diff options
Diffstat (limited to 'frontend')
| -rw-r--r-- | frontend/checkFunctionBodies.icl | 259 |
1 files changed, 225 insertions, 34 deletions
diff --git a/frontend/checkFunctionBodies.icl b/frontend/checkFunctionBodies.icl index 3e060f2..7a5bf7a 100644 --- a/frontend/checkFunctionBodies.icl +++ b/frontend/checkFunctionBodies.icl @@ -55,6 +55,72 @@ cEndWithSelection :== False :: RecordKind = RK_Constructor | RK_Update | RK_UpdateToConstructor ![AuxiliaryPattern] +get_unboxed_list_indices_and_decons_u_ident :: *CheckState -> (!Index,!Index,!Index,!Index,!Ident,!*CheckState); +get_unboxed_list_indices_and_decons_u_ident cs=:{cs_predef_symbols} + # (stdStrictLists_index,cs_predef_symbols)=cs_predef_symbols![PD_StdStrictLists].pds_def + # (cons_u_index,cs_predef_symbols)=cs_predef_symbols![PD_cons_u].pds_def + # (decons_u_symbol,cs_predef_symbols)=cs_predef_symbols![PD_decons_u] + # decons_u_index=decons_u_symbol.pds_def + # (nil_u_index,cs_predef_symbols)=cs_predef_symbols![PD_nil_u].pds_def + # cs={cs & cs_predef_symbols=cs_predef_symbols} + = (stdStrictLists_index,cons_u_index,decons_u_index,nil_u_index,decons_u_symbol.pds_ident,cs) + +make_unboxed_list type_symbol expr_heap cs + # (stdStrictLists_index,cons_u_index,decons_u_index,nil_u_index,decons_u_ident,cs) = get_unboxed_list_indices_and_decons_u_ident cs + # unboxed_list=UnboxedList type_symbol stdStrictLists_index decons_u_index nil_u_index + # (new_info_ptr,expr_heap) = newPtr EI_Empty expr_heap + # decons_expr = App {app_symb={symb_name=decons_u_ident,symb_arity=0,symb_kind=SK_OverloadedFunction {glob_object=decons_u_index,glob_module=stdStrictLists_index}},app_args=[],app_info_ptr=new_info_ptr} + = (unboxed_list,decons_expr,expr_heap,cs) + +get_unboxed_tail_strict_list_indices_and_decons_u_ident :: *CheckState -> (!Index,!Index,!Index,!Index,!Ident,!*CheckState); +get_unboxed_tail_strict_list_indices_and_decons_u_ident cs=:{cs_predef_symbols} + # (stdStrictLists_index,cs_predef_symbols)=cs_predef_symbols![PD_StdStrictLists].pds_def + # (cons_uts_index,cs_predef_symbols)=cs_predef_symbols![PD_cons_uts].pds_def + # (decons_uts_symbol,cs_predef_symbols)=cs_predef_symbols![PD_decons_uts] + # decons_uts_index=decons_uts_symbol.pds_def + # (nil_uts_index,cs_predef_symbols)=cs_predef_symbols![PD_nil_uts].pds_def + # cs={cs & cs_predef_symbols=cs_predef_symbols} + = (stdStrictLists_index,cons_uts_index,decons_uts_index,nil_uts_index,decons_uts_symbol.pds_ident,cs) + +make_unboxed_tail_strict_list type_symbol expr_heap cs + # (stdStrictLists_index,cons_uts_index,decons_uts_index,nil_uts_index,decons_uts_ident,cs) = get_unboxed_tail_strict_list_indices_and_decons_u_ident cs + # unboxed_list=UnboxedTailStrictList type_symbol stdStrictLists_index decons_uts_index nil_uts_index + # (new_info_ptr,expr_heap) = newPtr EI_Empty expr_heap + # decons_expr = App {app_symb={symb_name=decons_uts_ident,symb_arity=0,symb_kind=SK_OverloadedFunction {glob_object=decons_uts_index,glob_module=stdStrictLists_index}},app_args=[],app_info_ptr=new_info_ptr} + = (unboxed_list,decons_expr,expr_heap,cs) + +get_overloaded_list_indices_and_decons_ident :: *CheckState -> (!Index,!Index,!Index,!Index,!Ident,!