Package org.rascalmpl.interpreter

Examples of org.rascalmpl.interpreter.Accumulator

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      if (__eval.__getAccumulators().empty()) {
        throw new UnguardedAppend(this);
      }
      if (!this.getDataTarget().isEmpty()) {
        String label = org.rascalmpl.interpreter.utils.Names.name(this.getDataTarget().getLabel());
        Accumulator accu = findDataTarget(__eval, label);
        if (accu == null) {
          throw new UnguardedAppend(this); // TODO: better error
        }
        return accu;
      }
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        String label) {
      Stack<Accumulator> accus = __eval.__getAccumulators();
     
      // Search backwards, to allow nested fors with same label.
      for (int i = accus.size() - 1; i >= 0; i--) {
        Accumulator accu = accus.get(i);
        if (accu.hasLabel(label)) {
          return accu;
        }
      }
      return null;
    }
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    public Result<IValue> interpret(IEvaluator<Result<IValue>> __eval) {

      __eval.setCurrentAST(this);
      __eval.notifyAboutSuspension(this);
     
      Accumulator target = null;
      if (__eval.__getAccumulators().empty()) {
        throw new UnguardedAppend(this);
      }
      if (!this.getDataTarget().isEmpty()) {
        String label = org.rascalmpl.interpreter.utils.Names.name(this
            .getDataTarget().getLabel());
        target = findDataTarget(__eval, label);
        if (target == null) {
          throw new UnguardedAppend(this); // TODO: better error
          // message
        }
      } else {
        target = __eval.__getAccumulators().peek();
      }
      Result<IValue> result = this.getStatement().interpret(__eval);
      target.append(result);
      return result;

    }
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      if (!this.getLabel().isEmpty()) {
        label = org.rascalmpl.interpreter.utils.Names.name(this
            .getLabel().getName());
      }
      __eval.__getAccumulators().push(
          new Accumulator(__eval.__getVf(), label));
      IValue value = null;
      try {
        while (true) {
          try {
            try {
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      if (!this.getLabel().isEmpty()) {
        label = org.rascalmpl.interpreter.utils.Names.name(this
            .getLabel().getName());
      }
      __eval.__getAccumulators().push(
          new Accumulator(__eval.__getVf(), label));

      // TODO: does this prohibit that the body influences the behavior
      // of the generators??

      int i = 0;
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      if (!this.getLabel().isEmpty()) {
        label = org.rascalmpl.interpreter.utils.Names.name(this
            .getLabel().getName());
      }
      __eval.__getAccumulators().push(
          new Accumulator(__eval.__getVf(), label));
      try {
        // a while statement is different from a for statement, the body of
        // the while can influence the
        // variables that are used to test the condition of the loop
        // while does not iterate over all possible matches, rather it
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Related Classes of org.rascalmpl.interpreter.Accumulator

  • org.rascalmpl.semantics.dynamic.Statement$Append
  • org.rascalmpl.semantics.dynamic.Statement$DoWhile
  • org.rascalmpl.semantics.dynamic.Statement$For
  • org.rascalmpl.semantics.dynamic.Statement$While
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