Commit Graph

8 Commits

Author SHA1 Message Date
Douglas Gregor c8be95274d When instantiating a function that was declared via a typedef, e.g.,
typedef int functype(int, int);
    functype func;

also instantiate the synthesized function parameters for the resulting
function declaration. 

With this change, Boost.Wave builds and passes all of its regression
tests.

llvm-svn: 103025
2010-05-04 18:18:31 +00:00
Douglas Gregor 14cf752486 Clean up our handling of local instantiation scopes, which keep track
of the mapping from local declarations to their instantiated
counterparts during template instantiation. Previously, we tried to do
some unholy merging of local instantiation scopes that involved
storing a single hash table along with an "undo" list on the
side... which was ugly, and never handled function parameters
properly.

Now, we just keep separate hash tables for each local instantiation
scope, and "combining" two scopes means that we'll look in each of the
combined hash tables. The combined scope stack is rarely deep, and
this makes it easy to avoid the "undo" issues we were hitting. Also,
I've simplified the logic for function parameters: if we're declaring
a function and we need the function parameters to live longer, we just
push them back into the local instantiation scope where we need them. 

Fixes PR6990.

llvm-svn: 102732
2010-04-30 18:55:50 +00:00
Douglas Gregor a02bb34155 When the qualifier of a id-expression is non-dependent but not
complete, return an error rather than falling back to building a
dependent declaration reference, since we might not be in a dependent
context. Fixes a fiendish crash-on-invalid in Boost.FunctionTypes that
I wasn't able to reduce to anything useful.

llvm-svn: 102491
2010-04-28 07:04:26 +00:00
Jeffrey Yasskin c76498d409 Make CXXScopeSpec invalid when incomplete, and propagate that into any
Declarator that depends on it.  This fixes several redundant errors and bad
recoveries.

llvm-svn: 100779
2010-04-08 16:38:48 +00:00
Douglas Gregor 607f14168a Improve diagnostics when printing a template instantiation backtrace
involving substitution of deduced template arguments into a class
template partial specialization or function template, or when
substituting explicitly-specific template arguments into a function
template. We now print the actual deduced argument bindings so the
user can see what got deduced.

llvm-svn: 99923
2010-03-30 20:35:20 +00:00
Douglas Gregor 66767ea93c Add another test for weird substitutions into function types during template argument deduction
llvm-svn: 99510
2010-03-25 15:42:11 +00:00
Douglas Gregor da61afaf9d Improve our handling of local instantiation scopes in two related ways:
- When substituting template arguments as part of template argument
    deduction, introduce a new local instantiation scope.
  - When substituting into a function prototype type, introduce a new
    "temporary" local instantiation scope that merges with its outer
    scope but also keeps track of any additions it makes, removing
    them when we exit that scope.

Fixes PR6700, where we were getting too much mixing of local
instantiation scopes due to template argument deduction that
substituted results into function types.

llvm-svn: 99509
2010-03-25 15:38:42 +00:00
Douglas Gregor 5112157958 Each non-local class instantiation is its own local instantiation
scope. Fixes PR6619.

llvm-svn: 99377
2010-03-24 01:33:17 +00:00