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https://github.com/Ed94/gencpp.git
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Ed_
5e79e8ba65
Fleshed out initial version of AST::is_equal( AST* ) Setup the test directory with initial files for each major validation test.
487 lines
12 KiB
C++
487 lines
12 KiB
C++
#pragma once
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#if GEN_TIME
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#include "gen.hpp"
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#include "Array.Upfront.hpp"
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using namespace gen;
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Code gen__hashtable_base()
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{
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CodeVar hashIndex = def_variable( t_sw, name(HashIndex) );
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CodeVar entry_prev = def_variable( t_sw, name(PrevIndex) );
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CodeVar entry_index = def_variable( t_sw, name(EntryIndex) );
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CodeStruct find_result = def_struct( name(HashTable_FindResult), def_struct_body( 3
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, hashIndex
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, entry_prev
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, entry_index
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));
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return find_result;
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}
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Code gen__hashtable( StrC type )
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{
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static CodeType t_allocator_info = def_type( name(AllocatorInfo) );
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CodeType t_find_result = def_type( name(HashTable_FindResult) );
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StringCached name;
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{
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char const* name_str = str_fmt_buf( "HashTable_%s", type.Ptr );
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s32 len = str_len( name_str );
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name = get_cached_string({ len, name_str });
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}
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CodeType t_ht_type = def_type( name );
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CodeType t_type = def_type( type );
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CodeType t_type_ptr = def_type( type, __, spec_ptr );
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CodeType t_type_ref = def_type( type, __, spec_ref );
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// Hash table depends on array container for its entry structure.
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CodeType t_ht_entry, t_array_ht_entry;
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CodeStruct ht_entry, array_ht_entry;
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{
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char const* name_str = str_fmt_buf( "HashTable_%s_Entry", type.Ptr );
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s32 len = str_len( name_str );
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StringCached ht_entry_name = get_cached_string({ len, name_str });
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t_ht_entry = def_type( ht_entry_name );
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ht_entry = def_struct( ht_entry_name, def_struct_body( args(
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def_variable( t_u64, name(Key))
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, def_variable( t_sw, name(Next))
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, def_variable( t_type, name(Value))
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)));
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array_ht_entry = gen__array( ht_entry_name );
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t_array_ht_entry = def_type( array_ht_entry->Name );
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}
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CodeStruct hashtable = {0};
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{
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CodeUsing using_entry = def_using( name(Entry), t_ht_entry );
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CodeUsing using_array_entry = def_using( name(Array_Entry), t_array_ht_entry );
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CodeUsing using_find_result = def_using( name(FindResult), t_find_result );
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CodeType t_array_sw = def_type( name(Array_sw) );
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CodeType t_array_entry = def_type( name(Array_Entry) );
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CodeVar hashes = def_variable( t_array_sw, name(Hashes) );
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CodeVar entries = def_variable( t_array_entry, name(Entries));
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CodeFn init;
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{
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char const* tmpl = stringize(
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<type> result = { 0 };
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result.Hashes = Array_sw ::init( allocator );
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result.Entries = Array_Entry::init( allocator );
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return result;
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);
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Code body = def_execution( token_fmt( "type", (StrC)name, tmpl ) );
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init = def_function( name(init), def_param( t_allocator_info, name(allocator)), t_ht_type, body, spec_static_member );
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}
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CodeFn init_reserve;
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{
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char const* tmpl = stringize(
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<type> result = { { nullptr }, { nullptr } };
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result.Hashes = Array_sw::init_reserve( allocator, num );
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result.Hashes.get_header()->Num = num;
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result.Entries = Array_Entry::init_reserve( allocator, num );
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return result;
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);
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Code body = def_execution( token_fmt( "type", (StrC)name, tmpl ) );
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CodeParam params = def_params( args( def_param( t_allocator_info, name(allocator)), def_param( t_sw, name(num))));
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init_reserve = def_function( name(init_reserve), params, t_ht_type, body, spec_static_member );
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}
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CodeFn clear = def_function( name(clear), __, t_void
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, def_execution( code(
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for ( s32 idx = 0; idx < Hashes.num(); idx++ )
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Hashes[ idx ] = -1;
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Entries.clear();
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))
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);
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CodeFn destroy = def_function( name(destroy), __, t_void
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, def_execution( code(
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if ( Hashes && Hashes.get_header()->Capacity )
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Hashes.free();
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if ( Entries && Hashes.get_header()->Capacity )
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Entries.free();
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))
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);
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CodeFn get = def_function( name(get), def_param( t_u64, name(key)), t_type_ptr
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, def_execution( code(
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sw idx = find( key ).EntryIndex;
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if ( idx >= 0 )
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return & Entries[ idx ].Value;
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return nullptr;
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))
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);
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CodeUsing using_map_proc;
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{
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char const* tmpl = stringize(
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void (*) ( u64 key, <type> value )
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);
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CodeType value = def_type( token_fmt( "type", (StrC)t_type.to_string(), tmpl ) );
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using_map_proc = def_using ( name(MapProc), value);
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}
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CodeFn map;
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{
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CodeType t_map_proc = def_type( name(MapProc) );
