<div dir="ltr"><div>I don't think there is a bug in this case. The **argument** of the initialiser is indeed "empty bracket uniform initialiser curly moustache pair" or "DeclRefExpr to the variable named t" in your t1 and t2 case. Because the initialiser expression is the thing between the brackets. The remaining part is an "instruction" (purposefully not saying statement here) that tells the compiler that the given expression should be used to initialise the given variable.</div><div><br></div><div>It's like saying "T t = new T();". "new T()" is the constructing expression here, not the whole line. The whole line is the one that defines (and equal-initialises) the variable.<br></div><div><br></div><div>However, 'CXXCtorInitializer' has a 'getSourceRange()' method, per documentation "Determine the source range covering the entire initializer.". You might have some luck with that.</div><div>According to the code, it goes matching the rightmost parenthesis of the initialiser. (And in case you use member-init-expressions in a record, it will use the something like the "= 123812" part.)</div></div><br><div class="gmail_quote"><div dir="ltr">Julian Mueller via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org">cfe-dev@lists.llvm.org</a>> ezt írta (időpont: 2018. dec. 21., P, 11:46):<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hello,<div><br></div><div>I am using <i>CXXCtorInitializer</i>'s method <i>getInit()</i> to retrieve its <i>Init</i> Stmt*.<br>The <i>CXXCtorInitializer::Init</i> field is described as followed:</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><i>"The argument used to initialize the base or member, which may end up constructing an object (when multiple arguments are involved)."</i></blockquote><div><div><br></div><div>In my usecase I actually want to retrieve the underlying source text, that is represented by <i>Init.</i></div><div><i><br></i></div><div>This works fine for simple Initializers using declRefExpr or integerLiterals.<br></div><div>Retrieving the source's text for the <i>Init</i> expr returns <i>i </i>and <i>10</i> for the following CXXCtorInitializer:</div><div><i><br></i></div><div><i>SomeConstructor(int i):m_foo(i), m_bar(10){}</i></div><div><i><br></i></div><div>I haven't figured out what exactly is the problem, but as far as I can tell the <i>Init</i> pointer appears faulty in some cases when there is a <i>CXXConstructExpr involved.</i></div><div><i><br></i></div><div>Given:</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><i>struct T {};<br></i><i>struct Foo{<br></i><i> Foo(T t): t0(new T()), t1({}), t2(t){}</i><i><br></i><i> T * t0;<br></i><i> T t1;<br></i><i> T t2;<br></i><i>};</i></blockquote><div><br></div><div>Retrieving the <i>Init</i> and it's underlying source text returns:</div><div>for t0: "<i>new T()</i>" <----- as expected :)</div><div>for t1: "<i>t1({})</i>" <----- expected: "<i>{}</i>" </div><div>for t2: "<i>t2(t)</i>" <---- expected: "<i>t</i>"</div><div><br></div><div>Since the Docu states, the <i>Init</i> gives the<i> "</i><i>argument used to initialize the [...] member"</i> I think this might be a bug? Maybe I don't retrieve the source code correctly, but in any other case it appears to work just fine.</div><div><div>I use the Lexer to get to the<i> Init</i>'s source like this, where expr is <i>cxxCtorInitializer->getInit()</i>:</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><i>Lexer::getSourceText(CharSourceRange::getCharRange(expr->getSourceRange()), ctxt.getSourceManager(), ctxt.getLangOpts());</i></blockquote><div><i><br></i></div><div>So is this expected behavior? If so why? And how can I get to the actual 'Initializer' in those cases?</div><div><br></div><div>Any help appreciated!</div><br class="gmail-m_934411665833066435gmail-Apple-interchange-newline"></div>-- <br><div dir="ltr" class="gmail-m_934411665833066435gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Mit freundlichen Grüßen,</div><div>Julian Müller<div><br></div></div></div></div></div></div></div></div></div></div>
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