Completion error: "- Could not match expr node type" #323

bruno-medeiros · 2015-08-03T17:35:19Z

Racer outputs this error:

PREFIX 46,46,
- Could not match expr node type: ExprMac(Spanned { node: MacInvocTT(path(vec), [TtToken(Span { lo: BytePos(34), hi: BytePos(45), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(45), hi: BytePos(47), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(47), hi: BytePos(50), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(50), hi: BytePos(68), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(50), hi: BytePos(51), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(51), hi: BytePos(67), expn_id: ExpnId(4294967295) }, Literal(Str_(              (64)), None))], close_span: Span { lo: BytePos(67), hi: BytePos(68), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(68), hi: BytePos(69), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(79), hi: BytePos(90), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(90), hi: BytePos(92), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(92), hi: BytePos(95), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(95), hi: BytePos(113), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(95), hi: BytePos(96), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(96), hi: BytePos(112), expn_id: ExpnId(4294967295) }, Literal(Str_(              (64)), None))], close_span: Span { lo: BytePos(112), hi: BytePos(113), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(113), hi: BytePos(114), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(124), hi: BytePos(135), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(135), hi: BytePos(137), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(137), hi: BytePos(140), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(140), hi: BytePos(153), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(140), hi: BytePos(141), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(141), hi: BytePos(152), expn_id: ExpnId(4294967295) }, Literal(Str_(         (65)), None))], close_span: Span { lo: BytePos(152), hi: BytePos(153), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(153), hi: BytePos(154), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(164), hi: BytePos(175), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(175), hi: BytePos(177), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(177), hi: BytePos(180), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(180), hi: BytePos(203), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(180), hi: BytePos(181), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(181), hi: BytePos(202), expn_id: ExpnId(4294967295) }, Literal(Str_(                   (66)), None))], close_span: Span { lo: BytePos(202), hi: BytePos(203), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(203), hi: BytePos(204), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(214), hi: BytePos(225), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(225), hi: BytePos(227), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(227), hi: BytePos(230), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(230), hi: BytePos(249), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(230), hi: BytePos(231), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(231), hi: BytePos(248), expn_id: ExpnId(4294967295) }, Literal(Str_(               (67)), None))], close_span: Span { lo: BytePos(248), hi: BytePos(249), expn_id: ExpnId(4294967295) } })], 0), span: Span { lo: BytePos(19), hi: BytePos(256), expn_id: ExpnId(4294967295) } }, Bracket)
END

With the following source:

use std::thread;
struct Philosopher { name : String }
impl Philosopher {
    fn new(name: &str) -> Philosopher {
        Philosopher { name: name.to_string() }
    }
    fn eat(&self) {
        println!("{} started eating.", self.name);
        thread::sleep_ms(1000);
        println!("{} is done eating.", self.name);
    }
}

fn main()
{
    let philosephers = vec![
        Philosopher::new("Baruch Spinoza"),
        Philosopher::new("Gilles Deleuze"),
        Philosopher::new("Karl Marx"),
        Philosopher::new("Friedrich Nietzsche"),
        Philosopher::new("Michel Foucault")
    ];

    let thread_handles: Vec<_> = philosephers.into_iter().

    for p in &philosephers {
        p.eat();
    }
}

When racer complete-with-snippet 24 46 is invoked in such file (the point right after Vec<_> = philosephers.)

The text was updated successfully, but these errors were encountered:

phildawes · 2015-08-07T06:38:01Z

Hi Bruno, I'm afraid this is because racer isn't currently able to handle
macros.

On Mon, Aug 3, 2015 at 6:35 PM, Bruno Medeiros [email protected]
wrote:

Racer outputs this error:

