Package nz.org.riskscape.rl.ast

Class StepReference

java.lang.Object
nz.org.riskscape.rl.ast.StepDeclaration
nz.org.riskscape.rl.ast.StepReference
All Implemented Interfaces:
AST, PipelineAST
public class StepReference extends StepDeclaration

Reference to a step that should have been declared previously.

  • Constructor Details

    • StepReference

      public StepReference(String stepName, String namedInput)

    • StepReference

      public StepReference(String stepName)

    • StepReference

      public StepReference(Token identToken, Optional<Token> aliasToken)

  • Method Details

    • getBoundary

      public Optional<Pair<Token,Token>> getBoundary()
      Returns:
      a pair of tokens that represent the start and end of this expression, to be used when giving users information about where errors have occurred. If the expression has been rebuilt then the boundary may be empty or it may be from the original AST. Intended for use in problems to trace errors back to their source.

    • appendSource

      protected void appendSource(StringBuilder appendTo)

      Implementers extend this to append their source to the given string builder. Done via string builder to encourage a more efficient implementation than is possible with concatenating multiple toString calls that typically contruct a string builder anyway.

    • appendString

      protected void appendString(StringBuilder appendTo)

      Append a simplified string representation to the builder. Default implementation uses appendSource. Subclasses can override to provide a more concise representation.

    • accept

      public <T, R> R accept(PipelineVisitor<T,R> visitor, T data)

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class StepDeclaration

    • canEqual

      protected boolean canEqual(Object other)
      Overrides:
      canEqual in class StepDeclaration

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class StepDeclaration

    • appendSource

      protected static void appendSource(AST ast, StringBuilder appendTo)

      Helper method for appending the source of another ast element to a string builder, efficiently if possible.

    • toString

      public final String toString()

      Returns a simplified view of the ast in a source-like fashion, but with a lot of details left out for conciseness

      Overrides:
      toString in class Object

    • toSource

      public final String toSource()
      Specified by:
      toSource in interface AST
      Returns:
      a normalized version of the AST that can be parsed to be exactly the same AST as this