c805d5e317
The patch changes CallPrinter's AST traversal to continue even after
the first positive match for an AST node. This helps us check for the
subsequent GetIterator AST node in case of destructuring.
We can not differentiate between the function call failing and the
GetIterator failing based on source position info. This would involve
runtime checks costing performance.
Instead of providing an incorrect error, we provide both the
possiblities to user and allow them to disambiguate.
Previously,
d8> function f() { return 5; }
undefined
d8> var [a] = f();
(d8):1: TypeError: f is not a function
var [a] = f();
^
TypeError: f is not a function
at (d8):1:11
Now,
d8> function f() { return 5; }
undefined
d8> var [a] = f();
(d8):1: TypeError: f is not a function or its return value is not iterable
var [a] = f();
^
TypeError: f is not a function or its return value is not iterable
at (d8):1:11
Bug: v8:6616, v8:6513
Change-Id: I3d6427f10cae54951b0ad0e5ddcbe802bb7191c1
Reviewed-on: https://chromium-review.googlesource.com/594894
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47025}
1512 lines
55 KiB
Plaintext
1512 lines
55 KiB
Plaintext
#
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# Autogenerated by generate-bytecode-expectations.
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#
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---
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wrap: no
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test function name: f
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---
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snippet: "
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function f(arr) {
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for (let x of arr) { let y = x; }
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}
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f([1, 2, 3]);
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"
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frame size: 16
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parameter count: 2
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bytecode array length: 263
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bytecodes: [
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/* 10 E> */ B(StackCheck),
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B(LdaTheHole),
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B(Star), R(2),
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B(LdaZero),
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B(Star), R(6),
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B(Mov), R(context), R(12),
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B(Mov), R(context), R(13),
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/* 34 S> */ B(LdaNamedProperty), R(arg0), U8(0), U8(0),
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B(Star), R(15),
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B(CallProperty0), R(15), R(arg0), U8(2),
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B(Mov), R(arg0), R(14),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
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B(Star), R(4),
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/* 29 S> */ B(LdaNamedProperty), R(4), U8(1), U8(6),
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B(Star), R(14),
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B(CallProperty0), R(14), R(4), U8(4),
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B(Star), R(5),
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/* 29 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(5), U8(1),
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B(ToBooleanLogicalNot),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(5), U8(1),
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B(LdaNamedProperty), R(5), U8(2), U8(8),
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B(JumpIfToBooleanTrue), U8(28),
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B(LdaNamedProperty), R(5), U8(3), U8(10),
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B(Star), R(7),
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B(LdaSmi), I8(2),
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B(Star), R(6),
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B(Mov), R(7), R(3),
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/* 20 E> */ B(StackCheck),
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B(Mov), R(3), R(1),
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/* 49 S> */ B(Mov), R(1), R(0),
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B(LdaZero),
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B(Star), R(6),
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B(JumpLoop), U8(53), I8(0),
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B(Jump), U8(36),
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B(Star), R(14),
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B(Ldar), R(closure),
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/* 49 E> */ B(CreateCatchContext), R(14), U8(4), U8(5),
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B(PushContext), R(14),
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B(Star), R(13),
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B(LdaSmi), I8(2),
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B(TestEqualStrict), R(6), U8(12),
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B(JumpIfFalse), U8(6),
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B(LdaSmi), I8(1),
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B(Star), R(6),
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B(LdaImmutableCurrentContextSlot), U8(4),
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B(Star), R(15),
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B(CallRuntime), U16(Runtime::kReThrow), R(15), U8(1),
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B(PopContext), R(14),
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B(LdaSmi), I8(-1),
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B(Star), R(10),
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B(Jump), U8(7),
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B(Star), R(11),
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B(LdaZero),
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B(Star), R(10),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Star), R(12),
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B(LdaZero),
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B(TestEqualStrict), R(6), U8(13),
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B(JumpIfTrue), U8(104),
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B(LdaNamedProperty), R(4), U8(6), U8(14),
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B(Star), R(8),
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B(TestUndetectable),
