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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/dom/ModulatorImpl.h" | 5 #include "core/dom/ModulatorImpl.h" |
6 | 6 |
7 #include "core/dom/Document.h" | 7 #include "core/dom/Document.h" |
8 #include "core/dom/ExecutionContext.h" | 8 #include "core/dom/ExecutionContext.h" |
9 #include "core/dom/ModuleMap.h" | 9 #include "core/dom/ModuleMap.h" |
10 #include "core/dom/ModuleScript.h" | 10 #include "core/dom/ModuleScript.h" |
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121 ScriptState::Scope scope(script_state_.Get()); | 121 ScriptState::Scope scope(script_state_.Get()); |
122 return ScriptModule::Compile(script_state_->GetIsolate(), script_source, | 122 return ScriptModule::Compile(script_state_->GetIsolate(), script_source, |
123 url_str, access_control_status); | 123 url_str, access_control_status); |
124 } | 124 } |
125 | 125 |
126 ScriptValue ModulatorImpl::InstantiateModule(ScriptModule script_module) { | 126 ScriptValue ModulatorImpl::InstantiateModule(ScriptModule script_module) { |
127 ScriptState::Scope scope(script_state_.Get()); | 127 ScriptState::Scope scope(script_state_.Get()); |
128 return script_module.Instantiate(script_state_.Get()); | 128 return script_module.Instantiate(script_state_.Get()); |
129 } | 129 } |
130 | 130 |
| 131 ScriptValue ModulatorImpl::GetInstantiationError( |
| 132 const ModuleScript* module_script) { |
| 133 ScriptState::Scope scope(script_state_.Get()); |
| 134 return ScriptValue( |
| 135 script_state_.Get(), |
| 136 module_script->CreateInstantiationError(script_state_->GetIsolate())); |
| 137 } |
| 138 |
131 Vector<String> ModulatorImpl::ModuleRequestsFromScriptModule( | 139 Vector<String> ModulatorImpl::ModuleRequestsFromScriptModule( |
132 ScriptModule script_module) { | 140 ScriptModule script_module) { |
133 ScriptState::Scope scope(script_state_.Get()); | 141 ScriptState::Scope scope(script_state_.Get()); |
134 return script_module.ModuleRequests(script_state_.Get()); | 142 return script_module.ModuleRequests(script_state_.Get()); |
135 } | 143 } |
136 | 144 |
137 inline ExecutionContext* ModulatorImpl::GetExecutionContext() const { | 145 inline ExecutionContext* ModulatorImpl::GetExecutionContext() const { |
138 return ExecutionContext::From(script_state_.Get()); | 146 return ExecutionContext::From(script_state_.Get()); |
139 } | 147 } |
140 | 148 |
| 149 void ModulatorImpl::ExecuteModule(const ModuleScript* module_script) { |
| 150 // https://html.spec.whatwg.org/#run-a-module-script |
| 151 |
| 152 // 1. "Let settings be the settings object of s." |
| 153 // The settings object is |this|. |
| 154 |
| 155 // 2. "Check if we can run script with settings. |
| 156 // If this returns "do not run" then abort these steps." |
| 157 if (!GetExecutionContext()->CanExecuteScripts(kAboutToExecuteScript)) |
| 158 return; |
| 159 |
| 160 ScriptState::Scope scope(script_state_.Get()); |
| 161 |
| 162 // 3. "If s's instantiation state is "errored", then report the exception |
| 163 // given by s's instantiation error for s and abort these steps." |
| 164 ModuleInstantiationState instantiationState = |
| 165 module_script->InstantiationState(); |
| 166 if (instantiationState == ModuleInstantiationState::kErrored) { |
| 167 v8::Isolate* isolate = script_state_->GetIsolate(); |
| 168 ScriptModule::ReportException( |
| 169 script_state_.Get(), module_script->CreateInstantiationError(isolate), |
| 170 module_script->BaseURL().GetString()); |
| 171 return; |
| 172 } |
| 173 |
| 174 // 4. "Assert: s's instantiation state is "instantiated" (and thus its |
| 175 // module record is not null)." |
| 176 CHECK_EQ(instantiationState, ModuleInstantiationState::kInstantiated); |
| 177 |
| 178 // 5. "Let record be s's module record." |
| 179 const ScriptModule& record = module_script->Record(); |
| 180 CHECK(!record.IsNull()); |
| 181 |
| 182 // 6.--9.? |
| 183 record.Evaluate(script_state_.Get()); |
| 184 } |
| 185 |
141 DEFINE_TRACE(ModulatorImpl) { | 186 DEFINE_TRACE(ModulatorImpl) { |
142 Modulator::Trace(visitor); | 187 Modulator::Trace(visitor); |
143 visitor->Trace(fetcher_); | 188 visitor->Trace(fetcher_); |
144 visitor->Trace(map_); | 189 visitor->Trace(map_); |
145 visitor->Trace(loader_registry_); | 190 visitor->Trace(loader_registry_); |
146 visitor->Trace(tree_linker_registry_); | 191 visitor->Trace(tree_linker_registry_); |
147 visitor->Trace(script_module_resolver_); | 192 visitor->Trace(script_module_resolver_); |
148 } | 193 } |
149 | 194 |
150 DEFINE_TRACE_WRAPPERS(ModulatorImpl) { | 195 DEFINE_TRACE_WRAPPERS(ModulatorImpl) { |
151 visitor->TraceWrappers(map_); | 196 visitor->TraceWrappers(map_); |
152 } | 197 } |
153 | 198 |
154 } // namespace blink | 199 } // namespace blink |
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