operators

package

v1.6.2 Latest Latest Go to latest Published: May 27, 2019 License: LGPL-3.0, BSD-3-Clause Imports: 3 Imported by: 0

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github.com/ontio/ontology

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Documentation ¶

Overview ¶

Package operators provides all operators used by WebAssembly bytecode, together with their parameter and return type(s).

Index ¶

Variables
type InvalidOpcodeError
- func (e InvalidOpcodeError) Error() string
type Op
- func New(code byte) (Op, error)
- func (o Op) IsValid() bool

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	Call         = newPolymorphicOp(0x10, "call")
	CallIndirect = newPolymorphicOp(0x11, "call_indirect")
)

View Source

var (
	I32Eqz = newOp(0x45, "i32.eqz", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Eq  = newOp(0x46, "i32.eq", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Ne  = newOp(0x47, "i32.ne", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32LtS = newOp(0x48, "i32.lt_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32LtU = newOp(0x49, "i32.lt_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32GtS = newOp(0x4a, "i32.gt_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32GtU = newOp(0x4b, "i32.gt_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32LeS = newOp(0x4c, "i32.le_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32LeU = newOp(0x4d, "i32.le_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32GeS = newOp(0x4e, "i32.ge_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32GeU = newOp(0x4f, "i32.ge_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I64Eqz = newOp(0x50, "i64.eqz", []wasm.ValueType{wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64Eq  = newOp(0x51, "i64.eq", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64Ne  = newOp(0x52, "i64.ne", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64LtS = newOp(0x53, "i64.lt_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64LtU = newOp(0x54, "i64.lt_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64GtS = newOp(0x55, "i64.gt_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64GtU = newOp(0x56, "i64.gt_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64LeS = newOp(0x57, "i64.le_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64LeU = newOp(0x58, "i64.le_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64GeS = newOp(0x59, "i64.ge_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	I64GeU = newOp(0x5a, "i64.ge_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI32)
	F32Eq  = newOp(0x5b, "f32.eq", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F32Ne  = newOp(0x5c, "f32.ne", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F32Lt  = newOp(0x5d, "f32.lt", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F32Gt  = newOp(0x5e, "f32.gt", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F32Le  = newOp(0x5f, "f32.le", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F32Ge  = newOp(0x60, "f32.ge", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeI32)
	F64Eq  = newOp(0x61, "f64.eq", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
	F64Ne  = newOp(0x62, "f64.ne", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
	F64Lt  = newOp(0x63, "f64.lt", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
	F64Gt  = newOp(0x64, "f64.gt", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
	F64Le  = newOp(0x65, "f64.le", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
	F64Ge  = newOp(0x66, "f64.ge", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeI32)
)

View Source

var (
	I32Const = newOp(0x41, "i32.const", nil, wasm.ValueTypeI32)
	I64Const = newOp(0x42, "i64.const", nil, wasm.ValueTypeI64)
	F32Const = newOp(0x43, "f32.const", nil, wasm.ValueTypeF32)
	F64Const = newOp(0x44, "f64.const", nil, wasm.ValueTypeF64)
)

View Source

var (
	Unreachable = newOp(0x00, "unreachable", nil, noReturn)
	Nop         = newOp(0x01, "nop", nil, noReturn)
	Block       = newOp(0x02, "block", nil, noReturn)
	Loop        = newOp(0x03, "loop", nil, noReturn)
	If          = newOp(0x04, "if", []wasm.ValueType{wasm.ValueTypeI32}, noReturn)
	Else        = newOp(0x05, "else", nil, noReturn)
	End         = newOp(0x0b, "end", nil, noReturn)
	Br          = newPolymorphicOp(0x0c, "br")
	BrIf        = newOp(0x0d, "br_if", []wasm.ValueType{wasm.ValueTypeI32}, noReturn)
	BrTable     = newPolymorphicOp(0x0e, "br_table")
	Return      = newPolymorphicOp(0x0f, "return")
)

View Source

var (
	I32WrapI64     = newConversionOp(0xa7, "i32.wrap/i64")
	I32TruncSF32   = newConversionOp(0xa8, "i32.trunc_s/f32")
	I32TruncUF32   = newConversionOp(0xa9, "i32.trunc_u/f32")
	I32TruncSF64   = newConversionOp(0xaa, "i32.trunc_s/f64")
	I32TruncUF64   = newConversionOp(0xab, "i32.trunc_u/f64")
	I64ExtendSI32  = newConversionOp(0xac, "i64.extend_s/i32")
	I64ExtendUI32  = newConversionOp(0xad, "i64.extend_u/i32")
	I64TruncSF32   = newConversionOp(0xae, "i64.trunc_s/f32")
	I64TruncUF32   = newConversionOp(0xaf, "i64.trunc_u/f32")
	I64TruncSF64   = newConversionOp(0xb0, "i64.trunc_s/f64")
	I64TruncUF64   = newConversionOp(0xb1, "i64.trunc_u/f64")
	F32ConvertSI32 = newConversionOp(0xb2, "f32.convert_s/i32")
	F32ConvertUI32 = newConversionOp(0xb3, "f32.convert_u/i32")
	F32ConvertSI64 = newConversionOp(0xb4, "f32.convert_s/i64")
	F32ConvertUI64 = newConversionOp(0xb5, "f32.convert_u/i64")
	F32DemoteF64   = newConversionOp(0xb6, "f32.demote/f64")
	F64ConvertSI32 = newConversionOp(0xb7, "f64.convert_s/i32")
	F64ConvertUI32 = newConversionOp(0xb8, "f64.convert_u/i32")
	F64ConvertSI64 = newConversionOp(0xb9, "f64.convert_s/i64")
	F64ConvertUI64 = newConversionOp(0xba, "f64.convert_u/i64")
	F64PromoteF32  = newConversionOp(0xbb, "f64.promote/f32")
)

