diff --git a/.idea/misc.xml b/.idea/misc.xml
index 5fa0a85..fead741 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,6 +37,7 @@
+
diff --git a/.idea/rust.iml b/.idea/rust.iml
index 08adc04..32f1836 100644
--- a/.idea/rust.iml
+++ b/.idea/rust.iml
@@ -149,9 +149,14 @@
+
+
+
+
+
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 29a8446..24dcbe8 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,8 +2,6 @@
-
-
@@ -16,11 +14,28 @@
-
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+
+
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-
+
+
+
+
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@@ -54,8 +69,6 @@
@@ -138,12 +153,12 @@
+
-
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@@ -322,6 +331,12 @@
+
+
+
+
+
+
@@ -344,7 +359,7 @@
-
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@@ -358,24 +373,6 @@
-
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@@ -791,8 +788,30 @@
-
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+
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diff --git a/advanced_lifetimes/Cargo.toml b/advanced_lifetimes/Cargo.toml
new file mode 100644
index 0000000..ac48674
--- /dev/null
+++ b/advanced_lifetimes/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "advanced_lifetimes"
+version = "0.1.0"
+authors = ["Timothy Warren "]
+edition = "2018"
+
+[dependencies]
diff --git a/advanced_lifetimes/src/lib.rs b/advanced_lifetimes/src/lib.rs
new file mode 100644
index 0000000..754f8f9
--- /dev/null
+++ b/advanced_lifetimes/src/lib.rs
@@ -0,0 +1,26 @@
+struct Context<'s>(&'s str);
+
+// 's : 'c tells Rust that the 's lifetime is tied to the 'c lifetime
+struct Parser<'c, 's : 'c> {
+ context: &'c Context<'s>,
+}
+
+impl<'c, 's> Parser<'c, 's> {
+ fn parse(&self) -> Result<(), &'s str> {
+ Err(&self.context.0[1..])
+ }
+}
+
+fn parse_context(context: Context) -> Result<(), &str> {
+ Parser { context: &context }.parse()
+}
+
+struct Ref<'a, T: 'a>(&'a T);
+
+#[cfg(test)]
+mod tests {
+ #[test]
+ fn it_works() {
+ assert_eq!(2 + 2, 4);
+ }
+}
diff --git a/advanced_lifetimes/src/main.rs b/advanced_lifetimes/src/main.rs
new file mode 100644
index 0000000..c8be1c2
--- /dev/null
+++ b/advanced_lifetimes/src/main.rs
@@ -0,0 +1,19 @@
+trait Red {}
+
+struct Ball<'a> {
+ diameter: &'a i32,
+}
+
+impl<'a> Red for Ball<'a> {}
+
+struct StrWrap<'a>(&'a str);
+
+fn foo(string: &str) -> StrWrap<'_> { // Anonymous lifetime
+ StrWrap(string)
+}
+
+fn main() {
+ let num = 5;
+
+ let obj = Box::new(Ball { diameter: &num}) as Box;
+}