X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=lib%2Fas3%2Fparser.y;h=ce8f26206905e5367a45e7a3c5c1ea720df4dd09;hp=9c762b64f5c661abd78108daec07d70c4c95d8be;hb=780e53f414a281c516c153a578638c4f7414434c;hpb=88468a6e138b719215705d5b33050dc04b1eb357 diff --git a/lib/as3/parser.y b/lib/as3/parser.y index 9c762b6..ce8f262 100644 --- a/lib/as3/parser.y +++ b/lib/as3/parser.y @@ -31,6 +31,9 @@ #include "registry.h" #include "code.h" #include "opcodes.h" +#include "compiler.h" + +extern int a3_lex(); %} @@ -50,18 +53,26 @@ double number_float; code_t*code; typedcode_t value; - typedcode_list_t*value_list; + //typedcode_list_t*value_list; + codeandnumber_t value_list; param_t* param; params_t params; string_t str; char*id; constant_t*constant; + for_start_t for_start; + abc_exception_t *exception; + regexp_t regexp; + struct { + abc_exception_list_t *l; + code_t*finally; + } catch_list; } -%token T_IDENTIFIER +%token T_IDENTIFIER T_NAMESPACE %token T_STRING -%token T_REGEXP +%token T_REGEXP %token T_EMPTY %token T_INT %token T_UINT @@ -69,62 +80,79 @@ %token T_SHORT %token T_FLOAT -%token KW_IMPLEMENTS +%token T_FOR "for" +%token T_WHILE "while" +%token T_DO "do" +%token T_SWITCH "switch" + +%token KW_IMPLEMENTS "implements" %token KW_NAMESPACE "namespace" %token KW_PACKAGE "package" -%token KW_PROTECTED -%token KW_PUBLIC -%token KW_PRIVATE +%token KW_PROTECTED "protected" +%token KW_PUBLIC "public" +%token KW_PRIVATE "private" %token KW_USE "use" -%token KW_INTERNAL +%token KW_INTERNAL "internal" %token KW_NEW "new" -%token KW_NATIVE +%token KW_NATIVE "native" %token KW_FUNCTION "function" +%token KW_FINALLY "finally" %token KW_UNDEFINED "undefined" -%token KW_FOR "for" +%token KW_CONTINUE "continue" %token KW_CLASS "class" %token KW_CONST "const" +%token KW_CATCH "catch" +%token KW_CASE "case" %token KW_SET "set" %token KW_VOID "void" -%token KW_STATIC +%token KW_THROW "throw" +%token KW_STATIC "static" +%token KW_WITH "with" +%token KW_INSTANCEOF "instanceof" %token KW_IMPORT "import" %token KW_RETURN "return" %token KW_TYPEOF "typeof" %token KW_INTERFACE "interface" %token KW_NULL "null" %token KW_VAR "var" -%token KW_DYNAMIC -%token KW_OVERRIDE -%token KW_FINAL +%token KW_DYNAMIC "dynamic" +%token KW_OVERRIDE "override" +%token KW_FINAL "final" +%token KW_EACH "each" %token KW_GET "get" +%token KW_TRY "try" %token KW_SUPER "super" -%token KW_EXTENDS +%token KW_EXTENDS "extends" %token KW_FALSE "false" %token KW_TRUE "true" %token KW_BOOLEAN "Boolean" %token KW_UINT "uint" %token KW_INT "int" -%token KW_WHILE "while" %token KW_NUMBER "Number" %token KW_STRING "String" +%token KW_DEFAULT "default" %token KW_DELETE "delete" %token KW_IF "if" %token KW_ELSE "else" %token KW_BREAK "break" %token KW_IS "is" +%token KW_IN "in" %token KW_AS "as" +%token T_DICTSTART "{ (dictionary)" %token T_EQEQ "==" %token T_EQEQEQ "===" %token T_NE "!=" %token T_NEE "!==" %token T_LE "<=" %token T_GE ">=" +%token T_ORBY "|=" %token T_DIVBY "/=" %token T_MODBY "%=" %token T_MULBY "*=" %token T_PLUSBY "+=" %token T_MINUSBY "-=" +%token T_XORBY "^=" %token T_SHRBY ">>=" %token T_SHLBY "<<=" %token T_USHRBY ">>>=" @@ -139,26 +167,30 @@ %token T_USHR ">>>" %token T_SHR ">>" -%type X_IDENTIFIER PACKAGE +%type FOR_START +%type X_IDENTIFIER PACKAGE FOR_IN_INIT MAYBE_IDENTIFIER %type VARCONST %type CODE -%type CODEPIECE -%type CODEBLOCK MAYBECODE -%type PACKAGE_DECLARATION -%type FUNCTION_DECLARATION -%type VARIABLE_DECLARATION ONE_VARIABLE VARIABLE_LIST -%type CLASS_DECLARATION -%type NAMESPACE_DECLARATION -%type INTERFACE_DECLARATION +%type CODEPIECE CODE_STATEMENT +%type CODEBLOCK MAYBECODE MAYBE_CASE_LIST CASE_LIST DEFAULT CASE SWITCH WITH +%type PACKAGE_DECLARATION SLOT_DECLARATION +%type FUNCTION_DECLARATION PACKAGE_INITCODE +%type VARIABLE_DECLARATION ONE_VARIABLE VARIABLE_LIST THROW +%type CATCH FINALLY +%type CATCH_LIST CATCH_FINALLY_LIST +%type CLASS_DECLARATION +%type NAMESPACE_DECLARATION +%type INTERFACE_DECLARATION %type VOIDEXPRESSION %type EXPRESSION NONCOMMAEXPRESSION %type MAYBEEXPRESSION %type E DELETE %type CONSTANT -%type FOR IF WHILE MAYBEELSE BREAK RETURN -%type USE_NAMESPACE +%type FOR FOR_IN IF WHILE DO_WHILE MAYBEELSE BREAK RETURN CONTINUE TRY +%type INNERFUNCTION +%type USE_NAMESPACE %type FOR_INIT -%type IMPORT +%type IMPORT %type MAYBETYPE %type GETSET %type PARAM @@ -170,17 +202,16 @@ %type IMPLEMENTS_LIST %type EXTENDS %type EXTENDS_LIST -%type CLASS PACKAGEANDCLASS QNAME -%type QNAME_LIST +%type CLASS PACKAGEANDCLASS CLASS_SPEC +%type CLASS_SPEC_LIST %type TYPE -%type VAR //%type VARIABLE %type VAR_READ %type NEW //%type T_IDENTIFIER %type MODIFIER %type FUNCTIONCALL -%type MAYBE_EXPRESSION_LIST EXPRESSION_LIST MAYBE_PARAM_VALUES +%type MAYBE_EXPRESSION_LIST EXPRESSION_LIST EXPRESSION_LIST_AND_COMMA MAYBE_PARAM_VALUES MAYBE_EXPRPAIR_LIST EXPRPAIR_LIST // precedence: from low to high @@ -194,11 +225,11 @@ %right '?' ':' %left "||" %left "&&" -%nonassoc '|' -%nonassoc '^' +%left '|' +%left '^' %nonassoc '&' %nonassoc "==" "!=" "===" "!==" -%nonassoc "is" "as" +%nonassoc "is" "as" "in" %nonassoc "<=" '<' ">=" '>' "instanceof" // TODO: support "a < b < c" syntax? %left "<<" ">>" ">>>" %left below_minus @@ -206,25 +237,45 @@ %left '/' '*' '%' %left plusplus_prefix minusminus_prefix '~' '!' "void" "delete" "typeof" //FIXME: *unary* + - should be here, too %left "--" "++" -%left '[' ']' '{' "new" '.' ".." "::" -%nonassoc T_IDENTIFIER +%nonassoc below_curly + +%left '(' +%left new2 +%left '[' ']' "new" '{' "{ (dictionary)" '.' ".." "::" '@' + +%left T_IDENTIFIER +%left above_identifier %left below_else %nonassoc "else" -%left '(' // needed for "return" precedence: %nonassoc T_STRING T_REGEXP %nonassoc T_INT T_UINT T_BYTE T_SHORT T_FLOAT -%nonassoc "false" "true" "null" "undefined" "super" +%nonassoc "false" "true" "null" "undefined" "super" "function" +%left above_function + %{ -static int yyerror(char*s) +static int a3_error(char*s) { syntaxerror("%s", s); + return 0; //make gcc happy +} + + +static char* concat2(const char* t1, const char* t2) +{ + int l1 = strlen(t1); + int l2 = strlen(t2); + char*text = malloc(l1+l2+1); + memcpy(text , t1, l1); + memcpy(text+l1, t2, l2); + text[l1+l2] = 0; + return text; } -static char* concat3str(const char* t1, const char* t2, const char* t3) +static char* concat3(const char* t1, const char* t2, const char* t3) { int l1 = strlen(t1); int l2 = strlen(t2); @@ -243,43 +294,71 @@ typedef struct _import { DECLARE_LIST(import); +DECLARE(methodstate); +DECLARE_LIST(methodstate); + typedef struct _classstate { /* class data */ classinfo_t*info; abc_class_t*abc; - code_t*init; - code_t*static_init; + + methodstate_t*init; + methodstate_t*static_init; + //code_t*init; + //code_t*static_init; + + char has_constructor; } classstate_t; -typedef struct _methodstate { +struct _methodstate { /* method data */ - memberinfo_t*info; - dict_t*vars; + methodinfo_t*info; char late_binding; - /* code that needs to be executed at the start of - a method (like initializing local registers) */ - code_t*initcode; char is_constructor; char has_super; -} methodstate_t; + char is_global; + int variable_count; + + dict_t*unresolved_variables; + + char inner; + char uses_parent_function; + int uses_slots; + dict_t*slots; + + abc_method_t*abc; + int var_index; // for inner methods + char is_a_slot; // for inner methods + + code_t*header; + abc_exception_list_t*exceptions; + + methodstate_list_t*innerfunctions; +}; typedef struct _state { + struct _state*old; int level; - + char*package; import_list_t*wildcard_imports; dict_t*imports; char has_own_imports; + char new_vars; // e.g. transition between two functions classstate_t*cls; methodstate_t*method; + + char*exception_name; + + dict_t*vars; } state_t; typedef struct _global { abc_file_t*file; abc_script_t*init; - - int variable_count; + dict_t*token2info; + dict_t*file2token2info; } global_t; static global_t*global = 0; @@ -290,23 +369,24 @@ DECLARE_LIST(state); #define MULTINAME(m,x) \ multiname_t m;\ namespace_t m##_ns;\ - registry_fill_multiname(&m, &m##_ns, x); + (x)->package; \ + registry_fill_multiname(&m, &m##_ns, (slotinfo_t*)(x)); -#define MEMBER_MULTINAME(m,f) \ +#define MEMBER_MULTINAME(m,f,n) \ multiname_t m;\ namespace_t m##_ns;\ if(f) { \ - m##_ns.access = flags2access(f->flags); \ + m##_ns.access = ((slotinfo_t*)(f))->access; \ m##_ns.name = ""; \ m.type = QNAME; \ m.ns = &m##_ns; \ m.namespace_set = 0; \ - m.name = f->name; \ + m.name = ((slotinfo_t*)(f))->name; \ } else { \ m.type = MULTINAME; \ m.ns =0; \ m.namespace_set = &nopackage_namespace_set; \ - m.name = f->name; \ + m.name = n; \ } /* warning: list length of namespace set is undefined */ @@ -329,30 +409,21 @@ static namespace_list_t nl2 = {&ns2,&nl3}; static namespace_list_t nl1 = {&ns1,&nl2}; static namespace_set_t nopackage_namespace_set = {&nl1}; -static state_list_t*state_stack=0; - -static void init_globals() -{ - global = rfx_calloc(sizeof(global_t)); -} - static void new_state() { NEW(state_t, s); - NEW(state_list_t, sl); - state_t*oldstate = state; if(state) memcpy(s, state, sizeof(state_t)); //shallow copy - sl->next = state_stack; - sl->state = s; if(!s->imports) { s->imports = dict_new(); } - state_stack = sl; state = s; state->level++; state->has_own_imports = 0; + state->vars = dict_new(); + state->old = oldstate; + state->new_vars = 0; } static void state_has_imports() { @@ -361,42 +432,121 @@ static void state_has_imports() state->has_own_imports = 1; } +static void state_destroy(state_t*state) +{ + if(state->has_own_imports) { + list_free(state->wildcard_imports); + dict_destroy(state->imports);state->imports=0; + } + if(state->imports && (!state->old || state->old->imports!=state->imports)) { + dict_destroy(state->imports);state->imports=0; + } + if(state->vars) { + int t; + for(t=0;tvars->hashsize;t++) { + dictentry_t*e =state->vars->slots[t]; + while(e) { + free(e->data);e->data=0; + e = e->next; + } + } + dict_destroy(state->vars);state->vars=0; + } + + free(state); +} + static void old_state() { - if(!state_stack || !state_stack->next) + if(!state || !state->old) syntaxerror("invalid nesting"); - state_t*oldstate = state; - state_list_t*old = state_stack; - state_stack = state_stack->next; - free(old); - state = state_stack->state; - /*if(state->method->initcode) { - printf("residual initcode\n"); - code_dump(state->method->initcode, 0, 0, "", stdout); - }*/ - if(oldstate->has_own_imports) { - list_free(oldstate->wildcard_imports); - dict_destroy(oldstate->imports);oldstate->imports=0; - } - if(state->method) - state->method->initcode = - code_append(state->method->initcode, - oldstate->method->initcode); -} -void initialize_state() + state_t*leaving = state; + + state = state->old; + + if(as3_pass>1 && leaving->method && leaving->method != state->method && !leaving->method->inner) { + free(leaving->method); + leaving->method=0; + } + if(as3_pass>1 && leaving->cls && leaving->cls != state->cls) { + free(leaving->cls); + leaving->cls=0; + } + + state_destroy(leaving); +} + +static code_t* method_header(methodstate_t*m); +static code_t* wrap_function(code_t*c,code_t*header, code_t*body); +static void function_initvars(methodstate_t*m, params_t*params, int flags, char var0); + + +static char* internal_filename_package = 0; +void initialize_file(char*filename) { - init_globals(); + if(state) { + syntaxerror("invalid call to initialize_file during parsing of another file"); + } new_state(); + state->package = internal_filename_package = strdup(filename); + + global->token2info = dict_lookup(global->file2token2info, + current_filename // use long version + ); + if(!global->token2info) { + global->token2info = dict_new2(&ptr_type); + dict_put(global->file2token2info, current_filename, global->token2info); + } + + if(as3_pass==1) { + state->method = rfx_calloc(sizeof(methodstate_t)); + dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method); + } else { + state->method = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount); + function_initvars(state->method, 0, 0, 1); + global->init = abc_initscript(global->file); + state->method->late_binding = 1; // init scripts use getglobalscope, so we need a getlocal0/pushscope + } +} + +void finish_file() +{ + if(!state || state->level!