Examples with ParseResult org.projectnessie.cel.parser.Parser.ParseResult used on opensource projects

Example 6 with ParseResult

use of org.projectnessie.cel.parser.Parser.ParseResult in project cel-java by projectnessie.

the class Env method check.

/**
 * Check performs type-checking on the input Ast and yields a checked Ast and/or set of Issues.
 *
 * <p>Checking has failed if the returned Issues value and its Issues.Err() value are non-nil.
 * Issues should be inspected if they are non-nil, but may not represent a fatal error.
 *
 * <p>It is possible to have both non-nil Ast and Issues values returned from this call: however,
 * the mere presence of an Ast does not imply that it is valid for use.
 */
public AstIssuesTuple check(Ast ast) {
    // Note, errors aren't currently possible on the Ast to ParsedExpr conversion.
    ParsedExpr pe = astToParsedExpr(ast);
    // Construct the internal checker env, erroring if there is an issue adding the declarations.
    synchronized (once) {
        if (chk == null && chkErr == null) {
            CheckerEnv ce = CheckerEnv.newCheckerEnv(container, provider);
            ce.enableDynamicAggregateLiterals(true);
            if (hasFeature(FeatureDisableDynamicAggregateLiterals)) {
                ce.enableDynamicAggregateLiterals(false);
            }
            try {
                ce.add(declarations);
                chk = ce;
            } catch (RuntimeException e) {
                chkErr = e;
            } catch (Exception e) {
                chkErr = new RuntimeException(e);
            }
        }
    }
    // The once call will ensure that this value is set or nil for all invocations.
    if (chkErr != null) {
        Errors errs = new Errors(ast.getSource());
        errs.reportError(NoLocation, "%s", chkErr.toString());
        return new AstIssuesTuple(null, newIssues(errs));
    }
    ParseResult pr = new ParseResult(pe.getExpr(), new Errors(ast.getSource()), pe.getSourceInfo());
    CheckResult checkRes = Checker.Check(pr, ast.getSource(), chk);
    if (checkRes.hasErrors()) {
        return new AstIssuesTuple(null, newIssues(checkRes.getErrors()));
    }
    // Manually create the Ast to ensure that the Ast source information (which may be more
    // detailed than the information provided by Check), is returned to the caller.
    CheckedExpr ce = checkRes.getCheckedExpr();
    ast = new Ast(ce.getExpr(), ce.getSourceInfo(), ast.getSource(), ce.getReferenceMapMap(), ce.getTypeMapMap());
    return new AstIssuesTuple(ast, Issues.noIssues(ast.getSource()));
}

Example 7 with ParseResult

use of org.projectnessie.cel.parser.Parser.ParseResult in project cel-java by projectnessie.

the class CheckerTest method check.

@ParameterizedTest
@MethodSource("checkTestCases")
void check(TestCase tc) {
    Assumptions.assumeTrue(tc.disabled == null, tc.disabled);
    Source src = newTextSource(tc.i);
    ParseResult parsed = Parser.parseAllMacros(src);
    assertThat(parsed.getErrors().getErrors()).withFailMessage(parsed.getErrors()::toDisplayString).isEmpty();
    TypeRegistry reg = ProtoTypeRegistry.newRegistry(com.google.api.expr.test.v1.proto2.TestAllTypesProto.TestAllTypes.getDefaultInstance(), com.google.api.expr.test.v1.proto3.TestAllTypesProto.TestAllTypes.getDefaultInstance());
    Container cont = Container.newContainer(Container.name(tc.container));
    CheckerEnv env = newStandardCheckerEnv(cont, reg);
    if (tc.disableStdEnv) {
        env = newCheckerEnv(cont, reg);
    }
    if (tc.homogeneousAggregateLiterals) {
        env.enableDynamicAggregateLiterals(false);
    }
    if (tc.env != null) {
        if (tc.env.idents != null) {
            for (Decl ident : tc.env.idents) {
                env.add(ident);
            }
        }
        if (tc.env.functions != null) {
            for (Decl fn : tc.env.functions) {
                env.add(fn);
            }
        }
    }
    CheckResult checkResult = Checker.Check(parsed, src, env);
    if (checkResult.hasErrors()) {
        String errorString = checkResult.getErrors().toDisplayString();
        if (tc.error != null) {
            assertThat(errorString).isEqualTo(tc.error);
        } else {
            fail(String.format("Unexpected type-check errors: %s", errorString));
        }
    } else if (tc.error != null) {
        assertThat(tc.error).withFailMessage(String.format("Expected error not thrown: %s", tc.error)).isNull();
    }
    Type actual = checkResult.getCheckedExpr().getTypeMapMap().get(parsed.getExpr().getId());
    if (tc.error == null) {
        if (actual == null || !actual.equals(tc.type)) {
            fail(String.format("Type Error: '%s' vs expected '%s'", actual, tc.type));
        }
    }
    if (tc.r != null) {
        String actualStr = print(checkResult.getCheckedExpr().getExpr(), checkResult.getCheckedExpr());
        String actualCmp = actualStr.replaceAll("[ \n\t]", "");
        String rCmp = tc.r.replaceAll("[ \n\t]", "");
        assertThat(actualCmp).isEqualTo(rCmp);
    }
}

Example 8 with ParseResult

use of org.projectnessie.cel.parser.Parser.ParseResult in project cel-java by projectnessie.

the class AttributesTest method attributeStateTracking.

