Commit Graph

158 Commits

Author SHA1 Message Date
Douglas Gregor fa7a0e5198 Implement AST importing and merging for typedefs. As part of this, provide a lame implementation for importing TypeSourceInfos.
llvm-svn: 95783
2010-02-10 17:47:19 +00:00
Douglas Gregor 2fbe558cfe Teach AST merging that variables with incomplete array types can be
merged with variables of constant array types. Also, make sure that we
call DiagnosticClient's BeginSourceFile/EndSourceFile, so that it has
a LangOptions to work with.

llvm-svn: 95782
2010-02-10 17:16:49 +00:00
Douglas Gregor 811663eb11 Implement basic support for importing source locations from one AST
into another AST, including their include history. Here's an example
error that involves a conflict merging a variable with different types
in two translation units (diagnosed in the third AST context into
which everything is merged).

/Volumes/Data/dgregor/Projects/llvm/tools/clang/test/ASTMerge/Inputs/var2.c:3:5:
error: external variable 'x2' declared with incompatible types in
different translation units ('int' vs. 'double')
int x2;
    ^
In file included from
/Volumes/Data/dgregor/Projects/llvm/tools/clang/test/ASTMerge/Inputs/var1.c:3:
/Volumes/Data/dgregor/Projects/llvm/tools/clang/test/ASTMerge/Inputs/var1.h:1:8:
note: declared here with type 'double'
double x2;
       ^

Although we maintain include history, we do not maintain macro
instantiation history across a merge. Instead, we map down to the
spelling location (for now!).

llvm-svn: 95732
2010-02-10 00:15:17 +00:00
Douglas Gregor e4c83e4e2e Complain about types and declarations that we don't know how to import.
llvm-svn: 95706
2010-02-09 22:48:33 +00:00
Douglas Gregor 62d311fdf4 Introduce a testbed for merging multiple ASTs into a single AST
context with the AST importer. WIP, still useless but at least it has
a test.

llvm-svn: 95683
2010-02-09 19:21:46 +00:00
Douglas Gregor 3aed6cdd5e Implement basic importing and merging of variable declarations within
the AST importer. This doesn't actually do anything (yet), because we
don't have driver logic for merging ASTs.

llvm-svn: 95570
2010-02-08 21:09:39 +00:00
Douglas Gregor f65bbb31e8 Cache imported types
llvm-svn: 95543
2010-02-08 15:18:58 +00:00
Douglas Gregor 96e578d29d Initial skeleton of an AST "importer", which will take AST elements from
one context and import them into another context, merging them
according to language-specific rules. This is a skeleton. It doesn't
work, it isn't testable, but I want it in version control.

llvm-svn: 95395
2010-02-05 17:54:41 +00:00