Read platform.dill in the VM.

runtime/vm/kernel.h

Index: runtime/vm/kernel.h
diff --git a/runtime/vm/kernel.h b/runtime/vm/kernel.h
index 54f1b9ab9b67b2eb59d4fe8780fc46b3ce3a6a43..e1263e09a4c6a94561f3655a67500fd6179c5040 100644
--- a/runtime/vm/kernel.h
+++ b/runtime/vm/kernel.h
@@ -260,6 +260,12 @@ class String {
   static String* ReadFrom(Reader* reader);
   static String* ReadFromImpl(Reader* reader);
 
+  explicit String(const char* contents) {
+    size_ = strlen(contents);
+    buffer_ = new uint8_t[size_];  // No trailing '\0'.
+    memmove(buffer_, contents, size_);
+  }
+
   String(const uint8_t* utf8, int length) {
     buffer_ = new uint8_t[length];
     size_ = length;
@@ -397,10 +403,10 @@ class CanonicalName {
  private:
   CanonicalName();
 
-  bool is_referenced_;
-  Ref<CanonicalName> parent_;
-  Ref<String> name_;
+  CanonicalName* parent_;
+  String* name_;
   MallocGrowableArray<CanonicalName*> children_;
+  bool is_referenced_;
 
   DISALLOW_COPY_AND_ASSIGN(CanonicalName);
 };
@@ -970,7 +976,10 @@ class FunctionNode : public TreeNode {
   }
   List<VariableDeclaration>& named_parameters() { return named_parameters_; }
   DartType* return_type() { return return_type_; }
+
   Statement* body() { return body_; }
+  void set_body(Statement* body) { body_ = body; }

[kustermann, 2017/04/05 11:47:07]

This only works if body_ is NULL before (Child<Statement>::operator= will assert
it), I guess this is always the case?

[Kevin Millikin (Google), 2017/04/25 18:20:29]

Yes.  We could assert, but since operator= does it isn't necessary.

+
   TokenPosition position() { return position_; }
   TokenPosition end_position() { return end_position_; }
 
@@ -1186,6 +1195,8 @@ class DirectPropertySet : public Expression {
 
 class StaticGet : public Expression {
  public:
+  explicit StaticGet(CanonicalName* target) : target_reference_(target) {}
+
   static StaticGet* ReadFrom(Reader* reader);
 
   virtual ~StaticGet();
@@ -2312,6 +2323,8 @@ class IfStatement : public Statement {
 
 class ReturnStatement : public Statement {
  public:
+  explicit ReturnStatement(Expression* expression) : expression_(expression) {}
+
   static ReturnStatement* ReadFrom(Reader* reader);
 
   virtual ~ReturnStatement();