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use crate::{AliasId, BlockId, DeclId, Span};
use indexmap::IndexMap;
#[derive(Debug, Clone)]
pub struct Module {
pub decls: IndexMap<Vec<u8>, DeclId>,
pub aliases: IndexMap<Vec<u8>, AliasId>,
pub env_block: Option<BlockId>,
pub span: Option<Span>,
}
impl Module {
pub fn new() -> Self {
Module {
decls: IndexMap::new(),
aliases: IndexMap::new(),
env_block: None,
span: None,
}
}
pub fn from_span(span: Span) -> Self {
Module {
decls: IndexMap::new(),
aliases: IndexMap::new(),
env_block: None,
span: Some(span),
}
}
pub fn add_decl(&mut self, name: Vec<u8>, decl_id: DeclId) -> Option<DeclId> {
self.decls.insert(name, decl_id)
}
pub fn add_alias(&mut self, name: Vec<u8>, alias_id: AliasId) -> Option<AliasId> {
self.aliases.insert(name, alias_id)
}
pub fn add_env_block(&mut self, block_id: BlockId) {
self.env_block = Some(block_id);
}
pub fn extend(&mut self, other: &Module) {
self.decls.extend(other.decls.clone());
self.aliases.extend(other.aliases.clone());
}
pub fn is_empty(&self) -> bool {
self.decls.is_empty() && self.aliases.is_empty()
}
pub fn get_decl_id(&self, name: &[u8]) -> Option<DeclId> {
self.decls.get(name).copied()
}
pub fn get_alias_id(&self, name: &[u8]) -> Option<AliasId> {
self.aliases.get(name).copied()
}
pub fn has_decl(&self, name: &[u8]) -> bool {
self.decls.contains_key(name)
}
pub fn has_alias(&self, name: &[u8]) -> bool {
self.aliases.contains_key(name)
}
pub fn decl_name_with_head(&self, name: &[u8], head: &[u8]) -> Option<Vec<u8>> {
if self.has_decl(name) {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
Some(new_name)
} else {
None
}
}
pub fn alias_name_with_head(&self, name: &[u8], head: &[u8]) -> Option<Vec<u8>> {
if self.has_alias(name) {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
Some(new_name)
} else {
None
}
}
pub fn decls_with_head(&self, head: &[u8]) -> Vec<(Vec<u8>, DeclId)> {
self.decls
.iter()
.map(|(name, id)| {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
(new_name, *id)
})
.collect()
}
pub fn decl_names_with_head(&self, head: &[u8]) -> Vec<Vec<u8>> {
self.decls
.keys()
.map(|name| {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
new_name
})
.collect()
}
pub fn aliases_with_head(&self, head: &[u8]) -> Vec<(Vec<u8>, AliasId)> {
self.aliases
.iter()
.map(|(name, id)| {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
(new_name, *id)
})
.collect()
}
pub fn alias_names_with_head(&self, head: &[u8]) -> Vec<Vec<u8>> {
self.aliases
.keys()
.map(|name| {
let mut new_name = head.to_vec();
new_name.push(b' ');
new_name.extend(name);
new_name
})
.collect()
}
pub fn decls(&self) -> Vec<(Vec<u8>, DeclId)> {
self.decls
.iter()
.map(|(name, id)| (name.clone(), *id))
.collect()
}
pub fn decl_names(&self) -> Vec<Vec<u8>> {
self.decls.keys().cloned().collect()
}
pub fn alias_names(&self) -> Vec<Vec<u8>> {
self.aliases.keys().cloned().collect()
}
pub fn aliases(&self) -> Vec<(Vec<u8>, AliasId)> {
self.aliases
.iter()
.map(|(name, id)| (name.clone(), *id))
.collect()
}
}
impl Default for Module {
fn default() -> Self {
Self::new()
}
}