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B(JumpIfFalse), U8(4),
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B(Jump), U8(93),
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B(LdaSmi), I8(1),
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B(TestEqualStrict), R(6), U8(17),
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B(JumpIfFalse), U8(61),
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B(Ldar), R(8),
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B(TestTypeOf), U8(5),
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B(JumpIfFalse), U8(4),
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B(Jump), U8(18),
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B(Wide), B(LdaSmi), I16(134),
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B(Star), R(13),
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B(LdaConstant), U8(7),
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B(Star), R(14),
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B(CallRuntime), U16(Runtime::kNewTypeError), R(13), U8(2),
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B(Throw),
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B(Mov), R(context), R(13),
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B(Mov), R(8), R(14),
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B(Mov), R(4), R(15),
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B(InvokeIntrinsic), U8(Runtime::k_Call), R(14), U8(2),
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B(Jump), U8(20),
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B(Star), R(14),
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B(Ldar), R(closure),
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B(CreateCatchContext), R(14), U8(4), U8(8),
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B(Star), R(13),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(13),
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B(PushContext), R(14),
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B(PopContext), R(14),
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B(Jump), U8(27),
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B(Mov), R(8), R(13),
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B(Mov), R(4), R(14),
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B(InvokeIntrinsic), U8(Runtime::k_Call), R(13), U8(2),
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B(Star), R(9),
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B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(9), U8(1),
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B(JumpIfToBooleanFalse), U8(4),
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B(Jump), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
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B(Ldar), R(12),
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B(SetPendingMessage),
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B(LdaZero),
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B(TestEqualStrictNoFeedback), R(10),
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B(JumpIfFalse), U8(5),
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B(Ldar), R(11),
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B(ReThrow),
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B(LdaUndefined),
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/* 54 S> */ B(Return),
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]
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constant pool: [
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SYMBOL_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
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FIXED_ARRAY_TYPE,
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]
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handlers: [
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[10, 127, 133],
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[13, 91, 93],
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[193, 203, 205],
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]
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---
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snippet: "
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function f(arr) {
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for (let x of arr) { eval('1'); }
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}
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f([1, 2, 3]);
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"
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frame size: 22
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parameter count: 2
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bytecode array length: 343
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bytecodes: [
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B(CreateFunctionContext), U8(4),
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B(PushContext), R(7),
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B(Ldar), R(this),
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B(StaCurrentContextSlot), U8(5),
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B(Ldar), R(arg0),
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B(StaCurrentContextSlot), U8(4),
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B(CreateMappedArguments),
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B(StaCurrentContextSlot), U8(7),
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B(Ldar), R(new_target),
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B(StaCurrentContextSlot), U8(6),
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/* 10 E> */ B(StackCheck),
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B(Ldar), R(closure),
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B(CreateBlockContext), U8(0),
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B(PushContext), R(8),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(4),
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B(LdaZero),
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B(Star), R(3),
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B(Mov), R(context), R(11),
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B(Mov), R(context), R(12),
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/* 34 S> */ B(LdaContextSlot), R(8), U8(4), U8(0),
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B(Star), R(13),
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B(LdaNamedProperty), R(13), U8(1), U8(0),
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B(Star), R(14),
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B(CallProperty0), R(14), R(13), U8(2),
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B(JumpIfJSReceiver), U8(7),
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B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
