Summary: public Translate template instantiations exported by clang. There is no need to deal with templated code - clang creates one class for each implementation. Reviewed By: dulmarod Differential Revision: D2686269 fb-gh-sync-id: 9249a00master
Andrzej Kotulski
9 years ago
committed by
facebook-github-bot-7
parent
7389dfe976
commit
ddbf4d9c47
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/*
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* Copyright (c) 2015 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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struct Choose1 {
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int div(int a, int b) { return 1 / a; }
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};
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struct Choose2 {
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int div(int a, int b) { return 1 / b; }
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// extra method that is not present in Choose1
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int extra(int a) { return 1 / a; }
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};
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template<class T>
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struct ExecStore {
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T f;
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int call_div(int a) {
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// this will always cause div by 0 for Choose2
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return f.div(a, 0);
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}
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};
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int choose1_div0(ExecStore<Choose1> &s) {
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return s.call_div(0);
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}
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int choose1_div1(ExecStore<Choose1> &s) {
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return s.call_div(1);
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}
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int choose2_div0_no_report(ExecStore<Choose2> &s) {
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// error is already reported for ExecStore<Choose2>::call_div()
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return s.call_div(1);
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}
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int choose2_div0_extra(ExecStore<Choose2> &s) {
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return s.f.extra(0);
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}
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int choose2_div1_extra(ExecStore<Choose2> &s) {
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return s.f.extra(1);
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}
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digraph iCFG {
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30 [label="30: Return Stmt \n n$0=*&s:class ExecStore<Choose2> & [line 49]\n n$1=_fun_Choose2_extra(n$0.f:class Choose2 &,1:int ) [line 49]\n *&return:int =n$1 [line 49]\n REMOVE_TEMPS(n$0,n$1); [line 49]\n NULLIFY(&s,false); [line 49]\n APPLY_ABSTRACTION; [line 49]\n " shape="box"]
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30 -> 29 ;
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29 [label="29: Exit choose2_div1_extra \n " color=yellow style=filled]
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28 [label="28: Start choose2_div1_extra\nFormals: s:class ExecStore<Choose2> &\nLocals: \n DECLARE_LOCALS(&return); [line 48]\n " color=yellow style=filled]
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28 -> 30 ;
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27 [label="27: Return Stmt \n n$0=*&s:class ExecStore<Choose2> & [line 45]\n n$1=_fun_Choose2_extra(n$0.f:class Choose2 &,0:int ) [line 45]\n *&return:int =n$1 [line 45]\n REMOVE_TEMPS(n$0,n$1); [line 45]\n NULLIFY(&s,false); [line 45]\n APPLY_ABSTRACTION; [line 45]\n " shape="box"]
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27 -> 26 ;
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26 [label="26: Exit choose2_div0_extra \n " color=yellow style=filled]
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25 [label="25: Start choose2_div0_extra\nFormals: s:class ExecStore<Choose2> &\nLocals: \n DECLARE_LOCALS(&return); [line 44]\n " color=yellow style=filled]
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25 -> 27 ;
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24 [label="24: Return Stmt \n n$0=*&s:class ExecStore<Choose2> & [line 41]\n n$1=_fun_ExecStore<Choose2>_call_div(n$0:class ExecStore<Choose2> &,1:int ) [line 41]\n *&return:int =n$1 [line 41]\n REMOVE_TEMPS(n$0,n$1); [line 41]\n NULLIFY(&s,false); [line 41]\n APPLY_ABSTRACTION; [line 41]\n " shape="box"]
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24 -> 23 ;
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23 [label="23: Exit choose2_div0_no_report \n " color=yellow style=filled]
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22 [label="22: Start choose2_div0_no_report\nFormals: s:class ExecStore<Choose2> &\nLocals: \n DECLARE_LOCALS(&return); [line 39]\n " color=yellow style=filled]
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22 -> 24 ;
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21 [label="21: Return Stmt \n n$0=*&s:class ExecStore<Choose1> & [line 36]\n n$1=_fun_ExecStore<Choose1>_call_div(n$0:class ExecStore<Choose1> &,1:int ) [line 36]\n *&return:int =n$1 [line 36]\n REMOVE_TEMPS(n$0,n$1); [line 36]\n NULLIFY(&s,false); [line 36]\n APPLY_ABSTRACTION; [line 36]\n " shape="box"]
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21 -> 20 ;
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20 [label="20: Exit choose1_div1 \n " color=yellow style=filled]
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19 [label="19: Start choose1_div1\nFormals: s:class ExecStore<Choose1> &\nLocals: \n DECLARE_LOCALS(&return); [line 35]\n " color=yellow style=filled]
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19 -> 21 ;
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18 [label="18: Return Stmt \n n$0=*&s:class ExecStore<Choose1> & [line 32]\n n$1=_fun_ExecStore<Choose1>_call_div(n$0:class ExecStore<Choose1> &,0:int ) [line 32]\n *&return:int =n$1 [line 32]\n REMOVE_TEMPS(n$0,n$1); [line 32]\n NULLIFY(&s,false); [line 32]\n APPLY_ABSTRACTION; [line 32]\n " shape="box"]
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18 -> 17 ;
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17 [label="17: Exit choose1_div0 \n " color=yellow style=filled]
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16 [label="16: Start choose1_div0\nFormals: s:class ExecStore<Choose1> &\nLocals: \n DECLARE_LOCALS(&return); [line 31]\n " color=yellow style=filled]
