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@ -18,6 +18,7 @@ mod generator; |
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mod get; |
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mod get; |
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mod iteration; |
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mod iteration; |
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mod meta; |
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mod meta; |
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mod modifier; |
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mod new; |
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mod new; |
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mod nop; |
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mod nop; |
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mod pop; |
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mod pop; |
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@ -60,6 +61,8 @@ pub(crate) use iteration::*; |
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#[doc(inline)] |
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#[doc(inline)] |
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pub(crate) use meta::*; |
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pub(crate) use meta::*; |
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#[doc(inline)] |
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#[doc(inline)] |
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pub(crate) use modifier::*; |
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#[doc(inline)] |
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pub(crate) use new::*; |
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pub(crate) use new::*; |
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#[doc(inline)] |
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#[doc(inline)] |
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pub(crate) use nop::*; |
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pub(crate) use nop::*; |
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@ -121,16 +124,86 @@ where |
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unsafe { read_unchecked(bytes, offset) } |
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unsafe { read_unchecked(bytes, offset) } |
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} |
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} |
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/// Represents a varying operand kind.
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#[derive(Default, Debug, Clone, Copy)] |
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pub(crate) enum VaryingOperandKind { |
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#[default] |
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U8, |
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U16, |
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U32, |
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} |
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#[derive(Debug, Clone, Copy)] |
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pub(crate) struct VaryingOperand { |
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kind: VaryingOperandKind, |
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value: u32, |
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} |
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impl PartialEq for VaryingOperand { |
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fn eq(&self, other: &Self) -> bool { |
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self.value == other.value |
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} |
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} |
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impl VaryingOperand { |
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#[must_use] |
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pub(crate) fn u8(value: u8) -> Self { |
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Self { |
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kind: VaryingOperandKind::U8, |
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value: u32::from(value), |
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} |
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} |
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#[must_use] |
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pub(crate) fn u16(value: u16) -> Self { |
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Self { |
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kind: VaryingOperandKind::U16, |
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value: u32::from(value), |
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} |
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} |
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#[must_use] |
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pub(crate) const fn u32(value: u32) -> Self { |
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Self { |
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kind: VaryingOperandKind::U32, |
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value, |
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} |
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} |
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#[must_use] |
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pub(crate) const fn value(self) -> u32 { |
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self.value |
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} |
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#[must_use] |
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pub(crate) const fn kind(self) -> VaryingOperandKind { |
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self.kind |
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} |
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} |
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trait BytecodeConversion: Sized { |
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trait BytecodeConversion: Sized { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>); |
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fn to_bytecode(&self, bytes: &mut Vec<u8>); |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self; |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, varying_kind: VaryingOperandKind) -> Self; |
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} |
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impl BytecodeConversion for VaryingOperand { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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match self.kind() { |
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VaryingOperandKind::U8 => u8::to_bytecode(&(self.value() as u8), bytes), |
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VaryingOperandKind::U16 => u16::to_bytecode(&(self.value() as u16), bytes), |
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VaryingOperandKind::U32 => u32::to_bytecode(&self.value(), bytes), |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, varying_kind: VaryingOperandKind) -> Self { |
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match varying_kind { |
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VaryingOperandKind::U8 => Self::u8(u8::from_bytecode(bytes, pc, varying_kind)), |
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VaryingOperandKind::U16 => Self::u16(u16::from_bytecode(bytes, pc, varying_kind)), |
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VaryingOperandKind::U32 => Self::u32(u32::from_bytecode(bytes, pc, varying_kind)), |
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} |
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} |
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} |
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} |
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impl BytecodeConversion for GeneratorResumeKind { |
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impl BytecodeConversion for GeneratorResumeKind { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.push(*self as u8); |
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bytes.push(*self as u8); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<u8>(bytes, *pc); |
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let value = read::<u8>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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JsValue::from(value).to_generator_resume_kind() |
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JsValue::from(value).to_generator_resume_kind() |
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@ -141,7 +214,7 @@ impl BytecodeConversion for bool { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.push(u8::from(*self)); |
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bytes.push(u8::from(*self)); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<u8>(bytes, *pc); |
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let value = read::<u8>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value != 0 |
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value != 0 |
