/usr/share/doc/jflex/examples/interpreter/Tdekl.java is in jflex 1.4.3+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright (C) 2001 Gerwin Klein <lsf@jflex.de> *
* Copyright (C) 2001 Bernhard Rumpe <rumpe@in.tum.de> *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License. See the file *
* COPYRIGHT for more information. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* AST node for function declarations.
*
* Also contains a reference to the symbol table of
* the paramaters and their arity.
*/
class Tdekl implements AST {
Tident ident; // identifier
Tparlist parlist; // liste of parameter
Texp exp; // function body
public Tdekl(Tident i, Tparlist p, Texp e) {
parlist=p;
ident=i;
exp=e;
}
public String toString() {
return(ident+"("+parlist+") = \n "+exp);
}
SymTab params; // symbol table of the parameters
int arity;
public void setSymtab(SymTab st) {
params = new SymTab(st);
parlist.setSymtab(params,false,0);
arity = params.size();
boolean isNew = st.enter(ident.toString(),
new STEfun(ident.toString(),this,arity));
// CoCo (Fun)
if(!isNew) Main.error("funktion "+ident+" defined twice!");
}
public void printSymtabs() {
System.out.print("funktion "+ident.toString()+"\n"+params);
}
public void checkcontext() {
exp.checkcontext(params); // CoCo (DefFun,DefVar,Arity)
}
public void prepInterp(SymTab st) { // set pointers and indices
exp.prepInterp(params);
}
public int interpret(int[] in, int[] par) {
return(exp.interpret(in,par));
}
public int arity() { return(arity); }
}
|