=1) { + syntaxerror("unexpected end of file in pass %d", as3_pass); + } + + if(as3_pass==2) { + code_t*header = method_header(state->method); + code_t*c = wrap_function(header, 0, global->init->method->body->code); + global->init->method->body->code = c; + free(state->method);state->method=0; + } + + //free(state->package);state->package=0; // used in registry + state_destroy(state);state=0; +} +void initialize_parser() +{ + global = rfx_calloc(sizeof(global_t)); global->file = abc_file_new(); global->file->flags &= ~ABCFILE_LAZY; - - global->init = abc_initscript(global->file, 0); - code_t*c = global->init->method->body->code; + global->file2token2info = dict_new(); + global->token2info = 0; +} - c = abc_getlocal_0(c); - c = abc_pushscope(c); - +void* finish_parser() +{ + dict_free_all(global->file2token2info, 1, (void*)dict_destroy); + + global->token2info=0; + + return global->file; +} + + +static void xx_scopetest() +{ /* findpropstrict doesn't just return a scope object- it also makes it "active" somehow. Push local_0 on the scope stack and read it back with findpropstrict, it'll @@ -422,274 +572,484 @@ void initialize_state() c = abc_getlocal_3(c); c = abc_kill(c, 3); c = abc_iftrue(c,xx);*/ +} - c = abc_findpropstrict(c, "[package]::trace"); - c = abc_pushstring(c, "[entering global init function]"); - c = abc_callpropvoid(c, "[package]::trace", 1); +typedef struct _variable { + int index; + classinfo_t*type; + char init; + methodstate_t*is_inner_method; +} variable_t; + +static variable_t* find_variable(state_t*s, char*name) +{ + while(s) { + variable_t*v = 0; + v = dict_lookup(s->vars, name); + if(v) return v; + if(s->new_vars) break; + s = s->old; + } + return 0; +} +static variable_t* find_slot(state_t*s, const char*name) +{ + if(s->method && s->method->slots) + return dict_lookup(s->method->slots, name); + return 0; +} + +static variable_t* find_variable_safe(state_t*s, char*name) +{ + variable_t* v = find_variable(s, name); + if(!v) + syntaxerror("undefined variable: %s", name); + return v; +} +static char variable_exists(char*name) +{ + return dict_contains(state->vars, name); +} +code_t*defaultvalue(code_t*c, classinfo_t*type); + +static variable_t* new_variable2(const char*name, classinfo_t*type, char init, char maybeslot) +{ + if(maybeslot) { + variable_t*v = find_slot(state, name); + if(v) + return v; + } + + NEW(variable_t, v); + v->index = state->method->variable_count++; + v->type = type; + v->init = init; + + dict_put(state->vars, name, v); + + return v; +} +static int new_variable(const char*name, classinfo_t*type, char init, char maybeslot) +{ + return new_variable2(name, type, init, maybeslot)->index; +} + +#define TEMPVARNAME "__as3_temp__" +static int gettempvar() +{ + variable_t*v = find_variable(state, TEMPVARNAME); + if(v) + return v->index; + return new_variable(TEMPVARNAME, 0, 0, 0); +} + +code_t* var_block(code_t*body) +{ + code_t*c = 0; + code_t*k = 0; + int t; + int num=0; + for(t=0;tvars->hashsize;t++) { + dictentry_t*e = state->vars->slots[t]; + while(e) { + variable_t*v = (variable_t*)e->data; + if(v->type && v->init) { + c = defaultvalue(c, v->type); + c = abc_setlocal(c, v->index); + k = abc_kill(k, v->index); + num++; + } + e = e->next; + } + } + + if(k) { + code_t*x = body; + while(x) { + if(x->opcode== OPCODE___BREAK__ || + x->opcode== OPCODE___CONTINUE__) { + /* link kill code before break/continue */ + code_t*e = code_dup(k); + code_t*s = code_start(e); + s->prev = x->prev; + if(x->prev) { + x->prev->next = s; + } + e->next = x; + x->prev = e; + } + x = x->prev; + } + } - global->init->method->body->code = c; + c = code_append(c, body); + c = code_append(c, k); + return c; +} + +void unknown_variable(char*name) +{ + if(!state->method->unresolved_variables) + state->method->unresolved_variables = dict_new(); + if(!dict_contains(state->method->unresolved_variables, name)) + dict_put(state->method->unresolved_variables, name, 0); +} + +#define parserassert(b) {if(!(b)) parsererror(__FILE__, __LINE__,__func__);} + +static void parsererror(const char*file, int line, const char*f) +{ + syntaxerror("internal error in %s, %s:%d", f, file, line); } -void* finalize_state() + + +static code_t* method_header(methodstate_t*m) { - if(state->level!=1) { - syntaxerror("unexpected end of file"); + code_t*c = 0; + if(m->uses_slots || (m->late_binding && !m->inner)) { + c = abc_getlocal_0(c); + c = abc_pushscope(c); + } + if(m->uses_slots) { + c = abc_newactivation(c); + c = abc_pushscope(c); + } + methodstate_list_t*l = m->innerfunctions; + while(l) { + parserassert(l->methodstate->abc); + if(m->uses_slots && l->methodstate->is_a_slot) { + c = abc_getscopeobject(c, 1); + c = abc_newfunction(c, l->methodstate->abc); + c = abc_dup(c); + c = abc_setlocal(c, l->methodstate->var_index); + c = abc_setslot(c, l->methodstate->var_index); + } else { + c = abc_newfunction(c, l->methodstate->abc); + c = abc_setlocal(c, l->methodstate->var_index); + } + free(l->methodstate);l->methodstate=0; + l = l->next; + } + if(m->header) { + c = code_append(c, m->header); + m->header = 0; + } + if(m->is_constructor && !m->has_super) { + // call default constructor + c = abc_getlocal_0(c); + c = abc_constructsuper(c, 0); } - abc_method_body_t*m = global->init->method->body; - //__ popscope(m); + list_free(m->innerfunctions); + m->innerfunctions = 0; + return c; +} - __ findpropstrict(m, "[package]::trace"); - __ pushstring(m, "[leaving global init function]"); - __ callpropvoid(m, "[package]::trace", 1); - __ returnvoid(m); - return global->file; + +static code_t* wrap_function(code_t*c,code_t*header, code_t*body) +{ + c = code_append(c, header); + c = code_append(c, var_block(body)); + /* append return if necessary */ + if(!c || (c->opcode != OPCODE_RETURNVOID && + c->opcode != OPCODE_RETURNVALUE)) { + c = abc_returnvoid(c); + } + return c; } static void startpackage(char*name) { - if(state->package) { - syntaxerror("Packages can not be nested."); - } new_state(); /*printf("entering package \"%s\"\n", name);*/ - state->package = name; + state->package = strdup(name); } static void endpackage() { /*printf("leaving package \"%s\"\n", state->package);*/ + + //used e.g. in classinfo_register: + //free(state->package);state->package=0; + old_state(); } -char*globalclass=0; -static void startclass(int flags, char*classname, classinfo_t*extends, classinfo_list_t*implements, char interface) +#define FLAG_PUBLIC 256 +#define FLAG_PROTECTED 512 +#define FLAG_PRIVATE 1024 +#define FLAG_PACKAGEINTERNAL 2048 +#define FLAG_NAMESPACE 4096 + +static int flags2access(int flags) +{ + int access = 0; + if(flags&FLAG_PUBLIC) { + if(access&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL)) + syntaxerror("invalid combination of access levels"); + access = ACCESS_PACKAGE; + } else if(flags&FLAG_PRIVATE) { + if(access&(FLAG_PUBLIC|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL)) + syntaxerror("invalid combination of access levels"); + access = ACCESS_PRIVATE; + } else if(flags&FLAG_PROTECTED) { + if(access&(FLAG_PUBLIC|FLAG_PRIVATE|FLAG_PACKAGEINTERNAL)) + syntaxerror("invalid combination of access levels"); + access = ACCESS_PROTECTED; + } else { + access = ACCESS_PACKAGEINTERNAL; + } + return access; +} + +static void function_initvars(methodstate_t*m, params_t*params, int flags, char var0) +{ + if(var0) { + int index = -1; + if(m->inner) + index = new_variable("this", 0, 0, 0); + else if(!m->is_global) + index = new_variable((flags&FLAG_STATIC)?"class":"this", state->cls?state->cls->info:0, 0, 0); + else + index = new_variable("globalscope", 0, 0, 0); + if(index) + *(int*)0=0; + parserassert(!index); + } + if(m->uses_slots) { + /* as variables and slots share the same number, make sure + that those variable indices are reserved */ + m->variable_count = m->uses_slots; + } + + if(params) { + param_list_t*p=0; + for(p=params->list;p;p=p->next) { + new_variable(p->param->name, p->param->type, 0, 1); + } + } + + methodstate_list_t*l = m->innerfunctions; + while(l) { + methodstate_t*m = l->methodstate; + variable_t* v = new_variable2(m->info->name, TYPE_FUNCTION(m->info), 0, 1); + m->var_index = v->index; + v->is_inner_method = m; + l = l->next; + } +} + + +char*as3_globalclass=0; +static void startclass(int flags, char*classname, classinfo_t*extends, classinfo_list_t*implements) { if(state->cls) { syntaxerror("inner classes now allowed"); } new_state(); - state->cls = rfx_calloc(sizeof(classstate_t)); - token_list_t*t=0; classinfo_list_t*mlist=0; - /*printf("entering class %s\n", name); - printf(" modifiers: ");for(t=modifiers->tokens;t;t=t->next) printf("%s ", t->token);printf("\n"); - if(extends) - printf(" extends: %s.%s\n", extends->package, extends->name); - printf(" implements (%d): ", list_length(implements)); - for(mlist=implements;mlist;mlist=mlist->next) { - printf("%s ", mlist->classinfo?mlist->classinfo->name:0); - } - printf("\n"); - */ - if(flags&~(FLAG_INTERNAL|FLAG_PUBLIC|FLAG_FINAL)) + if(flags&~(FLAG_PACKAGEINTERNAL|FLAG_PUBLIC|FLAG_FINAL|FLAG_DYNAMIC|FLAG_INTERFACE)) syntaxerror("invalid modifier(s)"); - if((flags&(FLAG_PUBLIC|FLAG_INTERNAL)) == (FLAG_PUBLIC|FLAG_INTERNAL)) + if((flags&(FLAG_PUBLIC|FLAG_PACKAGEINTERNAL)) == (FLAG_PUBLIC|FLAG_PACKAGEINTERNAL)) syntaxerror("public and internal not supported at the same time."); /* create the class name, together with the proper attributes */ int access=0; char*package=0; - if(!(flags&FLAG_PUBLIC) && !state->package) { - access = ACCESS_PRIVATE; package = current_filename; - } else if(!(flags&FLAG_PUBLIC) && state->package) { + if(!(flags&FLAG_PUBLIC) && state->package==internal_filename_package) { + access = ACCESS_PRIVATE; package = internal_filename_package; + } else if(!(flags&FLAG_PUBLIC) && state->package!=internal_filename_package) { access = ACCESS_PACKAGEINTERNAL; package = state->package; - } else if(state->package) { + } else if(state->package!=internal_filename_package) { access = ACCESS_PACKAGE; package = state->package; } else { syntaxerror("public classes only allowed inside a package"); } - if(registry_findclass(package, classname)) { - syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname); - } - + if(as3_pass==1) { + state->cls = rfx_calloc(sizeof(classstate_t)); + state->cls->init = rfx_calloc(sizeof(methodstate_t)); + state->cls->static_init = rfx_calloc(sizeof(methodstate_t)); + /* notice: we make no effort to initialize the top variable (local0) here, + even though it has special meaning. We just rely on the facat + that pass 1 won't do anything with variables */ + + dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->cls); - /* build info struct */ - int num_interfaces = (list_length(implements)); - state->cls->info = classinfo_register(access, package, classname, num_interfaces); - state->cls->info->superclass = extends?extends:TYPE_OBJECT; - int pos = 0; - classinfo_list_t*l = implements; - for(l=implements;l;l=l->next) { - state->cls->info->interfaces[pos++] = l->classinfo; + /* set current method to constructor- all code within the class-level (except + static variable initializations) will be executed during construction time */ + state->method = state->cls->init; + + if(registry_find(package, classname)) { + syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname); + } + /* build info struct */ + int num_interfaces = (list_length(implements)); + state->cls->info = classinfo_register(access, package, classname, num_interfaces); + state->cls->info->flags |= flags & (FLAG_DYNAMIC|FLAG_INTERFACE|FLAG_FINAL); } - multiname_t*extends2 = sig2mname(extends); + if(as3_pass == 2) { + state->cls = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount); + + state->method = state->cls->init; + parserassert(state->cls && state->cls->info); + + function_initvars(state->cls->init, 0, 0, 1); + function_initvars(state->cls->static_init, 0, 0, 0); + + if(extends && (extends->flags & FLAG_FINAL)) + syntaxerror("Can't extend final class '%s'", extends->name); + + /* fill out interfaces and extends (we couldn't resolve those during the first pass) */ + state->cls->info->superclass = extends?extends:TYPE_OBJECT; + int pos = 0; + classinfo_list_t*l = implements; + for(l=implements;l;l=l->next) { + if(!(l->classinfo->flags & FLAG_INTERFACE)) + syntaxerror("'%s' is not an interface", l->classinfo->name); + state->cls->info->interfaces[pos++] = l->classinfo; + } - MULTINAME(classname2,state->cls->info); + /* generate the abc code for this class */ + MULTINAME(classname2,state->cls->info); + multiname_t*extends2 = sig2mname(extends); - /*if(extends) { - state->cls_init = abc_getlocal_0(state->cls_init); - state->cls_init = abc_constructsuper(state->cls_init, 0); - }*/ + state->cls->abc = abc_class_new(global->file, &classname2, extends2); + if(state->cls->info->flags&FLAG_FINAL) abc_class_final(state->cls->abc); + if(!