Examples with ExprStatement com.google.api.generator.engine.ast.ExprStatement used on opensource projects

Example 1 with ExprStatement

use of com.google.api.generator.engine.ast.ExprStatement in project gapic-generator-java by googleapis.

the class AbstractTransportServiceStubClassComposer method createConstructorMethods.

protected List<MethodDefinition> createConstructorMethods(GapicContext context, Service service, TypeStore typeStore, Map<String, VariableExpr> classMemberVarExprs, Map<String, VariableExpr> callableClassMemberVarExprs, Map<String, VariableExpr> protoMethodNameToDescriptorVarExprs, List<Statement> classStatements) {
    TypeNode stubSettingsType = typeStore.get(getTransportContext().classNames().getServiceStubSettingsClassName(service));
    VariableExpr settingsVarExpr = VariableExpr.withVariable(Variable.builder().setName("settings").setType(stubSettingsType).build());
    TypeNode clientContextType = FIXED_TYPESTORE.get("ClientContext");
    VariableExpr clientContextVarExpr = VariableExpr.withVariable(Variable.builder().setName("clientContext").setType(clientContextType).build());
    VariableExpr callableFactoryVarExpr = VariableExpr.withVariable(Variable.builder().setName("callableFactory").setType(getTransportContext().stubCallableFactoryType()).build());
    TypeNode thisClassType = typeStore.get(getTransportContext().classNames().getTransportServiceStubClassName(service));
    TypeNode ioExceptionType = TypeNode.withReference(ConcreteReference.withClazz(IOException.class));
    BiFunction<List<VariableExpr>, List<Statement>, MethodDefinition> ctorMakerFn = (args, body) -> MethodDefinition.constructorBuilder().setScope(ScopeNode.PROTECTED).setReturnType(thisClassType).setHeaderCommentStatements(Arrays.asList(createProtectedCtorComment(service))).setArguments(args.stream().map(v -> v.toBuilder().setIsDecl(true).build()).collect(Collectors.toList())).setThrowsExceptions(Arrays.asList(ioExceptionType)).setBody(body).build();
    // First constructor method.
    MethodDefinition firstCtor = ctorMakerFn.apply(Arrays.asList(settingsVarExpr, clientContextVarExpr), Arrays.asList(ExprStatement.withExpr(ReferenceConstructorExpr.thisBuilder().setType(thisClassType).setArguments(settingsVarExpr, clientContextVarExpr, NewObjectExpr.builder().setType(typeStore.get(getTransportContext().classNames().getTransportServiceCallableFactoryClassName(service))).build()).build())));
    Expr thisExpr = ValueExpr.withValue(ThisObjectValue.withType(typeStore.get(getTransportContext().classNames().getTransportServiceStubClassName(service))));
    // Body of the second constructor method.
    List<Statement> secondCtorStatements = new ArrayList<>();
    List<Expr> secondCtorExprs = new ArrayList<>();
    secondCtorExprs.add(AssignmentExpr.builder().setVariableExpr(classMemberVarExprs.get("callableFactory").toBuilder().setExprReferenceExpr(thisExpr).build()).setValueExpr(callableFactoryVarExpr).build());
    VariableExpr operationsStubClassVarExpr = classMemberVarExprs.get(getTransportContext().transportOperationsStubNames().get(0));
    // TODO: refactor this
