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infer_clone/infer/tests/codetoanalyze/cpp/frontend/reference/member_access.cpp.dot

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Fix handling of C++ references Summary: @​public This diff changes following things: 1. expression_info.type_ptr has type than decl_ref_info.type_ptr for reference types. Use type from decl_ref_info as a source of truth 2. reference types need to have one extra dereference that is not in AST. Add handling for this. 3. [small refactor] create function that creates temporary variable from res_trans expression and returns new res_trans. Some caveats: 1. types are not quite right yet (see .dot files). 2. decl_ref_info might not be set for DeclRefExpr, make frontend crash in that case to catch when this happens This is high risk change since it changes behavior of every translation on very widely used expr. Reviewed By: @dulmarod Differential Revision: D2540632 fb-gh-sync-id: aa28936
9 years ago
digraph iCFG {
Add extra dereference to the variable of the method call to find null dereferences when a method called with null. Reviewed By: akotulski Differential Revision: D2954284 fb-gh-sync-id: d9079db shipit-source-id: d9079db
9 years ago
11 [label="11: DeclStmt \n n$3=*&x:class X * [line 21]\n n$4=*n$3.f:int [line 21]\n *&f:int =n$4 [line 21]\n REMOVE_TEMPS(n$3,n$4); [line 21]\n NULLIFY(&f,false); [line 21]\n " shape="box"]
Fix handling of C++ references Summary: @​public This diff changes following things: 1. expression_info.type_ptr has type than decl_ref_info.type_ptr for reference types. Use type from decl_ref_info as a source of truth 2. reference types need to have one extra dereference that is not in AST. Add handling for this. 3. [small refactor] create function that creates temporary variable from res_trans expression and returns new res_trans. Some caveats: 1. types are not quite right yet (see .dot files). 2. decl_ref_info might not be set for DeclRefExpr, make frontend crash in that case to catch when this happens This is high risk change since it changes behavior of every translation on very widely used expr. Reviewed By: @dulmarod Differential Revision: D2540632 fb-gh-sync-id: aa28936
9 years ago
11 -> 10 ;
Add extra dereference to the variable of the method call to find null dereferences when a method called with null. Reviewed By: akotulski Differential Revision: D2954284 fb-gh-sync-id: d9079db shipit-source-id: d9079db
9 years ago
10 [label="10: DeclStmt \n n$0=*&x:class X * [line 22]\n n$1=*n$0:class X [line 22]\n n$2=_fun_X_call(n$0:class X *) [line 22]\n *&c:int =n$2 [line 22]\n REMOVE_TEMPS(n$0,n$1,n$2); [line 22]\n NULLIFY(&c,false); [line 22]\n NULLIFY(&x,false); [line 22]\n APPLY_ABSTRACTION; [line 22]\n " shape="box"]
Fix handling of C++ references Summary: @​public This diff changes following things: 1. expression_info.type_ptr has type than decl_ref_info.type_ptr for reference types. Use type from decl_ref_info as a source of truth 2. reference types need to have one extra dereference that is not in AST. Add handling for this. 3. [small refactor] create function that creates temporary variable from res_trans expression and returns new res_trans. Some caveats: 1. types are not quite right yet (see .dot files). 2. decl_ref_info might not be set for DeclRefExpr, make frontend crash in that case to catch when this happens This is high risk change since it changes behavior of every translation on very widely used expr. Reviewed By: @dulmarod Differential Revision: D2540632 fb-gh-sync-id: aa28936
9 years ago
10 -> 9 ;
9 [label="9: Exit access_ptr \n " color=yellow style=filled]
8 [label="8: Start access_ptr\nFormals: x:class X *\nLocals: c:int f:int \n DECLARE_LOCALS(&return,&c,&f); [line 20]\n NULLIFY(&c,false); [line 20]\n NULLIFY(&f,false); [line 20]\n " color=yellow style=filled]
8 -> 11 ;
Add extra dereference to the variable of the method call to find null dereferences when a method called with null. Reviewed By: akotulski Differential Revision: D2954284 fb-gh-sync-id: d9079db shipit-source-id: d9079db
9 years ago
7 [label="7: DeclStmt \n n$3=*&x:class X & [line 16]\n n$4=*n$3.f:int [line 16]\n *&f:int =n$4 [line 16]\n REMOVE_TEMPS(n$3,n$4); [line 16]\n NULLIFY(&f,false); [line 16]\n " shape="box"]
Fix handling of C++ references Summary: @​public This diff changes following things: 1. expression_info.type_ptr has type than decl_ref_info.type_ptr for reference types. Use type from decl_ref_info as a source of truth 2. reference types need to have one extra dereference that is not in AST. Add handling for this. 3. [small refactor] create function that creates temporary variable from res_trans expression and returns new res_trans. Some caveats: 1. types are not quite right yet (see .dot files). 2. decl_ref_info might not be set for DeclRefExpr, make frontend crash in that case to catch when this happens This is high risk change since it changes behavior of every translation on very widely used expr. Reviewed By: @dulmarod Differential Revision: D2540632 fb-gh-sync-id: aa28936
9 years ago
7 -> 6 ;
Add extra dereference to the variable of the method call to find null dereferences when a method called with null. Reviewed By: akotulski Differential Revision: D2954284 fb-gh-sync-id: d9079db shipit-source-id: d9079db
9 years ago
6 [label="6: DeclStmt \n n$0=*&x:class X & [line 17]\n n$1=*n$0:class X [line 17]\n n$2=_fun_X_call(n$0:class X &) [line 17]\n *&c:int =n$2 [line 17]\n REMOVE_TEMPS(n$0,n$1,n$2); [line 17]\n NULLIFY(&c,false); [line 17]\n NULLIFY(&x,false); [line 17]\n APPLY_ABSTRACTION; [line 17]\n " shape="box"]
Fix handling of C++ references Summary: @​public This diff changes following things: 1. expression_info.type_ptr has type than decl_ref_info.type_ptr for reference types. Use type from decl_ref_info as a source of truth 2. reference types need to have one extra dereference that is not in AST. Add handling for this. 3. [small refactor] create function that creates temporary variable from res_trans expression and returns new res_trans. Some caveats: 1. types are not quite right yet (see .dot files). 2. decl_ref_info might not be set for DeclRefExpr, make frontend crash in that case to catch when this happens This is high risk change since it changes behavior of every translation on very widely used expr. Reviewed By: @dulmarod Differential Revision: D2540632 fb-gh-sync-id: aa28936
9 years ago
6 -> 5 ;
5 [label="5: Exit access_ref \n " color=yellow style=filled]
4 [label="4: Start access_ref\nFormals: x:class X &\nLocals: c:int f:int \n DECLARE_LOCALS(&return,&c,&f); [line 15]\n NULLIFY(&c,false); [line 15]\n NULLIFY(&f,false); [line 15]\n " color=yellow style=filled]
4 -> 7 ;
3 [label="3: Return Stmt \n n$0=*&this:class X * [line 12]\n n$1=*n$0.f:int [line 12]\n *&return:int =n$1 [line 12]\n REMOVE_TEMPS(n$0,n$1); [line 12]\n NULLIFY(&this,false); [line 12]\n APPLY_ABSTRACTION; [line 12]\n " shape="box"]
3 -> 2 ;
2 [label="2: Exit X_call \n " color=yellow style=filled]
1 [label="1: Start X_call\nFormals: this:class X *\nLocals: \n DECLARE_LOCALS(&return); [line 12]\n " color=yellow style=filled]
1 -> 3 ;
}