(state->cls->info->flags&FLAG_DYNAMIC)) abc_class_sealed(state->cls->abc); + if(state->cls->info->flags&FLAG_INTERFACE) { + abc_class_interface(state->cls->abc); + } - state->cls->abc = abc_class_new(global->file, &classname2, extends2); - if(flags&FLAG_FINAL) abc_class_final(state->cls->abc); - if(flags&FLAG_DYNAMIC) abc_class_sealed(state->cls->abc); - if(interface) abc_class_interface(state->cls->abc); + abc_class_protectedNS(state->cls->abc, classname); - for(mlist=implements;mlist;mlist=mlist->next) { - MULTINAME(m, mlist->classinfo); - abc_class_add_interface(state->cls->abc, &m); - } + for(mlist=implements;mlist;mlist=mlist->next) { + MULTINAME(m, mlist->classinfo); + abc_class_add_interface(state->cls->abc, &m); + } - /* now write the construction code for this class */ - int slotindex = abc_initscript_addClassTrait(global->init, &classname2, state->cls->abc); + /* write the construction code for this class to the global init + function */ + int slotindex = abc_initscript_addClassTrait(global->init, &classname2, state->cls->abc); - abc_method_body_t*m = global->init->method->body; - __ getglobalscope(m); - classinfo_t*s = extends; + abc_method_body_t*m = global->init->method->body; + __ getglobalscope(m); + classinfo_t*s = extends; - int count=0; - - while(s) { - //TODO: take a look at the current scope stack, maybe - // we can re-use something - s = s->superclass; - if(!s) - break; - - multiname_t*s2 = sig2mname(s); - __ getlex2(m, s2); - multiname_destroy(s2); - - __ pushscope(m); count++; - m->code = m->code->prev->prev; // invert - } - /* continue appending after last op end */ - while(m->code && m->code->next) m->code = m->code->next; - - /* TODO: if this is one of *our* classes, we can also - do a getglobalscope/getslot (which references - the init function's slots) */ - if(extends2) { - __ getlex2(m, extends2); - __ dup(m); - /* notice: we get a Verify Error #1107 if the top elemnt on the scope - stack is not the superclass */ - __ pushscope(m);count++; - } else { - __ pushnull(m); - /* notice: we get a verify error #1107 if the top element on the scope - stack is not the global object */ - __ getlocal_0(m); - __ pushscope(m);count++; - } - __ newclass(m,state->cls->abc); - while(count--) { - __ popscope(m); - } - __ setslot(m, slotindex); - - /* flash.display.MovieClip handling */ - if(!globalclass && (flags&FLAG_PUBLIC) && classinfo_equals(registry_getMovieClip(),extends)) { - if(state->package && state->package[0]) { - globalclass = concat3str(state->package, ".", classname); + int count=0; + + while(s) { + //TODO: take a look at the current scope stack, maybe + // we can re-use something + s = s->superclass; + if(!s) + break; + + multiname_t*s2 = sig2mname(s); + __ getlex2(m, s2); + multiname_destroy(s2); + + __ pushscope(m); count++; + m->code = m->code->prev->prev; // invert + } + /* continue appending after last op end */ + while(m->code && m->code->next) m->code = m->code->next; + + /* TODO: if this is one of *our* classes, we can also + do a getglobalscope/getslot (which references + the init function's slots) */ + if(extends2) { + __ getlex2(m, extends2); + __ dup(m); + /* notice: we get a Verify Error #1107 if the top elemnt on the scope + stack is not the superclass */ + __ pushscope(m);count++; } else { - globalclass = strdup(classname); + __ pushnull(m); + /* notice: we get a verify error #1107 if the top element on the scope + stack is not the global object */ + __ getlocal_0(m); + __ pushscope(m);count++; + } + __ newclass(m,state->cls->abc); + while(count--) { + __ popscope(m); + } + __ setslot(m, slotindex); + multiname_destroy(extends2); + + /* flash.display.MovieClip handling */ + + if(!as3_globalclass && (flags&FLAG_PUBLIC) && slotinfo_equals((slotinfo_t*)registry_getMovieClip(),(slotinfo_t*)extends)) { + if(state->package && state->package[0]) { + as3_globalclass = concat3(state->package, ".", classname); + } else { + as3_globalclass = strdup(classname); + } } } - multiname_destroy(extends2); } -static void endclass() +static void setstaticfunction(int x) { - if(state->cls->init) { - if(!state->cls->abc->constructor) { - abc_method_t*m = abc_class_constructor(state->cls->abc, 0); - m->body->code = code_append(m->body->code, state->cls->init); - m->body->code = abc_returnvoid(m->body->code); + if(state->cls) { + if(x&FLAG_STATIC) { + state->method = state->cls->static_init; } else { - code_t*c = state->cls->abc->constructor->body->code; - c = code_append(state->cls->init, c); - state->cls->abc->constructor->body->code = c; - + state->method = state->cls->init; } + } else { + parserassert(state->method); } - if(state->cls->static_init) { - if(!state->cls->abc->static_constructor) { - abc_method_t*m = abc_class_staticconstructor(state->cls->abc, 0); - m->body->code = code_append(m->body->code, state->cls->static_init); - m->body->code = abc_returnvoid(m->body->code); - } else { - state->cls->abc->static_constructor->body->code = - code_append(state->cls->static_init, state->cls->abc->static_constructor->body->code); +} + +static void endclass() +{ + if(as3_pass == 2) { + if(!state->cls->has_constructor && !(state->cls->info->flags&FLAG_INTERFACE)) { + code_t*c = 0; + c = abc_getlocal_0(c); + c = abc_constructsuper(c, 0); + state->cls->init->header = code_append(state->cls->init->header, c); + state->cls->has_constructor=1; + } + if(state->cls->init) { + if(state->cls->info->flags&FLAG_INTERFACE) { + if(state->cls->init->header) + syntaxerror("interface can not have class-level code"); + } else { + abc_method_t*m = abc_class_getconstructor(state->cls->abc, 0); + code_t*c = method_header(state->cls->init); + m->body->code = wrap_function(c, 0, m->body->code); + } + } + if(state->cls->static_init) { + abc_method_t*m = abc_class_getstaticconstructor(state->cls->abc, 0); + code_t*c = method_header(state->cls->static_init); + m->body->code = wrap_function(c, 0, m->body->code); } } old_state(); } -typedef struct _variable { - int index; - classinfo_t*type; -} variable_t; - -static int find_variable(char*name, classinfo_t**m) +void check_code_for_break(code_t*c) { - state_list_t* s = state_stack; - while(s) { - variable_t*v = 0; - if(s->state->method) - v = dict_lookup(s->state->method->vars, name); - if(v) { - if(m) { - *m = v->type; - } - return v->index; + while(c) { + if(c->opcode == OPCODE___BREAK__) { + char*name = string_cstr(c->data[0]); + syntaxerror("Unresolved \"break %s\"", name); } - s = s->next; - } - return -1; -} -static int find_variable_safe(char*name, classinfo_t**m) -{ - int i = find_variable(name, m); - if(i<0) - syntaxerror("undefined variable: %s", name); - return i; -} -static char variable_exists(char*name) -{ - return dict_lookup(state->method->vars, name)!=0; -} -static int new_variable(char*name, classinfo_t*type) -{ - NEW(variable_t, v); - v->index = global->variable_count; - v->type = type; - dict_put(state->method->vars, name, v); - return global->variable_count++; -} -#define TEMPVARNAME "__as3_temp__" -static int gettempvar() -{ - int i = find_variable(TEMPVARNAME, 0); - if(i<0) { - return new_variable(TEMPVARNAME, 0); - } else { - return i; - } -} - -code_t* killvars(code_t*c) -{ - int t; - for(t=0;tmethod->vars->hashsize;t++) { - dictentry_t*e =state->method->vars->slots[t]; - while(e) { - variable_t*v = (variable_t*)e->data; - //do this always, otherwise register types don't match - //in the verifier when doing nested loops - //if(!TYPE_IS_BUILTIN_SIMPLE(type)) { - c = abc_kill(c, v->index); - e = e->next; + if(c->opcode == OPCODE___CONTINUE__) { + char*name = string_cstr(c->data[0]); + syntaxerror("Unresolved \"continue %s\"", name); } + c=c->prev; } - return c; } @@ -702,7 +1062,7 @@ static void check_constant_against_type(classinfo_t*t, constant_t*c) || c->type == CONSTANT_UINT); } else if(TYPE_IS_UINT(t)) { xassert(c->type == CONSTANT_UINT || - (c->type == CONSTANT_INT && c->i>0)); + (c->type == CONSTANT_INT && c->i>=0)); } else if(TYPE_IS_INT(t)) { xassert(c->type == CONSTANT_INT); } else if(TYPE_IS_BOOLEAN(t)) { @@ -711,158 +1071,358 @@ static void check_constant_against_type(classinfo_t*t, constant_t*c) } } -static memberinfo_t*registerfunction(enum yytokentype getset, int flags, char*name, params_t*params, classinfo_t*return_type, int slot) +static void check_override(memberinfo_t*m, int flags) { - memberinfo_t*minfo = 0; - if(getset != KW_GET && getset != KW_SET) { - if(registry_findmember(state->cls->info, name)) { - syntaxerror("class already contains a member/method called '%s'", name); + if(!m) + return; + if(m->parent == state->cls->info) + syntaxerror("class '%s' already contains a method/slot '%s'", m->parent->name, m->name); + if(!m->parent) + syntaxerror("internal error: overriding method %s, which doesn't have parent", m->name); + if(m->access==ACCESS_PRIVATE) + return; + if(m->flags & FLAG_FINAL) + syntaxerror("can't override final member %s", m->name); + if((m->flags & FLAG_STATIC) && !(flags&FLAG_STATIC)) + syntaxerror("can't override static member %s", m->name); + if(!(m->flags & FLAG_STATIC) && (flags&FLAG_STATIC)) + syntaxerror("can't override non-static member %s with static declaration", m->name); + + if(!(flags&FLAG_OVERRIDE)) { + if(m->parent && !(m->parent->flags&FLAG_INTERFACE)) { + if(m->kind == INFOTYPE_METHOD) + syntaxerror("can't override without explicit 'override' declaration"); + else + syntaxerror("can't override '%s'", m->name); } - minfo = memberinfo_register(state->cls->info, name, MEMBER_METHOD); + } +} + +static methodinfo_t*registerfunction(enum yytokentype getset, int flags, char*name, params_t*params, classinfo_t*return_type, int slot) +{ + methodinfo_t*minfo = 0; + U8 access = flags2access(flags); + if(!state->cls) { + //package method + minfo = methodinfo_register_global(access, state->package, name); + minfo->return_type = return_type; + } else if(getset != KW_GET && getset != KW_SET) { + //class method + memberinfo_t* m = registry_findmember(state->cls->info, name, 0); + if(m) { + syntaxerror("class already contains a %s '%s'", infotypename((slotinfo_t*)m), m->name); + } + minfo = methodinfo_register_onclass(state->cls->info, access, name); minfo->return_type = return_type; // getslot on a member slot only returns "undefined", so no need // to actually store these - //state->minfo->slot = state->method->a bc->method->trait->slot_id; + //state->minfo->slot = state->method->abc->method->trait->slot_id; } else { - int gs = getset==KW_GET?MEMBER_GET:MEMBER_SET; + //class getter/setter + int gs = getset==KW_GET?SUBTYPE_GET:SUBTYPE_SET; classinfo_t*type=0; if(getset == KW_GET) type = return_type; - else if(params->list) + else if(params->list && params->list->param) type = params->list->param->type; - if((minfo=registry_findmember(state->cls->info, name))) { - if(minfo->kind & ~(MEMBER_GET|MEMBER_SET)) - syntaxerror("class already contains a member or method called '%s'", name); - if(minfo->kind & gs) + // not sure wether to look into superclasses here, too + minfo = (methodinfo_t*)registry_findmember(state->cls->info, name, 1); + if(minfo) { + if(minfo->kind!=INFOTYPE_SLOT) + syntaxerror("class already contains a method called '%s'", name); + if(!(minfo->subtype & (SUBTYPE_GETSET))) + syntaxerror("class already contains a field called '%s'", name); + if(minfo->subtype & gs) syntaxerror("getter/setter for '%s' already defined", name); /* make a setter or getter into a getset */ - minfo->kind |= gs; - if(!minfo->type) - minfo->type = type; - else - if(type && minfo->type != type) + minfo->subtype |= gs; + if(!minfo->return_type) { + minfo->return_type = type; + } else { + if(minfo && minfo->return_type != type) syntaxerror("different type in getter and setter"); + } } else { - minfo = memberinfo_register(state->cls->info, name, gs); - minfo->type = type; + minfo = methodinfo_register_onclass(state->cls->info, access, name); + minfo->kind = INFOTYPE_SLOT; //hack + minfo->subtype = gs; + minfo->return_type = type; } /* can't assign a slot as getter and setter might have different slots */ //minfo->slot = slot; } + if(flags&FLAG_FINAL) minfo->flags |= FLAG_FINAL; if(flags&FLAG_STATIC) minfo->flags |= FLAG_STATIC; - if(flags&FLAG_PUBLIC) minfo->flags |= FLAG_PUBLIC; - if(flags&FLAG_PRIVATE) minfo->flags |= FLAG_PRIVATE; - if(flags&FLAG_PROTECTED) minfo->flags |= FLAG_PROTECTED; - if(flags&FLAG_INTERNAL) minfo->flags |= FLAG_INTERNAL; + if(flags&FLAG_OVERRIDE) minfo->flags |= FLAG_OVERRIDE; return minfo; } -static int flags2access(int flags) +static void innerfunction(char*name, params_t*params, classinfo_t*return_type) { - int access = 0; - if(flags&FLAG_PUBLIC) { - if(access&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_INTERNAL)) syntaxerror("invalid combination of access levels"); - access = ACCESS_PACKAGE; - } else if(flags&FLAG_PRIVATE) { - if(access&(FLAG_PUBLIC|FLAG_PROTECTED|FLAG_INTERNAL)) syntaxerror("invalid combination of access levels"); - access = ACCESS_PRIVATE; - } else if(flags&FLAG_PROTECTED) { - if(access&(FLAG_PUBLIC|FLAG_PRIVATE|FLAG_INTERNAL)) syntaxerror("invalid combination of access levels"); - access = ACCESS_PROTECTED; - } else { - access = ACCESS_PACKAGEINTERNAL; + //parserassert(state->method && state->method->info); + + methodstate_t*parent_method = state->method; + + if(as3_pass==1) { + return_type = 0; // not valid in pass 1 + } + + new_state(); + state->new_vars = 1; + + if(as3_pass == 1) { + state->method = rfx_calloc(sizeof(methodstate_t)); + state->method->inner = 1; + state->method->variable_count = 0; + state->method->abc = rfx_calloc(sizeof(abc_method_t)); + + NEW(methodinfo_t,minfo); + minfo->kind = INFOTYPE_METHOD; + minfo->access = ACCESS_PACKAGEINTERNAL; + minfo->name = name; + state->method->info = minfo; + + if(parent_method) + list_append(parent_method->innerfunctions, state->method); + + dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method); + + function_initvars(state->method, params, 0, 1); + } + + if(as3_pass == 2) { + state->method = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount); + state->method->variable_count = 0; + parserassert(state->method); + + state->method->info->return_type = return_type; + function_initvars(state->method, params, 0, 1); } - return access; } static void startfunction(token_t*ns, int flags, enum yytokentype getset, char*name, params_t*params, classinfo_t*return_type) { - if(state->method) { + if(state->method && state->method->info) { syntaxerror("not able to start another method scope"); } new_state(); - state->method = rfx_calloc(sizeof(methodstate_t)); - state->method->initcode = 0; - state->method->is_constructor = !strcmp(state->cls->info->name,name); - state->method->has_super = 0; + state->new_vars = 1; + + if(as3_pass == 1) { + state->method = rfx_calloc(sizeof(methodstate_t)); + state->method->has_super = 0; - global->variable_count = 0; - state->method->vars = dict_new(); - /* state->vars is initialized by state_new */ - if(new_variable((flags&FLAG_STATIC)?"class":"this", state->cls->info)!