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Eclipse Compiler for Java(TM)
/*******************************************************************************
* Copyright (c) 2000, 2022 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.compiler.parser;
/**
* IMPORTANT NOTE: These constants are dedicated to the internal Scanner implementation.
* It is mirrored in org.eclipse.jdt.core.compiler public package where it is API.
* The mirror implementation is using the backward compatible ITerminalSymbols constant
* definitions (stable with 2.0), whereas the internal implementation uses TerminalTokens
* which constant values reflect the latest parser generation state.
*/
/**
* Maps each terminal symbol in the java-grammar into a unique integer.
* This integer is used to represent the terminal when computing a parsing action.
*
* Disclaimer : These constant values are generated automatically using a Java
* grammar, therefore their actual values are subject to change if new keywords
* were added to the language (for instance, 'assert' is a keyword in 1.4).
*/
public interface TerminalTokens {
// special tokens not part of grammar - not autogenerated
int TokenNameNotAToken = 0,
TokenNameWHITESPACE = 1000,
TokenNameCOMMENT_LINE = 1001,
TokenNameCOMMENT_BLOCK = 1002,
TokenNameCOMMENT_JAVADOC = 1003,
TokenNameSingleQuoteStringLiteral = 1004;
static boolean isRestrictedKeyword(int tokenType) {
return switch (tokenType) {
case TokenNameRestrictedIdentifierYield, TokenNameRestrictedIdentifierrecord,TokenNameRestrictedIdentifierWhen,
TokenNameRestrictedIdentifiersealed, TokenNameRestrictedIdentifierpermits -> true;
default -> false;
};
}
static int getRestrictedKeyword(char [] text) {
if (text != null) {
int len = text.length;
if (len == 4 && text[0] == 'w' ||
len == 5 && text[0] == 'y' ||
len == 6 && (text[0] == 'r' || text[0] == 's') ||
len == 7 && text[0] == 'p') {
return getRestrictedKeyword(new String(text));
}
}
return TokenNameNotAToken;
}
static int getRestrictedKeyword(String text) {
return switch (text) {
case "yield" -> TokenNameRestrictedIdentifierYield; //$NON-NLS-1$
case "record" -> TokenNameRestrictedIdentifierrecord; //$NON-NLS-1$
case "when" -> TokenNameRestrictedIdentifierWhen; //$NON-NLS-1$
case "sealed" -> TokenNameRestrictedIdentifiersealed; //$NON-NLS-1$
case "permits" -> TokenNameRestrictedIdentifierpermits; //$NON-NLS-1$
default -> TokenNameNotAToken;
};
}
// BEGIN_AUTOGENERATED_REGION
int TokenNameIdentifier = 22,
TokenNameabstract = 42,
TokenNameassert = 82,
TokenNameboolean = 106,
TokenNamebreak = 83,
TokenNamebyte = 107,
TokenNamecase = 92,
TokenNamecatch = 108,
TokenNamechar = 109,
TokenNameclass = 71,
TokenNamecontinue = 84,
TokenNameconst = 138,
TokenNamedefault = 77,
TokenNamedo = 85,
TokenNamedouble = 110,
TokenNameelse = 124,
TokenNameenum = 75,
TokenNameextends = 93,
TokenNamefalse = 55,
TokenNamefinal = 43,
TokenNamefinally = 117,
TokenNamefloat = 111,
TokenNamefor = 86,