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@ -152,7 +225,7 @@ impl BytecodeConversion for i8 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.push(*self as u8); |
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bytes.push(*self as u8); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -163,7 +236,7 @@ impl BytecodeConversion for u8 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.push(*self); |
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bytes.push(*self); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -174,7 +247,7 @@ impl BytecodeConversion for i16 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -185,7 +258,7 @@ impl BytecodeConversion for u16 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -196,7 +269,7 @@ impl BytecodeConversion for i32 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -207,7 +280,7 @@ impl BytecodeConversion for u32 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -218,7 +291,7 @@ impl BytecodeConversion for i64 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -229,7 +302,7 @@ impl BytecodeConversion for u64 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -240,7 +313,7 @@ impl BytecodeConversion for f32 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -251,7 +324,7 @@ impl BytecodeConversion for f64 { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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bytes.extend_from_slice(&self.to_ne_bytes()); |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let value = read::<Self>(bytes, *pc); |
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let value = read::<Self>(bytes, *pc); |
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*pc += std::mem::size_of::<Self>(); |
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*pc += std::mem::size_of::<Self>(); |
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value |
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value |
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@ -265,7 +338,7 @@ impl BytecodeConversion for ThinVec<u32> { |
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bytes.extend_from_slice(&item.to_ne_bytes()); |
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bytes.extend_from_slice(&item.to_ne_bytes()); |
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} |
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} |
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} |
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} |
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fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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fn from_bytecode(bytes: &[u8], pc: &mut usize, _varying_kind: VaryingOperandKind) -> Self { |
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let count = read::<u32>(bytes, *pc); |
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let count = read::<u32>(bytes, *pc); |
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*pc += std::mem::size_of::<u32>(); |
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*pc += std::mem::size_of::<u32>(); |
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let mut result = Self::with_capacity(count as usize); |
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let mut result = Self::with_capacity(count as usize); |
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@ -302,7 +375,7 @@ macro_rules! generate_opcodes { |
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/// The opcodes of the vm.
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/// The opcodes of the vm.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)] |
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#[derive(Debug, Clone, Copy, PartialEq, Eq)] |
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#[repr(u8)] |
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#[repr(u8)] |
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pub enum Opcode { |
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pub(crate) enum Opcode { |
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$( |
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$( |
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$(#[$inner $($args)*])* |
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$(#[$inner $($args)*])* |
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$Variant |
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$Variant |
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@ -323,30 +396,36 @@ macro_rules! generate_opcodes { |
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} |
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} |
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impl Opcode { |
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impl Opcode { |
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const MAX: usize = 2usize.pow(8); |
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const MAX: usize = 2usize.pow(8) * 3; |
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const NAMES: [&'static str; Self::MAX] = [ |
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const NAMES: [&'static str; Self::MAX] = [ |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::NAME),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::NAME),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::NAME),* |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::NAME),* |
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]; |
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]; |
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/// Name of this opcode.
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/// Name of this opcode.
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#[must_use] |
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#[must_use] |
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pub const fn as_str(self) -> &'static str { |
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pub(crate) const fn as_str(self) -> &'static str { |
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Self::NAMES[self as usize] |
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Self::NAMES[self as usize] |
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} |
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} |
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const INSTRUCTIONS: [&'static str; Self::MAX] = [ |
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const INSTRUCTIONS: [&'static str; Self::MAX] = [ |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::INSTRUCTION),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::INSTRUCTION),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::INSTRUCTION),* |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::INSTRUCTION),* |
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]; |
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]; |
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/// Name of the profiler event for this opcode.
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/// Name of the profiler event for this opcode.
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#[must_use] |
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#[must_use] |
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pub const fn as_instruction_str(self) -> &'static str { |
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pub(crate) const fn as_instruction_str(self) -> &'static str { |
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Self::INSTRUCTIONS[self as usize] |
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Self::INSTRUCTIONS[self as usize] |
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} |
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} |
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const EXECUTE_FNS: [fn(&mut Context<'_>) -> JsResult<CompletionType>; Self::MAX] = [ |
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const EXECUTE_FNS: [fn(&mut Context<'_>) -> JsResult<CompletionType>; Self::MAX] = [ |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::execute),* |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::execute),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::execute_with_u16_operands),*, |
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$(<generate_opcodes!(name $Variant $(=> $mapping)?)>::execute_with_u32_operands),* |
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]; |
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]; |
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pub(super) fn execute(self, context: &mut Context<'_>) -> JsResult<CompletionType> { |
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pub(super) fn execute(self, context: &mut Context<'_>) -> JsResult<CompletionType> { |
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@ -355,15 +434,18 @@ macro_rules! generate_opcodes { |
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} |
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} |
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/// This represents a VM instruction, it contains both opcode and operands.
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/// This represents a VM instruction, it contains both opcode and operands.
