#include "registry.h"
#include "code.h"
#include "opcodes.h"
+#include "compiler.h"
+
+extern int a3_lex();
%}
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<id> T_IDENTIFIER
+%token<id> T_IDENTIFIER T_NAMESPACE
%token<str> T_STRING
-%token<token> T_REGEXP
+%token<regexp> T_REGEXP
%token<token> T_EMPTY
%token<number_int> T_INT
%token<number_uint> T_UINT
%token<number_uint> T_SHORT
%token<number_float> T_FLOAT
-%token<token> KW_IMPLEMENTS
+%token<id> T_FOR "for"
+%token<id> T_WHILE "while"
+%token<id> T_DO "do"
+%token<id> T_SWITCH "switch"
+
+%token<token> KW_IMPLEMENTS "implements"
%token<token> KW_NAMESPACE "namespace"
%token<token> KW_PACKAGE "package"
-%token<token> KW_PROTECTED
-%token<token> KW_PUBLIC
-%token<token> KW_PRIVATE
+%token<token> KW_PROTECTED "protected"
+%token<token> KW_PUBLIC "public"
+%token<token> KW_PRIVATE "private"
%token<token> KW_USE "use"
-%token<token> KW_INTERNAL
+%token<token> KW_INTERNAL "internal"
%token<token> KW_NEW "new"
-%token<token> KW_NATIVE
+%token<token> KW_NATIVE "native"
%token<token> KW_FUNCTION "function"
+%token<token> KW_FINALLY "finally"
%token<token> KW_UNDEFINED "undefined"
-%token<token> KW_FOR "for"
+%token<token> KW_CONTINUE "continue"
%token<token> KW_CLASS "class"
%token<token> KW_CONST "const"
+%token<token> KW_CATCH "catch"
+%token<token> KW_CASE "case"
%token<token> KW_SET "set"
%token<token> KW_VOID "void"
-%token<token> KW_STATIC
+%token<token> KW_THROW "throw"
+%token<token> KW_STATIC "static"
+%token<token> KW_WITH "with"
+%token<token> KW_INSTANCEOF "instanceof"
%token<token> KW_IMPORT "import"
%token<token> KW_RETURN "return"
%token<token> KW_TYPEOF "typeof"
%token<token> KW_INTERFACE "interface"
%token<token> KW_NULL "null"
%token<token> KW_VAR "var"
-%token<token> KW_DYNAMIC
-%token<token> KW_OVERRIDE
-%token<token> KW_FINAL
+%token<token> KW_DYNAMIC "dynamic"
+%token<token> KW_OVERRIDE "override"
+%token<token> KW_FINAL "final"
+%token<token> KW_EACH "each"
%token<token> KW_GET "get"
-%token<token> KW_EXTENDS
+%token<token> KW_TRY "try"
+%token<token> KW_SUPER "super"
+%token<token> KW_EXTENDS "extends"
%token<token> KW_FALSE "false"
%token<token> KW_TRUE "true"
%token<token> KW_BOOLEAN "Boolean"
%token<token> KW_UINT "uint"
%token<token> KW_INT "int"
-%token<token> KW_WHILE "while"
%token<token> KW_NUMBER "Number"
%token<token> KW_STRING "String"
+%token<token> KW_DEFAULT "default"
%token<token> KW_DELETE "delete"
%token<token> KW_IF "if"
%token<token> KW_ELSE "else"
%token<token> KW_BREAK "break"
%token<token> KW_IS "is"
+%token<token> KW_IN "in"
%token<token> KW_AS "as"
+%token<token> T_DICTSTART "{ (dictionary)"
%token<token> T_EQEQ "=="
%token<token> T_EQEQEQ "==="
%token<token> T_NE "!="
%token<token> T_NEE "!=="
%token<token> T_LE "<="
%token<token> T_GE ">="
+%token<token> T_ORBY "|="
%token<token> T_DIVBY "/="
%token<token> T_MODBY "%="
%token<token> T_MULBY "*="
%token<token> T_PLUSBY "+="
%token<token> T_MINUSBY "-="
+%token<token> T_XORBY "^="
%token<token> T_SHRBY ">>="
%token<token> T_SHLBY "<<="
%token<token> T_USHRBY ">>>="
%token<token> T_USHR ">>>"
%token<token> T_SHR ">>"
-%type <id> X_IDENTIFIER PACKAGE
+%type <for_start> FOR_START
+%type <id> X_IDENTIFIER PACKAGE FOR_IN_INIT MAYBE_IDENTIFIER
%type <token> VARCONST
%type <code> CODE
-%type <code> CODEPIECE
-%type <code> CODEBLOCK MAYBECODE
-%type <token> PACKAGE_DECLARATION
-%type <token> FUNCTION_DECLARATION
-%type <code> VARIABLE_DECLARATION ONE_VARIABLE VARIABLE_LIST
-%type <token> CLASS_DECLARATION
-%type <token> NAMESPACE_DECLARATION
-%type <token> INTERFACE_DECLARATION
+%type <code> CODEPIECE CODE_STATEMENT
+%type <code> CODEBLOCK MAYBECODE MAYBE_CASE_LIST CASE_LIST DEFAULT CASE SWITCH WITH
+%type <code> PACKAGE_DECLARATION SLOT_DECLARATION
+%type <code> FUNCTION_DECLARATION PACKAGE_INITCODE
+%type <code> VARIABLE_DECLARATION ONE_VARIABLE VARIABLE_LIST THROW
