com.google.template.soy.soytree

Class ForNonemptyNode

java.lang.Object

com.google.template.soy.basetree.AbstractNode

com.google.template.soy.soytree.AbstractSoyNode

com.google.template.soy.soytree.AbstractParentSoyNode<SoyNode.StandaloneNode>

com.google.template.soy.soytree.ForNonemptyNode

All Implemented Interfaces:

Node, ParentNode<SoyNode.StandaloneNode>, SoyNode, SoyNode.BlockNode, SoyNode.ConditionalBlockNode, SoyNode.LocalVarBlockNode, SoyNode.LocalVarNode, SoyNode.ParentSoyNode<SoyNode.StandaloneNode>

public final class ForNonemptyNode
extends AbstractParentSoyNode<SoyNode.StandaloneNode>
implements SoyNode.ConditionalBlockNode, SoyNode.LocalVarBlockNode

Node representing the loop portion of a 'foreach' statement.

Important: Do not use outside of Soy code (treat as superpackage-private).

Constructor Summary

Constructors

Constructor and Description
ForNonemptyNode(int id, SourceLocation location, String varName)

Method Summary

Modifier and Type	Method and Description
ForNonemptyNode	copy(CopyState copyState) Copies this node.
ExprRootNode	getExpr() Returns the expression we're iterating over.
int	getForNodeId()
SoyNode.Kind	getKind() Returns this node's kind (corresponding to this node's specific type).
ForNode	getParent() Gets this node's parent.
LoopVar	getVar() Returns the variable definition.
String	getVarName() Returns the name of this node's local variable (without the preceding '$').
String	toSourceString() Builds a Soy source string that could be the source for this node.

Methods inherited from class com.google.template.soy.soytree.AbstractParentSoyNode

addChild, addChild, addChildren, addChildren, appendSourceStringForChildren, clearChildren, getChild, getChildIndex, getChildren, numChildren, removeChild, removeChild, replaceChild, replaceChild

Methods inherited from class com.google.template.soy.soytree.AbstractSoyNode

getId, getSourceLocation, setId, toString

Methods inherited from class com.google.template.soy.basetree.AbstractNode

couldHaveSyntaxVersionAtLeast, equals, getNearestAncestor, getSyntaxVersionUpperBound, hasAncestor, hashCode, maybeSetSyntaxVersionUpperBound, setParent

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.template.soy.basetree.ParentNode

addChild, addChild, addChildren, addChildren, appendSourceStringForChildren, clearChildren, getChild, getChildIndex, getChildren, numChildren, removeChild, removeChild, replaceChild, replaceChild

Methods inherited from interface com.google.template.soy.basetree.Node

couldHaveSyntaxVersionAtLeast, getNearestAncestor, getSourceLocation, getSyntaxVersionUpperBound, hasAncestor, maybeSetSyntaxVersionUpperBound, setParent

Constructor Detail

ForNonemptyNode

public ForNonemptyNode(int id,
                       SourceLocation location,
                       String varName)

Parameters:

id - The id for this node.

location - The node's source location.

varName - The variable name of the loop index variable.

Method Detail

getKind

public SoyNode.Kind getKind()

Description copied from interface: SoyNode

Returns this node's kind (corresponding to this node's specific type).

Specified by:

getKind in interface SoyNode

getForNodeId

public int getForNodeId()

getVar

public final LoopVar getVar()

Description copied from interface: SoyNode.LocalVarNode

Returns the variable definition.

Specified by:

getVar in interface SoyNode.LocalVarNode

getVarName

public final String getVarName()

Description copied from interface: SoyNode.LocalVarNode

Returns the name of this node's local variable (without the preceding '$').

Specified by:

getVarName in interface SoyNode.LocalVarNode

getExpr

public ExprRootNode getExpr()

Returns the expression we're iterating over.

toSourceString

public String toSourceString()

Description copied from interface: Node

Builds a Soy source string that could be the source for this node. Note that this is not the actual original source string, but a (SORT OF, NOT QUITE) canonical equivalent.

Note: Some nodes do not have a direct mapping to Soy source (such as nodes created during some optimization passes). Thus this method may not always be supported.

Specified by:

toSourceString in interface Node

Returns:

A Soy string that could be the source for this node.

getParent

public ForNode getParent()

Description copied from interface: Node

Gets this node's parent.

Specified by:

getParent in interface Node

Specified by:

getParent in interface SoyNode

Overrides:

getParent in class AbstractSoyNode

Returns:

This node's parent.

copy

public ForNonemptyNode copy(CopyState copyState)

Description copied from interface: SoyNode

Copies this node. The copy's parent pointer is set to null.

All copy() overrides should follow this contract:

• only leaf classes (in the class hierarchy) should have non-abstract clone methods
• all leaf classes should be final
• all leaf copy constructors should be private
• all clone methods should look exactly like:

  
   {@literal @}Override public T copy(CopyState copyState) {
     return new T(this, copyState);
   }
   

• all non-leaf copy constructors should be protected

TODO(lukes): The usecases for a copy method are few and far between. Making the AST nodes immutable (or at least unmodifiable) would be preferable to maintaining our copy() methods.

Don't clone nodes unless you know what you're doing. The Soy AST is not actually a tree (it contains back edges from variables to their definitions), and naively copying nodes can result in pointers into stale ASTs

The copied nodes will have the same ids as the original nodes. If you need to copy a subtree with new ids assigned to the copied nodes, use SoyTreeUtils.cloneWithNewIds(T, com.google.template.soy.base.internal.IdGenerator).

Specified by:

copy in interface Node

Specified by:

copy in interface SoyNode

Returns:

A clone of this code.