#include "registry.h"
#include "code.h"
#include "opcodes.h"
+#include "compiler.h"
+
+extern int a3_lex();
%}
%error-verbose
%union tokenunion {
- tokenptr_t token;
+ enum yytokentype token;
+ int flags;
classinfo_t*classinfo;
classinfo_list_t*classinfo_list;
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;
- char*string;
+ 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<token> T_IDENTIFIER
-%token<string> T_STRING
-%token<token> T_REGEXP
+%token<id> T_IDENTIFIER T_NAMESPACE
+%token<str> T_STRING
+%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_FOR "for"
+%token<token> KW_FINALLY "finally"
+%token<token> KW_UNDEFINED "undefined"
+%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_STATIC
+%token<token> KW_VOID "void"
+%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_SHL "<<"
%token<token> T_USHR ">>>"
%token<token> T_SHR ">>"
-%token<token> T_SEMICOLON ';'
-%token<token> T_STAR '*'
-%token<token> T_DOT '.'
-%type <token> X_IDENTIFIER VARCONST
+%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
+%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 <params> PARAM_LIST
%type <params> MAYBE_PARAM_LIST
-%type <token> MODIFIERS
-%type <token> MODIFIER_LIST
+%type <flags> MAYBE_MODIFIERS
+%type <flags> MODIFIER_LIST
+%type <constant> STATICCONSTANT MAYBESTATICCONSTANT
%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 <token> PACKAGE
%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
-// http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00000012.html
%left prec_none
+
+%left below_semicolon
+%left ';'
+%left ','
+%nonassoc below_assignment // for ?:, contrary to spec
+%right '=' "*=" "/=" "%=" "+=" "-=" "<<=" ">>=" ">>>=" "&=" "^=" "|="
%right '?' ':'
-%nonassoc '='
-%nonassoc "/=" "%="
-%nonassoc "+=" "-="
-%nonassoc ">>="
-%nonassoc "<<="
-%nonassoc ">>>="
%left "||"
%left "&&"
-%nonassoc '|'
-%nonassoc '^'
+%left '|'
+%left '^'
%nonassoc '&'
-%nonassoc "!=" "==" "===" "<=" '<' ">=" '>' // TODO: support "a < b < c" syntax?
-%nonassoc "is"
-%left prec_belowminus
-%left '-'
-%left '+'
-%left "<<"
-%left ">>>"
-%left ">>"
-%left '%'
-%left '/'
-%left '*'
-%left '!'
-%left '~'
-%left "--" "++"
-%left '['
-%nonassoc "as"
-%left '.' ".." "::"
-%nonassoc T_IDENTIFIER
-%left below_semicolon
-%left ';'
-%nonassoc "else"
+%nonassoc "==" "!=" "===" "!=="
+%nonassoc "is" "as" "in"
+%nonassoc "<=" '<' ">=" '>' "instanceof" // TODO: support "a < b < c" syntax?
+%left "<<" ">>" ">>>"
+%left below_minus
+%left '-' '+'
+%left '/' '*' '%'
+%left plusplus_prefix minusminus_prefix '~' '!' "void" "delete" "typeof" //FIXME: *unary* + - should be here, too
+%left "--" "++"
+%nonassoc below_curly
+
%left '('
+%left new2
+%left '[' ']' "new" '{' "{ (dictionary)" '.' ".." "::" '@'
+
+%left T_IDENTIFIER
+%left above_identifier
+%left below_else
+%nonassoc "else"
// needed for "return" precedence:
%nonassoc T_STRING T_REGEXP
%nonassoc T_INT T_UINT T_BYTE T_SHORT T_FLOAT
-%nonassoc "new" "false" "true" "null"
+%nonassoc "false" "true" "null" "undefined" "super" "function"
+%left above_function
-%left prec_highest
%{
-static int yyerror(char*s)
+static int a3_error(char*s)
{
syntaxerror("%s", s);
+ return 0; //make gcc happy
}
-static token_t* concat2(token_t* t1, token_t* t2)
-{
- NEW(token_t,t);
- int l1 = strlen(t1->text);
- int l2 = strlen(t2->text);
- t->text = malloc(l1+l2+1);
- memcpy(t->text , t1->text, l1);
- memcpy(t->text+l1, t2->text, l2);
- t->text[l1+l2] = 0;
- return t;
-}
-static token_t* concat3(token_t* t1, token_t* t2, token_t* t3)
+
+
+static char* concat2(const char* t1, const char* t2)
{
- NEW(token_t,t);
- int l1 = strlen(t1->text);
- int l2 = strlen(t2->text);
- int l3 = strlen(t3->text);
- t->text = malloc(l1+l2+l3+1);
- memcpy(t->text , t1->text, l1);
- memcpy(t->text+l1, t2->text, l2);
- memcpy(t->text+l1+l2, t3->text, l3);
- t->text[l1+l2+l3] = 0;
- return t;
-}
-static char* concat3str(const char* t1, const char* t2, const char* t3)
+ 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* 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_body_t*m;
+ char new_vars; // e.g. transition between two functions
+
+ classstate_t*cls;
+ methodstate_t*method;