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B(Star), R(1),
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/* 29 S> */ B(LdaNamedProperty), R(1), U8(2), U8(6),
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B(Star), R(13),
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B(CallProperty0), R(13), R(1), U8(4),
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B(Star), R(2),
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/* 29 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(2), U8(1),
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B(ToBooleanLogicalNot),
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B(JumpIfFalse), U8(7),
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(2), U8(1),
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B(LdaNamedProperty), R(2), U8(3), U8(8),
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B(JumpIfToBooleanTrue), U8(78),
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B(LdaNamedProperty), R(2), U8(4), U8(10),
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B(Star), R(4),
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B(LdaSmi), I8(2),
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B(Star), R(3),
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B(Mov), R(4), R(0),
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/* 20 E> */ B(StackCheck),
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B(Ldar), R(closure),
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B(CreateBlockContext), U8(5),
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B(PushContext), R(13),
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B(LdaTheHole),
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B(StaCurrentContextSlot), U8(4),
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B(Ldar), R(4),
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B(StaCurrentContextSlot), U8(4),
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/* 41 S> */ B(LdaLookupGlobalSlot), U8(6), U8(14), U8(1),
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B(Star), R(14),
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B(LdaConstant), U8(7),
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B(Star), R(15),
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B(LdaZero),
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B(Star), R(19),
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B(LdaSmi), I8(37),
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B(Star), R(20),
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B(LdaSmi), I8(41),
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B(Star), R(21),
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B(Mov), R(14), R(16),
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B(Mov), R(15), R(17),
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B(Mov), R(closure), R(18),
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B(CallRuntime), U16(Runtime::kResolvePossiblyDirectEval), R(16), U8(6),
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B(Star), R(14),
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/* 41 E> */ B(CallUndefinedReceiver1), R(14), R(15), U8(12),
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B(PopContext), R(13),
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B(LdaZero),
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B(Star), R(3),
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B(JumpLoop), U8(103), I8(0),
|
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B(Jump), U8(36),
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B(Star), R(13),
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B(Ldar), R(closure),
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B(CreateCatchContext), R(13), U8(8), U8(9),
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B(PushContext), R(13),
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B(Star), R(12),
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B(LdaSmi), I8(2),
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B(TestEqualStrict), R(3), U8(16),
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B(JumpIfFalse), U8(6),
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B(LdaSmi), I8(1),
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B(Star), R(3),
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B(LdaImmutableCurrentContextSlot), U8(4),
|
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B(Star), R(14),
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B(CallRuntime), U16(Runtime::kReThrow), R(14), U8(1),
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B(PopContext), R(13),
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B(LdaSmi), I8(-1),
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B(Star), R(9),
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B(Jump), U8(7),
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B(Star), R(10),
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B(LdaZero),
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B(Star), R(9),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Star), R(11),
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B(LdaZero),
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B(TestEqualStrict), R(3), U8(17),
|
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B(JumpIfTrue), U8(104),
|
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B(LdaNamedProperty), R(1), U8(10), U8(18),
|
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B(Star), R(5),
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B(TestUndetectable),
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B(JumpIfFalse), U8(4),
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B(Jump), U8(93),
|
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B(LdaSmi), I8(1),
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B(TestEqualStrict), R(3), U8(21),
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B(JumpIfFalse), U8(61),
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B(Ldar), R(5),
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B(TestTypeOf), U8(5),
|
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B(JumpIfFalse), U8(4),
|
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B(Jump), U8(18),
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B(Wide), B(LdaSmi), I16(134),
|
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B(Star), R(12),
|
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B(LdaConstant), U8(11),
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B(Star), R(13),
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B(CallRuntime), U16(Runtime::kNewTypeError), R(12), U8(2),
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B(Throw),
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B(Mov), R(context), R(12),
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B(Mov), R(5), R(13),
