How to use TestTransform method of compiler Package

Best K6 code snippet using compiler.TestTransform

transform_test.go

Source:transform_test.go

1package transform_test2// This file defines some helper functions for testing transforms.3import (4	"flag"5	"go/token"6	"go/types"7	"io/ioutil"8	"os"9	"path/filepath"10	"strings"11	"testing"12	"github.com/tinygo-org/tinygo/compileopts"13	"github.com/tinygo-org/tinygo/compiler"14	"github.com/tinygo-org/tinygo/loader"15	"tinygo.org/x/go-llvm"16)17var update = flag.Bool("update", false, "update transform package tests")18var defaultTestConfig = &compileopts.Config{19	Target:  &compileopts.TargetSpec{},20	Options: &compileopts.Options{Opt: "2"},21}22// testTransform runs a transformation pass on an input file (pathPrefix+".ll")23// and checks whether it matches the expected output (pathPrefix+".out.ll"). The24// output is compared with a fuzzy match that ignores some irrelevant lines such25// as empty lines.26func testTransform(t *testing.T, pathPrefix string, transform func(mod llvm.Module)) {27	// Read the input IR.28	ctx := llvm.NewContext()29	defer ctx.Dispose()30	buf, err := llvm.NewMemoryBufferFromFile(pathPrefix + ".ll")31	os.Stat(pathPrefix + ".ll") // make sure this file is tracked by `go test` caching32	if err != nil {33		t.Fatalf("could not read file %s: %v", pathPrefix+".ll", err)34	}35	mod, err := ctx.ParseIR(buf)36	if err != nil {37		t.Fatalf("could not load module:\n%v", err)38	}39	defer mod.Dispose()40	// Perform the transform.41	transform(mod)42	// Check for any incorrect IR.43	err = llvm.VerifyModule(mod, llvm.PrintMessageAction)44	if err != nil {45		t.Fatal("IR verification failed")46	}47	// Get the output from the test and filter some irrelevant lines.48	actual := mod.String()49	actual = actual[strings.Index(actual, "\ntarget datalayout = ")+1:]50	if *update {51		err := ioutil.WriteFile(pathPrefix+".out.ll", []byte(actual), 0666)52		if err != nil {53			t.Error("failed to write out new output:", err)54		}55	} else {56		// Read the expected output IR.57		out, err := ioutil.ReadFile(pathPrefix + ".out.ll")58		if err != nil {59			t.Fatalf("could not read output file %s: %v", pathPrefix+".out.ll", err)60		}61		// See whether the transform output matches with the expected output IR.62		expected := string(out)63		if !fuzzyEqualIR(expected, actual) {64			t.Logf("output does not match expected output:\n%s", actual)65			t.Fail()66		}67	}68}69// fuzzyEqualIR returns true if the two LLVM IR strings passed in are roughly70// equal. That means, only relevant lines are compared (excluding comments71// etc.).72func fuzzyEqualIR(s1, s2 string) bool {73	lines1 := filterIrrelevantIRLines(strings.Split(s1, "\n"))74	lines2 := filterIrrelevantIRLines(strings.Split(s2, "\n"))75	if len(lines1) != len(lines2) {76		return false77	}78	for i, line1 := range lines1 {79		line2 := lines2[i]80		if line1 != line2 {81			return false82		}83	}84	return true85}86// filterIrrelevantIRLines removes lines from the input slice of strings that87// are not relevant in comparing IR. For example, empty lines and comments are88// stripped out.89func filterIrrelevantIRLines(lines []string) []string {90	var out []string91	for _, line := range lines {92		line = strings.Split(line, ";")[0]    // strip out comments/info93		line = strings.TrimRight(line, "\r ") // drop '\r' on Windows and remove trailing spaces from comments94		if line == "" {95			continue96		}97		if strings.HasPrefix(line, "source_filename = ") {98			continue99		}100		out = append(out, line)101	}102	return out103}104// compileGoFileForTesting compiles the given Go file to run tests against.105// Only the given Go file is compiled (no dependencies) and no optimizations are106// run.107// If there are any errors, they are reported via the *testing.T instance.108func compileGoFileForTesting(t *testing.T, filename string) llvm.Module {109	target, err := compileopts.LoadTarget(&compileopts.Options{GOOS: "linux", GOARCH: "386"})110	if err != nil {111		t.Fatal("failed to load target:", err)112	}113	config := &compileopts.Config{114		Options: &compileopts.Options{},115		Target:  target,116	}117	compilerConfig := &compiler.Config{118		Triple:             config.Triple(),119		GOOS:               config.GOOS(),120		GOARCH:             config.GOARCH(),121		CodeModel:          config.CodeModel(),122		RelocationModel:    config.RelocationModel(),123		Scheduler:          config.Scheduler(),124		AutomaticStackSize: config.AutomaticStackSize(),125		Debug:              true,126	}127	machine, err := compiler.NewTargetMachine(compilerConfig)128	if err != nil {129		t.Fatal("failed to create target machine:", err)130	}131	defer machine.Dispose()132	// Load entire program AST into memory.133	lprogram, err := loader.Load(config, filename, config.ClangHeaders, types.Config{134		Sizes: compiler.Sizes(machine),135	})136	if err != nil {137		t.Fatal("failed to create target machine:", err)138	}139	err = lprogram.Parse()140	if err != nil {141		t.Fatal("could not parse", err)142	}143	// Compile AST to IR.144	program := lprogram.LoadSSA()145	pkg := lprogram.MainPkg()146	mod, errs := compiler.CompilePackage(filename, pkg, program.Package(pkg.Pkg), machine, compilerConfig, false)147	if errs != nil {148		for _, err := range errs {149			t.Error(err)150		}151		t.FailNow()152	}153	return mod154}155// getPosition returns the position information for the given value, as far as156// it is available.157func getPosition(val llvm.Value) token.Position {158	if !val.IsAInstruction().IsNil() {159		loc := val.InstructionDebugLoc()160		if loc.IsNil() {161			return token.Position{}162		}163		file := loc.LocationScope().ScopeFile()164		return token.Position{165			Filename: filepath.Join(file.FileDirectory(), file.FileFilename()),166			Line:     int(loc.LocationLine()),167			Column:   int(loc.LocationColumn()),168		}169	} else if !val.IsAFunction().IsNil() {170		loc := val.Subprogram()171		if loc.IsNil() {172			return token.Position{}173		}174		file := loc.ScopeFile()175		return token.Position{176			Filename: filepath.Join(file.FileDirectory(), file.FileFilename()),177			Line:     int(loc.SubprogramLine()),178		}179	} else {180		return token.Position{}181	}182}...