=0) syntaxerror("Internal error"); - param_list_t*p=0; - for(p=params->list;p;p=p->next) { - new_variable(p->param->name, p->param->type); + if(state->cls) { + state->method->is_constructor = !strcmp(state->cls->info->name,name); + } else { + state->method->is_global = 1; + state->method->late_binding = 1; // for global methods, always push local_0 on the scope stack + } + if(state->method->is_constructor) + name = "__as3_constructor__"; + + return_type = 0; + state->method->info = registerfunction(getset, flags, name, params, return_type, 0); + + function_initvars(state->method, params, flags, 1); + + dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method); } - state->method->info = registerfunction(getset, flags, name, params, return_type, 0); + + if(as3_pass == 2) { + state->method = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount); + state->method->variable_count = 0; + parserassert(state->method); + + if(state->cls) { + memberinfo_t*m = registry_findmember(state->cls->info, name, 2); + check_override(m, flags); + } + + if(state->cls) { + state->cls->has_constructor |= state->method->is_constructor; + } + + state->method->info->return_type = return_type; + function_initvars(state->method, params, flags, 1); + } } -static void endfunction(token_t*ns, int flags, enum yytokentype getset, char*name, +static abc_method_t* endfunction(token_t*ns, int flags, enum yytokentype getset, char*name, params_t*params, classinfo_t*return_type, code_t*body) { - namespace_t mname_ns = {flags2access(flags), ""}; - multiname_t mname = {QNAME, &mname_ns, 0, name}; + if(as3_pass==1) { + // store inner methods in variables + function_initvars(state->method, 0, 0, 0); + + methodstate_list_t*ml = state->method->innerfunctions; + dict_t*xvars = dict_new(); + while(ml) { + methodstate_t*m = ml->methodstate; + parserassert(m->inner); + if(m->unresolved_variables) { + dict_t*d = m->unresolved_variables; + int t; + for(t=0;thashsize;t++) { + dictentry_t*l = d->slots[t]; + while(l) { + /* check parent method's variables */ + if(find_variable(state, l->key)) { + m->uses_parent_function = 1; + state->method->uses_slots = 1; + dict_put(xvars, l->key, 0); + } + l = l->next; + } + if(l) break; + } - abc_method_t*f = 0; + dict_destroy(m->unresolved_variables); + m->unresolved_variables = 0; + } + ml = ml->next; + } + if(state->method->uses_slots) { + state->method->slots = dict_new(); + int i = 1; + DICT_ITERATE_ITEMS(state->vars, char*, name, variable_t*, v) { + if(v->index && dict_contains(xvars, name)) { + v->init = 0; + v->index = i++; + if(v->is_inner_method) { + v->is_inner_method->is_a_slot = 1; + } + //v->type = 0; + dict_put(state->method->slots, name, v); + } + } + state->method->uses_slots = i; + dict_destroy(state->vars);state->vars = 0; + } + dict_destroy(xvars); - multiname_t*type2 = sig2mname(return_type); - int slot = 0; - if(state->method->is_constructor) { - f = abc_class_constructor(state->cls->abc, type2); - name = "__as3_constructor__"; - } else { - if(flags&FLAG_STATIC) - f = abc_class_staticmethod(state->cls->abc, type2, &mname); - else - f = abc_class_method(state->cls->abc, type2, &mname); - slot = f->trait->slot_id; + old_state(); + return 0; } - state->method->info->slot = slot; - if(getset == KW_GET) f->trait->kind = TRAIT_GETTER; - if(getset == KW_SET) f->trait->kind = TRAIT_SETTER; - if(params->varargs) f->flags |= METHOD_NEED_REST; + if(as3_pass==2) { + /*if(state->method->uses_parent_function){ + syntaxerror("accessing variables of parent function from inner functions not supported yet"); + }*/ + + abc_method_t*f = 0; + + multiname_t*type2 = sig2mname(return_type); + int slot = 0; + if(state->method->inner) { + f = state->method->abc; + abc_method_init(f, global->file, type2, 1); + } else if(state->method->is_constructor) { + f = abc_class_getconstructor(state->cls->abc, type2); + } else if(!state->method->is_global) { + namespace_t mname_ns = {state->method->info->access, ""}; + multiname_t mname = {QNAME, &mname_ns, 0, name}; + + if(flags&FLAG_STATIC) + f = abc_class_staticmethod(state->cls->abc, type2, &mname); + else + f = abc_class_method(state->cls->abc, type2, &mname); + slot = f->trait->slot_id; + } else { + namespace_t mname_ns = {state->method->info->access, state->package}; + multiname_t mname = {QNAME, &mname_ns, 0, name}; - char opt=0; - param_list_t*p=0; - for(p=params->list;p;p=p->next) { - if(params->varargs && !p->next) { - break; //varargs: omit last parameter in function signature + f = abc_method_new(global->file, type2, 1); + trait_t*t = trait_new_method(&global->init->traits, multiname_clone(&mname), f); + //abc_code_t*c = global->init->method->body->code; + } + //flash doesn't seem to allow us to access function slots + //state->method->info->slot = slot; + + if(flags&FLAG_OVERRIDE) f->trait->attributes |= TRAIT_ATTR_OVERRIDE; + if(getset == KW_GET) f->trait->kind = TRAIT_GETTER; + if(getset == KW_SET) f->trait->kind = TRAIT_SETTER; + if(params->varargs) f->flags |= METHOD_NEED_REST; + + char opt=0; + param_list_t*p=0; + for(p=params->list;p;p=p->next) { + if(params->varargs && !p->next) { + break; //varargs: omit last parameter in function signature + } + multiname_t*m = sig2mname(p->param->type); + list_append(f->parameters, m); + if(p->param->value) { + check_constant_against_type(p->param->type, p->param->value); + opt=1;list_append(f->optional_parameters, p->param->value); + } else if(opt) { + syntaxerror("non-optional parameter not allowed after optional parameters"); + } } - multiname_t*m = sig2mname(p->param->type); - list_append(f->parameters, m); - if(p->param->value) { - check_constant_against_type(p->param->type, p->param->value); - opt=1;list_append(f->optional_parameters, p->param->value); - } else if(opt) { - syntaxerror("non-optional parameter not allowed after optional parameters"); + if(state->method->slots) { + DICT_ITERATE_ITEMS(state->method->slots, char*, name, variable_t*, v) { + if(v->index) { + multiname_t*mname = multiname_new(namespace_new(ACCESS_PACKAGE, ""), name); + multiname_t*type = sig2mname(v->type); + trait_t*t = trait_new_member(&f->body->traits, type, mname, 0); + t->slot_id = v->index; + } + } } + + check_code_for_break(body); + + if(f->body) { + f->body->code = body; + f->body->exceptions = state->method->exceptions; + } else { //interface + if(body) + syntaxerror("interface methods can't have a method body"); + } + + old_state(); + return f; } - f->body->code = body; - old_state(); + return 0; } - - char is_subtype_of(classinfo_t*type, classinfo_t*supertype) { return 1; // FIXME } -void breakjumpsto(code_t*c, code_t*jump) +void breakjumpsto(code_t*c, char*name, code_t*jump) { - while(c->prev) - c=c->prev; while(c) { if(c->opcode == OPCODE___BREAK__) { - c->opcode = OPCODE_JUMP; - c->branch = jump; + string_t*name2 = c->data[0]; + if(!name2->len || !strncmp(name2->str, name, name2->len)) { + c->opcode = OPCODE_JUMP; + c->branch = jump; + } } - c = c->next; + c=c->prev; } } +void continuejumpsto(code_t*c, char*name, code_t*jump) +{ + while(c) { + if(c->opcode == OPCODE___CONTINUE__) { + string_t*name2 = c->data[0]; + if(!name2->len || !strncmp(name2->str, name, name2->len)) { + c->opcode = OPCODE_JUMP; + c->branch = jump; + } + } + c = c->prev; + } +} + +#define IS_INT(a) (TYPE_IS_INT((a)) || TYPE_IS_UINT((a))) +#define IS_NUMBER_OR_INT(a) (TYPE_IS_INT((a)) || TYPE_IS_UINT((a)) || TYPE_IS_NUMBER((a))) +#define BOTH_INT(a,b) (IS_INT(a) && IS_INT(b)) classinfo_t*join_types(classinfo_t*type1, classinfo_t*type2, char op) { @@ -870,6 +1430,15 @@ classinfo_t*join_types(classinfo_t*type1, classinfo_t*type2, char op) return registry_getanytype(); if(TYPE_IS_ANY(type1) || TYPE_IS_ANY(type2)) return registry_getanytype(); + + if(op=='+') { + if(IS_NUMBER_OR_INT(type1) && IS_NUMBER_OR_INT(type2)) { + return TYPE_NUMBER; + } else { + return TYPE_ANY; + } + } + if(type1 == type2) return type1; return registry_getanytype(); @@ -888,19 +1457,13 @@ code_t*converttype(code_t*c, classinfo_t*from, classinfo_t*to) return abc_coerce2(c, &m); } - if(TYPE_IS_NUMBER(from) && TYPE_IS_UINT(to)) { - return abc_coerce2(c, &m); - } - if(TYPE_IS_NUMBER(from) && TYPE_IS_INT(to)) { - return abc_coerce2(c, &m); - } - /* these are subject to overflow */ - if(TYPE_IS_INT(from) && TYPE_IS_UINT(to)) { - return abc_coerce2(c, &m); - } - if(TYPE_IS_UINT(from) && TYPE_IS_INT(to)) { + if((TYPE_IS_NUMBER(from) || TYPE_IS_UINT(from) || TYPE_IS_INT(from)) && + (TYPE_IS_NUMBER(to) || TYPE_IS_UINT(to) || TYPE_IS_INT(to))) { + // allow conversion between number types return abc_coerce2(c, &m); } + //printf("%s.%s\n", from.package, from.name); + //printf("%s.%s\n", to.package, to.name); classinfo_t*supertype = from; while(supertype) { @@ -911,7 +1474,7 @@ code_t*converttype(code_t*c, classinfo_t*from, classinfo_t*to) int t=0; while(supertype->interfaces[t]) { if(supertype->interfaces[t]==to) { - // to type is one of from's interfaces + // target type is one of from's interfaces return abc_coerce2(c, &m); } t++; @@ -922,17 +1485,31 @@ code_t*converttype(code_t*c, classinfo_t*from, classinfo_t*to) return c; if(TYPE_IS_CLASS(from) && TYPE_IS_CLASS(to)) return c; - syntaxerror("can't convert type %s to %s", from->name, to->name); + if(TYPE_IS_NULL(from) && !IS_NUMBER_OR_INT(to)) + return c; + + as3_error("can't convert type %s%s%s to %s%s%s", + from->package, from->package?".":"", from->name, + to->package, to->package?".":"", to->name); + return c; } code_t*defaultvalue(code_t*c, classinfo_t*type) { - if(TYPE_IS_INT(type) || TYPE_IS_UINT(type) || TYPE_IS_FLOAT(type)) { + if(TYPE_IS_INT(type)) { c = abc_pushbyte(c, 0); + } else if(TYPE_IS_UINT(type)) { + c = abc_pushuint(c, 0); + } else if(TYPE_IS_FLOAT(type)) { + c = abc_pushnan(c); } else if(TYPE_IS_BOOLEAN(type)) { c = abc_pushfalse(c); + } else if(!type) { + //c = abc_pushundefined(c); } else { c = abc_pushnull(c); + MULTINAME(m, type); + c = abc_coerce2(c, &m); } return c; } @@ -942,24 +1519,20 @@ char is_pushundefined(code_t*c) return (c && !c->prev && !c->next && c->opcode == OPCODE_PUSHUNDEFINED); } -void parserassert(int b) +static slotinfo_t* find_class(char*name) { - if(!b) syntaxerror("internal error: assertion failed"); -} - -static classinfo_t* find_class(char*name) -{ - classinfo_t*c=0; + slotinfo_t*c=0; - c = registry_findclass(state->package, name); + c = registry_find(state->package, name); + if(c) return c; /* try explicit imports */ dictentry_t* e = dict_get_slot(state->imports, name); + if(c) return c; while(e) { - if(c) - break; if(!strcmp(e->key, name)) { - c = (classinfo_t*)e->data; + c = (slotinfo_t*)e->data; + if(c) return c; } e = e->next; } @@ -967,18 +1540,42 @@ static classinfo_t* find_class(char*name) /* try package.* imports */ import_list_t*l = state->wildcard_imports; while(l) { - if(c) - break; //printf("does package %s contain a class %s?\n", l->import->package, name); - c = registry_findclass(l->import->package, name); + c = registry_find(l->import->package, name); + if(c) return c; l = l->next; } /* try global package */ - if(!c) { - c = registry_findclass("", name); - } - return c; + c = registry_find("", name); + if(c) return c; + + /* try local "filename" package */ + c = registry_find(internal_filename_package, name); + if(c) return c; + + return 0; +} + +static char is_getlocal(code_t*c) +{ + if(!c || c->prev || c->next) + return 0; + return(c->opcode == OPCODE_GETLOCAL + || c->opcode == OPCODE_GETLOCAL_0 + || c->opcode == OPCODE_GETLOCAL_1 + || c->opcode == OPCODE_GETLOCAL_2 + || c->opcode == OPCODE_GETLOCAL_3); +} +static int getlocalnr(code_t*c) +{ + if(c->opcode == OPCODE_GETLOCAL) {return (ptroff_t)c->data[0];} + else if(c->opcode == OPCODE_GETLOCAL_0) {return 0;} + else if(c->opcode == OPCODE_GETLOCAL_1) {return 1;} + else if(c->opcode == OPCODE_GETLOCAL_2) {return 2;} + else if(c->opcode == OPCODE_GETLOCAL_3) {return 3;} + else syntaxerror("Internal error: opcode %02x is not a getlocal call", c->opcode); + return 0; } static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign, char readbefore) @@ -991,7 +1588,6 @@ static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign, char r [prefix code] ([dup]) [read instruction] [middlepart] [setvar] [write instruction] [getvar] */ - if(in && in->opcode == OPCODE_COERCE_A) { in = code_cutlast(in); } @@ -1031,6 +1627,8 @@ static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign, char r prefix = abc_getlocal(prefix, temp); prefix = abc_swap(prefix); prefix = abc_getlocal(prefix, temp); + if(!use_temp_var); + prefix = abc_kill(prefix, temp); } use_temp_var = 1; } else { @@ -1055,7 +1653,7 @@ static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign, char r } else if(r->opcode == OPCODE_GETLOCAL_3) { write->opcode = OPCODE_SETLOCAL_3; } else { - code_dump(r, 0, 0, "", stdout); + code_dump(r); syntaxerror("illegal lvalue: can't assign a