com.wewebu.expression.language
Class OwExprBinaryExpression
java.lang.Object
com.wewebu.expression.language.OwExprExpression
com.wewebu.expression.language.OwExprBinaryExpression
public class OwExprBinaryExpression
- extends OwExprExpression
Binary expression implementation (a left-operand-operator-right-operand expression).
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All rights reserved.
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OwExprBinaryExpression
public OwExprBinaryExpression(OwExprSymbolTable symTable_p,
OwExprErrorTable errorTable_p,
OwExprExpression operand1_p,
OwExprBinaryOperator operator_p,
OwExprExpression operand2_p)
- Constructor
- Parameters:
symTable_p
- global symbol tableerrorTable_p
- global error tableoperand1_p
- left side operandoperator_p
- operatoroperand2_p
- right side operand
evaluate
public OwExprValue evaluate(OwExprScope scope_p)
throws OwExprEvaluationException
- Evaluates this expression on the
OwExprScope
(scope) provided as argument.
- Specified by:
evaluate
in class OwExprExpression
- Parameters:
scope_p
- external scope to be used during evaluation
- Returns:
- the value resulted from the evaluation of this expression
- Throws:
OwExprEvaluationException
- in case of evaluation failure
type
public OwExprExpressionType type()
throws OwExprTypeMissmatchException
- Type check method.
If type errors are encountered during type computation the
OwExprExpression.m_typeError
should
be set to true
- Specified by:
type
in class OwExprExpression
- Returns:
- the expression type for this expression
- Throws:
OwExprTypeMissmatchException
- if type errors are ecountrede during type computation
toString
public String toString()
- Overrides:
toString
in class Object
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