water.rapids.ast.prims.operators

Class AstLAnd

java.lang.Object

water.Iced<T>

water.rapids.ast.AstRoot<T>

water.rapids.ast.AstPrimitive

water.rapids.ast.prims.operators.AstBinOp

water.rapids.ast.prims.operators.AstLAnd

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable

public class AstLAnd
extends AstBinOp

Logical-AND. If the first arg is false, do not execute the 2nd arg.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AstLAnd()

Method Summary

Modifier and Type	Method and Description
static double	and_op(double l, double r)
Val	apply(Env env, Env.StackHelp stk, AstRoot[] asts) Primary method to invoke this function, passing all the parameters as the `asts` list.
double	op(double l, double r) Override to express a basic math primitive
java.lang.String	str() String representation of this Ast object in the Rapids language.

Methods inherited from class water.rapids.ast.prims.operators.AstBinOp

args, categoricalOK, frame_op_scalar, nargs, prim_apply, str_op

Methods inherited from class water.rapids.ast.AstPrimitive

description, example, exec

Methods inherited from class water.rapids.ast.AstRoot

toString

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Constructor Detail

AstLAnd

public AstLAnd()

Method Detail

str

public java.lang.String str()

Description copied from class: AstRoot

String representation of this Ast object in the Rapids language. For AstPrimitives this is the name of the function; for AstParameters this is either the name of the variable, or the value of the numeric constant that the parameter represents. For more complicated constructs such as AstExec or AstFunction this method should return those objects as a Rapids string.

Specified by:

str in class AstRoot

apply

public Val apply(Env env,
                 Env.StackHelp stk,
                 AstRoot[] asts)

Description copied from class: AstPrimitive

Primary method to invoke this function, passing all the parameters as the `asts` list.

Overrides:

apply in class AstBinOp

Parameters:

env - Current execution environment. Variables are looked up here.

stk - TODO need clarification

asts - List of AstRoot expressions that are arguments to the function. First element in this list is the function itself.

Returns:

value resulting from calling the function with the provided list of arguments.

op

public double op(double l,
                 double r)

Description copied from class: AstBinOp

Override to express a basic math primitive

Specified by:

op in class AstBinOp

and_op

public static double and_op(double l,
                            double r)