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Borrowed AST

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This commit is contained in:
Aleksey Kladov 2018-08-17 22:00:13 +03:00
parent 70097504f7
commit d3c90ded2b
16 changed files with 350 additions and 343 deletions
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31
crates/libsyntax2/src/ast/generated.rs.tera
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@ -1,21 +1,20 @@
use std::sync::Arc;
use {
ast,
SyntaxNode, SyntaxRoot, TreeRoot, AstNode,
SyntaxNodeRef, AstNode,
SyntaxKind::*,
};
{% for node, methods in ast %}
// {{ node }}
{%- if methods.enum %}
#[derive(Debug, Clone, Copy)]
pub enum {{ node }}<R: TreeRoot = Arc<SyntaxRoot>> {
pub enum {{ node }}<'a> {
{%- for kind in methods.enum %}
{{ kind }}({{ kind }}<R>),
{{ kind }}({{ kind }}<'a>),
{%- endfor %}
}
impl<R: TreeRoot> AstNode<R> for {{ node }}<R> {
fn cast(syntax: SyntaxNode<R>) -> Option<Self> {
impl<'a> AstNode<'a> for {{ node }}<'a> {
fn cast(syntax: SyntaxNodeRef<'a>) -> Option<Self> {
match syntax.kind() {
{%- for kind in methods.enum %}
{{ kind | SCREAM }} => Some({{ node }}::{{ kind }}({{ kind }} { syntax })),
@ -23,7 +22,7 @@ impl<R: TreeRoot> AstNode<R> for {{ node }}<R> {
_ => None,
}
}
fn syntax(&self) -> &SyntaxNode<R> {
fn syntax(self) -> SyntaxNodeRef<'a> {
match self {
{%- for kind in methods.enum %}
{{ node }}::{{ kind }}(inner) => inner.syntax(),
@ -33,32 +32,32 @@ impl<R: TreeRoot> AstNode<R> for {{ node }}<R> {
}
{% else %}
#[derive(Debug, Clone, Copy)]
pub struct {{ node }}<R: TreeRoot = Arc<SyntaxRoot>> {
syntax: SyntaxNode<R>,
pub struct {{ node }}<'a> {
syntax: SyntaxNodeRef<'a>,
}
impl<R: TreeRoot> AstNode<R> for {{ node }}<R> {
fn cast(syntax: SyntaxNode<R>) -> Option<Self> {
impl<'a> AstNode<'a> for {{ node }}<'a> {
fn cast(syntax: SyntaxNodeRef<'a>) -> Option<Self> {
match syntax.kind() {
{{ node | SCREAM }} => Some({{ node }} { syntax }),
_ => None,
}
}
fn syntax(&self) -> &SyntaxNode<R> { &self.syntax }
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
{% endif %}
{% if methods.traits -%}
{%- for t in methods.traits -%}
impl<R: TreeRoot> ast::{{ t }}<R> for {{ node }}<R> {}
impl<'a> ast::{{ t }}<'a> for {{ node }}<'a> {}
{% endfor -%}
{%- endif -%}
impl<R: TreeRoot> {{ node }}<R> {
impl<'a> {{ node }}<'a> {
{%- if methods.collections -%}
{%- for m in methods.collections -%}
{%- set method_name = m.0 -%}
{%- set ChildName = m.1 %}
pub fn {{ method_name }}<'a>(&'a self) -> impl Iterator<Item = {{ ChildName }}<R>> + 'a {
pub fn {{ method_name }}(self) -> impl Iterator<Item = {{ ChildName }}<'a>> + 'a {
self.syntax()
.children()
.filter_map({{ ChildName }}::cast)
@ -70,7 +69,7 @@ impl<R: TreeRoot> {{ node }}<R> {
{%- for m in methods.options -%}
{%- set method_name = m.0 -%}
{%- set ChildName = m.1 %}
pub fn {{ method_name }}(&self) -> Option<{{ ChildName }}<R>> {
pub fn {{ method_name }}(self) -> Option<{{ ChildName }}<'a>> {
self.syntax()
.children()
.filter_map({{ ChildName }}::cast)