- array_t*vars;
- int local_var_base;
- char late_binding;
+ char*exception_name;
+
+ dict_t*vars;
} state_t;
+typedef struct _global {
+ abc_file_t*file;
+ abc_script_t*init;
+ dict_t*token2info;
+ dict_t*file2token2info;
+} global_t;
+
+static global_t*global = 0;
static state_t* state = 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) \
m##_l.namespace = &m##_ns; \
multiname_t m = {MULTINAMEL, 0, &m##_nsset, 0};
-static state_list_t*state_stack=0;
+static namespace_t ns1 = {ACCESS_PRIVATE, ""};
+static namespace_t ns2 = {ACCESS_PROTECTED, ""};
+static namespace_t ns3 = {ACCESS_PACKAGEINTERNAL, ""};
+static namespace_t ns4 = {ACCESS_PACKAGE, ""};
+static namespace_list_t nl4 = {&ns4,0};
+static namespace_list_t nl3 = {&ns3,&nl4};
+static namespace_list_t nl2 = {&ns2,&nl3};
+static namespace_list_t nl1 = {&ns1,&nl2};
+static namespace_set_t nopackage_namespace_set = {&nl1};
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(oldstate) {
- s->local_var_base = array_length(oldstate->vars) + oldstate->local_var_base;
- }
if(!s->imports) {
s->imports = dict_new();
}
- state_stack = sl;
state = s;
state->level++;
- state->vars = array_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)
{
+ 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, 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;
+
+ dict_put(state->vars, name, v);
+
+ return v;
+}
+static int new_variable(const char*name, classinfo_t*type, char init, char maybeslot)
+{
+ return new_variable2(name, type, init, maybeslot)->index;
+}
+
+#define TEMPVARNAME "__as3_temp__"
+static int gettempvar()
+{
+ variable_t*v = find_variable(state, TEMPVARNAME);
+ if(v)
+ return v->index;
+ return new_variable(TEMPVARNAME, 0, 0, 0);
+}
+
+code_t* var_block(code_t*body)
+{
+ code_t*c = 0;
+ code_t*k = 0;
+ int t;
+ int num=0;
+ for(t=0;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;
+ }
+ }
+
+ 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;
+ }
+ }
- state->init->method->body->code = c;
+ c = code_append(c, body);
+ c = code_append(c, k);
+ return c;
+}
+
+void unknown_variable(char*name)
+{
+ if(!state->method->unresolved_variables)
+ state->method->unresolved_variables = dict_new();
+ if(!dict_contains(state->method->unresolved_variables, name))
+ dict_put(state->method->unresolved_variables, name, 0);
+}
+
+#define parserassert(b) {if(!(b)) parsererror(__FILE__, __LINE__,__func__);}
+
+static void parsererror(const char*file, int line, const char*f)
+{
+ syntaxerror("internal error in %s, %s:%d", f, file, line);
}
-void* finalize_state()
+
+
+static code_t* method_header(methodstate_t*m)
{
- if(state->level!=1) {
- syntaxerror("unexpected end of file");
+ code_t*c = 0;
+ if(m->uses_slots || (m->late_binding && !m->inner)) {
+ c = abc_getlocal_0(c);
+ c = abc_pushscope(c);
+ }
+ if(m->uses_slots) {
+ c = abc_newactivation(c);
+ c = abc_pushscope(c);
+ }
+ methodstate_list_t*l = m->innerfunctions;
+ while(l) {
+ parserassert(l->methodstate->abc);
+ if(m->uses_slots && l->methodstate->is_a_slot) {
+ c = abc_getscopeobject(c, 1);
+ c = abc_newfunction(c, l->methodstate->abc);
+ c = abc_dup(c);
+ c = abc_setlocal(c, l->methodstate->var_index);
+ c = abc_setslot(c, l->methodstate->var_index);
+ } else {
+ c = abc_newfunction(c, l->methodstate->abc);
+ c = abc_setlocal(c, l->methodstate->var_index);
+ }
+ free(l->methodstate);l->methodstate=0;
+ l = l->next;
+ }
+ if(m->header) {
+ c = code_append(c, m->header);
+ m->header = 0;
+ }
+ if(m->is_constructor && !m->has_super) {
+ // call default constructor
+ c = abc_getlocal_0(c);
+ c = abc_constructsuper(c, 0);
}
- abc_method_body_t*m = state->init->method->body;
- //__ popscope(m);
+ list_free(m->innerfunctions);
+ m->innerfunctions = 0;
+ return c;
+}
- __ findpropstrict(m, "[package]::trace");
- __ pushstring(m, "[leaving global init function]");
- __ callpropvoid(m, "[package]::trace", 1);
- __ returnvoid(m);
- return 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(token_t*t)
+static void startpackage(char*name)
{
- if(state->package) {
- syntaxerror("Packages can not be nested.");
- }
new_state();
- char*name = t?t->text:"";
