shared

package
v0.0.0-...-3f1fa26 Latest Latest
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 Go to latest Published: Apr 28, 2022 License: MIT Imports: 6 Imported by: 6

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	TUint8   = &BaseType{T_Uint8}
	TUint16  = &BaseType{T_Uint16}
	TUint32  = &BaseType{T_Uint32}
	TUint64  = &BaseType{T_Uint64}
	TInt8    = &BaseType{T_Int8}
	TInt16   = &BaseType{T_Int16}
	TInt32   = &BaseType{T_Int32}
	TInt64   = &BaseType{T_Int64}
	TFloat64 = &BaseType{T_Float64}
	TBool    = &BaseType{T_Bool}
)

Functions

func IREXpression_length 

func IREXpression_length(expr IRExpression, ctx *IR_Context, target lib.Operand) (int, error)

func IR_Length 

func IR_Length(stmt IR, ctx *IR_Context) (int, error)

func IsFloat 

func IsFloat(b Type) bool

func IsInteger 

func IsInteger(b Type) bool

func IsLiteral 

func IsLiteral(e IRExpression) bool

func IsLiteralOrVariable 

func IsLiteralOrVariable(e IRExpression) bool

func IsNumber 

func IsNumber(b Type) bool

func IsSignedInteger 

func IsSignedInteger(b Type) bool

func IsVariable 

func IsVariable(e IRExpression) bool

Types

type ABI 

type ABI interface {
	GetRegistersForArgs(args []Type) []*encoding.Register
	ReturnTypeToOperand(ty Type) lib.Operand
}

TODO: should only contain call setup and teardown; this makes no sense.

type Allocator 

type Allocator interface {
	AllocateRegister(typ Type) lib.Operand
	DeallocateRegister(lib.Operand)
	Copy() Allocator
}

type Architecture 

type Architecture interface {
	EncodeExpression(expr IRExpression, ctx *IR_Context, target lib.Operand) ([]lib.Instruction, error)
	EncodeStatement(stmt IR, ctx *IR_Context) ([]lib.Instruction, error)
	EncodeDataSection(stmts []IR, ctx *IR_Context) (*Segments, error)
	GetAllocator() Allocator
}

type BaseIR 

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

func NewBaseIR 

func NewBaseIR(typ IRType) *BaseIR

func (*BaseIR) AddToDataSection 

func (b *BaseIR) AddToDataSection(ctx *IR_Context) error

func (*BaseIR) Type 

func (b *BaseIR) Type() IRType

type BaseIRExpression 

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

func NewBaseIRExpression 

func NewBaseIRExpression(typ IRExpressionType) *BaseIRExpression

func (*BaseIRExpression) AddToDataSection 

func (b *BaseIRExpression) AddToDataSection(ctx *IR_Context) error

func (*BaseIRExpression) Type 

func (b *BaseIRExpression) Type() IRExpressionType

type BaseType 

type BaseType struct {
	TypeNr TypeNr
}

func (*BaseType) String 

func (b *BaseType) String() string

func (*BaseType) Type 

func (b *BaseType) Type() TypeNr

func (*BaseType) Width 

func (b *BaseType) Width() lib.Size

type IR 

type IR interface {
	Type() IRType
	String() string
	AddToDataSection(ctx *IR_Context) error
	SSA_Transform(*SSA_Context) IR
}

type IRExpression 

type IRExpression interface {
	Type() IRExpressionType
	ReturnType(ctx *IR_Context) Type
	AddToDataSection(ctx *IR_Context) error
	String() string
	SSA_Transform(*SSA_Context) (SSA_Rewrites, IRExpression)
}

type IRExpressionType 

type IRExpressionType int
const (
	Uint8       IRExpressionType = iota
	Uint16      IRExpressionType = iota
	Uint32      IRExpressionType = iota
	Uint64      IRExpressionType = iota
	Int8        IRExpressionType = iota
	Int16       IRExpressionType = iota
	Int32       IRExpressionType = iota
	Int64       IRExpressionType = iota
	Float64     IRExpressionType = iota
	ByteArray   IRExpressionType = iota
	StaticArray IRExpressionType = iota
	ArrayIndex  IRExpressionType = iota
	Bool        IRExpressionType = iota
	Struct      IRExpressionType = iota
	StructField IRExpressionType = iota
	And         IRExpressionType = iota
	Or          IRExpressionType = iota
	Not         IRExpressionType = iota
	Add         IRExpressionType = iota
	Sub         IRExpressionType = iota
	Mul         IRExpressionType = iota
	Div         IRExpressionType = iota
	Variable    IRExpressionType = iota
	Equals      IRExpressionType = iota
	LT          IRExpressionType = iota
	LTE         IRExpressionType = iota
	GT          IRExpressionType = iota
	GTE         IRExpressionType = iota
	Syscall     IRExpressionType = iota
	Cast        IRExpressionType = iota
	Function    IRExpressionType = iota
	Call        IRExpressionType = iota
)

func (IRExpressionType) String 

func (i IRExpressionType) String() string

type IRType 

type IRType int
const (
	Assignment      IRType = iota
	ArrayAssignment IRType = iota
	If              IRType = iota
	While           IRType = iota
	Return          IRType = iota
	AndThen         IRType = iota
	FunctionDef     IRType = iota
)

type IR_Context 

type IR_Context struct {
	Architecture Architecture
	ABI          ABI
	Allocator    Allocator

