polyglot.ast

Class AmbExpr_c

java.lang.Object

polyglot.ast.Node_c

polyglot.ast.Term_c

polyglot.ast.Expr_c

polyglot.ast.AmbExpr_c

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, AmbExpr, Ambiguous, Expr, ExprOps, Node, NodeOps, Prefix, Receiver, Term, TermOps, Typed, Copy<Node>

public class AmbExpr_c
extends Expr_c
implements AmbExpr

An AmbExpr is an ambiguous AST node composed of a single identifier that must resolve to an expression.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface polyglot.util.Copy

Copy.Util

Nested classes/interfaces inherited from interface polyglot.ast.Term

Term.Instance

Field Summary

Fields

Modifier and Type	Field and Description
protected Id	name

Fields inherited from class polyglot.ast.Expr_c

type

Fields inherited from class polyglot.ast.Term_c

exceptions, reachable

Fields inherited from class polyglot.ast.Node_c

del, error, ext, position

Fields inherited from interface polyglot.ast.Term

ENTRY, EXIT

Constructor Summary

Constructors

Constructor and Description
AmbExpr_c(Position pos, Id name)
AmbExpr_c(Position pos, Id name, Ext ext)

Method Summary

Methods

Modifier and Type	Method and Description
<T> java.util.List<T>	acceptCFG(CFGBuilder<?> v, java.util.List<T> succs) Visit this term in evaluation order, calling v.edge() for each successor in succs, if data flows on that edge.
Node	copy(NodeFactory nf) Produce a copy of this node using the given NodeFactory.
Node	disambiguate(AmbiguityRemover ar) Remove any remaining ambiguities from the AST.
Node	exceptionCheck(ExceptionChecker ec) Check that exceptions are properly propagated throughout the AST.
Term	firstChild() Return the first direct subterm performed when evaluating this term.
Id	id() Get the name of the expression.
AmbExpr	id(Id id) Set the name of the expression.
protected <N extends AmbExpr_c> N	id(N n, Id name)
java.lang.String	name() Get the name of the expression.
AmbExpr	name(java.lang.String name) Set the name of the expression.
Precedence	precedence() Get the precedence of the expression.
void	prettyPrint(CodeWriter w, PrettyPrinter tr) Pretty-print the AST using the given CodeWriter.
protected <N extends AmbExpr_c> N	reconstruct(N n, Id name) Reconstruct the expression.
java.lang.String	toString()
Node	typeCheck(TypeChecker tc) Type check the AST.
Node	visitChildren(NodeVisitor v) Visit the children of the node.

Methods inherited from class polyglot.ast.Expr_c

booleanValue, buildTypes, byteValue, charValue, constantValue, constantValue, constantValueSet, constantValueSet, doubleValue, dump, extRewrite, floatValue, intValue, isConstant, isConstant, isTypeChecked, lastLang, longValue, printSubExpr, printSubExpr, shortValue, stringValue, type, type, type

Methods inherited from class polyglot.ast.Term_c

exceptions, exceptions, exceptions, listChild, reachable, reachable, reachable

Methods inherited from class polyglot.ast.Node_c

addDecls, buildTypesEnter, checkConstants, childExpectedType, copy, copy, copyIfNeeded, del, del, disambiguateEnter, disambiguateOverride, dump, dump, dump, dump, enterChildScope, enterScope, error, error, error, exceptionCheckEnter, ext, ext, ext, ext, extRewriteEnter, isDisambiguated, lang, position, position, position, prettyPrint, prettyPrint, prettyPrint, prettyPrint, print, printBlock, printSubStmt, throwTypes, translate, typeCheckEnter, typeCheckOverride, visit, visitChild, visitEdge, visitList

Methods inherited from class java.lang.Object

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

Methods inherited from interface polyglot.ast.Expr

constantValue, constantValueSet, isConstant, printSubExpr, printSubExpr, type

Methods inherited from interface polyglot.ast.Node

del, del, dump, error, error, ext, ext, ext, ext, isDisambiguated, isTypeChecked, position, position, visit, visitEdge

Methods inherited from interface polyglot.ast.NodeOps

addDecls, buildTypes, buildTypesEnter, checkConstants, childExpectedType, copy, disambiguateEnter, disambiguateOverride, dump, dump, dump, dump, enterChildScope, enterScope, exceptionCheckEnter, extRewrite, extRewriteEnter, lang, prettyPrint, prettyPrint, prettyPrint, prettyPrint, throwTypes, translate, typeCheckEnter, typeCheckOverride, visitChild, visitList

Methods inherited from interface polyglot.util.Copy

copy

Methods inherited from interface polyglot.ast.Typed

type

Methods inherited from interface polyglot.ast.Term

exceptions, exceptions, reachable, reachable

Field Detail

name

protected Id name

Constructor Detail

AmbExpr_c

public AmbExpr_c(Position pos,
         Id name)

AmbExpr_c

public AmbExpr_c(Position pos,
         Id name,
         Ext ext)

Method Detail

precedence

public Precedence precedence()

Description copied from interface: Expr

Get the precedence of the expression.

