Class NewExpression
- java.lang.Object
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- org.jboss.byteman.rule.RuleElement
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- org.jboss.byteman.rule.expression.Expression
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- org.jboss.byteman.rule.expression.NewExpression
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public class NewExpression extends Expression
Expression which implements a new operation.
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Field Summary
Fields Modifier and Type Field Description private java.util.List<Expression>
arguments
private java.util.List<Type>
argumentTypes
private int
arrayDimCount
private int
arrayDimDefinedCount
private java.util.List<Expression>
arrayDims
private ArrayInitExpression
arrayInits
private int
arrayInitsCount
private java.lang.reflect.Constructor
constructor
private java.util.List<Type>
paramTypes
private java.lang.String
typeName
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Constructor Summary
Constructors Constructor Description NewExpression(Rule rule, ParseNode token, java.util.List<Expression> arguments, java.util.List<Expression> arraySizes, ArrayInitExpression arrayInits)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
bind()
verify that variables mentioned in this expression are actually available in the supplied bindings listvoid
compile(org.objectweb.asm.MethodVisitor mv, CompileContext compileContext)
java.lang.Class
getCandidateArgClass(java.util.List<java.lang.reflect.Constructor> candidates, int argIdx)
private java.lang.String
getDescriptor()
java.lang.Object
interpret(HelperAdapter helper)
evaluate the expression by interpreting the expression treejava.util.List<java.lang.reflect.Constructor>
pruneCandidates(java.util.List<java.lang.reflect.Constructor> candidates, int argIdx, java.lang.Class argClazz)
Type
typeCheck(Type expected)
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(java.io.StringWriter stringWriter)
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Methods inherited from class org.jboss.byteman.rule.expression.Expression
getPos, getType
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Methods inherited from class org.jboss.byteman.rule.RuleElement
getBindings, getTypeGroup, rebox, toString
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Field Detail
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typeName
private java.lang.String typeName
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arguments
private java.util.List<Expression> arguments
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arrayDims
private java.util.List<Expression> arrayDims
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arrayInits
private ArrayInitExpression arrayInits
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argumentTypes
private java.util.List<Type> argumentTypes
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paramTypes
private java.util.List<Type> paramTypes
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constructor
private java.lang.reflect.Constructor constructor
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arrayDimCount
private int arrayDimCount
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arrayDimDefinedCount
private int arrayDimDefinedCount
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arrayInitsCount
private int arrayInitsCount
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Constructor Detail
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NewExpression
public NewExpression(Rule rule, ParseNode token, java.util.List<Expression> arguments, java.util.List<Expression> arraySizes, ArrayInitExpression arrayInits)
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Method Detail
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bind
public void bind() throws TypeException
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
public Type typeCheck(Type expected) throws TypeException
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
public java.lang.Class getCandidateArgClass(java.util.List<java.lang.reflect.Constructor> candidates, int argIdx)
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pruneCandidates
public java.util.List<java.lang.reflect.Constructor> pruneCandidates(java.util.List<java.lang.reflect.Constructor> candidates, int argIdx, java.lang.Class argClazz)
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interpret
public java.lang.Object interpret(HelperAdapter helper) throws ExecuteException
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
private java.lang.String getDescriptor()
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writeTo
public void writeTo(java.io.StringWriter stringWriter)
- Specified by:
writeTo
in classExpression
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