polyglot.ast
Class Initializer_c

java.lang.Object
  polyglot.ast.Node_c
      polyglot.ast.Term_c
          polyglot.ast.Initializer_c

All Implemented Interfaces:

java.lang.Cloneable, ClassMember, CodeBlock, CodeDecl, CodeNode, Initializer, JL, Node, NodeOps, Term, Copy

public class Initializer_c
extends Term_c
implements Initializer

An Initializer is an immutable representation of an initializer block in a Java class (which appears outside of any method). Such a block is executed before the code for any of the constructors. Such a block can optionally be static, in which case it is executed when the class is loaded.

Field Summary

protected Block	body
protected Flags	flags
protected InitializerInstance	ii

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

Initializer_c(Position pos, Flags flags, Block body)

Method Summary

java.util.List	acceptCFG(CFGBuilder v, java.util.List succs) Visit this term in evaluation order.
Block	body() Get the body of the initializer.
CodeBlock	body(Block body) Set the body of the initializer.
Node	buildTypes(TypeBuilder tb) Build type objects for the method.
NodeVisitor	buildTypesEnter(TypeBuilder tb) Collects classes, methods, and fields from the AST rooted at this node and constructs type objects for these.
Term	codeBody() The body of the method, constructor, initializer, or field initializer.
CodeInstance	codeInstance() The CodeInstance of the method, constructor, or initializer.
Node	copy(NodeFactory nf) Produce a copy of this node using the given NodeFactory.
void	dump(CodeWriter w) Dump the AST node for debugging purposes.
Context	enterScope(Context c) Push a new scope upon entering this node, and add any declarations to the context that should be in scope when visiting children of this node.
NodeVisitor	exceptionCheckEnter(ExceptionChecker ec) Check that exceptions are properly propagated throughout the AST.
Term	firstChild() Return the first (sub)term performed when evaluating this term.
Flags	flags() Get the flags of the initializer.
Initializer	flags(Flags flags) Set the flags of the initializer.
InitializerInstance	initializerInstance() Get the initializer instance of the initializer.
Initializer	initializerInstance(InitializerInstance ii) Set the initializer instance of the initializer.
boolean	isDisambiguated()
MemberInstance	memberInstance()
void	prettyPrint(CodeWriter w, PrettyPrinter tr) Write the initializer to an output file.
protected Initializer_c	reconstruct(Block body) Reconstruct the initializer.
java.lang.String	toString()
Node	typeCheck(TypeChecker tc) Type check the initializer.
Node	visitChildren(NodeVisitor v) Visit the children of the initializer.

Methods inherited from class polyglot.ast.Term_c

exceptionCheck, exceptions, exceptions, listChild, reachable, reachable

Methods inherited from class polyglot.ast.Node_c

addDecls, checkConstants, childExpectedType, copy, copy, del, del, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, enterChildScope, error, error, ext, ext, ext, ext, init, isTypeChecked, node, position, position, 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.Term

exceptions, exceptions, reachable, reachable

Methods inherited from interface polyglot.ast.Node

childExpectedType, del, del, error, error, ext, ext, ext, ext, isTypeChecked, position, position, visit, visitChild, visitEdge, visitList

Methods inherited from interface polyglot.ast.JL

init, node

Methods inherited from interface polyglot.ast.NodeOps

addDecls, checkConstants, copy, disambiguate, disambiguateEnter, disambiguateOverride, dump, dump, enterChildScope, exceptionCheck, prettyPrint, prettyPrint, throwTypes, translate, typeCheckEnter, typeCheckOverride

Methods inherited from interface polyglot.util.Copy

copy

Field Detail

flags

protected Flags flags

body

protected Block body

ii

protected InitializerInstance ii

Constructor Detail

Initializer_c

public Initializer_c(Position pos,
                     Flags flags,
                     Block body)

Method Detail

isDisambiguated

public boolean isDisambiguated()

Specified by:

isDisambiguated in interface Node

Overrides:

isDisambiguated in class Node_c

Returns:

true if the all type information for the node (but not necessarily for the node's children) is unambiguous.

memberInstance

public MemberInstance memberInstance()

Specified by:

memberInstance in interface ClassMember

flags

public Flags flags()

Get the flags of the initializer.