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///
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// TODO: An instruction should be a representation of a valid executable instruction (opcode + operands),
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// so variants like `ResevedN`, or operand width prefix modifiers, idealy shouldn't
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// be a part of `Instruction`.
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#[derive(Debug, Clone, PartialEq)] |
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#[derive(Debug, Clone, PartialEq)] |
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#[repr(u8)] |
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#[repr(u8)] |
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pub enum Instruction { |
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pub(crate) enum Instruction { |
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$( |
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$( |
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$(#[$inner $($args)*])* |
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$(#[$inner $($args)*])* |
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$Variant $({ |
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$Variant $({ |
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$( |
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$( |
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$(#[$fieldinner $($fieldargs)*])* |
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$(#[$fieldinner $($fieldargs)*])* |
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#[allow(missing_docs)] |
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$FieldName : $FieldType |
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$FieldName : $FieldType |
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),* |
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),* |
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})? |
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})? |
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@ -373,7 +455,8 @@ macro_rules! generate_opcodes { |
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impl Instruction { |
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impl Instruction { |
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/// Convert [`Instruction`] to compact bytecode.
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/// Convert [`Instruction`] to compact bytecode.
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#[inline] |
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#[inline] |
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pub fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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#[allow(dead_code)] |
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pub(crate) fn to_bytecode(&self, bytes: &mut Vec<u8>) { |
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match self { |
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match self { |
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$( |
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$( |
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Self::$Variant $({ |
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Self::$Variant $({ |
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@ -395,7 +478,7 @@ macro_rules! generate_opcodes { |
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/// If the provided bytecode is not valid.
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/// If the provided bytecode is not valid.
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#[inline] |
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#[inline] |
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#[must_use] |
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#[must_use] |
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pub fn from_bytecode(bytes: &[u8], pc: &mut usize) -> Self { |
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pub(crate) fn from_bytecode(bytes: &[u8], pc: &mut usize, varying_kind: VaryingOperandKind) -> Self { |
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let opcode = bytes[*pc].into(); |
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let opcode = bytes[*pc].into(); |
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*pc += 1; |
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*pc += 1; |
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match opcode { |
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match opcode { |
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@ -406,7 +489,7 @@ macro_rules! generate_opcodes { |
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$({ |
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$({ |
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Self::$Variant { |
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Self::$Variant { |
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$( |
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$( |
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$FieldName: BytecodeConversion::from_bytecode(bytes, pc) |
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$FieldName: BytecodeConversion::from_bytecode(bytes, pc, varying_kind) |
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),* |
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),* |
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} |
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} |
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})? |
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})? |
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@ -422,7 +505,7 @@ macro_rules! generate_opcodes { |
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/// Get the [`Opcode`] of the [`Instruction`].
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/// Get the [`Opcode`] of the [`Instruction`].
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#[inline] |
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#[inline] |
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#[must_use] |
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#[must_use] |
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pub const fn opcode(&self) -> Opcode { |
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pub(crate) const fn opcode(&self) -> Opcode { |
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match self { |
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match self { |
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$( |
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$( |
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Self::$Variant $({ $( $FieldName: _ ),* })? => Opcode::$Variant |
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Self::$Variant $({ $( $FieldName: _ ),* })? => Opcode::$Variant |
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@ -442,7 +525,22 @@ pub(crate) trait Operation { |
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const NAME: &'static str; |
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const NAME: &'static str; |
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const INSTRUCTION: &'static str; |
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const INSTRUCTION: &'static str; |
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/// Execute opcode with [`VaryingOperandKind::U8`] sized [`VaryingOperand`]s.
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fn execute(context: &mut Context<'_>) -> JsResult<CompletionType>; |
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fn execute(context: &mut Context<'_>) -> JsResult<CompletionType>; |
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/// Execute opcode with [`VaryingOperandKind::U16`] sized [`VaryingOperand`]s.
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///
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/// By default if not implemented will call [`Reserved::u16_execute()`] which panics.
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fn execute_with_u16_operands(context: &mut Context<'_>) -> JsResult<CompletionType> { |
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Reserved::execute_with_u16_operands(context) |
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} |
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/// Execute opcode with [`VaryingOperandKind::U32`] sized [`VaryingOperand`]s.
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///
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/// By default if not implemented will call [`Reserved::u32_execute()`] which panics.