compiler_test.go

Source:compiler_test.go

...7	compiler, err := New()8	assert.NoError(t, err)9	assert.NotNil(t, compiler)10}11func TestTransform(t *testing.T) {12	var script = `a => a + 100;`13	var result = `"use strict";14(function (a) {15  return a + 100;16});`17	compiler, _ := New()18	out, err := compiler.Transform(script)19	assert.NoError(t, err)20	assert.Equal(t, out, result)21}...

TestTransform

Using AI Code Generation

1import (2func main() {3    f, err := parser.ParseFile(fset, "1.go", nil, 0)4    if err != nil {5    }6    fmt.Println("AST:")7    ast.Print(fset, f)8}9import (10func main() {11    f, err := parser.ParseFile(fset, "2.go", nil, 0)12    if err != nil {13    }14    fmt.Println("AST:")15    ast.Print(fset, f)16}17import (18func main() {19    f, err := parser.ParseFile(fset, "3.go", nil, 0)20    if err != nil {21    }22    fmt.Println("AST:")23    ast.Print(fset, f)24}25import (

TestTransform

Using AI Code Generation

1import (2func main() {3    m := ir.NewModule()4    f := m.NewFunc("add", types.I32, ir.NewParam("x", types.I32), ir.NewParam("y", types.I32))5    entry := f.NewBlock("entry")6    sum := entry.NewAdd(entry.Params[0], entry.Params[1])7    entry.NewRet(sum)8    fmt.Println(m)9    fmt.Println(m)10    m1 := ir.NewModule()11    f1 := m1.NewFunc("add", types.I32, ir.NewParam("x", types.I32), ir.NewParam("y", types.I32))12    entry1 := f1.NewBlock("entry")13    sum1 := entry1.NewAdd(entry1.Params[0], entry1.Params[1])14    entry1.NewRet(sum1)15    fmt.Println(m1)16    fmt.Println(m1)17    m2 := ir.NewModule()

TestTransform

Using AI Code Generation

1import (2func TestTransform() {3	cfg := &packages.Config{Mode: packages.LoadAllSyntax}4	pkgs, err := packages.Load(cfg, "github.com/rajdeepd/transformer/test")5	if err != nil {6		log.Fatal(err)7	}8	if packages.PrintErrors(pkgs) > 0 {9		os.Exit(1)10	}11	for _, pkg := range pkgs {12		files = append(files, pkg.Syntax...)13	}14	info := &types.Info{15		Defs: make(map[*ast.Ident]types.Object),16	}17	_, err = types.Check("pkg", fset, files, info)18	if err != nil {19		log.Fatal(err)20	}21	transform(fset, files, info)22	for _, file := range files {23		err = printer.Fprint(os.Stdout, fset, file)24		if err != nil {25			log.Fatal(err)26		}27	}28}29func transform(fset *token.FileSet, files []*ast.File, info *types.Info) {30	for _, file := range files {31		for _, decl := range file.Decls {32			if fn, _ = decl.(*ast.FuncDecl); fn != nil {33				if fn.Name.Name == "main" {34				}35			}36		}37		if fn != nil {38		}39	}40	ast.Inspect(fn.Body, func(node ast.Node) bool {41		if call, _ := node.(*ast.CallExpr); call != nil {42			if sel, _ := call.Fun.(*ast.SelectorExpr); sel != nil {43				if x, _ := sel.X.(*ast.Ident); x

