Class LabeledStatement

All Implemented Interfaces:
Comparable<AstNode>, Iterable<Node>

public class LabeledStatement extends AstNode
A labeled statement. A statement can have more than one label. In this AST representation, all labels for a statement are collapsed into the "labels" list of a single LabeledStatement node.

Node type is Token.EXPR_VOID.

  • Constructor Details

    • LabeledStatement

      public LabeledStatement()
    • LabeledStatement

      public LabeledStatement(int pos)
    • LabeledStatement

      public LabeledStatement(int pos, int len)
  • Method Details

    • getLabels

      public List<Label> getLabels()
      Returns label list
    • setLabels

      public void setLabels(List<Label> labels)
      Sets label list, setting the parent of each label in the list. Replaces any existing labels.
      Throws:
      IllegalArgumentException - } if labels is null
    • addLabel

      public void addLabel(Label label)
      Adds a label and sets its parent to this node.
      Throws:
      IllegalArgumentException - } if label is null
    • getStatement

      public AstNode getStatement()
      Returns the labeled statement
    • getLabelByName

      public Label getLabelByName(String name)
      Returns label with specified name from the label list for this labeled statement. Returns null if there is no label with that name in the list.
    • setStatement

      public void setStatement(AstNode statement)
      Sets the labeled statement, and sets its parent to this node.
      Throws:
      IllegalArgumentException - if statement is null
    • getFirstLabel

      public Label getFirstLabel()
    • hasSideEffects

      public boolean hasSideEffects()
      Overrides:
      hasSideEffects in class AstNode
    • toSource

      public String toSource(int depth)
      Description copied from class: AstNode
      Emits source code for this node. Callee is responsible for calling this function recursively on children, incrementing indent as appropriate.

      Note: if the parser was in error-recovery mode, some AST nodes may have null children that are expected to be non-null when no errors are present. In this situation, the behavior of the toSource method is undefined: toSource implementations may assume that the AST node is error-free, since it is intended to be invoked only at runtime after a successful parse.

      Specified by:
      toSource in class AstNode
      Parameters:
      depth - the current recursion depth, typically beginning at 0 when called on the root node.
    • visit

      public void visit(NodeVisitor v)
      Visits this node, then each label in the label-list, and finally the statement.
      Specified by:
      visit in class AstNode
      Parameters:
      v - the object to call with this node and its children