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/* -*- 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/. */
/* JavaScript API. */
#ifndef js_ContextOptions_h
#define js_ContextOptions_h
#include "jstypes.h" // JS_PUBLIC_API
#include "js/CompileOptions.h" // PrefableCompileOptions
#include "js/WasmFeatures.h"
struct JS_PUBLIC_API JSContext;
namespace JS {
class JS_PUBLIC_API ContextOptions {
public:
// clang-format off
ContextOptions()
: wasm_(true),
wasmForTrustedPrinciples_(true),
wasmBaseline_(true),
wasmIon_(true),
testWasmAwaitTier2_(false),
disableIon_(false),
disableEvalSecurityChecks_(false),
disableFilenameSecurityChecks_(false),
asyncStack_(true),
asyncStackCaptureDebuggeeOnly_(false),
throwOnDebuggeeWouldRun_(true),
dumpStackOnDebuggeeWouldRun_(false),
fuzzing_(false) {
}
// clang-format on
bool asmJS() const {
return compileOptions_.asmJSOption() == AsmJSOption::Enabled;
}
AsmJSOption asmJSOption() const { return compileOptions_.asmJSOption(); }
ContextOptions& setAsmJS(bool flag) {
compileOptions_.setAsmJS(flag);
return *this;
}
ContextOptions& setAsmJSOption(AsmJSOption option) {
compileOptions_.setAsmJSOption(option);
return *this;
}
bool wasm() const { return wasm_; }
ContextOptions& setWasm(bool flag) {
wasm_ = flag;
return *this;
}
ContextOptions& toggleWasm() {
wasm_ = !wasm_;
return *this;
}
bool wasmForTrustedPrinciples() const { return wasmForTrustedPrinciples_; }
ContextOptions& setWasmForTrustedPrinciples(bool flag) {
wasmForTrustedPrinciples_ = flag;
return *this;
}
bool wasmBaseline() const { return wasmBaseline_; }
ContextOptions& setWasmBaseline(bool flag) {
wasmBaseline_ = flag;
return *this;
}
bool wasmIon() const { return wasmIon_; }
ContextOptions& setWasmIon(bool flag) {
wasmIon_ = flag;
return *this;
}
bool testWasmAwaitTier2() const { return testWasmAwaitTier2_; }
ContextOptions& setTestWasmAwaitTier2(bool flag) {
testWasmAwaitTier2_ = flag;
return *this;
}
bool throwOnAsmJSValidationFailure() const {
return compileOptions_.throwOnAsmJSValidationFailure();
}
ContextOptions& setThrowOnAsmJSValidationFailure(bool flag) {
compileOptions_.setThrowOnAsmJSValidationFailure(flag);
return *this;
}
ContextOptions& toggleThrowOnAsmJSValidationFailure() {
compileOptions_.toggleThrowOnAsmJSValidationFailure();
return *this;
}
// Override to allow disabling Ion for this context irrespective of the
// process-wide Ion-enabled setting. This must be set right after creating
// the context.
bool disableIon() const { return disableIon_; }
ContextOptions& setDisableIon() {
disableIon_ = true;
return *this;
}
// These next two checks are needed for PAC Scripts: we cannot enforce
// restrictions on them because they are user provided.
// Override to allow disabling the eval restriction security checks for
// this context.
bool disableEvalSecurityChecks() const { return disableEvalSecurityChecks_; }
ContextOptions& setDisableEvalSecurityChecks() {
disableEvalSecurityChecks_ = true;
return *this;
}
// Override to allow disabling the filename security checks (checks that
// ensure the script doesn't come from the web) for this context. There is a
// lower-level flag for this same check in CompileOptions which will be set by
// this flag; this is needed here to propagate the flag down into eval
// contexts
bool disableFilenameSecurityChecks() const {
return disableFilenameSecurityChecks_;
}
ContextOptions& setDisableFilenameSecurityChecks() {
disableFilenameSecurityChecks_ = true;
return *this;
}
bool asyncStack() const { return asyncStack_; }
ContextOptions& setAsyncStack(bool flag) {
asyncStack_ = flag;
return *this;
}
bool asyncStackCaptureDebuggeeOnly() const {
return asyncStackCaptureDebuggeeOnly_;
}
ContextOptions& setAsyncStackCaptureDebuggeeOnly(bool flag) {
asyncStackCaptureDebuggeeOnly_ = flag;
return *this;
}
// Enable/disable support for parsing '//(#@) source(Mapping)?URL=' pragmas.
bool sourcePragmas() const { return compileOptions_.sourcePragmas(); }
ContextOptions& setSourcePragmas(bool flag) {
compileOptions_.setSourcePragmas(flag);
return *this;
}
bool throwOnDebuggeeWouldRun() const { return throwOnDebuggeeWouldRun_; }
ContextOptions& setThrowOnDebuggeeWouldRun(bool flag) {
throwOnDebuggeeWouldRun_ = flag;
return *this;
}
bool dumpStackOnDebuggeeWouldRun() const {
return dumpStackOnDebuggeeWouldRun_;
}
ContextOptions& setDumpStackOnDebuggeeWouldRun(bool flag) {
dumpStackOnDebuggeeWouldRun_ = flag;
return *this;
}
bool fuzzing() const { return fuzzing_; }
// Defined out-of-line because it depends on a compile-time option
ContextOptions& setFuzzing(bool flag);
void disableOptionsForSafeMode() {
setAsmJSOption(AsmJSOption::DisabledByAsmJSPref);
setWasmBaseline(false);
}
PrefableCompileOptions& compileOptions() { return compileOptions_; }
const PrefableCompileOptions& compileOptions() const {
return compileOptions_;
}
private:
// WASM options.
bool wasm_ : 1;
bool wasmForTrustedPrinciples_ : 1;
bool wasmBaseline_ : 1;
bool wasmIon_ : 1;
bool testWasmAwaitTier2_ : 1;
// JIT options.
bool disableIon_ : 1;
// Runtime options.
bool disableEvalSecurityChecks_ : 1;
bool disableFilenameSecurityChecks_ : 1;
bool asyncStack_ : 1;
bool asyncStackCaptureDebuggeeOnly_ : 1;
bool throwOnDebuggeeWouldRun_ : 1;
bool dumpStackOnDebuggeeWouldRun_ : 1;
bool fuzzing_ : 1;
// Compile options.
PrefableCompileOptions compileOptions_;
};
JS_PUBLIC_API ContextOptions& ContextOptionsRef(JSContext* cx);
} // namespace JS
#endif // js_ContextOptions_h
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