1 files changed, 256 insertions, 0 deletions
diff --git a/js/src/builtin/TestingUtility.cpp b/js/src/builtin/TestingUtility.cpp
new file mode 100644
index 0000000000..2f54d2fdbf
--- /dev/null
+++ b/js/src/builtin/TestingUtility.cpp
@@ -0,0 +1,256 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "builtin/TestingUtility.h"
+
+#include <stdint.h>  // uint32_t
+
+#include "jsapi.h"                 // JS_NewPlainObject, JS_WrapValue
+#include "js/CharacterEncoding.h"  // JS_EncodeStringToLatin1
+#include "js/CompileOptions.h"     // JS::CompileOptions
+#include "js/Conversions.h"  // JS::ToBoolean, JS::ToString, JS::ToUint32, JS::ToInt32
+#include "js/PropertyAndElement.h"  // JS_GetProperty, JS_DefineProperty
+#include "js/PropertyDescriptor.h"  // JSPROP_ENUMERATE
+#include "js/RootingAPI.h"          // JS::Rooted, JS::Handle
+#include "js/Utility.h"             // JS::UniqueChars
+#include "js/Value.h"               // JS::Value, JS::StringValue
+#include "vm/JSScript.h"
+
+bool js::ParseCompileOptions(JSContext* cx, JS::CompileOptions& options,
+                             JS::Handle<JSObject*> opts,
+                             JS::UniqueChars* fileNameBytes) {
+  JS::Rooted<JS::Value> v(cx);
+  JS::Rooted<JSString*> s(cx);
+
+  if (!JS_GetProperty(cx, opts, "isRunOnce", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    options.setIsRunOnce(JS::ToBoolean(v));
+  }
+
+  if (!JS_GetProperty(cx, opts, "noScriptRval", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    options.setNoScriptRval(JS::ToBoolean(v));
+  }
+
+  if (!JS_GetProperty(cx, opts, "fileName", &v)) {
+    return false;
+  }
+  if (v.isNull()) {
+    options.setFile(nullptr);
+  } else if (!v.isUndefined()) {
+    s = JS::ToString(cx, v);
+    if (!s) {
+      return false;
+    }
+    if (fileNameBytes) {
+      *fileNameBytes = JS_EncodeStringToLatin1(cx, s);
+      if (!*fileNameBytes) {
+        return false;
+      }
+      options.setFile(fileNameBytes->get());
+    }
+  }
+
+  if (!JS_GetProperty(cx, opts, "skipFileNameValidation", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    options.setSkipFilenameValidation(JS::ToBoolean(v));
+  }
+
+  if (!JS_GetProperty(cx, opts, "lineNumber", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    uint32_t u;
+    if (!JS::ToUint32(cx, v, &u)) {
+      return false;
+    }
+    options.setLine(u);
+  }
+
+  if (!JS_GetProperty(cx, opts, "columnNumber", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    int32_t c;
+    if (!JS::ToInt32(cx, v, &c)) {
+      return false;
+    }
+    options.setColumn(c);
+  }
+
+  if (!JS_GetProperty(cx, opts, "sourceIsLazy", &v)) {
+    return false;
+  }
+  if (v.isBoolean()) {
+    options.setSourceIsLazy(v.toBoolean());
+  }
+
+  if (!JS_GetProperty(cx, opts, "forceFullParse", &v)) {
+    return false;
+  }
+  bool forceFullParseIsSet = !v.isUndefined();
+  if (v.isBoolean() && v.toBoolean()) {
+    options.setForceFullParse();
+  }
+
+  if (!JS_GetProperty(cx, opts, "eagerDelazificationStrategy", &v)) {
+    return false;
+  }
+  if (forceFullParseIsSet && !v.isUndefined()) {
+    JS_ReportErrorASCII(
+        cx, "forceFullParse and eagerDelazificationStrategy are both set.");
+    return false;
+  }
+  if (v.isString()) {
+    s = JS::ToString(cx, v);
+    if (!s) {
+      return false;
+    }
+
+    JSLinearString* str = JS_EnsureLinearString(cx, s);
+    if (!str) {
+      return false;
+    }
+
+    bool found = false;
+    JS::DelazificationOption strategy = JS::DelazificationOption::OnDemandOnly;
+
