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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Roger Lawrence
+ * Mike McCabe
+ * Igor Bukanov
+ * Bob Jervis
+ * Milen Nankov
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package yuicompressor.org.mozilla.javascript;
+
+/**
+ * This class implements the JavaScript scanner.
+ *
+ * It is based on the C source files jsscan.c and jsscan.h
+ * in the jsref package.
+ *
+ * @see yuicompressor.org.mozilla.javascript.Parser
+ *
+ * @author Mike McCabe
+ * @author Brendan Eich
+ */
+
+public class Token
+{
+
+ // debug flags
+ public static final boolean printTrees = false;
+ static final boolean printICode = false;
+ static final boolean printNames = printTrees || printICode;
+
+ /**
+ * Token types. These values correspond to JSTokenType values in
+ * jsscan.c.
+ */
+
+ public final static int
+ // start enum
+ ERROR = -1, // well-known as the only code < EOF
+ EOF = 0, // end of file token - (not EOF_CHAR)
+ EOL = 1, // end of line
+
+ // Interpreter reuses the following as bytecodes
+ FIRST_BYTECODE_TOKEN = 2,
+
+ ENTERWITH = 2,
+ LEAVEWITH = 3,
+ RETURN = 4,
+ GOTO = 5,
+ IFEQ = 6,
+ IFNE = 7,
+ SETNAME = 8,
+ BITOR = 9,
+ BITXOR = 10,
+ BITAND = 11,
+ EQ = 12,
+ NE = 13,
+ LT = 14,
+ LE = 15,
+ GT = 16,
+ GE = 17,
+ LSH = 18,
+ RSH = 19,
+ URSH = 20,
+ ADD = 21,
+ SUB = 22,
+ MUL = 23,
+ DIV = 24,
+ MOD = 25,
+ NOT = 26,
+ BITNOT = 27,
+ POS = 28,
+ NEG = 29,
+ NEW = 30,
+ DELPROP = 31,
+ TYPEOF = 32,
+ GETPROP = 33,
+ SETPROP = 34,
+ GETELEM = 35,
+ SETELEM = 36,
+ CALL = 37,
+ NAME = 38,
+ NUMBER = 39,
+ STRING = 40,
+ NULL = 41,
+ THIS = 42,
+ FALSE = 43,
+ TRUE = 44,
+ SHEQ = 45, // shallow equality (===)
+ SHNE = 46, // shallow inequality (!==)
+ REGEXP = 47,
+ BINDNAME = 48,
+ THROW = 49,
+ RETHROW = 50, // rethrow caught execetion: catch (e if ) use it
+ IN = 51,
+ INSTANCEOF = 52,
+ LOCAL_LOAD = 53,
+ GETVAR = 54,
+ SETVAR = 55,
+ CATCH_SCOPE = 56,
+ ENUM_INIT_KEYS = 57,
+ ENUM_INIT_VALUES = 58,
+ ENUM_NEXT = 59,
+ ENUM_ID = 60,
+ THISFN = 61,
+ RETURN_RESULT = 62, // to return prevoisly stored return result
+ ARRAYLIT = 63, // array literal
+ OBJECTLIT = 64, // object literal
+ GET_REF = 65, // *reference
+ SET_REF = 66, // *reference = something
+ DEL_REF = 67, // delete reference
+ REF_CALL = 68, // f(args) = something or f(args)++
+ REF_SPECIAL = 69, // reference for special properties like __proto
+
+ // For XML support:
+ DEFAULTNAMESPACE = 70, // default xml namespace =
+ ESCXMLATTR = 71,
+ ESCXMLTEXT = 72,
+ REF_MEMBER = 73, // Reference for x.@y, x..y etc.
+ REF_NS_MEMBER = 74, // Reference for x.ns::y, x..ns::y etc.
+ REF_NAME = 75, // Reference for @y, @[y] etc.
+ REF_NS_NAME = 76; // Reference for ns::y, @ns::y@[y] etc.
+
+ // End of interpreter bytecodes
+ public final static int
+ LAST_BYTECODE_TOKEN = REF_NS_NAME,
+
+ TRY = 77,
+ SEMI = 78, // semicolon
+ LB = 79, // left and right brackets
+ RB = 80,
+ LC = 81, // left and right curlies (braces)
+ RC = 82,
+ LP = 83, // left and right parentheses
+ RP = 84,
+ COMMA = 85, // comma operator
+
+ ASSIGN = 86, // simple assignment (=)
+ ASSIGN_BITOR = 87, // |=
+ ASSIGN_BITXOR = 88, // ^=
+ ASSIGN_BITAND = 89, // |=
+ ASSIGN_LSH = 90, // <<=
+ ASSIGN_RSH = 91, // >>=
+ ASSIGN_URSH = 92, // >>>=
+ ASSIGN_ADD = 93, // +=
+ ASSIGN_SUB = 94, // -=
+ ASSIGN_MUL = 95, // *=
+ ASSIGN_DIV = 96, // /=
+ ASSIGN_MOD = 97; // %=
+
+ public final static int
+ FIRST_ASSIGN = ASSIGN,
+ LAST_ASSIGN = ASSIGN_MOD,
+
+ HOOK = 98, // conditional (?:)
+ COLON = 99,
+ OR = 100, // logical or (||)
+ AND = 101, // logical and (&&)
+ INC = 102, // increment/decrement (++ --)
+ DEC = 103,
+ DOT = 104, // member operator (.)
