4a2bb8903b
R=jochen@chromium.org Review URL: https://codereview.chromium.org/1408283006 Cr-Commit-Position: refs/heads/master@{#31630}
124 lines
4.2 KiB
C++
124 lines
4.2 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// TODO(jochen): Remove this after the setting is turned on globally.
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#define V8_IMMINENT_DEPRECATION_WARNINGS
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#include "src/v8.h"
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#include "test/cctest/compiler/function-tester.h"
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using namespace v8::internal;
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using namespace v8::internal::compiler;
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static const char* throws = NULL;
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static const char* load_tests[] = {
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"var x = a; r = x", "123", "0",
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"var x = (r = x)", "undefined", "undefined",
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"var x = (a?1:2); r = x", "1", "2",
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"const x = a; r = x", "123", "0",
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"const x = (r = x)", "undefined", "undefined",
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"const x = (a?3:4); r = x", "3", "4",
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"'use strict'; const x = a; r = x", "123", "0",
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"'use strict'; const x = (r = x)", throws, throws,
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"'use strict'; const x = (a?5:6); r = x", "5", "6",
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"'use strict'; let x = a; r = x", "123", "0",
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"'use strict'; let x = (r = x)", throws, throws,
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"'use strict'; let x = (a?7:8); r = x", "7", "8",
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NULL};
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static const char* store_tests[] = {
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"var x = 1; x = a; r = x", "123", "0",
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"var x = (a?(x=4,2):3); r = x", "2", "3",
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"var x = (a?4:5); x = a; r = x", "123", "0",
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"const x = 1; x = a; r = x", "1", "1",
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"const x = (a?(x=4,2):3); r = x", "2", "3",
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"const x = (a?4:5); x = a; r = x", "4", "5",
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// Assignments to 'const' are SyntaxErrors, handled by the parser,
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// hence we cannot test them here because they are early errors.
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"'use strict'; let x = 1; x = a; r = x", "123", "0",
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"'use strict'; let x = (a?(x=4,2):3); r = x", throws, "3",
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"'use strict'; let x = (a?4:5); x = a; r = x", "123", "0",
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NULL};
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static const char* bind_tests[] = {
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"if (a) { const x = a }; r = x;", "123", "undefined",
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"for (; a > 0; a--) { const x = a }; r = x", "123", "undefined",
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// Re-initialization of variables other than legacy 'const' is not
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// possible due to sane variable scoping, hence no tests here.
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NULL};
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static void RunVariableTests(const char* source, const char* tests[]) {
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EmbeddedVector<char, 512> buffer;
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for (int i = 0; tests[i] != NULL; i += 3) {
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SNPrintF(buffer, source, tests[i]);
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PrintF("#%d: %s\n", i / 3, buffer.start());
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FunctionTester T(buffer.start());
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// Check function with non-falsey parameter.
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if (tests[i + 1] != throws) {
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Handle<Object> r = v8::Utils::OpenHandle(*CompileRun(tests[i + 1]));
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T.CheckCall(r, T.Val(123), T.Val("result"));
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} else {
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T.CheckThrows(T.Val(123), T.Val("result"));
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}
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// Check function with falsey parameter.
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if (tests[i + 2] != throws) {
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Handle<Object> r = v8::Utils::OpenHandle(*CompileRun(tests[i + 2]));
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T.CheckCall(r, T.Val(0.0), T.Val("result"));
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} else {
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T.CheckThrows(T.Val(0.0), T.Val("result"));
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}
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}
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}
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TEST(StackLoadVariables) {
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const char* source = "(function(a,r) { %s; return r; })";
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RunVariableTests(source, load_tests);
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}
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TEST(ContextLoadVariables) {
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const char* source = "(function(a,r) { %s; function f() {x} return r; })";
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RunVariableTests(source, load_tests);
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}
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TEST(StackStoreVariables) {
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const char* source = "(function(a,r) { %s; return r; })";
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RunVariableTests(source, store_tests);
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}
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TEST(ContextStoreVariables) {
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const char* source = "(function(a,r) { %s; function f() {x} return r; })";
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RunVariableTests(source, store_tests);
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}
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TEST(StackInitializeVariables) {
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const char* source = "(function(a,r) { %s; return r; })";
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RunVariableTests(source, bind_tests);
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}
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TEST(ContextInitializeVariables) {
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const char* source = "(function(a,r) { %s; function f() {x} return r; })";
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RunVariableTests(source, bind_tests);
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}
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TEST(SelfReferenceVariable) {
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FunctionTester T("(function self() { return self; })");
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T.CheckCall(T.function);
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CompileRun("var self = 'not a function'");
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T.CheckCall(T.function);
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}
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