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Add E0642 to parser error
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@ -44,7 +44,7 @@ use ast::{RangeEnd, RangeSyntax};
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use {ast, attr};
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use codemap::{self, CodeMap, Spanned, respan};
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use syntax_pos::{self, Span, MultiSpan, BytePos, FileName, edition::Edition};
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use errors::{self, Applicability, DiagnosticBuilder};
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use errors::{self, Applicability, DiagnosticBuilder, DiagnosticId};
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use parse::{self, SeqSep, classify, token};
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use parse::lexer::TokenAndSpan;
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use parse::lexer::comments::{doc_comment_style, strip_doc_comment_decoration};
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@ -1775,8 +1775,11 @@ impl<'a> Parser<'a> {
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match pat_arg {
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Ok((pat, ty)) => {
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let mut err = self.diagnostic()
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.struct_span_err(pat.span, "patterns aren't allowed in trait methods");
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let mut err = self.diagnostic().struct_span_err_with_code(
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pat.span,
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"patterns aren't allowed in trait methods",
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DiagnosticId::Error("E0642".into()),
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);
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err.span_suggestion_short_with_applicability(
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pat.span,
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"give this argument a name or use an underscore to ignore it",
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@ -1,4 +1,4 @@
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error: patterns aren't allowed in trait methods
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error[E0642]: patterns aren't allowed in trait methods
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--> $DIR/E0642.rs:12:12
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LL | fn foo((x, y): (i32, i32)); //~ ERROR patterns aren't allowed in trait methods
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@ -8,7 +8,7 @@ help: give this argument a name or use an underscore to ignore it
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LL | fn foo(_: (i32, i32)); //~ ERROR patterns aren't allowed in trait methods
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| ^
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error: patterns aren't allowed in trait methods
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error[E0642]: patterns aren't allowed in trait methods
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--> $DIR/E0642.rs:16:12
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LL | fn bar((x, y): (i32, i32)) {} //~ ERROR patterns aren't allowed in trait methods
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@ -20,3 +20,4 @@ LL | fn bar(_: (i32, i32)) {} //~ ERROR patterns aren't allowed in trait met
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0642`.
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