value to this expression"); } code_t* c = 0; @@ -1109,60 +1707,241 @@ static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign, char r c = code_append(c, write); c = code_append(c, r); } else { + code_free(r);r=0; temp = gettempvar(); if(prefix) { c = code_append(c, prefix); - c = abc_dup(c); } c = code_append(c, middlepart); c = abc_dup(c); c = abc_setlocal(c, temp); c = code_append(c, write); c = abc_getlocal(c, temp); + c = abc_kill(c, temp); + } + } + return c; +} + +char is_break_or_jump(code_t*c) +{ + if(!c) + return 0; + if(c->opcode == OPCODE_JUMP || + c->opcode == OPCODE___BREAK__ || + c->opcode == OPCODE___CONTINUE__ || + c->opcode == OPCODE_THROW || + c->opcode == OPCODE_RETURNVOID || + c->opcode == OPCODE_RETURNVALUE) { + return 1; + } + return 0; +} + + +#define IS_FINALLY_TARGET(op) \ + ((op) == OPCODE___CONTINUE__ || \ + (op) == OPCODE___BREAK__ || \ + (op) == OPCODE_RETURNVOID || \ + (op) == OPCODE_RETURNVALUE || \ + (op) == OPCODE___RETHROW__) + +static code_t* insert_finally_lookup(code_t*c, code_t*finally, int tempvar) +{ +#define NEED_EXTRA_STACK_ARG + code_t*finally_label = abc_nop(0); + NEW(lookupswitch_t, l); + //_lookupswitch + + code_t*i = c; + int count=0; + while(i) { + code_t*prev = i->prev; + if(IS_FINALLY_TARGET(i->opcode)) { + code_t*p = prev; + char needvalue=0; + if(i->opcode == OPCODE___RETHROW__ || + i->opcode == OPCODE_RETURNVALUE) { + if(i->opcode == OPCODE___RETHROW__) + i->opcode = OPCODE_THROW; + needvalue=1; + p = abc_coerce_a(p); + p = abc_setlocal(p, tempvar); + } + p = abc_pushbyte(p, count++); + p = abc_jump(p, finally_label); + code_t*target = p = abc_label(p); +#ifdef NEED_EXTRA_STACK_ARG + p = abc_pop(p); +#endif + if(needvalue) { + p = abc_getlocal(p, tempvar); + } + + p->next = i;i->prev = p; + list_append(l->targets, target); } + i = prev; } + code_t*j,*f; + c = abc_pushbyte(c, -1); + c = code_append(c, finally_label); + c = code_append(c, finally); + +#ifdef NEED_EXTRA_STACK_ARG + c = abc_dup(c); +#endif + c = abc_lookupswitch(c, l); + c = l->def = abc_label(c); +#ifdef NEED_EXTRA_STACK_ARG + c = abc_pop(c); +#endif + return c; } -#define IS_INT(a) (TYPE_IS_INT((a).t) || TYPE_IS_UINT((a).t)) -#define BOTH_INT(a,b) (IS_INT(a) && IS_INT(b)) +static code_t* insert_finally_simple(code_t*c, code_t*finally, int tempvar) +{ + code_t*i = c; + while(i) { + code_t*prev = i->prev; + if(IS_FINALLY_TARGET(i->opcode)) { + if(i->opcode == OPCODE___RETHROW__) + i->opcode = OPCODE_THROW; + code_t*end = code_dup(finally); + code_t*start = code_start(end); + if(prev) prev->next = start; + start->prev = prev; + i->prev = end; + end->next = i; + } + i = prev; + } + return code_append(c, finally); +} -%} +code_t* insert_finally(code_t*c, code_t*finally, int tempvar) +{ + if(!finally) + return c; + code_t*i = c; + char cantdup=0; + int num_insertion_points=0; + while(i) { + if(IS_FINALLY_TARGET(i->opcode)) + num_insertion_points++; + i = i->prev; + } + i = finally; + int code_size=0; + while(i) { + code_size++; + if(i->branch || i->opcode == OPCODE_LOOKUPSWITCH) { + cantdup=1; + } + i = i->prev; + } + int simple_version_cost = (1+num_insertion_points)*code_size; + int lookup_version_cost = 4*num_insertion_points + 5; + if(cantdup || simple_version_cost > lookup_version_cost) { + printf("lookup %d > *%d*\n", simple_version_cost, lookup_version_cost); + return insert_finally_lookup(c, finally, tempvar); + } else { + printf("simple *%d* < %d\n", simple_version_cost, lookup_version_cost); + return insert_finally_simple(c, finally, tempvar); + } +} + +#define PASS1 }} if(as3_pass == 1) {{ +#define PASS1END }} if(as3_pass == 2) {{ +#define PASS2 }} if(as3_pass == 2) {{ +#define PASS12 }} {{ +#define PASS12END }} if(as3_pass == 2) {{ + +%} %% /* ------------ code blocks / statements ---------------- */ -PROGRAM: MAYBECODE +PROGRAM: MAYBE_PROGRAM_CODE_LIST + +MAYBE_PROGRAM_CODE_LIST: | PROGRAM_CODE_LIST +PROGRAM_CODE_LIST: PROGRAM_CODE + | PROGRAM_CODE_LIST PROGRAM_CODE + +PROGRAM_CODE: PACKAGE_DECLARATION + | INTERFACE_DECLARATION + | CLASS_DECLARATION + | FUNCTION_DECLARATION + | SLOT_DECLARATION + | PACKAGE_INITCODE + | CONDITIONAL_COMPILATION '{' MAYBE_PROGRAM_CODE_LIST '}' // conditional compilation + | ';' + +MAYBE_INPACKAGE_CODE_LIST: | INPACKAGE_CODE_LIST +INPACKAGE_CODE_LIST: INPACKAGE_CODE + | INPACKAGE_CODE_LIST INPACKAGE_CODE -MAYBECODE: CODE {$$=$1;/*TODO: do something with this code if we're not in a function*/} -MAYBECODE: {$$=code_new();} +INPACKAGE_CODE: INTERFACE_DECLARATION + | CLASS_DECLARATION + | FUNCTION_DECLARATION + | SLOT_DECLARATION + | PACKAGE_INITCODE + | CONDITIONAL_COMPILATION '{' MAYBE_INPACKAGE_CODE_LIST '}' // conditional compilation + | ';' + +MAYBECODE: CODE {$$=$1;} +MAYBECODE: {$$=code_new();} CODE: CODE CODEPIECE {$$=code_append($1,$2);} CODE: CODEPIECE {$$=$1;} -CODEPIECE: PACKAGE_DECLARATION {$$=code_new();/*enters a scope*/} -CODEPIECE: CLASS_DECLARATION {$$=code_new();/*enters a scope*/} -CODEPIECE: FUNCTION_DECLARATION {$$=code_new();/*enters a scope*/} -CODEPIECE: INTERFACE_DECLARATION {$$=code_new();} -CODEPIECE: IMPORT {$$=code_new();/*adds imports to current scope*/} -CODEPIECE: ';' {$$=code_new();} -CODEPIECE: VARIABLE_DECLARATION {$$=$1} -CODEPIECE: VOIDEXPRESSION {$$=$1} -CODEPIECE: FOR {$$=$1} -CODEPIECE: WHILE {$$=$1} -CODEPIECE: BREAK {$$=$1} -CODEPIECE: RETURN {$$=$1} -CODEPIECE: IF {$$=$1} -CODEPIECE: NAMESPACE_DECLARATION {/*TODO*/$$=code_new();} -CODEPIECE: USE_NAMESPACE {/*TODO*/$$=code_new();} - -CODEBLOCK : '{' MAYBECODE '}' {$$=$2;} +// code which also may appear outside a method +CODE_STATEMENT: IMPORT +CODE_STATEMENT: FOR +CODE_STATEMENT: FOR_IN +CODE_STATEMENT: WHILE +CODE_STATEMENT: DO_WHILE +CODE_STATEMENT: SWITCH +CODE_STATEMENT: IF +CODE_STATEMENT: WITH +CODE_STATEMENT: TRY +CODE_STATEMENT: VOIDEXPRESSION +CODE_STATEMENT: USE_NAMESPACE +CODE_STATEMENT: '{' CODE '}' {$$=$2;} +CODE_STATEMENT: '{' '}' {$$=0;} + +// code which may appear anywhere +CODEPIECE: ';' {$$=0;} +CODEPIECE: CODE_STATEMENT +CODEPIECE: VARIABLE_DECLARATION +CODEPIECE: BREAK +CODEPIECE: CONTINUE +CODEPIECE: RETURN +CODEPIECE: THROW +CODEPIECE: CONDITIONAL_COMPILATION '{' CODE '}' {$$=$3;} + +CODEPIECE: NAMESPACE_DECLARATION {/*TODO*/$$=0;} + +//CODEBLOCK : '{' CODE '}' {$$=$2;} +//CODEBLOCK : '{' '}' {$$=0;} CODEBLOCK : CODEPIECE ';' {$$=$1;} CODEBLOCK : CODEPIECE %prec below_semicolon {$$=$1;} +/* ------------ package init code ------------------- */ + +PACKAGE_INITCODE: CODE_STATEMENT { + code_t**cc = &global->init->method->body->code; + *cc = code_append(*cc, $1); +} + +/* ------------ conditional compilation ------------- */ + +CONDITIONAL_COMPILATION: T_IDENTIFIER "::" T_IDENTIFIER + /* ------------ variables --------------------------- */ MAYBEEXPRESSION : '=' NONCOMMAEXPRESSION {$$=$2;} @@ -1170,56 +1949,69 @@ MAYBEEXPRESSION : '=' NONCOMMAEXPRESSION {$$=$2;} $$.t=TYPE_ANY; } -VAR : "const" | "var" -VARIABLE_DECLARATION : VAR VARIABLE_LIST {$$=$2;} +VARIABLE_DECLARATION : "var" VARIABLE_LIST {$$=$2;} +VARIABLE_DECLARATION : "const" VARIABLE_LIST {$$=$2;} VARIABLE_LIST: ONE_VARIABLE {$$ = $1;} VARIABLE_LIST: VARIABLE_LIST ',' ONE_VARIABLE {$$ = code_append($1, $3);} -ONE_VARIABLE: {} T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION +ONE_VARIABLE: T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION { - if(variable_exists($2)) - syntaxerror("Variable %s already defined", $2); +PASS12 + if(variable_exists($1)) + syntaxerror("Variable %s already defined", $1); +PASS1 + new_variable($1, 0, 1, 0); +PASS2 - if(!is_subtype_of($4.t, $3)) { - syntaxerror("Can't convert %s to %s", $4.t->name, - $3->name); + if(!is_subtype_of($3.t, $2)) { + syntaxerror("Can't convert %s to %s", $3.t->name, + $2->name); } - int index = new_variable($2, $3); - - if($3) { - if($4.c->prev || $4.c->opcode != OPCODE_PUSHUNDEFINED) { - $$ = $4.c; - $$ = converttype($$, $4.t, $3); - $$ = abc_setlocal($$, index); - } else { - $$ = defaultvalue(0, $3); - $$ = abc_setlocal($$, index); + char slot = 0; + int index = 0; + if(state->method->uses_slots) { + variable_t* v = find_slot(state, $1); + if(v && !v->init) { + // this variable is stored in a slot + v->init = 1; + v->type = $2; + slot = 1; + index = v->index; } + } + if(!index) { + index = new_variable($1, $2, 1, 0); + } - /* if this is a typed variable: - push default value for type on stack */ - if($3) { - state->method->initcode = defaultvalue(state->method->initcode, $3); - state->method->initcode = abc_setlocal(state->method->initcode, index); + $$ = slot?abc_getscopeobject(0, 1):0; + + if($2) { + if($3.c->prev || $3.c->opcode != OPCODE_PUSHUNDEFINED) { + $$ = code_append($$, $3.c); + $$ = converttype($$, $3.t, $2); + } else { + code_free($3.c); + $$ = defaultvalue($$, $2); } } else { - if($4.c->prev || $4.c->opcode != OPCODE_PUSHUNDEFINED) { - $$ = $4.c; + if($3.c->prev || $3.c->opcode != OPCODE_PUSHUNDEFINED) { + $$ = code_append($$, $3.c); $$ = abc_coerce_a($$); - $$ = abc_setlocal($$, index); } else { - $$ = code_new(); + // don't do anything + code_free($3.c); + code_free($$); + $$ = 0; + break; } } - - /* that's the default for a local register, anyway - else { - state->method->initcode = abc_pushundefined(state->method->initcode); - state->method->initcode = abc_setlocal(state->method->initcode, index); - }*/ - //printf("variable %s -> %d (%s)\n", $2->text, index, $4.t?$4.t->name:""); + if(slot) { + $$ = abc_setslot($$, index); + } else { + $$ = abc_setlocal($$, index); + } } /* ------------ control flow ------------------------- */ @@ -1228,77 +2020,353 @@ MAYBEELSE: %prec below_else {$$ = code_new();} MAYBEELSE: "else" CODEBLOCK {$$=$2;} //MAYBEELSE: ';' "else" CODEBLOCK {$$=$3;} -IF : "if" '(' {new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE { - $$ = state->method->initcode;state->method->initcode=0; +IF : "if" '(' {PASS12 new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE { + + $$ = code_new(); + $$ = code_append($$, $4.c); + code_t*myjmp,*myif = $$ = abc_iffalse($$, 0); + + $$ = code_append($$, $6); + if($7) { + myjmp = $$ = abc_jump($$, 0); + } + myif->branch = $$ = abc_nop($$); + if($7) { + $$ = code_append($$, $7); + myjmp->branch = $$ = abc_nop($$); + } + $$ = var_block($$); + PASS12 old_state(); +} + +FOR_INIT : {$$=code_new();} +FOR_INIT : VARIABLE_DECLARATION +FOR_INIT : VOIDEXPRESSION + +// TODO: why doesn't an %prec above_identifier resolve the r-r conflict here? +// (I don't see any easy way to revolve this conflict otherwise, as we +// can't touch VAR_READ without upsetting the precedence about "return") +FOR_IN_INIT : "var" T_IDENTIFIER MAYBETYPE { + PASS1 $$=$2;new_variable($2,0,1,0); + PASS2 $$=$2;new_variable($2,$3,1,0); +} +FOR_IN_INIT : T_IDENTIFIER { + PASS12 + $$=$1; +} + +FOR_START : T_FOR '(' {PASS12 new_state();$$.name=$1;$$.each=0;} +FOR_START : T_FOR "each" '(' {PASS12 new_state();$$.name=$1;$$.each=1;} + +FOR : FOR_START FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK { + if($1.each) syntaxerror("invalid syntax: ; not allowed in for each statement"); + $$ = code_new(); + $$ = code_append($$, $2); + code_t*loopstart = $$ = abc_label($$); + $$ = code_append($$, $4.c); + code_t*myif = $$ = abc_iffalse($$, 0); + $$ = code_append($$, $8); + code_t*cont = $$ = abc_nop($$); + $$ = code_append($$, $6); + $$ = abc_jump($$, loopstart); + code_t*out = $$ = abc_nop($$); + breakjumpsto($$, $1.name, out); + continuejumpsto($$, $1.name, cont); + myif->branch = out; + + $$ = var_block($$); + PASS12 old_state(); +} + +FOR_IN : FOR_START FOR_IN_INIT "in" EXPRESSION ')' CODEBLOCK { + variable_t*var = find_variable(state, $2); + char*tmp1name = concat2($2, "__tmp1__"); + int it = new_variable(tmp1name, TYPE_INT, 0, 0); + char*tmp2name = concat2($2, "__array__"); + int array = new_variable(tmp1name, 0, 0, 0); + + $$ = code_new(); + $$ = code_append($$, $4.c); + $$ = abc_coerce_a($$); + $$ = abc_setlocal($$, array); + $$ = abc_pushbyte($$, 0); + $$ = abc_setlocal($$, it); + + code_t*loopstart = $$ = abc_label($$); + + $$ = abc_hasnext2($$, array, it); + code_t*myif = $$ = abc_iffalse($$, 0); + $$ = abc_getlocal($$, array); + $$ = abc_getlocal($$, it); + if(!