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16 -> 18 ;
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15 [label="15: Return Stmt \n n$0=*&this:class ExecStore<Choose2> * [line 26]\n n$1=*&a:int [line 26]\n n$2=_fun_Choose2_div(n$0.f:class Choose2 &,n$1:int ,0:int ) [line 26]\n *&return:int =n$2 [line 26]\n REMOVE_TEMPS(n$0,n$1,n$2); [line 26]\n NULLIFY(&a,false); [line 26]\n NULLIFY(&this,false); [line 26]\n APPLY_ABSTRACTION; [line 26]\n " shape="box"]
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15 -> 14 ;
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14 [label="14: Exit ExecStore<Choose2>_call_div \n " color=yellow style=filled]
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13 [label="13: Start ExecStore<Choose2>_call_div\nFormals: this:class ExecStore<Choose2> * a:int \nLocals: \n DECLARE_LOCALS(&return); [line 24]\n " color=yellow style=filled]
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13 -> 15 ;
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12 [label="12: Return Stmt \n n$0=*&this:class ExecStore<Choose1> * [line 26]\n n$1=*&a:int [line 26]\n n$2=_fun_Choose1_div(n$0.f:class Choose1 &,n$1:int ,0:int ) [line 26]\n *&return:int =n$2 [line 26]\n REMOVE_TEMPS(n$0,n$1,n$2); [line 26]\n NULLIFY(&a,false); [line 26]\n NULLIFY(&this,false); [line 26]\n APPLY_ABSTRACTION; [line 26]\n " shape="box"]
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12 -> 11 ;
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11 [label="11: Exit ExecStore<Choose1>_call_div \n " color=yellow style=filled]
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10 [label="10: Start ExecStore<Choose1>_call_div\nFormals: this:class ExecStore<Choose1> * a:int \nLocals: \n DECLARE_LOCALS(&return); [line 24]\n " color=yellow style=filled]
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10 -> 12 ;
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9 [label="9: Return Stmt \n n$0=*&a:int [line 18]\n *&return:int =(1 / n$0) [line 18]\n REMOVE_TEMPS(n$0); [line 18]\n NULLIFY(&a,false); [line 18]\n APPLY_ABSTRACTION; [line 18]\n " shape="box"]
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9 -> 8 ;
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8 [label="8: Exit Choose2_extra \n " color=yellow style=filled]
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7 [label="7: Start Choose2_extra\nFormals: this:class Choose2 * a:int \nLocals: \n DECLARE_LOCALS(&return); [line 18]\n NULLIFY(&this,false); [line 18]\n " color=yellow style=filled]
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7 -> 9 ;
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6 [label="6: Return Stmt \n n$0=*&b:int [line 15]\n *&return:int =(1 / n$0) [line 15]\n REMOVE_TEMPS(n$0); [line 15]\n NULLIFY(&b,false); [line 15]\n APPLY_ABSTRACTION; [line 15]\n " shape="box"]
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6 -> 5 ;
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5 [label="5: Exit Choose2_div \n " color=yellow style=filled]
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4 [label="4: Start Choose2_div\nFormals: this:class Choose2 * a:int b:int \nLocals: \n DECLARE_LOCALS(&return); [line 15]\n NULLIFY(&a,false); [line 15]\n NULLIFY(&this,false); [line 15]\n " color=yellow style=filled]
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4 -> 6 ;
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3 [label="3: Return Stmt \n n$0=*&a:int [line 11]\n *&return:int =(1 / n$0) [line 11]\n REMOVE_TEMPS(n$0); [line 11]\n NULLIFY(&a,false); [line 11]\n APPLY_ABSTRACTION; [line 11]\n " shape="box"]
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3 -> 2 ;
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2 [label="2: Exit Choose1_div \n " color=yellow style=filled]
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1 [label="1: Start Choose1_div\nFormals: this:class Choose1 * a:int b:int \nLocals: \n DECLARE_LOCALS(&return); [line 11]\n NULLIFY(&b,false); [line 11]\n NULLIFY(&this,false); [line 11]\n " color=yellow style=filled]
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1 -> 3 ;
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}
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@ -0,0 +1,27 @@
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/*
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* Copyright (c) 2015 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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template<class T>
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struct Container {
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T field;
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};
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struct X {
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int field;
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};
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int div0_template_field(Container<int> &v) {
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v.field = 0;
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return 1 / v.field;
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}
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int div0_struct_field(X &v) {
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v.field = 0;
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return 1 / v.field;
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}
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digraph iCFG {
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8 [label="8: BinaryOperatorStmt: Assign \n n$2=*&v:struct X & [line 25]\n *n$2.field:int =0 [line 25]\n REMOVE_TEMPS(n$2); [line 25]\n " shape="box"]
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8 -> 7 ;
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7 [label="7: Return Stmt \n n$0=*&v:struct X & [line 26]\n n$1=*n$0.field:int [line 26]\n *&return:int =(1 / n$1) [line 26]\n REMOVE_TEMPS(n$0,n$1); [line 26]\n NULLIFY(&v,false); [line 26]\n APPLY_ABSTRACTION; [line 26]\n " shape="box"]
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7 -> 6 ;
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6 [label="6: Exit div0_struct_field \n " color=yellow style=filled]
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5 [label="5: Start div0_struct_field\nFormals: v:struct X &\nLocals: \n DECLARE_LOCALS(&return); [line 24]\n " color=yellow style=filled]
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5 -> 8 ;
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4 [label="4: BinaryOperatorStmt: Assign \n n$2=*&v:struct Container<int> & [line 20]\n *n$2.field:int =0 [line 20]\n REMOVE_TEMPS(n$2); [line 20]\n " shape="box"]
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4 -> 3 ;
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3 [label="3: Return Stmt \n n$0=*&v:struct Container<int> & [line 21]\n n$1=*n$0.field:int [line 21]\n *&return:int =(1 / n$1) [line 21]\n REMOVE_TEMPS(n$0,n$1); [line 21]\n NULLIFY(&v,false); [line 21]\n APPLY_ABSTRACTION; [line 21]\n " shape="box"]
