orc.ast.oil
Class Silent

java.lang.Object
  orc.ast.oil.Expr
      orc.ast.oil.Silent

public class Silent
extends Expr

Constructor Summary

Silent()

Method Summary

<E> E	accept(Visitor<E> visitor)
void	addIndices(java.util.Set<java.lang.Integer> indices, int depth) If this expression has any indices which are >= depth, add (index - depth) to the index set accumulator.
Node	compile(Node output) Compiles an oil syntax tree into an execution graph.
java.lang.String	toString()
void	typecheck(Type t, Env<Type> ctx)
Type	typesynth(Env<Type> ctx)

Methods inherited from class orc.ast.oil.Expr

freeVars

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Silent

public Silent()

Method Detail

compile

public Node compile(Node output)

Description copied from class: Expr

Compiles an oil syntax tree into an execution graph. Every node is compiled relative to an "output" node that represents the "rest of the program". Thus the tree of compiled nodes is created bottom up.

Specified by:

compile in class Expr

Parameters:

output - This is the node to which output (publications) will be directed.

Returns:

A new node.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

accept

public <E> E accept(Visitor<E> visitor)

Specified by:

accept in class Expr

typesynth

public Type typesynth(Env<Type> ctx)

Specified by:

typesynth in class Expr

typecheck

public void typecheck(Type t,
                      Env<Type> ctx)

Overrides:

typecheck in class Expr

addIndices

public void addIndices(java.util.Set<java.lang.Integer> indices,
                       int depth)

Description copied from class: Expr

If this expression has any indices which are >= depth, add (index - depth) to the index set accumulator. The depth increases each time this method recurses through a binder. The default implementation is to assume the expression has no free variables, and thus do nothing. Expressions which contain variables or subexpressions override this behavior.

Specified by:

addIndices in class Expr

Parameters:

indices - The index set accumulator.

depth - The minimum index for a free variable.