$1.each) + $$ = abc_nextname($$); + else + $$ = abc_nextvalue($$); + $$ = converttype($$, 0, var->type); + $$ = abc_setlocal($$, var->index); + + $$ = code_append($$, $6); + $$ = abc_jump($$, loopstart); + + code_t*out = $$ = abc_nop($$); + breakjumpsto($$, $1.name, out); + continuejumpsto($$, $1.name, loopstart); + + myif->branch = out; + + $$ = var_block($$); + + free(tmp1name); + free(tmp2name); + + PASS12 old_state(); +} + +WHILE : T_WHILE '(' {PASS12 new_state();} EXPRESSION ')' CODEBLOCK { + + $$ = code_new(); + + code_t*myjmp = $$ = abc_jump($$, 0); + code_t*loopstart = $$ = abc_label($$); + $$ = code_append($$, $6); + code_t*cont = $$ = abc_nop($$); + myjmp->branch = cont; + $$ = code_append($$, $4.c); + $$ = abc_iftrue($$, loopstart); + code_t*out = $$ = abc_nop($$); + breakjumpsto($$, $1, out); + continuejumpsto($$, $1, cont); + + $$ = var_block($$); + PASS12 old_state(); +} + +DO_WHILE : T_DO {PASS12 new_state();} CODEBLOCK "while" '(' EXPRESSION ')' { + $$ = code_new(); + code_t*loopstart = $$ = abc_label($$); + $$ = code_append($$, $3); + code_t*cont = $$ = abc_nop($$); + $$ = code_append($$, $6.c); + $$ = abc_iftrue($$, loopstart); + code_t*out = $$ = abc_nop($$); + breakjumpsto($$, $1, out); + continuejumpsto($$, $1, cont); + + $$ = var_block($$); + PASS12 old_state(); +} + +BREAK : "break" %prec prec_none { + $$ = abc___break__(0, ""); +} +BREAK : "break" T_IDENTIFIER { + $$ = abc___break__(0, $2); +} +CONTINUE : "continue" %prec prec_none { + $$ = abc___continue__(0, ""); +} +CONTINUE : "continue" T_IDENTIFIER { + $$ = abc___continue__(0, $2); +} + +MAYBE_CASE_LIST : {$$=0;} +MAYBE_CASE_LIST : CASE_LIST {$$=$1;} +MAYBE_CASE_LIST : DEFAULT {$$=$1;} +MAYBE_CASE_LIST : CASE_LIST DEFAULT {$$=code_append($1,$2);} +CASE_LIST: CASE {$$=$1;} +CASE_LIST: CASE_LIST CASE {$$=code_append($$,$2);} + +CASE: "case" E ':' MAYBECODE { + $$ = abc_dup(0); + $$ = code_append($$, $2.c); + code_t*j = $$ = abc_ifne($$, 0); + $$ = code_append($$, $4); + if($$->opcode != OPCODE___BREAK__) { + $$ = abc___fallthrough__($$, ""); + } + code_t*e = $$ = abc_nop($$); + j->branch = e; +} +DEFAULT: "default" ':' MAYBECODE { + $$ = $3; +} +SWITCH : T_SWITCH '(' {PASS12 new_state();} E ')' '{' MAYBE_CASE_LIST '}' { + $$=$4.c; + $$ = code_append($$, $7); + code_t*out = $$ = abc_pop($$); + breakjumpsto($$, $1, out); + + code_t*c = $$,*lastblock=0; + while(c) { + if(c->opcode == OPCODE_IFNE) { + if(!c->next) syntaxerror("internal error in fallthrough handling"); + lastblock=c->next; + } else if(c->opcode == OPCODE___FALLTHROUGH__) { + if(lastblock) { + c->opcode = OPCODE_JUMP; + c->branch = lastblock; + } else { + /* fall through end of switch */ + c->opcode = OPCODE_NOP; + } + } + c=c->prev; + } + + $$ = var_block($$); + PASS12 old_state(); +} + +/* ------------ try / catch /finally ---------------- */ + +CATCH: "catch" '(' T_IDENTIFIER MAYBETYPE ')' {PASS12 new_state(); + state->exception_name=$3; + PASS1 new_variable($3, 0, 0, 0); + PASS2 new_variable($3, $4, 0, 0); + } + '{' MAYBECODE '}' { + namespace_t name_ns = {ACCESS_PACKAGE, ""}; + multiname_t name = {QNAME, &name_ns, 0, $3}; + + NEW(abc_exception_t, e) + e->exc_type = sig2mname($4); + e->var_name = multiname_clone(&name); + $$ = e; + + code_t*c = 0; + int i = find_variable_safe(state, $3)->index; + e->target = c = abc_nop(0); + c = abc_setlocal(c, i); + c = code_append(c, $8); + c = abc_kill(c, i); + + c = var_block(c); + PASS12 old_state(); +} +FINALLY: "finally" '{' {PASS12 new_state();state->exception_name=0;} MAYBECODE '}' { + $4 = var_block($4); + if(!$4) { + $$=0; + } else { + NEW(abc_exception_t, e) + e->exc_type = 0; //all exceptions + e->var_name = 0; //no name + e->target = 0; + e->to = abc_nop(0); + e->to = code_append(e->to, $4); + $$ = e; + } + PASS12 old_state(); +} - $$ = code_append($$, $4.c); - code_t*myjmp,*myif = $$ = abc_iffalse($$, 0); - - $$ = code_append($$, $6); - if($7) { - myjmp = $$ = abc_jump($$, 0); +CATCH_LIST: CATCH {$$.l=list_new();$$.finally=0;list_append($$.l,$1);} +CATCH_LIST: CATCH_LIST CATCH {$$=$1;list_append($$.l,$2);} +CATCH_FINALLY_LIST: CATCH_LIST {$$=$1;} +CATCH_FINALLY_LIST: CATCH_LIST FINALLY { + $$ = $1; + $$.finally = 0; + if($2) { + list_append($$.l,$2); + $$.finally = $2->to;$2->to=0; } - myif->branch = $$ = abc_label($$); - if($7) { - $$ = code_append($$, $7); - myjmp->branch = $$ = abc_label($$); +} +CATCH_FINALLY_LIST: FINALLY { + $$.l=list_new(); + $$.finally = 0; + if($1) { + list_append($$.l,$1); + $$.finally = $1->to;$1->to=0; } - - $$ = killvars($$);old_state(); } -FOR_INIT : {$$=code_new();} -FOR_INIT : VARIABLE_DECLARATION -FOR_INIT : VOIDEXPRESSION +TRY : "try" '{' {PASS12 new_state();} MAYBECODE '}' CATCH_FINALLY_LIST { + code_t*out = abc_nop(0); -FOR : "for" '(' {new_state();} FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK { - $$ = state->method->initcode;state->method->initcode=0; + code_t*start = abc_nop(0); + $$ = code_append(start, $4); + if(!is_break_or_jump($4)) { + $$ = abc_jump($$, out); + } + code_t*end = $$ = abc_nop($$); + + int tmp; + if($6.finally) + tmp = new_variable("__finally__", 0, 0, 0); + + abc_exception_list_t*l = $6.l; + int count=0; + while(l) { + abc_exception_t*e = l->abc_exception; + if(e->var_name) { + $$ = code_append($$, e->target); + $$ = abc_jump($$, out); + } else { + parserassert((ptroff_t)$6.finally); + // finally block + e->target = $$ = abc_nop($$); + $$ = abc___rethrow__($$); + } + + e->from = start; + e->to = end; - $$ = code_append($$, $4); - code_t*loopstart = $$ = abc_label($$); - $$ = code_append($$, $6.c); - code_t*myif = $$ = abc_iffalse($$, 0); - $$ = code_append($$, $10); - $$ = code_append($$, $8); - $$ = abc_jump($$, loopstart); - code_t*out = $$ = abc_label($$); - breakjumpsto($$, out); - myif->branch = out; + l = l->next; + } + $$ = code_append($$, out); - $$ = killvars($$);old_state(); + $$ = insert_finally($$, $6.finally, tmp); + + list_concat(state->method->exceptions, $6.l); + + $$ = var_block($$); + PASS12 old_state(); } -WHILE : "while" '(' {new_state();} EXPRESSION ')' CODEBLOCK { - $$ = state->method->initcode;state->method->initcode=0; - - code_t*myjmp = $$ = abc_jump($$, 0); - code_t*loopstart = $$ = abc_label($$); - $$ = code_append($$, $6); - myjmp->branch = $$ = abc_label($$); - $$ = code_append($$, $4.c); - $$ = abc_iftrue($$, loopstart); - code_t*out = $$ = abc_label($$); - breakjumpsto($$, out); +/* ------------ throw ------------------------------- */ - $$ = killvars($$);old_state(); +THROW : "throw" EXPRESSION { + $$=$2.c; + $$=abc_throw($$); +} +THROW : "throw" %prec prec_none { + if(!state->exception_name) + syntaxerror("re-throw only possible within a catch block"); + variable_t*v = find_variable(state, state->exception_name); + $$=code_new(); + $$=abc_getlocal($$, v->index); + $$=abc_throw($$); } -BREAK : "break" { - $$ = abc___break__(0); +/* ------------ with -------------------------------- */ + +WITH : "with" '(' EXPRESSION ')' CODEBLOCK { + $$ = $3.c; + $$ = abc_pushscope($$); + $$ = code_append($$, $5); + $$ = abc_popscope($$); } /* ------------ packages and imports ---------------- */ X_IDENTIFIER: T_IDENTIFIER - | "package" {$$="package";} + | "package" {PASS12 $$="package";} + +PACKAGE: PACKAGE '.' X_IDENTIFIER {PASS12 $$ = concat3($1,".",$3);free($1);$1=0;} +PACKAGE: X_IDENTIFIER {PASS12 $$=strdup($1);} -PACKAGE: PACKAGE '.' X_IDENTIFIER {$$ = concat3str($1,".",$3);} -PACKAGE: X_IDENTIFIER {$$=$1;} +PACKAGE_DECLARATION : "package" PACKAGE '{' {PASS12 startpackage($2);free($2);$2=0;} + MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;} +PACKAGE_DECLARATION : "package" '{' {PASS12 startpackage("");} + MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;} -PACKAGE_DECLARATION : "package" PACKAGE '{' {startpackage($2)} MAYBECODE '}' {endpackage()} -PACKAGE_DECLARATION : "package" '{' {startpackage("")} MAYBECODE '}' {endpackage()} +IMPORT : "import" PACKAGEANDCLASS { + PASS12 + slotinfo_t*s = registry_find($2->package, $2->name); + if(!s) {// || !(s->flags&FLAG_BUILTIN)) { + as3_schedule_class($2->package, $2->name); + } -IMPORT : "import" QNAME { + PASS2 classinfo_t*c = $2; if(!c) syntaxerror("Couldn't import class\n"); @@ -1307,6 +2375,12 @@ IMPORT : "import" QNAME { $$=0; } IMPORT : "import" PACKAGE '.' '*' { + PASS12 + if(strncmp("flash.", $2, 6)) { + as3_schedule_package($2); + } + + PASS2 NEW(import_t,i); i->package = $2; state_has_imports(); @@ -1316,114 +2390,152 @@ IMPORT : "import" PACKAGE '.' '*' { /* ------------ classes and interfaces (header) -------------- */ -MAYBE_MODIFIERS : {$$=0;} -MAYBE_MODIFIERS : MODIFIER_LIST {$$=$1} -MODIFIER_LIST : MODIFIER {$$=$1;} -MODIFIER_LIST : MODIFIER_LIST MODIFIER {$$=$1|$2;} - -MODIFIER : KW_PUBLIC {$$=FLAG_PUBLIC;} - | KW_PRIVATE {$$=FLAG_PRIVATE;} - | KW_PROTECTED {$$=FLAG_PROTECTED;} - | KW_STATIC {$$=FLAG_STATIC;} - | KW_DYNAMIC {$$=FLAG_DYNAMIC;} - | KW_FINAL {$$=FLAG_FINAL;} - | KW_OVERRIDE {$$=FLAG_OVERRIDE;} - | KW_NATIVE {$$=FLAG_NATIVE;} - | KW_INTERNAL {$$=FLAG_INTERNAL;} +MAYBE_MODIFIERS : %prec above_function {PASS12 $$=0;} +MAYBE_MODIFIERS : MODIFIER_LIST {PASS12 $$=$1;} +MODIFIER_LIST : MODIFIER {PASS12 $$=$1;} +MODIFIER_LIST : MODIFIER_LIST MODIFIER {PASS12 $$=$1|$2;} + +MODIFIER : KW_PUBLIC {PASS12 $$=FLAG_PUBLIC;} + | KW_PRIVATE {PASS12 $$=FLAG_PRIVATE;} + | KW_PROTECTED {PASS12 $$=FLAG_PROTECTED;} + | KW_STATIC {PASS12 $$=FLAG_STATIC;} + | KW_DYNAMIC {PASS12 $$=FLAG_DYNAMIC;} + | KW_FINAL {PASS12 $$=FLAG_FINAL;} + | KW_OVERRIDE {PASS12 $$=FLAG_OVERRIDE;} + | KW_NATIVE {PASS12 $$=FLAG_NATIVE;} + | KW_INTERNAL {PASS12 $$=FLAG_PACKAGEINTERNAL;} + | T_NAMESPACE {PASS12 $$=FLAG_NAMESPACE;} EXTENDS : {$$=registry_getobjectclass();} -EXTENDS : KW_EXTENDS QNAME {$$=$2;} +EXTENDS : KW_EXTENDS CLASS_SPEC {$$=$2;} -EXTENDS_LIST : {$$=list_new();} -EXTENDS_LIST : KW_EXTENDS QNAME_LIST {$$=$2;} +EXTENDS_LIST : {PASS12 $$=list_new();} +EXTENDS_LIST : KW_EXTENDS CLASS_SPEC_LIST {PASS12 $$=$2;} -IMPLEMENTS_LIST : {$$=list_new();} -IMPLEMENTS_LIST : KW_IMPLEMENTS QNAME_LIST {$$=$2;} +IMPLEMENTS_LIST : {PASS12 $$=list_new();} +IMPLEMENTS_LIST : KW_IMPLEMENTS CLASS_SPEC_LIST {PASS12 $$=$2;} CLASS_DECLARATION : MAYBE_MODIFIERS "class" T_IDENTIFIER EXTENDS IMPLEMENTS_LIST - '{' {startclass($1,$3,$4,$5, 0);} - MAYBE_DECLARATION_LIST - '}' {endclass();} + '{' {PASS12 startclass($1,$3,$4,$5);} + MAYBE_CLASS_BODY + '}' {PASS12 endclass();$$=0;} INTERFACE_DECLARATION : MAYBE_MODIFIERS "interface" T_IDENTIFIER EXTENDS_LIST - '{' {startclass($1,$3,0,$4,1);} - MAYBE_IDECLARATION_LIST - '}' {endclass();} + '{' {PASS12 startclass($1|FLAG_INTERFACE,$3,0,$4);} + MAYBE_INTERFACE_BODY + '}' {PASS12 endclass();$$=0;} /* ------------ classes and interfaces (body) -------------- */ -MAYBE_DECLARATION_LIST : -MAYBE_DECLARATION_LIST : DECLARATION_LIST -DECLARATION_LIST : DECLARATION -DECLARATION_LIST : DECLARATION_LIST DECLARATION -DECLARATION : ';' -DECLARATION : SLOT_DECLARATION -DECLARATION : FUNCTION_DECLARATION - -MAYBE_IDECLARATION_LIST : -MAYBE_IDECLARATION_LIST : IDECLARATION_LIST -IDECLARATION_LIST : IDECLARATION -IDECLARATION_LIST : IDECLARATION_LIST IDECLARATION +MAYBE_CLASS_BODY : +MAYBE_CLASS_BODY : CLASS_BODY +CLASS_BODY : CLASS_BODY_ITEM +CLASS_BODY : CLASS_BODY CLASS_BODY_ITEM +CLASS_BODY_ITEM : ';' +CLASS_BODY_ITEM : CONDITIONAL_COMPILATION '{' MAYBE_CLASS_BODY '}' +CLASS_BODY_ITEM : SLOT_DECLARATION +CLASS_BODY_ITEM : FUNCTION_DECLARATION + +CLASS_BODY_ITEM : CODE_STATEMENT { + code_t*c = state->cls->static_init->header; + c = code_append(c, $1); + state->cls->static_init->header = c; +} + +MAYBE_INTERFACE_BODY : +MAYBE_INTERFACE_BODY : INTERFACE_BODY +INTERFACE_BODY : IDECLARATION +INTERFACE_BODY : INTERFACE_BODY IDECLARATION IDECLARATION : ';' IDECLARATION : "var" T_IDENTIFIER { syntaxerror("variable declarations not allowed in interfaces"); } IDECLARATION : MAYBE_MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')' MAYBETYPE { + PASS12 $1 |= FLAG_PUBLIC; - if($1&(FLAG_PRIVATE|FLAG_INTERNAL|FLAG_PROTECTED)) { + if($1&(FLAG_PRIVATE|FLAG_PACKAGEINTERNAL|FLAG_PROTECTED)) { syntaxerror("invalid method modifiers: interface methods always need to be public"); } startfunction(0,$1,$3,$4,&$6,$8); endfunction(0,$1,$3,$4,&$6,$8, 0); + list_deep_free($6.list); } /* ------------ classes and interfaces (body, slots ) ------- */ VARCONST: "var" | "const" -SLOT_DECLARATION: MAYBE_MODIFIERS VARCONST T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION { +SLOT_DECLARATION: MAYBE_MODIFIERS VARCONST T_IDENTIFIER {setstaticfunction($1);} MAYBETYPE MAYBEEXPRESSION { int flags = $1; - memberinfo_t* info = memberinfo_register(state->cls->info, $3, MEMBER_SLOT); - info->type = $4; - info->flags = flags; - trait_t*t=0; - - namespace_t mname_ns = {flags2access(flags), ""}; - multiname_t mname = {QNAME, &mname_ns, 0, $3}; + U8 access = flags2access($1); - if(!(flags&FLAG_STATIC)) { - if($4) { - MULTINAME(m, $4); - t=abc_class_slot(state->cls->abc, &mname, &m); - } else { - t=abc_class_slot(state->cls->abc, &mname, 0); + varinfo_t* info = 0; + if(state->cls) { + memberinfo_t*i = registry_findmember(state->cls->info, $3, 1); + if(i) { + check_override(i, flags); } - info->slot = t->slot_id; + info = varinfo_register_onclass(state->cls->info, access, $3); } else { - if($4) { - MULTINAME(m, $4); - t=abc_class_staticslot(state->cls->abc, &mname, &m); - } else { - t=abc_class_staticslot(state->cls->abc, &mname, 0); + slotinfo_t*i = registry_find(state->package, $3); + if(i) { + syntaxerror("package %s already contains '%s'", state->package, $3); } - info->slot = t->slot_id; + info = varinfo_register_global(access, state->package, $3); + } + + info->type = $5; + info->flags = flags; + + /* slot name */ + namespace_t mname_ns = {access, ""}; + multiname_t mname = {QNAME, &mname_ns, 0, $3}; + + trait_list_t**traits; + code_t**code; + if(!state->cls) { + // global variable + mname_ns.name = state->package; + traits = &global->init->traits; + code = &global->init->method->body->code; + } else if(flags&FLAG_STATIC) { + // static variable + traits = &state->cls->abc->static_traits; + code = &state->cls->static_init->header; + } else { + // instance variable + traits = &state->cls->abc->traits; + code = &state->cls->init->header; + } + + trait_t*t=0; + if($5) { + MULTINAME(m, $5); + t = trait_new_member(traits, multiname_clone(&m), multiname_clone(&mname), 0); + } else { + t = trait_new_member(traits, 0, multiname_clone(&mname), 0); } - if($5.c && !is_pushundefined($5.c)) { - code_t*c = 0; + info->slot = t->slot_id; + + /* initalization code (if needed) */ + code_t*c = 0; + if($6.c && !is_pushundefined($6.c)) { c = abc_getlocal_0(c); - c = code_append(c, $5.c); - c = converttype(c, $5.t, $4); + c = code_append(c, $6.c); + c = converttype(c, $6.t, $5); c = abc_setslot(c, t->slot_id); - if(!