How to use Lookahead method of json Package

Best Go-testdeep code snippet using json.Lookahead

base_board.go

Source:base_board.go

1package models2// import os3// import requests4//5// from uuid import uuid46//7// from .board_model import BoardModel, CursorDelegate8// import neuralknight9//10//11// class NoBoard(Exception):12//     pass13//14//15// class BaseBoard:16//     GAMES = {}17//     if os.environ.get("PORT", ""):18//         PORT = os.environ["PORT"]19//     else:20//         PORT = 808021//     API_URL = "http://localhost:{}".format(PORT)22//23//     @classmethod24//     def get_game(cls, _id):25//         """26//         Provide game matching id.27//         """28//         if _id in cls.GAMES:29//             return cls.GAMES[_id]30//         raise NoBoard31//32//     def __init__(self, board, _id=None, active_player=True):33//         if _id:34//             self.id = _id35//         else:36//             self.id = str(uuid4())37//         self.GAMES[self.id] = self38//         if isinstance(board, BoardModel):39//             self._board = board40//         else:41//             self._board = BoardModel(board)42//         self.board = self._board.board43//         self.cursor_delegate = CursorDelegate()44//         self._active_player = active_player45//         self.player1 = None46//         self.player2 = None47//48//     def __bool__(self):49//         """50//         Ensure active player king on board.51//         """52//         return bool(self._board)53//54//     def __contains__(self, piece):55//         """56//         Ensure piece on board.57//         """58//         return piece in self._board59//60//     def __iter__(self):61//         """62//         Provide next boards at one lookahead.63//         """64//         return self._board.lookahead_boards(1)65//66//     def request(self, method, resource, *args, json=None, **kwargs):67//         if neuralknight.testapp:68//             if method == "POST":69//                 return neuralknight.testapp.post_json(resource, json).json70//             if method == "PUT":71//                 return neuralknight.testapp.put_json(resource, json).json72//             if method == "GET":73//                 return neuralknight.testapp.get(resource, json).json74//         if method == "POST":75//             self.executor.submit(76//                 requests.post, f"{ self.API_URL }{ resource }", data=json, **kwargs77//             ).add_done_callback(self.handle_future)78//         if method == "PUT":79//             self.executor.submit(80//                 requests.put, f"{ self.API_URL }{ resource }", json=json, **kwargs81//             ).add_done_callback(self.handle_future)82//         if method == "GET":83//             self.executor.submit(84//                 requests.get, f"{ self.API_URL }{ resource }", data=json, **kwargs85//             ).add_done_callback(self.handle_future)86//87//     def active_player(self):88//         """89//         UUID of active player.90//         """91//         if self._active_player:92//             return self.player193//         return self.player294//95//     def close(self):96//         self.GAMES.pop(self.id, None)97//         return {}98//99//     def current_state_v1(self):100//         """101//         Provide REST view of game state.102//         """103//         return {"state": self.board}104//105//     def handle_future(self, future):106//         """107//         Handle a future from and async request.108//         """109//         future.result().json()110//111//     def prune_lookahead_boards(self, n=4):112//         return self._board.prune_lookahead_boards(n)113//114//     def lookahead_boards(self, n=4):115//         return self._board.lookahead_boards(n)116//117//     def update(self, state):118//         """119//         Validate and return new board state.120//         """121//         board = type(self)(122//             self._board.update(tuple(map(bytes.fromhex, state))), self.id, not self._active_player)123//         board.player1 = self.player1124//         board.player2 = self.player2125//         return board...

