Package dev.cel.common.ast

Class CelExpr

java.lang.Object

dev.cel.common.ast.CelExpr

All Implemented Interfaces:

Expression

@Immutable
public abstract class CelExpr
extends java.lang.Object
implements Expression

An abstract representation of a common expression. Refer to Expression for details.

This is the native type equivalent of Expr message in syntax.proto.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CelExpr.Builder	Builder for CelExpr.
static class	CelExpr.CelCall	A call expression.
static class	CelExpr.CelComprehension	A comprehension expression applied to a list or map.
static class	CelExpr.CelIdent	An identifier expression.
static class	CelExpr.CelList	A list creation expression.
static class	CelExpr.CelMap	A map creation expression.
static class	CelExpr.CelNotSet	An unset expression.
static class	CelExpr.CelSelect	A field selection expression.
static class	CelExpr.CelStruct	A message creation expression.
static class	CelExpr.ExprKind	Denotes the kind of the expression.

Nested classes/interfaces inherited from interface dev.cel.common.ast.Expression

Expression.Call<E extends Expression>, Expression.Comprehension<E extends Expression>, Expression.Ident, Expression.List<E extends Expression>, Expression.Map<E extends Expression.Map.Entry<?>>, Expression.Select<E extends Expression>, Expression.Struct<E extends Expression.Struct.Entry<?>>

Constructor Summary

Constructors

Constructor	Description
CelExpr()

Method Summary

Modifier and Type	Method	Description
CelExpr.CelCall	call()	Gets the underlying call expression.
CelExpr.CelCall	callOrDefault()	Gets the underlying call expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.CALL.
CelExpr.CelComprehension	comprehension()	Gets the underlying comprehension expression.
CelExpr.CelComprehension	comprehensionOrDefault()	Gets the underlying comprehension expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.COMPREHENSION.
CelConstant	constant()	Gets the underlying constant expression.
CelConstant	constantOrDefault()	Gets the underlying constant expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.CONSTANT.
abstract CelExpr.ExprKind	exprKind()	Represents the variant of the expression.
CelExpr.ExprKind.Kind	getKind()	Represents the enumeration value for the underlying expression kind.
abstract long	id()	Required.
CelExpr.CelIdent	ident()	Gets the underlying identifier expression.
CelExpr.CelIdent	identOrDefault()	Gets the underlying identifier expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.IDENT.
CelExpr.CelList	list()	Gets the underlying identifier expression.
CelExpr.CelList	listOrDefault()	Gets the underlying list expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.LIST.
CelExpr.CelMap	map()	Gets the underlying map expression.
CelExpr.CelMap	mapOrDefault()	Gets the underlying map expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.MAP.
static CelExpr.Builder	newBuilder()
static CelExpr	ofCall(long id, java.util.Optional<CelExpr> targetExpr, java.lang.String function, com.google.common.collect.ImmutableList<CelExpr> arguments)
static CelExpr	ofComprehension(long id, java.lang.String iterVar, CelExpr iterRange, java.lang.String accuVar, CelExpr accuInit, CelExpr loopCondition, CelExpr loopStep, CelExpr result)
static CelExpr	ofConstant(long id, CelConstant celConstant)
static CelExpr	ofIdent(long id, java.lang.String identName)
static CelExpr	ofList(long id, com.google.common.collect.ImmutableList<CelExpr> elements, com.google.common.collect.ImmutableList<java.lang.Integer> optionalIndices)
static CelExpr	ofMap(long id, com.google.common.collect.ImmutableList<CelExpr.CelMap.Entry> entries)
static CelExpr.CelMap.Entry	ofMapEntry(long id, CelExpr mapKey, CelExpr value, boolean isOptionalEntry)
static CelExpr	ofNotSet(long id)
static CelExpr	ofSelect(long id, CelExpr operandExpr, java.lang.String field, boolean isTestOnly)
static CelExpr	ofStruct(long id, java.lang.String messageName, com.google.common.collect.ImmutableList<CelExpr.CelStruct.Entry> entries)
static CelExpr.CelStruct.Entry	ofStructEntry(long id, java.lang.String fieldKey, CelExpr value, boolean isOptionalEntry)
CelExpr.CelSelect	select()	Gets the underlying select expression.
CelExpr.CelSelect	selectOrDefault()	Gets the underlying select expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.SELECT.
CelExpr.CelStruct	struct()	Gets the underlying struct expression.
CelExpr.CelStruct	structOrDefault()	Gets the underlying struct expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.STRUCT.
abstract CelExpr.Builder	toBuilder()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CelExpr

public CelExpr()

Method Detail

id

public abstract long id()

Description copied from interface: Expression

Required. An id assigned to this node by the parser which is unique in a given expression tree. This is used to associate type information and other attributes to a node in the parse tree.

