Class JSONWriter

java.lang.Object

com.oracle.js.parser.ir.visitor.NodeVisitor<LexicalContext>

com.oracle.truffle.js.parser.internal.ir.debug.JSONWriter

public final class JSONWriter
extends NodeVisitor<LexicalContext>

This IR writer produces a JSON string that represents AST as a JSON string.

Field Summary

Fields inherited from class NodeVisitor

lc

Method Summary

Modifier and Type	Method	Description
boolean	enterAccessNode(AccessNode accessNode)	Callback for entering an AccessNode
boolean	enterBinaryNode(BinaryNode binaryNode)	Callback for entering a BinaryNode
boolean	enterBlock(Block block)	Callback for entering a Block
boolean	enterBlockStatement(BlockStatement blockStatement)	Callback for entering a BlockStatement
boolean	enterBreakNode(BreakNode breakNode)	Callback for entering a BreakNode
boolean	enterCallNode(CallNode callNode)	Callback for entering a CallNode
boolean	enterCaseNode(CaseNode caseNode)	Callback for entering a CaseNode
boolean	enterCatchNode(CatchNode catchNode)	Callback for entering a CatchNode
boolean	enterClassNode(ClassNode classNode)	Callback for entering a ClassNode
boolean	enterContinueNode(ContinueNode continueNode)	Callback for entering a ContinueNode
boolean	enterDebuggerNode(DebuggerNode debuggerNode)	Callback for entering a DebuggerNode
protected boolean	enterDefault(Node node)	Override this method to do a double inheritance pattern, e.g.
boolean	enterEmptyNode(EmptyNode emptyNode)	Callback for entering an EmptyNode
boolean	enterExpressionStatement(ExpressionStatement expressionStatement)	Callback for entering an ExpressionStatement
boolean	enterForNode(ForNode forNode)	Callback for entering a ForNode
boolean	enterFunctionNode(FunctionNode functionNode)	Callback for entering a FunctionNode
boolean	enterIdentNode(IdentNode identNode)	Callback for entering an IdentNode
boolean	enterIfNode(IfNode ifNode)	Callback for entering an IfNode
boolean	enterIndexNode(IndexNode indexNode)	Callback for entering an IndexNode
boolean	enterJoinPredecessorExpression(JoinPredecessorExpression joinPredecessorExpression)	Callback for entering a JoinPredecessorExpression.
boolean	enterLabelNode(LabelNode labelNode)	Callback for entering a LabelNode
boolean	enterLiteralNode(LiteralNode literalNode)	Callback for entering a LiteralNode
boolean	enterObjectNode(ObjectNode objectNode)	Callback for entering an ObjectNode
boolean	enterPropertyNode(PropertyNode propertyNode)	Callback for entering a PropertyNode
boolean	enterReturnNode(ReturnNode returnNode)	Callback for entering a ReturnNode
boolean	enterSwitchNode(SwitchNode switchNode)	Callback for entering a SwitchNode
boolean	enterTemplateLiteralNode(TemplateLiteralNode templateLiteralNode)	Callback for entering a TemplateLiteralNode
boolean	enterTernaryNode(TernaryNode ternaryNode)	Callback for entering a TernaryNode
boolean	enterThrowNode(ThrowNode throwNode)	Callback for entering a ThrowNode
boolean	enterTryNode(TryNode tryNode)	Callback for entering a TryNode
boolean	enterUnaryNode(UnaryNode unaryNode)	Callback for entering a UnaryNode
boolean	enterVarNode(VarNode varNode)	Callback for entering a VarNode
boolean	enterWhileNode(WhileNode whileNode)	Callback for entering a WhileNode
boolean	enterWithNode(WithNode withNode)	Callback for entering a WithNode
protected Node	leaveDefault(Node node)	Override this method to do a double inheritance pattern, e.g.
static String	parse(ScriptEnvironment env, String code, String name, boolean includeLoc)	Returns AST as JSON compatible string.

