android.databinding.tool.expr

Class BuiltInVariableExpr

java.lang.Object

android.databinding.tool.expr.Expr

android.databinding.tool.expr.IdentifierExpr

android.databinding.tool.expr.BuiltInVariableExpr

All Implemented Interfaces:

android.databinding.tool.expr.VersionProvider, android.databinding.tool.processing.scopes.LocationScopeProvider, android.databinding.tool.processing.scopes.ScopeProvider

Direct Known Subclasses:

ViewFieldExpr

public class BuiltInVariableExpr
extends IdentifierExpr

Field Summary

Fields inherited from class android.databinding.tool.expr.Expr

KEY_END, KEY_JOIN, KEY_JOIN_END, KEY_JOIN_START, KEY_START, mChildren, NO_ID

Method Summary

Modifier and Type	Method and Description
Expr	cloneToModel(ExprModel model)
protected java.util.List<Dependency>	constructDependencies()
protected android.databinding.tool.writer.KCode	generateCode()
java.lang.String	getInvertibleError()
boolean	isDeclared()
boolean	isDynamic() Whether the result of this expression can change or not.

Methods inherited from class android.databinding.tool.expr.IdentifierExpr

asPackage, computeUniqueKey, generateInverse, getName, getUserDefinedType, injectSafeUnboxing, resolveType, setDeclared, setUserDefinedType, toString

Methods inherited from class android.databinding.tool.expr.Expr

addJustMeToExecutionPath, addLocation, assertIsInvertible, canBeEvaluatedToAVariable, canBeInvalidated, cloneToModel, considerElevatingConditionals, constructDynamicChildrenDependencies, enableDirectInvalidation, getAllCalculationPaths, getChildren, getDefaultValue, getDependants, getDependencies, getId, getInvalidFlags, getLocations, getModel, getParents, getPredicateInvalidFlags, getReadSoFar, getRequirementFlagIndex, getRequirementId, getResolvedType, getShouldReadFlags, getShouldReadFlagsWithConditionals, getUniqueKey, getUpdateRegistrationCall, getVersion, hasConditionalDependant, hasId, hasNestedCannotRead, invalidateReadFlags, isBindingExpression, isConditional, isEqualityCheck, isIsUsedInCallback, isObservable, isRead, isUsed, join, join, markAsBindingExpression, markAsReadIfDone, markAsUsed, markAsUsedInCallback, markFlagsAsRead, onSwappedWith, provideScopeLocation, recursivelyInjectSafeUnboxing, resetResolvedType, resolveListeners, resolveTwoWayExpressions, safeUnboxChild, setId, setModel, setRequirementId, setUnwrapObservableFields, shouldReadNow, toCode, toExecutionPath, toExecutionPath, toExecutionPathInOrder, toExecutionPathInOrder, toFullCode, trimShouldReadFlags, unwrapChildTo, unwrapObservableField, unwrapObservableFieldChildren, updateExpr

Methods inherited from class java.lang.Object

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

Method Detail

isDynamic

public boolean isDynamic()

Description copied from class: Expr

Whether the result of this expression can change or not. For example, 3 + 5 can not change vs 3 + x may change. Default implementations checks children and returns true if any of them returns true

Overrides:

isDynamic in class IdentifierExpr

Returns:

True if the result of this expression may change due to variables

constructDependencies

protected java.util.List<Dependency> constructDependencies()

Overrides:

constructDependencies in class IdentifierExpr

generateCode

protected android.databinding.tool.writer.KCode generateCode()

Overrides:

generateCode in class IdentifierExpr

isDeclared

public boolean isDeclared()

Overrides:

isDeclared in class IdentifierExpr

getInvertibleError

public java.lang.String getInvertibleError()

Overrides:

getInvertibleError in class IdentifierExpr

Returns:

The reason the expression wasn't invertible or null if it was invertible.

cloneToModel

public Expr cloneToModel(ExprModel model)

Overrides:

cloneToModel in class IdentifierExpr