Specified by:

id in interface Expression

exprKind

public abstract CelExpr.ExprKind exprKind()

Represents the variant of the expression.

getKind

public CelExpr.ExprKind.Kind getKind()

Description copied from interface: Expression

Represents the enumeration value for the underlying expression kind.

Specified by:

getKind in interface Expression

constant

public CelConstant constant()

Gets the underlying constant expression.

Specified by:

constant in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.CONSTANT.

ident

public CelExpr.CelIdent ident()

Gets the underlying identifier expression.

Specified by:

ident in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.IDENT.

select

public CelExpr.CelSelect select()

Gets the underlying select expression.

Specified by:

select in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.SELECT.

call

public CelExpr.CelCall call()

Gets the underlying call expression.

Specified by:

call in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.CALL.

list

public CelExpr.CelList list()

Gets the underlying identifier expression.

Specified by:

list in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.LIST.

struct

public CelExpr.CelStruct struct()

Gets the underlying struct expression.

Specified by:

struct in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.STRUCT.

map

public CelExpr.CelMap map()

Gets the underlying map expression.

Specified by:

map in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.MAP.

comprehension

public CelExpr.CelComprehension comprehension()

Gets the underlying comprehension expression.

Specified by:

comprehension in interface Expression

Throws:

java.lang.UnsupportedOperationException - if expression is not CelExpr.ExprKind.Kind.COMPREHENSION.

constantOrDefault

public CelConstant constantOrDefault()

Gets the underlying constant expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.CONSTANT.

identOrDefault

public CelExpr.CelIdent identOrDefault()

Gets the underlying identifier expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.IDENT.

selectOrDefault

public CelExpr.CelSelect selectOrDefault()

Gets the underlying select expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.SELECT.

callOrDefault

public CelExpr.CelCall callOrDefault()

Gets the underlying call expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.CALL.

listOrDefault

public CelExpr.CelList listOrDefault()

Gets the underlying list expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.LIST.

structOrDefault

public CelExpr.CelStruct structOrDefault()

Gets the underlying struct expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.STRUCT.

mapOrDefault

public CelExpr.CelMap mapOrDefault()

Gets the underlying map expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.MAP.

comprehensionOrDefault

public CelExpr.CelComprehension comprehensionOrDefault()

Gets the underlying comprehension expression or a default instance of one if expression is not CelExpr.ExprKind.Kind.COMPREHENSION.

toBuilder

public abstract CelExpr.Builder toBuilder()

newBuilder

public static CelExpr.Builder newBuilder()

ofNotSet

public static CelExpr ofNotSet(long id)

ofConstant

public static CelExpr ofConstant(long id,
                                 CelConstant celConstant)

ofIdent

public static CelExpr ofIdent(long id,
                              java.lang.String identName)

ofSelect

public static CelExpr ofSelect(long id,
                               CelExpr operandExpr,
                               java.lang.String field,
                               boolean isTestOnly)

ofCall

public static CelExpr ofCall(long id,
                             java.util.Optional<CelExpr> targetExpr,
                             java.lang.String function,
                             com.google.common.collect.ImmutableList<CelExpr> arguments)

ofList

public static CelExpr ofList(long id,
                             com.google.common.collect.ImmutableList<CelExpr> elements,
                             com.google.common.collect.ImmutableList<java.lang.Integer> optionalIndices)

ofStruct

public static CelExpr ofStruct(long id,
                               java.lang.String messageName,
                               com.google.common.collect.ImmutableList<CelExpr.CelStruct.Entry> entries)

ofMap

public static CelExpr ofMap(long id,
                            com.google.common.collect.ImmutableList<CelExpr.CelMap.Entry> entries)

ofStructEntry

public static CelExpr.CelStruct.Entry ofStructEntry(long id,
                                                    java.lang.String fieldKey,
                                                    CelExpr value,
                                                    boolean isOptionalEntry)

ofMapEntry

public static CelExpr.CelMap.Entry ofMapEntry(long id,
                                              CelExpr mapKey,
                                              CelExpr value,
                                              boolean isOptionalEntry)

ofComprehension

public static CelExpr ofComprehension(long id,
                                      java.lang.String iterVar,
                                      CelExpr iterRange,
                                      java.lang.String accuVar,
                                      CelExpr accuInit,
                                      CelExpr loopCondition,
                                      CelExpr loopStep,
                                      CelExpr result)

toString

public final java.lang.String toString()

Overrides:

toString in class java.lang.Object