*CheckState); +get_overloaded_list_indices_and_decons_ident cs=:{cs_predef_symbols} + # (stdStrictLists_index,cs_predef_symbols)=cs_predef_symbols![PD_StdStrictLists].pds_def + # (cons_index,cs_predef_symbols)=cs_predef_symbols![PD_cons].pds_def + # (decons_symbol,cs_predef_symbols)=cs_predef_symbols![PD_decons] + # decons_index=decons_symbol.pds_def + # (nil_index,cs_predef_symbols)=cs_predef_symbols![PD_nil].pds_def + # cs={cs & cs_predef_symbols=cs_predef_symbols} + = (stdStrictLists_index,cons_index,decons_index,nil_index,decons_symbol.pds_ident,cs) + +make_overloaded_list type_symbol expr_heap cs + # (stdStrictLists_index,cons_index,decons_index,nil_index,decons_ident,cs) = get_overloaded_list_indices_and_decons_ident cs + # overloaded_list=OverloadedList type_symbol stdStrictLists_index decons_index nil_index + # (new_info_ptr,expr_heap) = newPtr EI_Empty expr_heap + # decons_expr = App {app_symb={symb_name=decons_ident,symb_arity=0,symb_kind=SK_OverloadedFunction {glob_object=decons_index,glob_module=stdStrictLists_index}},app_args=[],app_info_ptr=new_info_ptr} + = (overloaded_list,decons_expr,expr_heap,cs) + +make_case_guards cons_symbol type_symbol alg_patterns expr_heap cs + | cons_symbol.glob_module==cPredefinedModuleIndex + # pd_cons_index=cons_symbol.glob_object.ds_index+FirstConstructorPredefinedSymbolIndex + | pd_cons_index==PD_UnboxedConsSymbol || pd_cons_index==PD_UnboxedNilSymbol + # (unboxed_list,decons_expr,expr_heap,cs) = make_unboxed_list type_symbol expr_heap cs + = (OverloadedListPatterns unboxed_list decons_expr alg_patterns,expr_heap,cs) + | pd_cons_index==PD_UnboxedTailStrictConsSymbol || pd_cons_index==PD_UnboxedTailStrictNilSymbol + # (unboxed_tail_strict_list,decons_expr,expr_heap,cs) = make_unboxed_tail_strict_list type_symbol expr_heap cs + = (OverloadedListPatterns unboxed_tail_strict_list decons_expr alg_patterns,expr_heap,cs) + | pd_cons_index==PD_OverloadedConsSymbol || pd_cons_index==PD_OverloadedNilSymbol + # (overloaded_list,decons_expr,expr_heap,cs) = make_overloaded_list type_symbol expr_heap cs + = (OverloadedListPatterns overloaded_list decons_expr alg_patterns,expr_heap,cs) + = (AlgebraicPatterns type_symbol alg_patterns,expr_heap,cs) + = (AlgebraicPatterns type_symbol alg_patterns,expr_heap,cs) + checkFunctionBodies :: !FunctionBody !Ident !.ExpressionInput !*ExpressionState !*ExpressionInfo !*CheckState -> (FunctionBody,[FreeVar],!.ExpressionState,.ExpressionInfo,!.CheckState); checkFunctionBodies (ParsedBody [{pb_args,pb_rhs={rhs_alts,rhs_locals}, pb_position} : bodies]) function_ident_for_errors e_input=:{ei_expr_level,ei_mod_index} e_state=:{es_var_heap, es_fun_defs} e_info cs @@ -191,9 +257,9 @@ where = convertSubPatterns args result_expr pattern_position var_store expr_heap opt_dynamics cs type_symbol = {glob_module = cons_symbol.glob_module, glob_object = type_index} (act_var, result_expr, expr_heap) = transform_pattern_variable fun_arg opt_var result_expr expr_heap - alg_pattern = { ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = pattern_position } - case_guards = AlgebraicPatterns type_symbol [alg_pattern] (case_expr_ptr, expr_heap) = newPtr EI_Empty expr_heap + # alg_patterns = [{ ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = pattern_position }] + # (case_guards,expr_heap,cs) = make_case_guards cons_symbol type_symbol alg_patterns expr_heap cs = (Case { case_expr = act_var, case_guards = case_guards, case_default = No, case_ident = No, // RWS ... case_explicit = False, @@ -567,22 +633,155 @@ where transform_pattern (AP_Algebraic cons_symbol type_index args opt_var) patterns pattern_scheme pattern_variables defaul result_expr _ var_store expr_heap opt_dynamics cs # (var_args, result_expr, _, var_store, expr_heap, opt_dynamics, cs) = convertSubPatterns args result_expr NoPos var_store expr_heap opt_dynamics cs type_symbol = { glob_module = cons_symbol.glob_module, glob_object = type_index} - pattern = { ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = NoPos} pattern_variables = cons_optional opt_var pattern_variables - = case pattern_scheme of - AlgebraicPatterns alg_type _ - | type_symbol == alg_type - # alg_patterns = case patterns of - AlgebraicPatterns _ alg_patterns -> alg_patterns - NoPattern -> [] - -> (AlgebraicPatterns type_symbol [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) - -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, - { cs & cs_error = checkError cons_symbol.glob_object.ds_ident "incompatible types of patterns" cs.cs_error }) - NoPattern - -> (AlgebraicPatterns type_symbol [pattern], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) - _ - -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, - { cs & cs_error = checkError cons_symbol.glob_object.ds_ident "illegal combination of patterns" cs.cs_error }) + # pattern = { ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = NoPos} + | cons_symbol.glob_module==cPredefinedModuleIndex + # pd_cons_index=cons_symbol.glob_object.ds_index+FirstConstructorPredefinedSymbolIndex + | pd_cons_index==PD_UnboxedConsSymbol || pd_cons_index==PD_UnboxedNilSymbol + # (unboxed_list,decons_expr,expr_heap,cs) = make_unboxed_list type_symbol expr_heap cs + = case pattern_scheme of + OverloadedListPatterns (UnboxedList _ _ _ _) _ _ + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + -> (OverloadedListPatterns unboxed_list decons_expr [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + OverloadedListPatterns (OverloadedList _ _ _ _) _ _ + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_UnboxedConsSymbol PD_UnboxedNilSymbol cs + -> (OverloadedListPatterns unboxed_list decons_expr [pattern : alg_patterns], OverloadedListPatterns unboxed_list decons_expr [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + NoPattern + -> (OverloadedListPatterns unboxed_list decons_expr [pattern], OverloadedListPatterns unboxed_list decons_expr [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + _ + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + + | pd_cons_index==PD_UnboxedTailStrictConsSymbol || pd_cons_index==PD_UnboxedTailStrictNilSymbol + # (unboxed_tail_strict_list,decons_expr,expr_heap,cs) = make_unboxed_tail_strict_list type_symbol expr_heap cs + = case pattern_scheme of + OverloadedListPatterns (UnboxedTailStrictList _ _ _ _) _ _ + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + -> (OverloadedListPatterns unboxed_tail_strict_list decons_expr [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + OverloadedListPatterns (OverloadedList _ _ _ _) _ _ + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_UnboxedTailStrictConsSymbol PD_UnboxedTailStrictNilSymbol cs + -> (OverloadedListPatterns unboxed_tail_strict_list decons_expr [pattern : alg_patterns], OverloadedListPatterns unboxed_tail_strict_list decons_expr [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + NoPattern + -> (OverloadedListPatterns unboxed_tail_strict_list decons_expr [pattern], OverloadedListPatterns unboxed_tail_strict_list decons_expr [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + _ + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + + | pd_cons_index==PD_OverloadedConsSymbol || pd_cons_index==PD_OverloadedNilSymbol + = case pattern_scheme of + OverloadedListPatterns (OverloadedList _ _ _ _) _ _ + # (overloaded_list,decons_expr,expr_heap,cs) = make_overloaded_list type_symbol expr_heap cs + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + -> (OverloadedListPatterns overloaded_list decons_expr [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + OverloadedListPatterns (UnboxedList _ _ _ _) _ _ + # (unboxed_list,decons_expr,expr_heap,cs) = make_unboxed_list type_symbol expr_heap cs + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_UnboxedConsSymbol PD_UnboxedNilSymbol