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fn execute_with_u32_operands(context: &mut Context<'_>) -> JsResult<CompletionType> { |
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Reserved::execute_with_u32_operands(context) |
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} |
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} |
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} |
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generate_opcodes! { |
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generate_opcodes! { |
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@ -593,7 +691,7 @@ generate_opcodes! { |
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** (`literals[index]`)
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/// Stack: **=>** (`literals[index]`)
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PushLiteral { index: u32 }, |
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PushLiteral { index: VaryingOperand }, |
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/// Push empty object `{}` value on the stack.
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/// Push empty object `{}` value on the stack.
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///
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///
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@ -770,7 +868,7 @@ generate_opcodes! { |
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: rhs **=>** (private_name `in` rhs)
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/// Stack: rhs **=>** (private_name `in` rhs)
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InPrivate { index: u32 }, |
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InPrivate { index: VaryingOperand }, |
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/// Binary `==` operator.
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/// Binary `==` operator.
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///
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///
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@ -931,42 +1029,42 @@ generate_opcodes! { |
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>**
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/// Stack: **=>**
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DefVar { index: u32 }, |
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DefVar { index: VaryingOperand }, |
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/// Declare and initialize `var` type variable.
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/// Declare and initialize `var` type variable.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: value **=>**
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/// Stack: value **=>**
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DefInitVar { index: u32 }, |
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DefInitVar { index: VaryingOperand }, |
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/// Initialize a lexical binding.
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/// Initialize a lexical binding.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: value **=>**
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/// Stack: value **=>**
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PutLexicalValue { index: u32 }, |
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PutLexicalValue { index: VaryingOperand }, |
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/// Throws an error because the binding access is illegal.
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/// Throws an error because the binding access is illegal.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>**
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/// Stack: **=>**
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ThrowMutateImmutable { index: u32 }, |
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ThrowMutateImmutable { index: VaryingOperand }, |
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/// Find a binding on the environment chain and push its value.
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/// Find a binding on the environment chain and push its value.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** value
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/// Stack: **=>** value
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GetName { index: u32 }, |
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GetName { index: VaryingOperand }, |
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/// Find a binding on the environment and set the `current_binding` of the current frame.
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/// Find a binding on the environment and set the `current_binding` of the current frame.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>**
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/// Stack: **=>**
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GetLocator { index: u32 }, |
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GetLocator { index: VaryingOperand }, |
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/// Find a binding on the environment chain and push its value to the stack and its
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/// Find a binding on the environment chain and push its value to the stack and its
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/// `BindingLocator` to the `bindings_stack`.
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/// `BindingLocator` to the `bindings_stack`.
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@ -974,21 +1072,21 @@ generate_opcodes! { |
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** value
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/// Stack: **=>** value
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GetNameAndLocator { index: u32 }, |
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GetNameAndLocator { index: VaryingOperand }, |
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/// Find a binding on the environment chain and push its value. If the binding does not exist push undefined.
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/// Find a binding on the environment chain and push its value. If the binding does not exist push undefined.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** value
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/// Stack: **=>** value
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GetNameOrUndefined { index: u32 }, |
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GetNameOrUndefined { index: VaryingOperand }, |
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/// Find a binding on the environment chain and assign its value.
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/// Find a binding on the environment chain and assign its value.
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///
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///
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: value **=>**
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/// Stack: value **=>**
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SetName { index: u32 }, |
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SetName { index: VaryingOperand }, |
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/// Assigns a value to the binding pointed by the top of the `bindings_stack`.
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/// Assigns a value to the binding pointed by the top of the `bindings_stack`.
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///
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///
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@ -1000,7 +1098,7 @@ generate_opcodes! { |
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/// Operands: index: `u32`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** deleted
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/// Stack: **=>** deleted
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DeleteName { index: u32 }, |
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DeleteName { index: VaryingOperand }, |
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|
/// Get a property by name from an object an push it on the stack.
|
|
|
|
/// Get a property by name from an object an push it on the stack.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1009,15 +1107,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, receiver **=>** value
|
|
|
|
/// Stack: object, receiver **=>** value
|
|
|
|
GetPropertyByName { index: u32 }, |
|
|
|
GetPropertyByName { index: VaryingOperand }, |
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|
|
|
|
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|
|
|
|
|
/// Get a property method or undefined if the property is null or undefined.
|
|
|
|
|
|
|
|
///
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|
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|
/// Throws if the method is not a callable object.
