Accurately type foreign functions, and variables.

test/cctest/test-asm-validator.cc

 // Copyright 2015 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 "src/ast/ast.h"
 #include "src/ast/ast-expression-visitor.h"
 #include "src/ast/scopes.h"
 #include "src/parsing/parser.h"
@@ skipping 1708 matching lines @@
 }
 
 
 TEST(ForeignFunction) {
   CHECK_FUNC_TYPES_BEGIN(
       "var baz = foreign.baz;\n"
       "function bar() { return baz(1, 2)|0; }\n"
       "function foo() { bar(); }") {
     CHECK_EXPR(FunctionLiteral, FUNC_I_TYPE) {
       CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
-        CHECK_EXPR(Call, Bounds(Type::Number(zone))) {
+        CHECK_EXPR(Call, Bounds(cache.kAsmSigned)) {
           CHECK_VAR(baz, Bounds(Type::Any(zone)));
           CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
           CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
         }
         CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
       }
     }
     CHECK_EXPR(FunctionLiteral, FUNC_V_TYPE) {
       CHECK_EXPR(Call, Bounds(cache.kAsmSigned)) {
         CHECK_VAR(bar, FUNC_I_TYPE);
@@ skipping 41 matching lines @@
       "function foo() { bar(); }",
       "asm: line 39: illegal type in assignment\n");
 }
 
 
 TEST(BadStandardFunctionCallOutside) {
   CHECK_FUNC_ERROR(
       "var s0 = sin(0);\n"
       "function bar() { }\n"
       "function foo() { bar(); }",
-      "asm: line 39: calls forbidden outside function bodies\n");
+      "asm: line 39: illegal variable reference in module body\n");
 }
 
 
 TEST(BadFunctionCallOutside) {
   CHECK_FUNC_ERROR(
       "function bar() { return 0.0; }\n"
       "var s0 = bar(0);\n"
       "function foo() { bar(); }",
-      "asm: line 40: calls forbidden outside function bodies\n");
+      "asm: line 40: illegal variable reference in module body\n");
 }
 
 
 TEST(NestedVariableAssignment) {
   CHECK_FUNC_TYPES_BEGIN(
       "function bar() { var x = 0; x = x = 4; }\n"
       "function foo() { bar(); }") {
     CHECK_EXPR(FunctionLiteral, FUNC_V_TYPE) {
       CHECK_EXPR(Assignment, Bounds(cache.kAsmInt)) {
         CHECK_VAR(x, Bounds(cache.kAsmInt));
@@ skipping 19 matching lines @@
       "function foo() { bar(); }") {
     CHECK_EXPR(FunctionLiteral, FUNC_V_TYPE) {
       CHECK_EXPR(Assignment, Bounds(cache.kAsmInt)) {
         CHECK_VAR(x, Bounds(cache.kAsmInt));
         CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
       }
       CHECK_EXPR(Assignment, Bounds(cache.kAsmInt)) {
         CHECK_EXPR(Property, Bounds::Unbounded()) {
           CHECK_VAR(i8, Bounds(cache.kInt8Array));
           CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
-            CHECK_EXPR(Assignment, Bounds(cache.kAsmSigned)) {
+            CHECK_EXPR(Assignment, Bounds(cache.kAsmInt)) {
               CHECK_VAR(x, Bounds(cache.kAsmInt));
               CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
             }
             CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
           }
         }
         CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
       }
     }
     CHECK_SKIP();
@@ skipping 192 matching lines @@
       "asm: line 39: duplicate case value\n");
 }
 
