Examples with FunctionDecl abs.frontend.ast.FunctionDecl used on opensource projects

Example 6 with FunctionDecl

use of abs.frontend.ast.FunctionDecl 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 7 with FunctionDecl

use of abs.frontend.ast.FunctionDecl in project abstools by abstools.

the class TreeUtilsTest method recurseForSome.

@Test
public void recurseForSome() {
    Model model = assertParseOkStdLib("def Int test(Int i) = 1 + test(2);");
    FunctionDecl functionDecl = getLastFunctionDecl(model);
    assertEquals("test", functionDecl.getName());
    FunctionDef def = functionDecl.getFunctionDef();
    Stream<PureExp> children = def.findChildren(cast(PureExp.class), AddExp.class::isInstance);
    assertNotNull(children);
    List<PureExp> result = children.distinct().collect(Collectors.toList());
    // expecting AddExp, IntLiteral(1), FnApp, NOT IntLiteral(2)
    assertEquals(3, result.size());
    for (PureExp exp : result) {
        assertFalse(exp instanceof IntLiteral && ((IntLiteral) exp).getContent().equals("2"));
    }
}

Example 8 with FunctionDecl

use of abs.frontend.ast.FunctionDecl in project abstools by abstools.

the class TreeUtilsTest method findChildrenListNotNull.

@Test
public void findChildrenListNotNull() {
    Model model = assertParseOkStdLib("def Int test(Int i) = test(1);");
    FunctionDecl functionDecl = getLastFunctionDecl(model);
    assertEquals("test", functionDecl.getName());
    List<Stmt> children = functionDecl.getFunctionDef().findChildren(Stmt.class);
    assertNotNull(children);
    assertTrue(children.isEmpty());
}

Example 9 with FunctionDecl

use of abs.frontend.ast.FunctionDecl in project abstools by abstools.

the class TreeUtilsTest method findChildrenIncludeOnlySelf.

@Test
public void findChildrenIncludeOnlySelf() {
    Model model = assertParseOkStdLib("def Int test(Int i) = test(1);");
    FunctionDecl functionDecl = getLastFunctionDecl(model);
    assertEquals("test", functionDecl.getName());
    ExpFunctionDef def = (ExpFunctionDef) functionDecl.getFunctionDef();
    PureExp exp = def.getRhs();
    Stream<PureExp> children = def.findChildren(cast(PureExp.class), n -> false);
    assertNotNull(children);
    List<PureExp> result = children.distinct().collect(Collectors.toList());
    assertEquals(1, result.size());
    assertTrue(result.contains(exp));
}

Example 10 with FunctionDecl

use of abs.frontend.ast.FunctionDecl in project abstools by abstools.

the class TreeUtilsTest method closestParentIgnoresSelf.

@Test
public void closestParentIgnoresSelf() {
    Model model = assertParseOkStdLib("def Int test() = 1;");
    FunctionDecl functionDecl = getLastFunctionDecl(model);
    assertEquals("test", functionDecl.getName());
    FunctionDef functionDef = functionDecl.getFunctionDef();
    assertSame(functionDecl, functionDef.closestParent(ASTNode.class));
}