diff options
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 49 |
1 files changed, 49 insertions, 0 deletions
@@ -5962,4 +5962,53 @@ fndecl_built_in_p (const_tree node, built_in_function name) && DECL_FUNCTION_CODE (node) == name); } +/* A struct for encapsulating location information about an operator + and the operation built from it. + + m_operator_loc is the location of the operator + m_combined_loc is the location of the compound expression. + + For example, given "a && b" the, operator location is: + a && b + ^~ + and the combined location is: + a && b + ~~^~~~ + Capturing this information allows for class binary_op_rich_location + to provide detailed information about e.g. type mismatches in binary + operations where enough location information is available: + + arg_0 op arg_1 + ~~~~~ ^~ ~~~~~ + | | + | arg1 type + arg0 type + + falling back to just showing the combined location: + + arg_0 op arg_1 + ~~~~~~^~~~~~~~ + + where it is not. */ + +struct op_location_t +{ + location_t m_operator_loc; + location_t m_combined_loc; + + /* 1-argument ctor, for constructing from a combined location. */ + op_location_t (location_t combined_loc) + : m_operator_loc (UNKNOWN_LOCATION), m_combined_loc (combined_loc) + {} + + /* 2-argument ctor, for distinguishing between the operator's location + and the combined location. */ + op_location_t (location_t operator_loc, location_t combined_loc) + : m_operator_loc (operator_loc), m_combined_loc (combined_loc) + {} + + /* Implicitly convert back to a location_t, using the combined location. */ + operator location_t () const { return m_combined_loc; } +}; + #endif /* GCC_TREE_H */ |