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B(Mov), R(1), R(14),
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B(InvokeIntrinsic), U8(Runtime::k_Call), R(13), U8(2),
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B(Jump), U8(20),
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B(Star), R(13),
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B(Ldar), R(closure),
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B(CreateCatchContext), R(13), U8(8), U8(12),
|
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B(Star), R(12),
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B(LdaTheHole),
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B(SetPendingMessage),
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B(Ldar), R(12),
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B(PushContext), R(13),
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B(PopContext), R(13),
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B(Jump), U8(27),
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B(Mov), R(5), R(12),
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B(Mov), R(1), R(13),
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B(InvokeIntrinsic), U8(Runtime::k_Call), R(12), U8(2),
|
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B(Star), R(6),
|
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B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(6), U8(1),
|
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B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
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B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(6), U8(1),
|
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B(Ldar), R(11),
|
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B(SetPendingMessage),
|
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B(LdaZero),
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B(TestEqualStrictNoFeedback), R(9),
|
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B(JumpIfFalse), U8(5),
|
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B(Ldar), R(10),
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B(ReThrow),
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B(PopContext), R(8),
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B(LdaUndefined),
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/* 54 S> */ B(Return),
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]
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constant pool: [
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FIXED_ARRAY_TYPE,
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SYMBOL_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["eval"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["1"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
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FIXED_ARRAY_TYPE,
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ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
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ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
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FIXED_ARRAY_TYPE,
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]
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|
handlers: [
|
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[35, 205, 211],
|
|
[38, 169, 171],
|
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[271, 281, 283],
|
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]
|
|
|
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---
|
|
snippet: "
|
|
function f(arr) {
|
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for (let x of arr) { (function() { return x; })(); }
|
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}
|
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f([1, 2, 3]);
|
|
"
|
|
frame size: 14
|
|
parameter count: 2
|
|
bytecode array length: 281
|
|
bytecodes: [
|
|
/* 10 E> */ B(StackCheck),
|
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B(LdaTheHole),
|
|
B(Star), R(0),
|
|
B(LdaZero),
|
|
B(Star), R(4),
|
|
B(Mov), R(context), R(10),
|
|
B(Mov), R(context), R(11),
|
|
/* 34 S> */ B(LdaNamedProperty), R(arg0), U8(0), U8(0),
|
|
B(Star), R(13),
|
|
B(CallProperty0), R(13), R(arg0), U8(2),
|
|
B(Mov), R(arg0), R(12),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(2),
|
|
/* 29 S> */ B(LdaNamedProperty), R(2), U8(1), U8(6),
|
|
B(Star), R(12),
|
|
B(CallProperty0), R(12), R(2), U8(4),
|
|
B(Star), R(3),
|
|
/* 29 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(3), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1),
|
|
B(LdaNamedProperty), R(3), U8(2), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(46),
|
|
B(LdaNamedProperty), R(3), U8(3), U8(10),
|
|
B(Star), R(5),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(4),
|
|
B(Mov), R(5), R(1),
|
|
/* 20 E> */ B(StackCheck),
|
|
B(Ldar), R(closure),
|
|
B(CreateBlockContext), U8(4),
|
|
B(PushContext), R(12),
|
|
B(LdaTheHole),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
B(Ldar), R(5),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
/* 41 S> */ B(CreateClosure), U8(5), U8(14), U8(2),
|
|
B(Star), R(13),
|
|
/* 67 E> */ B(CallUndefinedReceiver0), R(13), U8(12),
|
|
B(PopContext), R(12),
|
|
B(LdaZero),
|
|
B(Star), R(4),
|
|
B(JumpLoop), U8(71), I8(0),
|
|
B(Jump), U8(36),
|
|
B(Star), R(12),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(12), U8(6), U8(7),
|
|
B(PushContext), R(12),
|
|
B(Star), R(11),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(4), U8(15),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(4),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(13),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(13), U8(1),
|
|
B(PopContext), R(12),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(8),
|
|
B(Jump), U8(7),
|
|
B(Star), R(9),
|
|
B(LdaZero),
|
|
B(Star), R(8),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(10),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(4), U8(16),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(2), U8(8), U8(17),
|
|
B(Star), R(6),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(4), U8(20),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(6),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(11),
|
|
B(LdaConstant), U8(9),
|
|
B(Star), R(12),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(11), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(11),
|
|
B(Mov), R(6), R(12),
|
|
B(Mov), R(2), R(13),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(12), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(12),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(12), U8(6), U8(10),
|
|
B(Star), R(11),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(11),
|
|
B(PushContext), R(12),
|
|
B(PopContext), R(12),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(6), R(11),
|
|
B(Mov), R(2), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(11), U8(2),
