84 lines
2.2 KiB
Java
84 lines
2.2 KiB
Java
package TP2.asd;
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import java.util.Stack;
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import org.pcollections.*;
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import TP2.asd.Interface.Type;
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import TP2.asd.Program.Type_intImp;
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public class SymTable {
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private PStack<PMap<String,Type>> stackMap;
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private int id=1;
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public SymTable(){
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this.stackMap= ConsPStack.empty();
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}
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public String addNewTempVar(/*Type type*/){
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//TODO
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String newVar = "temp"+this.id;
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//this.addVar(newVar,new Type_intImp()); //TODO
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id++;
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return newVar;
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}
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public void next_layer(){
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stackMap.plus(HashTreePMap.empty());
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}
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public void quit_layer() throws Exception{
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if(stackMap.isEmpty()){
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throw new Exception();
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}
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stackMap.minus(stackMap.indexOf(stackMap.getLast()));
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}
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public PMap<String,Type> peppapeek(){
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return stackMap.getLast();
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}
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public void addVar(String s, Type t){
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//Save temporary if not PMap wont save
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PMap<String, Type> pmap = this.peppapeek();
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pmap= pmap.plus(s/*+"_"+this.id*/,t);
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//this.id++;
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//Delete old ones
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stackMap.minus(stackMap.indexOf(stackMap.getLast()));
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//Push the new one
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stackMap.plus(pmap);
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}
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//Usually look for var in highest level , if not found research.
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public boolean searchVar(String s){
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//TOTO
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for(int i= stackMap.size()-1; i>=0; i--){
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if(stackMap.get(i).containsKey(s)){
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return true;
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}
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}
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return false;
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}
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public Stack<PMap<String,Type>> stackmap(){
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return this.stackmap();
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}
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public Type getvar_Type(String s){
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for(int i= stackMap.size()-1; i>=0; i--){
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if(stackMap.get(i).containsKey(s)){
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return stackMap.get(i).get(s);
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}
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}
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return null;
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}
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public String print_all(){
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StringBuilder str = new StringBuilder();
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for(int i= stackMap.size()-1; i>=0; i--){
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str.append("level ").append(i).append("\n");
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for(String s: stackMap.get(i).keySet()){
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str.append(s).append(" ").append(stackMap.get(i).get(s)).append("\n");
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}
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}
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return str.toString();
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}
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}
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