D-Scanner/src/analysis/enumarrayliteral.d

50 lines
1.3 KiB
D

// Copyright Brian Schott (Hackerpilot) 2014.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
module analysis.enumarrayliteral;
import std.d.ast;
import std.d.lexer;
import analysis.base;
void doNothing(string, size_t, size_t, string, bool) {}
class EnumArrayLiteralCheck : BaseAnalyzer
{
alias visit = BaseAnalyzer.visit;
this(string fileName)
{
super(fileName);
}
bool looking = false;
mixin visitTemplate!ClassDeclaration;
mixin visitTemplate!InterfaceDeclaration;
mixin visitTemplate!UnionDeclaration;
mixin visitTemplate!StructDeclaration;
override void visit(const AutoDeclaration autoDec)
{
if (autoDec.storageClass && autoDec.storageClass.token == tok!"enum")
{
foreach (i, initializer; autoDec.initializers)
{
if (initializer is null) continue;
if (initializer.nonVoidInitializer is null) continue;
if (initializer.nonVoidInitializer.arrayInitializer is null) continue;
addErrorMessage(autoDec.identifiers[i].line,
autoDec.identifiers[i].column, "dscanner.performance.enum_array_literal",
"This enum may lead to unnecessary allocation at run-time."
~ " Use 'static immutable " ~ autoDec.identifiers[i].text
~ " = [ ...' instead.");
}
}
autoDec.accept(this);
}
}