com.google.template.soy.soytree

Class MsgSelectNode

java.lang.Object

com.google.template.soy.basetree.AbstractNode

com.google.template.soy.soytree.AbstractSoyNode

com.google.template.soy.soytree.MsgSelectNode

All Implemented Interfaces:

Node, ParentNode<CaseOrDefaultNode>, SoyNode, SoyNode.CommandNode, SoyNode.ExprHolderNode, SoyNode.MsgSubstUnitNode, SoyNode.ParentSoyNode<CaseOrDefaultNode>, SoyNode.SplitLevelTopNode<CaseOrDefaultNode>, SoyNode.StandaloneNode

public final class MsgSelectNode
extends AbstractSoyNode
implements SoyNode.MsgSubstUnitNode, SoyNode.SplitLevelTopNode<CaseOrDefaultNode>, SoyNode.ExprHolderNode

Node representing a 'select' block.

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

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.template.soy.soytree.SoyNode

SoyNode.BlockCommandNode, SoyNode.BlockNode, SoyNode.CommandNode, SoyNode.ConditionalBlockNode, SoyNode.ExprHolderNode, SoyNode.Kind, SoyNode.LocalVarBlockNode, SoyNode.LocalVarInlineNode, SoyNode.LocalVarNode, SoyNode.MsgBlockNode, SoyNode.MsgPlaceholderInitialNode, SoyNode.MsgSubstUnitNode, SoyNode.ParentSoyNode<N extends SoyNode>, SoyNode.RenderUnitNode, SoyNode.SplitLevelTopNode<N extends SoyNode>, SoyNode.StandaloneNode, SoyNode.StatementNode

Field Summary

Fields

Modifier and Type	Field and Description
static String	FALLBACK_BASE_SELECT_VAR_NAME Fallback base select var name.

Constructor Summary

Constructors

Constructor and Description
MsgSelectNode(int id, SourceLocation location, ExprNode selectExpr)
MsgSelectNode(int id, SourceLocation sourceLocation, ExprRootNode selectExpr, String baseSelectVarName)

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.
MsgSelectNode	copy(CopyState copyState) Copies this node.
String	getBaseVarName() Returns the base select var name (what the translator sees).
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 expression for the value to select on.
com.google.common.collect.ImmutableList<ExprRootNode>	getExprList() Returns the list of expressions in this node.
SoyNode.Kind	getKind() Returns this node's kind (corresponding to this node's specific type).
SoyNode.MsgBlockNode	getParent() Gets this node's parent.
protected String	getTagString()
protected String	getTagString(boolean selfEnding)
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.
boolean	shouldUseSameVarNameAs(SoyNode.MsgSubstUnitNode other) Returns whether this substitution unit should use the same var name as another substitution unit.
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.soytree.SoyNode

getId, setId

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, toSourceString

Field Detail

FALLBACK_BASE_SELECT_VAR_NAME

public static final String FALLBACK_BASE_SELECT_VAR_NAME

Fallback base select var name.

See Also:

Constant Field Values

Constructor Detail

MsgSelectNode

public MsgSelectNode(int id,
                     SourceLocation location,
                     ExprNode selectExpr)

MsgSelectNode

public MsgSelectNode(int id,
                     SourceLocation sourceLocation,
                     ExprRootNode selectExpr,
                     @Nullable
                     String baseSelectVarName)

Parameters:

id - The id for this node.

sourceLocation - The node's source location.

selectExpr - The expression for the value to select on.

baseSelectVarName - The base select var name to use (what the translator sees), or null if it should be generated from the select expression.

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

getExpr

public ExprRootNode getExpr()

Returns the expression for the value to select on.

getBaseVarName

public String getBaseVarName()

Returns the base select var name (what the translator sees).

Specified by:

getBaseVarName in interface SoyNode.MsgSubstUnitNode

shouldUseSameVarNameAs

public boolean shouldUseSameVarNameAs(SoyNode.MsgSubstUnitNode other)

Description copied from interface: SoyNode.MsgSubstUnitNode

Returns whether this substitution unit should use the same var name as another substitution unit. (For placeholders, this means the other placeholder is exactly the same as this one, i.e. it appears twice in the same message.)

Specified by:

shouldUseSameVarNameAs in interface SoyNode.MsgSubstUnitNode

Parameters:

other - The other substitution unit to check against.

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

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

getParent

public SoyNode.MsgBlockNode 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.MsgSubstUnitNode

Specified by:

getParent in interface SoyNode.StandaloneNode

Overrides:

getParent in class AbstractSoyNode

Returns:

This node's parent.

copy

public MsgSelectNode 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.

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.

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)