bjoernager/rust
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Improve allowness of the unexpected_cfgs lint

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Loïc BRANSTETT 2022-02-27 22:26:24 +01:00
parent d3ad51b48f
commit 765205b9b8
14 changed files with 122 additions and 26 deletions
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6
compiler/rustc_builtin_macros/src/cfg_eval.rs
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@ -5,6 +5,7 @@ use rustc_ast::mut_visit::MutVisitor;
use rustc_ast::ptr::P;
use rustc_ast::tokenstream::CanSynthesizeMissingTokens;
use rustc_ast::visit::Visitor;
use rustc_ast::NodeId;
use rustc_ast::{mut_visit, visit};
use rustc_ast::{AstLike, Attribute};
use rustc_expand::base::{Annotatable, ExtCtxt};
@ -26,15 +27,16 @@ crate fn expand(
) -> Vec<Annotatable> {
check_builtin_macro_attribute(ecx, meta_item, sym::cfg_eval);
warn_on_duplicate_attribute(&ecx, &annotatable, sym::cfg_eval);
vec![cfg_eval(ecx.sess, ecx.ecfg.features, annotatable)]
vec![cfg_eval(ecx.sess, ecx.ecfg.features, annotatable, ecx.current_expansion.lint_node_id)]
}
crate fn cfg_eval(
sess: &Session,
features: Option<&Features>,
annotatable: Annotatable,
lint_node_id: NodeId,
) -> Annotatable {
CfgEval { cfg: &mut StripUnconfigured { sess, features, config_tokens: true } }
CfgEval { cfg: &mut StripUnconfigured { sess, features, config_tokens: true, lint_node_id } }
.configure_annotatable(annotatable)
// Since the item itself has already been configured by the `InvocationCollector`,
// we know that fold result vector will contain exactly one element.