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path: root/lib/Frontend/ASTMerge.cpp
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2010-02-11When AST merging for record declarations fails, warn about theDouglas Gregor
incompatibility and show where the structural differences are. For example: struct1.c:36:8: warning: type 'struct S7' has incompatible definitions in different translation units struct S7 { int i : 8; unsigned j : 8; } x7; ^ struct1.c:36:33: note: bit-field 'j' with type 'unsigned int' and length 8 here struct S7 { int i : 8; unsigned j : 8; } x7; ^ struct2.c:33:33: note: bit-field 'j' with type 'unsigned int' and length 16 here struct S7 { int i : 8; unsigned j : 16; } x7; ^ There are a few changes to make this work: - ASTImporter now has only a single Diagnostic object, not multiple diagnostic objects. Otherwise, having a warning/error printed via one Diagnostic and its note printed on the other Diagnostic could cause the note to be suppressed. - Implemented import functionality for IntegerLiteral (along with general support for statements and expressions) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Implement basic support for merging function declarations acrossDouglas Gregor
translation units. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Teach AST merging that variables with incomplete array types can beDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95782 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Implement basic support for importing source locations from one ASTDouglas Gregor
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!). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Hook up the diagnostics-argument printer when merging AST files, soDouglas Gregor
that we get readable diagnostics such as: error: external variable 'x1' declared with incompatible types in different translation units ('double *' vs. 'float **') However, there is no translation of source locations, yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95704 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-09Introduce a testbed for merging multiple ASTs into a single ASTDouglas Gregor
context with the AST importer. WIP, still useless but at least it has a test. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95683 91177308-0d34-0410-b5e6-96231b3b80d8