Squeak Documentation - Class: WonderlandVerifier


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WonderlandVerifier
  category: Balloon3D-Wonderland Misc
  superclass: Object
  subclasses:

This class implements methods for verifying the parameters passed to methods. The intention is that each parameter is verified, and if it's not of the expected type then an error message is constructed and displayed to the user. This provides a gentler method of informing the user of errors than throwing them into the debugger.

instance methods

	no messages

class methods

	parameter parsing
	Verify0To1Number: VerifyActor: VerifyColor: VerifyCondition: VerifyDimension: VerifyDirection: VerifyDuration: VerifyLight: VerifyLocation: VerifyNonNegativeNumber: VerifyNumber: VerifyNumberOrTriple: VerifyPoint: VerifyPointOfView: VerifyPositiveNumber: VerifyReferenceFrame: VerifyStyle: VerifyTarget: VerifyTargetOrPixel: VerifyTriple: VerifyZeroArgumentBlock:

instance methods

no messages

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class methods

	parameter parsing	top
	Verify0To1Number: If the parameter is a valid number this method returns true, otherwise it throws an exception

	VerifyActor: If the parameter is a valid WonderlandActor (or subclass) this method returns true, otherwise it throws an exception

	VerifyColor: If the parameter is a valid color (triple or named color) this method returns true, otherwise it throws an exception

	VerifyCondition: If the parameter is a valid style (BlockContext that takes 1 parameter and returns a boolean) this method returns true, otherwise it throws an exception

	VerifyDimension: If the parameter is a valid dimension this method returns true, otherwise it throws an exception

	VerifyDirection: If the parameter is a valid direction this method returns true, otherwise it throws an exception

	VerifyDuration: If the parameter is a valid duration this method returns true, otherwise it throws an exception

	VerifyLight: If the parameter is a valid type of light this method returns true, otherwise it throws an exception

	VerifyLocation: If the parameter is a valid location this method returns true, otherwise it throws an exception

	VerifyNonNegativeNumber: If the parameter is a valid number this method returns true, otherwise it throws an exception

	VerifyNumber: If the parameter is a valid number this method returns true, otherwise it throws an exception

	VerifyNumberOrTriple: If the parameter is a number or a valid triple this method returns true, otherwise it throws an exception

	VerifyPoint: If the parameter is a valid point this method returns true, otherwise it throws an exception

	VerifyPointOfView: If the parameter is a valid point of view (sextuple or kind of WonderlandActor) this method returns true, otherwise it throws an exception

	VerifyPositiveNumber: If the parameter is a valid number this method returns true, otherwise it throws an exception

	VerifyReferenceFrame: If the parameter is a valid WonderlandActor (or subclass) or WonderlandScene this method returns true, otherwise it throws an exception

	VerifyStyle: If the parameter is a valid style (BlockContext that takes 2 parameters) this method returns true, otherwise it throws an exception

	VerifyTarget: If the parameter is a valid target (triple or kind of WonderlandActor) this method returns true, otherwise it throws an exception

	VerifyTargetOrPixel: If the parameter is a valid target (triple or kind of WonderlandActor) or a pixel coordinate this method returns true, otherwise it throws an exception

	VerifyTriple: If the parameter is a valid triple this method returns true, otherwise it throws an exception

	VerifyZeroArgumentBlock: Return true if the parameter is a zero argument block, otherwise throw an exception