com.google.template.soy.soytree

Class PrintNode

java.lang.Object

com.google.template.soy.basetree.AbstractNode

com.google.template.soy.soytree.AbstractSoyNode

com.google.template.soy.soytree.PrintNode

All Implemented Interfaces:

Node, ParentNode<PrintDirectiveNode>, SoyNode, SoyNode.CommandNode, SoyNode.ExprHolderNode, SoyNode.MsgPlaceholderInitialNode, SoyNode.ParentSoyNode<PrintDirectiveNode>, SoyNode.SplitLevelTopNode<PrintDirectiveNode>, SoyNode.StandaloneNode, SoyNode.StatementNode

public final class PrintNode
extends AbstractSoyNode
implements SoyNode.StandaloneNode, SoyNode.SplitLevelTopNode<PrintDirectiveNode>, SoyNode.StatementNode, SoyNode.ExprHolderNode, SoyNode.MsgPlaceholderInitialNode

Node representing a 'print' statement.

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

Constructor Summary

Constructors

Constructor and Description
PrintNode(int id, SourceLocation location, boolean isImplicit, ExprNode expr, Iterable<CommandTagAttribute> attributes, ErrorReporter errorReporter)

Method Summary

Modifier and Type	Method and Description
void	addChild(int index, N child) Adds the given child at the given index (shifting existing children if necessary).
void	addChild(N child) Adds the given child.
void	addChildren(int index, List<? extends N> children) Adds the given children at the given index (shifting existing children if necessary).
void	addChildren(List<? extends N> children) Adds the given children.
void	appendSourceStringForChildren(StringBuilder sb) Appends the source strings for all the children to the given StringBuilder.
void	clearChildren() Clears the list of children.
PrintNode	copy(CopyState copyState) Copies this node.
String	genBasePhName() Generates the base placeholder name for this node.
Object	genSamenessKey() Generates the key object used in comparisons to determine whether two placeholder nodes should be represented by the same placeholder.
N	getChild(int index) Gets the child at the given index.
int	getChildIndex(Node child) Finds the index of the given child.
List<N>	getChildren() Gets the list of children.
String	getCommandName() Returns the Soy command name.
String	getCommandText() Returns the command text (may be the empty string).
ExprRootNode	getExpr() Returns the parsed expression.
com.google.common.collect.ImmutableList<ExprRootNode>	getExprList() Returns the list of expressions in this node.
HtmlContext	getHtmlContext() Gets the HTML source context (typically tag, attribute value, HTML PCDATA, or plain text) which this node emits in.
SoyNode.Kind	getKind() Returns this node's kind (corresponding to this node's specific type).
SoyNode.ParentSoyNode<SoyNode.StandaloneNode>	getParent() Gets this node's parent.
protected String	getTagString()
protected String	getTagString(boolean selfEnding)
String	getUserSuppliedPhExample() Gets the user-supplied placeholder example, or null if not supplied or not applicable.
String	getUserSuppliedPhName() Gets the user-supplied placeholder name, or null if not supplied or not applicable.
boolean	isImplicit() Returns whether the 'print' command name was implicit.
int	numChildren() Gets the number of children.
void	removeChild(int index) Removes the child at the given index.
void	removeChild(N child) Removes the given child.
void	replaceChild(int index, N newChild) Replaces the child at the given index with the given new child.
void	replaceChild(N currChild, N newChild) Replaces the given current child with the given new child.
void	setHtmlContext(HtmlContext value)
String	toSourceString() Builds a Soy source string that could be the source for this node.

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

Constructor Detail

PrintNode

public PrintNode(int id,
                 SourceLocation location,
                 boolean isImplicit,
                 ExprNode expr,
                 Iterable<CommandTagAttribute> attributes,
                 ErrorReporter errorReporter)

Method Detail

getHtmlContext

public HtmlContext getHtmlContext()

Gets the HTML source context (typically tag, attribute value, HTML PCDATA, or plain text) which this node emits in. This affects how the node is escaped (for traditional backends) or how it's passed to incremental DOM APIs.

setHtmlContext

public void setHtmlContext(HtmlContext value)

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

isImplicit

public boolean isImplicit()

Returns whether the 'print' command name was implicit.

getExpr

public ExprRootNode getExpr()

Returns the parsed expression.

getUserSuppliedPhName

@Nullable
public String getUserSuppliedPhName()

Description copied from interface: SoyNode.MsgPlaceholderInitialNode

Gets the user-supplied placeholder name, or null if not supplied or not applicable. Note that this raw name can be any identifier (not necessarily in upper-underscore format).

Specified by:

getUserSuppliedPhName in interface SoyNode.MsgPlaceholderInitialNode

Returns:

The user-supplied placeholder name, or null if not supplied or not applicable.

getUserSuppliedPhExample

@Nullable
public String getUserSuppliedPhExample()

Description copied from interface: SoyNode.MsgPlaceholderInitialNode

Gets the user-supplied placeholder example, or null if not supplied or not applicable.

Specified by:

getUserSuppliedPhExample in interface SoyNode.MsgPlaceholderInitialNode

Returns:

The user-supplied placeholder example, or null if not supplied or not applicable.

genBasePhName

public String genBasePhName()

Description copied from interface: SoyNode.MsgPlaceholderInitialNode

Generates the base placeholder name for this node.

