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Unified Diff: test/cctest/compiler/test-run-variables.cc

Issue 426233002: Land the Fan (disabled) (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Review feedback, rebase and "git cl format" Created 6 years, 5 months ago
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Index: test/cctest/compiler/test-run-variables.cc
diff --git a/test/cctest/compiler/test-run-variables.cc b/test/cctest/compiler/test-run-variables.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bf86e0d42c780385a3327296fda3ed6857da25d8
--- /dev/null
+++ b/test/cctest/compiler/test-run-variables.cc
@@ -0,0 +1,121 @@
+// 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/v8.h"
+
+#include "test/cctest/compiler/function-tester.h"
+
+using namespace v8::internal;
+using namespace v8::internal::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 = (r = x)", "undefined", "undefined",
+ "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",
+ "const x = 1; x = a; r = x", "1", "1",
+ "const x = (a?(x=4,2):3); r = x", "2", "3",
+ "const x = (a?4:5); x = a; r = x", "4", "5",
+ // 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 const char* bind_tests[] = {
+ "if (a) { const x = a }; r = x;", "123", "undefined",
+ "for (; a > 0; a--) { const x = a }; r = x", "123", "undefined",
+ // Re-initialization of variables other than legacy 'const' is not
+ // possible due to sane variable scoping, hence no tests here.
+ NULL};
+
+
+static void RunVariableTests(const char* source, const char* tests[]) {
+ FLAG_harmony_scoping = true;
+ 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(StackInitializeVariables) {
+ const char* source = "(function(a,r) { %s; return r; })";
+ RunVariableTests(source, bind_tests);
+}
+
+
+TEST(ContextInitializeVariables) {
+ const char* source = "(function(a,r) { %s; function f() {x} return r; })";
+ RunVariableTests(source, bind_tests);
+}
+
+
+TEST(SelfReferenceVariable) {
+ FunctionTester T("(function self() { return self; })");
+
+ T.CheckCall(T.function);
+ CompileRun("var self = 'not a function'");
+ T.CheckCall(T.function);
+}
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