View Source

var (
	I32Load    = newOp(0x28, "i32.load", nil, wasm.ValueTypeI32)
	I64Load    = newOp(0x29, "i64.load", nil, wasm.ValueTypeI64)
	F32Load    = newOp(0x2a, "f32.load", nil, wasm.ValueTypeF32)
	F64Load    = newOp(0x2b, "f64.load", nil, wasm.ValueTypeF64)
	I32Load8s  = newOp(0x2c, "i32.load8_s", nil, wasm.ValueTypeI32)
	I32Load8u  = newOp(0x2d, "i32.load8_u", nil, wasm.ValueTypeI32)
	I32Load16s = newOp(0x2e, "i32.load16_s", nil, wasm.ValueTypeI32)
	I32Load16u = newOp(0x2f, "i32.load16_u", nil, wasm.ValueTypeI32)
	I64Load8s  = newOp(0x30, "i64.load8_s", nil, wasm.ValueTypeI64)
	I64Load8u  = newOp(0x31, "i64.load8_u", nil, wasm.ValueTypeI64)
	I64Load16s = newOp(0x32, "i64.load16_s", nil, wasm.ValueTypeI64)
	I64Load16u = newOp(0x33, "i64.load16_u", nil, wasm.ValueTypeI64)
	I64Load32s = newOp(0x34, "i64.load32_s", nil, wasm.ValueTypeI64)
	I64Load32u = newOp(0x35, "i64.load32_u", nil, wasm.ValueTypeI64)

	I32Store   = newOp(0x36, "i32.store", nil, wasm.ValueTypeI32)
	I64Store   = newOp(0x37, "i64.store", nil, wasm.ValueTypeI64)
	F32Store   = newOp(0x38, "f32.store", nil, wasm.ValueTypeF32)
	F64Store   = newOp(0x39, "f64.store", nil, wasm.ValueTypeF64)
	I32Store8  = newOp(0x3a, "i32.store8", nil, wasm.ValueTypeI32)
	I32Store16 = newOp(0x3b, "i32.store16", nil, wasm.ValueTypeI32)
	I64Store8  = newOp(0x3c, "i64.store8", nil, wasm.ValueTypeI64)
	I64Store16 = newOp(0x3d, "i64.store16", nil, wasm.ValueTypeI64)
	I64Store32 = newOp(0x3e, "i64.store32", nil, wasm.ValueTypeI32)

	CurrentMemory = newOp(0x3f, "current_memory", nil, wasm.ValueTypeI32)
	GrowMemory    = newOp(0x40, "grow_memory", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeI32)
)