(flags&FLAG_STATIC)) - state->cls->init = code_append(state->cls->init, c); - else - state->cls->static_init = code_append(state->cls->static_init, c); } + + *code = code_append(*code, c); + if($2==KW_CONST) { t->kind= TRAIT_CONST; } + + $$=0; + setstaticfunction(0); } /* ------------ constants -------------------------------------- */ @@ -1435,29 +2547,38 @@ STATICCONSTANT : T_BYTE {$$ = constant_new_int($1);} STATICCONSTANT : T_INT {$$ = constant_new_int($1);} STATICCONSTANT : T_UINT {$$ = constant_new_uint($1);} STATICCONSTANT : T_FLOAT {$$ = constant_new_float($1);} -STATICCONSTANT : T_STRING {$$ = constant_new_string2($1.str,$1.len);} +STATICCONSTANT : T_STRING {$$ = constant_new_string2($1.str,$1.len);free((char*)$1.str);} //STATICCONSTANT : T_NAMESPACE {$$ = constant_new_namespace($1);} STATICCONSTANT : "true" {$$ = constant_new_true($1);} STATICCONSTANT : "false" {$$ = constant_new_false($1);} STATICCONSTANT : "null" {$$ = constant_new_null($1);} +STATICCONSTANT : T_IDENTIFIER { + // TODO + as3_warning("Couldn't resolve %s", $1); + $$ = constant_new_null($1); +} /* ------------ classes and interfaces (body, functions) ------- */ // non-vararg version MAYBE_PARAM_LIST: { + PASS12 memset(&$$,0,sizeof($$)); } MAYBE_PARAM_LIST: PARAM_LIST { + PASS12 $$=$1; } // vararg version MAYBE_PARAM_LIST: "..." PARAM { + PASS12 memset(&$$,0,sizeof($$)); $$.varargs=1; list_append($$.list, $2); } MAYBE_PARAM_LIST: PARAM_LIST ',' "..." PARAM { + PASS12 $$ =$1; $$.varargs=1; list_append($$.list, $4); @@ -1465,77 +2586,109 @@ MAYBE_PARAM_LIST: PARAM_LIST ',' "..." PARAM { // non empty PARAM_LIST: PARAM_LIST ',' PARAM { + PASS12 $$ = $1; list_append($$.list, $3); } PARAM_LIST: PARAM { + PASS12 memset(&$$,0,sizeof($$)); list_append($$.list, $1); } PARAM: T_IDENTIFIER ':' TYPE MAYBESTATICCONSTANT { - $$ = malloc(sizeof(param_t)); + PASS12 + $$ = rfx_calloc(sizeof(param_t)); $$->name=$1; $$->type = $3; + PASS2 $$->value = $4; } PARAM: T_IDENTIFIER MAYBESTATICCONSTANT { - $$ = malloc(sizeof(param_t)); + PASS12 + $$ = rfx_calloc(sizeof(param_t)); $$->name=$1; $$->type = TYPE_ANY; + PASS2 $$->value = $2; } -GETSET : "get" {$$=$1;} - | "set" {$$=$1;} - | {$$=0;} +GETSET : "get" + | "set" + | {PASS12 $$=0;} FUNCTION_DECLARATION: MAYBE_MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')' - MAYBETYPE '{' {startfunction(0,$1,$3,$4,&$6,$8)} MAYBECODE '}' + MAYBETYPE '{' {PASS12 startfunction(0,$1,$3,$4,&$6,$8);} MAYBECODE '}' { - code_t*c = 0; - if(state->method->late_binding) { - c = abc_getlocal_0(c); - c = abc_pushscope(c); - } - if(state->method->is_constructor && !state->method->has_super) { - // generate default constructor - c = abc_getlocal_0(c); - c = abc_constructsuper(c, 0); - } - - c = code_append(c, state->method->initcode); - c = code_append(c, $11); + PASS1 + endfunction(0,$1,$3,$4,&$6,0,0); + PASS2 + if(!state->method->info) syntaxerror("internal error"); + + code_t*c = method_header(state->method); + c = wrap_function(c, 0, $11); - /* append return if necessary */ - if(!c || c->opcode != OPCODE_RETURNVOID && - c->opcode != OPCODE_RETURNVALUE) { - c = abc_returnvoid(c); - } endfunction(0,$1,$3,$4,&$6,$8,c); + PASS12 + list_deep_free($6.list); + $$=0; +} + +MAYBE_IDENTIFIER: T_IDENTIFIER +MAYBE_IDENTIFIER: {PASS12 $$=0;} +INNERFUNCTION: "function" MAYBE_IDENTIFIER '(' MAYBE_PARAM_LIST ')' MAYBETYPE + '{' {PASS12 innerfunction($2,&$4,$6);} MAYBECODE '}' +{ + PASS1 + endfunction(0,0,0,$2,&$4,0,0); + PASS2 + methodinfo_t*f = state->method->info; + if(!f || !f->kind) syntaxerror("internal error"); + + code_t*c = method_header(state->method); + c = wrap_function(c, 0, $9); + + int index = state->method->var_index; + endfunction(0,0,0,$2,&$4,$6,c); + + $$.c = abc_getlocal(0, index); + $$.t = TYPE_FUNCTION(f); + + PASS12 list_deep_free($4.list); } + /* ------------- package + class ids --------------- */ CLASS: T_IDENTIFIER { - - /* try current package */ - $$ = find_class($1); - if(!$$) syntaxerror("Could not find class %s\n", $1); + PASS1 $$=0; + PASS2 + slotinfo_t*s = find_class($1); + if(!s) syntaxerror("Could not find class/method %s (current package: %s)\n", $1, state->package); + $$ = (classinfo_t*)s; } PACKAGEANDCLASS : PACKAGE '.' T_IDENTIFIER { - $$ = registry_findclass($1, $3); - if(!$$) syntaxerror("Couldn't find class %s.%s\n", $1, $3); + PASS1 static classinfo_t c; + memset(&c, 0, sizeof(c)); + c.package = $1; + c.name = $3; + $$=&c; + PASS2 + slotinfo_t*s = registry_find($1, $3); + if(!s) syntaxerror("Couldn't find class/method %s.%s\n", $1, $3); + free($1);$1=0; + $$ = (classinfo_t*)s; } -QNAME: PACKAGEANDCLASS - | CLASS +CLASS_SPEC: PACKAGEANDCLASS + | CLASS -QNAME_LIST : QNAME {$$=list_new();list_append($$, $1);} -QNAME_LIST : QNAME_LIST ',' QNAME {$$=$1;list_append($$,$3);} +CLASS_SPEC_LIST : CLASS_SPEC {PASS12 $$=list_new();list_append($$, $1);} +CLASS_SPEC_LIST : CLASS_SPEC_LIST ',' CLASS_SPEC {PASS12 $$=$1;list_append($$,$3);} -TYPE : QNAME {$$=$1;} +TYPE : CLASS_SPEC {$$=$1;} | '*' {$$=registry_getanytype();} + | "void" {$$=registry_getanytype();} /* | "String" {$$=registry_getstringclass();} | "int" {$$=registry_getintclass();} @@ -1549,43 +2702,54 @@ MAYBETYPE: {$$=0;} /* ----------function calls, delete, constructor calls ------ */ -MAYBE_PARAM_VALUES : %prec prec_none {$$=0;} -MAYBE_PARAM_VALUES : '(' MAYBE_EXPRESSION_LIST ')' {$$=$2} +MAYBE_PARAM_VALUES : %prec prec_none {$$.cc=0;$$.len=0;} +MAYBE_PARAM_VALUES : '(' MAYBE_EXPRESSION_LIST ')' {$$=$2;} -MAYBE_EXPRESSION_LIST : {$$=0;} +MAYBE_EXPRESSION_LIST : {$$.cc=0;$$.len=0;} MAYBE_EXPRESSION_LIST : EXPRESSION_LIST -EXPRESSION_LIST : NONCOMMAEXPRESSION {$$=list_new(); - typedcode_t*t = malloc(sizeof(typedcode_t)); - *t = $1; - list_append($$, t);} -EXPRESSION_LIST : EXPRESSION_LIST ',' NONCOMMAEXPRESSION {$$=$1; - typedcode_t*t = malloc(sizeof(typedcode_t)); - *t = $3; - list_append($$, t);} - -NEW : "new" CLASS MAYBE_PARAM_VALUES { - MULTINAME(m, $2); - $$.c = code_new(); +MAYBE_EXPRESSION_LIST : EXPRESSION_LIST_AND_COMMA - if($2->slot) { - $$.c = abc_getglobalscope($$.c); - $$.c = abc_getslot($$.c, $2->slot); +EXPRESSION_LIST : NONCOMMAEXPRESSION {$$.len=1; + $$.cc = $1.c; + } + +EXPRESSION_LIST_AND_COMMA: EXPRESSION_LIST ',' {$$ = $1;} +EXPRESSION_LIST : EXPRESSION_LIST_AND_COMMA NONCOMMAEXPRESSION { + $$.len= $1.len+1; + $$.cc = code_append($1.cc, $2.c); + } + +XX : %prec new2 +NEW : "new" E XX MAYBE_PARAM_VALUES { + $$.c = $2.c; + if($$.c->opcode == OPCODE_COERCE_A) $$.c = code_cutlast($$.c); + + code_t*paramcode = $4.cc; + if($$.c->opcode == OPCODE_GETPROPERTY) { + multiname_t*name = $$.c->data[0];$$.c->data[0]=0; + $$.c = code_cutlast($$.c); + $$.c = code_append($$.c, paramcode); + $$.c = abc_constructprop2($$.c, name, $4.len); + multiname_destroy(name); + } else if($$.c->opcode == OPCODE_GETSLOT) { + int slot = (int)(ptroff_t)$$.c->data[0]; + trait_t*t = traits_find_slotid(state->cls->abc->traits,slot);//FIXME + multiname_t*name = t->name; + $$.c = code_cutlast($$.c); + $$.c = code_append($$.c, paramcode); + $$.c = abc_constructprop2($$.c, name, $4.len); } else { - $$.c = abc_findpropstrict2($$.c, &m); + $$.c = code_append($$.c, paramcode); + $$.c = abc_construct($$.c, $4.len); } - - typedcode_list_t*l = $3; - int len = 0; - while(l) { - $$.c = code_append($$.c, l->typedcode->c); // push parameters on stack - l = l->next; - len ++; + + $$.t = TYPE_ANY; + if(TYPE_IS_CLASS($2.t) && $2.t->data) { + $$.t = $2.t->data; + } else { + $$.c = abc_coerce_a($$.c); + $$.t = TYPE_ANY; } - if($2->slot) - $$.c = abc_construct($$.c, len); - else - $$.c = abc_constructprop2($$.c, &m, len); - $$.t = $2; } /* TODO: use abc_call (for calling local variables), @@ -1593,59 +2757,51 @@ NEW : "new" CLASS MAYBE_PARAM_VALUES { call (for closures) */ FUNCTIONCALL : E '(' MAYBE_EXPRESSION_LIST ')' { - typedcode_list_t*l = $3; - int len = 0; - code_t*paramcode = 0; - while(l) { - paramcode = code_append(paramcode, l->typedcode->c); // push parameters on stack - l = l->next; - len ++; - } - + $$.c = $1.c; if($$.c->opcode == OPCODE_COERCE_A) { $$.c = code_cutlast($$.c); } + code_t*paramcode = $3.cc; $$.t = TYPE_ANY; - multiname_t*name = 0; if($$.c->opcode == OPCODE_GETPROPERTY) { - name = multiname_clone($$.c->data[0]); + multiname_t*name = $$.c->data[0];$$.c->data[0]=0; $$.c = code_cutlast($$.c); $$.c = code_append($$.c, paramcode); - $$.c = abc_callproperty2($$.c, name, len); - } else if($$.c->opcode == OPCODE_GETSLOT) { + $$.c = abc_callproperty2($$.c, name, $3.len); + multiname_destroy(name); + } else if($$.c->opcode == OPCODE_GETSLOT && $$.c->prev->opcode != OPCODE_GETSCOPEOBJECT) { int slot = (int)(ptroff_t)$$.c->data[0]; - trait_t*t = abc_class_find_slotid(state->cls->abc,slot);//FIXME + trait_t*t = traits_find_slotid(state->cls->abc->traits,slot); if(t->kind!=TRAIT_METHOD) { - //flash allows to assign closures to members. - //syntaxerror("not a function"); + //ok: flash allows to assign closures to members. } - name = t->name; + multiname_t*name = t->name; $$.c = code_cutlast($$.c); $$.c = code_append($$.c, paramcode); //$$.c = abc_callmethod($$.c, t->method, len); //#1051 illegal early access binding - $$.c = abc_callproperty2($$.c, name, len); + $$.c = abc_callproperty2($$.c, name, $3.len); } else if($$.c->opcode == OPCODE_GETSUPER) { - name = multiname_clone($$.c->data[0]); + multiname_t*name = $$.c->data[0];$$.c->data[0]=0; $$.c = code_cutlast($$.c); $$.c = code_append($$.c, paramcode); - $$.c = abc_callsuper2($$.c, name, len); + $$.c = abc_callsuper2($$.c, name, $3.len); + multiname_destroy(name); } else { - $$.c = abc_getlocal_0($$.c); + $$.c = abc_getglobalscope($$.c); $$.c = code_append($$.c, paramcode); - $$.c = abc_call($$.c, len); + $$.c = abc_call($$.c, $3.len); } - memberinfo_t*f = 0; - - if(TYPE_IS_FUNCTION($1.t) && $1.t->function) { - $$.t = $1.t->function->return_type; + if(TYPE_IS_FUNCTION($1.t) && $1.t->data) { + $$.t = ((methodinfo_t*)($1.t->data))->return_type; } else { $$.c = abc_coerce_a($$.c); $$.t = TYPE_ANY; } } + FUNCTIONCALL : "super" '(' MAYBE_EXPRESSION_LIST ')' { if(!state->cls) syntaxerror("super() not allowed outside of a class"); if(!state->method) syntaxerror("super() not allowed outside of a function"); @@ -1653,13 +2809,16 @@ FUNCTIONCALL : "super" '(' MAYBE_EXPRESSION_LIST ')' { $$.c = code_new(); $$.c = abc_getlocal_0($$.c); - typedcode_list_t*l = 0; - int len = 0; - for(l=$3;l;l=l->next) { - $$.c = code_append($$.c, l->typedcode->c);len++; - } + + $$.c = code_append($$.c, $3.cc); + /* + this is dependent on the control path, check this somewhere else + if(state->method->has_super) + syntaxerror("constructor may call super() only once"); + */ state->method->has_super = 1; - $$.c = abc_constructsuper($$.c, len); + + $$.c = abc_constructsuper($$.c, $3.len); $$.c = abc_pushundefined($$.c); $$.t = TYPE_ANY; } @@ -1674,7 +2833,7 @@ DELETE: "delete" E { $$.c->opcode = OPCODE_DELETEPROPERTY; } else if($$.c->opcode == OPCODE_GETSLOT) { int slot = (int)(ptroff_t)$$.c->data[0]; - multiname_t*name = abc_class_find_slotid(state->cls->abc,slot)->name; + multiname_t*name = traits_find_slotid(state->cls->abc->traits,slot)->name; $$.c = code_cutlast($$.c); $$.c = abc_deleteproperty2($$.c, name); } else { @@ -1709,13 +2868,34 @@ VOIDEXPRESSION : EXPRESSION %prec below_minus { // ----------------------- expression evaluation ------------------------------------- +E : INNERFUNCTION %prec prec_none {$$ = $1;} +//V : CONSTANT {$$ = 0;} E : CONSTANT +//V : VAR_READ %prec T_IDENTIFIER {$$ = 0;} E : VAR_READ %prec T_IDENTIFIER {$$ = $1;} +//V : NEW {$$ = $1.c;} E : NEW {$$ = $1;} +//V : DELETE {$$ = $1.c;} E : DELETE {$$ = $1;} -E : T_REGEXP {$$.c = abc_pushundefined(0); /* FIXME */ - $$.t = TYPE_ANY; - } + +E : FUNCTIONCALL + +E : T_REGEXP { + $$.c = 0; + namespace_t ns = {ACCESS_PACKAGE, ""}; + multiname_t m = {QNAME, &ns, 0, "RegExp"}; + if(!