/*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(token_t*modifiers, token_t*name, 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();
- char*classname = name->text;
-
token_list_t*t=0;
classinfo_list_t*mlist=0;
- /*printf("entering class %s\n", name->text);
- printf(" modifiers: ");for(t=modifiers->tokens;t;t=t->next) printf("%s ", t->token->text);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");
- */
- char public=0,internal=0,final=0,sealed=1;
- for(t=modifiers->tokens;t;t=t->next) {
- if(t->token->type == KW_INTERNAL) {
- /* the programmer is being explicit-
- being internal is the default anyway */
- internal = 1;
- } else if(t->token->type == KW_PUBLIC) {
- public = 1;
- } else if(t->token->type == KW_FINAL) {
- final = 1;
- } else {
- syntaxerror("modifier \"%s\" not supported in class declaration", t->token->text);
- }
- }
- if(public&&internal)
+ if(flags&~(FLAG_PACKAGEINTERNAL|FLAG_PUBLIC|FLAG_FINAL|FLAG_DYNAMIC|FLAG_INTERFACE))
+ syntaxerror("invalid modifier(s)");
+
+ 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(!public && !state->package) {
- access = ACCESS_PRIVATE; package = current_filename;
- } else if(!public && state->package) {
+ if(!(flags&FLAG_PUBLIC) && state->package==internal_filename_package) {
+ access = ACCESS_PRIVATE; package = internal_filename_package;
+ } else if(!(flags&FLAG_PUBLIC) && state->package!=internal_filename_package) {
access = ACCESS_PACKAGEINTERNAL; package = state->package;
- } else if(state->package) {
+ } else if(state->package!=internal_filename_package) {
access = ACCESS_PACKAGE; package = state->package;
} else {
syntaxerror("public classes only allowed inside a package");
}
- if(registry_findclass(package, classname)) {
- syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname);
+ if(as3_pass==1) {
+ state->cls = rfx_calloc(sizeof(classstate_t));
+ state->cls->init = rfx_calloc(sizeof(methodstate_t));
+ state->cls->static_init = rfx_calloc(sizeof(methodstate_t));
+ /* notice: we make no effort to initialize the top variable (local0) here,
+ even though it has special meaning. We just rely on the facat
+ that pass 1 won't do anything with variables */
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->cls);
+
+ /* set current method to constructor- all code within the class-level (except
+ static variable initializations) will be executed during construction time */
+ state->method = state->cls->init;
+
+ if(registry_find(package, classname)) {
+ syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname);
+ }
+ /* build info struct */
+ int num_interfaces = (list_length(implements));
+ state->cls->info = classinfo_register(access, package, classname, num_interfaces);
+ state->cls->info->flags |= flags & (FLAG_DYNAMIC|FLAG_INTERFACE|FLAG_FINAL);
}
- state->clsinfo = classinfo_register(access, package, classname);
+ if(as3_pass == 2) {
+ state->cls = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount);
+
+ state->method = state->cls->init;
+ parserassert(state->cls && state->cls->info);
+
+ function_initvars(state->cls->init, 0, 0, 1);
+ function_initvars(state->cls->static_init, 0, 0, 0);
+
+ if(extends && (extends->flags & FLAG_FINAL))
+ syntaxerror("Can't extend final class '%s'", extends->name);
+
+ /* fill out interfaces and extends (we couldn't resolve those during the first pass) */
+ state->cls->info->superclass = extends?extends:TYPE_OBJECT;
+ int pos = 0;
+ classinfo_list_t*l = implements;
+ for(l=implements;l;l=l->next) {
+ if(!(l->classinfo->flags & FLAG_INTERFACE))
+ syntaxerror("'%s' is not an interface", l->classinfo->name);
+ state->cls->info->interfaces[pos++] = l->classinfo;
+ }
- MULTINAME(classname2,state->clsinfo);
-
- multiname_t*extends2 = sig2mname(extends);
+ /* generate the abc code for this class */
+ MULTINAME(classname2,state->cls->info);
+ multiname_t*extends2 = sig2mname(extends);
- /*if(extends) {
- state->cls_init = abc_getlocal_0(state->cls_init);
- state->cls_init = abc_constructsuper(state->cls_init, 0);
- }*/
+ state->cls->abc = abc_class_new(global->file, &classname2, extends2);
+ if(state->cls->info->flags&FLAG_FINAL) abc_class_final(state->cls->abc);
+ if(!(state->cls->info->flags&FLAG_DYNAMIC)) abc_class_sealed(state->cls->abc);
