Class Token

Represents a range of characters represented by a lexical token within a Source.

Constructors

constructor

Properties

column end kind line next prev start value

Methods

toJSON

Constructors

constructor

  • new Token(kind, start, end, line, column, prev, value?): Token

  • Parameters

    • kind: TokenKindEnum
    • start: number
    • end: number
    • line: number
    • column: number
    • prev: null | Token
    • Optional value: string

    Returns Token

Properties

Readonly column

column: number

The 1-indexed column number at which this Token begins.

Readonly end

end: number

The character offset at which this Node ends.

Readonly kind

kind: TokenKindEnum

The kind of Token.

Readonly line

line: number

The 1-indexed line number on which this Token appears.

Readonly next

next: null | Token

Readonly prev

prev: null | Token

Tokens exist as nodes in a double-linked-list amongst all tokens including ignored tokens. is always the first node and the last.

Readonly start

start: number

The character offset at which this Node begins.

Readonly value

value: undefined | string

For non-punctuation tokens, represents the interpreted value of the token.

Methods

toJSON

  • toJSON(): {
        column: number;
        kind: TokenKindEnum;
        line: number;
        value: undefined | string;
    }

  • Returns {
        column: number;
        kind: TokenKindEnum;
        line: number;
        value: undefined | string;
    }

    • column: number
    • kind: TokenKindEnum
    • line: number
    • value: undefined | string

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