@ParameterizedTest
@MethodSource("attributeStateTrackingTests")
void attributeStateTracking(TestDef tc) {
    Source src = Source.newTextSource(tc.expr);
    ParseResult parsed = Parser.parseAllMacros(src);
    assertThat(parsed.hasErrors()).isFalse();
    Container cont = Container.defaultContainer;
    TypeRegistry reg = newRegistry();
    CheckerEnv env = newStandardCheckerEnv(cont, reg);
    if (tc.env != null) {
        env.add(tc.env);
    }
    CheckResult checkResult = Checker.Check(parsed, src, env);
    if (parsed.hasErrors()) {
        throw new IllegalArgumentException(parsed.getErrors().toDisplayString());
    }
    AttributeFactory attrs = newAttributeFactory(cont, reg, reg);
    Interpreter interp = newStandardInterpreter(cont, reg, reg, attrs);
    // Show that program planning will now produce an error.
    EvalState st = newEvalState();
    Interpretable i = interp.newInterpretable(checkResult.getCheckedExpr(), optimize(), trackState(st));
    Activation in = newActivation(tc.in);
    Val out = i.eval(in);
    assertThat(out).extracting(o -> o.equal(tc.out)).isSameAs(True);
    for (Entry<Object, Object> iv : tc.state.entrySet()) {
        long id = ((Number) iv.getKey()).longValue();
        Object val = iv.getValue();
        Val stVal = st.value(id);
        assertThat(stVal).withFailMessage(() -> String.format("id(%d), val=%s, stVal=%s", id, val, stVal)).isNotNull();
        assertThat(stVal).withFailMessage(() -> String.format("id(%d), val=%s, stVal=%s", id, val, stVal)).isEqualTo(DefaultTypeAdapter.Instance.nativeToValue(val));
        deepEquals(String.format("id(%d)", id), stVal.value(), val);
    }
}

Example 9 with ParseResult

use of org.projectnessie.cel.parser.Parser.ParseResult in project cel-java by projectnessie.

the class InterpreterTest method typeConversionOpt.

@ParameterizedTest
@MethodSource("typeConversionOptTests")
void typeConversionOpt(ConvTestCase tc) {
    Source src = newTextSource(tc.in);
    ParseResult parsed = Parser.parseAllMacros(src);
    assertThat(parsed.hasErrors()).withFailMessage(parsed.getErrors()::toDisplayString).isFalse();
    Container cont = Container.defaultContainer;
    TypeRegistry reg = newRegistry();
    CheckerEnv env = newStandardCheckerEnv(cont, reg);
    CheckResult checkResult = Checker.Check(parsed, src, env);
    if (parsed.hasErrors()) {
        throw new IllegalArgumentException(parsed.getErrors().toDisplayString());
    }
    AttributeFactory attrs = newAttributeFactory(cont, reg, reg);
    Interpreter interp = newStandardInterpreter(cont, reg, reg, attrs);
    if (!tc.fail) {
        typeConversionOptCheck(tc, checkResult, interp);
    } else {
        Throwable err = catchThrowable(() -> typeConversionOptCheck(tc, checkResult, interp));
        assertThat(err).withFailMessage(() -> format("Expected '%s' to fail with '%s'", tc.in, tc.err)).isNotNull();
        // TODO 'err' below comes from "try-catch" of the preceding 'newInterpretable'
        // Show how the error returned during program planning is the same as the runtime
        // error which would be produced normally.
        Interpretable i2 = interp.newInterpretable(checkResult.getCheckedExpr());
        Val errVal = i2.eval(emptyActivation());
        String errValStr = errVal.toString();
        assertThat(errValStr).isEqualTo(err.getMessage());
        if (tc.err != null) {
            assertThat(errValStr).contains(tc.err);
        }
    }
}

Example 10 with ParseResult

use of org.projectnessie.cel.parser.Parser.ParseResult in project cel-java by projectnessie.

the class InterpreterTest method exhaustiveConditionalExpr.

@Test
void exhaustiveConditionalExpr() {
    Source src = newTextSource("a ? b < 1.0 : c == ['hello']");
    ParseResult parsed = Parser.parseAllMacros(src);
    assertThat(parsed.hasErrors()).withFailMessage(parsed.getErrors()::toDisplayString).isFalse();
    EvalState state = newEvalState();
    Container cont = Container.defaultContainer;
    TypeRegistry reg = newRegistry(ParsedExpr.getDefaultInstance());
    AttributeFactory attrs = newAttributeFactory(cont, reg, reg);
    Interpreter intr = newStandardInterpreter(cont, reg, reg, attrs);
    Interpretable interpretable = intr.newUncheckedInterpretable(parsed.getExpr(), exhaustiveEval(state));
    Activation vars = newActivation(mapOf("a", True, "b", doubleOf(0.999), "c", ListT.newStringArrayList(new String[] { "hello" })));
    Val result = interpretable.eval(vars);
    // Operator "_==_" is at Expr 7, should be evaluated in exhaustive mode
    // even though "a" is true
    Val ev = state.value(7);
    // "==" should be evaluated in exhaustive mode though unnecessary
    assertThat(ev).withFailMessage("Else expression expected to be true").isSameAs(True);
    assertThat(result).isSameAs(True);
}