How to use Parse method of prog Package

Best Syzkaller code snippet using prog.Parse

internal_expr_test.go

Source:internal_expr_test.go

...4	lexer "monkey/my_lexer"5	"testing"6	"github.com/stretchr/testify/assert"7)8func TestParseExpressionStatement(t *testing.T) {9	input := "a;b; let a=b"10	l := lexer.New(input)11	p := New(l)12	prog := p.Parse()13	assert.NotNil(t, prog)14	assert.NotNil(t, prog.Statements)15	assert.Equal(t, 3, len(prog.Statements))16	assert.Nil(t, p.err)17	assert.Equal(t, "a", prog.Statements[0].(*my_ast.ExpressionStatement).Expression.(*my_ast.Identifier).Value)18	assert.Equal(t, "b", prog.Statements[1].(*my_ast.ExpressionStatement).Expression.(*my_ast.Identifier).Value)19	letStmt, lok := prog.Statements[2].(*my_ast.LetStatement)20	assert.True(t, lok)21	assert.Equal(t, "a", letStmt.Ident.Value)22	assert.Equal(t, "b", letStmt.Value.(*my_ast.Identifier).String())23}24func TestParseNumberStatement(t *testing.T) {25	input := "1;1.234"26	l := lexer.New(input)27	p := New(l)28	prog := p.Parse()29	assert.NotNil(t, prog)30	assert.NotNil(t, prog.Statements)31	assert.Equal(t, 2, len(prog.Statements))32	assert.Nil(t, p.err)33	assert.EqualValues(t, 1, prog.Statements[0].(*my_ast.ExpressionStatement).Expression.(*my_ast.Integer).Value)34	assert.EqualValues(t, 1.234, prog.Statements[1].(*my_ast.ExpressionStatement).Expression.(*my_ast.Float).Value)35}36func TestPrefixExpressionStatement(t *testing.T) {37	input := "!5;\n-15.5;"38	l := lexer.New(input)39	p := New(l)40	prog := p.Parse()41	assert.NotNil(t, prog)42	assert.NotNil(t, prog.Statements)43	assert.Equal(t, 2, len(prog.Statements))44	assert.Nil(t, p.err)45	prefixNode, pok := prog.Statements[0].(*my_ast.ExpressionStatement).46		Expression.(*my_ast.PrefixExpression)47	assert.True(t, pok)48	assert.EqualValues(t, my_ast.PREOP_BANG, prefixNode.Operator)49	assert.EqualValues(t, 5, prefixNode.Right.(*my_ast.Integer).Value)50	prefixNode, pok = prog.Statements[1].(*my_ast.ExpressionStatement).51		Expression.(*my_ast.PrefixExpression)52	assert.True(t, pok)53	assert.EqualValues(t, my_ast.PREOP_MINUS, prefixNode.Operator)54	assert.EqualValues(t, 15.5, prefixNode.Right.(*my_ast.Float).Value)55}56func TestInfixExpressionStatement(t *testing.T) {57	tests := []struct {58		input     string59		leftExpr  interface{}60		rightExpr interface{}61		operator  string62	}{63		{"5+5", 5, 5, "+"},64		{"5-5", 5, 5, "-"},65		{"5 * 5", 5, 5, "*"},66		{"5/\r\n5", 5, 5, "/"},67		{"5>   5", 5, 5, ">"},68		{"5\t<5", 5, 5, "<"},69		{"5== 5;", 5, 5, "=="},70		{"5 !=5", 5, 5, "!="},71	}72	for _, test := range tests {73		l := lexer.New(test.input)74		p := New(l)75		prog := p.Parse()76		assert.Nil(t, p.Error())77		assert.NotNil(t, prog)78		assert.NotNil(t, prog.Statements)79		assert.Equal(t, 1, len(prog.Statements))80		infixNode := prog.Statements[0].(*my_ast.ExpressionStatement).Expression.(*my_ast.InfixExpression)81		assert.NotNil(t, infixNode)82		assert.EqualValues(t, test.leftExpr, infixNode.Left.(*my_ast.Integer).Value)83		assert.EqualValues(t, test.leftExpr, infixNode.Right.(*my_ast.Integer).Value)84		assert.EqualValues(t, test.operator, infixNode.Operator)85	}86}87type TestWithExpect struct {88	input  string89	expect string90}91func TestOperatorPrecedence(t *testing.T) {92	tests := []TestWithExpect{93		{"-b*c", "(-(b*c));"},94		{"a*b-c", "((a*b)-c);"},95		{"!-c", "(!(-c));"},96		{"-1+2", "((-1)+2);"},97	}98	testStringedStatements(t, tests)99}100func TestBooleanExpression(t *testing.T) {101	tests := []TestWithExpect{102		{"return true", "return true;"},103		{"true + false", "(true+false);"},104	}105	testStringedStatements(t, tests)106}107func TestGroupedExpression(t *testing.T) {108	tests := []TestWithExpect{109		{"1+(2+ 3) +4", "((1+(2+3))+4);"},110		{"(5 +5 )/2", "((5+5)/2);"},111		{"-(\t5+ \t5)", "(-(5+5));"},112		{"!