blob: 0097de584b78ed4c569801f2e6319104827c8385 [file] [log] [blame]
// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/api/api-inl.h"
#include "src/objects/objects-inl.h"
#include "test/cctest/compiler/function-tester.h"
namespace v8 {
namespace internal {
namespace compiler {
static const char* throws = nullptr;
static const char* load_tests[] = {"var x = a; r = x",
"123",
"0",
"var x = (r = x)",
"undefined",
"undefined",
"var x = (a?1:2); r = x",
"1",
"2",
"const x = a; r = x",
"123",
"0",
"const x = (a?3:4); r = x",
"3",
"4",
"'use strict'; const x = a; r = x",
"123",
"0",
"'use strict'; const x = (r = x)",
throws,
throws,
"'use strict'; const x = (a?5:6); r = x",
"5",
"6",
"'use strict'; let x = a; r = x",
"123",
"0",
"'use strict'; let x = (r = x)",
throws,
throws,
"'use strict'; let x = (a?7:8); r = x",
"7",
"8",
nullptr};
static const char* store_tests[] = {
"var x = 1; x = a; r = x", "123", "0", "var x = (a?(x=4,2):3); r = x", "2",
"3", "var x = (a?4:5); x = a; r = x", "123", "0",
// Assignments to 'const' are SyntaxErrors, handled by the parser,
// hence we cannot test them here because they are early errors.
"'use strict'; let x = 1; x = a; r = x", "123", "0",
"'use strict'; let x = (a?(x=4,2):3); r = x", throws, "3",
"'use strict'; let x = (a?4:5); x = a; r = x", "123", "0", nullptr};
static void RunVariableTests(const char* source, const char* tests[]) {
EmbeddedVector<char, 512> buffer;
for (int i = 0; tests[i] != nullptr; i += 3) {
SNPrintF(buffer, source, tests[i]);
PrintF("#%d: %s\n", i / 3, buffer.begin());
FunctionTester T(buffer.begin());
// Check function with non-falsey parameter.
if (tests[i + 1] != throws) {
Handle<Object> r = v8::Utils::OpenHandle(*CompileRun(tests[i + 1]));
T.CheckCall(r, T.Val(123), T.Val("result"));
} else {
T.CheckThrows(T.Val(123), T.Val("result"));
}
// Check function with falsey parameter.
if (tests[i + 2] != throws) {
Handle<Object> r = v8::Utils::OpenHandle(*CompileRun(tests[i + 2]));
T.CheckCall(r, T.Val(0.0), T.Val("result"));
} else {
T.CheckThrows(T.Val(0.0), T.Val("result"));
}
}
}
TEST(StackLoadVariables) {
const char* source = "(function(a,r) { %s; return r; })";
RunVariableTests(source, load_tests);
}
TEST(ContextLoadVariables) {
const char* source = "(function(a,r) { %s; function f() {x} return r; })";
RunVariableTests(source, load_tests);
}
TEST(StackStoreVariables) {
const char* source = "(function(a,r) { %s; return r; })";
RunVariableTests(source, store_tests);
}
TEST(ContextStoreVariables) {
const char* source = "(function(a,r) { %s; function f() {x} return r; })";
RunVariableTests(source, store_tests);
}
TEST(SelfReferenceVariable) {
FunctionTester T("(function self() { return self; })");
T.CheckCall(T.function);
CompileRun("var self = 'not a function'");
T.CheckCall(T.function);
}
} // namespace compiler
} // namespace internal
} // namespace v8