Class ForWhileElement

java.lang.Object

simula.compiler.syntaxClass.SyntaxClass

simula.compiler.syntaxClass.statement.ForListElement

simula.compiler.syntaxClass.statement.ForWhileElement

public class ForWhileElement
extends ForListElement

Utility class: For-list While element.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Expression	expr2	The second expression.

Fields inherited from class simula.compiler.syntaxClass.statement.ForListElement

expr1, forStatement

Fields inherited from class simula.compiler.syntaxClass.SyntaxClass

CHECKED, lineNumber, OBJECT_SEQU

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ForWhileElement()	Default constructor used by Attribute File I/O
	ForWhileElement(ForStatement forStatement, Expression expr1, Expression expr2)	Create a new WhileElement.

Method Summary

Modifier and Type	Method	Description
void	buildByteCode(CodeBuilder codeBuilder, VariableExpression controlVariable)	Build byte code.
void	doChecking()	Perform semantic checking.
void	doSimplifiedJavaCoding()	Perform simplified JavaCoding.
void	doSingleElementByteCoding(CodeBuilder codeBuilder)	Build SingleElement ByteCoding
String	edCode(String classIdent, Type xType)	Edit Java source code for this ForListElement.
ForListElement	isOptimisable()	Checks if this ForListElement can be optimized.
static ForWhileElement	readObject(AttributeInputStream inpt)	Read and return a ForWhileElement object.
String	toString()
void	writeObject(AttributeOutputStream oupt)	Write a SyntaxClass object to a AttributeOutputStream.

Methods inherited from class simula.compiler.syntaxClass.SyntaxClass

ASSERT_SEMANTICS_CHECKED, buildByteCode, doDeclarationCoding, doJavaCoding, edIndent, edTreeIndent, IS_SEMANTICS_CHECKED, print, printTree, SET_SEMANTICS_CHECKED, setLineNumber, toJavaCode

Methods inherited from class java.lang.Object

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

Field Details

expr2

Expression expr2

The second expression.

Constructor Details

ForWhileElement

public ForWhileElement(ForStatement forStatement,
 Expression expr1,
 Expression expr2)

Create a new WhileElement.

Parameters:

forStatement - the ForStatement

expr1 - first expression

expr2 - second expression

ForWhileElement

private ForWhileElement()

Default constructor used by Attribute File I/O

Method Details

doChecking

public void doChecking()

Description copied from class: ForListElement

Perform semantic checking.

Overrides:

doChecking in class ForListElement

edCode

public String edCode(String classIdent,
 Type xType)

Description copied from class: ForListElement

Edit Java source code for this ForListElement.

Overrides:

edCode in class ForListElement

Parameters:

classIdent - Java class identifier

xType - control variable's type

Returns:

the resulting Java source code for this ForListElement

isOptimisable

public ForListElement isOptimisable()

Description copied from class: ForListElement

Checks if this ForListElement can be optimized.

Overrides:

isOptimisable in class ForListElement

Returns:

this ForListElement if it can be optimized

doSimplifiedJavaCoding

public void doSimplifiedJavaCoding()

Description copied from class: ForListElement

Perform simplified JavaCoding.

Overrides:

doSimplifiedJavaCoding in class ForListElement

doSingleElementByteCoding

public void doSingleElementByteCoding(CodeBuilder codeBuilder)

Description copied from class: ForListElement

Build SingleElement ByteCoding

Overrides:

doSingleElementByteCoding in class ForListElement

Parameters:

codeBuilder - the codeBuilder to use.

buildByteCode

public void buildByteCode(CodeBuilder codeBuilder,
 VariableExpression controlVariable)

Description copied from class: ForListElement

Build byte code.

Overrides:

buildByteCode in class ForListElement

Parameters:

codeBuilder - the codeBuilder to use.

controlVariable - the ForStatement's controlVariable.

toString

public String toString()

Overrides:

toString in class ForListElement

writeObject

public void writeObject(AttributeOutputStream oupt)
                 throws IOException

Description copied from class: SyntaxClass

Write a SyntaxClass object to a AttributeOutputStream.

Overrides:

writeObject in class ForListElement

Parameters:

oupt - the AttributeOutputStream to write to.

Throws:

IOException - if something went wrong.

readObject

public static ForWhileElement readObject(AttributeInputStream inpt)
                                  throws IOException

Read and return a ForWhileElement object.

Parameters:

inpt - the AttributeInputStream to read from

Returns:

the ForWhileElement object read from the stream.

Throws:

IOException - if something went wrong.