Examples with VarUse org.abs_models.frontend.ast.VarUse used on opensource projects

Example 6 with VarUse

use of org.abs_models.frontend.ast.VarUse in project abstools by abstools.

the class VarResolutionTest method testLocalVar.

@Test
public void testLocalVar() {
    Exp e = getSecondExp("interface I { } { I i = null; i = i; }");
    VarUse u = (VarUse) e;
    VarDecl decl = (VarDecl) u.getDecl();
    assertEquals("i", decl.getName());
}

Example 7 with VarUse

use of org.abs_models.frontend.ast.VarUse in project abstools by abstools.

the class TimeoutThread method genCode.

/**
 * Generates Erlang code in target directory, adding a last statement that
 * prints the value of the `testresult' variable.
 *
 * @return a Module Name containing a Main Block
 * @throws InternalBackendException
 */
public String genCode(Model model, File targetDir, boolean appendResultprinter) throws IOException, InterruptedException, InternalBackendException {
    if (model.hasErrors()) {
        Assert.fail(model.getErrors().getFirstError().getHelpMessage());
    }
    if (model.hasTypeErrors()) {
        Assert.fail(model.getTypeErrors().getFirstError().getHelpMessage());
    }
    MainBlock mb = model.getMainBlock();
    if (mb != null && appendResultprinter) {
        // We search for this output in the `run' method below
        mb.addStmt(new ExpressionStmt(new List<>(), new FnApp("ABS.StdLib.println", new List<>(new AddAddExp(new StringLiteral("RES="), new FnApp("ABS.StdLib.toString", new List<>(new VarUse("testresult"))))))));
    }
    new ErlangBackend().compile(model, targetDir, // use the following argument for silent compiler:
    EnumSet.noneOf(ErlangBackend.CompileOptions.class));
    if (mb == null)
        return null;
    else
        return mb.getModuleDecl().getName();
}

Example 8 with VarUse

use of org.abs_models.frontend.ast.VarUse in project abstools by abstools.

the class SchedulerChecker method checkScheduleExp.

private void checkScheduleExp(PureExp sched, ClassDecl class_decl, ASTNode<?> loc) {
    if (sched == null)
        return;
    if (!(sched instanceof FnApp)) {
        errors.add(new TypeError(loc, ErrorMessage.WRONG_SCHEDULER_ANNOTATION_TYPE, sched.getType()));
        return;
    }
    FnApp s = (FnApp) sched;
    Type scheduler_type = s.getType();
    if (s.getDecl().isUnknown()) {
        errors.add(new TypeError(loc, ErrorMessage.FUNCTION_NOT_RESOLVABLE, s.getName()));
        return;
    }
    FunctionDecl sd = (FunctionDecl) s.getDecl();
    // check scheduling function return type
    boolean schedulerTypeCorrect = scheduler_type.isDataType() && ((DataTypeType) scheduler_type).getQualifiedName().equals("ABS.Scheduler.Process");
    // check scheduling function first arg, pt.1: are we a list?
    boolean schedulerFunFirstArgCorrect = sd.getNumParam() > 0 && sd.getParam(0).getType().getQualifiedName().equals("ABS.StdLib.List");
    if (schedulerFunFirstArgCorrect) {
        // check scheduling function first arg, pt.2: are we a list of
        // processes?
        DataTypeType firstArgType = (DataTypeType) sd.getParam(0).getType();
        if (firstArgType.numTypeArgs() != 1) {
            // should not happen since ABS.StdLib.List takes 1 argument
            schedulerFunFirstArgCorrect = false;
        } else {
            schedulerFunFirstArgCorrect = firstArgType.getTypeArg(0).getQualifiedName().equals("ABS.Scheduler.Process");
        }
    }
    if (!schedulerTypeCorrect || !schedulerFunFirstArgCorrect) {
        // emit two messages: one at the annotation location, one for the
        // offending scheduler function
        errors.add(new TypeError(loc, ErrorMessage.WRONG_SCHEDULER_ANNOTATION_TYPE, "dummy"));
        errors.add(new TypeError(sd, ErrorMessage.WRONG_SCHEDULER_FUN_TYPE, s.getName()));
    }
    if (s.getNumParam() == 0 || !(s.getParam(0) instanceof VarUse) || !((VarUse) s.getParam(0)).getName().equals("queue")) {
        // first arg to the scheduler expression must be the magic `queue'
        errors.add(new TypeError(loc, ErrorMessage.WRONG_SCHEDULER_FIRST_ARGUMENT, "dummy"));
    }
    if (s.getNumParam() != sd.getNumParam()) {
        errors.add(new TypeError(loc, ErrorMessage.WRONG_NUMBER_OF_ARGS, s.getNumParam(), sd.getNumParam()));
    } else {
        // start from 1; magic first parameter `queue' already checked
        for (int i = 1; i < s.getNumParam(); i++) {
            PureExp arg = s.getParam(i);
            String argname = "";
            if (!(arg instanceof VarOrFieldUse)) {
                // argument was not a plain identifier
                errors.add(new TypeError(arg, ErrorMessage.WRONG_SCHEDULER_FIELD_ARGUMENT, Integer.toString(i + 1), class_decl.getName()));
            } else {
                // Check the rest of the parameters against class
                // field/param names and argument types of the scheduling
                // function.  Parts of this could be elided if we verify
                // that `VarUse's in scheduler annotation are rewritten to
                // `FieldUse's -- then we'd just have to check for the
                // presence of `VarUse' in the parameter list to detect
                // invalid args.  But can't hurt to open-code it (and we
                // still have to check the type of all arguments vs the
                // scheduling function parameters).
                VarOrFieldUse vararg = (VarOrFieldUse) arg;
                String name = vararg.getName();
                Type argtype = UnknownType.INSTANCE;
                for (ParamDecl p : class_decl.getParamList()) {
                    if (p.getName().equals(name))
                        argtype = p.getType();
                }
                for (FieldDecl f : class_decl.getFieldList()) {
                    if (f.getName().equals(name))
                        argtype = f.getType();
                }
                if (argtype.isUnknownType()) {
                    // identifier, but unknown in the class
                    errors.add(new TypeError(arg, ErrorMessage.WRONG_SCHEDULER_FIELD_ARGUMENT, "\"" + name + "\"", class_decl.getName()));
                } else {
                    // argtype: field; paramtype: function arg
                    Type paramtype = sd.getParam(i).getType();
                    if (!argtype.isAssignableTo(paramtype)) {
                        errors.add(new TypeError(arg, ErrorMessage.TYPE_MISMATCH, argtype, paramtype));
                    }
                }
            }
        }
    }
    if (class_decl.getType().isDeploymentComponentType()) {
        errors.add(new TypeError(loc, ErrorMessage.SCHEDULER_ON_DC, "dummy"));
    }
}