PREFIX 46,46,

Could not match expr node type: ExprMac(Spanned { node: MacInvocTT(path(vec), [TtToken(Span { lo: BytePos(34), hi: BytePos(45), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(45), hi: BytePos(47), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(47), hi: BytePos(50), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(50), hi: BytePos(68), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(50), hi: BytePos(51), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(51), hi: BytePos(67), expn_id: ExpnId(4294967295) }, Literal(Str_( (64)), None))], close_span: Span { lo: BytePos(67), hi: BytePos(68), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(68), hi: BytePos(69), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(79), hi: BytePos(90), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)
), TtTok
en(Span { lo: BytePos(90), hi: BytePos(92), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(92), hi: BytePos(95), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(95), hi: BytePos(113), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(95), hi: BytePos(96), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(96), hi: BytePos(112), expn_id: ExpnId(4294967295) }, Literal(Str_( (64)), None))], close_span: Span { lo: BytePos(112), hi: BytePos(113), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(113), hi: BytePos(114), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(124), hi: BytePos(135), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(135), hi: BytePos(137), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(137), hi: BytePos(140), expn_id: ExpnId(4294967295) }, Ident(new#0,
Plain)),
TtDelimited(Span { lo: BytePos(140), hi: BytePos(153), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(140), hi: BytePos(141), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(141), hi: BytePos(152), expn_id: ExpnId(4294967295) }, Literal(Str_( (65)), None))], close_span: Span { lo: BytePos(152), hi: BytePos(153), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(153), hi: BytePos(154), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(164), hi: BytePos(175), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(175), hi: BytePos(177), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(177), hi: BytePos(180), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(180), hi: BytePos(203), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(180), hi: BytePos(181), expn_id: Ex
pnId(429
4967295) }, tts: [TtToken(Span { lo: BytePos(181), hi: BytePos(202), expn_id: ExpnId(4294967295) }, Literal(Str_( (66)), None))], close_span: Span { lo: BytePos(202), hi: BytePos(203), expn_id: ExpnId(4294967295) } }), TtToken(Span { lo: BytePos(203), hi: BytePos(204), expn_id: ExpnId(4294967295) }, Comma), TtToken(Span { lo: BytePos(214), hi: BytePos(225), expn_id: ExpnId(4294967295) }, Ident(Philosopher#0, ModName)), TtToken(Span { lo: BytePos(225), hi: BytePos(227), expn_id: ExpnId(4294967295) }, ModSep), TtToken(Span { lo: BytePos(227), hi: BytePos(230), expn_id: ExpnId(4294967295) }, Ident(new#0, Plain)), TtDelimited(Span { lo: BytePos(230), hi: BytePos(249), expn_id: ExpnId(4294967295) }, Delimited { delim: Paren, open_span: Span { lo: BytePos(230), hi: BytePos(231), expn_id: ExpnId(4294967295) }, tts: [TtToken(Span { lo: BytePos(231), hi: BytePos(248), expn_id: ExpnId(4294967295) }, Literal(Str_( (67)), None))], close_span: Span { lo: B
ytePos(2
48), hi: BytePos(249), expn_id: ExpnId(4294967295) } })], 0), span: Span { lo: BytePos(19), hi: BytePos(256), expn_id: ExpnId(4294967295) } }, Bracket)
END

With the following source:

use std::thread;struct Philosopher { name : String }impl Philosopher {
fn new(name: &str) -> Philosopher {
Philosopher { name: name.to_string() }
}
fn eat(&self) {
println!("{} started eating.", self.name);
thread::sleep_ms(1000);
println!("{} is done eating.", self.name);
}
}
fn main()
{
let philosephers = vec![
Philosopher::new("Baruch Spinoza"),
Philosopher::new("Gilles Deleuze"),
Philosopher::new("Karl Marx"),
Philosopher::new("Friedrich Nietzsche"),
Philosopher::new("Michel Foucault")
];
let thread_handles: Vec<_> = philosephers.into_iter().

for p in &philosephers {
    p.eat();
}
}

When racer complete-with-snippet 24 46 is invoked in such file (the point
right after Vec<_> = philosephers.)

—
Reply to this email directly or view it on GitHub
#323.

bruno-medeiros · 2015-08-07T10:31:45Z

Fair enough, any chance Racer could get a cleaner error output syntax though? It would make it easier for the IDE to know if it is just a Racer limitation, or an actual bug.

bruno-medeiros changed the title ~~"- Could not match expr node type"~~ Completion error: "- Could not match expr node type" Aug 3, 2015

bruno-medeiros mentioned this issue Aug 3, 2015

Unknown line format: - Could not match expr node RustDT/RustDT#47

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Completion error: "- Could not match expr node type" #323

Completion error: "- Could not match expr node type" #323

bruno-medeiros commented Aug 3, 2015

phildawes commented Aug 7, 2015

bruno-medeiros commented Aug 7, 2015

Completion error: "- Could not match expr node type" #323

Completion error: "- Could not match expr node type" #323

Comments

bruno-medeiros commented Aug 3, 2015

phildawes commented Aug 7, 2015

bruno-medeiros commented Aug 7, 2015