orc.ast.oil
Class WithLocation

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

All Implemented Interfaces:

Located

public class WithLocation
extends Expr
implements Located

Annotate an expression with a source location.

Author:

quark

Field Summary

Expr	expr
SourceLocation	location

Constructor Summary

WithLocation(Expr expr, SourceLocation location)

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.
SourceLocation	getSourceLocation()
java.lang.String	toString()
Type	typesynth(Env<Type> ctx)

Methods inherited from class orc.ast.oil.Expr

freeVars, typecheck

Methods inherited from class java.lang.Object

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

Field Detail

expr

public final Expr expr

location

public final SourceLocation location

Constructor Detail

WithLocation

public WithLocation(Expr expr,
                    SourceLocation location)

Method Detail

getSourceLocation

public SourceLocation getSourceLocation()

Specified by:

getSourceLocation in interface Located

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.

accept

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

Specified by:

accept in class Expr

typesynth

public Type typesynth(Env<Type> ctx)
               throws TypeException

Specified by:

typesynth in class Expr

Throws:

TypeException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

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.