Package org.mozilla.javascript.ast
Class ExpressionStatement
- java.lang.Object
-
- org.mozilla.javascript.Node
-
- org.mozilla.javascript.ast.AstNode
-
- org.mozilla.javascript.ast.ExpressionStatement
-
public class ExpressionStatement extends AstNode
AST node representing an expression in a statement context. The node type isToken.EXPR_VOIDif inside a function, or elseToken.EXPR_RESULTif inside a script.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class org.mozilla.javascript.ast.AstNode
AstNode.DebugPrintVisitor, AstNode.PositionComparator
-
Nested classes/interfaces inherited from class org.mozilla.javascript.Node
Node.NodeIterator
-
-
Field Summary
-
Fields inherited from class org.mozilla.javascript.ast.AstNode
inlineComment, length, parent, position
-
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
-
-
Constructor Summary
Constructors Constructor Description ExpressionStatement()ExpressionStatement(int pos, int len)ExpressionStatement(int pos, int len, AstNode expr)Constructs a newExpressionStatementExpressionStatement(AstNode expr)Constructs a newExpressionStatementwrapping the specified expression.ExpressionStatement(AstNode expr, boolean hasResult)Constructs a newExpressionStatementwrapping the specified expression.
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AstNodegetExpression()Returns the wrapped expressionbooleanhasSideEffects()Returns true if this node has side effectsvoidsetExpression(AstNode expression)Sets the wrapped expression, and sets its parent to this node.voidsetHasResult()Called by the parser to set node type to EXPR_RESULT if this node is not within a Function.java.lang.StringtoSource(int depth)Emits source code for this node.voidvisit(NodeVisitor v)Visits this node, then the wrapped statement.-
Methods inherited from class org.mozilla.javascript.ast.AstNode
addChild, assertNotNull, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getInlineComment, getLength, getLineno, getParent, getPosition, makeIndent, operatorToString, printList, setBounds, setInlineComment, setLength, setParent, setPosition, setRelative, shortName, toSource
-
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
-
-
-
-
Constructor Detail
-
ExpressionStatement
public ExpressionStatement()
-
ExpressionStatement
public ExpressionStatement(AstNode expr, boolean hasResult)
Constructs a newExpressionStatementwrapping the specified expression. Sets this node's position to the position of the wrapped node, and sets the wrapped node's position to zero. Sets this node's length to the length of the wrapped node.- Parameters:
expr- the wrapped expressionhasResult-trueif this expression has side effects. If true, sets node type to EXPR_RESULT, else to EXPR_VOID.
-
ExpressionStatement
public ExpressionStatement(AstNode expr)
Constructs a newExpressionStatementwrapping the specified expression. Sets this node's position to the position of the wrapped node, and sets the wrapped node's position to zero. Sets this node's length to the length of the wrapped node.- Parameters:
expr- the wrapped expression
-
ExpressionStatement
public ExpressionStatement(int pos, int len)
-
ExpressionStatement
public ExpressionStatement(int pos, int len, AstNode expr)Constructs a newExpressionStatement- Parameters:
expr- the wrappedAstNode. TheExpressionStatement's bounds are set to those of expr, and expr's parent is set to this node.- Throws:
java.lang.IllegalArgumentException- ifexpris null
-
-
Method Detail
-
setHasResult
public void setHasResult()
Called by the parser to set node type to EXPR_RESULT if this node is not within a Function.
-
getExpression
public AstNode getExpression()
Returns the wrapped expression
-
setExpression
public void setExpression(AstNode expression)
Sets the wrapped expression, and sets its parent to this node.- Throws:
java.lang.IllegalArgumentException- } if expression isnull
-
hasSideEffects
public boolean hasSideEffects()
Returns true if this node has side effects- Overrides:
hasSideEffectsin classAstNode- Throws:
java.lang.IllegalStateException- if expression has not yet been set.
-
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.
-
visit
public void visit(NodeVisitor v)
Visits this node, then the wrapped statement.
-
-