Module org.praxislive.script

Package org.praxislive.script

Interface InlineCommand

All Superinterfaces:

Command

public interface InlineCommand
extends Command

Simple subtype of Command that can be executed and produce a result immediately (without child stack frames or making calls).

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	InlineCommand.InlineStackFrame	A default implementation of StackFrame for use by InlineCommand implementations.

Method Summary

Modifier and Type	Method	Description
default InlineCommand.InlineStackFrame	createStackFrame(Namespace namespace, List<Value> args)	Create a StackFrame to execute the command with the provided Namespace and arguments.
List<Value>	process(Env context, Namespace namespace, List<Value> args)	Execute the command with the given environment, namespace and arguments.

Method Details

process

List<Value> process(Env context,
 Namespace namespace,
 List<Value> args)
             throws Exception

Execute the command with the given environment, namespace and arguments.

Parameters:

context - current environment

namespace - current namespace

args - arguments

Returns:

result

Throws:

Exception - on error

createStackFrame

default InlineCommand.InlineStackFrame createStackFrame(Namespace namespace,
 List<Value> args)
                                                 throws Exception

Create a StackFrame to execute the command with the provided Namespace and arguments.

The default implementation of this method returns an InlineCommand.InlineStackFrame with this command, and provided namespace and arguments. Implementations can override to further validate the context or delegate to another command.

Specified by:

createStackFrame in interface Command

Parameters:

namespace - current namespace

args - arguments

Returns:

stack frame to execute command with provided arguments

Throws:

Exception - if stack frame cannot be created