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Diffstat (limited to 'src/syntaxParser/java_cup/shift_action.java')
| -rw-r--r-- | src/syntaxParser/java_cup/shift_action.java | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/src/syntaxParser/java_cup/shift_action.java b/src/syntaxParser/java_cup/shift_action.java deleted file mode 100644 index 892d6db..0000000 --- a/src/syntaxParser/java_cup/shift_action.java +++ /dev/null @@ -1,100 +0,0 @@ -/* - * This file is part of Petascope. - * - * Petascope is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as - * published by the Free Software Foundation, either version 3 of - * the License, or (at your option) any later version. - * - * Petascope is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with Petascope. If not, see <http://www.gnu.org/licenses/>. - * - * For more information please see <http://www.Petascope.org> - * or contact Peter Baumann via <baumann@rasdaman.com>. - * - * Copyright 2009 Jacobs University Bremen, Peter Baumann. - */ - -package java_cup; - -/** This class represents a shift action within the parse table. - * The action simply stores the state that it shifts to and responds - * to queries about its type. - */ -public class shift_action extends parse_action { - - /*-----------------------------------------------------------*/ - /*--- Constructor(s) ----------------------------------------*/ - /*-----------------------------------------------------------*/ - - /** Simple constructor. - * @param shft_to the state that this action shifts to. - */ - public shift_action(lalr_state shft_to) throws internal_error - { - /* sanity check */ - if (shft_to == null) - throw new internal_error( - "Attempt to create a shift_action to a null state"); - - _shift_to = shft_to; - } - - /*-----------------------------------------------------------*/ - /*--- (Access to) Instance Variables ------------------------*/ - /*-----------------------------------------------------------*/ - - /** The state we shift to. */ - protected lalr_state _shift_to; - - /** The state we shift to. */ - public lalr_state shift_to() {return _shift_to;} - - /*-----------------------------------------------------------*/ - /*--- General Methods ---------------------------------------*/ - /*-----------------------------------------------------------*/ - - /** Quick access to type of action. */ - public int kind() {return SHIFT;} - - /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/ - - /** Equality test. */ - public boolean equals(shift_action other) - { - return other != null && other.shift_to() == shift_to(); - } - - /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/ - - /** Generic equality test. */ - public boolean equals(Object other) - { - if (other instanceof shift_action) - return equals((shift_action)other); - else - return false; - } - - /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/ - - /** Compute a hash code. */ - public int hashCode() - { - /* use the hash code of the state we are shifting to */ - return shift_to().hashCode(); - } - - /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/ - - /** Convert to a string. */ - public String toString() {return "SHIFT(to state " + shift_to().index() + ")";} - - /*-----------------------------------------------------------*/ - -} |
