Class NewExpression
java.lang.Object
org.jboss.byteman.rule.RuleElement
org.jboss.byteman.rule.expression.Expression
org.jboss.byteman.rule.expression.NewExpression
Expression which implements a new operation.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate List
<Expression> private int
private int
private List
<Expression> private ArrayInitExpression
private int
private Constructor
private String
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Constructor Summary
ConstructorsConstructorDescriptionNewExpression
(Rule rule, ParseNode token, List<Expression> arguments, List<Expression> arraySizes, ArrayInitExpression arrayInits) -
Method Summary
Modifier and TypeMethodDescriptionvoid
bind()
verify that variables mentioned in this expression are actually available in the supplied bindings listvoid
compile
(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext) getCandidateArgClass
(List<Constructor> candidates, int argIdx) private String
interpret
(HelperAdapter helper) evaluate the expression by interpreting the expression treepruneCandidates
(List<Constructor> candidates, int argIdx, Class argClazz) ensure that all type references in the expression and its component expressions can be resolved, that the type of the expression is well-defined and that it is compatible with the type expected in the context in which it occurs.void
writeTo
(StringWriter stringWriter) Methods inherited from class org.jboss.byteman.rule.expression.Expression
getPos, getType
Methods inherited from class org.jboss.byteman.rule.RuleElement
getBindings, getTypeGroup, rebox, toString
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Field Details
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typeName
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arguments
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arrayDims
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arrayInits
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argumentTypes
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paramTypes
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constructor
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arrayDimCount
private int arrayDimCount -
arrayDimDefinedCount
private int arrayDimDefinedCount -
arrayInitsCount
private int arrayInitsCount
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Constructor Details
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NewExpression
public NewExpression(Rule rule, ParseNode token, List<Expression> arguments, List<Expression> arraySizes, ArrayInitExpression arrayInits)
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Method Details
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bind
verify that variables mentioned in this expression are actually available in the supplied bindings list- Specified by:
bind
in classExpression
- Throws:
TypeException
- if any variable is missing or has the wrong type
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typeCheck
ensure that all type references in the expression and its component expressions can be resolved, that the type of the expression is well-defined and that it is compatible with the type expected in the context in which it occurs.- Specified by:
typeCheck
in classExpression
- Parameters:
expected
- the type expected for the expression in the contxt in which it occurs. this may be void but shoudl not be undefined at the point where type checking is performed.- Returns:
- the expression type
- Throws:
TypeException
- if type checking fails
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getCandidateArgClass
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pruneCandidates
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interpret
evaluate the expression by interpreting the expression tree- Specified by:
interpret
in classExpression
- Parameters:
helper
- an execution context associated with the rule whcih contains a map of current bindings for rule variables and another map of their declared types both of which are indexed by varoable name. This includes entries for the helper (name "-1"), the recipient if the trigger method is not static (name "0") and the trigger method arguments (names "1", ...)- Returns:
- the result of evaluation as an Object
- Throws:
ExecuteException
- if an error occurs during execution
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compile
public void compile(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext) throws CompileException - Specified by:
compile
in classRuleElement
- Throws:
CompileException
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getDescriptor
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writeTo
- Specified by:
writeTo
in classExpression
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