    if (generateOperationsStubLogic(service)) {
        secondCtorExprs.addAll(createOperationsStubInitExpr(service, thisExpr, operationsStubClassVarExpr, clientContextVarExpr, callableFactoryVarExpr));
    }
    secondCtorStatements.addAll(secondCtorExprs.stream().map(ExprStatement::withExpr).collect(Collectors.toList()));
    secondCtorExprs.clear();
    secondCtorStatements.add(EMPTY_LINE_STATEMENT);
    // Transport settings local variables.
    Map<String, VariableExpr> javaStyleMethodNameToTransportSettingsVarExprs = service.methods().stream().collect(Collectors.toMap(m -> JavaStyle.toLowerCamelCase(m.name()), m -> VariableExpr.withVariable(Variable.builder().setName(String.format("%sTransportSettings", JavaStyle.toLowerCamelCase(m.name()))).setType(TypeNode.withReference(ConcreteReference.builder().setClazz(getTransportContext().callSettingsClass()).setGenerics(Arrays.asList(m.inputType().reference(), m.outputType().reference())).build())).build())));
    secondCtorExprs.addAll(service.methods().stream().map(m -> createTransportSettingsInitExpr(m, javaStyleMethodNameToTransportSettingsVarExprs.get(JavaStyle.toLowerCamelCase(m.name())), protoMethodNameToDescriptorVarExprs.get(m.name()), classStatements)).collect(Collectors.toList()));
    secondCtorStatements.addAll(secondCtorExprs.stream().map(ExprStatement::withExpr).collect(Collectors.toList()));
    secondCtorExprs.clear();
    secondCtorStatements.add(EMPTY_LINE_STATEMENT);
    // Initialize <method>Callable variables.
    secondCtorExprs.addAll(callableClassMemberVarExprs.entrySet().stream().map(e -> createCallableInitExpr(context, service, e.getKey(), e.getValue(), callableFactoryVarExpr, settingsVarExpr, clientContextVarExpr, operationsStubClassVarExpr, thisExpr, javaStyleMethodNameToTransportSettingsVarExprs)).collect(Collectors.toList()));
    secondCtorStatements.addAll(secondCtorExprs.stream().map(ExprStatement::withExpr).collect(Collectors.toList()));
    secondCtorExprs.clear();
    secondCtorStatements.add(EMPTY_LINE_STATEMENT);
    secondCtorStatements.addAll(createLongRunningClient(service, typeStore));
    // Instantiate backgroundResources.
    MethodInvocationExpr getBackgroundResourcesMethodExpr = MethodInvocationExpr.builder().setExprReferenceExpr(clientContextVarExpr).setMethodName("getBackgroundResources").build();
    VariableExpr backgroundResourcesVarExpr = classMemberVarExprs.get("backgroundResources");
    secondCtorExprs.add(AssignmentExpr.builder().setVariableExpr(backgroundResourcesVarExpr.toBuilder().setExprReferenceExpr(thisExpr).build()).setValueExpr(NewObjectExpr.builder().setType(FIXED_TYPESTORE.get("BackgroundResourceAggregation")).setArguments(Arrays.asList(getBackgroundResourcesMethodExpr)).build()).build());
    secondCtorStatements.addAll(secondCtorExprs.stream().map(ExprStatement::withExpr).collect(Collectors.toList()));
    secondCtorExprs.clear();
    // Second constructor method.
    MethodDefinition secondCtor = ctorMakerFn.apply(Arrays.asList(settingsVarExpr, clientContextVarExpr, callableFactoryVarExpr), secondCtorStatements);
    return Arrays.asList(firstCtor, secondCtor);
}

Example 2 with ExprStatement

use of com.google.api.generator.engine.ast.ExprStatement in project gapic-generator-java by googleapis.

the class JavaWriterVisitorTest method createForStatement.

private static ForStatement createForStatement() {
    Expr collectionExpr = MethodInvocationExpr.builder().setMethodName("getSomeStrings").build();
    ExprStatement assignExprStatement = ExprStatement.withExpr(createAssignmentExpr("aBool", "false", TypeNode.BOOLEAN));
    List<Statement> body = Arrays.asList(assignExprStatement);
    return ForStatement.builder().setLocalVariableExpr(createVariableDeclExpr("str", TypeNode.STRING)).setCollectionExpr(collectionExpr).setBody(body).build();
}

Example 3 with ExprStatement

use of com.google.api.generator.engine.ast.ExprStatement in project gapic-generator-java by googleapis.

the class ImportWriterVisitorTest method writeAnonymousClassExprImports.

@Test
public void writeAnonymousClassExprImports() {
    // [Constructing] Function<List<IOException>, MethodDefinition>
    ConcreteReference exceptionListRef = ConcreteReference.builder().setClazz(List.class).setGenerics(Arrays.asList(ConcreteReference.withClazz(IOException.class))).build();
    ConcreteReference methodDefinitionRef = ConcreteReference.withClazz(MethodDefinition.class);
    ConcreteReference ref = ConcreteReference.builder().setClazz(Function.class).setGenerics(Arrays.asList(exceptionListRef, methodDefinitionRef)).build();
    TypeNode type = TypeNode.withReference(ref);
    // [Constructing] HashMap<String, Integer> map;
    ConcreteReference mapRef = ConcreteReference.builder().setClazz(HashMap.class).setGenerics(Arrays.asList(ConcreteReference.withClazz(String.class), ConcreteReference.withClazz(Integer.class))).build();
    VariableExpr mapExpr = VariableExpr.builder().setVariable(Variable.builder().setName("map").setType(TypeNode.withReference(mapRef)).build()).setIsDecl(true).build();
    ExprStatement exprStatement = ExprStatement.withExpr(mapExpr);
    // [Constructing] an input argument whose type is `List<IOException>`
    VariableExpr arg = VariableExpr.builder().setVariable(Variable.builder().setName("arg").setType(TypeNode.withReference(exceptionListRef)).build()).setIsDecl(true).build();
    // [Constructing] a return variable expression whose type is `MethodDefinition`
    VariableExpr returnArg = VariableExpr.builder().setVariable(Variable.builder().setName("returnArg").setType(TypeNode.withReference(methodDefinitionRef)).build()).build();
    MethodDefinition method = MethodDefinition.builder().setScope(ScopeNode.PUBLIC).setReturnType(TypeNode.withReference(methodDefinitionRef)).setArguments(Arrays.asList(arg)).setReturnExpr(returnArg).setName("apply").build();
    AnonymousClassExpr anonymousClassExpr = AnonymousClassExpr.builder().setType(type).setMethods(Arrays.asList(method)).setStatements(Arrays.asList(exprStatement)).build();
    anonymousClassExpr.accept(writerVisitor);
    assertEquals(LineFormatter.lines("import com.google.api.generator.engine.ast.MethodDefinition;\n", "import com.google.common.base.Function;\n", "import java.io.IOException;\n", "import java.util.HashMap;\n", "import java.util.List;\n\n"), writerVisitor.write());
}

Example 4 with ExprStatement

use of com.google.api.generator.engine.ast.ExprStatement in project gapic-generator-java by googleapis.

the class JavaWriterVisitorTest method writeAnonymousClassExpr_basic.

@Test
public void writeAnonymousClassExpr_basic() {
    ConcreteReference ref = ConcreteReference.withClazz(Runnable.class);
    TypeNode type = TypeNode.withReference(ref);
    AssignmentExpr assignmentExpr = createAssignmentExpr("foobar", "false", TypeNode.BOOLEAN);
    ExprStatement statement = ExprStatement.withExpr(assignmentExpr);
    MethodDefinition method = MethodDefinition.builder().setScope(ScopeNode.PUBLIC).setReturnType(TypeNode.VOID).setName("run").setIsOverride(true).setBody(Arrays.asList(statement)).build();
    AnonymousClassExpr anonymousClassExpr = AnonymousClassExpr.builder().setType(type).setMethods(Arrays.asList(method)).build();
    anonymousClassExpr.accept(writerVisitor);
    assertEquals(LineFormatter.lines("new Runnable() {\n", "@Override\n", "public void run() {\n", "boolean foobar = false;\n}\n\n}"), writerVisitor.write());
}

Example 5 with ExprStatement

use of com.google.api.generator.engine.ast.ExprStatement in project gapic-generator-java by googleapis.

the class JavaWriterVisitorTest method writeLambdaExpr_body.

@Test
public void writeLambdaExpr_body() {
    VariableExpr argVarExpr = VariableExpr.builder().setVariable(Variable.builder().setName("arg").setType(TypeNode.INT).build()).build();
    VariableExpr fooVarExpr = VariableExpr.builder().setVariable(Variable.builder().setName("foo").setType(TypeNode.INT).build()).build();
    ExprStatement statement = ExprStatement.withExpr(AssignmentExpr.builder().setVariableExpr(fooVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(ValueExpr.builder().setValue(PrimitiveValue.builder().setType(TypeNode.INT).setValue("1").build()).build()).build());
    LambdaExpr lambdaExpr = LambdaExpr.builder().setArguments(argVarExpr.toBuilder().setIsDecl(true).build()).setReturnExpr(ValueExpr.withValue(StringObjectValue.withValue("foo"))).setBody(Arrays.asList(statement)).build();
    lambdaExpr.accept(writerVisitor);
    assertEquals("arg -> {\nint foo = 1;\nreturn \"foo\";\n}", writerVisitor.write());
}