+%type <exception> CATCH FINALLY
+%type <catch_list> CATCH_LIST CATCH_FINALLY_LIST
+%type <code> CLASS_DECLARATION
+%type <code> NAMESPACE_DECLARATION
+%type <code> INTERFACE_DECLARATION
%type <code> VOIDEXPRESSION
%type <value> EXPRESSION NONCOMMAEXPRESSION
%type <value> MAYBEEXPRESSION
%type <value> E DELETE
%type <value> CONSTANT
-%type <code> FOR IF WHILE MAYBEELSE BREAK RETURN
-%type <token> USE_NAMESPACE
+%type <code> FOR FOR_IN IF WHILE DO_WHILE MAYBEELSE BREAK RETURN CONTINUE TRY
+%type <value> INNERFUNCTION
+%type <code> USE_NAMESPACE
%type <code> FOR_INIT
-%type <token> IMPORT
+%type <code> IMPORT
%type <classinfo> MAYBETYPE
%type <token> GETSET
%type <param> PARAM
%type <classinfo_list> IMPLEMENTS_LIST
%type <classinfo> EXTENDS
%type <classinfo_list> EXTENDS_LIST
-%type <classinfo> CLASS PACKAGEANDCLASS QNAME
-%type <classinfo_list> QNAME_LIST
+%type <classinfo> CLASS PACKAGEANDCLASS CLASS_SPEC
+%type <classinfo_list> CLASS_SPEC_LIST
%type <classinfo> TYPE
-%type <token> VAR
//%type <token> VARIABLE
%type <value> VAR_READ
%type <value> NEW
//%type <token> T_IDENTIFIER
%type <token> MODIFIER
%type <value> FUNCTIONCALL
-%type <value_list> MAYBE_EXPRESSION_LIST EXPRESSION_LIST MAYBE_PARAM_VALUES
+%type <value_list> MAYBE_EXPRESSION_LIST EXPRESSION_LIST EXPRESSION_LIST_AND_COMMA MAYBE_PARAM_VALUES MAYBE_EXPRPAIR_LIST EXPRPAIR_LIST
// precedence: from low to high
%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
%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"
+%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);
DECLARE_LIST(import);
-typedef struct _state {
- abc_file_t*file;
- abc_script_t*init;
+DECLARE(methodstate);
+DECLARE_LIST(methodstate);
- int level;
+typedef struct _classstate {
+ /* class data */
+ classinfo_t*info;
+ abc_class_t*abc;
+
+ methodstate_t*init;
+ methodstate_t*static_init;
+ //code_t*init;
+ //code_t*static_init;
- char*package;
- char*function;
- /* code that needs to be executed at the start of
- a method (like initializing local registers) */
- code_t*initcode;
+ char has_constructor;
+} classstate_t;
+
+struct _methodstate {
+ /* method data */
+ methodinfo_t*info;
+ char late_binding;
+ char is_constructor;
+ char has_super;
+ 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;
-
- /* class data */
- classinfo_t*clsinfo;
- abc_class_t*cls;
- code_t*cls_init;
- code_t*cls_static_init;
-
- /* method data */
- memberinfo_t*minfo;
- abc_method_t*m;
+ char new_vars; // e.g. transition between two functions
+
+ classstate_t*cls;
+ methodstate_t*method;
+ char*exception_name;
+
dict_t*vars;
- char late_binding;
} state_t;
typedef struct _global {
- int variable_count;
+ abc_file_t*file;
+ abc_script_t*init;
+ dict_t*token2info;
+ dict_t*file2token2info;
} global_t;
static global_t*global = 0;
DECLARE_LIST(state);
-#define MULTINAME(m,x) multiname_t m;namespace_t m##_ns;registry_fill_multiname(&m, &m##_ns, x);
+#define MULTINAME(m,x) \
+ multiname_t m;\
+ namespace_t m##_ns;\
+ (x)->package; \
+ registry_fill_multiname(&m, &m##_ns, (slotinfo_t*)(x));
+
+#define MEMBER_MULTINAME(m,f,n) \
+ multiname_t m;\
+ namespace_t m##_ns;\
+ if(f) { \
+ m##_ns.access = ((slotinfo_t*)(f))->access; \
+ m##_ns.name = ""; \
+ m.type = QNAME; \
+ m.ns = &m##_ns; \
+ m.namespace_set = 0; \
+ m.name = ((slotinfo_t*)(f))->name; \
+ } else { \
+ m.type = MULTINAME; \
+ m.ns =0; \
+ m.namespace_set = &nopackage_namespace_set; \
+ m.name = n; \
+ }
/* warning: list length of namespace set is undefined */
#define MULTINAME_LATE(m, access, package) \
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->vars = dict_new();
- state->initcode = 0;
- state->has_own_imports = 0;
+ state->has_own_imports = 0;
+ state->vars = dict_new();
+ state->old = oldstate;
+ state->new_vars = 0;
}
