code

package
v0.1.6 Latest Latest
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 Go to latest Published: May 23, 2022 License: Apache-2.0, MIT Imports: 3 Imported by: 0

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Constants

View Source 
const (
	Type1Pfx uint32 = 8 << 28
	Type2Pfx uint32 = 7 << 28
	Type3Pfx uint32 = 6 << 28
	Type4Pfx uint32 = 5 << 28
	Type5Pfx uint32 = 4 << 28
	Type6Pfx uint32 = 3 << 28
	Type0Pfx uint32 = 0
)
View Source 
const (
	Register = RegType(iota)
	Upvalue
)

Register types

Variables

This section is empty.

Functions

This section is empty.

Types

type Addr 

type Addr int

type BinOp 

type BinOp uint8
const (
	OpAdd BinOp = iota
	OpSub
	OpMul
	OpDiv
	OpFloorDiv
	OpMod
	OpPow
	OpBitAnd
	OpBitOr
	OpBitXor
	OpShiftL
	OpShiftR
	OpEq
	OpLt
	OpLeq
	OpConcat
)

func (BinOp) ToX 

func (op BinOp) ToX() uint32

type Bool 

type Bool bool

func (Bool) ShortString 

func (b Bool) ShortString() string

type Code 

type Code struct {
	Name                   string
	StartOffset, EndOffset uint
	UpvalueCount           int16
	RegCount               int16
	UpNames                []string
}

func (Code) ShortString 

func (c Code) ShortString() string

type Compiler 

type Compiler struct {
	// contains filtered or unexported fields
}

func NewCompiler 

func NewCompiler(source string) *Compiler

func (*Compiler) Code 

func (c *Compiler) Code() []Opcode

func (*Compiler) Emit 

func (c *Compiler) Emit(opcode Opcode, line int)

func (*Compiler) EmitJump 

func (c *Compiler) EmitJump(opcode Opcode, lbl Label, line int)

func (*Compiler) EmitLabel 

func (c *Compiler) EmitLabel(lbl Label)

func (*Compiler) Lines 

func (c *Compiler) Lines() []int32

func (*Compiler) Offset 

func (c *Compiler) Offset() uint

func (*Compiler) Source 

func (c *Compiler) Source() string

type Constant 

type Constant interface {
	ShortString() string
}

type Flag 

type Flag uint8
const (
	On  Flag = 1
	Off Flag = 0
)

func (Flag) ToF 

func (f Flag) ToF() uint32

type Float 

type Float float64

func (Float) ShortString 

func (f Float) ShortString() string

type Int 

type Int int64

func (Int) ShortString 

func (i Int) ShortString() string

type JumpOp 

type JumpOp uint8
const (
	OpCall JumpOp = iota
	OpJump
	OpJumpIf
	OpJumpIfForLoopDone // Extra opcode (3 registers needed)
)

