Bubble up planning variables to the headline.

src/types/document.rs

@@ -4,6 +4,7 @@ use super::Element;
 use super::GetStandardProperties;
 use super::Object;
 use super::StandardProperties;
+use super::Timestamp;
 
 pub type PriorityCookie = u8;
 pub type HeadlineLevel = u16;
@@ -29,6 +30,9 @@ pub struct Heading<'s> {
     pub is_comment: bool,
     pub is_archived: bool,
     pub is_footnote_section: bool,
+    pub scheduled: Option<Timestamp<'s>>,
+    pub deadline: Option<Timestamp<'s>>,
+    pub closed: Option<Timestamp<'s>>,
 }
 
 #[derive(Debug)]

src/types/object.rs

@@ -182,7 +182,7 @@ pub struct Superscript<'s> {
     pub source: &'s str,
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Clone)]
 pub struct Timestamp<'s> {
     pub source: &'s str,
     pub timestamp_type: TimestampType,
@@ -195,7 +195,7 @@ pub struct Timestamp<'s> {
     pub warning_delay: Option<WarningDelay>,
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Clone)]
 pub enum TimestampType {
     Diary,
     Active,
@@ -204,7 +204,7 @@ pub enum TimestampType {
     InactiveRange,
 }
 
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Clone)]
 pub enum TimestampRangeType {
     None,
     DateRange,