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;t<state->vars->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->initcode) {
- printf("residual initcode\n");
- code_dump(state->initcode, 0, 0, "", stdout);
- }*/
- if(oldstate->has_own_imports) {
- list_free(oldstate->wildcard_imports);
- dict_destroy(oldstate->imports);oldstate->imports=0;
- }
- state->initcode = code_append(state->initcode, oldstate->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->file = abc_file_new();
- state->file->flags &= ~ABCFILE_LAZY;
+ state->package = internal_filename_package = strdup(filename);
- state->init = abc_initscript(state->file, 0);
- code_t*c = state->init->method->body->code;
-
- c = abc_getlocal_0(c);
- c = abc_pushscope(c);
+ 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->file2token2info = dict_new();
+ global->token2info = 0;
+}
+
+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
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;
- state->init->method->body->code = c;
+ dict_put(state->vars, name, v);
+
+ return v;
}
-void* finalize_state()
+static int new_variable(const char*name, classinfo_t*type, char init, char maybeslot)
{
- if(state->level!=1) {
- syntaxerror("unexpected end of file");
+ 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;t<state->vars->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;
+ }
}
- abc_method_body_t*m = state->init->method->body;
- //__ popscope(m);
+
+ 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;
+ }
+ }
+
+ 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);
+}
+
+
+static code_t* method_header(methodstate_t*m)
+{
+ 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);
+ }
+ 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 state->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();
-
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);
- }
-
- /* build info struct */
- int num_interfaces = (list_length(implements));
- state->clsinfo = classinfo_register(access, package, classname, num_interfaces);
- state->clsinfo->superclass = extends;
- int pos = 0;
- classinfo_list_t*l = implements;
- for(l=implements;l;l=l->next) {
- state->clsinfo->interfaces[pos++] = l->classinfo;
- }
+ 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);
+
+ /* 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;
- MULTINAME(classname2,state->clsinfo);
+ 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;
+ }
- /*if(extends) {
- state->cls_init = abc_getlocal_0(state->cls_init);
- state->cls_init = abc_constructsuper(state->cls_init, 0);
- }*/
+ /* generate the abc code for this class */
+ MULTINAME(classname2,state->cls->info);
+ multiname_t*extends2 = sig2mname(extends);
- state->cls = abc_class_new(state->file, &classname2, extends2);
- if(flags&FLAG_FINAL) abc_class_final(state->cls);
- if(flags&FLAG_DYNAMIC) abc_class_sealed(state->cls);
- if(interface) abc_class_interface(state->cls);
+ 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);
+ }
- for(mlist=implements;mlist;mlist=mlist->next) {
- MULTINAME(m, mlist->classinfo);
- abc_class_add_interface(state->cls, &m);
- }
+ abc_class_protectedNS(state->cls->abc, classname);
- /* now write the construction code for this class */
- int slotindex = abc_initscript_addClassTrait(state->init, &classname2, state->cls);
+ for(mlist=implements;mlist;mlist=mlist->next) {
+ MULTINAME(m, mlist->classinfo);
+ abc_class_add_interface(state->cls->abc, &m);
+ }
- abc_method_body_t*m = state->init->method->body;
- __ getglobalscope(m);
- classinfo_t*s = extends;
+ /* write the construction code for this class to the global init
+ function */
+ int slotindex = abc_initscript_addClassTrait(global->init, &classname2, state->cls->abc);
- 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 <nr> (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);
- 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);
