Vendor things

third-party/vendor/valuable/examples/derive.rs

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+use valuable::Valuable;
+
+use std::collections::HashMap;
+
+// `Debug` not implemented for struct, the debug implementation is going via
+// valuable.
+#[derive(Valuable)]
+struct Person {
+    name: String,
+    age: u8,
+    phones: Vec<String>,
+    favorites: HashMap<String, String>,
+}
+
+fn main() {
+    let mut p = Person {
+        name: "John Doe".to_string(),
+        age: 42,
+        phones: vec!["876-5309".to_string()],
+        favorites: HashMap::new(),
+    };
+
+    p.favorites.insert("color".to_string(), "blue".to_string());
+
+    println!("{:#?}", p.as_value());
+}

third-party/vendor/valuable/examples/hello_world.rs

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+use valuable::*;
+
+struct HelloWorld {
+    hello: &'static str,
+    world: World,
+}
+
+struct World {
+    answer: usize,
+}
+
+static HELLO_WORLD_FIELDS: &[NamedField<'static>] =
+    &[NamedField::new("hello"), NamedField::new("world")];
+
+impl Structable for HelloWorld {
+    fn definition(&self) -> StructDef<'_> {
+        StructDef::new_static("HelloWorld", Fields::Named(HELLO_WORLD_FIELDS))
+    }
+}
+
+impl Valuable for HelloWorld {
+    fn as_value(&self) -> Value<'_> {
+        Value::Structable(self)
+    }
+
+    fn visit(&self, v: &mut dyn Visit) {
+        v.visit_named_fields(&NamedValues::new(
+            HELLO_WORLD_FIELDS,
+            &[Value::String(self.hello), Value::Structable(&self.world)],
+        ));
+    }
+}
+
+static WORLD_FIELDS: &[NamedField<'static>] = &[NamedField::new("answer")];
+
+impl Valuable for World {
+    fn as_value(&self) -> Value<'_> {
+        Value::Structable(self)
+    }
+
+    fn visit(&self, v: &mut dyn Visit) {
+        v.visit_named_fields(&NamedValues::new(
+            WORLD_FIELDS,
+            &[Value::Usize(self.answer)],
+        ));
+    }
+}
+
+impl Structable for World {
+    fn definition(&self) -> StructDef<'_> {
+        StructDef::new_static("World", Fields::Named(WORLD_FIELDS))
+    }
+}
+
+fn main() {
+    let hello_world = HelloWorld {
+        hello: "wut",
+        world: World { answer: 42 },
+    };
+
+    let value = Value::Structable(&hello_world);
+    println!("{:#?}", value);
+
+    let slice = &[1, 2, 3][..];
+
+    let value = &slice as &dyn Valuable;
+    println!("{:?}", value);
+}

third-party/vendor/valuable/examples/print.rs

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+use valuable::{NamedValues, Valuable, Value, Visit};
+
+struct Print(String);
+
+impl Print {
+    fn indent(&self) -> Print {
+        Print(format!("{}    ", self.0))
+    }
+}
+
+impl Visit for Print {
+    fn visit_value(&mut self, value: Value<'_>) {
+        match value {
+            Value::Structable(v) => {
+                let def = v.definition();
+                // Print the struct name
+                println!("{}{}:", self.0, def.name());
+
+                // Visit fields
+                let mut visit = self.indent();
+                v.visit(&mut visit);
+            }
+            Value::Enumerable(v) => {
+                let def = v.definition();
+                let variant = v.variant();
+                // Print the enum name
+                println!("{}{}::{}:", self.0, def.name(), variant.name());
+
+                // Visit fields
+                let mut visit = self.indent();
+                v.visit(&mut visit);
+            }
+            Value::Listable(v) => {
+                println!("{}", self.0);
+
+                // Visit fields
+                let mut visit = self.indent();
+                v.visit(&mut visit);
+            }
+            Value::Mappable(v) => {
+                println!("{}", self.0);
+
+                // Visit fields
+                let mut visit = self.indent();
+                v.visit(&mut visit);
+            }
+            // Primitive or unknown type, just render Debug
+            v => println!("{:?}", v),
+        }
+    }
+
+    fn visit_named_fields(&mut self, named_values: &NamedValues<'_>) {
+        for (field, value) in named_values {
+            print!("{}- {}: ", self.0, field.name());
+            value.visit(self);
+        }
+    }
+
+    fn visit_unnamed_fields(&mut self, values: &[Value<'_>]) {
+        for value in values {
+            print!("{}- ", self.0);
+            value.visit(self);
+        }
+    }
+
+    fn visit_entry(&mut self, key: Value<'_>, value: Value<'_>) {
+        print!("{}- {:?}: ", self.0, key);
+        value.visit(self);
+    }
+}
+
+#[derive(Valuable)]
+struct Person {
+    name: String,
+    age: u32,
+    addresses: Vec<Address>,
+}
+
+#[derive(Valuable)]
+struct Address {
+    street: String,
+    city: String,
+    zip: String,
+}
+
+fn main() {
+    let person = Person {
+        name: "Angela Ashton".to_string(),
+        age: 31,
+        addresses: vec![
+            Address {
+                street: "123 1st Ave".to_string(),
+                city: "Townsville".to_string(),
+                zip: "12345".to_string(),
+            },
+            Address {
+                street: "555 Main St.".to_string(),
+                city: "New Old Town".to_string(),
+                zip: "55555".to_string(),
+            },
+        ],
+    };
+
+    let mut print = Print("".to_string());
+    valuable::visit(&person, &mut print);
+}