/*
* Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.oracle.truffle.js.test.instrumentation;
import org.junit.Test;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.BinaryOperationTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ControlFlowBranchTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.EvalCallTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.FunctionCallTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.LiteralTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ReadPropertyTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.ReadVariableTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.WritePropertyTag;
import com.oracle.truffle.js.nodes.instrumentation.JSTags.WriteVariableTag;
import com.oracle.truffle.js.runtime.objects.Undefined;
public class EvalTest extends FineGrainedAccessTest {
@Test
public void eval() {
evalAllTags("eval('var a = 42;')");
enter(EvalCallTag.class, (e, eval) -> {
enter(ReadPropertyTag.class, assertPropertyReadName("eval")).input(assertGlobalObjectInput).exit();
eval.input(assertJSFunctionInput);
enter(LiteralTag.class, assertLiteralType(LiteralTag.Type.StringLiteral)).exit();
eval.input("var a = 42;");
enter(WritePropertyTag.class, (e1, prop) -> {
prop.input(assertJSObjectInput);
enter(LiteralTag.class).exit(assertReturnValue(42));
prop.input(42);
}).exit();
}).exit();
}
@Test
public void evalVariableReadWrite() {
evalAllTags("function foo(a) {" +
" function bar() {" +
" a = a+1;" +
" return a;" +
" }" +
" eval('var a = 30');" +
" return bar;" +
"}" +
"foo(42)();");
// write function foo
enter(WritePropertyTag.class, (e, wp) -> {
wp.input(assertGlobalObjectInput);
enter(LiteralTag.class).exit((e2) -> {
assertAttribute(e2, LITERAL_TYPE, LiteralTag.Type.FunctionLiteral.name());
});
wp.input(assertJSFunctionInput);
}).exit();
// foo(42)();
enter(FunctionCallTag.class, (e1, call) -> {
// receiver undefined
enter(LiteralTag.class).exit(assertReturnValue(Undefined.instance));
call.input(assertUndefinedInput);
// foo(42);
enter(FunctionCallTag.class, (e2, call2) -> {
enter(LiteralTag.class).exit(assertReturnValue(Undefined.instance));
call.input(assertUndefinedInput);
// get the function from the property foo
enter(ReadPropertyTag.class, (e3, pr) -> {
assertAttribute(e3, KEY, "foo");
pr.input(assertGlobalObjectInput);
}).exit();
call.input(assertJSFunctionInput);
// argument 42
enter(LiteralTag.class).exit();
call.input(42);
// locals declaration
enterDeclareTag("a");
enterDeclareTag("arguments");
// inside the foo function
// write the 42 into the argument variable
enter(WriteVariableTag.class, (e3, vw) -> {
vw.input(42);
}).exit();
// create a local function bar
enter(WriteVariableTag.class, (e3, vw) -> {
enterDeclareTag("bar");
vw.input(assertJSFunctionInput);
}).exit();
// eval
enter(EvalCallTag.class, (e3, eval) -> {
// read the eval function
enter(ReadVariableTag.class).exit();
eval.input();
// read the String
enter(LiteralTag.class).exit();
eval.input();
// var a = 30
enter(WriteVariableTag.class, (e4, vw) -> {
enter(LiteralTag.class).exit();
vw.input(30);
}).exit();
}).exit();
// return bar
enter(ControlFlowBranchTag.class, (e4, v) -> {
assertAttribute(e4, TYPE, ControlFlowBranchTag.Type.Return.name());
enter(ReadVariableTag.class).exit();
v.input(assertJSFunctionInput);
}).exitMaybeControlFlowException();
}).exit();
// foo(42) returns the function (bar)
call.input(assertJSFunctionInput);
// inside bar
// a = a + 1;
enter(WriteVariableTag.class, (e2, vw) -> {
// a + 1
enter(BinaryOperationTag.class, (e3, b) -> {
enter(ReadVariableTag.class).exit();
b.input(30);
enter(LiteralTag.class).exit();
b.input(1);
}).exit();
vw.input(31);
}).exit();
// return a;
enter(ControlFlowBranchTag.class, (e4, v) -> {
assertAttribute(e4, TYPE, ControlFlowBranchTag.Type.Return.name());
enter(ReadVariableTag.class).exit();
v.input(31);
}).exitMaybeControlFlowException();
}).exit();
}
}