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use super::constructor::Constructor;
use super::field::Field;
use super::method::Method;
use super::modifier::Modifier;
use crate::cons::Cons;
use crate::element::Element;
use crate::into_tokens::IntoTokens;
use crate::java::Java;
use crate::tokens::Tokens;
#[derive(Debug, Clone)]
pub struct Enum<'el> {
pub variants: Tokens<'el, Java<'el>>,
pub modifiers: Vec<Modifier>,
pub fields: Vec<Field<'el>>,
pub constructors: Vec<Constructor<'el>>,
pub methods: Vec<Method<'el>>,
pub body: Tokens<'el, Java<'el>>,
pub extends: Option<Tokens<'el, Java<'el>>>,
pub implements: Vec<Tokens<'el, Java<'el>>>,
annotations: Tokens<'el, Java<'el>>,
name: Cons<'el>,
}
impl<'el> Enum<'el> {
pub fn new<N>(name: N) -> Enum<'el>
where
N: Into<Cons<'el>>,
{
Enum {
variants: Tokens::new(),
modifiers: vec![Modifier::Public],
fields: vec![],
methods: vec![],
body: Tokens::new(),
constructors: vec![],
extends: None,
implements: vec![],
annotations: Tokens::new(),
name: name.into(),
}
}
pub fn annotation<A>(&mut self, annotation: A)
where
A: IntoTokens<'el, Java<'el>>,
{
self.annotations.push(annotation.into_tokens());
}
pub fn name(&self) -> Cons<'el> {
self.name.clone()
}
}
into_tokens_impl_from!(Enum<'el>, Java<'el>);
impl<'el> IntoTokens<'el, Java<'el>> for Enum<'el> {
fn into_tokens(self) -> Tokens<'el, Java<'el>> {
use self::Element::*;
let mut sig = Tokens::new();
sig.extend(self.modifiers.into_tokens());
sig.append("enum");
sig.append(self.name.clone());
if let Some(extends) = self.extends {
sig.append("extends");
sig.append(extends);
}
if !self.implements.is_empty() {
let implements: Tokens<_> = self
.implements
.into_iter()
.map::<Element<_>, _>(Into::into)
.collect();
sig.append("implements");
sig.append(implements.join(", "));
}
let mut s = Tokens::new();
if !self.annotations.is_empty() {
s.push(self.annotations);
}
s.push(toks![sig.join_spacing(), " {"]);
s.nested({
let mut body = Tokens::new();
if !self.variants.is_empty() {
let sep = toks![",", PushSpacing];
let mut variants = self.variants.join(sep);
variants.append(";");
body.append(variants);
} else {
body.append(";");
}
if !self.fields.is_empty() {
let mut fields = Tokens::new();
for field in self.fields {
fields.push(toks![field, ";"]);
}
body.push(fields);
}
if !self.constructors.is_empty() {
for constructor in self.constructors {
body.push((self.name.clone(), constructor));
}
}
if !self.methods.is_empty() {
for method in self.methods {
body.push(method);
}
}
body.extend(self.body);
body.join_line_spacing()
});
s.push("}");
s
}
}
#[cfg(test)]
mod tests {
use super::Enum;
use crate::java::Java;
use crate::tokens::Tokens;
#[test]
fn test_vec() {
let mut c = Enum::new("Foo");
c.body.push("hello");
c.body.push("world");
c.variants.append("FOO(1)");
c.variants.append("BAR(2)");
let t: Tokens<Java> = c.into();
let s = t.to_string();
let out = s.as_ref().map(|s| s.as_str());
assert_eq!(
Ok("public enum Foo {\n FOO(1),\n BAR(2);\n\n hello\n\n world\n}",),
out
);
}
}