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2006-02-13 Hristian Kirtchev <kirtchev@adacore.com> Ed Schonberg <schonberg@adacore.com> Gary Dismukes <dismukes@adacore.com> * sem_ch10.adb (Check_Redundant_Withs): New procedure in Analyze_Compilation_Unit. Detect and warn on redundant with clauses detected in a package spec and/or body when -gnatwr is used. (Analyze_Context): Analyze config pragmas before other items (Install_Context_Items): Don't analyze config pragmas here (Install_Limited_Withed_Unit): Set limited entity of package in with_clause so that cross-reference information or warning messages on unused packages can be properly generated (Is_Visible_Through_Renamings): Return false if the limited_with_clause has Error_Posted set. Prevent infinite loops in illegal programs. (Check_Private_Child_Unit): Move test for a nonprivate with clause down to the point of the error test requiring the current unit to be private. This ensures that private with clauses are not exempted from the basic checking for being a descendant of the same library unit parent as a withed private descendant unit. (Check_Private_Limited_Withed_Unit): Revise the checking algorithm to handle private with clauses properly, as well as to account for cases where the withed unit is a public descendant of a private ancestor (in which case the current unit must be a descendant of the private ancestor's parent). The spec comments were updated accordingly. Also, the old error message in this subprogram was replaced with error messages that mirror the errors tested and reported by Check_Private_Child_Unit. Parameter and variable names improved for readability. (Install_Limited_Context_Clauses): Remove test for a withed unit being private as the precondition for calling Check_Private_Limited_Withed_Unit since that subprogram has been revised to test public units as well as private units. From-SVN: r111090 |
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