+ if(state->cls->info->flags&FLAG_INTERFACE) {
+ abc_class_interface(state->cls->abc);
+ }
- state->cls = abc_class_new(state->file, &classname2, extends2);
- if(final) abc_class_final(state->cls);
- if(sealed) abc_class_sealed(state->cls);
- if(interface) abc_class_interface(state->cls);
+ abc_class_protectedNS(state->cls->abc, classname);
- for(mlist=implements;mlist;mlist=mlist->next) {
- MULTINAME(m, mlist->classinfo);
- abc_class_add_interface(state->cls, &m);
- }
+ for(mlist=implements;mlist;mlist=mlist->next) {
+ MULTINAME(m, mlist->classinfo);
+ abc_class_add_interface(state->cls->abc, &m);
+ }
- /* now write the construction code for this class */
- int slotindex = abc_initscript_addClassTrait(state->init, &classname2, state->cls);
+ /* write the construction code for this class to the global init
+ function */
+ int slotindex = abc_initscript_addClassTrait(global->init, &classname2, state->cls->abc);
- abc_method_body_t*m = state->init->method->body;
- __ getglobalscope(m);
- classinfo_t*s = extends;
+ abc_method_body_t*m = global->init->method->body;
+ __ getglobalscope(m);
+ classinfo_t*s = extends;
- int count=0;
-
- while(s) {
- //TODO: take a look at the current scope stack, maybe
- // we can re-use something
- s = s->superclass;
- if(!s)
- break;
-
- multiname_t*s2 = sig2mname(s);
- __ getlex2(m, s2);
- multiname_destroy(s2);
-
- __ pushscope(m); count++;
- m->code = m->code->prev->prev; // invert
- }
- /* continue appending after last op end */
- while(m->code && m->code->next) m->code = m->code->next;
-
- /* TODO: if this is one of *our* classes, we can also
- do a getglobalscope/getslot <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 && public && classinfo_equals(registry_getMovieClip(),extends)) {
- if(state->package && state->package[0]) {
- globalclass = concat3str(state->package, ".", classname);
+ int count=0;
+
+ while(s) {
+ //TODO: take a look at the current scope stack, maybe
+ // we can re-use something
+ s = s->superclass;
+ if(!s)
+ break;
+
+ multiname_t*s2 = sig2mname(s);
+ __ getlex2(m, s2);
+ multiname_destroy(s2);
+
+ __ pushscope(m); count++;
+ m->code = m->code->prev->prev; // invert
+ }
+ /* continue appending after last op end */
+ while(m->code && m->code->next) m->code = m->code->next;
+
+ /* TODO: if this is one of *our* classes, we can also
+ do a getglobalscope/getslot <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 {
- globalclass = strdup(classname);
+ __ pushnull(m);
+ /* notice: we get a verify error #1107 if the top element on the scope
+ stack is not the global object */
+ __ getlocal_0(m);
+ __ pushscope(m);count++;
+ }
+ __ newclass(m,state->cls->abc);
+ while(count--) {
+ __ popscope(m);
+ }
+ __ setslot(m, slotindex);
+ multiname_destroy(extends2);
+
+ /* flash.display.MovieClip handling */
+
+ if(!as3_globalclass && (flags&FLAG_PUBLIC) && slotinfo_equals((slotinfo_t*)registry_getMovieClip(),(slotinfo_t*)extends)) {
+ if(state->package && state->package[0]) {
+ as3_globalclass = concat3(state->package, ".", classname);
+ } else {
+ as3_globalclass = strdup(classname);
+ }
}
}
- multiname_destroy(extends2);
}
-static void endclass()
+static void setstaticfunction(int x)
{
- if(state->cls_init) {
- if(!state->cls->constructor) {
- abc_method_body_t*m = abc_class_constructor(state->cls, 0, 0);
- m->code = code_append(m->code, state->cls_init);
- m->code = abc_returnvoid(m->code);
+ if(state->cls) {
+ if(x&FLAG_STATIC) {
+ state->method = state->cls->static_init;
} else {
- code_t*c = state->cls->constructor->body->code;
- c = code_append(state->cls_init, c);
- state->cls->constructor->body->code = c;
-
+ state->method = state->cls->init;
}
+ } else {
+ parserassert(state->method);
}
- if(state->cls_static_init) {
- if(!state->cls->static_constructor) {
- abc_method_body_t*m = abc_class_staticconstructor(state->cls, 0, 0);
- m->code = state->cls_static_init;
- } else {
- state->cls->static_constructor->body->code =
- code_append(state->cls_static_init, state->cls->static_constructor->body->code);
+}
+
+static void endclass()
+{
+ if(as3_pass == 2) {
+ if(!state->cls->has_constructor && !(state->cls->info->flags&FLAG_INTERFACE)) {