View Source

var (
	I32Clz      = newOp(0x67, "i32.clz", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Ctz      = newOp(0x68, "i32.ctz", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Popcnt   = newOp(0x69, "i32.popcnt", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Add      = newOp(0x6a, "i32.add", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Sub      = newOp(0x6b, "i32.sub", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Mul      = newOp(0x6c, "i32.mul", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32DivS     = newOp(0x6d, "i32.div_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32DivU     = newOp(0x6e, "i32.div_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32RemS     = newOp(0x6f, "i32.rem_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32RemU     = newOp(0x70, "i32.rem_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32And      = newOp(0x71, "i32.and", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Or       = newOp(0x72, "i32.or", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Xor      = newOp(0x73, "i32.xor", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Shl      = newOp(0x74, "i32.shl", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32ShrS     = newOp(0x75, "i32.shr_s", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32ShrU     = newOp(0x76, "i32.shr_u", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Rotl     = newOp(0x77, "i32.rotl", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I32Rotr     = newOp(0x78, "i32.rotr", []wasm.ValueType{wasm.ValueTypeI32, wasm.ValueTypeI32}, wasm.ValueTypeI32)
	I64Clz      = newOp(0x79, "i64.clz", []wasm.ValueType{wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Ctz      = newOp(0x7a, "i64.ctz", []wasm.ValueType{wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Popcnt   = newOp(0x7b, "i64.popcnt", []wasm.ValueType{wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Add      = newOp(0x7c, "i64.add", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Sub      = newOp(0x7d, "i64.sub", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Mul      = newOp(0x7e, "i64.mul", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64DivS     = newOp(0x7f, "i64.div_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64DivU     = newOp(0x80, "i64.div_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64RemS     = newOp(0x81, "i64.div_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64RemU     = newOp(0x82, "i64.rem_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64And      = newOp(0x83, "i64.and", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Or       = newOp(0x84, "i64.or", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Xor      = newOp(0x85, "i64.xor", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Shl      = newOp(0x86, "i64.shl", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64ShrS     = newOp(0x87, "i64.shr_s", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64ShrU     = newOp(0x88, "i64.shr_u", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Rotl     = newOp(0x89, "i64.rotl", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	I64Rotr     = newOp(0x8a, "i64.rotr", []wasm.ValueType{wasm.ValueTypeI64, wasm.ValueTypeI64}, wasm.ValueTypeI64)
	F32Abs      = newOp(0x8b, "f32.abs", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Neg      = newOp(0x8c, "f32.neg", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Ceil     = newOp(0x8d, "f32.ceil", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Floor    = newOp(0x8e, "f32.floor", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Trunc    = newOp(0x8f, "f32.trunc", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Nearest  = newOp(0x90, "f32.nearest", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Sqrt     = newOp(0x91, "f32.sqrt", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Add      = newOp(0x92, "f32.add", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Sub      = newOp(0x93, "f32.sub", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Mul      = newOp(0x94, "f32.mul", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Div      = newOp(0x95, "f32.div", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Min      = newOp(0x96, "f32.min", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Max      = newOp(0x97, "f32.max", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F32Copysign = newOp(0x98, "f32.copysign", []wasm.ValueType{wasm.ValueTypeF32, wasm.ValueTypeF32}, wasm.ValueTypeF32)
	F64Abs      = newOp(0x99, "f64.abs", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Neg      = newOp(0x9a, "f64.neg", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Ceil     = newOp(0x9b, "f64.ceil", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Floor    = newOp(0x9c, "f64.floor", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Trunc    = newOp(0x9d, "f64.trunc", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Nearest  = newOp(0x9e, "f64.nearest", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Sqrt     = newOp(0x9f, "f64.sqrt", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Add      = newOp(0xa0, "f64.add", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Sub      = newOp(0xa1, "f64.sub", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Mul      = newOp(0xa2, "f64.mul", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Div      = newOp(0xa3, "f64.div", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Min      = newOp(0xa4, "f64.min", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Max      = newOp(0xa5, "f64.max", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
	F64Copysign = newOp(0xa6, "f64.copysign", []wasm.ValueType{wasm.ValueTypeF64, wasm.ValueTypeF64}, wasm.ValueTypeF64)
)

View Source

var (
	Drop   = newPolymorphicOp(0x1a, "drop")
	Select = newPolymorphicOp(0x1b, "select")
)

View Source

var (
	I32ReinterpretF32 = newOp(0xbc, "i32.reinterpret/f32", []wasm.ValueType{wasm.ValueTypeF32}, wasm.ValueTypeI32)
	I64ReinterpretF64 = newOp(0xbd, "i64.reinterpret/f64", []wasm.ValueType{wasm.ValueTypeF64}, wasm.ValueTypeI64)
	F32ReinterpretI32 = newOp(0xbe, "f32.reinterpret/i32", []wasm.ValueType{wasm.ValueTypeI32}, wasm.ValueTypeF32)
	F64ReinterpretI64 = newOp(0xbf, "f64.reinterpret/i64", []wasm.ValueType{wasm.ValueTypeI64}, wasm.ValueTypeF64)
)

View Source

var (
	GetLocal  = newPolymorphicOp(0x20, "get_local")
	SetLocal  = newPolymorphicOp(0x21, "set_local")
	TeeLocal  = newPolymorphicOp(0x22, "tee_local")
	GetGlobal = newPolymorphicOp(0x23, "get_global")
	SetGlobal = newPolymorphicOp(0x24, "set_global")
)

Functions ¶

This section is empty.

Types ¶

type InvalidOpcodeError ¶

type InvalidOpcodeError byte

func (InvalidOpcodeError) Error ¶

func (e InvalidOpcodeError) Error() string

type Op ¶

type Op struct {
	Code byte   // The single-byte opcode
	Name string // The name of the operator

	// Whether this operator is polymorphic.
	// A polymorphic operator has a variable arity. call, call_indirect, and
	// drop are examples of polymorphic operators.
	Polymorphic bool
	Args        []wasm.ValueType // an array of value types used by the operator as arguments, is nil for polymorphic operators
	Returns     wasm.ValueType   // the value returned (pushed) by the operator, is 0 for polymorphic operators
}

Op describes a WASM operator.

func New ¶

func New(code byte) (Op, error)

New returns the Op object for a valid given opcode. If code is invalid, an ErrInvalidOpcode is returned.

func (Op) IsValid ¶

func (o Op) IsValid() bool

Source Files ¶

View all Source files

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