com.google.javascript.jscomp.parsing.parser.TokenType Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of closure-compiler Show documentation
Show all versions of closure-compiler Show documentation
Closure Compiler is a JavaScript optimizing compiler. It parses your
JavaScript, analyzes it, removes dead code and rewrites and minimizes
what's left. It also checks syntax, variable references, and types, and
warns about common JavaScript pitfalls. It is used in many of Google's
JavaScript apps, including Gmail, Google Web Search, Google Maps, and
Google Docs.
/*
* Copyright 2011 The Closure Compiler Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.javascript.jscomp.parsing.parser;
import org.jspecify.nullness.Nullable;
// 7.5 Tokens
public enum TokenType {
END_OF_FILE("End of File"),
ERROR("error"),
// 7.6 Identifier Names and Identifiers
IDENTIFIER("identifier"),
// 7.6.1.1 keywords
BREAK,
CASE,
CATCH,
CONTINUE,
DEBUGGER,
DEFAULT,
DELETE,
DO,
ELSE,
FINALLY,
FOR,
FUNCTION,
IF,
IN,
INSTANCEOF,
NEW,
RETURN,
SWITCH,
THIS,
THROW,
TRY,
TYPEOF,
VAR,
VOID,
WHILE,
WITH,
// 7.6.1.2 Future reserved words
CLASS,
CONST,
ENUM,
EXPORT,
EXTENDS,
IMPORT,
SUPER,
// Future reserved words in strict mode
IMPLEMENTS,
INTERFACE,
LET,
PACKAGE,
PRIVATE,
PROTECTED,
PUBLIC,
STATIC,
YIELD,
// 7.7 Punctuators
OPEN_CURLY("{"),
CLOSE_CURLY("}"),
OPEN_PAREN("("),
CLOSE_PAREN(")"),
OPEN_SQUARE("["),
CLOSE_SQUARE("]"),
PERIOD("."),
SEMI_COLON(";"),
COMMA(","),
OPEN_ANGLE("<"),
CLOSE_ANGLE(">"),
LESS_EQUAL("<="),
GREATER_EQUAL(">="),
ARROW("=>"),
EQUAL_EQUAL("=="),
NOT_EQUAL("!="),
EQUAL_EQUAL_EQUAL("==="),
NOT_EQUAL_EQUAL("!=="),
PLUS("+"),
MINUS("-"),
STAR("*"),
STAR_STAR("**"),
PERCENT("%"),
PLUS_PLUS("++"),
MINUS_MINUS("--"),
LEFT_SHIFT("<<"),
RIGHT_SHIFT(">>"),
UNSIGNED_RIGHT_SHIFT(">>>"),
AMPERSAND("&"),
BAR("|"),
CARET("^"),
BANG("!"),
TILDE("~"),
AND("&&"),
OR("||"),
QUESTION("?"),
QUESTION_QUESTION("??"),
QUESTION_DOT("?."),
COLON(":"),
EQUAL("="),
PLUS_EQUAL("+="),
MINUS_EQUAL("-="),
STAR_EQUAL("*="),
STAR_STAR_EQUAL("**="),
PERCENT_EQUAL("%="),
LEFT_SHIFT_EQUAL("<<="),
RIGHT_SHIFT_EQUAL(">>="),
UNSIGNED_RIGHT_SHIFT_EQUAL(">>>="),
AMPERSAND_EQUAL("&="),
BAR_EQUAL("|="),
CARET_EQUAL("^="),
SLASH("/"),
SLASH_EQUAL("/="),
POUND("#"),
// Logical Assignment Punctuators
AND_EQUAL("&&="),
OR_EQUAL("||="),
QUESTION_QUESTION_EQUAL("??="),
// 7.8 Literals
NULL,
TRUE,
FALSE,
NUMBER("number literal"),
STRING("string literal"),
BIGINT("bigint literal"),
REGULAR_EXPRESSION("regular expression literal"),
// Harmony extensions
ELLIPSIS("..."),
// 12.2.9 Template Literals
// Template literal tokens corresponding to different parts of the literal
// Eg: `hello` is scanned as a single NO_SUBSTITUTION_TEMPLATE: hello
// `hello${world}!` is scanned as TEMPLATE_HEAD: hello, TEMPLATE_MIDDLE: world,
// and TEMPLATE_TAIL: !
TEMPLATE_HEAD("template head"),
TEMPLATE_MIDDLE("template middle"),
TEMPLATE_TAIL("template tail"),
NO_SUBSTITUTION_TEMPLATE("no substitution template"),
// TypeScript
TYPE,
DECLARE,
MODULE,
NAMESPACE;
public final String value;
TokenType() {
this(null);
}
TokenType(@Nullable String value) {
this.value = value;
}
@Override
public String toString() {
// TODO: straighten this out
return value == null ? Keywords.get(this).toString() : value;
}
}