bjoernager/rust
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use suggestions instead of helps with code in them

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This commit is contained in:
Oliver Schneider 2017-01-31 14:45:08 +01:00
parent 0c85f2a1bd
commit d73e84d2e7
4 changed files with 27 additions and 8 deletions
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27
src/libsyntax/parse/parser.rs
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@ -2456,9 +2456,21 @@ impl<'a> Parser<'a> {
Some(f) => f,
None => continue,
};
err.help(&format!("try parenthesizing the first index; e.g., `(foo.{}){}`",
float.trunc() as usize,
format!(".{}", fstr.splitn(2, ".").last().unwrap())));
let sugg = pprust::to_string(|s| {
use print::pprust::PrintState;
use print::pp::word;
s.popen()?;
s.print_expr(&e)?;
word(&mut s.s, ".")?;
s.print_usize(float.trunc() as usize)?;
s.pclose()?;
word(&mut s.s, ".")?;
word(&mut s.s, fstr.splitn(2, ".").last().unwrap())
});
err.span_suggestion(
prev_span,
"try parenthesizing the first index",
sugg);
}
return Err(err);
@ -3900,7 +3912,14 @@ impl<'a> Parser<'a> {
if self.eat(&token::Semi) {
stmt_span.hi = self.prev_span.hi;
}
e.span_help(stmt_span, "try placing this code inside a block");
let sugg = pprust::to_string(|s| {
use print::pprust::{PrintState, INDENT_UNIT};
s.ibox(INDENT_UNIT)?;
s.bopen()?;
s.print_stmt(&stmt)?;
s.bclose_maybe_open(stmt.span, INDENT_UNIT, false)
});
e.span_suggestion(stmt_span, "try placing this code inside a block", sugg);
}
Err(mut e) => {
self.recover_stmt_(SemiColonMode::Break);