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|
|
|
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|
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|
///
|
|
|
|
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
|
|
|
|
/// Stack: object **=>** object, method
|
|
|
|
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|
|
|
GetMethod { index: u32 }, |
|
|
|
|
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|
|
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|
|
/// Get a property by value from an object an push it on the stack.
|
|
|
|
/// Get a property by value from an object an push it on the stack.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1044,7 +1134,7 @@ generate_opcodes! { |
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|
|
/// Operands: index: `u32`
|
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|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
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|
|
|
/// Stack: object, receiver, value **=>** value
|
|
|
|
/// Stack: object, receiver, value **=>** value
|
|
|
|
SetPropertyByName { index: u32 }, |
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|
|
SetPropertyByName { index: VaryingOperand }, |
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|
/// Sets the name of a function object.
|
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|
/// Sets the name of a function object.
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|
///
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|
///
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|
@ -1067,21 +1157,21 @@ generate_opcodes! { |
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|
/// Operands: index: `u32`
|
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|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
DefineOwnPropertyByName { index: u32 }, |
|
|
|
DefineOwnPropertyByName { index: VaryingOperand }, |
|
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|
|
/// Defines a static class method by name.
|
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|
|
/// Defines a static class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, function **=>**
|
|
|
|
/// Stack: class, function **=>**
|
|
|
|
DefineClassStaticMethodByName { index: u32 }, |
|
|
|
DefineClassStaticMethodByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Defines a class method by name.
|
|
|
|
/// Defines a class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class_proto, function **=>**
|
|
|
|
/// Stack: class_proto, function **=>**
|
|
|
|
DefineClassMethodByName { index: u32 }, |
|
|
|
DefineClassMethodByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Sets a property by value of an object.
|
|
|
|
/// Sets a property by value of an object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1120,7 +1210,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
SetPropertyGetterByName { index: u32 }, |
|
|
|
SetPropertyGetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Defines a static getter class method by name.
|
|
|
|
/// Defines a static getter class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1129,7 +1219,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, binding_function **=>**
|
|
|
|
/// Stack: class, binding_function **=>**
|
|
|
|
DefineClassStaticGetterByName { index: u32 }, |
|
|
|
DefineClassStaticGetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Defines a getter class method by name.
|
|
|
|
/// Defines a getter class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1138,7 +1228,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class_proto, function **=>** class
|
|
|
|
/// Stack: class_proto, function **=>** class
|
|
|
|
DefineClassGetterByName { index: u32 }, |
|
|
|
DefineClassGetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Sets a getter property by value of an object.
|
|
|
|
/// Sets a getter property by value of an object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1174,7 +1264,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
SetPropertySetterByName { index: u32 }, |
|
|
|
SetPropertySetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Defines a static setter class method by name.
|
|
|
|
/// Defines a static setter class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1183,7 +1273,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, function **=>**
|
|
|
|
/// Stack: class, function **=>**
|
|
|
|
DefineClassStaticSetterByName { index: u32 }, |
|
|
|
DefineClassStaticSetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Defines a setter class method by name.
|
|
|
|
/// Defines a setter class method by name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1192,7 +1282,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class_proto, function **=>**
|
|
|
|
/// Stack: class_proto, function **=>**
|
|
|
|
DefineClassSetterByName { index: u32 }, |
|
|
|
DefineClassSetterByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Sets a setter property by value of an object.
|
|
|
|
/// Sets a setter property by value of an object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1228,7 +1318,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>** value
|
|
|
|
/// Stack: object, value **=>** value
|
|
|
|
SetPrivateField { index: u32 }, |
|
|
|
SetPrivateField { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Define a private property of a class constructor by it's name.
|
|
|
|
/// Define a private property of a class constructor by it's name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1237,7 +1327,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
DefinePrivateField { index: u32 }, |
|
|
|
DefinePrivateField { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Set a private method of a class constructor by it's name.
|
|
|
|
/// Set a private method of a class constructor by it's name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1246,7 +1336,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
SetPrivateMethod { index: u32 }, |
|
|
|
SetPrivateMethod { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Set a private setter property of a class constructor by it's name.
|
|
|
|
/// Set a private setter property of a class constructor by it's name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1255,7 +1345,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
SetPrivateSetter { index: u32 }, |
|
|
|
SetPrivateSetter { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Set a private getter property of a class constructor by it's name.
|
|
|
|
/// Set a private getter property of a class constructor by it's name.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1264,7 +1354,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
/// Stack: object, value **=>**
|
|
|
|
SetPrivateGetter { index: u32 }, |
|
|
|
SetPrivateGetter { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Get a private property by name from an object an push it on the stack.
|
|
|
|
/// Get a private property by name from an object an push it on the stack.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1273,7 +1363,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object **=>** value
|
|
|
|
/// Stack: object **=>** value
|
|
|
|
GetPrivateField { index: u32 }, |
|
|
|
GetPrivateField { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Push a field to a class.