TokenNamegoto = 139,
TokenNameif = 87,
TokenNameimplements = 135,
TokenNameimport = 112,
TokenNameinstanceof = 16,
TokenNameint = 113,
TokenNameinterface = 74,
TokenNamelong = 114,
TokenNamenative = 44,
TokenNamenew = 40,
TokenNamenon_sealed = 45,
TokenNamenull = 56,
TokenNamepackage = 91,
TokenNameprivate = 46,
TokenNameprotected = 47,
TokenNamepublic = 48,
TokenNamereturn = 88,
TokenNameshort = 115,
TokenNamestatic = 36,
TokenNamestrictfp = 49,
TokenNamesuper = 37,
TokenNameswitch = 65,
TokenNamesynchronized = 39,
TokenNamethis = 38,
TokenNamethrow = 79,
TokenNamethrows = 118,
TokenNametransient = 50,
TokenNametrue = 57,
TokenNametry = 89,
TokenNamevoid = 116,
TokenNamevolatile = 51,
TokenNamewhile = 80,
TokenNamemodule = 119,
TokenNameopen = 120,
TokenNamerequires = 125,
TokenNametransitive = 131,
TokenNameexports = 126,
TokenNameopens = 127,
TokenNameto = 136,
TokenNameuses = 128,
TokenNameprovides = 129,
TokenNamewith = 137,
TokenNameIntegerLiteral = 58,
TokenNameLongLiteral = 59,
TokenNameFloatingPointLiteral = 60,
TokenNameDoubleLiteral = 61,
TokenNameCharacterLiteral = 62,
TokenNameStringLiteral = 53,
TokenNameTextBlock = 54,
TokenNameStringTemplate = 121,
TokenNameTextBlockTemplate = 122,
TokenNamePLUS_PLUS = 2,
TokenNameMINUS_MINUS = 3,
TokenNameEQUAL_EQUAL = 19,
TokenNameLESS_EQUAL = 12,
TokenNameGREATER_EQUAL = 13,
TokenNameNOT_EQUAL = 20,
TokenNameLEFT_SHIFT = 18,
TokenNameRIGHT_SHIFT = 14,
TokenNameUNSIGNED_RIGHT_SHIFT = 17,
TokenNamePLUS_EQUAL = 94,
TokenNameMINUS_EQUAL = 95,
TokenNameMULTIPLY_EQUAL = 96,
TokenNameDIVIDE_EQUAL = 97,
TokenNameAND_EQUAL = 98,
TokenNameOR_EQUAL = 99,
TokenNameXOR_EQUAL = 100,
TokenNameREMAINDER_EQUAL = 101,
TokenNameLEFT_SHIFT_EQUAL = 102,
TokenNameRIGHT_SHIFT_EQUAL = 103,
TokenNameUNSIGNED_RIGHT_SHIFT_EQUAL = 104,
TokenNameOR_OR = 31,
TokenNameAND_AND = 30,
TokenNamePLUS = 4,
TokenNameMINUS = 5,
TokenNameNOT = 67,
TokenNameREMAINDER = 9,
TokenNameXOR = 23,
TokenNameAND = 21,
TokenNameMULTIPLY = 8,
TokenNameOR = 27,
TokenNameTWIDDLE = 68,
TokenNameDIVIDE = 10,
TokenNameGREATER = 15,
TokenNameLESS = 11,
TokenNameLPAREN = 24,
TokenNameRPAREN = 25,
TokenNameLBRACE = 52,
TokenNameRBRACE = 33,
TokenNameLBRACKET = 6,
TokenNameRBRACKET = 69,
TokenNameSEMICOLON = 26,
TokenNameQUESTION = 29,
TokenNameCOLON = 66,
TokenNameCOMMA = 32,
TokenNameDOT = 1,
TokenNameEQUAL = 78,
TokenNameAT = 35,
TokenNameELLIPSIS = 123,
TokenNameARROW = 105,
TokenNameCOLON_COLON = 7,
TokenNameBeginLambda = 63,
TokenNameBeginIntersectionCast = 70,
TokenNameBeginTypeArguments = 90,
TokenNameElidedSemicolonAndRightBrace = 72,
TokenNameAT308 = 28,
TokenNameAT308DOTDOTDOT = 132,
TokenNameBeginCaseExpr = 73,
TokenNameRestrictedIdentifierYield = 81,
TokenNameRestrictedIdentifierrecord = 76,
TokenNameRestrictedIdentifiersealed = 41,
TokenNameRestrictedIdentifierpermits = 130,
TokenNameBeginCaseElement = 133,
TokenNameRestrictedIdentifierWhen = 134,
TokenNameUNDERSCORE = 34,
TokenNameEOF = 64,
TokenNameERROR = 140;
}