TokenType class
The types of tokens that can be returned by the scanner.
Clients may not extend, implement or mix-in this class.
Constructors
- TokenType(int index, String lexeme, String name, int precedence, int kind, {TokenType? binaryOperatorOfCompoundAssignment, bool isBinaryOperator = false, bool isModifier = false, bool isOperator = false, bool isTopLevelKeyword = false, bool isUserDefinableOperator = false, String? stringValue = 'unspecified'})
-
const
Properties
- binaryOperatorOfCompoundAssignment → TokenType?
-
The binary operator that is invoked by this compound assignment operator,
or
null
otherwise.final - hashCode → int
-
The hash code for this object.
no setterinherited
- index → int
-
A unique index identifying this TokenType.
final
- isAdditiveOperator → bool
-
Return
true
if this type of token represents an additive operator.no setter - isAssignmentOperator → bool
-
Return
true
if this type of token represents an assignment operator.no setter - isAssociativeOperator → bool
-
Return
true
if this type of token represents an associative operator. An associative operator is an operator for which the following equality is true:(a * b) * c == a * (b * c)
. In other words, if the result of applying the operator to multiple operands does not depend on the order in which those applications occur.no setter - isBinaryOperator → bool
-
true
if this token type represents a binary operator.final - isBuiltIn → bool
-
A flag indicating whether the keyword is a "built-in" identifier.
no setter
- isEqualityOperator → bool
-
Return
true
if this type of token represents an equality operator.no setter - isIncrementOperator → bool
-
Return
true
if this type of token represents an increment operator.no setter - isKeyword → bool
-
Return
true
if this type of token is a keyword.no setter - isModifier → bool
-
true
if this token type represents a modifier such asabstract
orconst
.final - isMultiplicativeOperator → bool
-
Return
true
if this type of token represents a multiplicative operator.no setter - isOperator → bool
-
true
if this token type represents an operator.final - isPseudo → bool
-
A flag indicating whether the keyword can be used as an identifier
in some situations.
no setter
- isRelationalOperator → bool
-
Return
true
if this type of token represents a relational operator.no setter - isReservedWord → bool
-
A flag indicating whether the keyword is a "reserved word".
no setter
- isSelectorOperator → bool
-
Return
true
if this type of token represents a selector operator (starting token of a selector).no setter - isShiftOperator → bool
-
Return
true
if this type of token represents a shift operator.no setter - isTopLevelKeyword → bool
-
true
if this token type represents a keyword starting a top level declaration such asclass
,enum
,import
, etc.final - isUnaryPostfixOperator → bool
-
Return
true
if this type of token represents a unary postfix operator.no setter - isUnaryPrefixOperator → bool
-
Return
true
if this type of token represents a unary prefix operator.no setter - isUserDefinableOperator → bool
-
true
if this token type represents an operator that can be defined by users.final - kind → int
-
final
- lexeme → String
-
The lexeme that defines this type of token,
or
null
if there is more than one possible lexeme for this type of token.final - name → String
-
The name of the token type.
final
- precedence → int
-
The precedence of this type of token,
or
0
if the token does not represent an operator.final - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- stringValue → String?
-
See Token.stringValue for an explanation.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
-
all
→ const List<
TokenType> - AMPERSAND → const TokenType
- AMPERSAND_AMPERSAND → const TokenType
- AMPERSAND_AMPERSAND_EQ → const TokenType
- AMPERSAND_EQ → const TokenType
- AS → const TokenType
- AT → const TokenType
- BACKPING → const TokenType
- BACKSLASH → const TokenType
- BAD_INPUT → const TokenType
- Token type used by error tokens.
- BANG → const TokenType
- BANG_EQ → const TokenType
- BANG_EQ_EQ → const TokenType
- BAR → const TokenType
- BAR_BAR → const TokenType
- BAR_BAR_EQ → const TokenType
- BAR_EQ → const TokenType
- CARET → const TokenType
- CARET_EQ → const TokenType
- CLOSE_CURLY_BRACKET → const TokenType
- CLOSE_PAREN → const TokenType
- CLOSE_SQUARE_BRACKET → const TokenType
- COLON → const TokenType
- COMMA → const TokenType
- DOUBLE → const TokenType
- EOF → const TokenType
- The type of the token that marks the start or end of the input.
- EQ → const TokenType
- EQ_EQ → const TokenType
- EQ_EQ_EQ → const TokenType
-
The
===
operator is not supported in the Dart language but is parsed as such by the scanner to support better recovery when a JavaScript code snippet is pasted into a Dart file. - FUNCTION → const TokenType
- GT → const TokenType
- GT_EQ → const TokenType
- GT_GT → const TokenType
- GT_GT_EQ → const TokenType
- GT_GT_GT → const TokenType
- GT_GT_GT_EQ → const TokenType
- HASH → const TokenType
- HEXADECIMAL → const TokenType
- IDENTIFIER → const TokenType
- INDEX → const TokenType
- INDEX_EQ → const TokenType
- INT → const TokenType
- IS → const TokenType
- LT → const TokenType
- LT_EQ → const TokenType
- LT_LT → const TokenType
- LT_LT_EQ → const TokenType
- MINUS → const TokenType
- MINUS_EQ → const TokenType
- MINUS_MINUS → const TokenType
- MULTI_LINE_COMMENT → const TokenType
- OPEN_CURLY_BRACKET → const TokenType
- OPEN_PAREN → const TokenType
- OPEN_SQUARE_BRACKET → const TokenType
- PERCENT → const TokenType
- PERCENT_EQ → const TokenType
- PERIOD → const TokenType
- PERIOD_PERIOD → const TokenType
- PERIOD_PERIOD_PERIOD → const TokenType
- PERIOD_PERIOD_PERIOD_QUESTION → const TokenType
- PLUS → const TokenType
- PLUS_EQ → const TokenType
- PLUS_PLUS → const TokenType
- QUESTION → const TokenType
- QUESTION_PERIOD → const TokenType
- QUESTION_PERIOD_PERIOD → const TokenType
- QUESTION_QUESTION → const TokenType
- QUESTION_QUESTION_EQ → const TokenType
- RECOVERY → const TokenType
- Token type used by synthetic tokens that are created during parser recovery (non-analyzer use case).
- SCRIPT_TAG → const TokenType
- SEMICOLON → const TokenType
- SINGLE_LINE_COMMENT → const TokenType
- SLASH → const TokenType
- SLASH_EQ → const TokenType
- STAR → const TokenType
- STAR_EQ → const TokenType
- STRING → const TokenType
- STRING_INTERPOLATION_EXPRESSION → const TokenType
- STRING_INTERPOLATION_IDENTIFIER → const TokenType
- TILDE → const TokenType
- TILDE_SLASH → const TokenType
- TILDE_SLASH_EQ → const TokenType