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-rw-r--r--js/src/vm/GeneratorObject.h53
1 files changed, 27 insertions, 26 deletions
diff --git a/js/src/vm/GeneratorObject.h b/js/src/vm/GeneratorObject.h
index ca1452b34..beb15f790 100644
--- a/js/src/vm/GeneratorObject.h
+++ b/js/src/vm/GeneratorObject.h
@@ -21,15 +21,15 @@ class GeneratorObject : public NativeObject
public:
// Magic values stored in the yield index slot when the generator is
// running or closing. See the yield index comment below.
- static const int32_t YIELD_INDEX_RUNNING = INT32_MAX;
- static const int32_t YIELD_INDEX_CLOSING = INT32_MAX - 1;
+ static const int32_t YIELD_AND_AWAIT_INDEX_RUNNING = INT32_MAX;
+ static const int32_t YIELD_AND_AWAIT_INDEX_CLOSING = INT32_MAX - 1;
enum {
CALLEE_SLOT = 0,
ENV_CHAIN_SLOT,
ARGS_OBJ_SLOT,
EXPRESSION_STACK_SLOT,
- YIELD_INDEX_SLOT,
+ YIELD_AND_AWAIT_INDEX_SLOT,
NEWTARGET_SLOT,
RESERVED_SLOTS
};
@@ -124,47 +124,48 @@ class GeneratorObject : public NativeObject
// The yield index slot is abused for a few purposes. It's undefined if
// it hasn't been set yet (before the initial yield), and null if the
// generator is closed. If the generator is running, the yield index is
- // YIELD_INDEX_RUNNING. If the generator is in that bizarre "closing"
- // state, the yield index is YIELD_INDEX_CLOSING.
+ // YIELD_AND_AWAIT_INDEX_RUNNING. If the generator is in that bizarre
+ // "closing" state, the yield index is YIELD_AND_AWAIT_INDEX_CLOSING.
//
// If the generator is suspended, it's the yield index (stored as
- // JSOP_INITIALYIELD/JSOP_YIELD operand) of the yield instruction that
- // suspended the generator. The yield index can be mapped to the bytecode
- // offset (interpreter) or to the native code offset (JIT).
+ // JSOP_INITIALYIELD/JSOP_YIELD/JSOP_AWAIT operand) of the yield
+ // instruction that suspended the generator. The yield index can be mapped
+ // to the bytecode offset (interpreter) or to the native code offset (JIT).
bool isRunning() const {
MOZ_ASSERT(!isClosed());
- return getFixedSlot(YIELD_INDEX_SLOT).toInt32() == YIELD_INDEX_RUNNING;
+ return getFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT).toInt32() == YIELD_AND_AWAIT_INDEX_RUNNING;
}
bool isClosing() const {
- return getFixedSlot(YIELD_INDEX_SLOT).toInt32() == YIELD_INDEX_CLOSING;
+ return getFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT).toInt32() == YIELD_AND_AWAIT_INDEX_CLOSING;
}
bool isSuspended() const {
// Note: also update Baseline's IsSuspendedStarGenerator code if this
// changes.
MOZ_ASSERT(!isClosed());
- static_assert(YIELD_INDEX_CLOSING < YIELD_INDEX_RUNNING,
- "test below should return false for YIELD_INDEX_RUNNING");
- return getFixedSlot(YIELD_INDEX_SLOT).toInt32() < YIELD_INDEX_CLOSING;
+ static_assert(YIELD_AND_AWAIT_INDEX_CLOSING < YIELD_AND_AWAIT_INDEX_RUNNING,
+ "test below should return false for YIELD_AND_AWAIT_INDEX_RUNNING");
+ return getFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT).toInt32() < YIELD_AND_AWAIT_INDEX_CLOSING;
}
void setRunning() {
MOZ_ASSERT(isSuspended());
- setFixedSlot(YIELD_INDEX_SLOT, Int32Value(YIELD_INDEX_RUNNING));
+ setFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT, Int32Value(YIELD_AND_AWAIT_INDEX_RUNNING));
}
void setClosing() {
MOZ_ASSERT(isSuspended());
- setFixedSlot(YIELD_INDEX_SLOT, Int32Value(YIELD_INDEX_CLOSING));
- }
- void setYieldIndex(uint32_t yieldIndex) {
- MOZ_ASSERT_IF(yieldIndex == 0, getFixedSlot(YIELD_INDEX_SLOT).isUndefined());
- MOZ_ASSERT_IF(yieldIndex != 0, isRunning() || isClosing());
- MOZ_ASSERT(yieldIndex < uint32_t(YIELD_INDEX_CLOSING));
- setFixedSlot(YIELD_INDEX_SLOT, Int32Value(yieldIndex));
+ setFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT, Int32Value(YIELD_AND_AWAIT_INDEX_CLOSING));
+ }
+ void setYieldAndAwaitIndex(uint32_t yieldAndAwaitIndex) {
+ MOZ_ASSERT_IF(yieldAndAwaitIndex == 0,
+ getFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT).isUndefined());
+ MOZ_ASSERT_IF(yieldAndAwaitIndex != 0, isRunning() || isClosing());
+ MOZ_ASSERT(yieldAndAwaitIndex < uint32_t(YIELD_AND_AWAIT_INDEX_CLOSING));
+ setFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT, Int32Value(yieldAndAwaitIndex));
MOZ_ASSERT(isSuspended());
}
- uint32_t yieldIndex() const {
+ uint32_t yieldAndAwaitIndex() const {
MOZ_ASSERT(isSuspended());
- return getFixedSlot(YIELD_INDEX_SLOT).toInt32();
+ return getFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT).toInt32();
}
bool isClosed() const {
return getFixedSlot(CALLEE_SLOT).isNull();
@@ -174,7 +175,7 @@ class GeneratorObject : public NativeObject
setFixedSlot(ENV_CHAIN_SLOT, NullValue());
setFixedSlot(ARGS_OBJ_SLOT, NullValue());
setFixedSlot(EXPRESSION_STACK_SLOT, NullValue());
- setFixedSlot(YIELD_INDEX_SLOT, NullValue());
+ setFixedSlot(YIELD_AND_AWAIT_INDEX_SLOT, NullValue());
setFixedSlot(NEWTARGET_SLOT, NullValue());
}
@@ -187,8 +188,8 @@ class GeneratorObject : public NativeObject
static size_t offsetOfArgsObjSlot() {
return getFixedSlotOffset(ARGS_OBJ_SLOT);
}
- static size_t offsetOfYieldIndexSlot() {
- return getFixedSlotOffset(YIELD_INDEX_SLOT);
+ static size_t offsetOfYieldAndAwaitIndexSlot() {
+ return getFixedSlotOffset(YIELD_AND_AWAIT_INDEX_SLOT);
}
static size_t offsetOfExpressionStackSlot() {
return getFixedSlotOffset(EXPRESSION_STACK_SLOT);