org.expressionj.expr

Class AbstractScalarAssignment

java.lang.Object

org.expressionj.model.AbstractExpression

org.expressionj.expr.AbstractUnaryExpression

org.expressionj.expr.AbstractAssignment

org.expressionj.expr.AbstractScalarAssignment

All Implemented Interfaces:

java.lang.Cloneable, Expression, ExpressionType, UnaryExpression

Direct Known Subclasses:

ExprAddAssignment, ExprAffectation, ExprDivAssignment, ExprMultAssignment, ExprSubAssignment

public abstract class AbstractScalarAssignment
extends AbstractAssignment

An abstract assignment.

Field Summary

Fields

Modifier and Type	Field and Description
protected AbstractValue	resultValue

Fields inherited from class org.expressionj.expr.AbstractAssignment

isLocal

Fields inherited from class org.expressionj.expr.AbstractUnaryExpression

expr

Fields inherited from class org.expressionj.model.AbstractExpression

block, root

Fields inherited from interface org.expressionj.model.ExpressionType

STRUCT_ARRAY, STRUCT_SCALAR, STRUCT_STRUCTURE, TYPE_BOOL, TYPE_DYNAMIC, TYPE_FLOAT, TYPE_INTEGER, TYPE_NUMERIC, TYPE_STRING, TYPE_UNDEF

Constructor Summary

Constructors

Constructor and Description
AbstractScalarAssignment(Expression root)

Method Summary

Modifier and Type	Method and Description
Expression	getExpression() Return the associated expression.
AbstractValue	getResult()
short	getResultStructure() Return the structure of the result for the expression.
short	getResultType() Return the type of the result for the expression.
Variable	getVariable(java.lang.String varName) Return a variable declared by the expression.
void	setExpression(Expression expr)
void	setResult(AbstractValue resultValue)
void	setResult(AbstractValue resultValue, boolean isCreated) Set the result.

Methods inherited from class org.expressionj.expr.AbstractAssignment

addLocalVariable, addLocalVariable, addVariable, addVariable, isCreated, isLocal

Methods inherited from class org.expressionj.expr.AbstractUnaryExpression

getVariables

Methods inherited from class org.expressionj.model.AbstractExpression

clone, evalAsBoolean, evalAsFloat, evalAsInt, getParentBlock, getRoot, setParentBlock, setRoot

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.expressionj.model.Expression

clone, eval, evalAsBoolean, evalAsFloat, evalAsInt, getExpressionName, getLocalVariable, getLocalVariables, getParentBlock, getRoot, getVariable, getVariables, hasVariable, hasVariable, removeVariable, setParentBlock

Field Detail

resultValue

protected AbstractValue resultValue

Constructor Detail

AbstractScalarAssignment

public AbstractScalarAssignment(Expression root)

Method Detail

setResult

public void setResult(AbstractValue resultValue,
                      boolean isCreated)

Set the result.

Parameters:

resultValue - the result value

isCreated - true if the assignment assign a local variable

setResult

public void setResult(AbstractValue resultValue)

getResult

public AbstractValue getResult()

getResultType

public short getResultType()

Description copied from interface: Expression

Return the type of the result for the expression. The type can be:

• ExpressionType.TYPE_INTEGER: integer
• ExpressionType.TYPE_FLOAT: float
• ExpressionType.TYPE_NUMERIC: integer or float value. The runtime actual type may depend on the expression arguments
• ExpressionType.TYPE_STRING: string
• ExpressionType.TYPE_DYNAMIC: dynamic type. The runtime actual type may depend on the expression arguments
• ExpressionType.TYPE_UNDEF: undefined type. The default type, characteristic of an error if entountered.

Returns:

the type of the result for the expression

getResultStructure

public short getResultStructure()

Description copied from interface: Expression

Return the structure of the result for the expression. The structure can be:

• ExpressionType.STRUCT_SCALAR: a scalar value
• ExpressionType.STRUCT_ARRAY: an array value

Returns:

he structure of the result for the expression

getVariable

public Variable getVariable(java.lang.String varName)

Description copied from interface: Expression

Return a variable declared by the expression.

Parameters:

varName - the variable name

Returns:

the variable

setExpression

public void setExpression(Expression expr)

getExpression

public Expression getExpression()

Description copied from interface: Expression

Return the associated expression. Return this by default.

Returns:

the associated expression