Throw TypeErrors instead of uncatcheable exceptions in CodegenRust.py (fixes #347, #3065).

2 files changed, 50 insertions, 8 deletions

diff --git a/src/components/script/dom/bindings/codegen/CodegenRust.py b/src/components/script/dom/bindings/codegen/CodegenRust.py
index 28b8809380d..1666589940e 100644
--- a/src/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/src/components/script/dom/bindings/codegen/CodegenRust.py
@@ -377,7 +377,8 @@ class CGMethodCall(CGThing):
         overloadCGThings.append(
             CGSwitch("argcount",
                      argCountCases,
-                     CGGeneric("return 0; //XXXjdm throw stuff\n//return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, %s);\n" % methodName)))
+                     CGGeneric("throw_type_error(cx, \"Not enough arguments to %s.\");\n"
+                               "return 0;\n" % methodName)))
         #XXXjdm Avoid unreachable statement warnings
         #overloadCGThings.append(
         #    CGGeneric('fail!("We have an always-returning default case");\n'
@@ -520,7 +521,7 @@ def getJSToNativeConversionTemplate(type, descriptorProvider, failureCode=None,
         return CGWrapper(
             CGGeneric(
                 failureCode or
-                ('//XXXjdm ThrowErrorMessage(cx, MSG_DOES_NOT_IMPLEMENT_INTERFACE, "%s", "%s")\n;'
+                ('throw_type_error(cx, \"%s does not implement interface %s.\");\n'
                  '%s' % (firstCap(sourceDescription), typeName,
                          exceptionCode))),
             post="\n")
@@ -528,7 +529,7 @@ def getJSToNativeConversionTemplate(type, descriptorProvider, failureCode=None,
         return CGWrapper(
             CGGeneric(
                 failureCode or
-                ('//XXXjdm ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "%s");\n'
+                ('throw_type_error(cx, \"%s is not callable.\");\n'
                  '%s' % (firstCap(sourceDescription), exceptionCode))),
             post="\n")
 
@@ -2656,7 +2657,7 @@ class CGStaticSetter(CGAbstractStaticBindingMethod):
         checkForArg = CGGeneric(
             "let argv = JS_ARGV(cx, vp);\n"
             "if (argc == 0) {\n"
-            "  // XXXjdmreturn ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, \"%s setter\");\n"
+            "  throw_type_error(cx, \"Not enough arguments to %s setter.\");\n"
             "  return 0;\n"
             "}\n" % self.attr.identifier.name)
         call = CGSetterCall([], self.attr.type, nativeName, self.descriptor,
@@ -4311,7 +4312,7 @@ class CGDictionary(CGThing):
             "    } else if val.is_object() {\n"
             "        val.to_object()\n"
             "    } else {\n"
-            "        //XXXjdm throw properly here\n"
+            "        throw_type_error(cx, \"Value not an object.\");\n"
             "        return Err(());\n"
             "    };\n"
             "    Ok(${selfName} {\n"
diff --git a/src/test/wpt/metadata/XMLHttpRequest/interfaces.html.ini b/src/test/wpt/metadata/XMLHttpRequest/interfaces.html.ini
index c79bd41c3cd..de4343bec98 100644
--- a/src/test/wpt/metadata/XMLHttpRequest/interfaces.html.ini
+++ b/src/test/wpt/metadata/XMLHttpRequest/interfaces.html.ini
@@ -1,6 +1,5 @@
 [interfaces.html]
   type: testharness
-  expected: TIMEOUT
   [XMLHttpRequest interface: operation open(ByteString,DOMString)]
     expected: FAIL
 
@@ -13,6 +12,48 @@
   [XMLHttpRequest interface: operation overrideMimeType(DOMString)]
     expected: FAIL
 
-  [XMLHttpRequest interface: calling open(ByteString,DOMString) on new XMLHttpRequest() with too few arguments must throw TypeError]
-    expected: TIMEOUT
+  [XMLHttpRequest interface: calling open(ByteString,DOMString,boolean,DOMString,DOMString) on new XMLHttpRequest() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [XMLHttpRequest interface: new XMLHttpRequest() must inherit property "statusText" with the proper type (16)]
+    expected: FAIL
+
+  [XMLHttpRequest interface: new XMLHttpRequest() must inherit property "overrideMimeType" with the proper type (19)]
+    expected: FAIL
+
+  [XMLHttpRequest interface: calling overrideMimeType(DOMString) on new XMLHttpRequest() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [FormData interface: existence and properties of interface object]
+    expected: FAIL
+
+  [FormData interface object length]
+    expected: FAIL
+
+  [FormData interface: operation append(DOMString,Blob,DOMString)]
+    expected: FAIL
+
+  [FormData interface: operation append(DOMString,DOMString)]
+    expected: FAIL
+
+  [FormData interface: operation getAll(DOMString)]
+    expected: FAIL
+
+  [FormData interface: operation set(DOMString,Blob,DOMString)]
+    expected: FAIL
+
+  [FormData interface: operation set(DOMString,DOMString)]
+    expected: FAIL
+
+  [FormData interface: new FormData() must inherit property "getAll" with the proper type (4)]
+    expected: FAIL
+
+  [FormData interface: calling getAll(DOMString) on new FormData() with too few arguments must throw TypeError]
+    expected: FAIL
+
+  [FormData interface: new FormData(form) must inherit property "getAll" with the proper type (4)]
+    expected: FAIL
+
+  [FormData interface: calling getAll(DOMString) on new FormData(form) with too few arguments must throw TypeError]
+    expected: FAIL