+use std::borrow::Cow;
+
use rustc_ast::token::Token;
use rustc_ast::{Path, Visibility};
-use rustc_errors::{
- fluent, AddToDiagnostic, Applicability, EmissionGuarantee, HelpUseLatestEdition, IntoDiagnostic,
-};
+use rustc_errors::{fluent, AddToDiagnostic, Applicability, EmissionGuarantee, IntoDiagnostic};
use rustc_macros::{Diagnostic, Subdiagnostic};
use rustc_session::errors::ExprParenthesesNeeded;
+use rustc_span::edition::{Edition, LATEST_STABLE_EDITION};
use rustc_span::symbol::Ident;
use rustc_span::{Span, Symbol};
AddIn(#[primary_span] Span),
}
+#[derive(Diagnostic)]
+#[diag(parse_missing_expression_in_for_loop)]
+pub(crate) struct MissingExpressionInForLoop {
+ #[primary_span]
+ #[suggestion(
+ code = "/* expression */ ",
+ applicability = "has-placeholders",
+ style = "verbose"
+ )]
+ pub span: Span,
+}
+
#[derive(Diagnostic)]
#[diag(parse_missing_comma_after_match_arm)]
pub(crate) struct MissingCommaAfterMatchArm {
#[diag(parse_inclusive_range_match_arrow)]
pub(crate) struct InclusiveRangeMatchArrow {
#[primary_span]
+ pub arrow: Span,
+ #[label]
pub span: Span,
- #[suggestion(
- suggestion_add_space,
- style = "verbose",
- code = " ",
- applicability = "machine-applicable"
- )]
+ #[suggestion(style = "verbose", code = " ", applicability = "machine-applicable")]
pub after_pat: Span,
}
pub span: Span,
}
+#[derive(Diagnostic)]
+#[diag(parse_unexpected_token_after_dot)]
+pub struct UnexpectedTokenAfterDot<'a> {
+ #[primary_span]
+ pub span: Span,
+ pub actual: Cow<'a, str>,
+}
+
#[derive(Diagnostic)]
#[diag(parse_visibility_not_followed_by_item)]
#[help]
pub span: Span,
}
-#[derive(Diagnostic)]
-#[diag(parse_non_item_in_item_list)]
-pub(crate) struct NonItemInItemList {
- #[primary_span]
- pub span: Span,
- #[subdiagnostic]
- pub sub: NonItemInItemListSub,
- #[suggestion(suggestion_remove_semicolon, code = "", applicability = "maybe-incorrect")]
- pub remove_semicolon: Option<Span>,
-}
-
-#[derive(Subdiagnostic)]
-pub(crate) enum NonItemInItemListSub {
- #[suggestion(
- suggestion_use_const_not_let,
- code = "const",
- applicability = "machine-applicable"
- )]
- Let {
- #[primary_span]
- span: Span,
- },
- Other {
- #[label(label_list_start)]
- list_start: Span,
- #[label(label_non_item)]
- non_item: Span,
- #[label(label_list_end)]
- list_end: Span,
- },
-}
-
#[derive(Diagnostic)]
#[diag(parse_bounds_not_allowed_on_trait_aliases)]
pub(crate) struct BoundsNotAllowedOnTraitAliases {
pub span: Span,
}
+#[derive(Diagnostic)]
+#[diag(parse_unexpected_default_value_for_lifetime_in_generic_parameters)]
+pub(crate) struct UnexpectedDefaultValueForLifetimeInGenericParameters {
+ #[primary_span]
+ #[label]
+ pub span: Span,
+}
+
#[derive(Diagnostic)]
#[diag(parse_multiple_where_clauses)]
pub(crate) struct MultipleWhereClauses {
},
}
+#[derive(Diagnostic)]
+#[diag(parse_cannot_be_raw_ident)]
+pub struct CannotBeRawIdent {
+ #[primary_span]
+ pub span: Span,
+ pub ident: Symbol,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_cr_doc_comment)]
+pub struct CrDocComment {
+ #[primary_span]
+ pub span: Span,
+ pub block: bool,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_no_digits_literal, code = "E0768")]
+pub struct NoDigitsLiteral {
+ #[primary_span]
+ pub span: Span,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_invalid_digit_literal)]
+pub struct InvalidDigitLiteral {
+ #[primary_span]
+ pub span: Span,