+ code_t*c = 0;
+ c = abc_getlocal_0(c);
+ c = abc_constructsuper(c, 0);
+ state->cls->init->header = code_append(state->cls->init->header, c);
+ state->cls->has_constructor=1;
+ }
+ if(state->cls->init) {
+ if(state->cls->info->flags&FLAG_INTERFACE) {
+ if(state->cls->init->header)
+ syntaxerror("interface can not have class-level code");
+ } else {
+ abc_method_t*m = abc_class_getconstructor(state->cls->abc, 0);
+ code_t*c = method_header(state->cls->init);
+ m->body->code = wrap_function(c, 0, m->body->code);
+ }
+ }
+ if(state->cls->static_init) {
+ abc_method_t*m = abc_class_getstaticconstructor(state->cls->abc, 0);
+ code_t*c = method_header(state->cls->static_init);
+ m->body->code = wrap_function(c, 0, m->body->code);
}
}
old_state();
}
-static void startfunction(token_t*ns, token_t*mod, token_t*getset, token_t*name,
- params_t*params, classinfo_t*type)
+
+void check_code_for_break(code_t*c)
{
- token_list_t*t;
- new_state();
- state->function = name->text;
-
- if(state->m) {
- syntaxerror("not able to start another method scope");
+ 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;
}
+}
- multiname_t*type2 = sig2mname(type);
- if(!strcmp(state->clsinfo->name,name->text)) {
- state->m = abc_class_constructor(state->cls, type2, 0);
- } else {
- state->minfo = memberinfo_register(state->clsinfo, name->text, MEMBER_METHOD);
- state->m = abc_class_method(state->cls, type2, name->text, 0);
- // getslot on a member slot only returns "undefined", so no need
- // to actually store these
- //state->minfo->slot = state->m->method->trait->slot_id;
- }
- if(getset->type == KW_GET) {
- state->m->method->trait->kind = TRAIT_GETTER;
- }
- if(getset->type == KW_SET) {
- state->m->method->trait->kind = TRAIT_SETTER;
- }
- if(params->varargs) {
- state->m->method->flags |= METHOD_NEED_REST;
- }
- param_list_t*p;
- for(p=params->list;p;p=p->next) {
- if(params->varargs && !p->next) {
- break; //varargs: omit last parameter in function signature
+static void check_constant_against_type(classinfo_t*t, constant_t*c)
+{
+#define xassert(b) if(!(b)) syntaxerror("Invalid default value %s for type '%s'", constant_tostring(c), t->name)
+ if(TYPE_IS_NUMBER(t)) {
+ xassert(c->type == CONSTANT_FLOAT
+ || c->type == CONSTANT_INT
+ || c->type == CONSTANT_UINT);
+ } else if(TYPE_IS_UINT(t)) {
+ xassert(c->type == CONSTANT_UINT ||
+ (c->type == CONSTANT_INT && c->i>=0));
+ } else if(TYPE_IS_INT(t)) {
+ xassert(c->type == CONSTANT_INT);
+ } else if(TYPE_IS_BOOLEAN(t)) {
+ xassert(c->type == CONSTANT_TRUE
+ || c->type == CONSTANT_FALSE);
+ }
+}
+
+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);
}
- multiname_t*m = sig2mname(p->param->type);
- list_append(state->m->method->parameters, m);
}
+}
- /* state->vars is initialized by state_new */
- array_append(state->vars, "this", state->clsinfo);
- for(p=params->list;p;p=p->next) {
- array_append(state->vars, p->param->name, 0);
+static methodinfo_t*registerfunction(enum yytokentype getset, int flags, char*name, params_t*params, classinfo_t*return_type, int slot)
+{
+ methodinfo_t*minfo = 0;
+ U8 access = flags2access(flags);
+ if(!state->cls) {
+ //package method
+ minfo = methodinfo_register_global(access, state->package, name);
+ minfo->return_type = return_type;
+ } else if(getset != KW_GET && getset != KW_SET) {
+ //class method
+ memberinfo_t* m = registry_findmember(state->cls->info, name, 0);
+ if(m) {
+ syntaxerror("class already contains a %s '%s'", infotypename((slotinfo_t*)m), m->name);
+ }
+ minfo = methodinfo_register_onclass(state->cls->info, access, name);
+ minfo->return_type = return_type;
+ // getslot on a member slot only returns "undefined", so no need
+ // to actually store these
+ //state->minfo->slot = state->method->abc->method->trait->slot_id;
+ } else {
+ //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 && params->list->param)
+ type = params->list->param->type;
+ // 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->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 = 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_OVERRIDE) minfo->flags |= FLAG_OVERRIDE;
+ return minfo;
}
-static void endfunction(code_t*body)
+
