Golang MojomFileGraph.Decode方法代碼示例

func main() {
	inputBytes, err := ioutil.ReadAll(os.Stdin)
	if err != nil {
		log.Fatalf("failed to read: %v", err)
	}

	decoder := bindings.NewDecoder(inputBytes, nil)
	fileGraph := mojom_files.MojomFileGraph{}
	if err := fileGraph.Decode(decoder); err != nil {
		log.Fatalf("Failed to decode file graph: %v", err)
	}

	for fileKey := range fileGraph.Files {
		printFile(fileGraph, fileKey)
	}
}

//.........這裏部分代碼省略.........
	};`

		contentsB := `
	module a.b.c;
	struct FooB{
	};`

		importingName := "myLittleFriend" // File A is importing File B using this name.
		topLevel := false                 // Simulate the File B is not a top-level file.
		test.addTestCase("a.b.c", contentsA, contentsB, topLevel, importingName)

		// DeclaredMojomObjects
		test.expectedFileA().DeclaredMojomObjects.Structs = &[]string{"TYPE_KEY:a.b.c.FooA"}
		test.expectedFileB().DeclaredMojomObjects.Structs = &[]string{"TYPE_KEY:a.b.c.FooB"}

		// struct FooA
		test.expectedGraph().ResolvedTypes["TYPE_KEY:a.b.c.FooA"] = &mojom_types.UserDefinedTypeStructType{mojom_types.MojomStruct{
			DeclData: newDeclData(test.expectedFileA().FileName, "FooA", "a.b.c.FooA"),
			Fields:   []mojom_types.StructField{}}}

		// struct FooB
		test.expectedGraph().ResolvedTypes["TYPE_KEY:a.b.c.FooB"] = &mojom_types.UserDefinedTypeStructType{mojom_types.MojomStruct{
			DeclData: newDeclData(test.expectedFileB().FileName, "FooB", "a.b.c.FooB"),
			Fields:   []mojom_types.StructField{}}}

		test.endTestCase()
	}

	////////////////////////////////////////////////////////////
	// Execute all of the test cases.
	////////////////////////////////////////////////////////////
	for i, c := range test.cases {
		descriptor := mojom.NewMojomDescriptor()

		// Parse file A.
		parserA := parser.MakeParser(c.expectedFileA.FileName, *c.expectedFileA.SpecifiedFileName, c.mojomContentsA, descriptor, nil)
		parserA.Parse()
		if !parserA.OK() {
			t.Errorf("Parsing error for %s: %s", c.expectedFileA.FileName, parserA.GetError().Error())
			continue
		}
		mojomFileA := parserA.GetMojomFile()

		// Parse file B.
		var importedFrom *mojom.MojomFile
		if !c.topLevel {
			// If file B is not a top-level file then when the parser for it is constructed we give it a non-nil |importedFrom|.
			importedFrom = mojomFileA
		}
		parserB := parser.MakeParser(c.expectedFileB.FileName, *c.expectedFileB.SpecifiedFileName, c.mojomContentsB, descriptor, importedFrom)
		parserB.Parse()
		if !parserB.OK() {
			t.Errorf("Parsing error for %s: %s", c.expectedFileB.FileName, parserB.GetError().Error())
			continue
		}
		mojomFileB := parserB.GetMojomFile()

		// Set the canonical file name for the imported files. In real operation
		// this step is done in parser_driver.go when each of the imported files are parsed.
		if c.importingName != "" {
			// The call to SetCanonicalImportName does a lookup in a map for a key corresponding to the
			// first argument. Thus here we are also testing that |importingName| is in fact string
			// that was parsed from the .mojom file.
			mojomFileA.SetCanonicalImportName(c.importingName, mojomFileB.CanonicalFileName)
		}

		// Resolve
		if err := descriptor.Resolve(); err != nil {
			t.Errorf("Resolve error for case %d: %s", i, err.Error())
			continue
		}
		if err := descriptor.ComputeEnumValueIntegers(); err != nil {
			t.Errorf("ComputeEnumValueIntegers error for case %d: %s", i, err.Error())
			continue
		}
		if err := descriptor.ComputeDataForGenerators(); err != nil {
			t.Errorf("ComputeDataForGenerators error for case %d: %s", i, err.Error())
			continue
		}

		// Serialize
		EmitLineAndColumnNumbers = c.lineAndcolumnNumbers
		bytes, _, err := Serialize(descriptor, false)
		if err != nil {
			t.Errorf("Serialization error for case %d: %s", i, err.Error())
			continue
		}

