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/* 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/. */
function StarGeneratorNext(val) {
// The IsSuspendedStarGenerator call below is not necessary for
// correctness. It's a performance optimization to check for the
// common case with a single call. It's also inlined in Baseline.
if (!IsSuspendedStarGenerator(this)) {
if (!IsObject(this) || !IsStarGeneratorObject(this))
return callFunction(CallStarGeneratorMethodIfWrapped, this, val, "StarGeneratorNext");
if (StarGeneratorObjectIsClosed(this))
return { value: undefined, done: true };
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
}
try {
return resumeGenerator(this, val, 'next');
} catch (e) {
if (!StarGeneratorObjectIsClosed(this))
GeneratorSetClosed(this);
throw e;
}
}
function StarGeneratorThrow(val) {
if (!IsSuspendedStarGenerator(this)) {
if (!IsObject(this) || !IsStarGeneratorObject(this))
return callFunction(CallStarGeneratorMethodIfWrapped, this, val, "StarGeneratorThrow");
if (StarGeneratorObjectIsClosed(this))
throw val;
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
}
try {
return resumeGenerator(this, val, 'throw');
} catch (e) {
if (!StarGeneratorObjectIsClosed(this))
GeneratorSetClosed(this);
throw e;
}
}
function StarGeneratorReturn(val) {
if (!IsSuspendedStarGenerator(this)) {
if (!IsObject(this) || !IsStarGeneratorObject(this))
return callFunction(CallStarGeneratorMethodIfWrapped, this, val, "StarGeneratorReturn");
if (StarGeneratorObjectIsClosed(this))
return { value: val, done: true };
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
}
try {
var rval = { value: val, done: true };
return resumeGenerator(this, rval, 'close');
} catch (e) {
if (!StarGeneratorObjectIsClosed(this))
GeneratorSetClosed(this);
throw e;
}
}
function LegacyGeneratorNext(val) {
if (!IsObject(this) || !IsLegacyGeneratorObject(this))
return callFunction(CallLegacyGeneratorMethodIfWrapped, this, val, "LegacyGeneratorNext");
if (LegacyGeneratorObjectIsClosed(this))
ThrowStopIteration();
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
try {
return resumeGenerator(this, val, 'next');
} catch(e) {
if (!LegacyGeneratorObjectIsClosed(this))
GeneratorSetClosed(this);
throw e;
}
}
_SetCanonicalName(LegacyGeneratorNext, "next");
function LegacyGeneratorThrow(val) {
if (!IsObject(this) || !IsLegacyGeneratorObject(this))
return callFunction(CallLegacyGeneratorMethodIfWrapped, this, val, "LegacyGeneratorThrow");
if (LegacyGeneratorObjectIsClosed(this))
throw val;
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
try {
return resumeGenerator(this, val, 'throw');
} catch(e) {
if (!LegacyGeneratorObjectIsClosed(this))
GeneratorSetClosed(this);
throw e;
}
}
// Called by js::CloseIterator.
function LegacyGeneratorCloseInternal() {
assert(IsObject(this), "Not an object: " + ToString(this));
assert(IsLegacyGeneratorObject(this), "Not a legacy generator object: " + ToString(this));
assert(!LegacyGeneratorObjectIsClosed(this), "Already closed: " + ToString(this));
if (GeneratorIsRunning(this))
ThrowTypeError(JSMSG_NESTING_GENERATOR);
resumeGenerator(this, undefined, 'close');
if (!LegacyGeneratorObjectIsClosed(this))
CloseClosingLegacyGeneratorObject(this);
}
function LegacyGeneratorClose() {
if (!IsObject(this) || !IsLegacyGeneratorObject(this))
return callFunction(CallLegacyGeneratorMethodIfWrapped, this, "LegacyGeneratorClose");
if (LegacyGeneratorObjectIsClosed(this))
return;
callFunction(LegacyGeneratorCloseInternal, this);
}
function InterpretGeneratorResume(gen, val, kind) {
// If we want to resume a generator in the interpreter, the script containing
// the resumeGenerator/JSOP_RESUME also has to run in the interpreter. The
// forceInterpreter() call below compiles to a bytecode op that prevents us
// from JITing this script.
forceInterpreter();
if (kind === "next")
return resumeGenerator(gen, val, "next");
if (kind === "throw")
return resumeGenerator(gen, val, "throw");
assert(kind === "close", "Invalid resume kind");
return resumeGenerator(gen, val, "close");
}
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