	VariableMap        map[string]lib.Operand
	VariableTypes      map[string]Type
	ReturnOperandStack []lib.Operand
	Segments           *Segments
	InstructionPointer uint
	StackPointer       int
	Commit             bool // if false turns AddInstruction into a noop
	// contains filtered or unexported fields
}

func NewIRContext 

func NewIRContext(arch Architecture, abi ABI) *IR_Context

func (*IR_Context) AddInstruction 

func (i *IR_Context) AddInstruction(instr ...lib.Instruction)

func (*IR_Context) AllocateRegister 

func (i *IR_Context) AllocateRegister(typ Type) lib.Operand

func (*IR_Context) Copy 

func (i *IR_Context) Copy() *IR_Context

func (*IR_Context) DeallocateRegister 

func (i *IR_Context) DeallocateRegister(reg lib.Operand)

func (*IR_Context) GetInstructions 

func (i *IR_Context) GetInstructions() []lib.Instruction

func (*IR_Context) PeekReturn 

func (i *IR_Context) PeekReturn() lib.Operand

func (*IR_Context) PopReturn 

func (i *IR_Context) PopReturn() lib.Operand

func (*IR_Context) PushReturnOperand 

func (i *IR_Context) PushReturnOperand(op lib.Operand)

type SSA_Context 

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

func NewSSA_Context 

func NewSSA_Context() *SSA_Context

func (*SSA_Context) GenerateVariable 

func (s *SSA_Context) GenerateVariable() string

type SSA_Rewrite 

type SSA_Rewrite struct {
	Variable string
	Expr     IRExpression
}

func NewSSA_Rewrite 

func NewSSA_Rewrite(v string, e IRExpression) SSA_Rewrite

type SSA_Rewrites 

type SSA_Rewrites []SSA_Rewrite

type Segment 

type Segment struct {
	Data []uint8
}

func NewSegment 

func NewSegment() *Segment

func (Segment) String 

func (s Segment) String() string

type SegmentPointer 

type SegmentPointer struct {
	SegmentType
	Offset uint
}

type SegmentType 

type SegmentType uint8
const (
	ReadOnly   SegmentType = 1
	ReadWrite  SegmentType = 2
	Executable SegmentType = 3
)

type Segments 

type Segments struct {
	Segments map[SegmentType]*Segment
}

func NewSegments 

func NewSegments() *Segments

func (*Segments) Add 

func (s *Segments) Add(ty SegmentType, data ...uint8) *SegmentPointer

func (*Segments) Encode 

func (s *Segments) Encode() []uint8

func (*Segments) GetAddress 

func (s *Segments) GetAddress(p *SegmentPointer) int

func (*Segments) String 

func (s *Segments) String() string

type TArray 

type TArray struct {
	ItemType Type
	Size     int
}

func (*TArray) String 

func (b *TArray) String() string

func (*TArray) Type 

func (t *TArray) Type() TypeNr

func (*TArray) Width 

func (b *TArray) Width() lib.Size

type TFunction 

type TFunction struct {
	ReturnType Type
	Args       []Type
	ArgNames   []string
}

func (*TFunction) String 

func (b *TFunction) String() string

func (*TFunction) Type 

func (t *TFunction) Type() TypeNr

func (*TFunction) Width 

func (b *TFunction) Width() lib.Size

type TStruct 

type TStruct struct {
	FieldTypes []Type
	Fields     []string
}

func (*TStruct) String 

func (b *TStruct) String() string

func (*TStruct) Type 

func (t *TStruct) Type() TypeNr

func (*TStruct) Width 

func (b *TStruct) Width() lib.Size

type Type 

type Type interface {
	Type() TypeNr
	String() string
	Width() lib.Size
}

type TypeNr 

type TypeNr int
const (
	T_Uint8    TypeNr = iota
	T_Uint16   TypeNr = iota
	T_Uint32   TypeNr = iota
	T_Uint64   TypeNr = iota
	T_Int8     TypeNr = iota
	T_Int16    TypeNr = iota
	T_Int32    TypeNr = iota
	T_Int64    TypeNr = iota
	T_Float64  TypeNr = iota
	T_Bool     TypeNr = iota
	T_Array    TypeNr = iota
	T_Function TypeNr = iota
	T_Struct   TypeNr = iota
)

func (TypeNr) String 

func (i TypeNr) String() string

Source Files

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