src/edu/uci/eecs/specCompiler/codeGenerator/SemanticsChecker.java

   1 package edu.uci.eecs.specCompiler.codeGenerator;
   2
   3 import java.util.ArrayList;
   4 import java.util.HashMap;
   5 import java.util.HashSet;
   6
   7 import edu.uci.eecs.specCompiler.specExtraction.ActionSubConstruct.DefineVar;
   8 import edu.uci.eecs.specCompiler.specExtraction.CPDefineCheckConstruct;
   9 import edu.uci.eecs.specCompiler.specExtraction.CPDefineConstruct;
  10 import edu.uci.eecs.specCompiler.specExtraction.ConditionalInterface;
  11 import edu.uci.eecs.specCompiler.specExtraction.Construct;
  12 import edu.uci.eecs.specCompiler.specExtraction.GlobalConstruct;
  13 import edu.uci.eecs.specCompiler.specExtraction.InterfaceConstruct;
  14 import edu.uci.eecs.specCompiler.specExtraction.PotentialCPDefineConstruct;
  15 import edu.uci.eecs.specCompiler.specExtraction.SpecConstruct;
  16
  17 public class SemanticsChecker {
  18         public final ArrayList<SpecConstruct> constructs;
  19         public final HashMap<String, SpecConstruct> CPLabel2Construct;
  20         public final HashMap<String, SpecConstruct> potentialCPLabel2Construct;
  21         public final HashMap<String, SpecConstruct> interfaceName2Construct;
  22         public final HashSet<DefineVar> defineVars;
  23
  24         public SemanticsChecker(ArrayList<SpecConstruct> constructs) {
  25                 this.constructs = constructs;
  26                 this.CPLabel2Construct = new HashMap<String, SpecConstruct>();
  27                 this.potentialCPLabel2Construct = new HashMap<String, SpecConstruct>();
  28                 this.interfaceName2Construct = new HashMap<String, SpecConstruct>();
  29                 this.defineVars = new HashSet<DefineVar>();
  30         }
  31
  32         private void checkHBLabelConsistency(ConditionalInterface inst)
  33                         throws SemanticsCheckerException {
  34                 String interfaceName = inst.interfaceName,
  35                                 label = inst.hbConditionLabel;
  36                 if (!interfaceName2Construct.containsKey(interfaceName)) {
  37                         throw new SemanticsCheckerException(
  38                                         "In global construct, no interface \"" + interfaceName
  39                                                         + "\"!");
  40                 } else if (!label.equals("")){
  41                         InterfaceConstruct iConstruct = (InterfaceConstruct) interfaceName2Construct
  42                                         .get(interfaceName).construct;
  43                         if (!iConstruct.hbConditions.containsKey(label)) {
  44                                 throw new SemanticsCheckerException("Interface "
  45                                                 + interfaceName + " doesn't contain HB_codition: "
  46                                                 + label + "!");
  47                         }
  48                 }
  49         }
  50
  51         private void checkLabelDuplication(Construct construct, String label)
  52                         throws SemanticsCheckerException {
  53                 if (potentialCPLabel2Construct.containsKey(label) ||
  54                                 CPLabel2Construct.containsKey(label))
  55                         throw new SemanticsCheckerException("In construct: " + construct
  56                                         + "\"" + label + "\" has duplication.");
  57         }
  58
  59         public void check() throws SemanticsCheckerException {
  60                 boolean hasGlobalConstruct = false;
  61                 // First grab the information from the interface
  62                 for (int i = 0; i < constructs.size(); i++) {
  63                         Construct inst = constructs.get(i).construct;
  64                         if (inst instanceof InterfaceConstruct) {
  65                                 InterfaceConstruct iConstruct = (InterfaceConstruct) inst;
  66                                 interfaceName2Construct.put(iConstruct.name, constructs.get(i));
  67                                 for (int j = 0; j < iConstruct.action.defineVars.size(); j++) {
  68                                         DefineVar var = iConstruct.action.defineVars.get(j);
  69                                         var.renameVarName("__" + iConstruct.name + "_" + var.varName + "__");
  70                                 }
  71                         }
  72                 }
  73
  74                 String label;
  75                 for (int i = 0; i < constructs.size(); i++) {
  76                         SpecConstruct inst = constructs.get(i);
  77                         Construct construct = inst.construct;
  78                         if (construct instanceof GlobalConstruct) {
  79                                 GlobalConstruct theConstruct = (GlobalConstruct) construct;
  80                                 if (!hasGlobalConstruct)
  81                                         hasGlobalConstruct = true;
  82                                 else {
  83                                         throw new SemanticsCheckerException(
  84                                                         "More than one global construct!");
  85                                 }
  86                                 HashMap<ConditionalInterface, HashSet<ConditionalInterface>> hbConditions = theConstruct.hbRelations;
  87                                 for (ConditionalInterface left : hbConditions.keySet()) {
  88                                         HashSet<ConditionalInterface> set = hbConditions.get(left);
  89                                         checkHBLabelConsistency(left);
  90                                         for (ConditionalInterface right : set) {
  91                                                 checkHBLabelConsistency(right);
  92                                         }
  93                                 }
  94                         } else if (construct instanceof PotentialCPDefineConstruct) {
  95                                 PotentialCPDefineConstruct theConstruct = (PotentialCPDefineConstruct) construct;
  96                                 label = theConstruct.label;
  97                                 checkLabelDuplication(construct, label);
  98                                 potentialCPLabel2Construct.put(label, inst);
  99                         } else if (construct instanceof CPDefineCheckConstruct) {
 100                                 CPDefineCheckConstruct theConstruct = (CPDefineCheckConstruct) construct;
 101                                 label = theConstruct.label;
 102                                 checkLabelDuplication(construct, label);
 103                                 CPLabel2Construct.put(label, inst);
 104                         } else if (construct instanceof CPDefineConstruct) {
 105                                 CPDefineConstruct theConstruct = (CPDefineConstruct) construct;
 106                                 label = theConstruct.label;
 107                                 checkLabelDuplication(construct, label);
 108                                 CPLabel2Construct.put(label, inst);
 109                         }
 110                 }
 111         }
 112
 113         public String toString() {
 114                 StringBuilder sb = new StringBuilder();
 115                 sb.append("Interface name 2 Construct:\n");
 116                 for (String interfaceName : interfaceName2Construct.keySet()) {
 117                         sb.append(interfaceName + "\t" + interfaceName2Construct.get(interfaceName) + "\n");
 118                 }
 119
 120                 sb.append("Potential commit point label 2 Construct:\n");
 121                 for (String label : potentialCPLabel2Construct.keySet()) {
 122                         sb.append(label + "\t" + potentialCPLabel2Construct.get(label) + "\n");
 123                 }
 124
 125                 sb.append("Commit point label 2 Construct:\n");
 126                 for (String label : CPLabel2Construct.keySet()) {
 127                         sb.append(label + "\t" + CPLabel2Construct.get(label) + "\n");
 128                 }
 129                 return sb.toString();
 130         }
 131 }