|
|
B(Star), R(7),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(7), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(7), U8(1),
|
|
B(Ldar), R(10),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(8),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(9),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 73 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
FIXED_ARRAY_TYPE,
|
|
SHARED_FUNCTION_INFO_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
]
|
|
handlers: [
|
|
[10, 145, 151],
|
|
[13, 109, 111],
|
|
[211, 221, 223],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
function f(arr) {
|
|
for (let { x, y } of arr) { let z = x + y; }
|
|
}
|
|
f([{ x: 0, y: 3 }, { x: 1, y: 9 }, { x: -12, y: 17 }]);
|
|
"
|
|
frame size: 19
|
|
parameter count: 2
|
|
bytecode array length: 304
|
|
bytecodes: [
|
|
/* 10 E> */ B(StackCheck),
|
|
B(LdaTheHole),
|
|
B(Star), R(3),
|
|
B(LdaTheHole),
|
|
B(Star), R(4),
|
|
B(LdaZero),
|
|
B(Star), R(9),
|
|
B(Mov), R(context), R(15),
|
|
B(Mov), R(context), R(16),
|
|
/* 41 S> */ B(LdaNamedProperty), R(arg0), U8(0), U8(0),
|
|
B(Star), R(18),
|
|
B(CallProperty0), R(18), R(arg0), U8(2),
|
|
B(Mov), R(arg0), R(17),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(7),
|
|
/* 36 S> */ B(LdaNamedProperty), R(7), U8(1), U8(6),
|
|
B(Star), R(17),
|
|
B(CallProperty0), R(17), R(7), U8(4),
|
|
B(Star), R(8),
|
|
/* 36 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(8), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(8), U8(1),
|
|
B(LdaNamedProperty), R(8), U8(2), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(66),
|
|
B(LdaNamedProperty), R(8), U8(3), U8(10),
|
|
B(Star), R(10),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(9),
|
|
B(Mov), R(10), R(5),
|
|
/* 20 E> */ B(StackCheck),
|
|
B(Mov), R(5), R(6),
|
|
B(Ldar), R(6),
|
|
B(JumpIfUndefined), U8(6),
|
|
B(Ldar), R(6),
|
|
B(JumpIfNotNull), U8(16),
|
|
B(LdaSmi), I8(63),
|
|
B(Star), R(17),
|
|
B(LdaConstant), U8(4),
|
|
B(Star), R(18),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(17), U8(2),
|
|
/* 31 E> */ B(Throw),
|
|
/* 31 S> */ B(LdaNamedProperty), R(6), U8(4), U8(14),
|
|
B(Star), R(1),
|
|
/* 34 S> */ B(LdaNamedProperty), R(6), U8(5), U8(16),
|
|
B(Star), R(2),
|
|
/* 56 S> */ B(Ldar), R(2),
|
|
/* 58 E> */ B(Add), R(1), U8(18),
|
|
B(Star), R(0),
|
|
B(LdaZero),
|
|
B(Star), R(9),
|
|
B(JumpLoop), U8(91), I8(0),
|
|
B(Jump), U8(36),
|
|
B(Star), R(17),
|
|
B(Ldar), R(closure),
|
|
/* 56 E> */ B(CreateCatchContext), R(17), U8(6), U8(7),
|
|
B(PushContext), R(17),
|
|
B(Star), R(16),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(9), U8(19),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(9),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(18),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(18), U8(1),
|
|
B(PopContext), R(17),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(13),
|
|
B(Jump), U8(7),
|
|
B(Star), R(14),
|
|
B(LdaZero),
|
|
B(Star), R(13),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(15),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(9), U8(20),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(7), U8(8), U8(21),
|
|
B(Star), R(11),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(9), U8(24),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(11),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(16),
|
|
B(LdaConstant), U8(9),
|
|
B(Star), R(17),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(16),
|
|
B(Mov), R(11), R(17),
|
|
B(Mov), R(7), R(18),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(17), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(17),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(17), U8(6), U8(10),
|
|
B(Star), R(16),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(16),
|
|
B(PushContext), R(17),
|
|
B(PopContext), R(17),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(11), R(16),
|
|
B(Mov), R(7), R(17),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(16), U8(2),
|
|
B(Star), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(12), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(12), U8(1),
|
|
B(Ldar), R(15),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(13),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(14),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 65 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["x"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["y"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
]
|
|
handlers: [
|
|
[13, 168, 174],
|
|
[16, 132, 134],
|
|
[234, 244, 246],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
function* f(arr) {
|
|
for (let x of arr) { let y = x; }
|
|
}
|
|
f([1, 2, 3]);
|
|
"
|
|
frame size: 20
|
|
parameter count: 2
|
|
bytecode array length: 354
|
|
bytecodes: [
|
|
B(Mov), R(new_target), R(11),
|
|
B(Ldar), R(new_target),
|
|
B(JumpIfUndefined), U8(25),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetContext), R(11), U8(1),
|
|
B(PushContext), R(13),
|
|
B(RestoreGeneratorState), R(11),
|
|
B(Star), R(12),
|
|
B(SwitchOnSmiNoFeedback), U8(0), U8(1), I8(0),
|
|
B(LdaSmi), I8(81),
|
|
B(Star), R(13),
|
|
B(CallRuntime), U16(Runtime::kAbort), R(13), U8(1),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(12),
|
|
B(CreateFunctionContext), U8(1),
|
|
B(PushContext), R(13),
|
|
B(Ldar), R(arg0),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
B(Mov), R(closure), R(14),
|
|
B(Mov), R(this), R(15),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(14), U8(2),
|
|
B(Star), R(3),
|
|
/* 11 E> */ B(StackCheck),
|
|
B(Star), R(11),
|
|
/* 11 E> */ B(SuspendGenerator), R(11), R(0), U8(14), U8(0),
|
|
/* 55 S> */ B(Return),
|
|
B(RestoreGeneratorRegisters), R(11), R(0), U8(14),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(11), U8(1),
|
|
B(Star), R(14),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(11), U8(1),
|
|
B(SwitchOnSmiNoFeedback), U8(1), U8(2), I8(0),
|
|
B(Ldar), R(14),
|
|
/* 11 E> */ B(Throw),
|
|
B(Ldar), R(14),
|
|
/* 55 S> */ B(Return),
|
|
B(LdaTheHole),
|
|
B(Star), R(2),
|
|
B(LdaZero),
|
|
B(Star), R(7),
|
|
B(Mov), R(context), R(16),
|
|
B(Mov), R(context), R(17),
|
|
/* 35 S> */ B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(18),
|
|
B(LdaNamedProperty), R(18), U8(3), U8(0),
|
|
B(Star), R(19),
|
|
B(CallProperty0), R(19), R(18), U8(2),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(5),
|
|
/* 30 S> */ B(LdaNamedProperty), R(5), U8(4), U8(6),
|
|
B(Star), R(18),
|
|
B(CallProperty0), R(18), R(5), U8(4),
|
|
B(Star), R(6),
|
|
/* 30 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(6), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(6), U8(1),
|
|
B(LdaNamedProperty), R(6), U8(5), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(28),
|
|
B(LdaNamedProperty), R(6), U8(6), U8(10),
|
|
B(Star), R(8),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(7),