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Code body = def_execution( code(
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GEN_ASSERT_NOT_NULL( map_proc );
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for ( sw idx = 0; idx < Entries.num(); idx++ )
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{
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map_proc( Entries[ idx ].Key, Entries[ idx ].Value );
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}
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));
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map = def_function( name(map), def_param( t_map_proc, name(map_proc) ), t_void, body );
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}
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CodeUsing using_map_mut_proc;
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{
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char const* tmpl = stringize(
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void (*) ( u64 key, <type> value )
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);
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CodeType value = def_type( token_fmt( "type", (StrC)t_type_ptr.to_string(), tmpl ) );
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using_map_mut_proc = def_using ( name(MapMutProc), value);
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}
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CodeFn map_mut;
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{
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CodeType t_map_mut_proc = def_type( name(MapMutProc));
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Code body = def_execution( code(
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GEN_ASSERT_NOT_NULL( map_proc );
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for ( sw idx = 0; idx < Entries.num(); idx++ )
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{
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map_proc( Entries[ idx ].Key, & Entries[ idx ].Value );
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}
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));
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map_mut = def_function( name(map_mut), def_param( t_map_mut_proc, name(map_proc)), t_void, body );
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}
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CodeFn grow = def_function( name(grow), __, t_void
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, def_execution( code(
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sw new_num = array_grow_formula( Entries.num() );
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rehash( new_num );
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))
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);
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CodeFn rehash;
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{
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char const* tmpl = stringize(
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sw idx;
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sw last_added_index;
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<type> new_ht = init_reserve( Hashes.get_header()->Allocator, new_num );
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Array_sw::Header* hash_header = new_ht.Hashes.get_header();
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for ( idx = 0; idx < new_ht.Hashes.num(); ++idx )
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new_ht.Hashes[ idx ] = -1;
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for ( idx = 0; idx < Entries.num(); ++idx )
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{
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Entry& entry = Entries[ idx ];
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FindResult find_result;
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if ( new_ht.Hashes.num() == 0 )
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new_ht.grow();
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entry = Entries[ idx ];
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find_result = new_ht.find( entry.Key );
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last_added_index = new_ht.add_entry( entry.Key );
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if ( find_result.PrevIndex < 0 )
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new_ht.Hashes[ find_result.HashIndex ] = last_added_index;
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else
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new_ht.Entries[ find_result.PrevIndex ].Next = last_added_index;
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new_ht.Entries[ last_added_index ].Next = find_result.EntryIndex;
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new_ht.Entries[ last_added_index ].Value = entry.Value;
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}
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destroy();
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*this = new_ht;
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);
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Code body = def_execution( token_fmt( "type", (StrC)name, tmpl ) );
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rehash = def_function( name(rehash), def_param( t_sw, name(new_num)), t_void, body );
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}
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CodeFn rehash_fast;
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{
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char const* tmpl = stringize(
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sw idx;
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for ( idx = 0; idx < Entries.num(); idx++ )
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Entries[ idx ].Next = -1;
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for ( idx = 0; idx < Hashes.num(); idx++ )
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Hashes[ idx ] = -1;
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for ( idx = 0; idx < Entries.num(); idx++ )
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{
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Entry* entry;
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FindResult find_result;
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}
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);
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Code body = def_execution( token_fmt( "type", name, tmpl ) );
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rehash_fast = def_function( name(rehash_fast), __, t_void, body );
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}
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CodeFn remove = def_function( name(remove), def_param( t_u64, name(key)), t_void
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, def_execution( code(
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FindResult find_result = find( key);
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if ( find_result.EntryIndex >= 0 )
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{
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Entries.remove_at( find_result.EntryIndex );
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rehash_fast();
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}
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))
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);
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CodeFn remove_entry = def_function( name(remove_entry), def_param( t_sw, name(idx)), t_void
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, def_execution( code(
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Entries.remove_at( idx );
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))
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);
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CodeFn set;
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{
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CodeParam params = def_params( args(
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def_param( t_u64, name(key))
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, def_param( t_type, name(value))
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));
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Code body = def_execution( code(
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sw idx;
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FindResult find_result;
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if ( Hashes.num() == 0 )
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grow();
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find_result = find( key );
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if ( find_result.EntryIndex >= 0 )
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{
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idx = find_result.EntryIndex;
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}
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else
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{
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idx = add_entry( key );
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if ( find_result.PrevIndex >= 0 )
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{
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Entries[ find_result.PrevIndex ].Next = idx;
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}
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else
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{
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Hashes[ find_result.HashIndex ] = idx;
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}
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}
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Entries[ idx ].Value = value;
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if ( full() )
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grow();