+static void innerfunction(char*name, params_t*params, classinfo_t*return_type)
{
- code_t*c = 0;
- if(state->late_binding) {
- c = abc_getlocal_0(c);
- c = abc_pushscope(c);
+ //parserassert(state->method && state->method->info);
+
+ methodstate_t*parent_method = state->method;
+
+ if(as3_pass==1) {
+ return_type = 0; // not valid in pass 1
}
- 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);
-
- if(state->m->code) syntaxerror("internal error");
- state->m->code = c;
- old_state();
-}
+ 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);
-static token_t* empty_token()
-{
- NEW(token_t,t);
- t->type=T_EMPTY;
- t->text=0;
- return t;
-}
-
-void extend(token_t*list, token_t*add) {
- list_append(list->tokens,add);
- if(!list->text)
- list->text = add->text;
-}
-void extend_s(token_t*list, char*seperator, token_t*add) {
- list_append(list->tokens,add);
- char*t1 = list->text;
- char*t2 = seperator;
- char*t3 = add->text;
- int l1 = strlen(t1);
- int l2 = strlen(t2);
- int l3 = strlen(t3);
- list->text = malloc(l1+l2+l3+1);
- strcpy(list->text, t1);
- strcpy(list->text+l1, t2);
- strcpy(list->text+l1+l2, t3);
- list->text[l1+l2+l3]=0;
+ state->method->info->return_type = return_type;
+ function_initvars(state->method, params, 0, 1);
+ }
}
-static int find_variable(char*name, classinfo_t**m)
+static void startfunction(token_t*ns, int flags, enum yytokentype getset, char*name,
+ params_t*params, classinfo_t*return_type)
{
- state_list_t* s = state_stack;
- while(s) {
- int i = array_find(s->state->vars, name);
- if(i>=0) {
- if(m) {
- *m = array_getvalue(s->state->vars, i);
- }
- return i + s->state->local_var_base;
+ 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;
+
+ 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
}
- s = s->next;
+ if(state->method->is_constructor)
+ name = "__as3_constructor__";
+
+ return_type = 0;
+ state->method->info = registerfunction(getset, flags, name, params, return_type, 0);
+
+ function_initvars(state->method, params, flags, 1);
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method);
}
- 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 array_contains(state->vars, name);
-}
-static int new_variable(char*name, classinfo_t*type)
-{
- return array_append(state->vars, name, type) + state->local_var_base;
+
+ 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);
+ }
}
-#define TEMPVARNAME "__as3_temp__"
-static int gettempvar()
+
+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)
{
- int i = find_variable(TEMPVARNAME, 0);
- if(i<0) {
- return new_variable(TEMPVARNAME, 0);
- } else {
- return i;
+ 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;
+ }
+
+ dict_destroy(m->unresolved_variables);
+ m->unresolved_variables = 0;
+ }
+ ml = ml->next;
+ }
+ if(state->method->uses_slots) {
+ state->method->slots = dict_new();
+ int i = 1;
+ DICT_ITERATE_ITEMS(state->vars, char*, name, variable_t*, v) {
+ if(v->index && dict_contains(xvars, name)) {
+ v->init = 0;
+ v->index = i++;
+ if(v->is_inner_method) {
+ v->is_inner_method->is_a_slot = 1;
+ }
+ //v->type = 0;
+ dict_put(state->method->slots, name, v);
+ }
+ }
+ state->method->uses_slots = i;
+ dict_destroy(state->vars);state->vars = 0;
+ }
+ dict_destroy(xvars);
+
+ old_state();
+ return 0;
}
-}
-code_t* killvars(code_t*c)
-{
- int t;
- for(t=0;t<state->vars->num;t++) {
- classinfo_t*type = array_getvalue(state->vars, t);
- //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, t+state->local_var_base);
- //}
+ 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};
+
+ 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;
+ }
+ }
+ }
+
+ check_code_for_break(body);
+
+ if(f->body) {
+ f->body->code = body;
+ f->body->exceptions = state->method->exceptions;
+ } else { //interface
+ if(body)
+ syntaxerror("interface methods can't have a method body");
+ }
+
+ old_state();
+ return f;
}
- return c;
+
+ 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();
if(from==to)
return c;
if(!to) {
- /*TODO: can omit this if from is zero? */
return abc_coerce_a(c);
}
- if(TYPE_IS_NUMBER(from) && TYPE_IS_UINT(to)) {
- MULTINAME(m, TYPE_UINT);
+ MULTINAME(m, to);
+ if(!from) {
+ // cast an "any" type to a specific type. subject to