|
|
B(Mov), R(8), R(4),
|
|
/* 21 E> */ B(StackCheck),
|
|
B(Mov), R(4), R(1),
|
|
/* 50 S> */ B(Mov), R(1), R(0),
|
|
B(LdaZero),
|
|
B(Star), R(7),
|
|
B(JumpLoop), U8(53), I8(0),
|
|
B(Jump), U8(36),
|
|
B(Star), R(18),
|
|
B(Ldar), R(closure),
|
|
/* 50 E> */ B(CreateCatchContext), R(18), U8(7), U8(8),
|
|
B(PushContext), R(18),
|
|
B(Star), R(17),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(7), U8(12),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(7),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(19),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(19), U8(1),
|
|
B(PopContext), R(18),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(14),
|
|
B(Jump), U8(7),
|
|
B(Star), R(15),
|
|
B(LdaZero),
|
|
B(Star), R(14),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(16),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(7), U8(13),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(5), U8(9), U8(14),
|
|
B(Star), R(9),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(7), U8(17),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(9),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(17),
|
|
B(LdaConstant), U8(10),
|
|
B(Star), R(18),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(17), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(17),
|
|
B(Mov), R(9), R(18),
|
|
B(Mov), R(5), R(19),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(18), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(18),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(18), U8(7), U8(11),
|
|
B(Star), R(17),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(17),
|
|
B(PushContext), R(18),
|
|
B(PopContext), R(18),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(9), R(17),
|
|
B(Mov), R(5), R(18),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(17), U8(2),
|
|
B(Star), R(10),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(10), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
|
|
B(Ldar), R(16),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(14),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(15),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 55 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
Smi [46],
|
|
Smi [10],
|
|
Smi [7],
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
]
|
|
handlers: [
|
|
[100, 218, 224],
|
|
[103, 182, 184],
|
|
[284, 294, 296],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
function* f(arr) {
|
|
for (let x of arr) yield x;
|
|
}
|
|
f([1, 2, 3]);
|
|
"
|
|
frame size: 19
|
|
parameter count: 2
|
|
bytecode array length: 428
|
|
bytecodes: [
|
|
B(Mov), R(new_target), R(10),
|
|
B(Ldar), R(new_target),
|
|
B(JumpIfUndefined), U8(25),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetContext), R(10), U8(1),
|
|
B(PushContext), R(12),
|
|
B(RestoreGeneratorState), R(10),
|
|
B(Star), R(11),
|
|
B(SwitchOnSmiNoFeedback), U8(0), U8(2), I8(0),
|
|
B(LdaSmi), I8(81),
|
|
B(Star), R(12),
|
|
B(CallRuntime), U16(Runtime::kAbort), R(12), U8(1),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(11),
|
|
B(CreateFunctionContext), U8(1),
|
|
B(PushContext), R(12),
|
|
B(Ldar), R(arg0),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
B(Mov), R(closure), R(13),
|
|
B(Mov), R(this), R(14),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(13), U8(2),
|
|
B(Star), R(2),
|
|
/* 11 E> */ B(StackCheck),
|
|
B(Star), R(10),
|
|
/* 11 E> */ B(SuspendGenerator), R(10), R(0), U8(13), U8(0),
|
|
/* 49 S> */ B(Return),
|
|
B(RestoreGeneratorRegisters), R(10), R(0), U8(13),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(11),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
|
|
B(Star), R(13),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
|
|
B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0),
|
|
B(Ldar), R(13),
|
|
/* 11 E> */ B(Throw),
|
|
B(Ldar), R(13),
|
|
/* 49 S> */ B(Return),
|
|
B(LdaTheHole),
|
|
B(Star), R(1),
|
|
B(LdaZero),
|
|
B(Star), R(6),
|
|
B(Mov), R(context), R(15),
|
|
B(Mov), R(context), R(16),
|
|
/* 35 S> */ B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(17),
|
|
B(LdaNamedProperty), R(17), U8(4), U8(0),
|
|
B(Star), R(18),
|
|
B(CallProperty0), R(18), R(17), U8(2),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(4),
|
|
B(Ldar), R(11),
|
|
B(SwitchOnSmiNoFeedback), U8(5), U8(1), I8(1),
|
|
B(LdaSmi), I8(-2),
|
|
/* 35 E> */ B(TestEqualStrictNoFeedback), R(11),
|
|
B(JumpIfTrue), U8(11),
|
|
B(LdaSmi), I8(81),
|
|
B(Star), R(17),
|
|
B(CallRuntime), U16(Runtime::kAbort), R(17), U8(1),
|
|
/* 30 S> */ B(LdaNamedProperty), R(4), U8(6), U8(6),
|
|
B(Star), R(17),
|
|
B(CallProperty0), R(17), R(4), U8(4),
|
|
B(Star), R(5),
|
|
/* 30 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(5), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(5), U8(1),
|
|
B(LdaNamedProperty), R(5), U8(7), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(74),
|
|
B(LdaNamedProperty), R(5), U8(8), U8(10),
|
|
B(Star), R(7),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(6),
|
|
B(Mov), R(7), R(3),
|
|
/* 21 E> */ B(StackCheck),
|
|
B(Mov), R(3), R(0),
|
|
/* 40 S> */ B(LdaFalse),
|
|
B(Star), R(18),
|
|
B(Mov), R(0), R(17),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateIterResultObject), R(17), U8(2),
|
|
B(SuspendGenerator), R(10), R(0), U8(17), U8(1),
|
|
/* 49 S> */ B(Return),
|
|
B(RestoreGeneratorRegisters), R(10), R(0), U8(17),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(11),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
|
|
B(Star), R(17),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
|
|
B(SwitchOnSmiNoFeedback), U8(9), U8(2), I8(0),
|
|
B(Ldar), R(17),
|
|
/* 40 E> */ B(Throw),
|
|
B(LdaZero),
|
|
B(Star), R(13),
|
|
B(Mov), R(17), R(14),
|
|
B(Jump), U8(56),
|
|
B(LdaZero),
|
|
B(Star), R(6),
|
|
B(JumpLoop), U8(120), I8(0),
|
|
B(Jump), U8(36),
|
|
B(Star), R(17),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(17), U8(11), U8(12),
|
|
B(PushContext), R(17),
|
|
B(Star), R(16),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(6), U8(12),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(6),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(18),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(18), U8(1),
|
|
B(PopContext), R(17),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(13),
|
|
B(Jump), U8(8),
|
|
B(Star), R(14),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(13),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(15),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(6), U8(13),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(4), U8(13), U8(14),
|
|
B(Star), R(8),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(6), U8(17),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(8),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(16),
|
|
B(LdaConstant), U8(14),
|
|
B(Star), R(17),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(16),
|
|
B(Mov), R(8), R(17),