Methods inherited from class NodeVisitor

enterBlockExpression, enterClassElement, enterErrorNode, enterExportNode, enterExportSpecifierNode, enterImportClauseNode, enterImportNode, enterImportSpecifierNode, enterNamedExportsNode, enterNamedImportsNode, enterNameSpaceImportNode, enterParameterNode, getLexicalContext, leaveAccessNode, leaveBinaryNode, leaveBlock, leaveBlockExpression, leaveBlockStatement, leaveBreakNode, leaveCallNode, leaveCaseNode, leaveCatchNode, leaveClassElement, leaveClassNode, leaveContinueNode, leaveDebuggerNode, leaveEmptyNode, leaveErrorNode, leaveExportNode, leaveExportSpecifierNode, leaveExpressionStatement, leaveForNode, leaveFunctionNode, leaveIdentNode, leaveIfNode, leaveImportClauseNode, leaveImportNode, leaveImportSpecifierNode, leaveIndexNode, leaveJoinPredecessorExpression, leaveLabelNode, leaveLiteralNode, leaveNamedExportsNode, leaveNamedImportsNode, leaveNameSpaceImportNode, leaveObjectNode, leaveParameterNode, leavePropertyNode, leaveReturnNode, leaveSwitchNode, leaveTemplateLiteralNode, leaveTernaryNode, leaveThrowNode, leaveTryNode, leaveUnaryNode, leaveVarNode, leaveWhileNode, leaveWithNode

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

parse

public static String parse(ScriptEnvironment env,
 String code,
 String name,
 boolean includeLoc)

Returns AST as JSON compatible string.

Parameters:

env - environment

code - code to be parsed

name - name of the code source (used for location)

includeLoc - tells whether to include location information for nodes or not

Returns:

JSON string representation of AST of the supplied code

enterJoinPredecessorExpression

public boolean enterJoinPredecessorExpression(JoinPredecessorExpression joinPredecessorExpression)

Description copied from class: NodeVisitor

Callback for entering a JoinPredecessorExpression.

Overrides:

enterJoinPredecessorExpression in class NodeVisitor<LexicalContext>

Parameters:

joinPredecessorExpression - the join predecessor expression

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterDefault

protected boolean enterDefault(Node node)

Description copied from class: NodeVisitor

Override this method to do a double inheritance pattern, e.g. avoid using

if (x instanceof NodeTypeA) {
   ...
} else if (x instanceof NodeTypeB) {
   ...
} else {
   ...
}

Use a NodeVisitor instead, and this method contents forms the else case.

Overrides:

enterDefault in class NodeVisitor<LexicalContext>

Parameters:

node - the node to visit

Returns:

true if traversal should continue and node children be traversed, false otherwise

See Also:

• NodeVisitor.leaveDefault(Node)

leaveDefault

protected Node leaveDefault(Node node)

Description copied from class: NodeVisitor

Override this method to do a double inheritance pattern, e.g. avoid using

if (x instanceof NodeTypeA) {
   ...
} else if (x instanceof NodeTypeB) {
   ...
} else {
   ...
}

Use a NodeVisitor instead, and this method contents forms the else case.

Overrides:

leaveDefault in class NodeVisitor<LexicalContext>

Parameters:

node - the node to visit

Returns:

the node

See Also:

• NodeVisitor.enterDefault(Node)

enterAccessNode

public boolean enterAccessNode(AccessNode accessNode)

Description copied from class: NodeVisitor

Callback for entering an AccessNode

Overrides:

enterAccessNode in class NodeVisitor<LexicalContext>

Parameters:

accessNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterBlock

public boolean enterBlock(Block block)

Description copied from class: NodeVisitor

Callback for entering a Block

Overrides:

enterBlock in class NodeVisitor<LexicalContext>

Parameters:

block - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterBinaryNode

public boolean enterBinaryNode(BinaryNode binaryNode)

