need facility to find token between two source ranges - was: SourceLocation of ? and : in clang::ConditionalOperator

[llvmbot]

Bugzilla Link	3765
Resolution	FIXED
Resolved on	Jul 07, 2016 05:23
Version	unspecified
OS	All
Reporter	LLVM Bugzilla Contributor
CC	@Abramo-Bagnara,@tkremenek

Extended Description

The clang::ConditionalOperator class does not seem to provide a way to get the location of the operator's tokens themselves.

Would it possible add the member functions that return the location of ?' and :'?

[lattner]

We don't aim to track the source location of every token in the AST. Would it be possible to make a raw lexer starting at the end of the source range of the condition, lex one token and that is your "?" node? This will work in the absence of macros.

[tkremenek]

We don't aim to track the source location of every token in the AST. Would it
be possible to make a raw lexer starting at the end of the source range of the
condition, lex one token and that is your "?" node? This will work in the
absence of macros.

We could potentially add a method to ConditionalExpr that does just this.

[lattner]

*** Bug #4123 has been marked as a duplicate of this bug. ***

[Abramo-Bagnara]

Currently there are methods to get the locations for both operator tokens.