Enum Expect 

pub enum Expect {
    Boundary,
    Char(char),
    Digit,
    DigitDotExpOrBoundary,
    DigitExpOrBoundary,
    DigitOrBoundary,
    DigitOrExpSign,
    DotExpOrBoundary,
    EscChar,
    StrChar,
    TokenStartChar,
    UnicodeEscHexDigit,
}

Character or class of characters expected at the next input position of a JSON text.

This enumeration provides detail information for ErrorKind::UnexpectedByte.

Variants

Boundary

Any token boundary character.

One of:

• '{' (opening brace, U+007B)
• '}' (closing brace, U+007D)
• '[' (opening bracket, U+005B)
• ']' (closing bracket, U+005D)
• ':' (colon, U+003A)
• ',' (comma, U+002C)
• ' ' (space, U+0020)
• '\t' (horizontal tab, U+0009)
• '\n' (line feed, U+000A)
• '\r' (carriage return, U+000D).

Char(char)

A specific character.

Digit

Any decimal digit character, '0'..'9' (U+0030..U+0039).

DigitDotExpOrBoundary

Any decimal digit character (Digit); the dot or period character '.' (U+002E); one of the two exponent indicator characters ‘E’ (U+0045) or ‘e’ (U+0065); or any token boundary character (Boundary).

DigitExpOrBoundary

Any decimal digit character (Digit); or one of the two exponent indicator characters ‘E’ (U+0045) or ‘e’ (U+0065); or any token boundary character (Boundary).

DigitOrBoundary

Any decimal digit character (Digit) or token boundary character (Boundary).

DigitOrExpSign

Any decimal digit character (Digit) or one of the two exponent sign characters '+' (U+002B) or '-' (U+002D).

DotExpOrBoundary

(U+0045) or ‘e’ (U+0065); or any token boundary character (Boundary).

EscChar

Any character that completes a short-form escape sequence or starts a Unicode escape sequence.

One of:

• '"' (double quotation mark, U+0022)
• '\\' (reverse solidus, U+005C)
• '/' (solidus, U+002F)
• 'b' (lowercase ‘b’, U+0062)
• 'f' (lowercase ‘f’, U+0066)
• 'n' (lowercase ‘n’, U+006E)
• 'r' (lowercase ‘r’, U+0072)
• 't' (lowercase ‘t’, U+0074)
• 'u' (lowercase ‘u’, U+0075)

StrChar

Any character that is valid in a JSON string token, the string token termination character '"' (double quotation mark, U+0022).

This essentially means any valid Unicode character at or above the space ' ' (U+0020).

TokenStartChar

Any character that validly starts a JSON token.

One of:

• A boundary character (Boundary)
• A digit (Digit)
• '"' (double quotation mark, U+0022)
• 'f' (U+0066)
• 'n' (U+006E)
• 't' (U+0074)

UnicodeEscHexDigit

Any hexadecimal digit character allowed in a Unicode escape sequence.

One of:

• A decimal digit character (Digit)
• An uppercase letter 'A'..'F' (U+0041..U+0046)
• A lowercase letter 'a'..'f' (U+0061..0066)

Trait Implementations

impl Clone for Expect

fn clone(&self) -> Expect

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Expect

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Expect

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Expect

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Expect

fn eq(&self, other: &Expect) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Expect

impl Eq for Expect

impl StructuralPartialEq for Expect