73 lines
1.7 KiB
D
73 lines
1.7 KiB
D
// Copyright Brian Schott (Sir Alaran) 2014.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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module analysis.enumarrayliteral;
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import stdx.d.ast;
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import stdx.d.lexer;
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import analysis.base;
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void doNothing(string, size_t, size_t, string, bool) {}
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class EnumArrayLiteralCheck : BaseAnalyzer
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{
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alias visit = BaseAnalyzer.visit;
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this(string fileName)
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{
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super(fileName);
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}
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bool inAggregate = false;
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bool looking = false;
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template visitTemplate(T)
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{
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override void visit(T structDec)
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{
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inAggregate = true;
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structDec.accept(this);
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inAggregate = false;
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}
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}
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mixin visitTemplate!ClassDeclaration;
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mixin visitTemplate!InterfaceDeclaration;
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mixin visitTemplate!UnionDeclaration;
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mixin visitTemplate!StructDeclaration;
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override void visit(Declaration dec)
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{
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if (inAggregate) foreach (attr; dec.attributes)
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{
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if (attr.storageClass !is null &&
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attr.storageClass.token == tok!"enum")
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{
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looking = true;
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}
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}
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dec.accept(this);
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looking = false;
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}
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override void visit(AutoDeclaration autoDec)
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{
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if (looking)
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{
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foreach (i, initializer; autoDec.initializers)
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{
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if (initializer is null) continue;
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if (initializer.nonVoidInitializer is null) continue;
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if (initializer.nonVoidInitializer.arrayInitializer is null) continue;
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addErrorMessage(autoDec.identifiers[i].line,
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autoDec.identifiers[i].column, "This enum may lead to "
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~ "unnecessary allocation at run-time. Use 'static immutable "
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~ autoDec.identifiers[i].text ~ " = [ ...' instead.");
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}
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}
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autoDec.accept(this);
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}
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}
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