Examples of com.google.gwt.dev.jjs.ast.JReferenceType.canBeNull()

Class com.google.gwt.dev.jjs.ast.JReferenceType

Examples of com.google.gwt.dev.jjs.ast.JReferenceType.canBeNull()

com.google.gwt.dev.jjs.ast.JReferenceType.canBeNull()
Returns true if it's possible for this type to be null. @see JNonNullType

  public void endVisit(JArrayLength x, Context ctx) {
    // TODO: Is setting accessesField necessary for array.length access?
    accessesField = true;
    // Can throw an NPE when the array instance is null at runtime.
    JReferenceType refType = (JReferenceType) x.getInstance().getType();
    canThrowException = refType.canBeNull();
  }


  @Override
  public void endVisit(JArrayRef x, Context ctx) {
    /*

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      // Can throw exceptions IFF a clinit is triggered.
      canThrowException = x.hasClinit();
    } else {
      // Can throw exceptions IFF the instance is null.
      JReferenceType refType = (JReferenceType) instance.getType();
      canThrowException = refType.canBeNull();
    }
  }


  @Override
  public void endVisit(JLocalRef x, Context ctx) {

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          JClassType singleConcrete = getSingleConcrete(refType.getUnderlyingType(), implementors);
          assert (singleConcrete == null || program.typeOracle.isInstantiatedType(singleConcrete));
          if (singleConcrete == null) {
            return null;
          }
          return refType.canBeNull() ? singleConcrete : singleConcrete.getNonNull();
        }
      }
      return null;
    }

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              refType.getUnderlyingType(), implementors);
          assert (singleConcrete == null || program.typeOracle.isInstantiatedType(singleConcrete));
          if (singleConcrete == null) {
            return null;
          }
          return refType.canBeNull() ? singleConcrete
              : singleConcrete.getNonNull();
        }
      }
      return null;
    }

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          JClassType singleConcrete = getSingleConcrete(refType.getUnderlyingType(), implementors);
          assert (singleConcrete == null || program.typeOracle.isInstantiatedType(singleConcrete));
          if (singleConcrete == null) {
            return null;
          }
          return refType.canBeNull() ? singleConcrete : singleConcrete.getNonNull();
        }
      }
      return null;
    }

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