sleep.engine.atoms
Class Check
- Serializable
public class Check
implements Serializable
A check object is the internal atomic step representing a predicate condition. This API is exposed to allow developers
implementing a PredicateEnvironment bridge to take advantage of this API.
Everything required to setup the predicate check, evaluate all the ands/ors, and return true or false is handled by this
atomic step.
To better illustrate what a Check is:
if ($x == 3)
{
println("\$x is 3");
}
The above sleep code would be compiled into a sequence that looks like:
[Goto]: (loop: false)
[Condition]:
[Predicate]: name->== negated->false
[Setup]:
[Create Frame]
[Scalar]: $x
[Push]
[Scalar]: 3
[Push]
[If true]:
[Create Frame]
[Parsed Literal] null
[Element]: $x is 3
[Push]
[Function Call]: &println
[If False]:
The parts that are bolded are representative of the word done by the Check object.
Check(String n, Block s) - Constructs a check object, call by the sleep engine.
|
boolean | check(ScriptEnvironment env) - Performs this "check".
|
void | setChoices(Check t, Check f) - Sets up the true and false choices, again this is handled by the sleep engine
|
void | setInfo(int _hint) - Sets the line number in code where this check object occurs, again called by the sleep engine
|
String | toString() - Returns a string representation of this object
|
String | toString(String prefix) - Converts this object to a string, used by the sleep engine for constructing an AST like thing
|
Check
public Check(String n,
Block s)
Constructs a check object, call by the sleep engine.
check
public boolean check(ScriptEnvironment env)
Performs this "check". Returns the value of the condition that is checked.
setChoices
public void setChoices(Check t,
Check f)
Sets up the true and false choices, again this is handled by the sleep engine
setInfo
public void setInfo(int _hint)
Sets the line number in code where this check object occurs, again called by the sleep engine
toString
public String toString()
Returns a string representation of this object
toString
public String toString(String prefix)
Converts this object to a string, used by the sleep engine for constructing an AST like thing