+ // runtime exceptions
return abc_coerce2(c, &m);
}
- if(TYPE_IS_NUMBER(from) && TYPE_IS_INT(to)) {
- MULTINAME(m, TYPE_INT);
+
+ 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) {
+ if(supertype == to) {
+ // target type is one of from's superclasses
+ return abc_coerce2(c, &m);
+ }
+ int t=0;
+ while(supertype->interfaces[t]) {
+ if(supertype->interfaces[t]==to) {
+ // target type is one of from's interfaces
+ return abc_coerce2(c, &m);
+ }
+ t++;
+ }
+ supertype = supertype->superclass;
+ }
+ if(TYPE_IS_FUNCTION(from) && TYPE_IS_FUNCTION(to))
+ return c;
+ if(TYPE_IS_CLASS(from) && TYPE_IS_CLASS(to))
+ return c;
+ 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);
}
-static code_t* toreadwrite(code_t*in, code_t*middlepart, char justassign)
+static slotinfo_t* find_class(char*name)
+{
+ slotinfo_t*c=0;
+
+ 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(!strcmp(e->key, name)) {
+ c = (slotinfo_t*)e->data;
+ if(c) return c;
+ }
+ e = e->next;
+ }
+
+ /* try package.* imports */
+ import_list_t*l = state->wildcard_imports;
+ while(l) {
+ //printf("does package %s contain a class %s?\n", l->import->package, name);
+ c = registry_find(l->import->package, name);
+ if(c) return c;
+ l = l->next;
+ }
+
+ /* try global package */
+ 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)
{
/* converts this:
[prefix code] ([dup]) [read instruction] [middlepart] [setvar] [write instruction] [getvar]
*/
-
if(in && in->opcode == OPCODE_COERCE_A) {
in = code_cutlast(in);
}
prefix = 0;
}
+ char use_temp_var = readbefore;
+
/* generate the write instruction, and maybe append a dup to the prefix code */
code_t* write = abc_nop(0);
if(r->opcode == OPCODE_GETPROPERTY) {
write->opcode = OPCODE_SETPROPERTY;
multiname_t*m = (multiname_t*)r->data[0];
write->data[0] = multiname_clone(m);
- if(m->type != QNAME)
- syntaxerror("illegal lvalue: can't assign a value to this expression (not a qname)");
- if(!justassign)
- prefix = abc_dup(prefix); // we need the object, too
+ if(m->type == QNAME || m->type == MULTINAME) {
+ if(!justassign) {
+ prefix = abc_dup(prefix); // we need the object, too
+ }
+ use_temp_var = 1;
+ } else if(m->type == MULTINAMEL) {
+ if(!justassign) {
+ /* dupping two values on the stack requires 5 operations and one register-
+ couldn't adobe just have given us a dup2? */
+ int temp = gettempvar();
+ prefix = abc_setlocal(prefix, temp);
+ prefix = abc_dup(prefix);
+ 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 {
+ syntaxerror("illegal lvalue: can't assign a value to this expression (not a qname/multiname)");
+ }
} else if(r->opcode == OPCODE_GETSLOT) {
write->opcode = OPCODE_SETSLOT;
write->data[0] = r->data[0];
- if(!justassign)
+ if(!justassign) {
prefix = abc_dup(prefix); // we need the object, too
+ }
+ use_temp_var = 1;
} else if(r->opcode == OPCODE_GETLOCAL) {
write->opcode = OPCODE_SETLOCAL;
write->data[0] = r->data[0];
} 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;
int temp = -1;
if(!justassign) {
- /* read value, modify it with middle part, and write it again,
- using prefix only once and making sure (by using a temporary
- register) that the return value is what we just wrote */
- temp = gettempvar();
- c = code_append(c, prefix);
- c = code_append(c, r);
- 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);
+ if(use_temp_var) {
+ /* with getproperty/getslot, we have to be extra careful not
+ to execute the read code twice, as it might have side-effects
+ (e.g. if the property is in fact a setter/getter combination)
+
+ So read the value, modify it, and write it again,
+ using prefix only once and making sure (by using a temporary
+ register) that the return value is what we just wrote */
+ temp = gettempvar();
+ c = code_append(c, prefix);
+ c = code_append(c, r);
+ if(readbefore) {
+ c = abc_dup(c);
+ c = abc_setlocal(c, temp);
+ }
+ c = code_append(c, middlepart);
+ if(!readbefore) {
+ c = abc_dup(c);
+ c = abc_setlocal(c, temp);
+ }
+ c = code_append(c, write);
+ c = abc_getlocal(c, temp);
+ c = abc_kill(c, temp);
+ } else {
+ /* if we're allowed to execute the read code twice *and*
+ the middlepart doesn't modify the code, things are easier.