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3 -> 2 ;
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2 [label="2: Exit div0_template_field \n " color=yellow style=filled]
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1 [label="1: Start div0_template_field\nFormals: v:struct Container<int> &\nLocals: \n DECLARE_LOCALS(&return); [line 19]\n " color=yellow style=filled]
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1 -> 4 ;
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}
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@ -0,0 +1,66 @@
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/*
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* Copyright (c) 2015 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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package endtoend.cpp;
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import static org.hamcrest.MatcherAssert.assertThat;
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import static utils.matchers.ResultContainsExactly.containsExactly;
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import com.google.common.collect.ImmutableList;
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import org.junit.BeforeClass;
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import org.junit.ClassRule;
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import org.junit.Test;
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import java.io.IOException;
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import utils.DebuggableTemporaryFolder;
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import utils.InferException;
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import utils.InferResults;
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import utils.InferRunner;
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public class ClassTemplateTest {
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public static final String FILE =
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"infer/tests/codetoanalyze/cpp/frontend/templates/class_template_instantiate.cpp";
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private static ImmutableList<String> inferCmd;
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public static final String DIVIDE_BY_ZERO = "DIVIDE_BY_ZERO";
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@ClassRule
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public static DebuggableTemporaryFolder folder =
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new DebuggableTemporaryFolder();
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@BeforeClass
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public static void runInfer() throws InterruptedException, IOException {
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inferCmd = InferRunner.createCPPInferCommand(folder, FILE);
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}
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@Test
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public void whenInferRunsOnDiv0FunctionsErrorIsFound()
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throws InterruptedException, IOException, InferException {
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String[] procedures = {
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"choose1_div0",
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"choose2_div0_extra",
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"ExecStore<Choose2>_call_div",
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};
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InferResults inferResults = InferRunner.runInferCPP(inferCmd);
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assertThat(
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"Results should contain divide by 0 error",
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inferResults,
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containsExactly(
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DIVIDE_BY_ZERO,
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FILE,
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procedures
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)
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);
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}
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}
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@ -0,0 +1,44 @@
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/*
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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package frontend.cpp;
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import org.junit.Rule;
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import org.junit.Test;
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import java.io.IOException;
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import utils.DebuggableTemporaryFolder;
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import utils.InferException;
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import utils.ClangFrontendUtils;
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public class TemplatesTest {
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String basePath = "infer/tests/codetoanalyze/cpp/frontend/templates/";
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@Rule
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public DebuggableTemporaryFolder folder = new DebuggableTemporaryFolder();
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void frontendTest(String fileRelative) throws InterruptedException, IOException, InferException {
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ClangFrontendUtils.createAndCompareCppDotFiles(folder, basePath + fileRelative);
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}
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@Test
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public void testSimpleDotFilesMatch()
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throws InterruptedException, IOException, InferException {
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frontendTest("simple.cpp");
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}
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@Test
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public void testClassTemplateInstantiateDotFilesMatch()
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throws InterruptedException, IOException, InferException {
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frontendTest("class_template_instantiate.cpp");
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}
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}
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