		// Deserialize
		decoder := bindings.NewDecoder(bytes, nil)
		fileGraph := mojom_files.MojomFileGraph{}
		fileGraph.Decode(decoder)

		// Compare
		if err := compareFileGraphs(c.expectedGraph, &fileGraph); err != nil {
			t.Errorf("case %d:\n%s", i, err.Error())
			continue
		}
	}
}

//.........這裏部分代碼省略.........
				DeclaredOrdinal:  -1,
				DeclarationOrder: -1,
				SourceFileInfo: &mojom_types.SourceFileInfo{
					FileName: test.fileName(),
				},
				ContainedDeclarations: &mojom_types.ContainedDeclarations{
					Enums: &[]string{"TYPE_KEY:mojom.test.Foo.Hats"}},
			},
			Fields: []mojom_types.StructField{
				// field x
				{
					DeclData: test.newShortDeclData("x"),
					Type:     &mojom_types.TypeSimpleType{mojom_types.SimpleType_InT32},
				},
				// field y
				{
					DeclData:     test.newShortDeclDataA("y", &[]mojom_types.Attribute{{"min_version", &mojom_types.LiteralValueInt8Value{2}}}),
					Type:         &mojom_types.TypeStringType{mojom_types.StringType{false}},
					DefaultValue: &mojom_types.DefaultFieldValueValue{&mojom_types.ValueLiteralValue{&mojom_types.LiteralValueStringValue{"hello"}}},
				},
				// field z
				{
					DeclData: test.newShortDeclData("z"),
					Type:     &mojom_types.TypeStringType{mojom_types.StringType{true}},
				},
			},
		}}

		// enum Hats
		test.expectedGraph().ResolvedTypes["TYPE_KEY:mojom.test.Foo.Hats"] = &mojom_types.UserDefinedTypeEnumType{mojom_types.MojomEnum{
			DeclData: test.newContainedDeclData("Hats", "mojom.test.Foo.Hats", stringPointer("TYPE_KEY:mojom.test.Foo")),
			Values: []mojom_types.EnumValue{
				// Note(rudominer) It is a bug that we need to copy the enum values here.
				// See https://github.com/domokit/mojo/issues/513.
				// value TOP
				test.expectedGraph().ResolvedValues["TYPE_KEY:mojom.test.Foo.Hats.TOP"].(*mojom_types.UserDefinedValueEnumValue).Value,
				// value COWBOY
				test.expectedGraph().ResolvedValues["TYPE_KEY:mojom.test.Foo.Hats.COWBOY"].(*mojom_types.UserDefinedValueEnumValue).Value,
				// value HARD
				test.expectedGraph().ResolvedValues["TYPE_KEY:mojom.test.Foo.Hats.HARD"].(*mojom_types.UserDefinedValueEnumValue).Value,
			},
		}}

		test.endTestCase()
	}

	////////////////////////////////////////////////////////////
	// Execute all of the test cases.
	////////////////////////////////////////////////////////////
	for _, c := range test.cases {
		// Parse and resolve the mojom input.
		descriptor := mojom.NewMojomDescriptor()
		parser := parser.MakeParser(c.fileName, c.fileName, c.mojomContents, descriptor, nil)
		parser.Parse()
		if !parser.OK() {
			t.Errorf("Parsing error for %s: %s", c.fileName, parser.GetError().Error())
			continue
		}
		if err := descriptor.Resolve(); err != nil {
			t.Errorf("Resolve error for %s: %s", c.fileName, err.Error())
			continue
		}
		if err := descriptor.ComputeEnumValueIntegers(); err != nil {
			t.Errorf("ComputeEnumValueIntegers error for %s: %s", c.fileName, err.Error())
			continue
		}
		if err := descriptor.ComputeDataForGenerators(); err != nil {
			t.Errorf("ComputeDataForGenerators error for %s: %s", c.fileName, err.Error())
			continue
		}

		// Simulate setting the canonical file name for the imported files. In real operation
		// this step is done in parser_driver.go when each of the imported files are parsed.
		mojomFile := parser.GetMojomFile()
		if mojomFile.Imports != nil {
			for _, imp := range mojomFile.Imports {
				imp.CanonicalFileName = fmt.Sprintf("%s.canonical", imp.SpecifiedName)
			}
		}

		// Serialize
		EmitLineAndColumnNumbers = c.lineAndcolumnNumbers
		bytes, _, err := Serialize(descriptor, false)
		if err != nil {
			t.Errorf("Serialization error for %s: %s", c.fileName, err.Error())
			continue
		}

