Class Node
- java.lang.Object
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- org.mozilla.javascript.Node
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Nested Class Summary
Nested Classes Modifier and Type Class Description classNode.NodeIteratorIterates over the children of this Node.
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Field Summary
Fields Modifier and Type Field Description static intARROW_FUNCTION_PROPstatic intATTRIBUTE_FLAGstatic intBOTHstatic intCASEARRAY_PROPstatic intCATCH_SCOPE_PROPstatic intCONTROL_BLOCK_PROPstatic intDECR_FLAGstatic intDESCENDANTS_FLAGstatic intDESTRUCTURING_ARRAY_LENGTHstatic intDESTRUCTURING_NAMESstatic intDESTRUCTURING_PARAMSstatic intDIRECTCALL_PROPstatic intEND_DROPS_OFFstatic intEND_RETURNSstatic intEND_RETURNS_VALUEstatic intEND_UNREACHEDThese flags enumerate the possible ways a statement/function can terminate.static intEND_YIELDSstatic intEXPRESSION_CLOSURE_PROPprotected Nodefirststatic intFUNCTION_PROPstatic intGENERATOR_END_PROPstatic intINCRDECR_PROPstatic intISNUMBER_PROPstatic intJSDOC_PROPstatic intLABEL_ID_PROPprotected Nodelaststatic intLAST_PROPstatic intLEFTprotected intlinenostatic intLOCAL_BLOCK_PROPstatic intLOCAL_PROPstatic intMEMBER_TYPE_PROPstatic intNAME_PROPprotected Nodenextstatic intNON_SPECIALCALLstatic intOBJECT_IDS_PROPstatic intPARENTHESIZED_PROPstatic intPOST_FLAGstatic intPROPERTY_FLAGprotected org.mozilla.javascript.Node.PropListItempropListHeadLinked list of properties.static intREGEXP_PROPstatic intRIGHTstatic intSHORTHAND_PROPERTY_NAMEstatic intSKIP_INDEXES_PROPstatic intSPECIALCALL_EVALstatic intSPECIALCALL_PROPstatic intSPECIALCALL_WITHstatic intTARGETBLOCK_PROPstatic intTEMPLATE_LITERAL_PROPstatic intTRAILING_COMMAprotected inttypestatic intVARIABLE_PROP
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Constructor Summary
Constructors Constructor Description Node(int nodeType)Node(int nodeType, int line)Node(int nodeType, Node child)Node(int nodeType, Node child, int line)Node(int nodeType, Node left, Node right)Node(int nodeType, Node left, Node right, int line)Node(int nodeType, Node left, Node mid, Node right)Node(int nodeType, Node left, Node mid, Node right, int line)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddChildAfter(Node newChild, Node node)Add 'child' after 'node'.voidaddChildBefore(Node newChild, Node node)Add 'child' before 'node'.voidaddChildrenToBack(Node children)voidaddChildrenToFront(Node children)voidaddChildToBack(Node child)voidaddChildToFront(Node child)java.math.BigIntegergetBigInt()Can only be called whengetType() == Token.BIGINTNodegetChildBefore(Node child)doublegetDouble()Can only be called whengetType() == Token.NUMBERintgetExistingIntProp(int propType)NodegetFirstChild()intgetIntProp(int propType, int defaultValue)java.lang.StringgetJsDoc()Gets the JsDoc comment string attached to this node.CommentgetJsDocNode()Gets the JsDoc Comment object attached to this node.NodegetLastChild()NodegetLastSibling()intgetLineno()Return the line number recorded for this node.NodegetNext()java.lang.ObjectgetProp(int propType)ScopegetScope()Can only be called when node has String context.java.lang.StringgetString()Can only be called when node has String context.intgetType()booleanhasChildren()booleanhasConsistentReturnUsage()Checks that every return usage in a function body is consistent with the requirements of strict-mode.booleanhasSideEffects()java.util.Iterator<Node>iterator()Returns anIteratorover the node's children.intlabelId()voidlabelId(int labelId)static NodenewNumber(double number)static NodenewString(int type, java.lang.String str)static NodenewString(java.lang.String str)static NodenewTarget()voidputIntProp(int propType, int prop)voidputProp(int propType, java.lang.Object prop)voidremoveChild(Node child)voidremoveChildren()voidremoveProp(int propType)voidreplaceChild(Node child, Node newChild)voidreplaceChildAfter(Node prevChild, Node newChild)voidresetTargets()Recursively unlabel every TARGET or YIELD node in the tree.voidsetBigInt(java.math.BigInteger bigInt)voidsetDouble(double number)voidsetJsDocNode(Comment jsdocNode)Sets the JsDoc comment string attached to this node.voidsetLineno(int lineno)voidsetScope(Scope s)Can only be called when node has String context.voidsetString(java.lang.String s)Can only be called when node has String context.NodesetType(int type)Sets the node type and returns this node.java.lang.StringtoString()java.lang.StringtoStringTree(ScriptNode treeTop)
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Field Detail
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FUNCTION_PROP
public static final int FUNCTION_PROP
- See Also:
- Constant Field Values
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LOCAL_PROP
public static final int LOCAL_PROP
- See Also:
- Constant Field Values
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LOCAL_BLOCK_PROP
public static final int LOCAL_BLOCK_PROP
- See Also:
- Constant Field Values
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REGEXP_PROP
public static final int REGEXP_PROP
- See Also:
- Constant Field Values
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CASEARRAY_PROP
public static final int CASEARRAY_PROP
- See Also:
- Constant Field Values
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TARGETBLOCK_PROP
public static final int TARGETBLOCK_PROP
- See Also:
- Constant Field Values
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VARIABLE_PROP
public static final int VARIABLE_PROP