Specified by:

genBasePhName in interface SoyNode.MsgPlaceholderInitialNode

Returns:

The base placeholder name for this node.

genSamenessKey

public Object genSamenessKey()

Description copied from interface: SoyNode.MsgPlaceholderInitialNode

Generates the key object used in comparisons to determine whether two placeholder nodes should be represented by the same placeholder.

Specified by:

genSamenessKey in interface SoyNode.MsgPlaceholderInitialNode

Returns:

The key object for determining whether this node and another node should be represented by the same placeholder.

getExprList

public com.google.common.collect.ImmutableList<ExprRootNode> getExprList()

Description copied from interface: SoyNode.ExprHolderNode

Returns the list of expressions in this node.

Specified by:

getExprList in interface SoyNode.ExprHolderNode

getCommandText

public String getCommandText()

Description copied from interface: SoyNode.CommandNode

Returns the command text (may be the empty string).

Specified by:

getCommandText in interface SoyNode.CommandNode

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 SoyNode.ParentSoyNode<SoyNode.StandaloneNode> getParent()

Description copied from interface: Node

Gets this node's parent.

Specified by:

getParent in interface Node

Specified by:

getParent in interface SoyNode

Specified by:

getParent in interface SoyNode.StandaloneNode

Overrides:

getParent in class AbstractSoyNode

Returns:

This node's parent.

copy

public PrintNode 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.

numChildren

public int numChildren()

Description copied from interface: ParentNode

Gets the number of children.

Specified by:

numChildren in interface ParentNode<N extends SoyNode>

Returns:

The number of children.

getChild

public N getChild(int index)

Description copied from interface: ParentNode

Gets the child at the given index.

Specified by:

getChild in interface ParentNode<N extends SoyNode>

Parameters:

index - The index of the child to get.

Returns:

The child at the given index.

getChildIndex

public int getChildIndex(Node child)

Description copied from interface: ParentNode

Finds the index of the given child.

Specified by:

getChildIndex in interface ParentNode<N extends SoyNode>

Parameters:

child - The child to find the index of.

Returns:

The index of the given child, or -1 if the given child is not a child of this node.

getChildren

public List<N> getChildren()

Description copied from interface: ParentNode

Gets the list of children.

Note: The returned list may not be a copy. Please do not modify the list directly. Instead, use the other methods in this class that are intended for modifying children. Also, if you're iterating over the children list as you're modifying it, then you should first make a copy of the children list to iterate over, in order to avoid ConcurrentModificationException.

Specified by:

getChildren in interface ParentNode<N extends SoyNode>

Returns:

The list of children.

addChild

public void addChild(N child)

Description copied from interface: ParentNode

Adds the given child.

Specified by:

addChild in interface ParentNode<N extends SoyNode>

Parameters:

child - The child to add.

addChild

public void addChild(int index,
                     N child)

Description copied from interface: ParentNode

Adds the given child at the given index (shifting existing children if necessary).

Specified by:

addChild in interface ParentNode<N extends SoyNode>

Parameters:

index - The index to add the child at.

child - The child to add.

removeChild

public void removeChild(int index)

Description copied from interface: ParentNode

Removes the child at the given index.

Specified by:

removeChild in interface ParentNode<N extends SoyNode>

Parameters:

index - The index of the child to remove.

removeChild

public void removeChild(N child)

Description copied from interface: ParentNode

Removes the given child.

Specified by:

removeChild in interface ParentNode<N extends SoyNode>

Parameters:

child - The child to remove.

replaceChild

public void replaceChild(int index,
                         N newChild)

Description copied from interface: ParentNode

Replaces the child at the given index with the given new child.

Specified by:

replaceChild in interface ParentNode<N extends SoyNode>

Parameters:

index - The index of the child to replace.

newChild - The new child.

replaceChild

public void replaceChild(N currChild,
                         N newChild)

Description copied from interface: ParentNode

Replaces the given current child with the given new child.

Specified by:

replaceChild in interface ParentNode<N extends SoyNode>

Parameters:

currChild - The current child to be replaced.

newChild - The new child.

clearChildren

public void clearChildren()

Description copied from interface: ParentNode

Clears the list of children.

Specified by:

clearChildren in interface ParentNode<N extends SoyNode>

addChildren

public void addChildren(List<? extends N> children)

Description copied from interface: ParentNode

Adds the given children.

Specified by:

addChildren in interface ParentNode<N extends SoyNode>

Parameters:

children - The children to add.

addChildren

public void addChildren(int index,
                        List<? extends N> children)

Description copied from interface: ParentNode

Adds the given children at the given index (shifting existing children if necessary).

Specified by:

addChildren in interface ParentNode<N extends SoyNode>

Parameters:

index - The index to add the children at.

children - The children to add.

appendSourceStringForChildren

public void appendSourceStringForChildren(StringBuilder sb)

Description copied from interface: ParentNode

Appends the source strings for all the children to the given StringBuilder.

Specified by:

appendSourceStringForChildren in interface ParentNode<N extends SoyNode>

Parameters:

sb - The StringBuilder to which to append the children's source strings.

getCommandName

public String getCommandName()

Description copied from interface: SoyNode.CommandNode

Returns the Soy command name.

Specified by:

getCommandName in interface SoyNode.CommandNode

getTagString

protected String getTagString()

Returns:

A Soy tag string that could be the Soy tag for this node. Note that this may not necessarily be the actual original Soy tag, but a (sort of) canonical equivalent.

getTagString

protected final String getTagString(boolean selfEnding)