- } else {
- globalclass = strdup(classname);
- }
- }
- multiname_destroy(extends2);
-}
+ abc_method_body_t*m = global->init->method->body;
+ __ getglobalscope(m);
+ classinfo_t*s = extends;
-static void endclass()
-{
- if(state->cls_init) {
- if(!state->cls->constructor) {
- abc_method_t*m = abc_class_constructor(state->cls, 0);
- m->body->code = code_append(m->body->code, state->cls_init);
- m->body->code = abc_returnvoid(m->body->code);
- } else {
- code_t*c = state->cls->constructor->body->code;
- c = code_append(state->cls_init, c);
- state->cls->constructor->body->code = c;
+ 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
}
- }
- if(state->cls_static_init) {
- if(!state->cls->static_constructor) {
- abc_method_t*m = abc_class_staticconstructor(state->cls, 0);
- m->body->code = code_append(m->body->code, state->cls_static_init);
- m->body->code = abc_returnvoid(m->body->code);
+ /* 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 <nr> (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 {
- state->cls->static_constructor->body->code =
- code_append(state->cls_static_init, state->cls->static_constructor->body->code);
+ __ 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);
- old_state();
-}
+ /* flash.display.MovieClip handling */
-typedef struct _variable {
- int index;
- classinfo_t*type;
-} variable_t;
-
-static int find_variable(char*name, classinfo_t**m)
-{
- state_list_t* s = state_stack;
- while(s) {
- variable_t*v = dict_lookup(s->state->vars, name);
- if(v) {
- if(m) {
- *m = v->type;
+ 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);
}
- return v->index;
}
- 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->vars, name)!=0;
-}
-static int new_variable(char*name, classinfo_t*type)
+
+static void setstaticfunction(int x)
{
- NEW(variable_t, v);
- v->index = global->variable_count;
- v->type = type;
- dict_put(state->vars, name, v);
- return global->variable_count++;
+ if(state->cls) {
+ if(x&FLAG_STATIC) {
+ state->method = state->cls->static_init;
+ } else {
+ state->method = state->cls->init;
+ }
+ } else {
+ parserassert(state->method);
+ }
}
-#define TEMPVARNAME "__as3_temp__"
-static int gettempvar()
+
+static void endclass()
{
- int i = find_variable(TEMPVARNAME, 0);
- if(i<0) {
- return new_variable(TEMPVARNAME, 0);
- } else {
- return i;
+ 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();
}
-code_t* killvars(code_t*c)
+void check_code_for_break(code_t*c)
{
- int t;
- for(t=0;t<state->vars->hashsize;t++) {
- dictentry_t*e =state->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;
+ while(c) {
+ if(c->opcode == OPCODE___BREAK__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Unresolved \"break %s\"", name);
+ }
+ if(c->opcode == OPCODE___CONTINUE__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Unresolved \"continue %s\"", name);
}
+ c=c->prev;
}
- return 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)) {
}
}
-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)
+{
+ 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);
+ }
+ }
+}
+
+static methodinfo_t*registerfunction(enum yytokentype getset, int flags, char*name, params_t*params, classinfo_t*return_type, int slot)
{
- memberinfo_t*minfo = 0;
- if(getset != KW_GET && getset != KW_SET) {
- if(registry_findmember(state->clsinfo, name)) {
- syntaxerror("class already contains a member/method called '%s'", name);
+ 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 = memberinfo_register(state->clsinfo, name, MEMBER_METHOD);
+ 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->m->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->clsinfo, 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->clsinfo, 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)
{
- token_list_t*t;
- new_state();
- global->variable_count = 0;
- state->function = name;