- See Also:
- Constant Field Values
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ISNUMBER_PROP
public static final int ISNUMBER_PROP
- See Also:
- Constant Field Values
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DIRECTCALL_PROP
public static final int DIRECTCALL_PROP
- See Also:
- Constant Field Values
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SPECIALCALL_PROP
public static final int SPECIALCALL_PROP
- See Also:
- Constant Field Values
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SKIP_INDEXES_PROP
public static final int SKIP_INDEXES_PROP
- See Also:
- Constant Field Values
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OBJECT_IDS_PROP
public static final int OBJECT_IDS_PROP
- See Also:
- Constant Field Values
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INCRDECR_PROP
public static final int INCRDECR_PROP
- See Also:
- Constant Field Values
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CATCH_SCOPE_PROP
public static final int CATCH_SCOPE_PROP
- See Also:
- Constant Field Values
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LABEL_ID_PROP
public static final int LABEL_ID_PROP
- See Also:
- Constant Field Values
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MEMBER_TYPE_PROP
public static final int MEMBER_TYPE_PROP
- See Also:
- Constant Field Values
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NAME_PROP
public static final int NAME_PROP
- See Also:
- Constant Field Values
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CONTROL_BLOCK_PROP
public static final int CONTROL_BLOCK_PROP
- See Also:
- Constant Field Values
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PARENTHESIZED_PROP
public static final int PARENTHESIZED_PROP
- See Also:
- Constant Field Values
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GENERATOR_END_PROP
public static final int GENERATOR_END_PROP
- See Also:
- Constant Field Values
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DESTRUCTURING_ARRAY_LENGTH
public static final int DESTRUCTURING_ARRAY_LENGTH
- See Also:
- Constant Field Values
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DESTRUCTURING_NAMES
public static final int DESTRUCTURING_NAMES
- See Also:
- Constant Field Values
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DESTRUCTURING_PARAMS
public static final int DESTRUCTURING_PARAMS
- See Also:
- Constant Field Values
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JSDOC_PROP
public static final int JSDOC_PROP
- See Also:
- Constant Field Values
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EXPRESSION_CLOSURE_PROP
public static final int EXPRESSION_CLOSURE_PROP
- See Also:
- Constant Field Values
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SHORTHAND_PROPERTY_NAME
public static final int SHORTHAND_PROPERTY_NAME
- See Also:
- Constant Field Values
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ARROW_FUNCTION_PROP
public static final int ARROW_FUNCTION_PROP
- See Also:
- Constant Field Values
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TEMPLATE_LITERAL_PROP
public static final int TEMPLATE_LITERAL_PROP
- See Also:
- Constant Field Values
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TRAILING_COMMA
public static final int TRAILING_COMMA
- See Also:
- Constant Field Values
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LAST_PROP
public static final int LAST_PROP
- See Also:
- Constant Field Values
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BOTH
public static final int BOTH
- See Also:
- Constant Field Values
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LEFT
public static final int LEFT
- See Also:
- Constant Field Values
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RIGHT
public static final int RIGHT
- See Also:
- Constant Field Values
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NON_SPECIALCALL
public static final int NON_SPECIALCALL
- See Also:
- Constant Field Values
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SPECIALCALL_EVAL
public static final int SPECIALCALL_EVAL
- See Also:
- Constant Field Values
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SPECIALCALL_WITH
public static final int SPECIALCALL_WITH
- See Also:
- Constant Field Values
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DECR_FLAG
public static final int DECR_FLAG
- See Also:
- Constant Field Values
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POST_FLAG
public static final int POST_FLAG
- See Also:
- Constant Field Values
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PROPERTY_FLAG
public static final int PROPERTY_FLAG
- See Also:
- Constant Field Values
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ATTRIBUTE_FLAG
public static final int ATTRIBUTE_FLAG
- See Also:
- Constant Field Values
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DESCENDANTS_FLAG
public static final int DESCENDANTS_FLAG
- See Also:
- Constant Field Values
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END_UNREACHED
public static final int END_UNREACHED
These flags enumerate the possible ways a statement/function can terminate. These flags are used by endCheck() and by the Parser to detect inconsistent return usage.END_UNREACHED is reserved for code paths that are assumed to always be able to execute (example: throw, continue)
END_DROPS_OFF indicates if the statement can transfer control to the next one. Statement such as return dont. A compound statement may have some branch that drops off control to the next statement.