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));
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set = def_function( name(set), params, t_void, body );
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}
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CodeFn slot = def_function( name(slot), def_param( t_u64, name(key)), t_sw
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, def_execution( code(
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for ( sw idx = 0; idx < Hashes.num(); ++idx )
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if ( Hashes[ idx ] == key )
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return idx;
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return -1;
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))
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);
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CodeFn add_entry = def_function( name(add_entry), def_param( t_u64, name(key)), t_sw
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, def_execution( code(
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sw idx;
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Entry entry = { key, -1 };
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idx = Entries.num();
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Entries.append( entry );
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return idx;
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))
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);
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CodeFn find = def_function( name(find), def_param( t_u64, name(key)), t_find_result
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, def_execution( code(
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FindResult result = { -1, -1, -1 };
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if ( Hashes.num() > 0 )
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{
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result.HashIndex = key % Hashes.num();
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result.EntryIndex = Hashes[ result.HashIndex ];
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while ( result.EntryIndex >= 0 )
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{
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if ( Entries[ result.EntryIndex ].Key == key )
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break;
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result.PrevIndex = result.EntryIndex;
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result.EntryIndex = Entries[ result.EntryIndex ].Next;
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}
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}
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return result;
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))
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);
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CodeFn full = def_function( name(full), __, t_b32
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, def_execution( code(
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return 0.75f * Hashes.num() < Entries.num();
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))
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);
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hashtable = def_struct( name, def_struct_body( args(
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using_entry
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, using_array_entry
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, using_find_result
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, using_map_proc
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, using_map_mut_proc
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, init
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, init_reserve
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, clear
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, destroy
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, get
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, grow
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, map
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, map_mut
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, rehash
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, rehash_fast
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, remove
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, remove_entry
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, set
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, slot
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, hashes
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, entries
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, access_protected
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, add_entry
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, find
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, full
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)));
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}
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return def_global_body( args( ht_entry, array_ht_entry, hashtable ));
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}
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struct GenHashTableRequest
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{
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StrC Dependency;
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StrC Type;
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};
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Array<GenHashTableRequest> GenHashTableRequests;
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void gen__hashtable_request( StrC type, StrC dep = {} )
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{
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do_once_start
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GenHashTableRequests = Array<GenHashTableRequest>::init( GlobalAllocator );
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gen_array( sw );
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do_once_end
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// Make sure we don't already have a request for the type.
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for ( sw idx = 0; idx < GenHashTableRequests.num(); ++idx )
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{
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StrC const reqest_type = GenHashTableRequests[ idx ].Type;
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if ( reqest_type.Len != type.Len )
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continue;
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if ( str_compare( reqest_type.Ptr, type.Ptr, reqest_type.Len ) == 0 )
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return;
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}
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GenHashTableRequest request = { dep, type };
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GenHashTableRequests.append( request );
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}
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#define gen_hashtable( type ) gen__hashtable_request( code(type))
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u32 gen_hashtable_file()
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{
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Builder
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gen_hashtable_file;
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gen_hashtable_file.open( "hashtable.Upfront.gen.hpp" );
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gen_hashtable_file.print( def_include( txt("gen.hpp")) );
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gen_hashtable_file.print( def_include( txt("Array.Upfront.hpp")) );
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gen_hashtable_file.print( def_include( txt("array.Upfront.gen.hpp")) );
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gen_hashtable_file.print( def_using_namespace( name(gen)));
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gen_hashtable_file.print( gen__hashtable_base());
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GenHashTableRequest* current = GenHashTableRequests;
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s32 left = GenHashTableRequests.num();
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while (left--)
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{
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GenHashTableRequest const& request = * current;
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Code generated_buffer = gen__hashtable( current->Type );
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if ( request.Dependency )
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{
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char const* cmt_str = str_fmt_buf( "// Dependency for %s type", request.Type );
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s32 cmt_len = str_len( cmt_str );
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Code cmt = def_comment( { cmt_len, cmt_str } );
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Code include = def_include( request.Dependency );
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gen_hashtable_file.print( cmt );
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gen_hashtable_file.print( include );
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}
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gen_hashtable_file.print( generated_buffer );
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current++;
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}
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gen_hashtable_file.write();
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return 0;
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}
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#endif // GEN_TIME
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