+ FUNCTION = 105, // function keyword
+ EXPORT = 106, // export keyword
+ IMPORT = 107, // import keyword
+ IF = 108, // if keyword
+ ELSE = 109, // else keyword
+ SWITCH = 110, // switch keyword
+ CASE = 111, // case keyword
+ DEFAULT = 112, // default keyword
+ WHILE = 113, // while keyword
+ DO = 114, // do keyword
+ FOR = 115, // for keyword
+ BREAK = 116, // break keyword
+ CONTINUE = 117, // continue keyword
+ VAR = 118, // var keyword
+ WITH = 119, // with keyword
+ CATCH = 120, // catch keyword
+ FINALLY = 121, // finally keyword
+ VOID = 122, // void keyword
+ RESERVED = 123, // reserved keywords
+
+ EMPTY = 124,
+
+ /* types used for the parse tree - these never get returned
+ * by the scanner.
+ */
+
+ BLOCK = 125, // statement block
+ LABEL = 126, // label
+ TARGET = 127,
+ LOOP = 128,
+ EXPR_VOID = 129, // expression statement in functions
+ EXPR_RESULT = 130, // expression statement in scripts
+ JSR = 131,
+ SCRIPT = 132, // top-level node for entire script
+ TYPEOFNAME = 133, // for typeof(simple-name)
+ USE_STACK = 134,
+ SETPROP_OP = 135, // x.y op= something
+ SETELEM_OP = 136, // x[y] op= something
+ LOCAL_BLOCK = 137,
+ SET_REF_OP = 138, // *reference op= something
+
+ // For XML support:
+ DOTDOT = 139, // member operator (..)
+ COLONCOLON = 140, // namespace::name
+ XML = 141, // XML type
+ DOTQUERY = 142, // .() -- e.g., x.emps.emp.(name == "terry")
+ XMLATTR = 143, // @
+ XMLEND = 144,
+
+ // Optimizer-only-tokens
+ TO_OBJECT = 145,
+ TO_DOUBLE = 146,
+
+ GET = 147, // JS 1.5 get pseudo keyword
+ SET = 148, // JS 1.5 set pseudo keyword
+ CONST = 149,
+ SETCONST = 150,
+ SETCONSTVAR = 151,
+
+ SPECIALCOMMENT = 152, // Internet Explorer conditional comment
+
+ LAST_TOKEN = 153;
+
+ public static String name(int token)
+ {
+ if (!printNames) {
+ return String.valueOf(token);
+ }
+ switch (token) {
+ case ERROR: return "ERROR";
+ case EOF: return "EOF";
+ case EOL: return "EOL";
+ case ENTERWITH: return "ENTERWITH";
+ case LEAVEWITH: return "LEAVEWITH";
+ case RETURN: return "RETURN";
+ case GOTO: return "GOTO";
+ case IFEQ: return "IFEQ";
+ case IFNE: return "IFNE";
+ case SETNAME: return "SETNAME";
+ case BITOR: return "BITOR";
+ case BITXOR: return "BITXOR";
+ case BITAND: return "BITAND";
+ case EQ: return "EQ";
+ case NE: return "NE";
+ case LT: return "LT";
+ case LE: return "LE";
+ case GT: return "GT";
+ case GE: return "GE";
+ case LSH: return "LSH";
+ case RSH: return "RSH";
+ case URSH: return "URSH";
+ case ADD: return "ADD";
+ case SUB: return "SUB";
+ case MUL: return "MUL";
+ case DIV: return "DIV";
+ case MOD: return "MOD";
+ case NOT: return "NOT";
+ case BITNOT: return "BITNOT";
+ case POS: return "POS";
+ case NEG: return "NEG";
+ case NEW: return "NEW";
+ case DELPROP: return "DELPROP";
+ case TYPEOF: return "TYPEOF";
+ case GETPROP: return "GETPROP";
+ case SETPROP: return "SETPROP";
+ case GETELEM: return "GETELEM";
+ case SETELEM: return "SETELEM";
+ case CALL: return "CALL";
+ case NAME: return "NAME";
+ case NUMBER: return "NUMBER";
+ case STRING: return "STRING";
+ case NULL: return "NULL";
+ case THIS: return "THIS";
+ case FALSE: return "FALSE";
+ case TRUE: return "TRUE";
+ case SHEQ: return "SHEQ";
+ case SHNE: return "SHNE";
+ case REGEXP: return "OBJECT";
+ case BINDNAME: return "BINDNAME";
+ case THROW: return "THROW";
+ case RETHROW: return "RETHROW";
+ case IN: return "IN";
+ case INSTANCEOF: return "INSTANCEOF";
+ case LOCAL_LOAD: return "LOCAL_LOAD";