Specified by:

flags in interface Initializer

flags

public Initializer flags(Flags flags)

Set the flags of the initializer.

Specified by:

flags in interface Initializer

initializerInstance

public InitializerInstance initializerInstance()

Get the initializer instance of the initializer.

Specified by:

initializerInstance in interface Initializer

codeInstance

public CodeInstance codeInstance()

Description copied from interface: CodeNode

The CodeInstance of the method, constructor, or initializer.

Specified by:

codeInstance in interface CodeNode

initializerInstance

public Initializer initializerInstance(InitializerInstance ii)

Set the initializer instance of the initializer.

Specified by:

initializerInstance in interface Initializer

codeBody

public Term codeBody()

Description copied from interface: CodeNode

The body of the method, constructor, initializer, or field initializer.

Specified by:

codeBody in interface CodeNode

body

public Block body()

Get the body of the initializer.

Specified by:

body in interface CodeBlock

body

public CodeBlock body(Block body)

Set the body of the initializer.

Specified by:

body in interface CodeBlock

reconstruct

protected Initializer_c reconstruct(Block body)

Reconstruct the initializer.

visitChildren

public Node visitChildren(NodeVisitor v)

Visit the children of the initializer.

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.

enterScope

public Context enterScope(Context c)

Description copied from class: Node_c

Push a new scope upon entering this node, and add any declarations to the context that should be in scope when visiting children of this node.

Specified by:

enterScope in interface NodeOps

Overrides:

enterScope in class Node_c

Parameters:

c - the current Context

Returns:

the Context to be used for visiting this node.

buildTypesEnter

public NodeVisitor buildTypesEnter(TypeBuilder tb)
                            throws SemanticException

Description copied from interface: NodeOps

Collects classes, methods, and fields from the AST rooted at this node and constructs type objects for these. These type objects may be ambiguous. Inserts classes into the TypeSystem. This method is called by the enter() method of the visitor. The * method should perform work that should be done before visiting the children of the node. The method may return this or a new copy of the node on which visitChildren() and leave() will be invoked.

Specified by:

buildTypesEnter in interface NodeOps

Overrides:

buildTypesEnter in class Node_c

Parameters:

tb - The visitor which adds new type objects to the TypeSystem.

Throws:

SemanticException

firstChild

public Term firstChild()

Return the first (sub)term performed when evaluating this term.

Specified by:

firstChild in interface Term

acceptCFG

public java.util.List acceptCFG(CFGBuilder v,
                                java.util.List succs)

Description copied from class: Term_c

Visit this term in evaluation order.

Specified by:

acceptCFG in interface Term

Specified by:

acceptCFG in class Term_c

buildTypes

public Node buildTypes(TypeBuilder tb)
                throws SemanticException

Build type objects for the method.

Specified by:

buildTypes in interface NodeOps

Overrides:

buildTypes in class Node_c

Parameters:

tb - The visitor which adds new type objects to the TypeSystem.

Throws:

SemanticException

typeCheck

public Node typeCheck(TypeChecker tc)
               throws SemanticException

Type check the initializer.

Specified by:

typeCheck in interface NodeOps

Overrides:

typeCheck in class Node_c

Parameters:

tc - The type checking visitor.

Throws:

SemanticException

exceptionCheckEnter

public NodeVisitor exceptionCheckEnter(ExceptionChecker ec)
                                throws SemanticException

Description copied from interface: NodeOps

Check that exceptions are properly propagated throughout the AST. This method is called by the enter() method of the visitor. The * method should perform work that should be done before visiting the children of the node. The method may return this or a new copy of the node on which visitChildren() and leave() will be invoked.

Specified by:

exceptionCheckEnter in interface NodeOps

Overrides:

exceptionCheckEnter in class Node_c

Parameters:

ec - The visitor.

Throws:

SemanticException

prettyPrint

public void prettyPrint(CodeWriter w,
                        PrettyPrinter tr)

Write the initializer to an output file.

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.

dump

public void dump(CodeWriter w)

Description copied from interface: Node

Dump the AST node for debugging purposes.

Specified by:

dump in interface Node

Overrides:

dump in class Node_c

toString

public java.lang.String toString()

Overrides:

toString in class Node_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