parser.go

Source:parser.go

1package ck2parser2import (3	"ck2-parser/internal/app/lexer"4	"io"5	"os"6	"path/filepath"7	"strconv"8)9type Parser struct {10	Filepath  string       `json:"filepath"`11	lexer     *lexer.Lexer `json:"-"`12	lookahead *lexer.Token `json:"-"`13	Data      []*Node      `json:"data"`14	scope     *Node15}16func New(file *os.File) (*Parser, error) {17	file_path, err := filepath.Abs(file.Name())18	if err != nil {19		return nil, err20	}21	b, err := io.ReadAll(file)22	if err != nil {23		return nil, err24	}25	lexer := lexer.New(b)26	return &Parser{27		Filepath:  file_path,28		lexer:     lexer,29		lookahead: nil,30		Data:      nil,31		scope:     nil,32	}, nil33}34func (p *Parser) Parse() (*Parser, error) {35	p.lookahead, _ = p.lexer.GetNextToken()36	p.Data = p.NodeList()37	return p, nil38}39func (p *Parser) NodeList(opt_stop_lookahead ...lexer.TokenType) []*Node {40	nodes := make([]*Node, 0)41	for {42		if p.lookahead == nil {43			break44		}45		if len(opt_stop_lookahead) > 0 && p.lookahead.Type == opt_stop_lookahead[0] {46			p._eat(lexer.END)47			break48		}49		new_node := p.Node()50		nodes = append(nodes, new_node)51	}52	return nodes53}54func (p *Parser) Node() *Node {55	switch p.lookahead.Type {56	case lexer.COMMENT:57		return p.CommentNode()58	default:59		return p.ExpressionNode()60	}61}62func (p *Parser) CommentNode() *Node {63	return &Node{64		Type: Comment,65		Data: p.CommentLiteral(),66	}67}68func (p *Parser) ExpressionNode() *Node {69	key := p.Literal()70	var _type NodeType71	var _operator *lexer.Token72	var _opvalue string73	switch p.lookahead.Type {74	case lexer.EQUALS:75		_operator = p._eat(lexer.EQUALS)76		if string(_operator.Value) == "==" {77			_type = Comparison78		} else {79			_type = Property80		}81		_opvalue = string(_operator.Value)82	case lexer.COMPARISON:83		_operator = p._eat(lexer.COMPARISON)84		_type = Comparison85		_opvalue = string(_operator.Value)86	}87	var value interface{}88	switch p.lookahead.Type {89	case lexer.WORD, lexer.NUMBER:90		value = p.Literal()91		return &Node{92			Type:     _type,93			Key:      key,94			Operator: _opvalue,95			Data:     value,96		}97	case lexer.START:98		node := &Node{99			Type:     Block,100			Key:      key,101			Operator: _opvalue,102			Data:     nil,103		}104		if p.scope == nil {105			node.Type = Entity106			p.scope = node107		}108		node.Data = p.BlockNode()109		if p.scope == node {110			p.scope = nil111		}112		return node113	default:114		return nil115	}116}117func (p *Parser) BlockNode() []*Node {118	p._eat(lexer.START)119	if p.lookahead.Type == lexer.END {120		return nil121	} else {122		return p.NodeList(lexer.END)123	}124}125func (p *Parser) Literal() interface{} {126	switch p.lookahead.Type {127	case lexer.WORD:128		return p.WordLiteral()129	case lexer.NUMBER:130		return p.NumberLiteral()131	case lexer.COMMENT:132		return p.CommentLiteral()133	default:134		panic("[Parser] Unexpected Literal: " + strconv.Quote(string(p.lookahead.Value)) + ", with type of: " + string(p.lookahead.Type))135	}136}137func (p *Parser) WordLiteral() string {138	token := p._eat(lexer.WORD)139	return string(token.Value)140}141func (p *Parser) NumberLiteral() float32 {142	token := p._eat(lexer.NUMBER)143	number, err := strconv.ParseFloat(string(token.Value), 32)144	if err != nil {145		panic("[Parser] Unexpected NumberLiteral: " + strconv.Quote(string(token.Value)))146	}147	return float32(number)148}149func (p *Parser) CommentLiteral() string {150	token := p._eat(lexer.COMMENT)151	return string(token.Value)152}153func (p *Parser) _eat(tokentype lexer.TokenType) *lexer.Token {154	token := p.lookahead155	if token == nil {156		panic("[Parser] Unexpected end of input, expected: " + string(tokentype))157	}158	if token.Type != tokentype {159		panic("[Parser] Unexpected token: \"" + string(token.Value) + "\" with type of " + string(token.Type) + ", expected type: " + string(tokentype))160	}161	var err error162	p.lookahead, err = p.lexer.GetNextToken()163	if err != nil {164		panic(err)165	}166	return token167}...