-
- if(state->m) {
+ if(state->method && state->method->info) {
syntaxerror("not able to start another method scope");
}
+ new_state();
+ state->new_vars = 1;
+
+ if(as3_pass == 1) {
+ state->method = rfx_calloc(sizeof(methodstate_t));
+ state->method->has_super = 0;
- namespace_t mname_ns = {flags2access(flags), ""};
- multiname_t mname = {QNAME, &mname_ns, 0, name};
+ 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__";
- multiname_t*type2 = sig2mname(return_type);
- int slot = 0;
- if(!strcmp(state->clsinfo->name,name)) {
- state->m = abc_class_constructor(state->cls, type2);
- name = "__as3_constructor__";
- } else {
- if(flags&FLAG_STATIC)
- state->m = abc_class_staticmethod(state->cls, type2, &mname);
- else
- state->m = abc_class_method(state->cls, type2, &mname);
- slot = state->m->trait->slot_id;
+ 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->minfo = registerfunction(getset, flags, name, params, return_type, slot);
- if(getset == KW_GET) state->m->trait->kind = TRAIT_GETTER;
- if(getset == KW_SET) state->m->trait->kind = TRAIT_SETTER;
- if(params->varargs) state->m->flags |= METHOD_NEED_REST;
+ 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 abc_method_t* endfunction(token_t*ns, int flags, enum yytokentype getset, char*name,
+ params_t*params, classinfo_t*return_type, code_t*body)
+{
+ 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;t<d->hashsize;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;
+ }
- 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
+ dict_destroy(m->unresolved_variables);
+ m->unresolved_variables = 0;
+ }
+ ml = ml->next;
}
- multiname_t*m = sig2mname(p->param->type);
- list_append(state->m->parameters, m);
- if(p->param->value) {
- check_constant_against_type(p->param->type, p->param->value);
- opt=1;list_append(state->m->optional_parameters, p->param->value);
- } else if(opt) {
- syntaxerror("non-optional parameter not allowed after optional parameters");
+ 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);
+
+ old_state();
+ return 0;
}
- /* state->vars is initialized by state_new */
- if(new_variable((flags&FLAG_STATIC)?"class":"this", state->clsinfo)!=0) syntaxerror("Internal error");
+ 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};
- for(p=params->list;p;p=p->next) {
- new_variable(p->param->name, p->param->type);
- }
-}
-static void endfunction(code_t*body)
-{
-
- if(!(state->cls->flags & CLASS_INTERFACE)) {
- code_t*c = 0;
- if(state->late_binding) {
- c = abc_getlocal_0(c);
- c = abc_pushscope(c);
+ 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");
+ }
+ }
+ 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;
+ }
+ }
}
- c = code_append(c, state->initcode);
- c = code_append(c, body);
- /* append return if necessary */
- if(!c || c->opcode != OPCODE_RETURNVOID &&
- c->opcode != OPCODE_RETURNVALUE) {
- c = abc_returnvoid(c);
+ 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");
}
- if(state->m->body->code) syntaxerror("internal error");
- state->m->body->code = c;
+
+ old_state();
+ return f;
}
- 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->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->next;
+ 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)
{
if(!type1 || !type2)
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();
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) {
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++;
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;
}
return (c && !c->prev && !c->next && c->opcode == OPCODE_PUSHUNDEFINED);
}
-void parserassert(int b)
-{
- if(!b) syntaxerror("internal error: assertion failed");
-}
-
-static classinfo_t* find_class(char*name)
+static slotinfo_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;
}
/* 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)
