bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/errors/CompilationError.java

   1 package org.simantics.scl.compiler.errors;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5
   6 public class CompilationError implements Comparable<CompilationError> {
   7
   8     public static final CompilationError[] EMPTY_ARRAY = new CompilationError[0];
   9
  10     public final long location;
  11     public final String description;
  12     public final ErrorSeverity severity;
  13
  14     public CompilationError(long location, String description, ErrorSeverity severity) {
  15         if(description == null)
  16             throw new NullPointerException();
  17         this.location = location;
  18         this.description = description;
  19         this.severity = severity;
  20     }
  21
  22     public CompilationError(long location, String description) {
  23         this(location, description, ErrorSeverity.ERROR);
  24     }
  25
  26     public CompilationError(long location, Exception exception) {
  27         this(location, exceptionToString(exception));
  28     }
  29
  30     public CompilationError(String description) {
  31         this(Locations.NO_LOCATION, description);
  32     }
  33
  34     public CompilationError(Exception exception) {
  35         this(Locations.NO_LOCATION, exception);
  36     }
  37
  38     private static String exceptionToString(Exception e) {
  39         StringWriter w = new StringWriter();
  40         e.printStackTrace(new PrintWriter(w));
  41         return w.toString();
  42     }
  43
  44     @Override
  45     public int hashCode() {
  46         final int prime = 31;
  47         int result = 1;
  48         result = prime * result
  49                 + ((description == null) ? 0 : description.hashCode());
  50         result = prime * result + (int) (location ^ (location >>> 32));
  51         return result;
  52     }
  53
  54     @Override
  55     public boolean equals(Object obj) {
  56         if (this == obj)
  57             return true;
  58         if (obj == null)
  59             return false;
  60         if (getClass() != obj.getClass())
  61             return false;
  62         CompilationError other = (CompilationError) obj;
  63         if (description == null) {
  64             if (other.description != null)
  65                 return false;
  66         } else if (!description.equals(other.description))
  67             return false;
  68         if (location != other.location)
  69             return false;
  70         return true;
  71     }
  72
  73     @Override
  74     public int compareTo(CompilationError o) {
  75         if(location < o.location)
  76             return -1;
  77         if(location > o.location)
  78             return 1;
  79         return description.compareTo(o.description);
  80     }
  81
  82     @Override
  83     public String toString() {
  84         return new StringBuilder().append("CompilationError: \"").append(description).append("\" at location ").append(location).toString();
  85     }
  86 }