cetus.hir
Class CompoundStatement

java.lang.Object
  cetus.hir.Statement
      cetus.hir.CompoundStatement

All Implemented Interfaces:

Annotatable, Printable, SymbolTable, Traversable, java.lang.Cloneable

Direct Known Subclasses:

ExceptionHandler

public class CompoundStatement
extends Statement
implements SymbolTable

Represents a group of statements that are treated as a single statement.

Field Summary

Fields inherited from class cetus.hir.Statement

annotations, children, line_number, object_print_method, parent

Constructor Summary

CompoundStatement()
Creates an empty compound statement.

Method Summary

void	addDeclaration(Declaration decl) Adds a declaration after the last declaration; this models the C language's requirement that all declarations appear at the beginning of a block.
void	addDeclarationAfter(Declaration ref, Declaration decl) Add a declaration after the reference declaration.
void	addDeclarationBefore(Declaration ref, Declaration decl) Add a declaration before the reference declaration.
void	addStatement(Statement stmt) Adds a statement to the end of this compound statement.
void	addStatementAfter(Statement ref_stmt, Statement new_stmt) Add a new Statement After this Statement
void	addStatementBefore(Statement ref_stmt, Statement new_stmt) Add a new Statement Before this Statement
java.lang.Object	clone()
int	countStatements() Returns the total number of Statements contained within this CompoundStatement.
static void	defaultPrint(CompoundStatement stmt, java.io.OutputStream stream) Prints a statement to a stream.
Declaration	findSymbol(IDExpression name) Retrieves the declaration for a symbol, possibly searching through parent symbol tables.
java.util.List	getParentTables() Returns a list of symbol tables that are parents of this table in the distributed symbol table graph.
java.util.Map<IDExpression,Declaration>	getTable() Provides direct access to the symbol table; it's generally not a good idea to modify this directly.
void	removeChild(Traversable child) Removes a specific child of this statement; some statements do not support this method.
java.lang.String	toString() Returns a string representation of this compound statement.

Methods inherited from class cetus.hir.Statement

annotate, annotateAfter, annotateBefore, annotationToString, containsAnnotation, detach, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getChildren, getParent, getProcedure, print, removeAnnotations, removeAnnotations, setChild, setLineNumber, setParent, setPrintMethod, swapWith, toAnnotatedString, verify, where

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundStatement

public CompoundStatement()

Creates an empty compound statement.

Method Detail

addDeclaration

public void addDeclaration(Declaration decl)

Adds a declaration after the last declaration; this models the C language's requirement that all declarations appear at the beginning of a block.

Specified by:

addDeclaration in interface SymbolTable

Parameters:

decl - The declaration to add.

addDeclarationBefore

public void addDeclarationBefore(Declaration ref,
                                 Declaration decl)

Description copied from interface: SymbolTable

Add a declaration before the reference declaration.

Specified by:

addDeclarationBefore in interface SymbolTable

Parameters:

ref - The reference point.

decl - The declaration to add.

addDeclarationAfter

public void addDeclarationAfter(Declaration ref,
                                Declaration decl)

Description copied from interface: SymbolTable

Add a declaration after the reference declaration.

Specified by:

addDeclarationAfter in interface SymbolTable

Parameters:

ref - The reference point.

decl - The declaration to add.

addStatement

public void addStatement(Statement stmt)

Adds a statement to the end of this compound statement.

Parameters:

stmt - The statement to add.

addStatementBefore

public void addStatementBefore(Statement ref_stmt,
                               Statement new_stmt)

Add a new Statement Before this Statement

Parameters:

new_stmt - The Statement to be added

ref_stmt - Reference point

addStatementAfter

public void addStatementAfter(Statement ref_stmt,
                              Statement new_stmt)

Add a new Statement After this Statement

Parameters:

new_stmt - The Statement to be added

ref_stmt - Reference point

clone

public java.lang.Object clone()

Overrides:

clone in class Statement

countStatements

public int countStatements()

Returns the total number of Statements contained within this CompoundStatement.

Returns:

the number of statements within this compound statement

defaultPrint

public static void defaultPrint(CompoundStatement stmt,
                                java.io.OutputStream stream)

Prints a statement to a stream.

Parameters:

stmt - The statement to print.

stream - The stream on which to print the statement.

toString

public java.lang.String toString()

Returns a string representation of this compound statement. Printing of children's annotations are controlled in this method.

Specified by:

toString in class Statement

findSymbol

public Declaration findSymbol(IDExpression name)

Description copied from interface: SymbolTable

Retrieves the declaration for a symbol, possibly searching through parent symbol tables.

Specified by:

findSymbol in interface SymbolTable

Parameters:

name - The name of the symbol.

getParentTables

public java.util.List getParentTables()

Description copied from interface: SymbolTable

Returns a list of symbol tables that are parents of this table in the distributed symbol table graph. A list is necessary because representing multiple inheritence in C++ requires it. Note that the parent tables are not necessarily tables of the immediate parent. The list is all symbol tables enclosing this object which appear at the same level such that no other symbol tables appear between this object and those tables.

Specified by:

getParentTables in interface SymbolTable

Returns:

a List of SymbolTables.

getTable

public java.util.Map<IDExpression,Declaration> getTable()

Description copied from interface: SymbolTable

Provides direct access to the symbol table; it's generally not a good idea to modify this directly.

Specified by:

getTable in interface SymbolTable

Returns:

a map of IDExpressions to Declarations.

removeChild

public void removeChild(Traversable child)

Description copied from class: Statement

Removes a specific child of this statement; some statements do not support this method.

Specified by:

removeChild in interface Traversable

Overrides:

removeChild in class Statement

Parameters:

child - The child to remove.