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Extract appending nodes to the list into a helper method.
R=brianwilkerson@google.com, paulberry@google.com BUG= Review URL: https://codereview.chromium.org/2417053002 .
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@ -197,14 +197,9 @@ class SdkPatcher {
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patchMember.offset);
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}
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}
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// Append new top-level declarations.
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Token lastToken = baseClass.endToken.previous;
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for (ClassMember newMember in membersToAppend) {
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newMember.endToken.setNext(lastToken.next);
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lastToken.setNext(newMember.beginToken);
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baseClass.members.add(newMember);
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lastToken = newMember.endToken;
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}
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// Append new class members.
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_appendToNodeList(
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baseClass.members, membersToAppend, baseClass.leftBracket);
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}
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void _patchDirectives(
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@ -279,13 +274,8 @@ class SdkPatcher {
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}
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}
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// Append new top-level declarations.
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Token lastToken = baseUnit.endToken.previous;
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for (CompilationUnitMember newDeclaration in declarationsToAppend) {
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newDeclaration.endToken.setNext(lastToken.next);
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lastToken.setNext(newDeclaration.beginToken);
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baseUnit.declarations.add(newDeclaration);
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lastToken = newDeclaration.endToken;
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}
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_appendToNodeList(baseUnit.declarations, declarationsToAppend,
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baseUnit.endToken.previous);
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}
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/**
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@ -309,6 +299,21 @@ class SdkPatcher {
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return unit;
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}
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/**
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* Append [newNodes] to the given [nodes] and attach new tokens to the end
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* token of the last [nodes] items, or, if it is empty, to [defaultPrevToken].
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*/
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static void _appendToNodeList(
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NodeList<AstNode> nodes, List<AstNode> newNodes, Token defaultPrevToken) {
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Token prevToken = nodes.endToken ?? defaultPrevToken;
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for (AstNode newNode in newNodes) {
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newNode.endToken.setNext(prevToken.next);
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prevToken.setNext(newNode.beginToken);
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nodes.add(newNode);
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prevToken = newNode.endToken;
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}
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}
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/**
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* Return `true` if [metadata] has the `@patch` annotation.
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*/
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