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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright (C) 2001 Gerwin Klein <lsf@jflex.de> *
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* Copyright (C) 2001 Bernhard Rumpe <rumpe@in.tum.de> *
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* All rights reserved. *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License. See the file *
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* COPYRIGHT for more information. *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* You should have received a copy of the GNU General Public License along *
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* with this program; if not, write to the Free Software Foundation, Inc., *
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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* AST node for an identifier
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class Tident extends Texp implements AST {
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public Tident(String s) {
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public String toString() {
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public void checkcontext(SymTab st) { // CoCo (DefVar)
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SymtabEntry ste = st.lookup(name);
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Main.error("variable not defined: "+name);
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else if (ste.kind() != SymtabEntry.VAR)
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Main.error("function used as variable: "+name);
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int index; // number of ident in environment
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boolean is_input; // is it an input variable?
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public void prepInterp(SymTab st) { // set index for environment
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STEvar ste = (STEvar)st.lookup(name);
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index = ste.getIndex();
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is_input = ste.isInput();
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public int interpret(int[] in, int[] par) {