+#define MATCH_AND_SET_STRATEGY_(NAME)                       \
+  if (!found && JS_LinearStringEqualsLiteral(str, #NAME)) { \
+    strategy = JS::DelazificationOption::NAME;              \
+    found = true;                                           \
+  }
+
+    FOREACH_DELAZIFICATION_STRATEGY(MATCH_AND_SET_STRATEGY_);
+#undef MATCH_AND_SET_STRATEGY_
+#undef FOR_STRATEGY_NAMES
+
+    if (!found) {
+      JS_ReportErrorASCII(cx,
+                          "eagerDelazificationStrategy does not match any "
+                          "DelazificationOption.");
+      return false;
+    }
+    options.setEagerDelazificationStrategy(strategy);
+  }
+
+  return true;
+}
+
+bool js::ParseSourceOptions(JSContext* cx, JS::Handle<JSObject*> opts,
+                            JS::MutableHandle<JSString*> displayURL,
+                            JS::MutableHandle<JSString*> sourceMapURL) {
+  JS::Rooted<JS::Value> v(cx);
+
+  if (!JS_GetProperty(cx, opts, "displayURL", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    displayURL.set(ToString(cx, v));
+    if (!displayURL) {
+      return false;
+    }
+  }
+
+  if (!JS_GetProperty(cx, opts, "sourceMapURL", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    sourceMapURL.set(ToString(cx, v));
+    if (!sourceMapURL) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool js::SetSourceOptions(JSContext* cx, FrontendContext* fc,
+                          ScriptSource* source,
+                          JS::Handle<JSString*> displayURL,
+                          JS::Handle<JSString*> sourceMapURL) {
+  if (displayURL && !source->hasDisplayURL()) {
+    JS::UniqueTwoByteChars chars = JS_CopyStringCharsZ(cx, displayURL);
+    if (!chars) {
+      return false;
+    }
+    if (!source->setDisplayURL(cx, fc, std::move(chars))) {
+      return false;
+    }
+  }
+  if (sourceMapURL && !source->hasSourceMapURL()) {
+    JS::UniqueTwoByteChars chars = JS_CopyStringCharsZ(cx, sourceMapURL);
+    if (!chars) {
+      return false;
+    }
+    if (!source->setSourceMapURL(fc, std::move(chars))) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+JSObject* js::CreateScriptPrivate(JSContext* cx,
+                                  JS::Handle<JSString*> path /* = nullptr */) {
+  JS::Rooted<JSObject*> info(cx, JS_NewPlainObject(cx));
+  if (!info) {
+    return nullptr;
+  }
+
+  if (path) {
+    JS::Rooted<JS::Value> pathValue(cx, JS::StringValue(path));
+    if (!JS_DefineProperty(cx, info, "path", pathValue, JSPROP_ENUMERATE)) {
+      return nullptr;
+    }
+  }
+
+  return info;
+}
+
+bool js::ParseDebugMetadata(JSContext* cx, JS::Handle<JSObject*> opts,
+                            JS::MutableHandle<JS::Value> privateValue,
+                            JS::MutableHandle<JSString*> elementAttributeName) {
+  JS::Rooted<JS::Value> v(cx);
+  JS::Rooted<JSString*> s(cx);
+
+  if (!JS_GetProperty(cx, opts, "element", &v)) {
+    return false;
+  }
+  if (v.isObject()) {
+    JS::Rooted<JSObject*> infoObject(cx, CreateScriptPrivate(cx));
+    if (!infoObject) {
+      return false;
+    }
+    JS::Rooted<JS::Value> elementValue(cx, v);
+    if (!JS_WrapValue(cx, &elementValue)) {
+      return false;
+    }
+    if (!JS_DefineProperty(cx, infoObject, "element", elementValue, 0)) {
+      return false;
+    }
+    privateValue.set(JS::ObjectValue(*infoObject));
+  }
+
+  if (!JS_GetProperty(cx, opts, "elementAttributeName", &v)) {
+    return false;
+  }
+  if (!v.isUndefined()) {
+    s = ToString(cx, v);
+    if (!s) {
+      return false;
+    }
+    elementAttributeName.set(s);
+  }
+
+  return true;
+}