module.go

Source:module.go

1package keystorev42import "encoding/json"3type moduleLookahead struct {4	Function string `json:"function"`5}6type moduleRemainder struct {7	Params  interface{} `json:"params"`8	Message JsonBytes   `json:"message"`9}10// unmarshalModule unmarshals the function and message data, and parameters based on paramsFn.11//12// The paramsFn should return a pointer to the destination struct to json-unmarshal into,13// or return an error if the function was not recognized.14func unmarshalModule(data []byte, function *string, message *JsonBytes,15	paramsFn func(function string) (interface{}, error)) error {16	var lookahead moduleLookahead17	if err := json.Unmarshal(data, &lookahead); err != nil {18		return err19	}20	*function = lookahead.Function21	dst, err := paramsFn(lookahead.Function)22	if err != nil {23		return err24	}25	var remainder moduleRemainder26	remainder.Params = dst27	if err := json.Unmarshal(data, &remainder); err != nil {28		return err29	}30	*message = remainder.Message...

Lookahead

Using AI Code Generation

1import (2func main() {3    var jsonBlob = []byte(`[4        {"Name": "Platypus", "Order": "Monotremata"},5        {"Name": "Quoll",    "Order": "Dasyuromorphia"}6    type Animal struct {7    }8    err := json.Unmarshal(jsonBlob, &animals)9    if err != nil {10        fmt.Println("error:", err)11    }12    fmt.Printf("%+v13}14[{Name:Platypus Order:Monotremata} {Name:Quoll Order:Dasyuromorphia}]15import (16func main() {17    var jsonBlob = []byte(`[18        {"Name": "Platypus", "Order": "Monotremata"},19        {"Name": "Quoll",    "Order": "Dasyuromorphia"}20    type Animal struct {21    }22    err := json.Unmarshal(jsonBlob, &animals)23    if err != nil {24        fmt.Println("error:", err)25    }26    fmt.Printf("%+v27}28[{Name:Platypus Order:Monotremata} {Name:Quoll Order:Dasyuromorphia}]

Lookahead

Using AI Code Generation

1import (2type Person struct {3}4func main() {5    jsonFile, err := os.Open("data.json")6    if err != nil {7        fmt.Println(err)8    }9    fmt.Println("Successfully Opened users.json")10    defer jsonFile.Close()11    byteValue, _ := ioutil.ReadAll(jsonFile)12    json.Unmarshal(byteValue, &users)13    for i := 0; i < len(users); i++ {14        fmt.Println("User Type: " + users[i].Name)15        fmt.Println("Name: " + users[i].Name)16        fmt.Println("Age: " + string(users[i].Age))17        fmt.Println()18    }19}

Lookahead

Using AI Code Generation

1import (2func main() {3    var input = []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)4    dec := json.NewDecoder(bytes.NewReader(input))5    for {6        tok, err := dec.Token()7        if err == io.EOF {8        }9        if err != nil {10            panic(err)11        }12        switch tok := tok.(type) {13            fmt.Printf("String: %s14            fmt.Printf("Delim: %s15", string(tok))16            fmt.Printf("Float64: %f17            fmt.Printf("Bool: %t18            fmt.Printf("Null19            fmt.Printf("Unknown20        }21    }22}23Delim: {24Delim: }25import (26type Person struct {27}28func main() {29    var input = []byte(`{"Name":"Wednesday","Age":6,"Parents":["Gomez","Morticia"]}`)30    err := json.NewDecoder(bytes.NewReader(input)).Decode(&person)31    if err != nil {32        panic(err)33    }34    fmt.Printf("%+v35}36{ Name:Wednesday Age:6 Parents

Lookahead

Using AI Code Generation

1import (2type Person struct {3}4func main() {5	data := []byte(`{"Name":"John","Age":30}`)6	dec := json.NewDecoder(bytes.NewReader(data))7	for {8		t, err := dec.Token()9		if err == io.EOF {10		}11		if err != nil {12			log.Fatal(err)13		}14		fmt.Printf("%T: %v15	}16}17json.Delim: {18json.Delim: }19import (20type Person struct {21}22func main() {23	data := []byte(`{"Name":"John","Age":30}`)24	dec := json.NewDecoder(bytes.NewReader(data))25	dec.UseNumber()26	if err := dec.Decode(&p); err != nil {27		log.Fatal(err)28	}29	fmt.Println(p.Age)30}31import (32type Person struct {33}34func main() {35	data := []byte(`{"Name":"John","Age":30,"Height":180}`)36	dec := json.NewDecoder(bytes.NewReader(data))37	dec.DisallowUnknownFields()38	if err := dec.Decode(&p); err != nil {39		log.Fatal(err)40	}41	fmt.Println(p)42}43import (44type Person struct {45}46func main() {47	data := []byte(`{"Name":"John","Age":30}`)48	if err := json.Unmarshal(data, &p); err != nil {49		log.Fatal(err)50	}51	fmt.Println(p)52}