		// Deserialize
		decoder := bindings.NewDecoder(bytes, nil)
		fileGraph := mojom_files.MojomFileGraph{}
		fileGraph.Decode(decoder)

		// Compare
		if err := compareFileGraphs(c.expectedGraph, &fileGraph); err != nil {
			t.Errorf("%s:\n%s", c.fileName, err.Error())
			continue
		}
	}
}

//.........這裏部分代碼省略.........
				ShortName:        stringPointer("Foo"),
				FullIdentifier:   stringPointer("mojom.test.Foo"),
				DeclaredOrdinal:  -1,
				DeclarationOrder: -1,
				SourceFileInfo: &mojom_types.SourceFileInfo{
					FileName: test.fileName(),
				},
				ContainedDeclarations: &mojom_types.ContainedDeclarations{
					Enums: &[]string{"TYPE_KEY:mojom.test.Foo.Hats"}},
			},
			Fields: []mojom_types.StructField{
				// field x
				{
					DeclData: test.newDeclData("x", ""),
					Type:     &mojom_types.TypeSimpleType{mojom_types.SimpleType_InT32},
				},
				// field y
				{
					DeclData:     test.newDeclData("y", ""),
					Type:         &mojom_types.TypeStringType{mojom_types.StringType{false}},
					DefaultValue: &mojom_types.DefaultFieldValueValue{&mojom_types.ValueLiteralValue{&mojom_types.LiteralValueStringValue{"hello"}}},
				},
				// field z
				{
					DeclData: test.newDeclData("z", ""),
					Type:     &mojom_types.TypeStringType{mojom_types.StringType{true}},
				},
			},
		}}

		// enum Hats
		test.expectedGraph().ResolvedTypes["TYPE_KEY:mojom.test.Foo.Hats"] = &mojom_types.UserDefinedTypeEnumType{mojom_types.MojomEnum{
			DeclData: test.newDeclData("Hats", "mojom.test.Foo.Hats"),
			Values: []mojom_types.EnumValue{
				// Note(rudominer) It is a bug that we need to copy the enum values here.
				// See https://github.com/domokit/mojo/issues/513.
				// value TOP
				test.expectedGraph().ResolvedValues["TYPE_KEY:mojom.test.Foo.Hats.TOP"].(*mojom_types.UserDefinedValueEnumValue).Value,
				// value COWBOY
				test.expectedGraph().ResolvedValues["TYPE_KEY:mojom.test.Foo.Hats.COWBOY"].(*mojom_types.UserDefinedValueEnumValue).Value,
			},
		}}

		test.endTestCase()
	}

	////////////////////////////////////////////////////////////
	// Execute all of the test cases.
	////////////////////////////////////////////////////////////
	for _, c := range test.cases {
		// Parse and resolve the mojom input.
		descriptor := mojom.NewMojomDescriptor()
		parser := parser.MakeParser(c.fileName, c.mojomContents, descriptor)
		parser.Parse()
		if !parser.OK() {
			t.Errorf("Parsing error for %s: %s", c.fileName, parser.GetError().Error())
			continue
		}
		if err := descriptor.Resolve(); err != nil {
			t.Errorf("Resolve error for %s: %s", c.fileName, err.Error())
			continue
		}
		if err := descriptor.ComputeEnumValueIntegers(); err != nil {
			t.Errorf("ComputeEnumValueIntegers error for %s: %s", c.fileName, err.Error())
			continue
		}
		if err := descriptor.ComputeDataForGenerators(); err != nil {
			t.Errorf("ComputeDataForGenerators error for %s: %s", c.fileName, err.Error())
			continue
		}

		// Simulate setting the canonical file name for the imported files. In real operation
		// this step is done in parser_driver.go when each of the imported files are parsed.
		mojomFile := parser.GetMojomFile()
		if mojomFile.Imports != nil {
			for _, imp := range mojomFile.Imports {
				imp.CanonicalFileName = fmt.Sprintf("%s.canonical", imp.SpecifiedName)
			}
		}

		// Serialize
		EmitLineAndColumnNumbers = c.lineAndcolumnNumbers
		bytes, err := Serialize(descriptor)
		if err != nil {
			t.Errorf("Serialization error for %s: %s", c.fileName, err.Error())
			continue
		}

		// Deserialize
		decoder := bindings.NewDecoder(bytes, nil)
		fileGraph := mojom_files.MojomFileGraph{}
		fileGraph.Decode(decoder)

		// Compare
		if err := compareFileGraphs(c.expectedGraph, &fileGraph); err != nil {
			t.Errorf("%s:\n%s", c.fileName, err.Error())
			continue
		}
	}
}