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Handle lookup errors "silently" in PartialEvaluator.hasBlendModes (PR 11680 follow-up)

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Given that this method is used during what's essentially a *pre*-parsing stage, before the actual OperatorList parsing occurs, on second thought it doesn't seem at all necessary to warn and trigger fallback in cases where there's lookup errors.

*Please note:* Any any errors will still be either suppressed or thrown, according to the `ignoreErrors` option, during the *actual* OperatorList parsing.
This commit is contained in:
Jonas Jenwald 2020-07-14 13:00:35 +02:00
parent 6c39aff374
commit 84476da26e
1 changed files with 10 additions and 28 deletions
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38
src/core/evaluator.js
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@ -264,20 +264,11 @@ class PartialEvaluator {
if (ex instanceof MissingDataException) {
throw ex;
}
if (this.options.ignoreErrors) {
if (graphicState instanceof Ref) {
// Avoid parsing a corrupt ExtGState more than once.
processed[graphicState.toString()] = true;
}
// Error(s) in the ExtGState -- sending unsupported feature
// notification and allow parsing/rendering to continue.
this.handler.send("UnsupportedFeature", {
featureId: UNSUPPORTED_FEATURES.errorExtGState,
});
warn(`hasBlendModes - ignoring ExtGState: "${ex}".`);
continue;
}
throw ex;
// Avoid parsing a corrupt ExtGState more than once.
processed[graphicState.toString()] = true;
info(`hasBlendModes - ignoring ExtGState: "${ex}".`);
continue;
}
}
if (!(graphicState instanceof Dict)) {
@ -326,20 +317,11 @@ class PartialEvaluator {
if (ex instanceof MissingDataException) {
throw ex;
}
if (this.options.ignoreErrors) {
if (xObject instanceof Ref) {
// Avoid parsing a corrupt XObject more than once.
processed[xObject.toString()] = true;
}
// Error(s) in the XObject -- sending unsupported feature
// notification and allow parsing/rendering to continue.
this.handler.send("UnsupportedFeature", {
featureId: UNSUPPORTED_FEATURES.errorXObject,
});
warn(`hasBlendModes - ignoring XObject: "${ex}".`);
continue;
}
throw ex;
// Avoid parsing a corrupt XObject more than once.
processed[xObject.toString()] = true;
info(`hasBlendModes - ignoring XObject: "${ex}".`);
continue;
}
}
if (!isStream(xObject)) {