--- parser3/src/main/compile.y 2002/01/31 17:12:04 1.178 +++ parser3/src/main/compile.y 2002/09/13 10:43:26 1.191 @@ -5,7 +5,7 @@ Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) Author: Alexander Petrosyan (http://design.ru/paf) - $Id: compile.y,v 1.178 2002/01/31 17:12:04 paf Exp $ + $Id: compile.y,v 1.191 2002/09/13 10:43:26 paf Exp $ */ /** @@ -107,12 +107,12 @@ static int yylex(YYSTYPE *lvalp, void *p all: one_big_piece { Method& method=*NEW Method(POOL, - *main_method_name, + PC.request->main_method_name, Method::CT_ANY, 0, 0, /*min, max numbered_params_count*/ 0/*param_names*/, 0/*local_names*/, $1/*parser_code*/, 0/*native_code*/); - PC.cclass->add_method(*main_method_name, method); + PC.cclass->add_method(PC.request->main_method_name, method); } | methods; @@ -132,7 +132,7 @@ control_method: '@' STRING '\n' YYERROR; } if(command==CLASS_NAME) { - if(PC.cclass->base()) { // already changed from default? + if(PC.cclass->base_class()) { // already changed from default? strcpy(PC.error, "class already have a name '"); strncat(PC.error, PC.cclass->name().cstr(), 100); strcat(PC.error, "'"); @@ -154,27 +154,28 @@ control_method: '@' STRING '\n' for(int i=0; isize(); i+=2) PC.request->use_file(*LA2S(strings_code, i)); } else if(command==BASE_NAME) { - if(PC.cclass->base()) { // already changed from default? + if(PC.cclass->base_class()) { // already changed from default? strcpy(PC.error, "class already have a base '"); - strncat(PC.error, PC.cclass->base()->name().cstr(), 100); + strncat(PC.error, PC.cclass->base_class()->name().cstr(), 100); strcat(PC.error, "'"); YYERROR; } if(strings_code->size()==1*2) { const String& base_name=*LA2S(strings_code); - VClass *base=static_cast( + Value *vbase_class=static_cast( PC.request->classes().get(base_name)); - if(!base) { + VStateless_class *base_class=vbase_class?vbase_class->get_class():0; + if(!base_class) { strcpy(PC.error, base_name.cstr()); strcat(PC.error, ": undefined class in @"BASE_NAME); YYERROR; } // @CLASS == @BASE sanity check - if(PC.cclass==base) { + if(PC.cclass==base_class) { strcpy(PC.error, "@"CLASS_NAME" equals @"BASE_NAME); YYERROR; } - PC.cclass->set_base(*base); + PC.cclass->set_base(base_class); } else { strcpy(PC.error, "@"BASE_NAME" must contain sole name"); YYERROR; @@ -239,8 +240,11 @@ action: get | put | call; /* get */ get: get_value { - $$=$1; /* stack: resulting value */ - O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ + $$=$1; /* stack: resulting value */ + changetail_or_append($$, + OP_GET_ELEMENT, false, /*->*/OP_GET_ELEMENT__WRITE, + /*or */OP_WRITE_VALUE + ); /* value=pop; wcontext.write(value) */ }; get_value: '$' get_name_value { $$=$2 }; get_name_value: name_without_curly_rdive EON | name_in_curly_rdive; @@ -252,13 +256,20 @@ name_without_curly_rdive_read: name_with $$=N(POOL); Array *diving_code=$1; const String *first_name=LA2S(diving_code); + // self.xxx... -> xxx... + // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... if(first_name && *first_name==SELF_ELEMENT_NAME) { O($$, OP_WITH_SELF); /* stack: starting context */ P($$, diving_code, /* skip over... */ - diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); + diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); } else { O($$, OP_WITH_READ); /* stack: starting context */ + + // ^if ELEMENT -> ^if ELEMENT_OR_OPERATOR + // OP_VALUE+string+OP_GET_ELEMENT. -> OP_VALUE+string+OP_GET_ELEMENT_OR_OPERATOR. + if(PC.in_call_value && diving_code->size()==3) + diving_code->put_int(2, OP_GET_ELEMENT_OR_OPERATOR); P($$, diving_code); } /* diving code; stack: current context */ @@ -280,11 +291,13 @@ name_expr_wdive_root: name_expr_dive_cod $$=N(POOL); Array *diving_code=$1; const String *first_name=LA2S(diving_code); + // $self.xxx... -> $xxx... + // OP_VALUE+string+OP_GET_ELEMENT+... -> OP_WITH_SELF+... if(first_name && *first_name==SELF_ELEMENT_NAME) { O($$, OP_WITH_SELF); /* stack: starting context */ P($$, diving_code, /* skip over... */ - diving_code->size()>2?3/*OP_+string+get_element*/:2/*OP_+string*/); + diving_code->size()>=3?3/*OP_VALUE+string+OP_GET_ELEMENTx*/:2/*OP_+string*/); } else { O($$, OP_WITH_ROOT); /* stack: starting context */ P($$, diving_code); @@ -310,15 +323,17 @@ construct_square: '[' any_constructor_co } ; construct_round: '(' expr_value ')' { + $$=N(POOL); + O($$, OP_PREPARE_TO_EXPRESSION); // stack: context, name - $$=$2; // stack: context, name, value + P($$, $2); // stack: context, name, value O($$, OP_CONSTRUCT_EXPR); /* value=pop->as_expr_result; name=pop; context=pop; construct(context,name,value) */ } ; construct_curly: '{' maybe_codes '}' { // stack: context, name $$=N(POOL); - CCA($$, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */ + OA($$, OP_CURLY_CODE__CONSTRUCT, $2); /* code=pop; name=pop; context=pop; construct(context,name,junction(code)) */ }; any_constructor_code_value: @@ -328,9 +343,9 @@ any_constructor_code_value: ; constructor_code_value: constructor_code { $$=N(POOL); - O($$, OP_CREATE_EWPOOL); /* stack: empty write context */ - P($$, $1); /* some code that writes to that context */ - O($$, OP_REDUCE_EWPOOL); /* context=pop; stack: context.value() */ + OA($$, OP_OBJECT_POOL, $1); /* stack: empty write context */ + /* some code that writes to that context */ + /* context=pop; stack: context.value() */ }; constructor_code: codes__excluding_sole_str_literal; codes__excluding_sole_str_literal: action | code codes { $$=$1; P($$, $2) }; @@ -339,28 +354,27 @@ codes__excluding_sole_str_literal: actio call: call_value { $$=$1; /* stack: value */ - O($$, OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ + changetail_or_append($$, + OP_CALL, true, /*->*/ OP_CALL__WRITE, + /*or */OP_WRITE_VALUE); /* value=pop; wcontext.write(value) */ }; call_value: '^' { - PC.object_constructor_allowed=true; - push_OCA(PC, true); + PC.in_call_value=true; } call_name { - PC.object_constructor_allowed=false; - pop_OCA(PC); + PC.in_call_value=false; } store_params EON { /* ^field.$method{vasya} */ $$=$3; /* with_xxx,diving code; stack: context,method_junction */ - O($$, OP_GET_METHOD_FRAME); /* stack: context,method_frame */ YYSTYPE params_code=$5; - if(params_code->size()==3) // probably [] case. [OP_VALUE + Void + STORE_PARAM] + if(params_code->size()==3) { // probably [] case. [OP_VALUE + Void + STORE_PARAM] if(Value *value=LA2V(params_code)) // it is OP_VALUE + value? if(!value->is_defined()) // value is VVoid? params_code=0; // ^zzz[] case. don't append lone empty param. - if(params_code) - P($$, params_code); // filling method_frame.store_params - O($$, OP_CALL); // method_frame=pop; ncontext=pop; call(ncontext,method_frame) stack: value + } + /* stack: context, method_junction */ + OA($$, OP_CALL, params_code); // method_frame=make frame(pop junction); ncontext=pop; call(ncontext,method_frame) stack: value }; call_name: name_without_curly_rdive; @@ -392,11 +406,11 @@ store_code_param_part: code_param_value }; store_expr_param_part: write_expr_value { $$=N(POOL); - PEA($$, $1); + OA($$, OP_EXPR_CODE__STORE_PARAM, $1); }; store_curly_param_part: maybe_codes { $$=N(POOL); - PCA($$, $1); + OA($$, OP_CURLY_CODE__STORE_PARAM, $1); }; code_param_value: void_value /* optimized [;...] case */ @@ -404,7 +418,9 @@ code_param_value: | constructor_code_value /* [something complex] */ ; write_expr_value: expr_value { - $$=$1; + $$=N(POOL); + O($$, OP_PREPARE_TO_EXPRESSION); + P($$, $1); O($$, OP_WRITE_EXPR_RESULT); }; @@ -425,9 +441,7 @@ name_advance1: name_expr_value { name_advance2: name_expr_value { /* stack: context */ $$=$1; /* stack: context,name */ - O($$, PC.operator_call_allowed?OP_GET_ELEMENT_OR_OPERATOR:OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ - // only ^FIRST.part.allowed.to.be.an.operator - PC.operator_call_allowed=false; + O($$, OP_GET_ELEMENT); /* name=pop; context=pop; stack: context.get_element(name) */ } | STRING BOGUS ; @@ -442,18 +456,19 @@ name_expr_subvar_value: '$' subvar_ref_n O($$, OP_GET_ELEMENT); }; name_expr_with_subvar_value: STRING subvar_get_writes { + Array *code; + { + change_string_literal_to_write_string_literal(code=$1); + P(code, $2); + } $$=N(POOL); - O($$, OP_CREATE_EWPOOL); - P($$, $1); - O($$, OP_WRITE_VALUE); - P($$, $2); - O($$, OP_REDUCE_EWPOOL); + OA($$, OP_STRING_POOL, code); }; name_square_code_value: '[' codes ']' { $$=N(POOL); - O($$, OP_CREATE_EWPOOL); - P($$, $2); - O($$, OP_REDUCE_EWPOOL); + OA($$, OP_OBJECT_POOL, $2); /* stack: empty write context */ + /* some code that writes to that context */ + /* context=pop; stack: context.value() */ }; subvar_ref_name_rdive: STRING { $$=N(POOL); @@ -471,15 +486,20 @@ class_prefix: | class_constructor_prefix ; class_static_prefix: STRING ':' { - // drop allow code after "name:" - PC.operator_call_allowed=false; - $$=$1; // stack: class name string + if(*LA2S($$) == BASE_NAME) { // pseude BASE class + if(VStateless_class *base=PC.cclass->base_class()) { + change_string_literal_value($$, base->name()); + } else { + strcpy(PC.error, "no base class declared"); + YYERROR; + } + } O($$, OP_GET_CLASS); }; class_constructor_prefix: class_static_prefix ':' { $$=$1; - if(!PC.object_constructor_allowed) { + if(!PC.in_call_value) { strcpy(PC.error, ":: not allowed here"); YYERROR; } @@ -490,6 +510,7 @@ class_constructor_prefix: class_static_p /* expr */ expr_value: expr { + // see OP_PREPARE_TO_EXPRESSION!! if(($$=$1)->size()==2) // only one string literal in there? change_string_literal_to_double_literal($$); // make that string literal Double }; @@ -519,8 +540,8 @@ expr: | expr '&' expr { $$=$1; P($$, $3); O($$, OP_BIN_AND) } | expr '|' expr { $$=$1; P($$, $3); O($$, OP_BIN_OR) } | expr '#' expr { $$=$1; P($$, $3); O($$, OP_BIN_XOR) } -| expr "&&" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_AND) } -| expr "||" expr { $$=$1; PNC($$, $3); O($$, OP_LOG_OR) } +| expr "&&" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_AND) } +| expr "||" expr { $$=$1; OA($$, OP_NESTED_CODE, $3); O($$, OP_LOG_OR) } | expr "##" expr { $$=$1; P($$, $3); O($$, OP_LOG_XOR) } | expr '<' expr { $$=$1; P($$, $3); O($$, OP_NUM_LT) } | expr '>' expr { $$=$1; P($$, $3); O($$, OP_NUM_GT) } @@ -539,9 +560,9 @@ expr: string_inside_quotes_value: maybe_codes { $$=N(POOL); - O($$, OP_CREATE_SWPOOL); /* stack: empty write context */ - P($$, $1); /* some code that writes to that context */ - O($$, OP_REDUCE_SWPOOL); /* context=pop; stack: context.get_string() */ + OA($$, OP_STRING_POOL, $1); /* stack: empty write context */ + /* some code that writes to that context */ + /* context=pop; stack: context.get_string() */ }; /* basics */ @@ -842,7 +863,7 @@ default: skip_analized=1; result=DEXISTS; goto break2; - default: + default: // minus result=c; goto break2; } @@ -941,9 +962,12 @@ default: if( PC.ls==LS_EXPRESSION_VAR_NAME_WITH_COLON || PC.ls==LS_EXPRESSION_VAR_NAME_WITHOUT_COLON) { - // name in expr ends also before binary operators + // name in expr ends also before switch(c) { + // expression minus case '-': + // expression integer division + case '\\': pop_LS(PC); PC.source--; if(--PC.col<0) { PC.line--; PC.col=-1; } result=EON; @@ -973,7 +997,7 @@ default: case '&': case '|': case '=': case '!': // common delimiters - case ',': case '?': + case ',': case '?': case '#': // before call case '^': pop_LS(PC);