();
@@ -627,7 +629,7 @@ impl<T: Iterator<Item = char>> Parser<T> {
             }
             Token(mark, TokenType::FlowSequenceStart) => {
                 self.state = State::FlowSequenceFirstEntry;
-                Ok((Event::SequenceStart(anchor_id), mark))
+                Ok((Event::SequenceStart(anchor_id, tag), mark))
             }
             Token(mark, TokenType::FlowMappingStart) => {
                 self.state = State::FlowMappingFirstKey;
@@ -635,7 +637,7 @@ impl<T: Iterator<Item = char>> Parser<T> {
             }
             Token(mark, TokenType::BlockSequenceStart) if block => {
                 self.state = State::BlockSequenceFirstEntry;
-                Ok((Event::SequenceStart(anchor_id), mark))
+                Ok((Event::SequenceStart(anchor_id, tag), mark))
             }
             Token(mark, TokenType::BlockMappingStart) if block => {
                 self.state = State::BlockMappingFirstKey;

parser/src/yaml.rs

@@ -91,7 +91,7 @@ impl MarkedEventReceiver for YamlLoader {
                     _ => unreachable!(),
                 }
             }
-            Event::SequenceStart(aid) => {
+            Event::SequenceStart(aid, _) => {
                 self.doc_stack.push((Yaml::Array(Vec::new()), aid));
             }
             Event::SequenceEnd => {
@@ -110,7 +110,11 @@ impl MarkedEventReceiver for YamlLoader {
             Event::Scalar(v, style, aid, tag) => {
                 let node = if style != TScalarStyle::Plain {
                     Yaml::String(v)
-                } else if let Some(Tag { ref handle, ref suffix }) = tag {
+                } else if let Some(Tag {
+                    ref handle,
+                    ref suffix,
+                }) = tag
+                {
                     // XXX tag:yaml.org,2002:
                     if handle == "!!" {
                         match suffix.as_ref() {

parser/tests/yaml-test-suite.rs

@@ -4,7 +4,7 @@ use libtest_mimic::{run_tests, Arguments, Outcome, Test};
 
 use yaml_rust::{
     parser::{Event, EventReceiver, Parser, Tag},
-    scanner::{TScalarStyle},
+    scanner::TScalarStyle,
     yaml, ScanError, Yaml, YamlLoader,
 };
 
@@ -145,7 +145,9 @@ impl EventReceiver for EventReporter {
             Event::DocumentStart => "+DOC".into(),
             Event::DocumentEnd => "-DOC".into(),
 
-            Event::SequenceStart(idx) => format!("+SEQ{}", format_index(idx)),
+            Event::SequenceStart(idx, tag) => {
+                format!("+SEQ{}{}", format_index(idx), format_tag(&tag))
+            }
             Event::SequenceEnd => "-SEQ".into(),
 
             Event::MappingStart(idx, tag) => {
@@ -301,12 +303,7 @@ fn expected_events(expected_tree: &str) -> Vec<String> {
 static EXPECTED_FAILURES: &[&str] = &[
     // These seem to be API limited (not enough information on the event stream level)
     // No tag available for SEQ and MAP
-    "35KP",
-    "57H4",
-    "6JWB",
     "C4HZ",
-    "EHF6",
-    "J7PZ",
     // Cannot resolve tag namespaces
     "5TYM",
     "6CK3",