Move helpers and interceptors to own library.

dart/frog/leg/ssa/builder.dart

 // 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.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 27 matching lines @@
     if (name === '|=') return const SourceString('or');
     if (name === '&=') return const SourceString('and');
     if (name === '^=') return const SourceString('xor');
     if (name === '++') return const SourceString('add');
     if (name === '--') return const SourceString('sub');
     compiler.unimplemented('Unknown operator', node: op);
   }
 
   Element getStaticInterceptor(SourceString name, int parameters) {
     String mangledName = "builtin\$${name}\$${parameters}";
-    Element result = compiler.coreLibrary.find(new SourceString(mangledName));
+    Element result = compiler.findHelper(new SourceString(mangledName));
     return result;
   }
 
   Element getStaticGetInterceptor(SourceString name) {
     String mangledName = "builtin\$get\$${name}";
-    Element result = compiler.coreLibrary.find(new SourceString(mangledName));
+    Element result = compiler.findHelper(new SourceString(mangledName));
     return result;
   }
 
   Element getOperatorInterceptor(Operator op) {
     SourceString name = mapOperatorToMethodName(op);
-    Element result = compiler.coreLibrary.find(name);
+    Element result = compiler.findHelper(name);
     return result;
   }
 
   Element getPrefixOperatorInterceptor(Operator op) {
     String name = op.source.stringValue;
     if (name === '~') {
-      return compiler.coreLibrary.find(const SourceString('not'));
+      return compiler.findHelper(const SourceString('not'));
     }
     if (name === '-') {
-      return compiler.coreLibrary.find(const SourceString('neg'));
+      return compiler.findHelper(const SourceString('neg'));
     }
     compiler.unimplemented('Unknown operator', node: op);
   }
 
   Element getIndexInterceptor() {
-    return compiler.coreLibrary.find(const SourceString('index'));
+    return compiler.findHelper(const SourceString('index'));
   }
 
   Element getIndexAssignmentInterceptor() {
-    return compiler.coreLibrary.find(const SourceString('indexSet'));
+    return compiler.findHelper(const SourceString('indexSet'));
   }
 
   Element getEqualsNullInterceptor() {
-    return compiler.coreLibrary.find(const SourceString('eqNull'));
+    return compiler.findHelper(const SourceString('eqNull'));
   }
 }
 
 class SsaBuilderTask extends CompilerTask {
   SsaBuilderTask(Compiler compiler)
     : super(compiler), interceptors = new Interceptors(compiler);
   String get name() => 'SSA builder';
   Interceptors interceptors;
 
   HGraph build(WorkItem work) {
@@ skipping 1809 matching lines @@
   }
 
   visitCatchBlock(CatchBlock node) {
     visit(node.block);
   }
 
   visitTypedef(Typedef node) {
     compiler.unimplemented('SsaBuilder.visitTypedef', node: node);
   }
 }