implemented missed constructor for DOMException; fixed the tests expectations

2 files changed, 95 insertions, 34 deletions

diff --git a/components/script/dom/domexception.rs b/components/script/dom/domexception.rs
index 6f35b23f7a8..b5b0ca5a8c4 100644
--- a/components/script/dom/domexception.rs
+++ b/components/script/dom/domexception.rs
@@ -5,6 +5,7 @@
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding;
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionConstants;
 use crate::dom::bindings::codegen::Bindings::DOMExceptionBinding::DOMExceptionMethods;
+use crate::dom::bindings::error::Error;
 use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
@@ -38,43 +39,46 @@ pub enum DOMErrorName {
     NotReadableError = DOMExceptionConstants::NOT_READABLE_ERR,
 }
 
+impl DOMErrorName {
+    pub fn from(s: &DOMString) -> Option<DOMErrorName> {
+        match s.as_ref() {
+            "IndexSizeError" => Some(DOMErrorName::IndexSizeError),
+            "HierarchyRequestError" => Some(DOMErrorName::HierarchyRequestError),
+            "WrongDocumentError" => Some(DOMErrorName::WrongDocumentError),
+            "InvalidCharacterError" => Some(DOMErrorName::InvalidCharacterError),
+            "NoModificationAllowedError" => Some(DOMErrorName::NoModificationAllowedError),
+            "NotFoundError" => Some(DOMErrorName::NotFoundError),
+            "NotSupportedError" => Some(DOMErrorName::NotSupportedError),
+            "InUseAttributeError" => Some(DOMErrorName::InUseAttributeError),
+            "InvalidStateError" => Some(DOMErrorName::InvalidStateError),
+            "SyntaxError" => Some(DOMErrorName::SyntaxError),
+            "InvalidModificationError" => Some(DOMErrorName::InvalidModificationError),
+            "NamespaceError" => Some(DOMErrorName::NamespaceError),
+            "InvalidAccessError" => Some(DOMErrorName::InvalidAccessError),
+            "SecurityError" => Some(DOMErrorName::SecurityError),
+            "NetworkError" => Some(DOMErrorName::NetworkError),
+            "AbortError" => Some(DOMErrorName::AbortError),
+            "TypeMismatchError" => Some(DOMErrorName::TypeMismatchError),
+            "QuotaExceededError" => Some(DOMErrorName::QuotaExceededError),
+            "TimeoutError" => Some(DOMErrorName::TimeoutError),
+            "InvalidNodeTypeError" => Some(DOMErrorName::InvalidNodeTypeError),
+            "DataCloneError" => Some(DOMErrorName::DataCloneError),
+            "NotReadableError" => Some(DOMErrorName::NotReadableError),
+            _ => None,
+        }
+    }
+}
+
 #[dom_struct]
 pub struct DOMException {
     reflector_: Reflector,
-    code: DOMErrorName,
+    message: DOMString,
+    name: DOMString,
 }
 
 impl DOMException {
-    fn new_inherited(code: DOMErrorName) -> DOMException {
-        DOMException {
-            reflector_: Reflector::new(),
-            code: code,
-        }
-    }
-
-    pub fn new(global: &GlobalScope, code: DOMErrorName) -> DomRoot<DOMException> {
-        reflect_dom_object(
-            Box::new(DOMException::new_inherited(code)),
-            global,
-            DOMExceptionBinding::Wrap,
-        )
-    }
-}
-
-impl DOMExceptionMethods for DOMException {
-    // https://heycam.github.io/webidl/#dfn-DOMException
-    fn Code(&self) -> u16 {
-        self.code as u16
-    }
-
-    // https://heycam.github.io/webidl/#idl-DOMException-error-names
-    fn Name(&self) -> DOMString {
-        DOMString::from(format!("{:?}", self.code))
-    }
-
-    // https://heycam.github.io/webidl/#error-names
-    fn Message(&self) -> DOMString {
-        let message = match self.code {
+    fn get_error_data_by_code(code: DOMErrorName) -> (DOMString, DOMString) {
+        let message = match &code {
             DOMErrorName::IndexSizeError => "The index is not in the allowed range.",
             DOMErrorName::HierarchyRequestError => {
                 "The operation would yield an incorrect node tree."
@@ -105,11 +109,64 @@ impl DOMExceptionMethods for DOMException {
             DOMErrorName::NotReadableError => "The I/O read operation failed.",
         };
 
-        DOMString::from(message)
+        (
+            DOMString::from(message),
+            DOMString::from(format!("{:?}", code)),
+        )
+    }
+
+    fn new_inherited(message_: DOMString, name_: DOMString) -> DOMException {
+        DOMException {
+            reflector_: Reflector::new(),
+            message: message_,
+            name: name_,
+        }
+    }
+
+    pub fn new(global: &GlobalScope, code: DOMErrorName) -> DomRoot<DOMException> {
+        let (message, name) = DOMException::get_error_data_by_code(code);
+
+        reflect_dom_object(
+            Box::new(DOMException::new_inherited(message, name)),
+            global,
+            DOMExceptionBinding::Wrap,
+        )
+    }
+
+    pub fn Constructor(
+        global: &GlobalScope,
+        message: DOMString,
+        name: DOMString,
+    ) -> Result<DomRoot<DOMException>, Error> {
+        Ok(reflect_dom_object(
+            Box::new(DOMException::new_inherited(message, name)),
+            global,
+            DOMExceptionBinding::Wrap,
+        ))
+    }
+}
+
+impl DOMExceptionMethods for DOMException {
+    // https://heycam.github.io/webidl/#dfn-DOMException
+    fn Code(&self) -> u16 {
+        match DOMErrorName::from(&self.name) {
+            Some(code) => code as u16,
+            None => 0 as u16,
+        }
+    }
+
+    // https://heycam.github.io/webidl/#idl-DOMException-error-names
+    fn Name(&self) -> DOMString {
+        self.name.clone()
+    }
+
+    // https://heycam.github.io/webidl/#error-names
+    fn Message(&self) -> DOMString {
+        self.message.clone()
     }
 
     // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-error.prototype.tostring
     fn Stringifier(&self) -> DOMString {
-        DOMString::from(format!("{}: {}", self.Name(), self.Message()))
+        DOMString::from(format!("{}: {}", self.name, self.message))
     }
 }
diff --git a/components/script/dom/webidls/DOMException.webidl b/components/script/dom/webidls/DOMException.webidl
index e2f95cbdda1..d9ec6f4dc84 100644
--- a/components/script/dom/webidls/DOMException.webidl
+++ b/components/script/dom/webidls/DOMException.webidl
@@ -7,7 +7,11 @@
  * https://heycam.github.io/webidl/#es-DOMException-constructor-object
  */
 
-[ExceptionClass, Exposed=(Window,Worker)]
+[
+  ExceptionClass,
+  Exposed=(Window,Worker),
+  Constructor(optional DOMString message="", optional DOMString name="Error")
+]
 interface DOMException {
   const unsigned short INDEX_SIZE_ERR = 1;
   const unsigned short DOMSTRING_SIZE_ERR = 2; // historical