Changeset 53bb8f1 for src/SymTab/Mangler.cc

Timestamp:

Mar 12, 2019, 3:00:54 PM (7 years ago)

Author:

Aaron Moss <a3moss@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

30e32b2, a2545593

Parents:

9d9a451 (diff), 91d6584 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge second draft of Aaron's thesis

File:

• src/SymTab/Mangler.cc (modified) (6 diffs)

src/SymTab/Mangler.cc

@@ -15 +15 @@
 #include "Mangler.h"
 
-#include <algorithm>                // for copy, transform
-#include <cassert>                  // for assert, assertf
-#include <functional>               // for const_mem_fun_t, mem_fun
-#include <iterator>                 // for ostream_iterator, back_insert_ite...
-#include <list>                     // for _List_iterator, list, _List_const...
-#include <string>                   // for string, char_traits, operator<<
-
-#include "CodeGen/OperatorTable.h"  // for OperatorInfo, operatorLookup
+#include <algorithm>                     // for copy, transform
+#include <cassert>                       // for assert, assertf
+#include <functional>                    // for const_mem_fun_t, mem_fun
+#include <iterator>                      // for ostream_iterator, back_insert_ite...
+#include <list>                          // for _List_iterator, list, _List_const...
+#include <string>                        // for string, char_traits, operator<<
+
+#include "CodeGen/OperatorTable.h"       // for OperatorInfo, operatorLookup
 #include "Common/PassVisitor.h"
-#include "Common/SemanticError.h"   // for SemanticError
-#include "Common/utility.h"         // for toString
-#include "Parser/LinkageSpec.h"     // for Spec, isOverridable, AutoGen, Int...
-#include "SynTree/Declaration.h"    // for TypeDecl, DeclarationWithType
-#include "SynTree/Expression.h"     // for TypeExpr, Expression, operator<<
-#include "SynTree/Type.h"           // for Type, ReferenceToType, Type::Fora...
+#include "Common/SemanticError.h"        // for SemanticError
+#include "Common/utility.h"              // for toString
+#include "Parser/LinkageSpec.h"          // for Spec, isOverridable, AutoGen, Int...
+#include "ResolvExpr/TypeEnvironment.h"  // for TypeEnvironment
+#include "SynTree/Declaration.h"         // for TypeDecl, DeclarationWithType
+#include "SynTree/Expression.h"          // for TypeExpr, Expression, operator<<
+#include "SynTree/Type.h"                // for Type, ReferenceToType, Type::Fora...
 
 namespace SymTab {
@@ -37 +38 @@
                         struct Mangler : public WithShortCircuiting, public WithVisitorRef<Mangler>, public WithGuards {
                                 Mangler( bool mangleOverridable, bool typeMode, bool mangleGenericParams );
+                                Mangler( const ResolvExpr::TypeEnvironment& env );
                                 Mangler( const Mangler & ) = delete;
 
@@ -65 +67 @@
                           private:
                                 std::ostringstream mangleName;  ///< Mangled name being constructed
-                                typedef std::map< std::string, std::pair< int, int > > VarMapType;
+                                typedef std::map< std::string, std::pair< std::string, int > > VarMapType;
                                 VarMapType varNums;             ///< Map of type variables to indices
                                 int nextVarNum;                 ///< Next type variable index
+                                const ResolvExpr::TypeEnvironment* env;  ///< optional environment for substitutions
                                 bool isTopLevel;                ///< Is the Mangler at the top level
                                 bool mangleOverridable;         ///< Specially mangle overridable built-in methods
@@ -75 +78 @@
                                 bool inQualifiedType = false;   ///< Add start/end delimiters around qualified type
 
+                          public:
+                                Mangler( bool mangleOverridable, bool typeMode, bool mangleGenericParams, 
+                                        int nextVarNum, const ResolvExpr::TypeEnvironment* env, 
+                                        const VarMapType& varNums );
+
+                          private:
                                 void mangleDecl( DeclarationWithType *declaration );
                                 void mangleRef( ReferenceToType *refType, std::string prefix );
@@ -100 +109 @@
                 }
 
