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Fix up some minor issues with default value handling in codegen

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JustOff 2019-03-13 18:49:40 +02:00 • committed by Roy Tam
commit bc82c959ec
1 changed files with 9 additions and 5 deletions
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14
dom/bindings/Codegen.py
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@ -4290,6 +4290,9 @@ class JSToNativeConversionInfo():
for whether we have a JS::Value. Only used when for whether we have a JS::Value. Only used when
defaultValue is not None or when True is passed for defaultValue is not None or when True is passed for
checkForValue to instantiateJSToNativeConversion. checkForValue to instantiateJSToNativeConversion.
This expression may not be already-parenthesized, so if
you use it with && or || make sure to put parens
around it.
${passedToJSImpl} replaced by an expression that evaluates to a boolean ${passedToJSImpl} replaced by an expression that evaluates to a boolean
for whether this value is being passed to a JS- for whether this value is being passed to a JS-
implemented interface. implemented interface.
@ -5146,7 +5149,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
if isinstance(defaultValue, IDLNullValue): if isinstance(defaultValue, IDLNullValue):
extraConditionForNull = "!(${haveValue}) || " extraConditionForNull = "!(${haveValue}) || "
else: else:
extraConditionForNull = "${haveValue} && " extraConditionForNull = "(${haveValue}) && "
else: else:
extraConditionForNull = "" extraConditionForNull = ""
templateBody = handleNull(templateBody, declLoc, templateBody = handleNull(templateBody, declLoc,
@ -5690,7 +5693,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
haveCallable = "${val}.isObject() && " + haveCallable haveCallable = "${val}.isObject() && " + haveCallable
if defaultValue is not None: if defaultValue is not None:
assert(isinstance(defaultValue, IDLNullValue)) assert(isinstance(defaultValue, IDLNullValue))
haveCallable = "${haveValue} && " + haveCallable haveCallable = "(${haveValue}) && " + haveCallable
template = ( template = (
("if (%s) {\n" % haveCallable) + ("if (%s) {\n" % haveCallable) +
conversion + conversion +
@ -5702,7 +5705,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
haveObject = "${val}.isObject()" haveObject = "${val}.isObject()"
if defaultValue is not None: if defaultValue is not None:
assert(isinstance(defaultValue, IDLNullValue)) assert(isinstance(defaultValue, IDLNullValue))
haveObject = "${haveValue} && " + haveObject haveObject = "(${haveValue}) && " + haveObject
template = CGIfElseWrapper(haveObject, template = CGIfElseWrapper(haveObject,
CGGeneric(conversion), CGGeneric(conversion),
CGGeneric("${declName} = nullptr;\n")).define() CGGeneric("${declName} = nullptr;\n")).define()
@ -5770,8 +5773,9 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
return handleJSObjectType(type, isMember, failureCode, exceptionCode, sourceDescription) return handleJSObjectType(type, isMember, failureCode, exceptionCode, sourceDescription)
if type.isDictionary(): if type.isDictionary():
# There are no nullable dictionaries # There are no nullable dictionary arguments or dictionary members
assert not type.nullable() or isCallbackReturnValue assert(not type.nullable() or isCallbackReturnValue or
(isMember and isMember != "Dictionary"))
# All optional dictionaries always have default values, so we # All optional dictionaries always have default values, so we
# should be able to assume not isOptional here. # should be able to assume not isOptional here.
assert not isOptional assert not isOptional