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codegen: Move conversion behaviour to a common function

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This commit is contained in:
Emilio Cobos Álvarez 2016-01-10 17:36:59 +01:00
parent e977a6e69a
commit 2f1eee599c
1 changed files with 32 additions and 24 deletions
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56
components/script/dom/bindings/codegen/CodegenRust.py
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@ -775,20 +775,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
raise TypeError("Can't handle SpiderMonkey interface arguments yet")
if type.isDOMString():
assert not isEnforceRange and not isClamp
treatAs = {
"Default": "StringificationBehavior::Default",
"EmptyString": "StringificationBehavior::Empty",
}
if treatNullAs not in treatAs:
raise TypeError("We don't support [TreatNullAs=%s]" % treatNullAs)
if type.nullable():
# Note: the actual behavior passed here doesn't matter for nullable
# strings.
nullBehavior = "StringificationBehavior::Default"
else:
nullBehavior = treatAs[treatNullAs]
nullBehavior = getConversionConfigForType(type, isEnforceRange, isClamp, treatNullAs)
conversionCode = (
"match FromJSValConvertible::from_jsval(cx, ${val}, %s) {\n"
@ -1002,16 +989,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
if not type.isPrimitive():
raise TypeError("Need conversion for argument type '%s'" % str(type))
if type.isInteger():
if isEnforceRange:
conversionBehavior = "ConversionBehavior::EnforceRange"
elif isClamp:
conversionBehavior = "ConversionBehavior::Clamp"
else:
conversionBehavior = "ConversionBehavior::Default"
else:
assert not isEnforceRange and not isClamp
conversionBehavior = "()"
conversionBehavior = getConversionConfigForType(type, isEnforceRange, isClamp, treatNullAs)
if failureCode is None:
failureCode = 'return false'
@ -1215,6 +1193,36 @@ def typeNeedsCx(type, retVal=False):
return type.isAny() or type.isObject()
# Returns a conversion behavior suitable for a type
def getConversionConfigForType(type, isEnforceRange, isClamp, treatNullAs):
if type.isSequence():
return getConversionConfigForType(type.unroll(), isEnforceRange, isClamp, treatNullAs)
if type.isDOMString():
assert not isEnforceRange and not isClamp
treatAs = {
"Default": "StringificationBehavior::Default",
"EmptyString": "StringificationBehavior::Empty",
}
if treatNullAs not in treatAs:
raise TypeError("We don't support [TreatNullAs=%s]" % treatNullAs)
if type.nullable():
# Note: the actual behavior passed here doesn't matter for nullable
# strings.
return "StringificationBehavior::Default"
else:
return treatAs[treatNullAs]
if type.isInteger():
if isEnforceRange:
return "ConversionBehavior::EnforceRange"
elif isClamp:
return "ConversionBehavior::Clamp"
else:
return "ConversionBehavior::Default"
assert not isEnforceRange and not isClamp
return "()"
# Returns a CGThing containing the type of the return value.
def getRetvalDeclarationForType(returnType, descriptorProvider):
if returnType is None or returnType.isVoid():