+                std::string mangleAssnKey( DeclarationWithType* decl, 
+                                const ResolvExpr::TypeEnvironment& env ) {
+                        PassVisitor<Mangler> mangler( env );
+                        maybeAccept( decl, mangler );
+                        return mangler.pass.get_mangleName();
+                }
+
                 namespace {
                         Mangler::Mangler( bool mangleOverridable, bool typeMode, bool mangleGenericParams )
-                                : nextVarNum( 0 ), isTopLevel( true ), mangleOverridable( mangleOverridable ), typeMode( typeMode ), mangleGenericParams( mangleGenericParams ) {}
+                                : nextVarNum( 0 ), env(nullptr), isTopLevel( true ), 
+                                mangleOverridable( mangleOverridable ), typeMode( typeMode ), 
+                                mangleGenericParams( mangleGenericParams ) {}
+                        
+                        Mangler::Mangler( const ResolvExpr::TypeEnvironment& env )
+                                : nextVarNum( 0 ), env( &env ), isTopLevel( true ), mangleOverridable( false ),
+                                typeMode( false ), mangleGenericParams( true ) {}
+                        
+                        Mangler::Mangler( bool mangleOverridable, bool typeMode, bool mangleGenericParams, 
+                                int nextVarNum, const ResolvExpr::TypeEnvironment* env, 
+                                const VarMapType& varNums )
+                                : varNums( varNums ), nextVarNum( nextVarNum ), env( env ), isTopLevel( false ), 
+                                mangleOverridable( mangleOverridable ), typeMode( typeMode ), 
+                                mangleGenericParams( mangleGenericParams ) {}
 
                         void Mangler::mangleDecl( DeclarationWithType * declaration ) {
@@ -329 +358 @@
                                                         assert( false );
                                                 } // switch
-                                                varNums[ (*i)->name ] = std::pair< int, int >( nextVarNum++, (int)(*i)->get_kind() );
+                                                std::string varName;
+                                                // replace type with substitution name if environment is available and bound
+                                                if ( env ) {
+                                                        const ResolvExpr::EqvClass* varClass = env->lookup( (*i)->name );
+                                                        if ( varClass && varClass->type ) {
+                                                                PassVisitor<Mangler> sub_mangler(
+                                                                        mangleOverridable, typeMode, mangleGenericParams, nextVarNum, 
+                                                                        env, varNums );
+                                                                varClass->type->accept( sub_mangler );
+                                                                varName = std::string{"%"} + sub_mangler.pass.get_mangleName();
+                                                        }
+                                                }
+                                                // otherwise just give type numeric name
+                                                if ( varName.empty() ) {
+                                                        varName = std::to_string( nextVarNum++ );
+                                                }
+                                                varNums[ (*i)->name ] = std::make_pair( varName, (int)(*i)->get_kind() );
                                                 for ( std::list< DeclarationWithType* >::iterator assert = (*i)->assertions.begin(); assert != (*i)->assertions.end(); ++assert ) {
-                                                        PassVisitor<Mangler> sub_mangler( mangleOverridable, typeMode, mangleGenericParams );
-                                                        sub_mangler.pass.nextVarNum = nextVarNum;
-                                                        sub_mangler.pass.isTopLevel = false;
-                                                        sub_mangler.pass.varNums = varNums;
+                                                        PassVisitor<Mangler> sub_mangler( 
+                                                                mangleOverridable, typeMode, mangleGenericParams, nextVarNum, env, 
+                                                                varNums );
                                                         (*assert)->accept( sub_mangler );
-                                                        assertionNames.push_back( sub_mangler.pass.mangleName.str() );
+                                                        assertionNames.push_back( sub_mangler.pass.get_mangleName() );
                                                         acount++;
                                                 } // for