$1.options) { + $$.c = abc_getlex2($$.c, &m); + $$.c = abc_pushstring($$.c, $1.pattern); + $$.c = abc_construct($$.c, 1); + } else { + $$.c = abc_getlex2($$.c, &m); + $$.c = abc_pushstring($$.c, $1.pattern); + $$.c = abc_pushstring($$.c, $1.options); + $$.c = abc_construct($$.c, 2); + } + $$.t = TYPE_REGEXP; +} CONSTANT : T_BYTE {$$.c = abc_pushbyte(0, $1); //MULTINAME(m, registry_getintclass()); @@ -1734,7 +2914,7 @@ CONSTANT : T_UINT {$$.c = abc_pushuint(0, $1); CONSTANT : T_FLOAT {$$.c = abc_pushdouble(0, $1); $$.t = TYPE_FLOAT; } -CONSTANT : T_STRING {$$.c = abc_pushstring2(0, &$1); +CONSTANT : T_STRING {$$.c = abc_pushstring2(0, &$1);free((char*)$1.str); $$.t = TYPE_STRING; } CONSTANT : "undefined" {$$.c = abc_pushundefined(0); @@ -1750,7 +2930,6 @@ CONSTANT : "null" {$$.c = abc_pushnull(0); $$.t = TYPE_NULL; } -E : FUNCTIONCALL E : E '<' E {$$.c = code_append($1.c,$3.c);$$.c = abc_greaterequals($$.c);$$.c=abc_not($$.c); $$.t = TYPE_BOOLEAN; } @@ -1830,15 +3009,6 @@ E : E '|' E {$$.c = code_append($1.c,$3.c); $$.t = TYPE_INT; } -E : E '-' E {$$.c = code_append($1.c,$3.c); - if(BOTH_INT($1,$3)) { - $$.c = abc_subtract_i($$.c); - $$.t = TYPE_INT; - } else { - $$.c = abc_subtract($$.c); - $$.t = TYPE_NUMBER; - } - } E : E ">>" E {$$.c = code_append($1.c,$3.c); $$.c = abc_rshift($$.c); $$.t = TYPE_INT; @@ -1856,16 +3026,30 @@ E : E '/' E {$$.c = code_append($1.c,$3.c); $$.c = abc_divide($$.c); $$.t = TYPE_NUMBER; } -E : E '+' E {$$.c = code_append($1.c,$3.c); - $$.c = abc_add($$.c); - $$.t = TYPE_NUMBER; - } E : E '%' E {$$.c = code_append($1.c,$3.c); $$.c = abc_modulo($$.c); $$.t = TYPE_NUMBER; } +E : E '+' E {$$.c = code_append($1.c,$3.c); + if(BOTH_INT($1.t, $3.t)) { + $$.c = abc_add_i($$.c); + $$.t = TYPE_INT; + } else { + $$.c = abc_add($$.c); + $$.t = join_types($1.t,$3.t,'+'); + } + } +E : E '-' E {$$.c = code_append($1.c,$3.c); + if(BOTH_INT($1.t,$3.t)) { + $$.c = abc_subtract_i($$.c); + $$.t = TYPE_INT; + } else { + $$.c = abc_subtract($$.c); + $$.t = TYPE_NUMBER; + } + } E : E '*' E {$$.c = code_append($1.c,$3.c); - if(BOTH_INT($1,$3)) { + if(BOTH_INT($1.t,$3.t)) { $$.c = abc_multiply_i($$.c); $$.t = TYPE_INT; } else { @@ -1874,11 +3058,16 @@ E : E '*' E {$$.c = code_append($1.c,$3.c); } } +E : E "in" E {$$.c = code_append($1.c,$3.c); + $$.c = abc_in($$.c); + $$.t = TYPE_BOOLEAN; + } + E : E "as" E {char use_astype=0; // flash player's astype works differently than astypelate - if(use_astype && TYPE_IS_CLASS($3.t)) { - MULTINAME(m,$3.t->cls); + if(use_astype && TYPE_IS_CLASS($3.t) && $3.t->data) { + MULTINAME(m, (classinfo_t*)($3.t->data)); $$.c = abc_astype2($1.c, &m); - $$.t = $3.t->cls; + $$.t = $3.t->data; } else { $$.c = code_append($1.c, $3.c); $$.c = abc_astypelate($$.c); @@ -1886,6 +3075,12 @@ E : E "as" E {char use_astype=0; // flash player's astype works differently than } } +E : E "instanceof" E + {$$.c = code_append($1.c, $3.c); + $$.c = abc_instanceof($$.c); + $$.t = TYPE_BOOLEAN; + } + E : E "is" E {$$.c = code_append($1.c, $3.c); $$.c = abc_istypelate($$.c); $$.t = TYPE_BOOLEAN; @@ -1911,7 +3106,7 @@ E : '(' EXPRESSION ')' {$$=$2;} //allow commas in here, too E : '-' E { $$=$2; - if(IS_INT($2)) { + if(IS_INT($2.t)) { $$.c=abc_negate_i($$.c); $$.t = TYPE_INT; } else { @@ -1923,15 +3118,47 @@ E : '-' E { E : E '[' E ']' { $$.c = $1.c; $$.c = code_append($$.c, $3.c); - + MULTINAME_LATE(m, $1.t?$1.t->access:ACCESS_PACKAGE, ""); $$.c = abc_getproperty2($$.c, &m); $$.t = 0; // array elements have unknown type } +E : '[' MAYBE_EXPRESSION_LIST ']' { + $$.c = code_new(); + $$.c = code_append($$.c, $2.cc); + $$.c = abc_newarray($$.c, $2.len); + $$.t = registry_getarrayclass(); +} + +MAYBE_EXPRPAIR_LIST : {$$.cc=0;$$.len=0;} +MAYBE_EXPRPAIR_LIST : EXPRPAIR_LIST {$$=$1;} + +EXPRPAIR_LIST : NONCOMMAEXPRESSION ':' NONCOMMAEXPRESSION { + $$.cc = 0; + $$.cc = code_append($$.cc, $1.c); + $$.cc = code_append($$.cc, $3.c); + $$.len = 2; +} +EXPRPAIR_LIST : EXPRPAIR_LIST ',' NONCOMMAEXPRESSION ':' NONCOMMAEXPRESSION { + $$.cc = $1.cc; + $$.len = $1.len+2; + $$.cc = code_append($$.cc, $3.c); + $$.cc = code_append($$.cc, $5.c); +} +//MAYBECOMMA: ',' +//MAYBECOMMA: + +E : "{ (dictionary)" MAYBE_EXPRPAIR_LIST '}' { + $$.c = code_new(); + $$.c = code_append($$.c, $2.cc); + $$.c = abc_newobject($$.c, $2.len/2); + $$.t = registry_getobjectclass(); +} + E : E "*=" E { code_t*c = $3.c; - if(BOTH_INT($1,$3)) { + if(BOTH_INT($1.t,$3.t)) { c=abc_multiply_i(c); } else { c=abc_multiply(c); @@ -1971,25 +3198,38 @@ E : E "/=" E { $$.c = toreadwrite($1.c, c, 0, 0); $$.t = $1.t; } +E : E "|=" E { + code_t*c = abc_bitor($3.c); + c=converttype(c, TYPE_INT, $1.t); + $$.c = toreadwrite($1.c, c, 0, 0); + $$.t = $1.t; + } +E : E "^=" E { + code_t*c = abc_bitxor($3.c); + c=converttype(c, TYPE_INT, $1.t); + $$.c = toreadwrite($1.c, c, 0, 0); + $$.t = $1.t; + } E : E "+=" E { code_t*c = $3.c; - if(TYPE_IS_INT($3.t) || TYPE_IS_UINT($3.t)) { + + if(TYPE_IS_INT($1.t)) { c=abc_add_i(c); } else { c=abc_add(c); + c=converttype(c, join_types($1.t, $3.t, '+'), $1.t); } - c=converttype(c, join_types($1.t, $3.t, '+'), $1.t); $$.c = toreadwrite($1.c, c, 0, 0); $$.t = $1.t; } E : E "-=" E { code_t*c = $3.c; - if(TYPE_IS_INT($3.t) || TYPE_IS_UINT($3.t)) { + if(TYPE_IS_INT($1.t)) { c=abc_subtract_i(c); } else { c=abc_subtract(c); + c=converttype(c, join_types($1.t, $3.t, '-'), $1.t); } - c=converttype(c, join_types($1.t, $3.t, '-'), $1.t); $$.c = toreadwrite($1.c, c, 0, 0); $$.t = $1.t; @@ -2002,30 +3242,45 @@ E : E '=' E { code_t*c = 0; } E : E '?' E ':' E %prec below_assignment { + $$.t = join_types($3.t,$5.t,'?'); $$.c = $1.c; code_t*j1 = $$.c = abc_iffalse($$.c, 0); $$.c = code_append($$.c, $3.c); + $$.c = converttype($$.c, $3.t, $$.t); code_t*j2 = $$.c = abc_jump($$.c, 0); $$.c = j1->branch = abc_label($$.c); $$.c = code_append($$.c, $5.c); + $$.c = converttype($$.c, $3.t, $$.t); $$.c = j2->branch = abc_label($$.c); - $$.t = join_types($3.t,$5.t,'?'); } -// TODO: use inclocal where appropriate E : E "++" { code_t*c = 0; classinfo_t*type = $1.t; - if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) { - c=abc_increment_i(c); - type = TYPE_INT; + if((is_getlocal($1.c) && TYPE_IS_INT($1.t)) || TYPE_IS_NUMBER($1.t)) { + int nr = getlocalnr($1.c); + code_free($1.c);$1.c=0; + if(TYPE_IS_INT($1.t)) { + $$.c = abc_getlocal(0, nr); + $$.c = abc_inclocal_i($$.c, nr); + } else if(TYPE_IS_NUMBER($1.t)) { + $$.c = abc_getlocal(0, nr); + $$.c = abc_inclocal($$.c, nr); + } else syntaxerror("internal error"); } else { - c=abc_increment(c); - type = TYPE_NUMBER; + if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) { + c=abc_increment_i(c); + type = TYPE_INT; + } else { + c=abc_increment(c); + type = TYPE_NUMBER; + } + c=converttype(c, type, $1.t); + $$.c = toreadwrite($1.c, c, 0, 1); + $$.t = $1.t; } - c=converttype(c, type, $1.t); - $$.c = toreadwrite($1.c, c, 0, 1); - $$.t = $1.t; } + +// TODO: use inclocal, like with ++ E : E "--" { code_t*c = 0; classinfo_t*type = $1.t; if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) { @@ -2074,36 +3329,75 @@ E : "super" '.' T_IDENTIFIER classinfo_t*t = state->cls->info->superclass; if(!t) t = TYPE_OBJECT; - memberinfo_t*f = registry_findmember(t, $3); - namespace_t ns = {flags2access(f->flags), ""}; - MEMBER_MULTINAME(m, f); + memberinfo_t*f = registry_findmember(t, $3, 1); + namespace_t ns = {f->access, ""}; + MEMBER_MULTINAME(m, f, $3); $$.c = 0; $$.c = abc_getlocal_0($$.c); $$.c = abc_getsuper2($$.c, &m); - $$.t = memberinfo_gettype(f); + $$.t = slotinfo_gettype((slotinfo_t*)f); + } + +E : '@' T_IDENTIFIER { + // attribute TODO + $$.c = abc_pushundefined(0); + $$.t = 0; + as3_warning("ignored @ operator"); + } + +E : E '.' '@' T_IDENTIFIER { + // child attribute TODO + $$.c = abc_pushundefined(0); + $$.t = 0; + as3_warning("ignored .@ operator"); } +E : E '.' T_IDENTIFIER "::" T_IDENTIFIER { + // namespace declaration TODO + $$.c = abc_pushundefined(0); + $$.t = 0; + as3_warning("ignored :: operator"); + } + +E : E ".." T_IDENTIFIER { + // descendants TODO + $$.c = abc_pushundefined(0); + $$.t = 0; + as3_warning("ignored .. operator"); + } + +E : E '.' '(' E ')' { + // filter TODO + $$.c = abc_pushundefined(0); + $$.t = 0; + as3_warning("ignored .() operator"); + } + +//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression + + + E : E '.' T_IDENTIFIER {$$.c = $1.c; classinfo_t*t = $1.t; char is_static = 0; - if(TYPE_IS_CLASS(t) && t->cls) { - t = t->cls; + if(TYPE_IS_CLASS(t) && t->data) { + t = t->data; is_static = 1; } if(t) { - memberinfo_t*f = registry_findmember(t, $3); + memberinfo_t*f = registry_findmember(t, $3, 1); char noslot = 0; if(f && !is_static != !(f->flags&FLAG_STATIC)) noslot=1; if(f && f->slot && !noslot) { $$.c = abc_getslot($$.c, f->slot); } else { - MEMBER_MULTINAME(m, f); + MEMBER_MULTINAME(m, f, $3); $$.c = abc_getproperty2($$.c, &m); } /* determine type */ - $$.t = memberinfo_gettype(f); + $$.t = slotinfo_gettype((slotinfo_t*)f); if(!$$.t) $$.c = abc_coerce_a($$.c); } else { @@ -2118,63 +3412,114 @@ E : E '.' T_IDENTIFIER } VAR_READ : T_IDENTIFIER { + PASS1 + /* Queue unresolved identifiers for checking against the parent + function's variables. + We consider everything which is not a local variable "unresolved". + This encompasses class names, members of the surrounding class + etc. which *correct* because local variables of the parent function + would shadow those. + */ + if(state->method->inner && !find_variable(state, $1)) { + unknown_variable($1); + } + PASS2 + $$.t = 0; $$.c = 0; - int i; - classinfo_t*a = 0; + slotinfo_t*a = 0; memberinfo_t*f = 0; + variable_t*v; /* look at variables */ - if((i = find_variable($1, &$$.t)) >= 0) { + if((v = find_variable(state, $1))) { // $1 is a local variable - $$.c = abc_getlocal($$.c, i); + $$.c = abc_getlocal($$.c, v->index); + $$.t = v->type; + break; + } + if((v = find_slot(state, $1))) { + $$.c = abc_getscopeobject($$.c, 1); + $$.c = abc_getslot($$.c, v->index); + $$.t = v->type; + break; + } + + int i_am_static = (state->method && state->method->info)?(state->method->info->flags&FLAG_STATIC):FLAG_STATIC; /* look at current class' members */ - } else if((f = registry_findmember(state->cls->info, $1))) { + if(state->cls && (f = registry_findmember(state->cls->info, $1, 1)) && + (f->flags&FLAG_STATIC) >= i_am_static) { // $1 is a function in this class int var_is_static = (f->flags&FLAG_STATIC); - int i_am_static = ((state->method && state->method->info)?(state->method->info->flags&FLAG_STATIC):FLAG_STATIC); - if(var_is_static != i_am_static) { - /* there doesn't seem to be any "static" way to access - static properties of a class */ + + if(f->kind == INFOTYPE_METHOD) { + $$.t = TYPE_FUNCTION(f); + } else { + $$.t = f->type; + } + if(var_is_static && !i_am_static) { + /* access to a static member from a non-static location. + do this via findpropstrict: + there doesn't seem to be any non-lookup way to access + static properties of a class */ state->method->late_binding = 1; $$.t = f->type; - namespace_t ns = {flags2access(f->flags), ""}; + namespace_t ns = {f->access, ""}; multiname_t m = {QNAME, &ns, 0, $1}; $$.c = abc_findpropstrict2($$.c, &m); $$.c = abc_getproperty2($$.c, &m); + break; + } else if(f->slot>0) { + $$.c = abc_getlocal_0($$.c); + $$.c = abc_getslot($$.c, f->slot); + break; } else { - if(f->slot>0) { - $$.c = abc_getlocal_0($$.c); - $$.c = abc_getslot($$.c, f->slot); - } else { - namespace_t ns = {flags2access(f->flags), ""}; - multiname_t m = {QNAME, &ns, 0, $1}; - $$.c = abc_getlocal_0($$.c); - $$.c = abc_getproperty2($$.c, &m); - } - } - if(f->kind == MEMBER_METHOD) { - $$.t = TYPE_FUNCTION(f); - } else { - $$.t = f->type; + namespace_t ns = {f->access, ""}; + multiname_t m = {QNAME, &ns, 0, $1}; + $$.c = abc_getlocal_0($$.c); + $$.c = abc_getproperty2($$.c, &m); + break; } + } - /* look at classes in the current package and imported classes */ - } else if((a = find_class($1))) { - if(a->slot) { - $$.c = abc_getglobalscope($$.c); - $$.c = abc_getslot($$.c, a->slot); - } else { + /* look at actual classes, in the current package and imported */ + if((a = find_class($1))) { + if(a->access == ACCESS_PACKAGEINTERNAL && + strcmp(a->package, state->package) && + strcmp(a->package, internal_filename_package) + ) + syntaxerror("Can't access internal %s %s in package '%s' from package '%s'", + infotypename(a),$1, a->package, state->package); + + if(a->kind != INFOTYPE_CLASS) { MULTINAME(m, a); - $$.c = abc_getlex2($$.c, &m); + $$.c = abc_findpropstrict2($$.c, &m); + $$.c = abc_getproperty2($$.c, &m); + if(a->kind == INFOTYPE_METHOD) { + methodinfo_t*f = (methodinfo_t*)a; + $$.t = TYPE_FUNCTION(f); + } else { + varinfo_t*v = (varinfo_t*)a; + $$.t = v->type; + } + } else { + classinfo_t*c = (classinfo_t*)a; + if(c->slot) { + $$.c = abc_getglobalscope($$.c); + $$.c = abc_getslot($$.c, c->slot); + } else { + MULTINAME(m, c); + $$.c = abc_getlex2($$.c, &m); + } + $$.t = TYPE_CLASS(c); } - $$.t = TYPE_CLASS(a); + break; + } /* unknown object, let the avm2 resolve it */ - } else { - if(strcmp($1,"trace")) - warning("Couldn't resolve '%s', doing late binding", $1); + if(1) { + as3_softwarning("Couldn't resolve '%s', doing late binding", $1); state->method->late_binding = 1; multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $1}; @@ -2185,16 +3530,15 @@ VAR_READ : T_IDENTIFIER { } } -//TODO: -//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants -//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration -//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression - // ----------------- namespaces ------------------------------------------------- -NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER {$$=$2;} -NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_IDENTIFIER {$$=$2;} -NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_STRING {$$=$2;} +NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER {$$=0;} +NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_IDENTIFIER {$$=0;} +NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_STRING {$$=0;} -USE_NAMESPACE : "use" "namespace" T_IDENTIFIER +USE_NAMESPACE : "use" "namespace" T_IDENTIFIER { + PASS12 + tokenizer_register_namespace($3); + $$=0; +}