|
|
|
|
/// Push a field to a class.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1287,28 +1377,28 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, field_function **=>**
|
|
|
|
/// Stack: class, field_function **=>**
|
|
|
|
PushClassFieldPrivate { index: u32 }, |
|
|
|
PushClassFieldPrivate { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Push a private getter to the class.
|
|
|
|
/// Push a private getter to the class.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, getter **=>**
|
|
|
|
/// Stack: class, getter **=>**
|
|
|
|
PushClassPrivateGetter { index: u32 }, |
|
|
|
PushClassPrivateGetter { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Push a private setter to the class.
|
|
|
|
/// Push a private setter to the class.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, setter **=>**
|
|
|
|
/// Stack: class, setter **=>**
|
|
|
|
PushClassPrivateSetter { index: u32 }, |
|
|
|
PushClassPrivateSetter { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Push a private method to the class.
|
|
|
|
/// Push a private method to the class.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: class, method **=>**
|
|
|
|
/// Stack: class, method **=>**
|
|
|
|
PushClassPrivateMethod { index: u32 }, |
|
|
|
PushClassPrivateMethod { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Deletes a property by name of an object.
|
|
|
|
/// Deletes a property by name of an object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1317,7 +1407,7 @@ generate_opcodes! { |
|
|
|
/// Operands: index: `u32`
|
|
|
|
/// Operands: index: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: object **=>**
|
|
|
|
/// Stack: object **=>**
|
|
|
|
DeletePropertyByName { index: u32 }, |
|
|
|
DeletePropertyByName { index: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Deletes a property by value of an object.
|
|
|
|
/// Deletes a property by value of an object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1337,10 +1427,10 @@ generate_opcodes! { |
|
|
|
|
|
|
|
|
|
|
|
/// Copy all properties of one object to another object.
|
|
|
|
/// Copy all properties of one object to another object.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Operands: excluded_key_count: `u32`, excluded_key_count_computed: `u32`
|
|
|
|
/// Operands: excluded_key_count: `VaryingOperand`, excluded_key_count_computed: `VaryingOperand`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: excluded_key_computed_0 ... excluded_key_computed_n, source, value, excluded_key_0 ... excluded_key_n **=>** value
|
|
|
|
/// Stack: excluded_key_computed_0 ... excluded_key_computed_n, source, value, excluded_key_0 ... excluded_key_n **=>** value
|
|
|
|
CopyDataProperties { excluded_key_count: u32, excluded_key_count_computed: u32 }, |
|
|
|
CopyDataProperties { excluded_key_count: VaryingOperand, excluded_key_count_computed: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Call ToPropertyKey on the value on the stack.
|
|
|
|
/// Call ToPropertyKey on the value on the stack.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1448,7 +1538,7 @@ generate_opcodes! { |
|
|
|
/// Operands: message: u32
|
|
|
|
/// Operands: message: u32
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: **=>**
|
|
|
|
/// Stack: **=>**
|
|
|
|
ThrowNewTypeError { message: u32 }, |
|
|
|
ThrowNewTypeError { message: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Pops value converts it to boolean and pushes it back.
|
|
|
|
/// Pops value converts it to boolean and pushes it back.
|
|
|
|
///
|
|
|
|
///
|
|
|
|
@ -1483,7 +1573,7 @@ generate_opcodes! { |
|
|
|
/// Operands: argument_count: `u32`
|
|
|
|
/// Operands: argument_count: `u32`
|
|
|
|
///
|
|
|
|
///
|
|
|
|
/// Stack: super_constructor, new_target, argument_1, ... argument_n **=>**
|
|
|
|
/// Stack: super_constructor, new_target, argument_1, ... argument_n **=>**
|
|
|
|
SuperCall { argument_count: u32 }, |
|
|
|
SuperCall { argument_count: VaryingOperand }, |
|
|
|
|
|
|
|
|
|
|
|
/// Execute the `super()` method where the arguments contain spreads.
|
|
|
|
/// Execute the `super()` method where the arguments contain spreads.
|
|
|
|
///
|
|
|
|
///
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@ -1523,52 +1613,52 @@ generate_opcodes! { |
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/// Get arrow function from the pre-compiled inner functions.
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/// Get arrow function from the pre-compiled inner functions.
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///
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///
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/// Operands: address: `u32`, method: `u8`
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/// Operands: index: `u32`
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetArrowFunction { index: u32, method: bool }, |
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GetArrowFunction { index: VaryingOperand }, |
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/// Get async arrow function from the pre-compiled inner functions.
