interpreter

package
v2.1.1 Latest Latest
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 Go to latest Published: Nov 17, 2021 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrorFileExtension    = errors.New("error: target image must be .png")
	ErrorOpenImage        = errors.New("error: unable to open specified image")
	ErrorRandomGenerator  = errors.New("error: trying to generate a random number with n <= 0")
	ErrorDecodeImage      = errors.New("error: unable to decode specified image")
	ErrorOutOfBounds      = errors.New("error: out of bounds")
	ErrorInvalidHex       = errors.New("error: invalid hex format")
	ErrorLoadConfig       = errors.New("error: unable to load config file")
	ErrorCloseFile        = errors.New("error: unable to close the file")
	ErrorInputScanning    = errors.New("error: problems reading input")
	ErrorOpenFile         = errors.New("error: unable to open specified file")
	ErrorWriteFile        = errors.New("error: error on writing on opened file")
	ErrorReadFile         = errors.New("error: error on reading opened file")
	ErrorInvalidString    = errors.New("error: invalid string into the stack")
	ErrorFileAlreadyOpen  = errors.New("error: trying to open multiple files")
	ErrorMissingStartLoop = errors.New("error: missing start loop")
	ErrorMissingEndLoop   = errors.New("error: missing end loop")
	ErrorNoSpaceString    = errors.New("error: not enough space in to stack to push the string")
)

* Interpreter's throwable errors

View Source 
var (
	ErrorPop               = errors.New("error: trying to pop an empty stack")
	ErrorFullStack         = errors.New("error: trying to push in a full stack")
	ErrorInvalidStackIndex = errors.New("error: invalid stack index")
	ErrorInvalidMaxSize    = errors.New("error: invalid max stack size")
)
View Source 
var OPERATIONS = map[string]*Pixel{
	"INPUT_INT":    {R: 255, G: 255, B: 255},
	"OUTPUT_INT":   {R: 0, G: 0, B: 1},
	"SUM":          {R: 0, G: 206, B: 209},
	"SUB":          {R: 255, G: 165, B: 0},
	"DIV":          {R: 138, G: 43, B: 226},
	"MUL":          {R: 139, G: 0, B: 0},
	"MOD":          {R: 255, G: 218, B: 185},
	"RND":          {R: 0, G: 128, B: 0},
	"AND":          {R: 236, G: 243, B: 220},
	"OR":           {R: 183, G: 198, B: 230},
	"XOR":          {R: 245, G: 227, B: 215},
	"NAND":         {R: 225, G: 211, B: 239},
	"NOT":          {R: 255, G: 154, B: 162},
	"BAND":         {R: 138, G: 163, B: 153},
	"BOR":          {R: 125, G: 132, B: 178},
	"BXOR":         {R: 143, G: 166, B: 203},
	"BNOT":         {R: 219, G: 244, B: 167},
	"LSHIFT":       {R: 45, G: 106, B: 125},
	"RSHIFT":       {R: 67, G: 157, B: 186},
	"INPUT_ASCII":  {R: 227, G: 227, B: 227},
	"OUTPUT_ASCII": {R: 75, G: 75, B: 75},
	"POP":          {R: 204, G: 158, B: 6},
	"SWAP":         {R: 255, G: 189, B: 74},
	"CYCLE":        {R: 227, G: 127, B: 157},
	"RCYCLE":       {R: 233, G: 148, B: 174},
	"DUP":          {R: 0, G: 105, B: 148},
	"REVERSE":      {R: 165, G: 165, B: 141},
	"QUIT":         {R: 183, G: 228, B: 199},
	"OUTPUT":       {R: 155, G: 34, B: 66},
	"WHILE":        {R: 46, G: 26, B: 71},
	"WHILE_END":    {R: 104, G: 71, B: 141},
	"FILE_OPEN":    {R: 145, G: 246, B: 139},
	"FILE_CLOSE":   {R: 47, G: 237, B: 35},
}

* A map of all interpreter's operations

Functions

func Btoi 

func Btoi(b bool) int

Converts a bool to integer

func Itob 

func Itob(i int32) bool

Converts an integer to bool

func LoadConfigs added in v2.1.1 

func LoadConfigs(path string) error

Loads configs from the given config file and overrides standard operations color codes with the custom ones

Types

type Interpreter 

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

Interpreter structure

func NewInterpreter 

func NewInterpreter(debug bool, maxSize int, instructionSize int) *Interpreter

Interpreter's constructor. Params are flags value from CLI app.

func (*Interpreter) LoadImage 

func (i *Interpreter) LoadImage(path string) error

Loads image from OS and puts the stream into the interpreter image reference

func (*Interpreter) Run 

func (i *Interpreter) Run() error

* Executes the image interpretation doing Step() while the image program is terminated. * It is responsible to increase the program counter and calling the debugger if the flag is set.

func (*Interpreter) Step 

func (i *Interpreter) Step() (bool, string)

Interprets and executes next pixel in the given image

type Pixel 

type Pixel struct {
	R uint8
	G uint8
	B uint8
}

func (*Pixel) Equals 

func (p *Pixel) Equals(other Pixel) bool

func (*Pixel) String 

func (p *Pixel) String() string

type Stack 

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

func NewStack 

func NewStack(maxSize int) (*Stack, error)

func (*Stack) Clear 

func (stack *Stack) Clear() *Stack

func (*Stack) Cycle 

func (stack *Stack) Cycle() *Stack

func (*Stack) GetItemAt 

func (stack *Stack) GetItemAt(i int) (int32, error)

func (*Stack) IsEmpty 

func (stack *Stack) IsEmpty() bool

func (*Stack) Output 

func (stack *Stack) Output() bool

func (*Stack) Peek 

func (stack *Stack) Peek() int32

func (*Stack) Pop 

func (stack *Stack) Pop() (int32, error)

func (*Stack) Push 

func (stack *Stack) Push(val int32) error

func (*Stack) RCycle 

func (stack *Stack) RCycle() *Stack

func (*Stack) Reverse 

func (stack *Stack) Reverse() *Stack

func (*Stack) Size 

func (stack *Stack) Size() int

Source Files

View all Source files

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