AstNode (morel 0.3.0 API)

java.lang.Object
- net.hydromatic.morel.ast.AstNode

Direct Known Subclasses:

Ast.Aggregate, Ast.DatatypeBind, Ast.Decl, Ast.Exp, Ast.FromStep, Ast.FunBind, Ast.FunMatch, Ast.Match, Ast.OrderItem, Ast.Pat, Ast.TyCon, Ast.Type, Ast.ValBind, Core.BaseNode
```
public abstract class AstNode
extends Object
```
Abstract syntax tree node.

Field Summary

Fields
Modifier and Type Field Description

Op op

Pos pos

Constructor Summary

Constructors
Constructor Description

AstNode(Pos pos, Op op)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract AstNode`	`accept(Shuttle shuttle)`	Accepts a shuttle, calling the `Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal)` method appropriate to the type of this node, and returning the result.
`abstract void`	`accept(Visitor visitor)`	Accepts a visitor, calling the `Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal)` method appropriate to the type of this node, and returning the result.
`String`	`toString()`	Converts this node into an ML string.
`String`	`unparse(AstWriter w)`	Converts this node into an ML string, with a given writer.
`(package private) abstract AstWriter`	`unparse(AstWriter w, int left, int right)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - pos
```
public final Pos pos
```
  - op
```
public final Op op
```
- Constructor Detail
  - AstNode
```
public AstNode(Pos pos,
               Op op)
```
- Method Detail
  - toString
```
public final String toString()
```
    Converts this node into an ML string.
    The purpose of this string is debugging. If you want to generate an expression, use unparse(net.hydromatic.morel.ast.AstWriter), which will insert parentheses as necessary for operator precedence.
    Derived classes may override, but they must produce the same result; so the only reason to override is if they can do it more efficiently.
    
    Overrides:
    
    toString in class Object
  - unparse
```
public final String unparse(AstWriter w)
```
    Converts this node into an ML string, with a given writer.
  - unparse
```
abstract AstWriter unparse(AstWriter w,
                           int left,
                           int right)
```
  - accept
```
public abstract AstNode accept(Shuttle shuttle)
```
    Accepts a shuttle, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.
  - accept
```
public abstract void accept(Visitor visitor)
```
    Accepts a visitor, calling the Shuttle.visit(net.hydromatic.morel.ast.Ast.Literal) method appropriate to the type of this node, and returning the result.