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/// Get async arrow function from the pre-compiled inner functions.
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///
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///
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/// Operands: index: `u32`, method: `u8`
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/// Operands: index: `VaryingOperand`
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetAsyncArrowFunction { index: u32, method: bool }, |
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GetAsyncArrowFunction { index: VaryingOperand }, |
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/// Get function from the pre-compiled inner functions.
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/// Get function from the pre-compiled inner functions.
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///
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///
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/// Operands: index: `u32`, is_method: `u8`
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/// Operands: index: `VaryingOperand`, is_method: `u8`
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetFunction { index: u32, method: bool }, |
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GetFunction { index: VaryingOperand, method: bool }, |
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/// Get async function from the pre-compiled inner functions.
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/// Get async function from the pre-compiled inner functions.
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///
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///
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/// Operands: index: `u32`, method: `u8`
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/// Operands: index: `VaryingOperand`, method: `u8`
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetFunctionAsync { index: u32, method: bool }, |
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GetFunctionAsync { index: VaryingOperand, method: bool }, |
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/// Get generator function from the pre-compiled inner functions.
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/// Get generator function from the pre-compiled inner functions.
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///
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///
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/// Operands: index: `u32`,
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/// Operands: index: `VaryingOperand`,
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetGenerator { index: u32 }, |
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GetGenerator { index: VaryingOperand }, |
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/// Get async generator function from the pre-compiled inner functions.
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/// Get async generator function from the pre-compiled inner functions.
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///
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///
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/// Operands: index: `u32`,
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/// Operands: index: `VaryingOperand`,
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///
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///
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/// Stack: **=>** func
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/// Stack: **=>** func
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GetGeneratorAsync { index: u32 }, |
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GetGeneratorAsync { index: VaryingOperand }, |
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/// Call a function named "eval".
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/// Call a function named "eval".
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///
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///
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/// Operands: argument_count: `u32`
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/// Operands: argument_count: `VaryingOperand`
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///
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///
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/// Stack: this, func, argument_1, ... argument_n **=>** result
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/// Stack: this, func, argument_1, ... argument_n **=>** result
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CallEval { argument_count: u32 }, |
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CallEval { argument_count: VaryingOperand }, |
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/// Call a function named "eval" where the arguments contain spreads.
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/// Call a function named "eval" where the arguments contain spreads.
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///
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///
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@ -1582,7 +1672,7 @@ generate_opcodes! { |
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/// Operands: argument_count: `u32`
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/// Operands: argument_count: `u32`
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///
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///
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/// Stack: this, func, argument_1, ... argument_n **=>** result
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/// Stack: this, func, argument_1, ... argument_n **=>** result
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Call { argument_count: u32 }, |
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Call { argument_count: VaryingOperand }, |
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/// Call a function where the arguments contain spreads.
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/// Call a function where the arguments contain spreads.
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///
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///
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@ -1596,7 +1686,7 @@ generate_opcodes! { |
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/// Operands: argument_count: `u32`
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/// Operands: argument_count: `u32`
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///
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///
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/// Stack: func, argument_1, ... argument_n **=>** result
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/// Stack: func, argument_1, ... argument_n **=>** result
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New { argument_count: u32 }, |
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New { argument_count: VaryingOperand }, |
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/// Call construct on a function where the arguments contain spreads.
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/// Call construct on a function where the arguments contain spreads.
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///
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///
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@ -1800,7 +1890,7 @@ generate_opcodes! { |
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/// Operands: value_count: `u32`
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/// Operands: value_count: `u32`
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///
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///
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/// Stack: `value_1`,...`value_n` **=>** `string`
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/// Stack: `value_1`,...`value_n` **=>** `string`
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ConcatToString { value_count: u32 }, |
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ConcatToString { value_count: VaryingOperand }, |
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/// Call RequireObjectCoercible on the stack value.
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/// Call RequireObjectCoercible on the stack value.
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///
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///
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@ -1928,10 +2018,10 @@ generate_opcodes! { |
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/// Create a new tagged template object and cache it.
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/// Create a new tagged template object and cache it.
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///
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///
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/// Operands: count: `u32`, site: `u64`
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/// Operands: count: `VaryingOperand`, site: `u64`
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///
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///
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/// Stack: count * (cooked_value, raw_value) **=>** template
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/// Stack: count * (cooked_value, raw_value) **=>** template
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TemplateCreate { count: u32, site: u64 }, |
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TemplateCreate { count: VaryingOperand, site: u64 }, |
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/// Push a private environment.