cs + -> (OverloadedListPatterns unboxed_list decons_expr [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + OverloadedListPatterns (UnboxedTailStrictList _ _ _ _) _ _ + # (unboxed_tail_strict_list,decons_expr,expr_heap,cs) = make_unboxed_tail_strict_list type_symbol expr_heap cs + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_UnboxedTailStrictConsSymbol PD_UnboxedTailStrictNilSymbol cs + -> (OverloadedListPatterns unboxed_tail_strict_list decons_expr [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + AlgebraicPatterns alg_type _ + + | alg_type.glob_module==cPredefinedModuleIndex + # index=alg_type.glob_object+FirstTypePredefinedSymbolIndex + | index==PD_ListType + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_ConsSymbol PD_NilSymbol cs + -> (AlgebraicPatterns alg_type [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_StrictListType + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_StrictConsSymbol PD_StrictNilSymbol cs + -> (AlgebraicPatterns alg_type [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_TailStrictListType + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_TailStrictConsSymbol PD_TailStrictNilSymbol cs + -> (AlgebraicPatterns alg_type [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_StrictTailStrictListType + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern PD_StrictTailStrictConsSymbol PD_StrictTailStrictNilSymbol cs + -> (AlgebraicPatterns alg_type [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + NoPattern + # (overloaded_list,decons_expr,expr_heap,cs) = make_overloaded_list type_symbol expr_heap cs + -> (OverloadedListPatterns overloaded_list decons_expr [pattern], OverloadedListPatterns overloaded_list decons_expr [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + _ + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + = case pattern_scheme of + AlgebraicPatterns alg_type _ + | type_symbol == alg_type + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + -> (AlgebraicPatterns type_symbol [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, + { cs & cs_error = checkError cons_symbol.glob_object.ds_ident "incompatible types of patterns" cs.cs_error }) + OverloadedListPatterns (OverloadedList _ _ _ _) _ _ + | type_symbol.glob_module==cPredefinedModuleIndex + # index=type_symbol.glob_object+FirstTypePredefinedSymbolIndex + | index==PD_ListType + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_ConsSymbol PD_NilSymbol cs + -> (AlgebraicPatterns type_symbol [pattern:alg_patterns], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_StrictListType + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_StrictConsSymbol PD_StrictNilSymbol cs + -> (AlgebraicPatterns type_symbol [pattern:alg_patterns], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_TailStrictListType + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_TailStrictConsSymbol PD_TailStrictNilSymbol cs + -> (AlgebraicPatterns type_symbol [pattern:alg_patterns], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + | index==PD_StrictTailStrictListType + # alg_patterns = alg_patterns_of_OverloadedListPatterns_or_NoPattern patterns + # (alg_patterns,cs) = replace_overloaded_symbols_in_patterns alg_patterns PD_StrictTailStrictConsSymbol PD_StrictTailStrictNilSymbol cs + -> (AlgebraicPatterns type_symbol [pattern:alg_patterns], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + NoPattern + -> (AlgebraicPatterns type_symbol [pattern], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + _ + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + = case pattern_scheme of + AlgebraicPatterns alg_type _ + | type_symbol == alg_type + # alg_patterns = alg_patterns_of_AlgebraicPatterns_or_NoPattern patterns + -> (AlgebraicPatterns type_symbol [pattern : alg_patterns], pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics, + { cs & cs_error = checkError cons_symbol.glob_object.ds_ident "incompatible types of patterns" cs.cs_error }) + NoPattern + -> (AlgebraicPatterns type_symbol [pattern], AlgebraicPatterns type_symbol [], pattern_variables, defaul, var_store, expr_heap, opt_dynamics, cs) + _ + -> (patterns, pattern_scheme, pattern_variables, defaul, var_store, expr_heap, opt_dynamics,illegal_combination_of_patterns_error cons_symbol cs) + where + alg_patterns_of_AlgebraicPatterns_or_NoPattern (AlgebraicPatterns _ alg_patterns) = alg_patterns + alg_patterns_of_AlgebraicPatterns_or_NoPattern NoPattern = [] + + alg_patterns_of_OverloadedListPatterns_or_NoPattern (OverloadedListPatterns _ _ alg_patterns) = alg_patterns + alg_patterns_of_OverloadedListPatterns_or_NoPattern NoPattern = [] + + illegal_combination_of_patterns_error cons_symbol cs + = { cs & cs_error = checkError cons_symbol.glob_object.ds_ident "illegal combination of patterns" cs.cs_error } + + replace_overloaded_symbols_in_patterns [] pd_cons_symbol pd_nil_symbol cs + = ([],cs) + replace_overloaded_symbols_in_patterns [pattern=:{ap_symbol={glob_module,glob_object}}:patterns] pd_cons_symbol pd_nil_symbol cs + # (pattern,cs) = replace_overloaded_symbol_in_pattern pattern pd_cons_symbol pd_nil_symbol cs + # (patterns,cs) = replace_overloaded_symbols_in_patterns patterns pd_cons_symbol pd_nil_symbol cs + = ([pattern:patterns],cs) + + replace_overloaded_symbol_in_pattern pattern=:{ap_symbol={glob_module,glob_object}} pd_cons_symbol pd_nil_symbol cs + | glob_module==cPredefinedModuleIndex + # index=glob_object.ds_index+FirstConstructorPredefinedSymbolIndex + | index==PD_OverloadedConsSymbol + # ({pds_ident,pds_def},cs) = cs!cs_predef_symbols.[pd_cons_symbol] + # glob_object = {glob_object & ds_index=pds_def,ds_ident=pds_ident} + = ({pattern & ap_symbol.glob_object=glob_object},cs) + | index==PD_OverloadedNilSymbol + # ({pds_ident,pds_def},cs) = cs!cs_predef_symbols.[pd_nil_symbol] + # glob_object = {glob_object & ds_index=pds_def,ds_ident=pds_ident} + = ({pattern & ap_symbol.glob_object=glob_object},cs) + = abort "replace_overloaded_symbol_in_pattern" + transform_pattern (AP_Basic basic_val opt_var) patterns pattern_scheme pattern_variables defaul result_expr _ var_store expr_heap opt_dynamics cs # pattern = { bp_value = basic_val, bp_expr = result_expr, bp_position = NoPos} pattern_variables = cons_optional opt_var pattern_variables @@ -630,9 +829,7 @@ where # free_var = { fv_name = name, fv_info_ptr = var_info, fv_def_level = NotALevel, fv_count = 0 } (new_bound_var, expr_heap) = allocate_bound_var free_var expr_heap case_ident = { id_name = case_name, id_info = nilPtr } - (new_case, var_store, expr_heap, cs_error) = build_and_merge_case patterns defaul (Var new_bound_var) case_ident False var_store expr_heap cs.cs_error - cs = {cs & cs_error = cs_error} new_defaul = insert_as_default new_case result_expr = (NoPattern, pattern_scheme, (cons_optional opt_var pattern_variables), Yes (Yes free_var, new_defaul), @@ -693,6 +890,8 @@ where = [AlgebraicPatterns index [pattern] \\ pattern <- patterns] split_patterns (BasicPatterns basicType patterns) = [BasicPatterns basicType [pattern] \\ pattern <- patterns] + split_patterns (OverloadedListPatterns overloaded_list_type decons_expr patterns) + = [OverloadedListPatterns overloaded_list_type decons_expr [pattern] \\ pattern <- patterns] split_patterns (DynamicPatterns patterns) = [DynamicPatterns [pattern] \\ pattern <- patterns] split_patterns NoPattern @@ -1263,6 +1462,7 @@ where # (pattern, accus, ps, e_info, cs) = checkPattern expr No p_input accus ps e_info cs (patterns, length, accus, ps, e_info, cs) = check_tuple_patterns exprs p_input accus ps e_info cs = ([pattern : patterns], inc length, accus, ps, e_info, cs) + checkPattern (PE_Record record opt_type fields) opt_var p_input=:{pi_mod_index, pi_is_node_pattern} accus=:(var_env, array_patterns) ps e_info cs # (opt_record_and_fields, e_info, cs) = checkFields pi_mod_index fields opt_type e_info cs = case opt_record_and_fields of @@ -1287,7 +1487,6 @@ where # (pattern, (var_env, array_patterns), ps, e_info, cs) = checkPattern bind_src No p_input (var_env, array_patterns) ps e_info cs = (pattern, (var_env, array_patterns, ps, e_info, cs)) - add_bound_variable (AP_Algebraic symbol index patterns No) {bind_dst = {glob_object={fs_var}}} ps_var_heap # (new_info_ptr, ps_var_heap) = newPtr VI_Empty ps_var_heap = (AP_Algebraic symbol index patterns (Yes { bind_src = fs_var, bind_dst = new_info_ptr}), ps_var_heap) @@ -1315,10 +1514,13 @@ where checkPattern (PE_Bound bind) opt_var p_input accus ps e_info cs = checkBoundPattern bind opt_var p_input accus ps e_info cs + checkPattern (PE_Ident id) opt_var p_input accus ps e_info cs = checkIdentPattern cIsNotInExpressionList id opt_var p_input accus ps e_info cs + checkPattern PE_WildCard opt_var p_input accus ps e_info cs = (AP_WildCard No, accus, ps, e_info, cs) + checkPattern (PE_ArrayPattern selections) opt_var p_input (var_env, array_patterns) ps e_info cs # (var_env, ap_selections, ps_var_heap, cs) = foldSt (check_array_selection p_input.pi_def_level) selections (var_env, [], ps.ps_var_heap, cs) @@ -1354,6 +1556,7 @@ checkPattern (PE_ArrayPattern selections) opt_var p_input (var_env, array_patter check_rhs _ _ (var_env, ap_selections, var_heap, cs) = (var_env, ap_selections, var_heap, { cs & cs_error = checkError "variable expected on right hand side of array pattern" "" cs.cs_error }) + checkPattern expr opt_var p_input accus ps e_info cs = abort "checkPattern: do not know how to handle pattern" ---> expr @@ -1397,8 +1600,6 @@ where determine_pattern_symbol mod_index id_index id_kind id_name cons_defs modules error = (id_index, NoIndex, 0, NoPrio, NoIndex, cons_defs, modules, checkError id_name "constructor expected" error) - - checkBoundPattern {bind_src,bind_dst} opt_var p_input (var_env, array_patterns) ps e_info cs=:{cs_symbol_table} | isLowerCaseName bind_dst.id_name # (entry, cs_symbol_table) = readPtr bind_dst.id_info cs_symbol_table @@ -1414,7 +1615,6 @@ checkBoundPattern {bind_src,bind_dst} opt_var p_input (var_env, array_patterns) -> checkPattern bind_src (Yes { bind_src = bind_dst, bind_dst = new_info_ptr }) p_input (new_var_env, array_patterns) ps e_info cs = checkPattern bind_src opt_var p_input (var_env, array_patterns) ps e_info { cs & cs_error = checkError bind_dst "variable expected" cs.cs_error } - checkPatternVariable :: !Level !SymbolTableEntry !Ident !VarInfoPtr !*CheckState -> !*CheckState checkPatternVariable def_level entry=:{ste_def_level,ste_kind} ident=:{id_info} var_info cs=:{cs_symbol_table,cs_error} | ste_kind == STE_Empty || def_level > ste_def_level @@ -1461,11 +1661,11 @@ convertSubPattern (AP_Algebraic cons_symbol type_index args opt_var) result_expr # (var_args, result_expr, pattern_position, var_store, expr_heap, opt_dynamics, cs) = convertSubPatterns args result_expr pattern_position var_store expr_heap opt_dynamics cs type_symbol = { glob_module = cons_symbol.glob_module, glob_object = type_index } - alg_pattern = { ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = pattern_position } - case_guards = AlgebraicPatterns type_symbol [alg_pattern] ({bind_src,bind_dst}, var_store) = determinePatternVariable opt_var var_store (var_expr_ptr, expr_heap) = newPtr EI_Empty expr_heap (case_expr_ptr, expr_heap) = newPtr EI_Empty expr_heap + # alg_patterns = [{ ap_symbol = cons_symbol, ap_vars = var_args, ap_expr = result_expr, ap_position = pattern_position }] + # (case_guards,expr_heap,cs) = make_case_guards cons_symbol type_symbol alg_patterns expr_heap cs = ({ fv_name = bind_src, fv_info_ptr = bind_dst, fv_def_level = NotALevel, fv_count = 0 }, Case { case_expr = Var { var_name = bind_src, var_info_ptr = bind_dst, var_expr_ptr = var_expr_ptr }, case_guards = case_guards, case_default = No, case_ident = No, case_info_ptr = case_expr_ptr, @@ -1508,7 +1708,6 @@ convertSubPattern (AP_WildCard opt_var) result_expr pattern_position var_store e convertSubPattern (AP_Empty _) result_expr pattern_position var_store expr_heap opt_dynamics cs = convertSubPattern (AP_WildCard No) EE pattern_position var_store expr_heap opt_dynamics cs - checkAndTransformPatternIntoBind free_vars [{nd_dst,nd_alts,nd_locals,nd_position} : local_defs] e_input=:{ei_expr_level,ei_mod_index} e_state e_info cs # cs = pushErrorAdmin (newPosition {id_name="node definition", id_info=nilPtr} nd_position) cs # (bind_src, free_vars, e_state, e_info, cs) = checkRhs free_vars nd_alts nd_locals e_input e_state e_info cs @@ -1521,8 +1720,6 @@ checkAndTransformPatternIntoBind free_vars [{nd_dst,nd_alts,nd_locals,nd_positio checkAndTransformPatternIntoBind free_vars [] e_input e_state e_info cs = ([], free_vars, e_state, e_info, cs) - - transfromPatternIntoBind :: !Index !Level !AuxiliaryPattern !Expression !Position !*VarHeap !*ExpressionHeap !*ExpressionInfo !*CheckState -> *(![LetBind], !*VarHeap, !*ExpressionHeap, !*ExpressionInfo, !*CheckState) transfromPatternIntoBind mod_index def_level (AP_Variable name var_info _) src_expr position var_store expr_heap e_info cs @@ -1687,8 +1884,6 @@ where = (AP_Basic bv opt_var, ums) unfold_pattern_macro mod_index macro_ident opt_var _ expr ums=:{ums_error} = (AP_Empty macro_ident, { ums & ums_error = checkError macro_ident "illegal rhs for a pattern macro" ums_error }) - - checkSelectors end_with_update free_vars [ selector : selectors ] e_input e_state e_info cs | isEmpty selectors @@ -1980,8 +2175,6 @@ buildApplication symbol form_arity act_arity is_fun args e_state=:{es_expr_heap} = (app, e_state, checkError symbol.symb_name "used with too many arguments" error) = (app, e_state, error) - - buildPattern mod_index (APK_Constructor type_index) cons_symb args opt_var ps e_info cs = (AP_Algebraic cons_symb type_index args opt_var, ps, e_info, cs) buildPattern mod_index APK_Macro {glob_object} args opt_var ps e_info=:{ef_modules,ef_cons_defs} cs=:{cs_error} @@ -1989,7 +2182,6 @@ buildPattern mod_index APK_Macro {glob_object} args opt_var ps e_info=:{ef_modul = unfoldPatternMacro mod_index glob_object.ds_index args opt_var ps ef_modules ef_cons_defs cs_error = (pattern, ps, { e_info & ef_modules = ef_modules, ef_cons_defs = ef_cons_defs }, { cs & cs_error = cs_error }) - getPredefinedGlobalSymbol :: !Index !Index !STE_Kind !Int !*CheckState -> (!Global DefinedSymbol, !*CheckState) getPredefinedGlobalSymbol symb_index module_index req_ste_kind arity cs=:{cs_predef_symbols,cs_symbol_table} # (pre_def_mod, cs_predef_symbols) = cs_predef_symbols![module_index] @@ -2039,7 +2231,6 @@ buildTypeCase type_case_dynamic type_case_patterns type_case_default type_case_i } - determinePatternVariable (Yes bind) var_heap = (bind, var_heap) determinePatternVariable No var_heap |