diff options
Diffstat (limited to 'components/script_bindings/codegen/CodegenRust.py')
| -rw-r--r-- | components/script_bindings/codegen/CodegenRust.py | 97 |
1 files changed, 22 insertions, 75 deletions
diff --git a/components/script_bindings/codegen/CodegenRust.py b/components/script_bindings/codegen/CodegenRust.py index 48f024be70f..458aa7508b0 100644 --- a/components/script_bindings/codegen/CodegenRust.py +++ b/components/script_bindings/codegen/CodegenRust.py @@ -742,6 +742,19 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, "}") return templateBody + # A helper function for types that implement FromJSValConvertible trait + def fromJSValTemplate(config, errorHandler, exceptionCode): + return f"""match FromJSValConvertible::from_jsval(*cx, ${{val}}, {config}) {{ + Ok(ConversionResult::Success(value)) => value, + Ok(ConversionResult::Failure(error)) => {{ + {errorHandler} + }} + _ => {{ + {exceptionCode} + }}, +}} +""" + assert not (isEnforceRange and isClamp) # These are mutually exclusive if type.isSequence() or type.isRecord(): @@ -755,13 +768,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.nullable(): declType = CGWrapper(declType, pre="Option<", post=" >") - templateBody = (f"match FromJSValConvertible::from_jsval(*cx, ${{val}}, {config}) {{\n" - " Ok(ConversionResult::Success(value)) => value,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + templateBody = fromJSValTemplate(config, failOrPropagate, exceptionCode) return handleOptional(templateBody, declType, handleDefault("None")) @@ -770,13 +777,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.nullable(): declType = CGWrapper(declType, pre="Option<", post=" >") - templateBody = ("match FromJSValConvertible::from_jsval(*cx, ${val}, ()) {\n" - " Ok(ConversionResult::Success(value)) => value,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + templateBody = fromJSValTemplate("()", failOrPropagate, exceptionCode) dictionaries = [ memberType @@ -836,21 +837,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, # once again be providing a Promise to signal completion of an # operation, which would then not be exposed to anyone other than # our own implementation code. - templateBody = fill( - """ - { // Scope for our JSAutoRealm. - - rooted!(in(*cx) let globalObj = CurrentGlobalOrNull(*cx)); - let promiseGlobal = D::GlobalScope::from_object_maybe_wrapped(globalObj.handle().get(), *cx); - - rooted!(in(*cx) let mut valueToResolve = $${val}.get()); - if !JS_WrapValue(*cx, valueToResolve.handle_mut()) { - $*{exceptionCode} - } - D::Promise::new_resolved(&promiseGlobal, cx, valueToResolve.handle()) - } - """, - exceptionCode=exceptionCode) + templateBody = fromJSValTemplate("()", failOrPropagate, exceptionCode) if isArgument: declType = CGGeneric("&D::Promise") @@ -960,14 +947,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.isDOMString(): nullBehavior = getConversionConfigForType(type, isEnforceRange, isClamp, treatNullAs) - conversionCode = ( - f"match FromJSValConvertible::from_jsval(*cx, ${{val}}, {nullBehavior}) {{\n" - " Ok(ConversionResult::Success(strval)) => strval,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + conversionCode = fromJSValTemplate(nullBehavior, failOrPropagate, exceptionCode) if defaultValue is None: default = None @@ -989,14 +969,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.isUSVString(): assert not isEnforceRange and not isClamp - conversionCode = ( - "match FromJSValConvertible::from_jsval(*cx, ${val}, ()) {\n" - " Ok(ConversionResult::Success(strval)) => strval,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + conversionCode = fromJSValTemplate("()", failOrPropagate, exceptionCode) if defaultValue is None: default = None @@ -1018,14 +991,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.isByteString(): assert not isEnforceRange and not isClamp - conversionCode = ( - "match FromJSValConvertible::from_jsval(*cx, ${val}, ()) {\n" - " Ok(ConversionResult::Success(strval)) => strval,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + conversionCode = fromJSValTemplate("()", failOrPropagate, exceptionCode) if defaultValue is None: default = None @@ -1056,12 +1022,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, else: handleInvalidEnumValueCode = "return true;" - template = ( - "match FromJSValConvertible::from_jsval(*cx, ${val}, ()) {" - f" Err(_) => {{ {exceptionCode} }},\n" - " Ok(ConversionResult::Success(v)) => v,\n" - f" Ok(ConversionResult::Failure(error)) => {{ {handleInvalidEnumValueCode} }},\n" - "}") + template = fromJSValTemplate("()", handleInvalidEnumValueCode, exceptionCode) if defaultValue is not None: assert defaultValue.type.tag() == IDLType.Tags.domstring @@ -1192,14 +1153,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type_needs_tracing(type): declType = CGTemplatedType("RootedTraceableBox", declType) - template = ( - "match FromJSValConvertible::from_jsval(*cx, ${val}, ()) {\n" - " Ok(ConversionResult::Success(dictionary)) => dictionary,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }},\n" - "}") + template = fromJSValTemplate("()", failOrPropagate, exceptionCode) return handleOptional(template, declType, handleDefault(empty)) @@ -1220,14 +1174,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None, if type.nullable(): declType = CGWrapper(declType, pre="Option<", post=">") - template = ( - f"match FromJSValConvertible::from_jsval(*cx, ${{val}}, {conversionBehavior}) {{\n" - " Ok(ConversionResult::Success(v)) => v,\n" - " Ok(ConversionResult::Failure(error)) => {\n" - f"{indent(failOrPropagate, 8)}\n" - " }\n" - f" _ => {{ {exceptionCode} }}\n" - "}") + template = fromJSValTemplate(conversionBehavior, failOrPropagate, exceptionCode) if defaultValue is not None: if isinstance(defaultValue, IDLNullValue): |