Changes in src/ResolvExpr/Unify.h [d286cf68:68f9c43]

File:

• src/ResolvExpr/Unify.h (modified) (4 diffs)

src/ResolvExpr/Unify.h

@@ -9 +9 @@
 // Author           : Richard C. Bilson
 // Created On       : Sun May 17 13:09:04 2015
-// Last Modified By : Aaron B. Moss
-// Last Modified On : Mon Jun 18 11:58:00 2018
-// Update Count     : 4
+// Last Modified By : Peter A. Buhr
+// Last Modified On : Fri Jul 21 23:09:34 2017
+// Update Count     : 3
 //
 
@@ -21 +21 @@
 #include "SynTree/Declaration.h"  // for TypeDecl, TypeDecl::Data
 #include "TypeEnvironment.h"      // for AssertionSet, OpenVarSet
-#include "WidenMode.h"            // for WidenMode
 
 class Type;
@@ -30 +29 @@
 
 namespace ResolvExpr {
+        struct WidenMode {
+                WidenMode( bool widenFirst, bool widenSecond ): widenFirst( widenFirst ), widenSecond( widenSecond ) {}
+                WidenMode &operator|=( const WidenMode &other ) { widenFirst |= other.widenFirst; widenSecond |= other.widenSecond; return *this; }
+                WidenMode &operator&=( const WidenMode &other ) { widenFirst &= other.widenFirst; widenSecond &= other.widenSecond; return *this; }
+                WidenMode operator|( const WidenMode &other ) { WidenMode newWM( *this ); newWM |= other; return newWM; }
+                WidenMode operator&( const WidenMode &other ) { WidenMode newWM( *this ); newWM &= other; return newWM; }
+                operator bool() { return widenFirst && widenSecond; }
+
+                bool widenFirst : 1, widenSecond : 1;
+        };
+
+        bool bindVar( TypeInstType *typeInst, Type *other, const TypeDecl::Data & data, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, const OpenVarSet &openVars, WidenMode widenMode, const SymTab::Indexer &indexer );
         bool unify( Type *type1, Type *type2, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, OpenVarSet &openVars, const SymTab::Indexer &indexer );
         bool unify( Type *type1, Type *type2, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, OpenVarSet &openVars, const SymTab::Indexer &indexer, Type *&commonType );
         bool unifyExact( Type *type1, Type *type2, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, OpenVarSet &openVars, const SymTab::Indexer &indexer );
-        bool unifyInexact( Type *type1, Type *type2, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, const OpenVarSet &openVars, WidenMode widenMode, const SymTab::Indexer &indexer, Type *&common );
 
         template< typename Iterator1, typename Iterator2 >
@@ -54 +64 @@
         bool unifyList( Iterator1 list1Begin, Iterator1 list1End, Iterator2 list2Begin, Iterator2 list2End, TypeEnvironment &env, AssertionSet &needAssertions, AssertionSet &haveAssertions, OpenVarSet &openVars, const SymTab::Indexer &indexer ) {
                 std::list< Type* > commonTypes;
-                if ( unifyList( list1Begin, list1End, list2Begin, list2End, env, needAssertions, haveAssertions, openVars, indexer, commonTypes ) ) {
-                        deleteAll( commonTypes );
-                        return true;
-                } else {
-                        return false;
-                } // if
+                return unifyList( list1Begin, list1End, list2Begin, list2End, env, needAssertions, haveAssertions, openVars, indexer, commonTypes );
         }