 
 TEST(BadSwitchOrder) {
   CHECK_FUNC_ERROR(
       "function bar() { switch (1) { default: case 0: } }\n"
       "function foo() { bar(); }",
       "asm: line 39: default case out of order\n");
 }
+
+TEST(BadForeignCall) {
+  const char test_function[] =
+      "function TestModule(stdlib, foreign, buffer) {\n"
+      "  \"use asm\";\n"
+      "  var ffunc = foreign.foo;\n"
+      "  function test1() { var x = 0; ffunc(x); }\n"
+      "  return { testFunc1: test1 };\n"
+      "}\n";
+  v8::V8::Initialize();
+  HandleAndZoneScope handles;
+  Zone* zone = handles.main_zone();
+  ZoneVector<ExpressionTypeEntry> types(zone);
+  CHECK_EQ(
+      "asm: line 4: foreign call argument expected to be int, double, or "
+      "fixnum\n",
+      Validate(zone, test_function, &types));
+}
+
+TEST(BadImports) {
+  const char test_function[] =
+      "function TestModule(stdlib, foreign, buffer) {\n"
+      "  \"use asm\";\n"
+      "  var fint = (foreign.bar | 0) | 0;\n"
+      "  function test1() {}\n"
+      "  return { testFunc1: test1 };\n"
+      "}\n";
+  v8::V8::Initialize();
+  HandleAndZoneScope handles;
+  Zone* zone = handles.main_zone();
+  ZoneVector<ExpressionTypeEntry> types(zone);
+  CHECK_EQ("asm: line 3: illegal computation inside module body\n",
+           Validate(zone, test_function, &types));
+}
+
+TEST(BadVariableReference) {
+  const char test_function[] =
+      "function TestModule(stdlib, foreign, buffer) {\n"
+      "  \"use asm\";\n"
+      "  var x = 0;\n"
+      "  var y = x;\n"
+      "  function test1() {}\n"
+      "  return { testFunc1: test1 };\n"
+      "}\n";
+  v8::V8::Initialize();
+  HandleAndZoneScope handles;
+  Zone* zone = handles.main_zone();
+  ZoneVector<ExpressionTypeEntry> types(zone);
+  CHECK_EQ("asm: line 4: illegal variable reference in module body\n",
+           Validate(zone, test_function, &types));
+}
+
+TEST(Imports) {
+  const char test_function[] =
+      "function TestModule(stdlib, foreign, buffer) {\n"
+      "  \"use asm\";\n"
+      "  var ffunc = foreign.foo;\n"
+      "  var fint = foreign.bar | 0;\n"
+      "  var fdouble = +foreign.baz;\n"
+      "  function test1() { return ffunc(fint|0, fdouble) | 0; }\n"
+      "  function test2() { return +ffunc(fdouble, fint|0); }\n"
+      "  return { testFunc1: test1, testFunc2: test2 };\n"
+      "}\n";
+
+  v8::V8::Initialize();
+  HandleAndZoneScope handles;
+  Zone* zone = handles.main_zone();
+  ZoneVector<ExpressionTypeEntry> types(zone);
+  CHECK_EQ("", Validate(zone, test_function, &types));
+  TypeCache cache;
+
+  CHECK_TYPES_BEGIN {
+    // Module.
+    CHECK_EXPR(FunctionLiteral, Bounds::Unbounded()) {
+      // function test1
+      CHECK_EXPR(FunctionLiteral, FUNC_I_TYPE) {
+        CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
+          CHECK_EXPR(Call, Bounds(cache.kAsmSigned)) {
+            CHECK_VAR(ffunc, Bounds(Type::Any(zone)));
+            CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
+              CHECK_VAR(fint, Bounds(cache.kAsmInt));
+              CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
+            }
+            CHECK_VAR(fdouble, Bounds(cache.kAsmDouble));
+          }
+          CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
+        }
+      }
+      // function test2
+      CHECK_EXPR(FunctionLiteral, FUNC_D_TYPE) {
+        CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmDouble)) {
+          CHECK_EXPR(Call, Bounds(cache.kAsmDouble)) {
+            CHECK_VAR(ffunc, Bounds(Type::Any(zone)));
+            CHECK_VAR(fdouble, Bounds(cache.kAsmDouble));
+            CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
+              CHECK_VAR(fint, Bounds(cache.kAsmInt));
+              CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
+            }
+          }
+          CHECK_EXPR(Literal, Bounds(cache.kAsmDouble));
+        }
+      }
+      // "use asm";
+      CHECK_EXPR(Literal, Bounds(Type::String(zone)));
+      // var func = foreign.foo;
+      CHECK_EXPR(Assignment, Bounds(Type::Any(zone))) {
+        CHECK_VAR(ffunc, Bounds(Type::Any(zone)));
+        CHECK_EXPR(Property, Bounds(Type::Any(zone))) {
+          CHECK_VAR(foreign, Bounds::Unbounded());
+          CHECK_EXPR(Literal, Bounds::Unbounded());
+        }
+      }
+      // var fint = foreign.bar | 0;
+      CHECK_EXPR(Assignment, Bounds(cache.kAsmInt)) {
+        CHECK_VAR(fint, Bounds(cache.kAsmInt));
+        CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmSigned)) {
+          CHECK_EXPR(Property, Bounds(Type::Number())) {
+            CHECK_VAR(foreign, Bounds::Unbounded());
+            CHECK_EXPR(Literal, Bounds::Unbounded());
+          }
+          CHECK_EXPR(Literal, Bounds(cache.kAsmFixnum));
+        }
+      }
+      // var fdouble = +foreign.baz;
+      CHECK_EXPR(Assignment, Bounds(cache.kAsmDouble)) {
+        CHECK_VAR(fdouble, Bounds(cache.kAsmDouble));
+        CHECK_EXPR(BinaryOperation, Bounds(cache.kAsmDouble)) {
+          CHECK_EXPR(Property, Bounds(Type::Number())) {
+            CHECK_VAR(foreign, Bounds::Unbounded());
+            CHECK_EXPR(Literal, Bounds::Unbounded());
+          }
+          CHECK_EXPR(Literal, Bounds(cache.kAsmDouble));
+        }
+      }
+      // return { testFunc1: test1, testFunc2: test2 };
+      CHECK_EXPR(ObjectLiteral, Bounds::Unbounded()) {
+        CHECK_VAR(test1, FUNC_I_TYPE);
+        CHECK_VAR(test2, FUNC_D_TYPE);
+      }
+    }
+  }
+  CHECK_TYPES_END
+}