runtime/vm/ast_test.cc

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

#include "vm/ast.h"
#include "platform/assert.h"
#include "vm/isolate.h"
#include "vm/object.h"
#include "vm/unit_test.h"

namespace dart {

TEST_CASE(Ast) {
  LocalVariable* v =
      new LocalVariable(TokenPosition::kNoSource, TokenPosition::kNoSource,
                        String::ZoneHandle(Symbols::New(thread, "v")),
                        Type::ZoneHandle(Type::DynamicType()));
  AstNode* ll = new LoadLocalNode(TokenPosition::kNoSource, v);
  EXPECT(ll->IsLoadLocalNode());
  EXPECT(!ll->IsLiteralNode());
  LoadLocalNode* lln = ll->AsLoadLocalNode();
  EXPECT(NULL != lln);
  v->set_index(VariableIndex(1));
  EXPECT_EQ(1, v->index().value());

  LocalVariable* p =
      new LocalVariable(TokenPosition::kNoSource, TokenPosition::kNoSource,
                        String::ZoneHandle(Symbols::New(thread, "p")),
                        Type::ZoneHandle(Type::DynamicType()));
  EXPECT(!p->HasIndex());
  p->set_index(VariableIndex(-1));
  EXPECT(p->HasIndex());
  EXPECT_EQ(-1, p->index().value());

  ReturnNode* r = new ReturnNode(TokenPosition::kNoSource, lln);
  EXPECT_EQ(lln, r->value());

  LiteralNode* l =
      new LiteralNode(TokenPosition::kNoSource, Smi::ZoneHandle(Smi::New(3)));
  EXPECT(l->literal().IsSmi());
  EXPECT_EQ(Smi::New(3), l->literal().raw());

  BinaryOpNode* b =
      new BinaryOpNode(TokenPosition::kNoSource, Token::kADD, l, lln);
  EXPECT_EQ(Token::kADD, b->kind());
  EXPECT_EQ(l, b->left());
  EXPECT_EQ(lln, b->right());

  UnaryOpNode* u = new UnaryOpNode(TokenPosition::kNoSource, Token::kNEGATE, b);
  EXPECT_EQ(Token::kNEGATE, u->kind());
  EXPECT_EQ(b, u->operand());

  SequenceNode* sequence_node =
      new SequenceNode(TokenPosition(1), new LocalScope(NULL, 0, 0));
  LiteralNode* literal_node =
      new LiteralNode(TokenPosition(2), Smi::ZoneHandle(Smi::New(3)));
  ReturnNode* return_node = new ReturnNode(TokenPosition(3), literal_node);
  sequence_node->Add(return_node);
  GrowableArray<AstNode*> nodes;
  sequence_node->CollectAllNodes(&nodes);
  EXPECT_EQ(3, nodes.length());
}

}  // namespace dart