Specified by:

precedence in interface Expr

Overrides:

precedence in class Expr_c

id

public Id id()

Description copied from interface: AmbExpr

Get the name of the expression.

Specified by:

id in interface AmbExpr

id

public AmbExpr id(Id id)

Description copied from interface: AmbExpr

Set the name of the expression.

Specified by:

id in interface AmbExpr

id

protected <N extends AmbExpr_c> N id(N n,
                         Id name)

name

public java.lang.String name()

Description copied from interface: AmbExpr

Get the name of the expression.

Specified by:

name in interface AmbExpr

name

public AmbExpr name(java.lang.String name)

Description copied from interface: AmbExpr

Set the name of the expression.

Specified by:

name in interface AmbExpr

reconstruct

protected <N extends AmbExpr_c> N reconstruct(N n,
                                  Id name)

Reconstruct the expression.

visitChildren

public Node visitChildren(NodeVisitor v)

Description copied from interface: NodeOps

Visit the children of the node.

Specified by:

visitChildren in interface NodeOps

Overrides:

visitChildren in class Node_c

Parameters:

v - The visitor that will traverse/rewrite the AST.

Returns:

A new AST if a change was made, or this.

disambiguate

public Node disambiguate(AmbiguityRemover ar)
                  throws SemanticException

Description copied from interface: NodeOps

Remove any remaining ambiguities from the AST. This method is called by the leave() method of the visitor. The method should perform work that should be done after visiting the children of the node. The method may return this or a new copy of the node which will be installed as a child of the node's parent. The node should not assume that its children have been disambiguated. If it depends on a child being disambiguated, it may just return this without doing any work.

Specified by:

disambiguate in interface NodeOps

Overrides:

disambiguate in class Node_c

Parameters:

ar - The visitor which disambiguates.

Throws:

SemanticException

typeCheck

public Node typeCheck(TypeChecker tc)
               throws SemanticException

Description copied from interface: NodeOps

Type check the AST. This method is called by the leave() method of the visitor. The method should perform work that should be done after visiting the children of the node. The method may return this or a new copy of the node which will be installed as a child of the node's parent.

Specified by:

typeCheck in interface NodeOps

Overrides:

typeCheck in class Node_c

Parameters:

tc - The type checking visitor.

Throws:

SemanticException

exceptionCheck

public Node exceptionCheck(ExceptionChecker ec)
                    throws SemanticException

Description copied from interface: NodeOps

Check that exceptions are properly propagated throughout the AST. This method is called by the leave() method of the visitor. The method should perform work that should be done after visiting the children of the node. The method may return this or a new copy of the node which will be installed as a child of the node's parent.

Specified by:

exceptionCheck in interface NodeOps

Overrides:

exceptionCheck in class Term_c

Parameters:

ec - The visitor.

Throws:

SemanticException

prettyPrint

public void prettyPrint(CodeWriter w,
               PrettyPrinter tr)

Description copied from class: Node_c

Pretty-print the AST using the given CodeWriter.

Specified by:

prettyPrint in interface NodeOps

Overrides:

prettyPrint in class Node_c

Parameters:

w - The code writer to which to write.

tr - The pretty printer. This is not a visitor.

toString

public java.lang.String toString()

Overrides:

toString in class Node_c

firstChild

public Term firstChild()

Description copied from interface: TermOps

Return the first direct subterm performed when evaluating this term. If this term has no subterms, this should return null. This method is similar to the deprecated entry(), but it should *not* recursively drill down to the innermost subterm. The direct child visited first in this term's dataflow should be returned.

Specified by:

firstChild in interface TermOps

Specified by:

firstChild in class Term_c

acceptCFG

public <T> java.util.List<T> acceptCFG(CFGBuilder<?> v,
                              java.util.List<T> succs)

Description copied from interface: TermOps

Visit this term in evaluation order, calling v.edge() for each successor in succs, if data flows on that edge.

Specified by:

acceptCFG in interface TermOps

Specified by:

acceptCFG in class Term_c

copy

public Node copy(NodeFactory nf)

Description copied from interface: NodeOps

Produce a copy of this node using the given NodeFactory.

Specified by:

copy in interface NodeOps

Overrides:

copy in class Node_c