Remove code for computing summaries based on the Fasta parser.

pkg/analyzer/lib/src/summary/fasta/visitor.dart

-// Copyright (c) 2017, 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.
-
-/// Visitor of the simplified expression syntax tree.
-library summary.src.visitor;
-
-import 'expressions.dart';
-
-/// Post-order recursive visitor.
-///
-/// Will invoke `handle*` methods in post order (children first, parents
-/// afterwards).
-class RecursiveVisitor extends Visitor {
-  visitAs(As n) {
-    n.exp.accept(this);
-    handleAs(n);
-  }
-
-  visitBinary(Binary n) {
-    n.left.accept(this);
-    n.right.accept(this);
-    handleBinary(n);
-  }
-
-  visitConditional(Conditional n) {
-    n.test.accept(this);
-    n.trueBranch.accept(this);
-    n.falseBranch.accept(this);
-    handleConditional(n);
-  }
-
-  visitConstCreation(ConstCreation n) {
-    for (var arg in n.positionalArgs) {
-      arg.accept(this);
-    }
-    for (var arg in n.namedArgs) {
-      arg.value.accept(this);
-    }
-    handleConstCreation(n);
-  }
-
-  visitIdentical(Identical n) {
-    n.left.accept(this);
-    n.right.accept(this);
-    handleIdentical(n);
-  }
-
-  visitIs(Is n) {
-    n.exp.accept(this);
-    handleIs(n);
-  }
-
-  visitList(ListLiteral n) {
-    for (var v in n.values) {
-      v.accept(this);
-    }
-    handleList(n);
-  }
-
-  visitLoad(Load n) {
-    n.left.accept(this);
-    handleLoad(n);
-  }
-
-  visitMap(MapLiteral n) {
-    for (var v in n.values) {
-      v.key.accept(this);
-      v.value.accept(this);
-    }
-    handleMap(n);
-  }
-
-  visitOpaqueOp(OpaqueOp n) {
-    n.exp.accept(this);
-    handleOpaqueOp(n);
-  }
-
-  visitUnary(Unary n) {
-    n.exp.accept(this);
-    handleUnary(n);
-  }
-}
-
-/// Plain non-recursive visitor.
-class Visitor {
-  // References
-
-  handleAs(As n) {}
-  handleBinary(Binary n) {}
-
-  // Literals
-
-  handleBool(BoolLiteral n) {}
-  handleConditional(Conditional n) {}
-  handleConstCreation(ConstCreation n) {}
-  handleDouble(DoubleLiteral n) {}
-  handleIdentical(Identical n) {}
-  handleInt(IntLiteral n) {}
-  handleInvalid(Invalid n) {}
-  handleIs(Is n) {}
-
-  handleList(ListLiteral n) {}
-  handleLoad(Load n) {}
-  handleMap(MapLiteral n) {}
-  handleNull(NullLiteral n) {}
-  handleOpaque(Opaque n) {}
-  handleOpaqueOp(OpaqueOp n) {}
-  handleRef(Ref n) {}
-  handleString(StringLiteral n) {}
-
-  // Compound expressions
-
-  handleSymbol(SymbolLiteral n) {}
-  handleUnary(Unary n) {}
-  visitAs(As n) => handleAs(n);
-  visitBinary(Binary n) => handleBinary(n);
-  visitBool(BoolLiteral n) => handleBool(n);
-  visitConditional(Conditional n) => handleConditional(n);
-  visitConstCreation(ConstCreation n) => handleConstCreation(n);
-  visitDouble(DoubleLiteral n) => handleDouble(n);
-
-  visitIdentical(Identical n) => handleIdentical(n);
-  visitInt(IntLiteral n) => handleInt(n);
-  visitInvalid(Invalid n) => handleInvalid(n);
-  visitIs(Is n) => handleIs(n);
-  visitList(ListLiteral n) => handleList(n);
-  visitLoad(Load n) => handleLoad(n);
-  visitMap(MapLiteral n) => handleMap(n);
-  visitNull(NullLiteral n) => handleNull(n);
-
-  // Non-traditional expressions.
-
-  visitOpaque(Opaque n) => handleOpaque(n);
-  visitOpaqueOp(OpaqueOp n) => handleOpaqueOp(n);
-  visitRef(Ref n) => handleRef(n);
-
-  visitString(StringLiteral n) => handleString(n);
-  visitSymbol(SymbolLiteral n) => handleSymbol(n);
-  visitUnary(Unary n) => handleUnary(n);
-}