53 lines
1.3 KiB
D
53 lines
1.3 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.pokemon;
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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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/**
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* Checks for Pokémon exception handling, i.e. "gotta' catch 'em all".
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*
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* ---
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* catch (Exception e)
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* ...
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* ---
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*/
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class PokemonExceptionCheck : 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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override void visit(Catch c)
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{
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if (c.type.type2.symbol.identifierOrTemplateChain.identifiersOrTemplateInstances.length != 1)
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{
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c.accept(this);
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return;
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}
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auto identOrTemplate = c.type.type2.symbol.identifierOrTemplateChain.identifiersOrTemplateInstances[0];
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if (identOrTemplate.templateInstance !is null)
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{
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c.accept(this);
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return;
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}
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if (identOrTemplate.identifier.text == "Exception"
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|| identOrTemplate.identifier.text == "Throwable"
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|| identOrTemplate.identifier.text == "Error")
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{
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immutable column = identOrTemplate.identifier.column;
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immutable line = identOrTemplate.identifier.line;
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addErrorMessage(line, column, "Avoid catching Exception, Error, and Throwable");
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}
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c.accept(this);
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}
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}
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