bjoernager/rust
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Check for macros in built-in attributes that don't support them.

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This commit is contained in:
Eric Huss 2021-09-17 13:08:56 -07:00
parent 5f8c571e50
commit 75f058dbfd
14 changed files with 142 additions and 8 deletions
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14
compiler/rustc_parse/src/validate_attr.rs
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@ -4,7 +4,7 @@ use crate::parse_in;
use rustc_ast::tokenstream::{DelimSpan, TokenTree};
use rustc_ast::{self as ast, Attribute, MacArgs, MacDelimiter, MetaItem, MetaItemKind};
use rustc_errors::{Applicability, PResult};
use rustc_errors::{Applicability, FatalError, PResult};
use rustc_feature::{AttributeTemplate, BUILTIN_ATTRIBUTE_MAP};
use rustc_session::lint::builtin::ILL_FORMED_ATTRIBUTE_INPUT;
use rustc_session::parse::ParseSess;
@ -162,3 +162,15 @@ fn emit_malformed_attribute(
.emit();
}
}
pub fn emit_fatal_malformed_builtin_attribute(
sess: &ParseSess,
attr: &Attribute,
name: Symbol,
) -> ! {
let template = BUILTIN_ATTRIBUTE_MAP.get(&name).expect("builtin attr defined").2;
emit_malformed_attribute(sess, attr, name, template);
// This is fatal, otherwise it will likely cause a cascade of other errors
// (and an error here is expected to be very rare).
FatalError.raise()
}