[prefix code] ([dup]) [read instruction] [middlepart] [setvar] [write instruction] [getvar]
*/
-
if(in && in->opcode == OPCODE_COERCE_A) {
in = code_cutlast(in);
}
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 {
} 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;
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
-MAYBECODE: CODE {$$=$1;/*TODO: do something with this code if we're not in a function*/}
-MAYBECODE: {$$=code_new();}
+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
+
+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;}
$$.t=TYPE_ANY;
}
-VAR : "const" | "var"
-VARIABLE_DECLARATION : VAR VARIABLE_LIST {$$=$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->initcode = defaultvalue(state->initcode, $3);
- state->initcode = abc_setlocal(state->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 {
- $$ = code_new();
+ // don't do anything
+ code_free($3.c);
+ code_free($$);
+ $$ = 0;
+ break;
}
}
-
- /* that's the default for a local register, anyway
- else {
- state->initcode = abc_pushundefined(state->initcode);
- state->initcode = abc_setlocal(state->initcode, index);
- }*/
- //printf("variable %s -> %d (%s)\n", $2->text, index, $4.t?$4.t->name:"");
+ if(slot) {
+ $$ = abc_setslot($$, index);
+ } else {
+ $$ = abc_setlocal($$, index);
+ }
}
/* ------------ control flow ------------------------- */
MAYBEELSE: "else" CODEBLOCK {$$=$2;}
//MAYBEELSE: ';' "else" CODEBLOCK {$$=$3;}
-IF : "if" '(' {new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE {
- $$ = state->initcode;state->initcode=0;
-
+IF : "if" '(' {PASS12 new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE {
+
+ $$ = code_new();
$$ = code_append($$, $4.c);
code_t*myjmp,*myif = $$ = abc_iffalse($$, 0);
if($7) {
myjmp = $$ = abc_jump($$, 0);
}
- myif->branch = $$ = abc_label($$);
- if($7) {
- $$ = code_append($$, $7);
- myjmp->branch = $$ = abc_label($$);
+ myif->branch = $$ = 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);
+ $$ = e;
+ }
+ PASS12 old_state();
+}
+
+CATCH_LIST: CATCH {$$.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);
+ $$.finally = $2->to;$2->to=0;
+ }
+}
+CATCH_FINALLY_LIST: FINALLY {
+ $$.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 {
- $$ = state->initcode;state->initcode=0;
+ code_t*start = abc_nop(0);
+ $$ = 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->initcode;state->initcode=0;
+/* ------------ throw ------------------------------- */
- 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($$, out);
-
- $$ = 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($$);
+}
+
+/* ------------ with -------------------------------- */
-BREAK : "break" {
- $$ = abc___break__(0);
+WITH : "with" '(' EXPRESSION ')' CODEBLOCK {
+ $$ = $3.c;
+ $$ = abc_pushscope($$);
+ $$ = code_append($$, $5);
+ $$ = abc_popscope($$);
}
/* ------------ packages and imports ---------------- */
X_IDENTIFIER: T_IDENTIFIER
- | "package" {$$="package";}
+ | "package" {PASS12 $$="package";}
-PACKAGE: PACKAGE '.' X_IDENTIFIER {$$ = concat3str($1,".",$3);}
-PACKAGE: X_IDENTIFIER {$$=$1;}
+PACKAGE: PACKAGE '.' X_IDENTIFIER {PASS12 $$ = concat3($1,".",$3);free($1);$1=0;}
+PACKAGE: X_IDENTIFIER {PASS12 $$=strdup($1);}
-PACKAGE_DECLARATION : "package" PACKAGE '{' {startpackage($2)} MAYBECODE '}' {endpackage()}
-PACKAGE_DECLARATION : "package" '{' {startpackage("")} MAYBECODE '}' {endpackage()}
+PACKAGE_DECLARATION : "package" PACKAGE '{' {PASS12 startpackage($2);free($2);$2=0;}
+ MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;}
+PACKAGE_DECLARATION : "package" '{' {PASS12 startpackage("");}
+ MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;}
-IMPORT : "import" QNAME {
+IMPORT : "import" PACKAGEANDCLASS {
+ PASS12
+ slotinfo_t*s = registry_find($2->package, $2->name);
+ if(!s) {// || !(s->flags&FLAG_BUILTIN)) {
+ as3_schedule_class($2->package, $2->name);
+ }
+
+ PASS2