Lookahead

Using AI Code Generation

1import java.io.*;2import java.util.*;3import java.text.*;4import java.math.*;5import java.util.regex.*;6import java.util.concurrent.*;7import java.util.concurrent.atomic.AtomicBoolean;8import java.util.concurrent.atomic.AtomicInteger;9import java.util.concurrent.atomic.AtomicLong;10import java.util.concurrent.atomic.AtomicReference;11import java.util.concurrent.atomic.AtomicReferenceArray;12import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;13import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;14import java.util.concurrent.atomic.AtomicLongFieldUpdater;15import java.util.concurrent.locks.*;16import java.util.concurrent.locks.AbstractQueuedSynchronizer.ConditionObject;17import java.util.concurrent.locks.ReentrantLock;18import java.util.concurrent.locks.ReentrantReadWriteLock;19import java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;20import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;21import java.util.concurrent.locks.StampedLock;22import java.util.concurrent.locks.LockSupport;23import java.util.concurrent.locks.LockSupport.ParkBlocker;24import java.util.concurrent.locks.LockSupport.Parker;25import java.util.concurrent.locks.LockSupport.Unpark;26import java.util.concurrent.locks.LockSupport.ParkBlocker;27import java.util.concurrent.locks.LockSupport.Parker;28import java.util.concurrent.locks.LockSupport.Unpark;29public class Solution {30    public static void main(String[] args) throws IOException {31        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));32        String line = br.readLine();33        int n = Integer.parseInt(line);34        String[] arr = br.readLine().split(" ");35        int[] arr1 = new int[n];36        for (int i = 0; i < n; i++) {37            arr1[i] = Integer.parseInt(arr[i]);38        }39        int[] arr2 = Arrays.copyOf(arr1, n);40        Arrays.sort(arr2);41        int count = 0;42        for (int i = 0; i < n; i++) {43            if (arr1[i] != arr2[i]) {44                count++;45            }46        }47        System.out.println(count);48    }49}

Lookahead

Using AI Code Generation

1import (2func main() {3    data = []byte(`{"Name":"John"}`)4    dec := json.NewDecoder(bytes.NewReader(data))5    for {6        t, err := dec.Token()7        if err == io.EOF {8        }9        if err != nil {10            log.Fatal(err)11        }12        fmt.Printf("%T: %v13    }14}15json.Delim: {16json.Delim: }

Lookahead

Using AI Code Generation

1import (2type Person struct {3}4func main() {5	person := Person{Name: "John", Age: 34}6	jsonBytes, _ := json.Marshal(person)7	dec := json.NewDecoder(bytes.NewReader(jsonBytes))8	_, err := dec.Token()9	if err != nil {10		fmt.Println(err)11	}12	for dec.More() {13		key, err := dec.Token()14		if err != nil {15			fmt.Println(err)16		}17		fmt.Println(key)18	}19}

Lookahead

Using AI Code Generation

1import (2func main() {3jsonString := `{"Name":"Bob", "Age": 32, "City": "New York"}`4var data map[string]interface{}5err := json.Unmarshal([]byte(jsonString), &data)6if err != nil {7fmt.Println(err)8}9fmt.Println(data)10}11import (12func main() {13jsonString := `{"Name":"Bob", "Age": 32, "City": "New York"}`14var data map[string]interface{}15reader := strings.NewReader(jsonString)16err := json.NewDecoder(reader).Decode(&data)17if err != nil {18fmt.Println(err)19}20fmt.Println(data)21}22import (23func main() {24var data map[string]interface{}25data = make(map[string]interface{})26encoder := json.NewEncoder(&buffer)27err := encoder.Encode(data)28if err != nil {29fmt.Println(err)30}31fmt.Println(buffer.String())32}33{"Name":"Bob","Age":32,"City":"New York"}34import (

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