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path: root/lldb/source/Expression/ClangUtilityFunction.cpp
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* Fixed object lifetimes in ClangExpressionDeclMapSean Callanan2010-12-031-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | so that it is not referring to potentially stale state during IR execution. This was done by introducing modular state (like ClangExpressionVariable) where groups of state variables have well-defined lifetimes: - m_parser_vars are specific to parsing, and only exist between calls to WillParse() and DidParse(). - m_struct_vars survive for the entire execution of the ClangExpressionDeclMap because they provide the template for a materialized set of expression variables. - m_material_vars are specific to a single instance of materialization, and only exist between calls to Materialize() and Dematerialize(). I also removed unnecessary references to long- lived state that really didn't need to be referred to at all, and also introduced several assert()s that helped me diagnose a few bugs (fixed too). llvm-svn: 120778
* Cleaned a few build related things up:Greg Clayton2010-09-241-0/+4
| | | | | | | | | | Added a virtual destructor to ClangUtilityFunction with a body to it cleans itself up. Moved our SharingPtr into the lldb_private namespace to keep it easy to make an exports file that exports only what is needed ("lldb::*"). llvm-svn: 114771
* Bugfixes to the expression parser. Fixes include:Sean Callanan2010-09-131-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - If you put a semicolon at the end of an expression, this no longer causes the expression parser to error out. This was a two-part fix: first, ClangExpressionDeclMap::Materialize now handles an empty struct (such as when there is no return value); second, ASTResultSynthesizer walks backward from the end of the ASTs until it reaches something that's not a NullStmt. - ClangExpressionVariable now properly byte-swaps when printing itself. - ClangUtilityFunction now cleans up after itself when it's done compiling itself. - Utility functions can now use external functions just like user expressions. - If you end your expression with a statement that does not return a value, the expression now runs correctly anyway. Also, added the beginnings of an Objective-C object validator function, which is neither installed nor used as yet. llvm-svn: 113789
* Added support for dynamic sanity checking inSean Callanan2010-09-011-2/+10
| | | | | | | | | | | | | | | | | | | expressions. Values used by the expression are checked by validation functions which cause the program to crash if the values are unsafe. Major changes: - Added IRDynamicChecks.[ch], which contains the core code related to this feature - Modified CommandObjectExpression to install the validator functions into the target process. - Added an accessor to Process that gets/sets the helper functions llvm-svn: 112690
* Added a ClangUtilityFunction class that allows theSean Callanan2010-08-271-0/+116
debugger to insert self-contained functions for use by expressions (mainly for error-checking). In order to support detecting whether a crash occurred in one of these helpers -- currently our preferred way of reporting that an error-check failed -- added a bit of support for getting the extent of a JITted function in addition to just its base. llvm-svn: 112324
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