END_RETURNS indicates that the statement can return (without arguments) END_RETURNS_VALUE indicates that the statement can return a value.
A compound statement such as if (condition) { return value; } Will be detected as (END_DROPS_OFF | END_RETURN_VALUE) by endCheck()
- See Also:
- Constant Field Values
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END_DROPS_OFF
public static final int END_DROPS_OFF
- See Also:
- Constant Field Values
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END_RETURNS
public static final int END_RETURNS
- See Also:
- Constant Field Values
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END_RETURNS_VALUE
public static final int END_RETURNS_VALUE
- See Also:
- Constant Field Values
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END_YIELDS
public static final int END_YIELDS
- See Also:
- Constant Field Values
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type
protected int type
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next
protected Node next
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first
protected Node first
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last
protected Node last
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lineno
protected int lineno
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propListHead
protected org.mozilla.javascript.Node.PropListItem propListHead
Linked list of properties. Since vast majority of nodes would have no more then 2 properties, linked list saves memory and provides fast lookup. If this does not holds, propListHead can be replaced by UintMap.
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Method Detail
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newNumber
public static Node newNumber(double number)
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newString
public static Node newString(java.lang.String str)
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newString
public static Node newString(int type, java.lang.String str)
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getType
public int getType()
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setType
public Node setType(int type)
Sets the node type and returns this node.
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getJsDoc
public java.lang.String getJsDoc()
Gets the JsDoc comment string attached to this node.- Returns:
- the comment string or
nullif no JsDoc is attached to this node
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getJsDocNode
public Comment getJsDocNode()
Gets the JsDoc Comment object attached to this node.- Returns:
- the Comment or
nullif no JsDoc is attached to this node
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setJsDocNode
public void setJsDocNode(Comment jsdocNode)
Sets the JsDoc comment string attached to this node.
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hasChildren
public boolean hasChildren()
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getFirstChild
public Node getFirstChild()
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getLastChild
public Node getLastChild()
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getNext
public Node getNext()
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getLastSibling
public Node getLastSibling()
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addChildToFront
public void addChildToFront(Node child)
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addChildToBack
public void addChildToBack(Node child)
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addChildrenToFront
public void addChildrenToFront(Node children)
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addChildrenToBack
public void addChildrenToBack(Node children)
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removeChild
public void removeChild(Node child)
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removeChildren
public void removeChildren()
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iterator
public java.util.Iterator<Node> iterator()
Returns anIteratorover the node's children.- Specified by:
iteratorin interfacejava.lang.Iterable<Node>
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removeProp
public void removeProp(int propType)
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getProp
public java.lang.Object getProp(int propType)
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getIntProp
public int getIntProp(int propType, int defaultValue)
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getExistingIntProp
public int getExistingIntProp(int propType)
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putProp
public void putProp(int propType, java.lang.Object prop)
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putIntProp
public void putIntProp(int propType, int prop)
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getLineno
public int getLineno()
Return the line number recorded for this node.- Returns:
- the line number
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setLineno
public void setLineno(int lineno)
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getDouble
public final double getDouble()
Can only be called whengetType() == Token.NUMBER
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setDouble
public final void setDouble(double number)
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getBigInt
public java.math.BigInteger getBigInt()
Can only be called whengetType() == Token.BIGINT
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setBigInt
public void setBigInt(java.math.BigInteger bigInt)
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getString
public final java.lang.String getString()
Can only be called when node has String context.
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setString
public final void setString(java.lang.String s)
Can only be called when node has String context.
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getScope
public Scope getScope()
Can only be called when node has String context.
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setScope
public void setScope(Scope s)
Can only be called when node has String context.
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newTarget
public static Node newTarget()
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labelId
public final int labelId()
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labelId
public void labelId(int labelId)
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hasConsistentReturnUsage
public boolean hasConsistentReturnUsage()
Checks that every return usage in a function body is consistent with the requirements of strict-mode.- Returns:
- true if the function satisfies strict mode requirement.
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hasSideEffects
public boolean hasSideEffects()
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resetTargets
public void resetTargets()
Recursively unlabel every TARGET or YIELD node in the tree.This is used and should only be used for inlining finally blocks where jsr instructions used to be. It is somewhat hackish, but implementing a clone() operation would take much, much more effort.
This solution works for inlining finally blocks because you should never be writing any given block to the class file simultaneously. Therefore, an unlabeling will never occur in the middle of a block.
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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toStringTree
public java.lang.String toStringTree(ScriptNode treeTop)
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