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* Reimplement the structural-equality checks used to determine whetherDouglas Gregor2010-02-153-4/+19
| | | | | | | | | | | | | | two types in different AST contexts are equivalent. Rather than transforming the type from one context into the other context, we perform a deep structural comparison of the types. This change addresses a serious problem with recursive data types like struct ListNode { int value; struct ListNode *Next; } xList; llvm-svn: 96278
* Funnel changes to the ImportedDecls list in the ASTImporter through aDouglas Gregor2010-02-122-0/+13
| | | | | | | single Imported function, in preparation for fixing a serious design flaw. llvm-svn: 96044
* Implement AST importing and merging for enumeration types andDouglas Gregor2010-02-123-0/+94
| | | | | | enumerators, along with ImplicitCastExprs to make it work. llvm-svn: 96024
* Handle AST merges of incomplete class types. Douglas Gregor2010-02-122-0/+19
| | | | llvm-svn: 95941
* When AST merging for record declarations fails, warn about theDouglas Gregor2010-02-113-3/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | 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) llvm-svn: 95900
* Add missing test cases for AST merging of structures.Douglas Gregor2010-02-113-0/+36
| | | | llvm-svn: 95886
* Implement basic support for merging function declarations acrossDouglas Gregor2010-02-103-0/+21
| | | | | | translation units. llvm-svn: 95794
* Implement AST importing and merging for typedefs. As part of this, provide a ↵Douglas Gregor2010-02-104-0/+16
| | | | | | lame implementation for importing TypeSourceInfos. llvm-svn: 95783
* Teach AST merging that variables with incomplete array types can beDouglas Gregor2010-02-103-0/+10
| | | | | | | | 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
* Add missing header fileDouglas Gregor2010-02-101-0/+1
| | | | llvm-svn: 95751
* Implement basic support for importing source locations from one ASTDouglas Gregor2010-02-103-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | 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
* Add in the LIT magic to avoid running AST merge test inputs asDouglas Gregor2010-02-093-2/+1
| | | | | | separate tests. Thanks, Daniel! llvm-svn: 95705
* Hook up the diagnostics-argument printer when merging AST files, soDouglas Gregor2010-02-091-1/+1
| | | | | | | | | | | 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. llvm-svn: 95704
* Introduce a testbed for merging multiple ASTs into a single ASTDouglas Gregor2010-02-093-0/+11
context with the AST importer. WIP, still useless but at least it has a test. llvm-svn: 95683
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