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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use crate::ansi;
use crate::deno_dir::DenoDir;
use crate::msg;
use deno_core::deno_mod;
use std::collections::HashMap;
use std::collections::HashSet;
use std::fmt;
pub struct ModuleInfo {
name: String,
children: Vec<deno_mod>,
}
/// A collection of JS modules.
#[derive(Default)]
pub struct Modules {
pub info: HashMap<deno_mod, ModuleInfo>,
pub by_name: HashMap<String, deno_mod>,
}
impl Modules {
pub fn new() -> Modules {
Self {
info: HashMap::new(),
by_name: HashMap::new(),
}
}
pub fn get_id(&self, name: &str) -> Option<deno_mod> {
self.by_name.get(name).cloned()
}
pub fn get_children(&self, id: deno_mod) -> Option<&Vec<deno_mod>> {
self.info.get(&id).map(|i| &i.children)
}
pub fn get_name(&self, id: deno_mod) -> Option<&String> {
self.info.get(&id).map(|i| &i.name)
}
pub fn is_registered(&self, name: &str) -> bool {
self.by_name.get(name).is_some()
}
pub fn register(&mut self, id: deno_mod, name: &str) {
let name = String::from(name);
debug!("register {}", name);
self.by_name.insert(name.clone(), id);
self.info.insert(
id,
ModuleInfo {
name,
children: Vec::new(),
},
);
}
pub fn resolve_cb(
&mut self,
deno_dir: &DenoDir,
specifier: &str,
referrer: deno_mod,
) -> deno_mod {
debug!("resolve_cb {}", specifier);
let maybe_info = self.info.get_mut(&referrer);
if maybe_info.is_none() {
debug!("cant find referrer {}", referrer);
return 0;
}
let info = maybe_info.unwrap();
let referrer_name = &info.name;
let r = deno_dir.resolve_module(specifier, referrer_name);
if let Err(err) = r {
debug!("potentially swallowed err: {}", err);
return 0;
}
let (name, _local_filename) = r.unwrap();
if let Some(id) = self.by_name.get(&name) {
let child_id = *id;
info.children.push(child_id);
return child_id;
} else {
return 0;
}
}
pub fn print_file_info(&self, deno_dir: &DenoDir, filename: String) {
// TODO Note the --reload flag is ignored here.
let maybe_out = deno_dir.fetch_module_meta_data(&filename, ".", true);
if maybe_out.is_err() {
println!("{}", maybe_out.unwrap_err());
return;
}
let out = maybe_out.unwrap();
println!("{} {}", ansi::bold("local:".to_string()), &(out.filename));
println!(
"{} {}",
ansi::bold("type:".to_string()),
msg::enum_name_media_type(out.media_type)
);
if out.maybe_output_code_filename.is_some() {
println!(
"{} {}",
ansi::bold("compiled:".to_string()),
out.maybe_output_code_filename.as_ref().unwrap(),
);
}
if out.maybe_source_map_filename.is_some() {
println!(
"{} {}",
ansi::bold("map:".to_string()),
out.maybe_source_map_filename.as_ref().unwrap()
);
}
let deps = Deps::new(self, &out.module_name);
println!("{}{}", ansi::bold("deps:\n".to_string()), deps.name);
if let Some(ref depsdeps) = deps.deps {
for d in depsdeps {
println!("{}", d);
}
}
}
}
pub struct Deps {
pub name: String,
pub deps: Option<Vec<Deps>>,
prefix: String,
is_last: bool,
}
impl Deps {
pub fn new(modules: &Modules, module_name: &str) -> Deps {
let mut seen = HashSet::new();
let id = modules.get_id(module_name).unwrap();
Self::helper(&mut seen, "".to_string(), true, modules, id)
}
fn helper(
seen: &mut HashSet<deno_mod>,
prefix: String,
is_last: bool,
modules: &Modules,
id: deno_mod,
) -> Deps {
let name = modules.get_name(id).unwrap().to_string();
if seen.contains(&id) {
Deps {
name,
prefix,
deps: None,
is_last,
}
} else {
seen.insert(id);
let child_ids = modules.get_children(id).unwrap();
let child_count = child_ids.iter().count();
let deps = child_ids
.iter()
.enumerate()
.map(|(index, dep_id)| {
let new_is_last = index == child_count - 1;
let mut new_prefix = prefix.clone();
new_prefix.push(if is_last { ' ' } else { '│' });
new_prefix.push(' ');
Self::helper(seen, new_prefix, new_is_last, modules, *dep_id)
}).collect();
Deps {
name,
prefix,
deps: Some(deps),
is_last,
}
}
}
}
impl fmt::Display for Deps {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let mut has_children = false;
if let Some(ref deps) = self.deps {
has_children = !deps.is_empty();
}
write!(
f,
"{}{}─{} {}",
self.prefix,
if self.is_last { "└" } else { "├" },
if has_children { "┬" } else { "─" },
self.name
)?;
if let Some(ref deps) = self.deps {
for d in deps {
write!(f, "\n{}", d)?;
}
}
Ok(())
}
}
|