+ pub base: u32,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_empty_exponent_float)]
+pub struct EmptyExponentFloat {
+ #[primary_span]
+ pub span: Span,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_float_literal_unsupported_base)]
+pub struct FloatLiteralUnsupportedBase {
+ #[primary_span]
+ pub span: Span,
+ pub base: &'static str,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_unknown_prefix)]
+#[note]
+pub struct UnknownPrefix<'a> {
+ #[primary_span]
+ #[label]
+ pub span: Span,
+ pub prefix: &'a str,
+ #[subdiagnostic]
+ pub sugg: Option<UnknownPrefixSugg>,
+}
+
+#[derive(Subdiagnostic)]
+pub enum UnknownPrefixSugg {
+ #[suggestion(suggestion_br, code = "br", applicability = "maybe-incorrect", style = "verbose")]
+ UseBr(#[primary_span] Span),
+ #[suggestion(
+ suggestion_whitespace,
+ code = " ",
+ applicability = "maybe-incorrect",
+ style = "verbose"
+ )]
+ Whitespace(#[primary_span] Span),
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_too_many_hashes)]
+pub struct TooManyHashes {
+ #[primary_span]
+ pub span: Span,
+ pub num: u32,
+}
+
+#[derive(Diagnostic)]
+#[diag(parse_unknown_start_of_token)]
+pub struct UnknownTokenStart {
+ #[primary_span]
+ pub span: Span,
+ pub escaped: String,
+ #[subdiagnostic]
+ pub sugg: Option<TokenSubstitution>,
+ #[subdiagnostic]
+ pub null: Option<UnknownTokenNull>,
+ #[subdiagnostic]
+ pub repeat: Option<UnknownTokenRepeat>,
+}
+
+#[derive(Subdiagnostic)]
+pub enum TokenSubstitution {
+ #[suggestion(sugg_quotes, code = "{suggestion}", applicability = "maybe-incorrect")]
+ DirectedQuotes {
+ #[primary_span]
+ span: Span,
+ suggestion: String,
+ ascii_str: &'static str,
+ ascii_name: &'static str,
+ },
+ #[suggestion(sugg_other, code = "{suggestion}", applicability = "maybe-incorrect")]
+ Other {
+ #[primary_span]
+ span: Span,
+ suggestion: String,
+ ch: String,
+ u_name: &'static str,
+ ascii_str: &'static str,
+ ascii_name: &'static str,
+ },
+}
+
+#[derive(Subdiagnostic)]
+#[note(note_repeats)]
+pub struct UnknownTokenRepeat {
+ pub repeats: usize,
+}
+
+#[derive(Subdiagnostic)]
+#[help(help_null)]
+pub struct UnknownTokenNull;
+
+#[derive(Diagnostic)]
+pub enum UnescapeError {
+ #[diag(parse_invalid_unicode_escape)]
+ #[help]
+ InvalidUnicodeEscape {
+ #[primary_span]
+ #[label]
+ span: Span,
+ surrogate: bool,
+ },
+ #[diag(parse_escape_only_char)]
+ EscapeOnlyChar {
+ #[primary_span]
+ span: Span,
+ #[suggestion(escape, applicability = "machine-applicable", code = "{escaped_sugg}")]
+ char_span: Span,
+ escaped_sugg: String,
+ escaped_msg: String,
+ byte: bool,
+ },
+ #[diag(parse_bare_cr)]
+ BareCr {
+ #[primary_span]
+ #[suggestion(escape, applicability = "machine-applicable", code = "\\r")]
+ span: Span,
+ double_quotes: bool,
+ },
+ #[diag(parse_bare_cr_in_raw_string)]
+ BareCrRawString(#[primary_span] Span),
+ #[diag(parse_too_short_hex_escape)]
+ TooShortHexEscape(#[primary_span] Span),
+ #[diag(parse_invalid_char_in_escape)]
+ InvalidCharInEscape {
+ #[primary_span]
+ #[label]
+ span: Span,
+ is_hex: bool,
+ ch: String,
+ },
+ #[diag(parse_out_of_range_hex_escape)]
+ OutOfRangeHexEscape(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_leading_underscore_unicode_escape)]
+ LeadingUnderscoreUnicodeEscape {
+ #[primary_span]
+ #[label(parse_leading_underscore_unicode_escape_label)]
+ span: Span,
+ ch: String,
+ },
+ #[diag(parse_overlong_unicode_escape)]
