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Implement FromJSValConvertible for union types.

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This commit is contained in:
Ms2ger 2014-04-26 16:24:41 +02:00
parent adcc7e694f
commit 9cc5460dd6
1 changed files with 18 additions and 9 deletions
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27
src/components/script/dom/bindings/codegen/CodegenRust.py
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@ -581,10 +581,10 @@ def getJSToNativeConversionTemplate(type, descriptorProvider, failureCode=None,
declType = CGWrapper(declType, pre="Option<", post=" >")
value = CGWrapper(value, pre="Some(", post=")")
templateBody = CGGeneric("match %s::from_value(cx, ${val}) {\n"
templateBody = CGGeneric("match FromJSValConvertible::from_jsval(cx, ${val}, ()) {\n"
" Err(()) => { %s },\n"
" Ok(value) => %s,\n"
"}" % (type.name, exceptionCode, value.define()))
"}" % (exceptionCode, value.define()))
if type.nullable():
templateBody = CGIfElseWrapper(
@ -2847,7 +2847,7 @@ class CGUnionConversionStruct(CGThing):
self.type = type
self.descriptorProvider = descriptorProvider
def from_value_method(self):
def from_jsval(self):
memberTypes = self.type.flatMemberTypes
names = []
conversions = []
@ -2941,9 +2941,13 @@ class CGUnionConversionStruct(CGThing):
conversions.append(CGGeneric(
"throw_not_in_union(cx, \"%s\");\n"
"Err(())" % ", ".join(names)))
return CGWrapper(
method = CGWrapper(
CGIndenter(CGList(conversions, "\n\n")),
pre="pub fn from_value(cx: *JSContext, value: JSVal) -> Result<%s, ()> {\n" % self.type,
pre="fn from_jsval(cx: *JSContext, value: JSVal, _option: ()) -> Result<%s, ()> {\n" % self.type,
post="\n}")
return CGWrapper(
CGIndenter(method),
pre="impl FromJSValConvertible<()> for %s {\n" % self.type,
post="\n}")
def try_method(self, t):
@ -2953,16 +2957,21 @@ class CGUnionConversionStruct(CGThing):
return CGWrapper(
CGIndenter(jsConversion, 4),
pre="pub fn TryConvertTo%s(cx: *JSContext, value: JSVal) -> %s {\n" % (t.name, returnType),
pre="fn TryConvertTo%s(cx: *JSContext, value: JSVal) -> %s {\n" % (t.name, returnType),
post="\n}")
def define(self):
methods = [self.from_value_method()]
methods.extend(self.try_method(t) for t in self.type.flatMemberTypes)
from_jsval = self.from_jsval()
methods = CGIndenter(CGList([
self.try_method(t) for t in self.type.flatMemberTypes
], "\n\n"))
return """
%s
impl %s {
%s
}""" % (self.type, CGIndenter(CGList(methods, "\n\n")).define())
}
""" % (from_jsval.define(), self.type, methods.define())
class ClassItem: