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

Example 56 with Expr

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

the class ServiceClientTestClassComposer method createRpcExceptionTestMethod.

@Override
protected MethodDefinition createRpcExceptionTestMethod(Method method, Service service, List<MethodArgument> methodSignature, int variantIndex, Map<String, VariableExpr> classMemberVarExprs, Map<String, ResourceName> resourceNames, Map<String, Message> messageTypes) {
    VariableExpr exceptionVarExpr = VariableExpr.withVariable(Variable.builder().setType(FIXED_GRPC_TYPESTORE.get("StatusRuntimeException")).setName("exception").build());
    // First two assignment lines.
    Expr exceptionAssignExpr = AssignmentExpr.builder().setVariableExpr(exceptionVarExpr.toBuilder().setIsDecl(true).build()).setValueExpr(NewObjectExpr.builder().setType(FIXED_GRPC_TYPESTORE.get("StatusRuntimeException")).setArguments(EnumRefExpr.builder().setType(GRPC_STATUS_TYPE).setName("INVALID_ARGUMENT").build()).build()).build();
    Expr addExceptionExpr = MethodInvocationExpr.builder().setExprReferenceExpr(classMemberVarExprs.get(getMockServiceVarName(service))).setMethodName("addException").setArguments(exceptionVarExpr).build();
    // Try-catch block. Build the method call.
    String exceptionTestMethodName = String.format("%sExceptionTest%s", JavaStyle.toLowerCamelCase(method.name()), variantIndex > 0 ? variantIndex + 1 : "");
    boolean isStreaming = !method.stream().equals(Method.Stream.NONE);
    List<Statement> methodBody = new ArrayList<>();
    methodBody.add(ExprStatement.withExpr(exceptionAssignExpr));
    methodBody.add(ExprStatement.withExpr(addExceptionExpr));
    if (isStreaming) {
        methodBody.addAll(createStreamingRpcExceptionTestStatements(method, classMemberVarExprs, resourceNames, messageTypes));
    } else {
        methodBody.addAll(createRpcExceptionTestStatements(method, methodSignature, classMemberVarExprs, resourceNames, messageTypes));
    }
    return MethodDefinition.builder().setAnnotations(Arrays.asList(TEST_ANNOTATION)).setScope(ScopeNode.PUBLIC).setReturnType(TypeNode.VOID).setName(exceptionTestMethodName).setThrowsExceptions(Arrays.asList(TypeNode.withExceptionClazz(Exception.class))).setBody(methodBody).build();
}

Example 57 with Expr

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

the class JavaWriterVisitorTest method writeThrowExpr_messageExpr.

@Test
public void writeThrowExpr_messageExpr() {
    TypeNode npeType = TypeNode.withExceptionClazz(NullPointerException.class);
    Expr messageExpr = MethodInvocationExpr.builder().setMethodName("foobar").setReturnType(TypeNode.STRING).build();
    ThrowExpr throwExpr = ThrowExpr.builder().setType(npeType).setMessageExpr(messageExpr).build();
    throwExpr.accept(writerVisitor);
    assertEquals("throw new NullPointerException(foobar())", writerVisitor.write());
}

Example 58 with Expr

use of com.google.api.generator.engine.ast.Expr 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 59 with Expr

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

the class JavaWriterVisitorTest method writeThrowExpr_basicThrowExpr.

@Test
public void writeThrowExpr_basicThrowExpr() {
    Expr exprToThrow = MethodInvocationExpr.builder().setStaticReferenceType(TypeNode.withReference(ConcreteReference.withClazz(Statement.class))).setMethodName("createException").setReturnType(TypeNode.withExceptionClazz(Exception.class)).build();
    ThrowExpr throwExpr = ThrowExpr.builder().setThrowExpr(exprToThrow).build();
    throwExpr.accept(writerVisitor);
    assertEquals("throw Statement.createException()", writerVisitor.write());
}

Example 60 with Expr

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

the class JavaWriterVisitorTest method writeForStatement.

@Test
public void writeForStatement() {
    AssignmentExpr assignExpr = createAssignmentExpr("x", "3", TypeNode.INT);
    Statement assignExprStatement = ExprStatement.withExpr(assignExpr);
    List<Statement> body = Arrays.asList(assignExprStatement, assignExprStatement);
    VariableExpr varDeclExpr = createVariableDeclExpr("str", TypeNode.STRING);
    Expr collectionExpr = MethodInvocationExpr.builder().setMethodName("getSomeStrings").build();
    ForStatement forStatement = ForStatement.builder().setLocalVariableExpr(varDeclExpr).setCollectionExpr(collectionExpr).setBody(body).build();
    forStatement.accept(writerVisitor);
    assertEquals(String.format("%s%s%s%s", "for (String str : getSomeStrings()) {\n", "int x = 3;\n", "int x = 3;\n", "}\n"), writerVisitor.write());
}