func (JumpOp) ToY 

func (op JumpOp) ToY() uint32

type Label 

type Label uint

type Lit16 

type Lit16 uint16

func (Lit16) ToN 

func (l Lit16) ToN() uint32

type Lit8 

type Lit8 uint8

func (Lit8) ToB 

func (l Lit8) ToB() uint32

type NilType 

type NilType struct{}

func (NilType) ShortString 

func (n NilType) ShortString() string

type Opcode 

type Opcode uint32

Opcode is the type of opcodes

func MkType0 

func MkType0(f Flag, rA Reg) Opcode

func MkType1 

func MkType1(op BinOp, rA, rB, rC Reg) Opcode

func MkType2 

func MkType2(f Flag, rA, rB, rC Reg) Opcode

func MkType3 

func MkType3(f Flag, op UnOpK16, rA Reg, k Lit16) Opcode

func MkType4a 

func MkType4a(f Flag, op UnOp, rA, rB Reg) Opcode

func MkType4b 

func MkType4b(f Flag, op UnOpK, rA Reg, k Lit8) Opcode

func MkType5 

func MkType5(f Flag, op JumpOp, rA Reg, k Lit16) Opcode

func MkType6 

func MkType6(f Flag, rA, rB Reg, m uint8) Opcode

func (Opcode) Disassemble 

func (c Opcode) Disassemble(d *UnitDisassembler, i int) string

func (Opcode) GetA 

func (c Opcode) GetA() Reg

func (Opcode) GetB 

func (c Opcode) GetB() Reg

func (Opcode) GetC 

func (c Opcode) GetC() Reg

func (Opcode) GetF 

func (c Opcode) GetF() bool

func (Opcode) GetM 

func (c Opcode) GetM() uint8

func (Opcode) GetN 

func (c Opcode) GetN() uint16

func (Opcode) GetR 

func (c Opcode) GetR() uint8

func (Opcode) GetType 

func (c Opcode) GetType() uint8

func (Opcode) GetX 

func (c Opcode) GetX() BinOp

func (Opcode) GetY 

func (c Opcode) GetY() uint8

func (Opcode) GetZ 

func (c Opcode) GetZ() UnOp

func (Opcode) HasSubtypeFlagSet 

func (c Opcode) HasSubtypeFlagSet() bool

func (Opcode) HasType0 

func (c Opcode) HasType0() bool

func (Opcode) HasType1 

func (c Opcode) HasType1() bool

func (Opcode) HasType2or4 

func (c Opcode) HasType2or4() bool

func (Opcode) HasType4a 

func (c Opcode) HasType4a() bool

func (Opcode) HasType6 

func (c Opcode) HasType6() bool

func (Opcode) SetN 

func (c Opcode) SetN(n uint16) Opcode

func (Opcode) TypePfx 

func (c Opcode) TypePfx() uint32

type Reg 

type Reg uint16

Reg is a register

func MkRegister 

func MkRegister(idx uint8) Reg

func MkUpvalue 

func MkUpvalue(idx uint8) Reg

func (Reg) Idx 

func (r Reg) Idx() uint8

func (Reg) String 

func (r Reg) String() string

func (Reg) ToA 

func (r Reg) ToA() uint32

func (Reg) ToB 

func (r Reg) ToB() uint32

func (Reg) ToC 

func (r Reg) ToC() uint32

func (Reg) Tp 

func (r Reg) Tp() RegType

type RegType 

type RegType uint8

RegType represents the type of a register

type String 

type String string

func (String) ShortString 

func (s String) ShortString() string

type UnOp 

type UnOp uint8
const (
	OpNeg UnOp = iota
	OpBitNot
	OpLen
	OpClosure
	OpCont
	OpTailCont
	OpID
	OpTruth // Turn operand to boolean
	OpCell  // ?
	OpNot   // Added afterwards - why did I not have it in the first place?
	OpUpvalue
	OpEtcID
	OpToNumber
)

func (UnOp) ToC 

func (op UnOp) ToC() uint32

type UnOpK 

type UnOpK uint8
const (
	OpNil UnOpK = iota
	OpStr0
	OpTable
	OpStr1
	OpBool
	OpCC
	OpClear
	OpInt   // Extra 64 bits (2 opcodes)
	OpFloat // Extra 64 bits (2 opcodes)
	OpStrN  // Extra [n / 4] opcodes
)

func (UnOpK) ToC 

func (op UnOpK) ToC() uint32

type UnOpK16 

type UnOpK16 uint8
const (
	OpInt16 UnOpK16 = iota
	OpK
	OpClosureK
	OpStr2
)

func (UnOpK16) ToY 

func (op UnOpK16) ToY() uint32

type Unit 

type Unit struct {
	Source    string
	Code      []Opcode
	Lines     []int32
	Constants []Constant
}

func NewUnit 

func NewUnit(source string, code []Opcode, lines []int32, constants []Constant) *Unit

func (*Unit) Disassemble 

func (u *Unit) Disassemble(w io.Writer)

type UnitDisassembler 

type UnitDisassembler struct {
	// contains filtered or unexported fields
}

func NewUnitDisassembler 

func NewUnitDisassembler(unit *Unit) *UnitDisassembler

func (*UnitDisassembler) Disassemble 

func (d *UnitDisassembler) Disassemble(w io.Writer)

func (*UnitDisassembler) GetLabel 

func (d *UnitDisassembler) GetLabel(offset int) string

func (*UnitDisassembler) SetLabel 

func (d *UnitDisassembler) SetLabel(offset int, lbl string)

func (*UnitDisassembler) ShortKString 

func (d *UnitDisassembler) ShortKString(ki uint16) string

Source Files

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