
DIRECTORY
Prop USING [PropList],
Rope USING [ROPE];

ImagerError: CEDAR DEFINITIONS
~ BEGIN

ErrorDesc: TYPE ~ RECORD [code: ErrorCode, explanation: Rope.ROPE, propList: Prop.PropList ¬ NIL];

Error: ERROR [error: ErrorDesc];

Warning: SIGNAL [error: ErrorDesc];

AtomFromErrorCode: PROC [code: ErrorCode] RETURNS [ATOM];

ErrorCode: TYPE ~ MACHINE DEPENDENT {
ok (0), -- unused
bounds, -- A value is out of range
overflow, -- A computation overflowed
zeroDivide, -- divide by zero
nilFault, -- a NIL value was encountered
insufficientMemory, -- out of memory
ioError, -- unrecoverable I/O error
timeout, -- some resource timed out
eof, -- unexpected end-of-file
numericalInstability, -- dubious floating-point computation
bug, -- an internal error
fileNotFound (20),
colorModelOperatorNotFound,
colorOperatorNotFound,
colorNotFound,
decompressorNotFound,
fontNotFound,
operatorNotFound,
resourceNotFound,
accessError,
syntax (40),
undefinedOperation,
invalidCompressedSequence,
malformedFont,
invalidEncoding,
invalidHeader,
invalidIdentifier,
invalidInstructionProperty,
invalidName,
invalidString,
invalidToner(50),
invalidVersion,
malformedDataFile,
nullValue (60), -- an uninitialized value was encountered
illegalAlternateMetrics,
illegalColor,
unknownSpecialColor,
unknownSignalType,
wrongShape,
wrongSize,
notCardinal,
notInteger,
notNumber,
wrongType(70),
noFont,
illegalArguments,
illegalTransformation,
illegalPixelMask,
illegalPropertyVector,
illegalRunVector,
undefinedProperty,
stackOverflow (80),
stackUnderflow,
saveRestoreMismatch,
markMismatch,
unmarkFailed,
invalidOperationSequence,
obsoleteConstruct (100),
unsupportedColorOperator,
notImplemented, -- not currently implemented
unimplemented, -- not implemented, probably for a good reason
squareEndOnStrokeOfZeroLength (120),
unableToProperlyAdjustMaskPositions,
noSubstituteColor,
fontSubstitution,
appearance,
error (140), -- an error raised explicitly in a master
copySensitive (160), -- a warning that a page's appearance depends on the copy number
(BYTE.LAST)
};


END.
   Æ  
ImagerError.mesa
Copyright Ó 1991, 1992 by Xerox Corporation.  All rights reserved.
Michael Plass, November 21, 1991 2:49 pm PST
The error code definition allows for additional values to be defined without changing this interface; these new codes will be defined as constants in ImagerErrorsExtras.
Not an error
Basic errors
Resource errors
Syntax errors
Value errors
Control errors
Implementation restrictions
Appearance
Client
Client
Extension
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