+ case GETVAR: return "GETVAR";
+ case SETVAR: return "SETVAR";
+ case CATCH_SCOPE: return "CATCH_SCOPE";
+ case ENUM_INIT_KEYS: return "ENUM_INIT_KEYS";
+ case ENUM_INIT_VALUES: return "ENUM_INIT_VALUES";
+ case ENUM_NEXT: return "ENUM_NEXT";
+ case ENUM_ID: return "ENUM_ID";
+ case THISFN: return "THISFN";
+ case RETURN_RESULT: return "RETURN_RESULT";
+ case ARRAYLIT: return "ARRAYLIT";
+ case OBJECTLIT: return "OBJECTLIT";
+ case GET_REF: return "GET_REF";
+ case SET_REF: return "SET_REF";
+ case DEL_REF: return "DEL_REF";
+ case REF_CALL: return "REF_CALL";
+ case REF_SPECIAL: return "REF_SPECIAL";
+ case DEFAULTNAMESPACE:return "DEFAULTNAMESPACE";
+ case ESCXMLTEXT: return "ESCXMLTEXT";
+ case ESCXMLATTR: return "ESCXMLATTR";
+ case REF_MEMBER: return "REF_MEMBER";
+ case REF_NS_MEMBER: return "REF_NS_MEMBER";
+ case REF_NAME: return "REF_NAME";
+ case REF_NS_NAME: return "REF_NS_NAME";
+ case TRY: return "TRY";
+ case SEMI: return "SEMI";
+ case LB: return "LB";
+ case RB: return "RB";
+ case LC: return "LC";
+ case RC: return "RC";
+ case LP: return "LP";
+ case RP: return "RP";
+ case COMMA: return "COMMA";
+ case ASSIGN: return "ASSIGN";
+ case ASSIGN_BITOR: return "ASSIGN_BITOR";
+ case ASSIGN_BITXOR: return "ASSIGN_BITXOR";
+ case ASSIGN_BITAND: return "ASSIGN_BITAND";
+ case ASSIGN_LSH: return "ASSIGN_LSH";
+ case ASSIGN_RSH: return "ASSIGN_RSH";
+ case ASSIGN_URSH: return "ASSIGN_URSH";
+ case ASSIGN_ADD: return "ASSIGN_ADD";
+ case ASSIGN_SUB: return "ASSIGN_SUB";
+ case ASSIGN_MUL: return "ASSIGN_MUL";
+ case ASSIGN_DIV: return "ASSIGN_DIV";
+ case ASSIGN_MOD: return "ASSIGN_MOD";
+ case HOOK: return "HOOK";
+ case COLON: return "COLON";
+ case OR: return "OR";
+ case AND: return "AND";
+ case INC: return "INC";
+ case DEC: return "DEC";
+ case DOT: return "DOT";
+ case FUNCTION: return "FUNCTION";
+ case EXPORT: return "EXPORT";
+ case IMPORT: return "IMPORT";
+ case IF: return "IF";
+ case ELSE: return "ELSE";
+ case SWITCH: return "SWITCH";
+ case CASE: return "CASE";
+ case DEFAULT: return "DEFAULT";
+ case WHILE: return "WHILE";
+ case DO: return "DO";
+ case FOR: return "FOR";
+ case BREAK: return "BREAK";
+ case CONTINUE: return "CONTINUE";
+ case VAR: return "VAR";
+ case WITH: return "WITH";
+ case CATCH: return "CATCH";
+ case FINALLY: return "FINALLY";
+ case RESERVED: return "RESERVED";
+ case EMPTY: return "EMPTY";
+ case BLOCK: return "BLOCK";
+ case LABEL: return "LABEL";
+ case TARGET: return "TARGET";
+ case LOOP: return "LOOP";
+ case EXPR_VOID: return "EXPR_VOID";
+ case EXPR_RESULT: return "EXPR_RESULT";
+ case JSR: return "JSR";
+ case SCRIPT: return "SCRIPT";
+ case TYPEOFNAME: return "TYPEOFNAME";
+ case USE_STACK: return "USE_STACK";
+ case SETPROP_OP: return "SETPROP_OP";
+ case SETELEM_OP: return "SETELEM_OP";
+ case LOCAL_BLOCK: return "LOCAL_BLOCK";
+ case SET_REF_OP: return "SET_REF_OP";
+ case DOTDOT: return "DOTDOT";
+ case COLONCOLON: return "COLONCOLON";
+ case XML: return "XML";
+ case DOTQUERY: return "DOTQUERY";
+ case XMLATTR: return "XMLATTR";
+ case XMLEND: return "XMLEND";
+ case TO_OBJECT: return "TO_OBJECT";
+ case TO_DOUBLE: return "TO_DOUBLE";
+ case GET: return "GET";
+ case SET: return "SET";
+ case CONST: return "CONST";
+ case SETCONST: return "SETCONST";
+ }
+
+ // Token without name
+ throw new IllegalStateException(String.valueOf(token));
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-18 09:35:53 +0000