(true == true)", "(!(true==true));"},113	}114	testStringedStatements(t, tests)115}116func TestIfExpression(t *testing.T) {117	input := "if (x< y) { x} else\n\n{x;return y;}"118	l := lexer.New(input)119	p := New(l)120	prog := p.Parse()121	assert.Nil(t, p.Error())122	assert.NotNil(t, prog)123	assert.NotNil(t, prog.Statements)124	assert.Equal(t, 1, len(prog.Statements))125	assert.Equal(t, "if((x<y)){x;}else{x;return y;};", prog.Statements[0].String())126	es, eok := prog.Statements[0].(*my_ast.ExpressionStatement)127	assert.True(t, eok)128	is, iok := es.Expression.(*my_ast.IfExpression)129	assert.True(t, iok)130	assert.Equal(t, "(x<y)", is.Condition.String())131	assert.Equal(t, "x", is.Consequence.Statements[0].(*my_ast.ExpressionStatement).Expression.(*my_ast.Identifier).Value)132	assert.Equal(t, "y", is.Alternative.Statements[1].(*my_ast.ReturnStatement).Value.(*my_ast.Identifier).Value)133}134func testStringedStatements(t *testing.T, tests []TestWithExpect) {135	for _, test := range tests {136		l := lexer.New(test.input)137		p := New(l)138		prog := p.Parse()139		assert.Nil(t, p.Error())140		assert.NotNil(t, prog)141		assert.NotNil(t, prog.Statements)142		assert.Equal(t, 1, len(prog.Statements))143		assert.Equal(t, test.expect, prog.Statements[0].String())144	}145}146func TestParseLetReturn(t *testing.T) {147	input := `148	let a = b; return c149	`150	l := lexer.New(input)151	p := New(l)152	prog := p.Parse()153	assert.NotNil(t, prog)154	assert.NotNil(t, prog.Statements)155	assert.Equal(t, 2, len(prog.Statements))156	assert.Nil(t, p.err)157	assert.Equal(t, "a", prog.Statements[0].(*my_ast.LetStatement).Ident.Value)158	assert.Equal(t, "b", prog.Statements[0].(*my_ast.LetStatement).Value.(*my_ast.Identifier).Value)159	assert.Equal(t, "c", prog.Statements[1].(*my_ast.ReturnStatement).Value.(*my_ast.Identifier).Value)160}161func TestParseFunctionExpression(t *testing.T) {162	tests := []TestWithExpect{163		{"fn(x,y)\n{x+y;}", "fn(x,y){(x+y);};"},164		{"fn(x){return x+2}", "fn(x){return (x+2);};"},165	}166	testStringedStatements(t, tests)167}168func TestParseCallExpression(t *testing.T) {169	tests := []TestWithExpect{170		{"fn(x,y)\n{x+y;}(1,\ta)", "fn(x,y){(x+y);}(1,a);"},171		{"add(1,2* 3, 4 + 5,add(1+2))", "add(1,(2*3),(4+5),add((1+2)));"},172	}173	testStringedStatements(t, tests)174}175func TestStringLiteral(t *testing.T) {176	input := `"Hello\tWorld!\n";`177	l := lexer.New(input)178	p := New(l)179	prog := p.Parse()180	assert.NotNil(t, prog)181	assert.Nil(t, p.err)182	assert.NotNil(t, prog.Statements)183	assert.Equal(t, 1, len(prog.Statements))184	es, eok := prog.Statements[0].(*my_ast.ExpressionStatement)185	assert.True(t, eok)186	ss, sok := es.Expression.(*my_ast.StringExpression)187	assert.True(t, sok)188	assert.Equal(t, `Hello\tWorld!\n`, ss.Value)189}190func TestParseArrayExpression(t *testing.T) {191	tests := []TestWithExpect{192		{"[1, 2*2, !false]", "[1,(2*2),(!false)];"},193		{"[1, 2*2, !false] + [1]", "([1,(2*2),(!false)]+[1]);"},194	}195	testStringedStatements(t, tests)196}197func TestParseArrayIndexingExpression(t *testing.T) {198	tests := []TestWithExpect{199		{"[1+1][0]", "([(1+1)][0]);"},200		{"[1][0:1]", "([1][0:1]);"},201		{"[1][:1]", "([1][:1]);"},202		{"[1][::1+1]", "([1][::(1+1)]);"},203		{"[1][::]", "([1][::]);"},204		{"[1][]", "([1][]);"},205		{"[1][:]", "([1][:]);"},206		{"[1][1::]", "([1][1::]);"},207		{"[1][:1:]", "([1][:1:]);"},208		{"a*[1,2,3,4][b*c]*d", "((a*([1,2,3,4][(b*c)]))*d);"},209	}210	testStringedStatements(t, tests)211}212func TestParseMapExpression(t *testing.T) {213	tests := []TestWithExpect{214		{`{"one": 1, two: 2+1, 3: [1,2,3][:]}`, `{one:1,two:(2+1),3:([1,2,3][:])};`},215		{"{}", "{};"},216	}217	testStringedStatements(t, tests)218}...

