Non-tree-shaking --precompile.

runtime/vm/precompiler.cc

+// Copyright (c) 2015, 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/precompiler.h"
+
+#include "vm/isolate.h"
+#include "vm/object.h"
+#include "vm/object_store.h"
+#include "vm/compiler.h"
+#include "vm/longjump.h"
+
+namespace dart {
+
+
+DEFINE_FLAG(bool, trace_precompiler, false, "Trace precompiler.");
+
+
+static RawError* CompileFunction(const Function& func) {
+  Thread* thread = Thread::Current();
+  Error& error = Error::Handle();
+  if (func.is_abstract() || func.IsRedirectingFactory()) {
+    return error.raw();
+  }
+
+  if (!func.HasCode()) {
+    if (FLAG_trace_precompiler) {
+      OS::Print("    Precompiling %s (%" Pd ")\n",
+                func.ToQualifiedCString(),
+                func.token_pos());
+    }
+    error = Compiler::CompileFunction(thread, func);
+    if (!error.IsNull()) {
+      return error.raw();
+    }
+  }
+
+  if ((func.kind() == RawFunction::kRegularFunction) && !func.is_static()) {
+    const String& name = String::Handle(func.name());
+    if (!Field::IsGetterName(name) && !Field::IsSetterName(name)) {
+      const Function& closure_func =
+          Function::Handle(func.ImplicitClosureFunction());
+      ASSERT(!closure_func.IsNull());
+      error = CompileFunction(closure_func);
+    }
+  }
+
+  return error.raw();
+}
+
+
+static RawError* CompileClass(const Class& cls) {
+  if (FLAG_trace_precompiler) {
+    OS::Print("  Precompiling %s\n", cls.ToCString());
+  }
+
+  Error& error = Error::Handle();
+  error = cls.EnsureIsFinalized(Isolate::Current());
+  if (!error.IsNull()) {
+    return error.raw();
+  }
+
+  const Array& fields = Array::Handle(cls.fields());
+  Field& field = Field::Handle();
+  for (intptr_t i = 0; i < fields.Length(); i++) {
+    field ^= fields.At(i);
+    ASSERT(!field.IsNull());
+    if (field.is_static() && field.has_initializer()) {
+      if (FLAG_trace_precompiler) {
+        OS::Print("    Precompiling initializer for %s\n", field.ToCString());
+      }
+      Compiler::CompileStaticInitializer(field);
+    }
+  }
+
+  const Array& functions = Array::Handle(cls.functions());
+  Function& func = Function::Handle();
+  for (intptr_t i = 0; i < functions.Length(); i++) {
+    func ^= functions.At(i);
+    ASSERT(!func.IsNull());
+    error = CompileFunction(func);
+    if (!error.IsNull()) {
+      return error.raw();
+    }
+  }
+
+  return error.raw();
+}
+
+
+static RawError* CompileLibrary(const Library& lib) {
+  if (FLAG_trace_precompiler) {
+    OS::Print("Precompiling %s\n", lib.ToCString());
+  }
+  ClassDictionaryIterator it(lib, ClassDictionaryIterator::kIteratePrivate);
+  Class& cls = Class::Handle();
+  Error& error = Error::Handle();
+  while (it.HasNext()) {
+    cls = it.GetNextClass();
+    error = CompileClass(cls);
+    if (!error.IsNull()) {
+      return error.raw();
+    }
+  }
+
+  return error.raw();
+}
+
+
+static RawError* InnerCompileAll() {
+  Error& error = Error::Handle();
+  const GrowableObjectArray& libs = GrowableObjectArray::Handle(
+      Isolate::Current()->object_store()->libraries());
+  Library& lib = Library::Handle();
+  for (int i = 0; i < libs.Length(); i++) {
+    lib ^= libs.At(i);
+    error = CompileLibrary(lib);
+    if (!error.IsNull()) {
+      return error.raw();
+    }
+  }
+
+  if (FLAG_trace_precompiler) {
+    OS::Print("** Precompiling collected closures **\n");
+  }
+
+  const GrowableObjectArray& closures =
+    GrowableObjectArray::Handle(Isolate::Current()->collected_closures());
+  Function& func = Function::Handle();
+  if (!closures.IsNull()) {
+    for (int i = 0; i < closures.Length(); i++) {
+      func ^= closures.At(i);
+      error = CompileFunction(func);
+      if (!error.IsNull()) {
+        return error.raw();
+      }
+    }
+  }
+  Isolate::Current()->set_collected_closures(GrowableObjectArray::Handle());
+
+  if (FLAG_trace_precompiler) {
+    OS::Print("*** Done precompiling ***\n");
+  }
+  Isolate::Current()->set_compilation_allowed(false);
+  return error.raw();
+}
+
+
+RawError* Precompiler::CompileAll() {
+  LongJumpScope jump;
+  if (setjmp(*jump.Set()) == 0) {
+    return InnerCompileAll();
+  } else {
+    Isolate* isolate = Isolate::Current();
+    const Error& error = Error::Handle(isolate,
+                                       isolate->object_store()->sticky_error());
+    isolate->object_store()->clear_sticky_error();
+    return error.raw();
+  }
+}
+
+}  // namespace dart