use rustc_errors::Applicability;
use rustc_hir::{Item, ItemKind};
use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::mir::interpret::ConstValue;
use rustc_middle::ty::layout::LayoutOf;
use rustc_middle::ty::{self, ConstKind};
use rustc_session::{declare_tool_lint, impl_lint_pass};
///
/// ### Example
/// ```rust,ignore
- /// // Bad
/// pub const a = [0u32; 1_000_000];
+ /// ```
///
- /// // Good
+ /// Use instead:
+ /// ```rust.ignore
/// pub static a = [0u32; 1_000_000];
/// ```
#[clippy::version = "1.44.0"]
if let ItemKind::Const(hir_ty, _) = &item.kind;
let ty = hir_ty_to_ty(cx.tcx, hir_ty);
if let ty::Array(element_type, cst) = ty.kind();
- if let ConstKind::Value(ConstValue::Scalar(element_count)) = cst.val();
- if let Ok(element_count) = element_count.to_machine_usize(&cx.tcx);
+ if let ConstKind::Value(ty::ValTree::Leaf(element_count)) = cst.kind();
+ if let Ok(element_count) = element_count.try_to_machine_usize(cx.tcx);
if let Ok(element_size) = cx.layout_of(*element_type).map(|l| l.size.bytes());
if self.maximum_allowed_size < element_count * element_size;
diag.span_suggestion(
sugg_span,
"make this a static item",
- "static".to_string(),
+ "static",
Applicability::MachineApplicable,
);
}