classinfo_t*c = $2;
if(!c)
syntaxerror("Couldn't import class\n");
$$=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();
/* ------------ 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);
+ 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->clsinfo, $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, &mname, &m);
- } else {
- t=abc_class_slot(state->cls, &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, &mname, &m);
- } else {
- t=abc_class_staticslot(state->cls, &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;
}
+
+ $$=0;
+ setstaticfunction(0);
}
/* ------------ constants -------------------------------------- */
STATICCONSTANT : T_INT {$$ = 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($$.list, $4);
// non empty
PARAM_LIST: PARAM_LIST ',' PARAM {
+ PASS12
$$ = $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 '}'
+{
+ 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);
+
+ 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 '}'
{
- if(!state->m) syntaxerror("internal error: undefined function");
- endfunction($11);
+ 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();}
/* ----------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);
- $$.t = $2;
}
/* TODO: use abc_call (for calling local variables),
call (for closures)
*/
FUNCTIONCALL : E '(' MAYBE_EXPRESSION_LIST ')' {
- typedcode_list_t*l = $3;
- int len = 0;
- code_t*paramcode = 0;
- while(l) {
- paramcode = code_append(paramcode, l->typedcode->c); // push parameters on stack
- l = l->next;
- len ++;
- }
-
+
$$.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,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($$.c->opcode == OPCODE_GETSUPER) {
+ multiname_t*name = $$.c->data[0];$$.c->data[0]=0;
+ $$.c = code_cutlast($$.c);
+ $$.c = code_append($$.c, paramcode);
+ $$.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");
+ if(!state->method->is_constructor) syntaxerror("super() not allowed outside of a constructor");
+
+ $$.c = code_new();
+ $$.c = abc_getlocal_0($$.c);
+
+ $$.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($$.c, $3.len);
+ $$.c = abc_pushundefined($$.c);
+ $$.t = TYPE_ANY;
+}
+
DELETE: "delete" E {
$$.c = $2.c;
if($$.c->opcode == OPCODE_COERCE_A) {
$$.c->opcode = OPCODE_DELETEPROPERTY;
} else if($$.c->opcode == OPCODE_GETSLOT) {
int slot = (int)(ptroff_t)$$.c->data[0];
- multiname_t*name = abc_class_find_slotid(state->cls,slot)->name;
+ multiname_t*name = traits_find_slotid(state->cls->abc->traits,slot)->name;
$$.c = code_cutlast($$.c);
$$.c = abc_deleteproperty2($$.c, name);
} else {
$$.c = code_append($$.c,$3.c);
$$.t = $3.t;
}
-VOIDEXPRESSION : EXPRESSION %prec below_minus {$$=cut_last_push($1.c);}
+VOIDEXPRESSION : EXPRESSION %prec below_minus {
+ $$=cut_last_push($1.c);
+}
// ----------------------- 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 {$$.c = abc_pushbyte(0, $1);
//MULTINAME(m, registry_getintclass());
CONSTANT : T_FLOAT {$$.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" {$$.c = abc_pushundefined(0);
$$.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;
}
$$.t = TYPE_INT;
}
-E : E '-' E {$$.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;
$$.c = abc_divide($$.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);
$$.t = TYPE_INT;
} else {
}
}
+E : E "in" E {$$.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($$.c);
}
}
+E : E "instanceof" E
+ {$$.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);
$$.t = TYPE_BOOLEAN;
E : '-' E {
$$=$2;
- if(IS_INT($2)) {
+ if(IS_INT($2.t)) {
$$.c=abc_negate_i($$.c);
$$.t = TYPE_INT;
} else {
E : E '[' E ']' {
$$.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);
$$.c = toreadwrite($1.c, c, 0, 0);
$$.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;
}
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);
- $$.t = $1.t;
}
+