+ OverlongUnicodeEscape(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_unclosed_unicode_escape)]
+ UnclosedUnicodeEscape(
+ #[primary_span]
+ #[label]
+ Span,
+ #[suggestion(terminate, code = "}}", applicability = "maybe-incorrect", style = "verbose")]
+ Span,
+ ),
+ #[diag(parse_no_brace_unicode_escape)]
+ NoBraceInUnicodeEscape {
+ #[primary_span]
+ span: Span,
+ #[label]
+ label: Option<Span>,
+ #[subdiagnostic]
+ sub: NoBraceUnicodeSub,
+ },
+ #[diag(parse_unicode_escape_in_byte)]
+ #[help]
+ UnicodeEscapeInByte(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_empty_unicode_escape)]
+ EmptyUnicodeEscape(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_zero_chars)]
+ ZeroChars(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_lone_slash)]
+ LoneSlash(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_unskipped_whitespace)]
+ UnskippedWhitespace {
+ #[primary_span]
+ span: Span,
+ #[label]
+ char_span: Span,
+ ch: String,
+ },
+ #[diag(parse_multiple_skipped_lines)]
+ MultipleSkippedLinesWarning(
+ #[primary_span]
+ #[label]
+ Span,
+ ),
+ #[diag(parse_more_than_one_char)]
+ MoreThanOneChar {
+ #[primary_span]
+ span: Span,
+ #[subdiagnostic]
+ note: Option<MoreThanOneCharNote>,
+ #[subdiagnostic]
+ suggestion: MoreThanOneCharSugg,
+ },
+}
+
+#[derive(Subdiagnostic)]
+pub enum MoreThanOneCharSugg {
+ #[suggestion(consider_normalized, code = "{normalized}", applicability = "machine-applicable")]
+ NormalizedForm {
+ #[primary_span]
+ span: Span,
+ ch: String,
+ normalized: String,
+ },
+ #[suggestion(remove_non, code = "{ch}", applicability = "maybe-incorrect")]
+ RemoveNonPrinting {
+ #[primary_span]
+ span: Span,
+ ch: String,
+ },
+ #[suggestion(use_double_quotes, code = "{sugg}", applicability = "machine-applicable")]
+ Quotes {
+ #[primary_span]
+ span: Span,
+ is_byte: bool,
+ sugg: String,
+ },
+}
+
+#[derive(Subdiagnostic)]
+pub enum MoreThanOneCharNote {
+ #[note(followed_by)]
+ AllCombining {
+ #[primary_span]
+ span: Span,
+ chr: String,
+ len: usize,
+ escaped_marks: String,
+ },
+ #[note(non_printing)]
+ NonPrinting {
+ #[primary_span]
+ span: Span,
+ escaped: String,
+ },
+}
+
+#[derive(Subdiagnostic)]
+pub enum NoBraceUnicodeSub {
+ #[suggestion(use_braces, code = "{suggestion}", applicability = "maybe-incorrect")]
+ Suggestion {
+ #[primary_span]
+ span: Span,
+ suggestion: String,
+ },
+ #[help(format_of_unicode)]
+ Help,
+}
+
#[derive(Subdiagnostic)]
pub(crate) enum TopLevelOrPatternNotAllowedSugg {
#[suggestion(
#[diag(parse_dot_dot_dot_for_remaining_fields)]
pub(crate) struct DotDotDotForRemainingFields {
#[primary_span]
- #[suggestion(code = "..", applicability = "machine-applicable")]
+ #[suggestion(code = "..", style = "verbose", applicability = "machine-applicable")]
pub span: Span,
+ pub token_str: Cow<'static, str>,
}
#[derive(Diagnostic)]
pub num_bounds: usize,
pub fixed: String,
}
+
+#[derive(Subdiagnostic)]
+pub enum HelpUseLatestEdition {
+ #[help(parse_help_set_edition_cargo)]
+ #[note(parse_note_edition_guide)]
+ Cargo { edition: Edition },
+ #[help(parse_help_set_edition_standalone)]
+ #[note(parse_note_edition_guide)]
+ Standalone { edition: Edition },
+}
+
+impl HelpUseLatestEdition {
+ pub fn new() -> Self {
+ let edition = LATEST_STABLE_EDITION;
+ if std::env::var_os("CARGO").is_some() {
+ Self::Cargo { edition }
+ } else {
+ Self::Standalone { edition }
+ }
+ }
+}
projects / rust.git / blobdiff