Golang ParseFiles Examples

Example #1

File: interp_test.go Project: nagyistge/hm-workspace

func run(t *testing.T, dir, input string) bool {
	fmt.Printf("Input: %s\n", input)

	start := time.Now()

	var inputs []string
	for _, i := range strings.Split(input, " ") {
		inputs = append(inputs, dir+i)
	}

	imp := importer.New(&importer.Config{Build: &build.Default})
	// TODO(adonovan): use LoadInitialPackages, then un-export ParseFiles.
	files, err := importer.ParseFiles(imp.Fset, ".", inputs...)
	if err != nil {
		t.Errorf("ssa.ParseFiles(%s) failed: %s", inputs, err.Error())
		return false
	}

	// Print a helpful hint if we don't make it to the end.
	var hint string
	defer func() {
		if hint != "" {
			fmt.Println("FAIL")
			fmt.Println(hint)
		} else {
			fmt.Println("PASS")
		}
	}()

	hint = fmt.Sprintf("To dump SSA representation, run:\n%% go build code.google.com/p/go.tools/cmd/ssadump && ./ssadump -build=CFP %s\n", input)
	mainInfo := imp.LoadMainPackage(files...)

	prog := ssa.NewProgram(imp.Fset, ssa.SanityCheckFunctions)
	if err := prog.CreatePackages(imp); err != nil {
		t.Errorf("CreatePackages failed: %s", err)
		return false
	}
	prog.BuildAll()

	mainPkg := prog.Package(mainInfo.Pkg)
	mainPkg.CreateTestMainFunction() // (no-op if main already exists)

	hint = fmt.Sprintf("To trace execution, run:\n%% go build code.google.com/p/go.tools/cmd/ssadump && ./ssadump -build=C -run --interp=T %s\n", input)
	if exitCode := interp.Interpret(mainPkg, 0, inputs[0], []string{}); exitCode != 0 {
		t.Errorf("interp.Interpret(%s) exited with code %d, want zero", inputs, exitCode)
		return false
	}

	hint = "" // call off the hounds

	if false {
		fmt.Println(input, time.Since(start)) // test profiling
	}

	return true
}

Example #2

File: interp_test.go Project: Bosh-for-Cpi/bosh-2605

// CreateTestMainPackage should return nil if there were no tests.
func TestNullTestmainPackage(t *testing.T) {
	imp := importer.New(&importer.Config{Build: &build.Default})
	files, err := importer.ParseFiles(imp.Fset, ".", "testdata/b_test.go")
	if err != nil {
		t.Fatalf("ParseFiles failed: %s", err)
	}
	mainInfo := imp.CreatePackage("b", files...)
	prog := ssa.NewProgram(imp.Fset, ssa.SanityCheckFunctions)
	if err := prog.CreatePackages(imp); err != nil {
		t.Fatalf("CreatePackages failed: %s", err)
	}
	mainPkg := prog.Package(mainInfo.Pkg)
	if mainPkg.Func("main") != nil {
		t.Fatalf("unexpected main function")
	}
	if prog.CreateTestMainPackage(mainPkg) != nil {
		t.Fatalf("CreateTestMainPackage returned non-nil")
	}
}

Example #3

File: interp_test.go Project: Bosh-for-Cpi/bosh-2605

func run(t *testing.T, dir, input string, success successPredicate) bool {
	fmt.Printf("Input: %s\n", input)

	start := time.Now()

	var inputs []string
	for _, i := range strings.Split(input, " ") {
		inputs = append(inputs, dir+i)
	}

	imp := importer.New(&importer.Config{Build: &build.Default})
	// TODO(adonovan): use LoadInitialPackages, then un-export ParseFiles.
	// Then add the following packages' tests, which pass:
	// "flag", "unicode", "unicode/utf8", "testing", "log", "path".
	files, err := importer.ParseFiles(imp.Fset, ".", inputs...)
	if err != nil {
		t.Errorf("ssa.ParseFiles(%s) failed: %s", inputs, err.Error())
		return false
	}

	// Print a helpful hint if we don't make it to the end.
	var hint string
	defer func() {
		if hint != "" {
			fmt.Println("FAIL")
			fmt.Println(hint)
		} else {
			fmt.Println("PASS")
		}

		interp.CapturedOutput = nil
	}()

	hint = fmt.Sprintf("To dump SSA representation, run:\n%% go build code.google.com/p/go.tools/cmd/ssadump && ./ssadump -build=CFP %s\n", input)
	mainInfo := imp.CreatePackage(files[0].Name.Name, files...)

	if _, err := imp.LoadPackage("runtime"); err != nil {
		t.Errorf("LoadPackage(runtime) failed: %s", err)
	}

	prog := ssa.NewProgram(imp.Fset, ssa.SanityCheckFunctions)
	if err := prog.CreatePackages(imp); err != nil {
		t.Errorf("CreatePackages failed: %s", err)
		return false
	}
	prog.BuildAll()

	mainPkg := prog.Package(mainInfo.Pkg)
	if mainPkg.Func("main") == nil {
		testmainPkg := prog.CreateTestMainPackage(mainPkg)
		if testmainPkg == nil {
			t.Errorf("CreateTestMainPackage(%s) returned nil", mainPkg)
			return false
		}
		if testmainPkg.Func("main") == nil {
			t.Errorf("synthetic testmain package has no main")
			return false
		}
		mainPkg = testmainPkg
	}

	var out bytes.Buffer
	interp.CapturedOutput = &out

	hint = fmt.Sprintf("To trace execution, run:\n%% go build code.google.com/p/go.tools/cmd/ssadump && ./ssadump -build=C -run --interp=T %s\n", input)
	exitCode := interp.Interpret(mainPkg, 0, inputs[0], []string{})

	// The definition of success varies with each file.
	if err := success(exitCode, out.String()); err != nil {
		t.Errorf("interp.Interpret(%s) failed: %s", inputs, err)
		return false
	}

	hint = "" // call off the hounds

	if false {
		fmt.Println(input, time.Since(start)) // test profiling
	}

	return true
}