Description copied from class: NodeVisitor

Callback for entering a BinaryNode

Overrides:

enterBinaryNode in class NodeVisitor<LexicalContext>

Parameters:

binaryNode - the node

Returns:

processed node

enterBreakNode

public boolean enterBreakNode(BreakNode breakNode)

Description copied from class: NodeVisitor

Callback for entering a BreakNode

Overrides:

enterBreakNode in class NodeVisitor<LexicalContext>

Parameters:

breakNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterCallNode

public boolean enterCallNode(CallNode callNode)

Description copied from class: NodeVisitor

Callback for entering a CallNode

Overrides:

enterCallNode in class NodeVisitor<LexicalContext>

Parameters:

callNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterCaseNode

public boolean enterCaseNode(CaseNode caseNode)

Description copied from class: NodeVisitor

Callback for entering a CaseNode

Overrides:

enterCaseNode in class NodeVisitor<LexicalContext>

Parameters:

caseNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterCatchNode

public boolean enterCatchNode(CatchNode catchNode)

Description copied from class: NodeVisitor

Callback for entering a CatchNode

Overrides:

enterCatchNode in class NodeVisitor<LexicalContext>

Parameters:

catchNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterContinueNode

public boolean enterContinueNode(ContinueNode continueNode)

Description copied from class: NodeVisitor

Callback for entering a ContinueNode

Overrides:

enterContinueNode in class NodeVisitor<LexicalContext>

Parameters:

continueNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterDebuggerNode

public boolean enterDebuggerNode(DebuggerNode debuggerNode)

Description copied from class: NodeVisitor

Callback for entering a DebuggerNode

Overrides:

enterDebuggerNode in class NodeVisitor<LexicalContext>

Parameters:

debuggerNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterEmptyNode

public boolean enterEmptyNode(EmptyNode emptyNode)

Description copied from class: NodeVisitor

Callback for entering an EmptyNode

Overrides:

enterEmptyNode in class NodeVisitor<LexicalContext>

Parameters:

emptyNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterExpressionStatement

public boolean enterExpressionStatement(ExpressionStatement expressionStatement)

Description copied from class: NodeVisitor

Callback for entering an ExpressionStatement

Overrides:

enterExpressionStatement in class NodeVisitor<LexicalContext>

Parameters:

expressionStatement - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterBlockStatement

public boolean enterBlockStatement(BlockStatement blockStatement)

Description copied from class: NodeVisitor

Callback for entering a BlockStatement

Overrides:

enterBlockStatement in class NodeVisitor<LexicalContext>

Parameters:

blockStatement - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterForNode

public boolean enterForNode(ForNode forNode)

Description copied from class: NodeVisitor

Callback for entering a ForNode

Overrides:

enterForNode in class NodeVisitor<LexicalContext>

Parameters:

forNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterFunctionNode

public boolean enterFunctionNode(FunctionNode functionNode)

Description copied from class: NodeVisitor

Callback for entering a FunctionNode

Overrides:

enterFunctionNode in class NodeVisitor<LexicalContext>

Parameters:

functionNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterClassNode

public boolean enterClassNode(ClassNode classNode)

Description copied from class: NodeVisitor

Callback for entering a ClassNode

Overrides:

enterClassNode in class NodeVisitor<LexicalContext>

Parameters:

classNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterIdentNode

public boolean enterIdentNode(IdentNode identNode)

Description copied from class: NodeVisitor

Callback for entering an IdentNode

Overrides:

enterIdentNode in class NodeVisitor<LexicalContext>

Parameters:

identNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterIfNode

public boolean enterIfNode(IfNode ifNode)

Description copied from class: NodeVisitor

Callback for entering an IfNode

Overrides:

enterIfNode in class NodeVisitor<LexicalContext>

Parameters:

ifNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterIndexNode

public boolean enterIndexNode(IndexNode indexNode)

