Class UnaryExpression
- java.lang.Object
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- org.htmlunit.corejs.javascript.Node
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- org.htmlunit.corejs.javascript.ast.AstNode
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- org.htmlunit.corejs.javascript.ast.UnaryExpression
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public class UnaryExpression extends AstNode
AST node representing unary operators such astypeof
anddelete
. The type field is set to the appropriate Token type for the operator. The node length spans from the operator to the end of the operand.The
default xml namespace = <expr>
statement in E4X (JavaScript 1.6) is represented as aUnaryExpression
of node typeToken.DEFAULTNAMESPACE
, wrapped with anExpressionStatement
.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.ast.AstNode
AstNode.DebugPrintVisitor, AstNode.PositionComparator
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Nested classes/interfaces inherited from class org.htmlunit.corejs.javascript.Node
Node.NodeIterator
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Field Summary
Fields Modifier and Type Field Description private AstNode
operand
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Fields inherited from class org.htmlunit.corejs.javascript.ast.AstNode
inlineComment, length, parent, position
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Fields inherited from class org.htmlunit.corejs.javascript.Node
ARROW_FUNCTION_PROP, ATTRIBUTE_FLAG, BOTH, CASEARRAY_PROP, CATCH_SCOPE_PROP, CONTROL_BLOCK_PROP, DECR_FLAG, DESCENDANTS_FLAG, DESTRUCTURING_ARRAY_LENGTH, DESTRUCTURING_NAMES, DESTRUCTURING_PARAMS, DIRECTCALL_PROP, END_DROPS_OFF, END_RETURNS, END_RETURNS_VALUE, END_UNREACHED, END_YIELDS, EXPRESSION_CLOSURE_PROP, first, FUNCTION_PROP, GENERATOR_END_PROP, INCRDECR_PROP, ISNUMBER_PROP, JSDOC_PROP, LABEL_ID_PROP, last, LAST_PROP, LEFT, lineno, LOCAL_BLOCK_PROP, LOCAL_PROP, MEMBER_TYPE_PROP, NAME_PROP, next, NON_SPECIALCALL, OBJECT_IDS_PROP, PARENTHESIZED_PROP, POST_FLAG, PROPERTY_FLAG, propListHead, REGEXP_PROP, RIGHT, SHORTHAND_PROPERTY_NAME, SKIP_INDEXES_PROP, SPECIALCALL_EVAL, SPECIALCALL_PROP, SPECIALCALL_WITH, TARGETBLOCK_PROP, TEMPLATE_LITERAL_PROP, TRAILING_COMMA, type, VARIABLE_PROP
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Constructor Summary
Constructors Constructor Description UnaryExpression()
UnaryExpression(int pos)
UnaryExpression(int pos, int len)
Constructs a new UnaryExpressionUnaryExpression(int operator, int operatorPosition, AstNode operand)
Constructs a new UnaryExpression with the specified operator and operand.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AstNode
getOperand()
int
getOperator()
Returns operator token – alias forNode.getType()
void
setOperand(AstNode operand)
Sets the operand, and sets its parent to be this node.void
setOperator(int operator)
Sets operator – same asNode.setType(int)
, but throws an exception if the operator is invalidjava.lang.String
toSource(int depth)
Emits source code for this node.void
visit(NodeVisitor v)
Visits this node, then the operand.-
Methods inherited from class org.htmlunit.corejs.javascript.ast.AstNode
addChild, assertNotNull, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getInlineComment, getLength, getLineno, getParent, getPosition, hasSideEffects, makeIndent, operatorToString, printList, setBounds, setInlineComment, setLength, setParent, setPosition, setRelative, shortName, toSource
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Methods inherited from class org.htmlunit.corejs.javascript.Node
addChildAfter, addChildBefore, addChildrenToBack, addChildrenToFront, addChildToBack, addChildToFront, getBigInt, getChildBefore, getDouble, getExistingIntProp, getFirstChild, getIntProp, getJsDoc, getJsDocNode, getLastChild, getLastSibling, getNext, getProp, getScope, getString, getType, hasChildren, hasConsistentReturnUsage, iterator, labelId, labelId, newNumber, newString, newString, newTarget, putIntProp, putProp, removeChild, removeChildren, removeProp, replaceChild, replaceChildAfter, resetTargets, setBigInt, setDouble, setJsDocNode, setLineno, setScope, setString, setType, toString, toStringTree
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Field Detail
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operand
private AstNode operand
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Constructor Detail
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UnaryExpression
public UnaryExpression()
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UnaryExpression
public UnaryExpression(int pos)
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UnaryExpression
public UnaryExpression(int pos, int len)
Constructs a new UnaryExpression
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UnaryExpression
public UnaryExpression(int operator, int operatorPosition, AstNode operand)
Constructs a new UnaryExpression with the specified operator and operand. It sets the parent of the operand, and sets its own bounds to encompass the operator and operand.- Parameters:
operator
- the node typeoperatorPosition
- the absolute position of the operator.operand
- the operand expression- Throws:
java.lang.IllegalArgumentException
- } ifoperand
isnull
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Method Detail
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getOperator
public int getOperator()
Returns operator token – alias forNode.getType()
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setOperator
public void setOperator(int operator)
Sets operator – same asNode.setType(int)
, but throws an exception if the operator is invalid- Throws:
java.lang.IllegalArgumentException
- if operator is not a valid Token code
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getOperand
public AstNode getOperand()
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setOperand
public void setOperand(AstNode operand)
Sets the operand, and sets its parent to be this node.- Throws:
java.lang.IllegalArgumentException
- } ifoperand
isnull
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toSource
public java.lang.String toSource(int depth)
Description copied from class:AstNode
Emits source code for this node. Callee is responsible for calling this function recursively on children, incrementing indent as appropriate.Note: if the parser was in error-recovery mode, some AST nodes may have
null
children that are expected to be non-null
when no errors are present. In this situation, the behavior of thetoSource
method is undefined:toSource
implementations may assume that the AST node is error-free, since it is intended to be invoked only at runtime after a successful parse.
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visit
public void visit(NodeVisitor v)
Visits this node, then the operand.
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