segwit.go

Source:segwit.go

...8func IsP2WScript(prog []byte) bool {9	return IsP2WPKHScript(prog) || IsP2WSHScript(prog) || IsStraightforward(prog)10}11func IsStraightforward(prog []byte) bool {12	insts, err := vm.ParseProgram(prog)13	if err != nil {14		return false15	}16	if len(insts) != 1 {17		return false18	}19	return insts[0].Op == vm.OP_TRUE || insts[0].Op == vm.OP_FAIL20}21func IsP2WPKHScript(prog []byte) bool {22	insts, err := vm.ParseProgram(prog)23	if err != nil {24		return false25	}26	if len(insts) != 2 {27		return false28	}29	if insts[0].Op > vm.OP_16 {30		return false31	}32	return insts[1].Op == vm.OP_DATA_20 && len(insts[1].Data) == consensus.PayToWitnessPubKeyHashDataSize33}34func IsP2WSHScript(prog []byte) bool {35	insts, err := vm.ParseProgram(prog)36	if err != nil {37		return false38	}39	if len(insts) != 2 {40		return false41	}42	if insts[0].Op > vm.OP_16 {43		return false44	}45	return insts[1].Op == vm.OP_DATA_32 && len(insts[1].Data) == consensus.PayToWitnessScriptHashDataSize46}47func ConvertP2PKHSigProgram(prog []byte) ([]byte, error) {48	insts, err := vm.ParseProgram(prog)49	if err != nil {50		return nil, err51	}52	if insts[0].Op == vm.OP_0 {53		return vmutil.P2PKHSigProgram(insts[1].Data)54	}55	return nil, errors.New("unknow P2PKH version number")56}57func ConvertP2SHProgram(prog []byte) ([]byte, error) {58	insts, err := vm.ParseProgram(prog)59	if err != nil {60		return nil, err61	}62	if insts[0].Op == vm.OP_0 {63		return vmutil.P2SHProgram(insts[1].Data)64	}65	return nil, errors.New("unknow P2SHP version number")66}67func GetHashFromStandardProg(prog []byte) ([]byte, error) {68	insts, err := vm.ParseProgram(prog)69	if err != nil {70		return nil, err71	}72	return insts[1].Data, nil73}...

Parse

Using AI Code Generation

1import (2func main() {3f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)4if err != nil {5fmt.Println(err)6}7fmt.Printf("f: %v8}

Parse

Using AI Code Generation

1import (2func main() {3    f, err := parser.ParseFile(fset, "1.go", nil, parser.ParseComments)4    if err != nil {5        fmt.Println(err)6    }7    ast.Print(fset, f)8    fmt.Println("AST: ", pretty.Sprint(f))9}10func main() {11    fmt.Println("Hello, playground")12}13AST:  &ast.File{14    Name: &ast.Ident{15    },16    Decls: []ast.Decl{17        &ast.FuncDecl{18            Name: &ast.Ident{19            },20            Type: &ast.FuncType{21                Params: &ast.FieldList{22                },23            },24            Body: &ast.BlockStmt{25                List: []ast.Stmt{26                    &ast.ExprStmt{27                        X: &ast.CallExpr{28                            Fun: &ast.SelectorExpr{29                                X:   &ast.Ident{Name: "fmt"},30                                Sel: &ast.Ident{Name: "Println"},31                            },32                            Args: []ast.Expr{33                                &ast.BasicLit{34                                },35                            },36                        },37                    },38                },39            },40        },41    },42    Scope:    &ast.Scope{Outer: nil, Objects: map[string]*ast.Object{"main": (*ast.Object)(0xc0000a2b40)}},43}