Description copied from class: NodeVisitor

Callback for entering an IndexNode

Overrides:

enterIndexNode in class NodeVisitor<LexicalContext>

Parameters:

indexNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterLabelNode

public boolean enterLabelNode(LabelNode labelNode)

Description copied from class: NodeVisitor

Callback for entering a LabelNode

Overrides:

enterLabelNode in class NodeVisitor<LexicalContext>

Parameters:

labelNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterLiteralNode

public boolean enterLiteralNode(LiteralNode literalNode)

Description copied from class: NodeVisitor

Callback for entering a LiteralNode

Overrides:

enterLiteralNode in class NodeVisitor<LexicalContext>

Parameters:

literalNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterObjectNode

public boolean enterObjectNode(ObjectNode objectNode)

Description copied from class: NodeVisitor

Callback for entering an ObjectNode

Overrides:

enterObjectNode in class NodeVisitor<LexicalContext>

Parameters:

objectNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterPropertyNode

public boolean enterPropertyNode(PropertyNode propertyNode)

Description copied from class: NodeVisitor

Callback for entering a PropertyNode

Overrides:

enterPropertyNode in class NodeVisitor<LexicalContext>

Parameters:

propertyNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterReturnNode

public boolean enterReturnNode(ReturnNode returnNode)

Description copied from class: NodeVisitor

Callback for entering a ReturnNode

Overrides:

enterReturnNode in class NodeVisitor<LexicalContext>

Parameters:

returnNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterSwitchNode

public boolean enterSwitchNode(SwitchNode switchNode)

Description copied from class: NodeVisitor

Callback for entering a SwitchNode

Overrides:

enterSwitchNode in class NodeVisitor<LexicalContext>

Parameters:

switchNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterTernaryNode

public boolean enterTernaryNode(TernaryNode ternaryNode)

Description copied from class: NodeVisitor

Callback for entering a TernaryNode

Overrides:

enterTernaryNode in class NodeVisitor<LexicalContext>

Parameters:

ternaryNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterThrowNode

public boolean enterThrowNode(ThrowNode throwNode)

Description copied from class: NodeVisitor

Callback for entering a ThrowNode

Overrides:

enterThrowNode in class NodeVisitor<LexicalContext>

Parameters:

throwNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterTryNode

public boolean enterTryNode(TryNode tryNode)

Description copied from class: NodeVisitor

Callback for entering a TryNode

Overrides:

enterTryNode in class NodeVisitor<LexicalContext>

Parameters:

tryNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterUnaryNode

public boolean enterUnaryNode(UnaryNode unaryNode)

Description copied from class: NodeVisitor

Callback for entering a UnaryNode

Overrides:

enterUnaryNode in class NodeVisitor<LexicalContext>

Parameters:

unaryNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterVarNode

public boolean enterVarNode(VarNode varNode)

Description copied from class: NodeVisitor

Callback for entering a VarNode

Overrides:

enterVarNode in class NodeVisitor<LexicalContext>

Parameters:

varNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterWhileNode

public boolean enterWhileNode(WhileNode whileNode)

Description copied from class: NodeVisitor

Callback for entering a WhileNode

Overrides:

enterWhileNode in class NodeVisitor<LexicalContext>

Parameters:

whileNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterWithNode

public boolean enterWithNode(WithNode withNode)

Description copied from class: NodeVisitor

Callback for entering a WithNode

Overrides:

enterWithNode in class NodeVisitor<LexicalContext>

Parameters:

withNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise

enterTemplateLiteralNode

public boolean enterTemplateLiteralNode(TemplateLiteralNode templateLiteralNode)

Description copied from class: NodeVisitor

Callback for entering a TemplateLiteralNode

Overrides:

enterTemplateLiteralNode in class NodeVisitor<LexicalContext>

Parameters:

templateLiteralNode - the node

Returns:

true if traversal should continue and node children be traversed, false otherwise