kernel -> ssa: support static invocations and variable gets

pkg/compiler/lib/src/ssa/builder_kernel.dart

 // Copyright (c) 2016, 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.
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../common/codegen.dart' show CodegenRegistry, CodegenWorkItem;
 import '../common/tasks.dart' show CompilerTask;
 import '../compiler.dart';
 import '../diagnostics/spannable.dart';
 import '../elements/elements.dart';
 import '../io/source_information.dart';
 import '../js_backend/backend.dart' show JavaScriptBackend;
 import '../kernel/kernel.dart';
 import '../kernel/kernel_visitor.dart';
 import '../resolution/tree_elements.dart';
 import '../tree/dartstring.dart';
+import '../types/masks.dart';
 
 import 'graph_builder.dart';
 import 'kernel_ast_adapter.dart';
 import 'locals_handler.dart';
 import 'nodes.dart';
 
 class SsaKernelBuilderTask extends CompilerTask {
   final JavaScriptBackend backend;
   final SourceInformationStrategy sourceInformationFactory;
 
@@ skipping 15 matching lines @@
       } catch (e) {
         throw "Failed to convert to Kernel IR: $e";
       }
       KernelSsaBuilder builder = new KernelSsaBuilder(
           function,
           element,
           work.resolvedAst,
           backend.compiler,
           work.registry,
           sourceInformationFactory,
-          visitor);
+          visitor,
+          kernel);
       return builder.build();
     });
   }
 }
 
 class KernelSsaBuilder extends ir.Visitor with GraphBuilder {
   final IrFunction function;
   final FunctionElement functionElement;
   final ResolvedAst resolvedAst;
   final Compiler compiler;
   final CodegenRegistry registry;
 
   JavaScriptBackend get backend => compiler.backend;
 
   LocalsHandler localsHandler;
   SourceInformationBuilder sourceInformationBuilder;
   KernelAstAdapter astAdapter;
 
   KernelSsaBuilder(
       this.function,
       this.functionElement,
       this.resolvedAst,
       this.compiler,
       this.registry,
       SourceInformationStrategy sourceInformationFactory,
-      KernelVisitor visitor) {
+      KernelVisitor visitor,
+      Kernel kernel) {
     graph.element = functionElement;
     // TODO(het): Should sourceInformationBuilder be in GraphBuilder?
     this.sourceInformationBuilder =
         sourceInformationFactory.createBuilderForContext(resolvedAst);
     graph.sourceInformation =
         sourceInformationBuilder.buildVariableDeclaration();
     this.localsHandler =
         new LocalsHandler(this, functionElement, null, compiler);
-    this.astAdapter =
-        new KernelAstAdapter(compiler.backend, resolvedAst, visitor.nodeToAst);
+    this.astAdapter = new KernelAstAdapter(compiler.backend, resolvedAst,
+        visitor.nodeToAst, visitor.nodeToElement, kernel.functions);
   }
 
   HGraph build() {
     // TODO(het): no reason to do this here...
     HInstruction.idCounter = 0;
     if (function.kind == ir.ProcedureKind.Method) {
       buildMethod(function, functionElement);
     } else {
       compiler.reporter.internalError(
           functionElement,
@@ skipping 79 matching lines @@
   }
 
   @override
   visitStringLiteral(ir.StringLiteral stringLiteral) {
     stack.add(graph.addConstantString(
         new DartString.literal(stringLiteral.value), compiler));
   }
 
   @override
   visitSymbolLiteral(ir.SymbolLiteral symbolLiteral) {
-    stack.add(
-        graph.addConstant(astAdapter.getConstantFor(symbolLiteral), compiler));
+    stack.add(graph.addConstant(
+        astAdapter.getConstantForSymbol(symbolLiteral), compiler));
     registry?.registerConstSymbol(symbolLiteral.value);
   }
 
   @override
   visitNullLiteral(ir.NullLiteral nullLiteral) {
     stack.add(graph.addConstantNull(compiler));
   }
+
+  @override
+  visitVariableGet(ir.VariableGet variableGet) {
+    LocalElement local = astAdapter.getElement(variableGet.variable);
+    stack.add(localsHandler.readLocal(local));
+  }
+
+  @override
+  visitStaticInvocation(ir.StaticInvocation invocation) {
+    List<HInstruction> inputs = <HInstruction>[];
+
+    for (ir.Expression argument in invocation.arguments.positional) {
+      argument.accept(this);
+      inputs.add(pop());
+    }
+    for (ir.NamedExpression argument in invocation.arguments.named) {
+      argument.value.accept(this);
+      inputs.add(pop());
+    }
+
+    ir.Procedure target = invocation.target;
+    bool targetCanThrow = astAdapter.getCanThrow(target);
+    TypeMask typeMask = astAdapter.returnTypeOf(target);
+
+    HInstruction instruction = new HInvokeStatic(
+        astAdapter.getElement(target).declaration, inputs, typeMask,
+        targetCanThrow: targetCanThrow);
+    instruction.sideEffects = astAdapter.getSideEffects(target);
+
+    push(instruction);
+  }
+
+  @override
+  visitExpressionStatement(ir.ExpressionStatement exprStatement) {
+    exprStatement.expression.accept(this);
+    pop();
+  }
 }