Parse

Using AI Code Generation

1import (2type Args struct {3}4func main() {5    args := Args{}6    arg.MustParse(&args)7    fmt.Println(args.Name)8    fmt.Println(args.Age)9}10import (11type Args struct {12}13func main() {14    args := Args{}15    arg.MustParse(&args)16    fmt.Println(args.Name)17    fmt.Println(args.Age)18}19import (20type Args struct {21}22func main() {23    args := Args{}24    arg.MustParse(&args)25    fmt.Println(args.Name)26    fmt.Println(args.Age)27}

Parse

Using AI Code Generation

1import (2func main() {3    t := template.Must(template.New("letter").Parse(`{{.Name}}`))4    type Recipient struct {5    }6    r := Recipient{Name: "John"}7    err := t.Execute(os.Stdout, r)8    if err != nil {9        log.Println("executing template:", err)10    }11}12import (13func main() {14    t := template.Must(template.New("letter").Parse(`{{.Name}}`))15    type Recipient struct {16    }17    r := Recipient{Name: "John"}18    err := t.Execute(os.Stdout, r)19    if err != nil {20        log.Println("executing template:", err)21    }22    fmt.Println()23}24import (25func main() {26    t := template.Must(template.New("letter").Parse(`{{.Name}}`))27    type Recipient struct {28    }29    r := Recipient{Name: "John"}30    err := t.Execute(os.Stdout, r)31    if err != nil {32        log.Println("executing template:", err)33    }34    fmt.Println()35    err = t.Execute(os.Stdout, r)36    if err != nil {37        log.Println("executing template:", err)

Parse

Using AI Code Generation

1import (2func main() {3	app := cli.NewApp()4	app.Action = func(c *cli.Context) error {5		fmt.Println("Hello World")6	}7	app.Run(os.Args)8}9   --help, -h  show help (default: false)10   --help, -h  show help (default: false)11   --help, -h  show help (default: false)12   --help, -h  show help (default: false)

Parse

Using AI Code Generation

1import (2func main() {3    p := busybox.NewProg()4    err := p.Parse(os.Args[1:])5    if err != nil {6        fmt.Println("Parse error: ", err)7    }8    fmt.Println(p.String())9}10import (11func main() {12    p := busybox.NewProg()13    err := p.Parse(os.Args[1:])14    if err != nil {15        fmt.Println("Parse error: ", err)16    }17    fmt.Println(p.String())18}19import (20func main() {21    p := busybox.NewProg()22    err := p.Parse(os.Args[1:])23    if err != nil {24        fmt.Println("Parse error: ", err)25    }26    fmt.Println(p.String())27}28import (29func main() {30    p := busybox.NewProg()31    err := p.Parse(os.Args[1:])32    if err != nil {33        fmt.Println("Parse error: ", err)34    }35    fmt.Println(p.String())36}37import (38func main() {39    p := busybox.NewProg()40    err := p.Parse(os.Args[1:])41    if err != nil {42        fmt.Println("Parse error: ", err)43    }44    fmt.Println(p.String())45}46import (

Parse

Using AI Code Generation

1import (2func main() {3	fmt.Println("This is 2.go")4	prog.Parse()5}6import (7func Parse() {8	fmt.Println("This is prog.go")9}10import (11func main() {12	fmt.Println("This is 3.go")13	prog.Parse()14}15import (16func Parse() {17	fmt.Println("This is prog.go")18}19import (20func main() {21	fmt.Println("This is 1.go")22	prog.Parse()23}24import (25func main() {26	fmt.Println("This is 2.go")27	prog.Parse()28}29import (30func main() {31	fmt.Println("This is 3.go")32	prog.Parse()33}34In the above code, we are importing the package prog in 1.go, 2.go, and 3.go. The prog package contains the Parse() method. When we run the

Parse

Using AI Code Generation

1func main() {2    p := prog.Parse()3    fmt.Println("p: ", p)4}5import (6type Prog struct {7}8func Parse() Prog {9    fmt.Println("Enter name: ")10    fmt.Scan(&p.Name)11    fmt.Println("Enter age: ")12    fmt.Scan(&p.Age)13}14func (p *Prog) String() string {15    return fmt.Sprintf("Name: %s, Age: %d", p.Name, p.Age)16}

Parse

Using AI Code Generation

1import (2func main() {3	prog.Parse()4	fmt.Println("value of the variable is", prog.Var)5}6The init method is called automatically when the package is imported in the file which is using the package. The init method is

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