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// 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 "test/cctest/compiler/function-tester.h"
namespace v8 {
namespace internal {
namespace compiler {
static const char* throws = NULL;
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",
NULL};
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",
NULL};
static void RunVariableTests(const char* source, const char* tests[]) {
EmbeddedVector<char, 512> buffer;
for (int i = 0; tests[i] != NULL; i += 3) {
SNPrintF(buffer, source, tests[i]);
PrintF("#%d: %s\n", i / 3, buffer.start());
FunctionTester T(buffer.start());
// 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
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