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Support if-let in scopes

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This commit is contained in:
Aleksey Kladov 2018-08-27 12:22:09 +03:00
parent c16530c988
commit 07cbb7d73d
12 changed files with 289 additions and 104 deletions
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66
crates/libsyntax2/src/ast/generated.rs
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@ -141,7 +141,11 @@ impl<'a> AstNode<'a> for BlockExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> BlockExpr<'a> {}
impl<'a> BlockExpr<'a> {
pub fn block(self) -> Option<Block<'a>> {
super::child_opt(self)
}
}
// BreakExpr
#[derive(Debug, Clone, Copy)]
@ -197,6 +201,32 @@ impl<'a> AstNode<'a> for CastExpr<'a> {
impl<'a> CastExpr<'a> {}
// Condition
#[derive(Debug, Clone, Copy)]
pub struct Condition<'a> {
syntax: SyntaxNodeRef<'a>,
}
impl<'a> AstNode<'a> for Condition<'a> {
fn cast(syntax: SyntaxNodeRef<'a>) -> Option<Self> {
match syntax.kind() {
CONDITION => Some(Condition { syntax }),
_ => None,
}
}
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> Condition<'a> {
pub fn pat(self) -> Option<Pat<'a>> {
super::child_opt(self)
}
pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
}
// ConstDef
#[derive(Debug, Clone, Copy)]
pub struct ConstDef<'a> {
@ -403,7 +433,11 @@ impl<'a> AstNode<'a> for ExprStmt<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> ExprStmt<'a> {}
impl<'a> ExprStmt<'a> {
pub fn expr(self) -> Option<Expr<'a>> {
super::child_opt(self)
}
}
// FieldExpr
#[derive(Debug, Clone, Copy)]
@ -504,7 +538,11 @@ impl<'a> AstNode<'a> for ForExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> ForExpr<'a> {}
impl<'a> ForExpr<'a> {
pub fn body(self) -> Option<Block<'a>> {
super::child_opt(self)
}
}
// ForType
#[derive(Debug, Clone, Copy)]
@ -540,7 +578,11 @@ impl<'a> AstNode<'a> for IfExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> IfExpr<'a> {}
impl<'a> IfExpr<'a> {
pub fn condition(self) -> Option<Condition<'a>> {
super::child_opt(self)
}
}
// ImplItem
#[derive(Debug, Clone, Copy)]
@ -674,7 +716,11 @@ impl<'a> AstNode<'a> for LoopExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> LoopExpr<'a> {}
impl<'a> LoopExpr<'a> {
pub fn body(self) -> Option<Block<'a>> {
super::child_opt(self)
}
}
// MatchArm
#[derive(Debug, Clone, Copy)]
@ -1742,5 +1788,13 @@ impl<'a> AstNode<'a> for WhileExpr<'a> {
fn syntax(self) -> SyntaxNodeRef<'a> { self.syntax }
}
impl<'a> WhileExpr<'a> {}
impl<'a> WhileExpr<'a> {
pub fn condition(self) -> Option<Condition<'a>> {
super::child_opt(self)
}
pub fn body(self) -> Option<Block<'a>> {
super::child_opt(self)
}
}