TestTransform

Using AI Code Generation

1import (2type compiler struct {3}4func main() {5	fset := token.NewFileSet()6	c.files, err = parser.ParseDir(fset, "C:/Users/abhishek/Desktop/GoLang/GoLangTest/src/GoLangTest", nil, 0)7	if err != nil {8		log.Fatal(err)9	}10	for _, astfile := range c.files {11	}

TestTransform

Using AI Code Generation

1import (2func main() {3	vm := otto.New()4	vm.Run(`5		var compiler = require('./compiler');6		var code = "function test() { return 1; }";7		var result = compiler.TestTransform(code);8		console.log(result);9}10var compiler = (function () {11	var TestTransform = function (code) {12		return code;13	}14	return {15	}16})();17module.exports = compiler;

TestTransform

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Input string: ", s)4    fmt.Println("Output string: ", compiler.TestTransform(s))5}6import "fmt"7func main() {8    fmt.Println("Input string: ", s)9    fmt.Println("Output string: ", compiler.TestTransform(s))10}11import "fmt"12func main() {13    fmt.Println("Input string: ", s)14    fmt.Println("Output string: ", compiler.TestTransform(s))15}16import "fmt"17func main() {18    fmt.Println("Input string: ", s)19    fmt.Println("Output string: ", compiler.TestTransform(s))20}21import "fmt"22func main() {23    fmt.Println("Input string: ", s)24    fmt.Println("Output string: ", compiler.TestTransform(s))25}26import "fmt"27func main() {28    fmt.Println("Input string: ", s)29    fmt.Println("Output string: ", compiler.TestTransform(s))30}31import "fmt"32func main() {33    fmt.Println("Input string: ", s)34    fmt.Println("Output string: ", compiler.TestTransform(s))35}36import "fmt"37func main() {

TestTransform

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	c := compiler.NewCompiler()5	c.TestTransform()6}7import (8func main() {9	fmt.Println("Hello World")10	c := compiler.NewCompiler()11	c.TestTransform()12}13import (14func (c *Compiler) TestTransform() {15	fmt.Println("Hello World")16}

TestTransform

Using AI Code Generation

1import (2func main() {3	fmt.Println("string s is", s)4	fmt.Println("string s memory address is", unsafe.Pointer(&s))5	fmt.Println("string s memory address is", unsafe.Pointer((*reflect.StringHeader)(unsafe.Pointer(&s)).Data))6}

TestTransform

Using AI Code Generation

1import (2func main() {3	c := compiler.NewCompiler()4	fmt.Println(c.TestTransform("1 + 2"))5	fmt.Println(c.TestTransform("1 + 2 * 3"))6	fmt.Println(c.TestTransform("(1 + 2) * 3"))7	fmt.Println(c.TestTransform("1 * 2 + 3"))8	fmt.Println(c.TestTransform("1 * (2 + 3)"))9	fmt.Println(c.TestTransform("1 + 2 + 3"))10	fmt.Println(c.TestTransform("(1 + 2) + 3"))11	fmt.Println(c.TestTransform("1 + (2 + 3)"))12	fmt.Println(c.TestTransform("1 - 2 - 3"))13	fmt.Println(c.TestTransform("(1 - 2) - 3"))14	fmt.Println(c.TestTransform("1 - (2 - 3)"))15	fmt.Println(c.TestTransform("(1 + 2) * (3 + 4)"))16	fmt.Println(c.TestTransform("1 * (2 + 3) * 4"))17	fmt.Println(c.TestTransform("1 * (2 + 3 * 4)"))18	fmt.Println(c.TestTransform("1 * 2 + 3 * 4"))19	fmt.Println(c.TestTransform("1 + 2 * 3 + 4"))20	fmt.Println(c.TestTransform("1 * (2 + 3 * 4) + 5"))21	fmt.Println(c.TestTransform("1 * (2 + 3 * 4 + 5)"))22	fmt.Println(c.TestTransform("1 * (2 + 3 * 4 + 5) + 6"))23	fmt.Println(c.TestTransform("1 * (2 + 3 * 4 + 5) + 6 * 7

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