|
|
B(Mov), R(4), R(18),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(17), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(17),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(17), U8(11), U8(15),
|
|
B(Star), R(16),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(16),
|
|
B(PushContext), R(17),
|
|
B(PopContext), R(17),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(8), R(16),
|
|
B(Mov), R(4), R(17),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(16), U8(2),
|
|
B(Star), R(9),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(9), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
|
|
B(Ldar), R(15),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(13),
|
|
B(SwitchOnSmiNoFeedback), U8(16), U8(2), I8(0),
|
|
B(Jump), U8(8),
|
|
B(Ldar), R(14),
|
|
/* 49 S> */ B(Return),
|
|
B(Ldar), R(14),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 49 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
Smi [46],
|
|
Smi [109],
|
|
Smi [10],
|
|
Smi [7],
|
|
SYMBOL_TYPE,
|
|
Smi [82],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
Smi [15],
|
|
Smi [7],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
Smi [6],
|
|
Smi [9],
|
|
]
|
|
handlers: [
|
|
[100, 285, 291],
|
|
[103, 249, 251],
|
|
[352, 362, 364],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
async function f(arr) {
|
|
for (let x of arr) { let y = x; }
|
|
}
|
|
f([1, 2, 3]);
|
|
"
|
|
frame size: 23
|
|
parameter count: 2
|
|
bytecode array length: 400
|
|
bytecodes: [
|
|
B(CreateFunctionContext), U8(1),
|
|
B(PushContext), R(12),
|
|
B(Ldar), R(arg0),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
/* 16 E> */ B(StackCheck),
|
|
B(LdaUndefined),
|
|
B(Star), R(13),
|
|
B(CallJSRuntime), U8(%async_function_promise_create), R(13), U8(1),
|
|
B(Star), R(11),
|
|
B(Mov), R(context), R(15),
|
|
B(Mov), R(context), R(16),
|
|
B(LdaTheHole),
|
|
B(Star), R(2),
|
|
B(LdaZero),
|
|
B(Star), R(7),
|
|
B(Mov), R(context), R(19),
|
|
B(Mov), R(context), R(20),
|
|
/* 40 S> */ B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(21),
|
|
B(LdaNamedProperty), R(21), U8(0), U8(0),
|
|
B(Star), R(22),
|
|
B(CallProperty0), R(22), R(21), U8(2),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(5),
|
|
/* 35 S> */ B(LdaNamedProperty), R(5), U8(1), U8(6),
|
|
B(Star), R(21),
|
|
B(CallProperty0), R(21), R(5), U8(4),
|
|
B(Star), R(6),
|
|
/* 35 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(6), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(6), U8(1),
|
|
B(LdaNamedProperty), R(6), U8(2), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(28),
|
|
B(LdaNamedProperty), R(6), U8(3), U8(10),
|
|
B(Star), R(8),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(7),
|
|
B(Mov), R(8), R(4),
|
|
/* 26 E> */ B(StackCheck),
|
|
B(Mov), R(4), R(1),
|
|
/* 55 S> */ B(Mov), R(1), R(0),
|
|
B(LdaZero),
|
|
B(Star), R(7),
|
|
B(JumpLoop), U8(53), I8(0),
|
|
B(Jump), U8(40),
|
|
B(Star), R(21),
|
|
B(Ldar), R(closure),
|
|
/* 55 E> */ B(CreateCatchContext), R(21), U8(4), U8(5),
|
|
B(Star), R(20),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(20),
|
|
B(PushContext), R(21),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(7), U8(12),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(7),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(22),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(22), U8(1),
|
|
B(PopContext), R(21),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(17),
|
|
B(Jump), U8(7),
|
|
B(Star), R(18),
|
|
B(LdaZero),
|
|
B(Star), R(17),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(19),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(7), U8(13),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(5), U8(6), U8(14),
|
|
B(Star), R(9),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(7), U8(17),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(9),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(20),
|
|
B(LdaConstant), U8(7),
|
|
B(Star), R(21),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(20), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(20),
|
|
B(Mov), R(9), R(21),
|
|
B(Mov), R(5), R(22),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(21), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(21),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(21), U8(4), U8(8),
|
|
B(Star), R(20),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(20),
|
|
B(PushContext), R(21),
|
|
B(PopContext), R(21),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(9), R(20),
|
|
B(Mov), R(5), R(21),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(20), U8(2),
|
|
B(Star), R(10),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(10), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(10), U8(1),
|
|
B(Ldar), R(19),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(17),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(18),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
B(Star), R(17),
|
|
B(LdaUndefined),
|
|
B(Star), R(19),
|
|
B(Mov), R(11), R(18),
|
|
B(CallJSRuntime), U8(%promise_resolve), R(17), U8(3),
|
|
B(LdaZero),
|
|
B(Star), R(13),
|
|
B(Mov), R(11), R(14),
|
|
B(Jump), U8(59),
|
|
B(Jump), U8(45),
|
|
B(Star), R(17),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(17), U8(4), U8(9),
|
|
B(Star), R(16),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(16),
|
|
B(PushContext), R(17),
|
|
B(LdaUndefined),
|
|
B(Star), R(18),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(20),
|
|
B(LdaFalse),
|
|
B(Star), R(21),
|
|
B(Mov), R(11), R(19),
|
|
B(CallJSRuntime), U8(%promise_internal_reject), R(18), U8(4),
|
|
B(PopContext), R(17),
|
|
B(LdaZero),
|
|
B(Star), R(13),
|
|
B(Mov), R(11), R(14),
|
|
B(Jump), U8(14),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(13),
|
|
B(Jump), U8(8),
|
|
B(Star), R(14),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(13),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(15),
|
|
B(LdaUndefined),
|
|
B(Star), R(16),
|
|
B(Mov), R(11), R(17),
|
|
B(CallJSRuntime), U8(%async_function_promise_release), R(16), U8(2),
|
|
B(Ldar), R(15),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(13),
|
|
B(SwitchOnSmiNoFeedback), U8(10), U8(2), I8(0),
|
|
B(Jump), U8(8),
|
|
B(Ldar), R(14),
|
|
/* 60 S> */ B(Return),
|
|
B(Ldar), R(14),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 60 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
SYMBOL_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
Smi [6],
|
|
Smi [9],
|
|
]
|
|
handlers: [
|
|
[21, 355, 361],
|
|
[24, 310, 312],
|
|
[33, 155, 161],
|
|
[36, 115, 117],
|
|
[221, 231, 233],
|
|
]
|
|
|
|
---
|
|
snippet: "
|
|
async function f(arr) {
|
|
for (let x of arr) await x;
|
|
}
|
|
f([1, 2, 3]);
|
|
"
|
|
frame size: 25
|
|
parameter count: 2
|
|
bytecode array length: 514
|
|
bytecodes: [
|
|
B(Mov), R(new_target), R(11),
|
|
B(Ldar), R(new_target),
|
|
