bjoernager/rust
bjoernager/rust
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offset_of

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This commit is contained in:
DrMeepster 2022-09-11 00:37:49 -07:00
parent b92a41c676
commit 511e457c4b
71 changed files with 841 additions and 38 deletions
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7
compiler/rustc_hir/src/hir.rs
View file

@ -1715,6 +1715,7 @@ impl Expr<'_> {
ExprKind::Continue(..) => ExprPrecedence::Continue,
ExprKind::Ret(..) => ExprPrecedence::Ret,
ExprKind::InlineAsm(..) => ExprPrecedence::InlineAsm,
ExprKind::OffsetOf(..) => ExprPrecedence::OffsetOf,
ExprKind::Struct(..) => ExprPrecedence::Struct,
ExprKind::Repeat(..) => ExprPrecedence::Repeat,
ExprKind::Yield(..) => ExprPrecedence::Yield,
@ -1774,6 +1775,7 @@ impl Expr<'_> {
| ExprKind::Loop(..)
| ExprKind::Assign(..)
| ExprKind::InlineAsm(..)
| ExprKind::OffsetOf(..)
| ExprKind::AssignOp(..)
| ExprKind::Lit(_)
| ExprKind::ConstBlock(..)
@ -1818,7 +1820,7 @@ impl Expr<'_> {
pub fn can_have_side_effects(&self) -> bool {
match self.peel_drop_temps().kind {
ExprKind::Path(_) | ExprKind::Lit(_) => false,
ExprKind::Path(_) | ExprKind::Lit(_) | ExprKind::OffsetOf(..) => false,
ExprKind::Type(base, _)
| ExprKind::Unary(_, base)
| ExprKind::Field(base, _)
@ -2022,6 +2024,9 @@ pub enum ExprKind<'hir> {
/// Inline assembly (from `asm!`), with its outputs and inputs.
InlineAsm(&'hir InlineAsm<'hir>),
/// Field offset (`offset_of!`)
OffsetOf(&'hir Ty<'hir>, &'hir [Ident]),
/// A struct or struct-like variant literal expression.
///
/// E.g., `Foo {x: 1, y: 2}`, or `Foo {x: 1, .. base}`,

4
compiler/rustc_hir/src/intravisit.rs
View file

@ -786,6 +786,10 @@ pub fn walk_expr<'v, V: Visitor<'v>>(visitor: &mut V, expression: &'v Expr<'v>)
ExprKind::InlineAsm(ref asm) => {
visitor.visit_inline_asm(asm, expression.hir_id);
}
ExprKind::OffsetOf(ref container, ref fields) => {
visitor.visit_ty(container);
walk_list!(visitor, visit_ident, fields.iter().copied());
}
ExprKind::Yield(ref subexpression, _) => {
visitor.visit_expr(subexpression);
}