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/// Push a private environment.
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///
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///
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@ -1954,6 +2044,20 @@ generate_opcodes! { |
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/// Stack: **=>**
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/// Stack: **=>**
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Nop, |
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Nop, |
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/// Opcode prefix modifier, makes all [`VaryingOperand`]s of an instruction [`u16`] sized.
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///
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/// Operands: opcode (operands if any).
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///
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/// Stack: The stack changes based on the opcode that is being prefixed.
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U16Operands, |
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/// Opcode prefix modifier, [`Opcode`] prefix operand modifier, makes all [`VaryingOperand`]s of an instruction [`u32`] sized.
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///
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/// Operands: opcode (operands if any).
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///
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/// Stack: The stack changes based on the opcode that is being prefixed.
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U32Operands, |
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/// Reserved [`Opcode`].
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/// Reserved [`Opcode`].
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Reserved1 => Reserved, |
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Reserved1 => Reserved, |
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/// Reserved [`Opcode`].
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/// Reserved [`Opcode`].
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@ -2068,8 +2172,6 @@ generate_opcodes! { |
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Reserved56 => Reserved, |
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Reserved56 => Reserved, |
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/// Reserved [`Opcode`].
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/// Reserved [`Opcode`].
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Reserved57 => Reserved, |
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Reserved57 => Reserved, |
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/// Reserved [`Opcode`].
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Reserved58 => Reserved, |
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} |
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} |
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/// Specific opcodes for bindings.
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/// Specific opcodes for bindings.
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@ -2086,7 +2188,7 @@ pub(crate) enum BindingOpcode { |
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/// Iterator over the instructions in the compact bytecode.
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/// Iterator over the instructions in the compact bytecode.
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#[derive(Debug, Clone)] |
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#[derive(Debug, Clone)] |
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pub struct InstructionIterator<'bytecode> { |
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pub(crate) struct InstructionIterator<'bytecode> { |
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bytes: &'bytecode [u8], |
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bytes: &'bytecode [u8], |
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pc: usize, |
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pc: usize, |
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} |
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} |
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@ -2095,21 +2197,52 @@ impl<'bytecode> InstructionIterator<'bytecode> { |
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/// Create a new [`InstructionIterator`] from bytecode array.
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/// Create a new [`InstructionIterator`] from bytecode array.
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#[inline] |
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#[inline] |
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#[must_use] |
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#[must_use] |
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pub const fn new(bytes: &'bytecode [u8]) -> Self { |
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pub(crate) const fn new(bytes: &'bytecode [u8]) -> Self { |
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Self { bytes, pc: 0 } |
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Self { bytes, pc: 0 } |
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} |
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} |
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/// Create a new [`InstructionIterator`] from bytecode array at pc.
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#[inline] |
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#[must_use] |
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pub(crate) const fn with_pc(bytes: &'bytecode [u8], pc: usize) -> Self { |
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Self { bytes, pc } |
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} |
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/// Return the current program counter.
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#[must_use] |
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pub(crate) const fn pc(&self) -> usize { |
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self.pc |
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} |
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} |
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} |
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impl Iterator for InstructionIterator<'_> { |
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impl Iterator for InstructionIterator<'_> { |
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type Item = Instruction; |
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type Item = (usize, VaryingOperandKind, Instruction); |
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#[inline] |
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#[inline] |
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fn next(&mut self) -> Option<Self::Item> { |
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fn next(&mut self) -> Option<Self::Item> { |
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let start_pc = self.pc; |
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if self.pc >= self.bytes.len() { |
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if self.pc >= self.bytes.len() { |
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return None; |
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return None; |
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} |
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} |
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Some(Instruction::from_bytecode(self.bytes, &mut self.pc)) |
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let instruction = |
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Instruction::from_bytecode(self.bytes, &mut self.pc, VaryingOperandKind::U8); |
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if instruction == Instruction::U16Operands { |
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return Some(( |
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start_pc, |
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VaryingOperandKind::U16, |
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Instruction::from_bytecode(self.bytes, &mut self.pc, VaryingOperandKind::U16), |
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)); |
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} else if instruction == Instruction::U32Operands { |
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return Some(( |
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start_pc, |
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VaryingOperandKind::U32, |
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Instruction::from_bytecode(self.bytes, &mut self.pc, VaryingOperandKind::U32), |
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)); |
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} |
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Some((start_pc, VaryingOperandKind::U8, instruction)) |
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} |
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} |
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} |
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} |
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Haled Odat
1 year ago
committed by
GitHub