+// TODO: use inclocal, like with ++
E : E "--" { code_t*c = 0;
classinfo_t*type = $1.t;
if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) {
$$.t = $2.t;
}
+E : "super" '.' T_IDENTIFIER
+ { if(!state->cls->info)
+ syntaxerror("super keyword not allowed outside a class");
+ classinfo_t*t = state->cls->info->superclass;
+ if(!t) t = TYPE_OBJECT;
+
+ 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 = 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
{$$.c = $1.c;
classinfo_t*t = $1.t;
char is_static = 0;
- if(TYPE_IS_CLASS(t)) {
- memberinfo_t*m = registry_findmember($1.t, "prototype");
- if(!m) syntaxerror("identifier '%s' not found in anonymous class", $3);
- t = m->type;
+ if(TYPE_IS_CLASS(t) && t->data) {
+ t = t->data;
is_static = 1;
}
if(t) {
- memberinfo_t*f = registry_findmember(t, $3);
+ memberinfo_t*f = registry_findmember(t, $3, 1);
char noslot = 0;
if(f && !is_static != !(f->flags&FLAG_STATIC))
noslot=1;
-
if(f && f->slot && !noslot) {
$$.c = abc_getslot($$.c, f->slot);
} else {
- if(f) {
- namespace_t ns = {flags2access(f->flags), ""}; // needs to be "", not $$.t->package (!)
- multiname_t m = {QNAME, &ns, 0, $3};
- $$.c = abc_getproperty2($$.c, &m);
- } else {
- multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $3};
- $$.c = abc_getproperty2($$.c, &m);
- }
+ MEMBER_MULTINAME(m, f, $3);
+ $$.c = abc_getproperty2($$.c, &m);
}
/* determine type */
- if(f) {
- if(f->kind == MEMBER_METHOD) {
- $$.t = TYPE_FUNCTION(f);
- } else {
- $$.t = f->type;
- }
- } else {
+ $$.t = slotinfo_gettype((slotinfo_t*)f);
+ if(!$$.t)
$$.c = abc_coerce_a($$.c);
- $$.t = registry_getanytype();
- }
} else {
/* when resolving a property on an unknown type, we do know the
name of the property (and don't seem to need the package), but
- we do need to make avm2 try out all access modes */
+ we need to make avm2 try out all access modes */
multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $3};
$$.c = abc_getproperty2($$.c, &m);
$$.c = abc_coerce_a($$.c);
}
VAR_READ : T_IDENTIFIER {
+ PASS1
+ /* Queue unresolved identifiers for checking against the parent
+ function's variables.
+ We consider everything which is not a local variable "unresolved".
+ This encompasses class names, members of the surrounding class
+ etc. which *correct* because local variables of the parent function
+ would shadow those.
+ */
+ if(state->method->inner && !find_variable(state, $1)) {
+ unknown_variable($1);
+ }
+ PASS2
+
$$.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->clsinfo, $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->minfo?(state->minfo->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 */
- state->late_binding = 1;
+
+ if(f->kind == INFOTYPE_METHOD) {
+ $$.t = TYPE_FUNCTION(f);
+ } else {
$$.t = f->type;
- namespace_t ns = {flags2access(f->flags), ""};
+ }
+ 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;
+ $$.t = f->type;
+ namespace_t ns = {f->access, ""};
multiname_t m = {QNAME, &ns, 0, $1};
$$.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);
}
- $$.t = TYPE_CLASS(a);
+ break;
+ }
/* unknown object, let the avm2 resolve it */
- } else {
- if(strcmp($1,"trace"))
- warning("Couldn't resolve '%s', doing late binding", $1);
- state->late_binding = 1;
+ if(1) {
+ as3_softwarning("Couldn't resolve '%s', doing late binding", $1);
+ state->method->late_binding = 1;
multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $1};
}
}
-//TODO:
-//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants
-//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration
-//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression
-
// ----------------- namespaces -------------------------------------------------
-NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER {$$=$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;
+}
git.asbjorn.biz / swftools.git / blobdiff