Package org.mozilla.javascript.ast
Class UpdateExpression
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- org.mozilla.javascript.Node
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- org.mozilla.javascript.ast.AstNode
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- org.mozilla.javascript.ast.UpdateExpression
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public class UpdateExpression extends AstNode
AST node representing update operators such as++. 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 (for prefix operators) or from the start of the operand to the operator (for postfix).
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Nested Class Summary
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Nested classes/interfaces inherited from class org.mozilla.javascript.ast.AstNode
AstNode.DebugPrintVisitor, AstNode.PositionComparator
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Nested classes/interfaces inherited from class org.mozilla.javascript.Node
Node.NodeIterator
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Field Summary
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Fields inherited from class org.mozilla.javascript.ast.AstNode
inlineComment, length, parent, position
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Fields inherited from class org.mozilla.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 UpdateExpression()UpdateExpression(int pos)UpdateExpression(int pos, int len)Constructs a new postfix UpdateExpression.UpdateExpression(int operator, int operatorPosition, AstNode operand)Constructs a new prefix UpdateExpression.UpdateExpression(int operator, int operatorPosition, AstNode operand, boolean postFix)Constructs a new UpdateExpression with the specified operator and operand.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AstNodegetOperand()intgetOperator()Returns operator token – alias forNode.getType()booleanisPostfix()Returns whether the operator is postfixbooleanisPrefix()Returns whether the operator is prefixvoidsetIsPostfix(boolean isPostfix)Sets whether the operator is postfixvoidsetOperand(AstNode operand)Sets the operand, and sets its parent to be this node.voidsetOperator(int operator)Sets operator – same asNode.setType(int), but throws an exception if the operator is invalidjava.lang.StringtoSource(int depth)Emits source code for this node.voidvisit(NodeVisitor v)Visits this node, then the operand.-
Methods inherited from class org.mozilla.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.mozilla.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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Constructor Detail
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UpdateExpression
public UpdateExpression()
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UpdateExpression
public UpdateExpression(int pos)
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UpdateExpression
public UpdateExpression(int pos, int len)Constructs a new postfix UpdateExpression.
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UpdateExpression
public UpdateExpression(int operator, int operatorPosition, AstNode operand)Constructs a new prefix UpdateExpression.
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UpdateExpression
public UpdateExpression(int operator, int operatorPosition, AstNode operand, boolean postFix)Constructs a new UpdateExpression 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 expressionpostFix- true if the operator follows the operand. Int- Throws:
java.lang.IllegalArgumentException- } ifoperandisnull
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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- } ifoperandisnull
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isPostfix
public boolean isPostfix()
Returns whether the operator is postfix
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isPrefix
public boolean isPrefix()
Returns whether the operator is prefix
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setIsPostfix
public void setIsPostfix(boolean isPostfix)
Sets whether the operator is postfix
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toSource
public java.lang.String toSource(int depth)
Description copied from class:AstNodeEmits 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
nullchildren that are expected to be non-nullwhen no errors are present. In this situation, the behavior of thetoSourcemethod is undefined:toSourceimplementations 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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