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2013-10-13 Hristian Kirtchev <kirtchev@adacore.com> * einfo.adb: Add node/list usage for Refined_State and Refinement_Constituents. (Get_Pragma): Update the initialization of Is_CDG to include Refined_Global and Refined_Depends. Rename constant Delayed to In_Contract and update all of its occurrences. (Is_Non_Volatile_State): New routine. (Is_Volatile_State): Removed. (Refined_State): New routine. (Refinement_Constituents): New routine. (Set_Refined_State): New routine. (Set_Refinement_Constituents): New routine. (Write_Field8_Name): Add output for Refinement_Constituents. (Write_Field10_Name): Add output for Refined_State. * einfo.ads: Add new synthesized attribute Is_Non_Volatile_State. Remove synthesized attribute Is_Volatile_State. Add new attributes Refined_State and Refinement_Constituents along with usage in nodes. (Get_Pragma): Update the comment on usage. (Is_Non_Volatile_State): New routine. (Is_Volatile_State): Removed. (Refined_State): New routine and pragma Inline. (Refinement_Constituents): New routine and pragma Inline. (Set_Refined_State): New routine and pragma Inline. (Set_Refinement_Constituents): New routine and pragma Inline. * elists.ads, elists.adb (Clone): Removed. (New_Copy_Elist): New routine. (Remove): New routine. * sem_ch3.adb (Analyze_Declarations): Use Defining_Entity to get the entity of the subprogram [body]. (Analyze_Object_Declaration): Add initialization for Refined_State. * sem_ch6.adb (Analyze_Subprogram_Body_Contract): Add processing for Refined_Global and Refined_Depends. Emit an error when the body requires Refined_Global, but the aspect/pragma is not present. * sem_ch6.ads (Analyze_Subprogram_Body_Contract): Change procedure signature and add comment on usage. * sem_ch13.adb (Analyze_Aspect_Specifications): Add processing for aspect Refined_Global. * sem_prag.adb (Analyze_Abstract_State): Add initialization of attributes Refined_State and Refinement_Constituents. (Analyze_Depends_In_Decl_Part, Analyze_Global_In_Decl_Part, Analyze_Contract_Cases_In_Decl_Part): Remove local constant Arg1. (Analyze_Pragma): Add processing for pragma Refined_Global. The analysis of Refined_Post and Refined_Pre has been merged. Update an error message in the processing of pragma Refined_State. (Analyze_Refined_Global_In_Decl_Part): Provide implementation. (Analyze_Refined_Pragma): New routine. (Analyze_Refined_Pre_Post_Condition): Removed. (Analyze_Refined_State_In_Decl_Part): Update the call to Clone. (Analyze_Refinement_Clause): Make State_Id visible to all nested subprogram. (Check_Matching_Constituent): Establish a relation between a refined state and its constituent. (Collect_Hidden_States_In_Decls): Remove ??? comment. Look at the entity of the object declaration to establish its kind. * sem_util.adb: Alphabetize with and use clauses. (Contains_Refined_State): New routine. * sem_util.ads (Contains_Refined_State): New routine. From-SVN: r203504
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