B(JumpIfUndefined), U8(25),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetContext), R(11), U8(1),
|
|
B(PushContext), R(13),
|
|
B(RestoreGeneratorState), R(11),
|
|
B(Star), R(12),
|
|
B(SwitchOnSmiNoFeedback), U8(0), U8(1), I8(0),
|
|
B(LdaSmi), I8(81),
|
|
B(Star), R(13),
|
|
B(CallRuntime), U16(Runtime::kAbort), R(13), U8(1),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(12),
|
|
B(CreateFunctionContext), U8(1),
|
|
B(PushContext), R(13),
|
|
B(Ldar), R(arg0),
|
|
B(StaCurrentContextSlot), U8(4),
|
|
B(Mov), R(closure), R(14),
|
|
B(Mov), R(this), R(15),
|
|
B(InvokeIntrinsic), U8(Runtime::k_CreateJSGeneratorObject), R(14), U8(2),
|
|
B(Star), R(2),
|
|
/* 16 E> */ B(StackCheck),
|
|
B(LdaUndefined),
|
|
B(Star), R(14),
|
|
B(CallJSRuntime), U8(%async_function_promise_create), R(14), U8(1),
|
|
B(Star), R(10),
|
|
B(Mov), R(2), R(11),
|
|
B(Mov), R(context), R(16),
|
|
B(Mov), R(context), R(17),
|
|
B(LdaTheHole),
|
|
B(Star), R(1),
|
|
B(LdaZero),
|
|
B(Star), R(6),
|
|
B(Mov), R(context), R(20),
|
|
B(Mov), R(context), R(21),
|
|
/* 40 S> */ B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(22),
|
|
B(LdaNamedProperty), R(22), U8(1), U8(0),
|
|
B(Star), R(23),
|
|
B(CallProperty0), R(23), R(22), U8(2),
|
|
B(JumpIfJSReceiver), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
|
|
B(Star), R(4),
|
|
B(Ldar), R(12),
|
|
B(SwitchOnSmiNoFeedback), U8(2), U8(1), I8(0),
|
|
B(LdaSmi), I8(-2),
|
|
/* 40 E> */ B(TestEqualStrictNoFeedback), R(12),
|
|
B(JumpIfTrue), U8(11),
|
|
B(LdaSmi), I8(81),
|
|
B(Star), R(22),
|
|
B(CallRuntime), U16(Runtime::kAbort), R(22), U8(1),
|
|
/* 35 S> */ B(LdaNamedProperty), R(4), U8(3), U8(6),
|
|
B(Star), R(22),
|
|
B(CallProperty0), R(22), R(4), U8(4),
|
|
B(Star), R(5),
|
|
/* 35 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(5), U8(1),
|
|
B(ToBooleanLogicalNot),
|
|
B(JumpIfFalse), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(5), U8(1),
|
|
B(LdaNamedProperty), R(5), U8(4), U8(8),
|
|
B(JumpIfToBooleanTrue), U8(72),
|
|
B(LdaNamedProperty), R(5), U8(5), U8(10),
|
|
B(Star), R(7),
|
|
B(LdaSmi), I8(2),
|
|
B(Star), R(6),
|
|
B(Mov), R(7), R(3),
|
|
/* 26 E> */ B(StackCheck),
|
|
B(Mov), R(3), R(0),
|
|
/* 45 S> */ B(Mov), R(11), R(22),
|
|
B(Mov), R(0), R(23),
|
|
B(Mov), R(10), R(24),
|
|
B(CallJSRuntime), U8(%async_function_await_uncaught), R(22), U8(3),
|
|
B(SuspendGenerator), R(11), R(0), U8(22), U8(0),
|
|
/* 54 S> */ B(Return),
|
|
B(RestoreGeneratorRegisters), R(11), R(0), U8(22),
|
|
B(LdaSmi), I8(-2),
|
|
B(Star), R(12),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(11), U8(1),
|
|
B(Star), R(22),
|
|
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(11), U8(1),
|
|
B(Star), R(23),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(23),
|
|
B(JumpIfTrue), U8(5),
|
|
B(Ldar), R(22),
|
|
/* 45 E> */ B(ReThrow),
|
|
B(LdaZero),
|
|
B(Star), R(6),
|
|
B(JumpLoop), U8(118), I8(0),
|
|
B(Jump), U8(40),
|
|
B(Star), R(22),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(22), U8(6), U8(7),
|
|
B(Star), R(21),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(21),
|
|
B(PushContext), R(22),
|
|
B(LdaSmi), I8(2),
|
|
B(TestEqualStrict), R(6), U8(12),
|
|
B(JumpIfFalse), U8(6),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(6),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(23),
|
|
B(CallRuntime), U16(Runtime::kReThrow), R(23), U8(1),
|
|
B(PopContext), R(22),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(18),
|
|
B(Jump), U8(7),
|
|
B(Star), R(19),
|
|
B(LdaZero),
|
|
B(Star), R(18),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(20),
|
|
B(LdaZero),
|
|
B(TestEqualStrict), R(6), U8(13),
|
|
B(JumpIfTrue), U8(104),
|
|
B(LdaNamedProperty), R(4), U8(8), U8(14),
|
|
B(Star), R(8),
|
|
B(TestUndetectable),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(93),
|
|
B(LdaSmi), I8(1),
|
|
B(TestEqualStrict), R(6), U8(17),
|
|
B(JumpIfFalse), U8(61),
|
|
B(Ldar), R(8),
|
|
B(TestTypeOf), U8(5),
|
|
B(JumpIfFalse), U8(4),
|
|
B(Jump), U8(18),
|
|
B(Wide), B(LdaSmi), I16(134),
|
|
B(Star), R(21),
|
|
B(LdaConstant), U8(9),
|
|
B(Star), R(22),
|
|
B(CallRuntime), U16(Runtime::kNewTypeError), R(21), U8(2),
|
|
B(Throw),
|
|
B(Mov), R(context), R(21),
|
|
B(Mov), R(8), R(22),
|
|
B(Mov), R(4), R(23),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(22), U8(2),
|
|
B(Jump), U8(20),
|
|
B(Star), R(22),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(22), U8(6), U8(10),
|
|
B(Star), R(21),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(21),
|
|
B(PushContext), R(22),
|
|
B(PopContext), R(22),
|
|
B(Jump), U8(27),
|
|
B(Mov), R(8), R(21),
|
|
B(Mov), R(4), R(22),
|
|
B(InvokeIntrinsic), U8(Runtime::k_Call), R(21), U8(2),
|
|
B(Star), R(9),
|
|
B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(9), U8(1),
|
|
B(JumpIfToBooleanFalse), U8(4),
|
|
B(Jump), U8(7),
|
|
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(9), U8(1),
|
|
B(Ldar), R(20),
|
|
B(SetPendingMessage),
|
|
B(LdaZero),
|
|
B(TestEqualStrictNoFeedback), R(18),
|
|
B(JumpIfFalse), U8(5),
|
|
B(Ldar), R(19),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
B(Star), R(18),
|
|
B(LdaUndefined),
|
|
B(Star), R(20),
|
|
B(Mov), R(10), R(19),
|
|
B(CallJSRuntime), U8(%promise_resolve), R(18), U8(3),
|
|
B(LdaZero),
|
|
B(Star), R(14),
|
|
B(Mov), R(10), R(15),
|
|
B(Jump), U8(59),
|
|
B(Jump), U8(45),
|
|
B(Star), R(18),
|
|
B(Ldar), R(closure),
|
|
B(CreateCatchContext), R(18), U8(6), U8(11),
|
|
B(Star), R(17),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(17),
|
|
B(PushContext), R(18),
|
|
B(LdaUndefined),
|
|
B(Star), R(19),
|
|
B(LdaImmutableCurrentContextSlot), U8(4),
|
|
B(Star), R(21),
|
|
B(LdaFalse),
|
|
B(Star), R(22),
|
|
B(Mov), R(10), R(20),
|
|
B(CallJSRuntime), U8(%promise_internal_reject), R(19), U8(4),
|
|
B(PopContext), R(18),
|
|
B(LdaZero),
|
|
B(Star), R(14),
|
|
B(Mov), R(10), R(15),
|
|
B(Jump), U8(14),
|
|
B(LdaSmi), I8(-1),
|
|
B(Star), R(14),
|
|
B(Jump), U8(8),
|
|
B(Star), R(15),
|
|
B(LdaSmi), I8(1),
|
|
B(Star), R(14),
|
|
B(LdaTheHole),
|
|
B(SetPendingMessage),
|
|
B(Star), R(16),
|
|
B(LdaUndefined),
|
|
B(Star), R(17),
|
|
B(Mov), R(10), R(18),
|
|
B(CallJSRuntime), U8(%async_function_promise_release), R(17), U8(2),
|
|
B(Ldar), R(16),
|
|
B(SetPendingMessage),
|
|
B(Ldar), R(14),
|
|
B(SwitchOnSmiNoFeedback), U8(12), U8(2), I8(0),
|
|
B(Jump), U8(8),
|
|
B(Ldar), R(15),
|
|
/* 54 S> */ B(Return),
|
|
B(Ldar), R(15),
|
|
B(ReThrow),
|
|
B(LdaUndefined),
|
|
/* 54 S> */ B(Return),
|
|
]
|
|
constant pool: [
|
|
Smi [91],
|
|
SYMBOL_TYPE,
|
|
Smi [85],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
|
|
FIXED_ARRAY_TYPE,
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
|
|
ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
|
|
FIXED_ARRAY_TYPE,
|
|
FIXED_ARRAY_TYPE,
|
|
Smi [6],
|
|
Smi [9],
|
|
]
|
|
handlers: [
|
|
[70, 469, 475],
|
|
[73, 424, 426],
|
|
[82, 269, 275],
|
|
[85, 229, 231],
|
|
[335, 345, 347],
|
|
]
|
|
|