Example 9 with VarUse

use of org.abs_models.frontend.ast.VarUse in project abstools by abstools.

the class ASTBasedABSTestRunnerGenerator method generateDataPointsAST.

private TypeUse generateDataPointsAST(InterfaceDecl key, ClassDecl clazz, Set<TypeUse> use, MainBlock block) {
    MethodSig dataPoint = findDataPoints(key);
    if (dataPoint == null) {
        return null;
    }
    TypeIdUse rt = dataPoint.getReturnType();
    if (!(rt instanceof ParametricDataTypeUse)) {
        return null;
    }
    ParametricDataTypeUse prt = (ParametricDataTypeUse) rt;
    if (!prt.getName().equals("Set")) {
        return null;
    }
    // Set has only one type parameter
    TypeUse u = (TypeUse) prt.getParam(0).copy();
    use.add(u);
    String objName = uncap(clazz.getName()) + "dataPoint";
    String dataSet = dataPointSetName(clazz);
    block.addStmtNoTransform(newObj(key, clazz, objName, true));
    block.addStmtNoTransform(getVarDecl(dataSet, prt.copy(), new SyncCall(new VarUse(objName), dataPoint.getName(), new List<>())));
    return u;
}

Example 10 with VarUse

use of org.abs_models.frontend.ast.VarUse in project abstools by abstools.

the class ASTBasedABSTestRunnerGenerator method generateWaitSyncAST.

private WhileStmt generateWaitSyncAST() {
    WhileStmt ws = new WhileStmt();
    ws.setCondition(getFnApp("hasNext", new VarUse(futs)));
    Block body = new Block();
    DataTypeUse u = getType("Pair", getType("Set", getType("Fut", getType("Unit"))), getType("Fut", getType("Unit")));
    body.addStmtNoTransform(getVarDecl("nt", u, getFnApp("next", new VarUse(futs))));
    body.addStmtNoTransform(getVAssign(fut, getFnApp("snd", new VarUse("nt"))));
    body.addStmtNoTransform(getVAssign(futs, getFnApp("fst", new VarUse("nt"))));
    body.addStmtNoTransform(getExpStmt(new GetExp(new VarUse("fut"))));
    // Attach body at the end, since JastAdd will avoid touching ASTs without parents.
    ws.setBody(body);
    return ws;
}