org.codehaus.janino

Enum TokenType

java.lang.Object

java.lang.Enum<TokenType>

org.codehaus.janino.TokenType

All Implemented Interfaces:

Serializable, Comparable<TokenType>

public enum TokenType
extends Enum<TokenType>

Enumeration of the types of Tokens that the Scanner produces.

Enum Constant Summary

Enum Constants

Enum Constant and Description
BOOLEAN_LITERAL The token represents a boolean literal; its Token.value is either 'true' or 'false'.
C_PLUS_PLUS_STYLE_COMMENT The token represents a C++-style comment like "// This is a C++-style comment.".
C_STYLE_COMMENT The token represents a C-style comment, like "/* This is a C-style comment. */", which may span multiple lines.
CHARACTER_LITERAL The token represents a character literal; its Token.value is the text of the character literal exactly as it appears in the source code (including the single quotes around it).
END_OF_INPUT Indicates the "end-of-input" condition.
FLOATING_POINT_LITERAL The token represents a floating-point literal; its Token.value is the text of the floating-point literal exactly as it appears in the source code (e.g. "1.23", "1.23F", "1.23D", "1
IDENTIFIER The token represents a Java identifier.
INTEGER_LITERAL The token represents an integer literal; its Token.value is the text of the integer literal exactly as it appears in the source code (e.g. "0", "123", "123L", "03ff", "0xffff", "0b10101010").
KEYWORD The token represents a Java keyword.
NULL_LITERAL The token represents the null literal; its Token.value is 'null'.
OPERATOR The token represents an operator; its Token.value is exactly the particular operator (e.g.
STRING_LITERAL The token represents a string literal; its Token.value is the text of the string literal exactly as it appears in the source code (including the double quotes around it).
WHITE_SPACE The token represents "white space"; i.e. a non-empty sequence of whitespace characters.

Method Summary

Modifier and Type	Method and Description
static TokenType	valueOf(String name) Returns the enum constant of this type with the specified name.
static TokenType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

END_OF_INPUT

public static final TokenType END_OF_INPUT

Indicates the "end-of-input" condition.

IDENTIFIER

public static final TokenType IDENTIFIER

The token represents a Java identifier.

KEYWORD

public static final TokenType KEYWORD

The token represents a Java keyword. ("true", "false" and "null" are not Java keywords, but BOOLEAN_LITERALs and NULL_LITERALs.)

INTEGER_LITERAL

public static final TokenType INTEGER_LITERAL

The token represents an integer literal; its Token.value is the text of the integer literal exactly as it appears in the source code (e.g. "0", "123", "123L", "03ff", "0xffff", "0b10101010").

FLOATING_POINT_LITERAL

public static final TokenType FLOATING_POINT_LITERAL

The token represents a floating-point literal; its Token.value is the text of the floating-point literal exactly as it appears in the source code (e.g. "1.23", "1.23F", "1.23D", "1.", ".1", "1E13").

BOOLEAN_LITERAL

public static final TokenType BOOLEAN_LITERAL

The token represents a boolean literal; its Token.value is either 'true' or 'false'.

CHARACTER_LITERAL

public static final TokenType CHARACTER_LITERAL

The token represents a character literal; its Token.value is the text of the character literal exactly as it appears in the source code (including the single quotes around it).

STRING_LITERAL

public static final TokenType STRING_LITERAL

The token represents a string literal; its Token.value is the text of the string literal exactly as it appears in the source code (including the double quotes around it).

NULL_LITERAL

public static final TokenType NULL_LITERAL

The token represents the null literal; its Token.value is 'null'.

OPERATOR

public static final TokenType OPERATOR

The token represents an operator; its Token.value is exactly the particular operator (e.g. "<<<=").

WHITE_SPACE

public static final TokenType WHITE_SPACE

The token represents "white space"; i.e. a non-empty sequence of whitespace characters. Specifically, any line terminators appear exactly as in the input stream. JLS8 3.6

C_PLUS_PLUS_STYLE_COMMENT

public static final TokenType C_PLUS_PLUS_STYLE_COMMENT

The token represents a C++-style comment like "// This is a C++-style comment.". Notice that the line terminator is not part of the comment; hence, this token is always followed by a WHITE_SPACE token (or by END_OF_INPUT).

C_STYLE_COMMENT

public static final TokenType C_STYLE_COMMENT

The token represents a C-style comment, like "/* This is a C-style comment. */", which may span multiple lines. In the latter case, the enclosed line terminators appear exactly as in the input stream.

Method Detail

values

public static TokenType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (TokenType c : TokenType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static TokenType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null