2021-03-25 18:29:11 +00:00
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use clippy_utils::diagnostics::span_lint;
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2021-03-12 14:30:50 +00:00
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use if_chain::if_chain;
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use rustc_hir as hir;
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use rustc_lint::LateContext;
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use rustc_middle::ty;
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use super::ZST_OFFSET;
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pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, args: &[hir::Expr<'_>]) {
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if_chain! {
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if args.len() == 2;
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if let ty::RawPtr(ty::TypeAndMut { ref ty, .. }) = cx.typeck_results().expr_ty(&args[0]).kind();
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if let Ok(layout) = cx.tcx.layout_of(cx.param_env.and(ty));
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if layout.is_zst();
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then {
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span_lint(cx, ZST_OFFSET, expr.span, "offset calculation on zero-sized value");
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}
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}
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}
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