Module target_checking 

Re-exports

use std::borrow::Cow; 🔒

use rustc_ast::AttrStyle; 🔒

use rustc_ast::Safety; 🔒

use rustc_attr_ir::target::AssocCtxt; 🔒

use rustc_attr_ir::target::MethodKind; 🔒

use rustc_attr_ir::target::Target; 🔒

use rustc_attr_ir::AttrItem; 🔒

use rustc_attr_ir::Attribute; 🔒

use rustc_attr_ir::AttributeKind; 🔒

use rustc_errors::DiagArgValue; 🔒

use rustc_errors::MultiSpan; 🔒

use rustc_errors::StashKey; 🔒

use rustc_feature::Features; 🔒

use rustc_lint_defs::builtin::INVALID_DOC_ATTRIBUTES; 🔒

use rustc_lint_defs::builtin::MISPLACED_DIAGNOSTIC_ATTRIBUTES; 🔒

use rustc_lint_defs::builtin::UNUSED_ATTRIBUTES; 🔒

use rustc_lint_defs::builtin::USELESS_DEPRECATED; 🔒

use rustc_span::BytePos; 🔒

use rustc_span::FileName; 🔒

use rustc_span::RemapPathScopeComponents; 🔒

use rustc_span::Span; 🔒

use rustc_span::Symbol; 🔒

use rustc_span::sym; 🔒

use crate::context::AcceptContext; 🔒

use crate::diagnostics::InvalidAttrAtCrateLevel; 🔒

use crate::diagnostics::InvalidTarget; 🔒

use crate::diagnostics::InvalidTargetHelp; 🔒

use crate::diagnostics::ItemFollowingInnerAttr; 🔒

use crate::diagnostics::UnsupportedAttributesInWhere; 🔒

use crate::target_checking::Policy::Allow; 🔒

use crate::AttributeParser; 🔒

use crate::ShouldEmit; 🔒

Enums

AllowedResult 🔒

AllowedTargets 🔒

Policy 🔒

This policy determines what diagnostics should be emitted based on the Target of the attribute.

Constants

ALL_TARGETS 🔒

This is the list of all targets to which a attribute can be applied This is used for:

Functions

allowed_targets_applied 🔒

Takes a list of allowed_targets for an attribute, and the target the attribute was applied to. Does some heuristic-based filtering to remove uninteresting targets, and formats the targets into a string

filter_targets 🔒