+ */
+ code_t* r2 = code_dup(r);
+ //c = code_append(c, prefix);
+ parserassert(!prefix);
+ c = code_append(c, r);
+ c = code_append(c, middlepart);
+ c = code_append(c, write);
+ c = code_append(c, r2);
+ }
} else {
- /* simpler version: overwrite the value without reading
+ /* even smaller version: overwrite the value without reading
it out first */
- c = code_append(c, prefix);
- c = abc_dup(c);
- c = code_append(c, middlepart);
- c = code_append(c, write);
- c = code_append(c, r);
+ if(!use_temp_var) {
+ if(prefix) {
+ c = code_append(c, prefix);
+ c = abc_dup(c);
+ }
+ c = code_append(c, middlepart);
+ 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 = 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;
}
+static code_t* insert_finally_simple(code_t*c, code_t*finally, int tempvar)
+{
+ code_t*i = c;
+ while(i) {
+ code_t*prev = i->prev;
+ if(IS_FINALLY_TARGET(i->opcode)) {
+ if(i->opcode == OPCODE___RETHROW__)
+ i->opcode = OPCODE_THROW;
+ code_t*end = code_dup(finally);
+ code_t*start = code_start(end);
+ if(prev) prev->next = start;
+ start->prev = prev;
+ i->prev = end;
+ end->next = i;
+ }
+ i = prev;
+ }
+ return code_append(c, finally);
+}
-%}
+code_t* insert_finally(code_t*c, code_t*finally, int tempvar)
+{
+ if(!finally)
+ return c;
+ code_t*i = c;
+ char cantdup=0;
+ int num_insertion_points=0;
+ while(i) {
+ if(IS_FINALLY_TARGET(i->opcode))
+ num_insertion_points++;
+ i = i->prev;
+ }
+ i = finally;
+ int code_size=0;
+ while(i) {
+ code_size++;
+ if(i->branch || i->opcode == OPCODE_LOOKUPSWITCH) {
+ cantdup=1;
+ }
+ i = i->prev;
+ }
+ int simple_version_cost = (1+num_insertion_points)*code_size;
+ int lookup_version_cost = 4*num_insertion_points + 5;
+
+ if(cantdup || simple_version_cost > lookup_version_cost) {
+ printf("lookup %d > *%d*\n", simple_version_cost, lookup_version_cost);
+ return insert_finally_lookup(c, finally, tempvar);
+ } else {
+ printf("simple *%d* < %d\n", simple_version_cost, lookup_version_cost);
+ return insert_finally_simple(c, finally, tempvar);
+ }
+}
+
+#define PASS1 }} if(as3_pass == 1) {{
+#define PASS1END }} if(as3_pass == 2) {{
+#define PASS2 }} if(as3_pass == 2) {{
+#define PASS12 }} {{
+#define PASS12END }} if(as3_pass == 2) {{
+%}
%%
/* ------------ code blocks / statements ---------------- */
-PROGRAM: MAYBECODE
+PROGRAM: MAYBE_PROGRAM_CODE_LIST
+
+MAYBE_PROGRAM_CODE_LIST: | PROGRAM_CODE_LIST
+PROGRAM_CODE_LIST: PROGRAM_CODE
+ | PROGRAM_CODE_LIST PROGRAM_CODE
+
+PROGRAM_CODE: PACKAGE_DECLARATION
+ | INTERFACE_DECLARATION
+ | CLASS_DECLARATION
+ | FUNCTION_DECLARATION
+ | SLOT_DECLARATION
+ | PACKAGE_INITCODE
+ | CONDITIONAL_COMPILATION '{' MAYBE_PROGRAM_CODE_LIST '}' // conditional compilation
+ | ';'
+
+MAYBE_INPACKAGE_CODE_LIST: | INPACKAGE_CODE_LIST
+INPACKAGE_CODE_LIST: INPACKAGE_CODE
+ | INPACKAGE_CODE_LIST INPACKAGE_CODE
+
+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();}
+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 {$$ = code_append($1, $3);}
-ONE_VARIABLE: {} T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION
+ONE_VARIABLE: T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION
{
- if(variable_exists($2->text))
- syntaxerror("Variable %s already defined", $2->text);
+PASS12
+ if(variable_exists($1))
+ syntaxerror("Variable %s already defined", $1);
+PASS1
+ new_variable($1, 0, 1, 0);
+PASS2
- if(!is_subtype_of($4.t, $3)) {
- syntaxerror("Can't convert %s to %s", $4.t->name,
- $3->name);
+ if(!is_subtype_of($3.t, $2)) {
+ syntaxerror("Can't convert %s to %s", $3.t->name,
+ $2->name);
+ }
+
+ char slot = 0;
+ int index = 0;
+ if(state->method->uses_slots) {
+ variable_t* v = find_slot(state, $1);
+ if(v && !v->init) {
+ // this variable is stored in a slot
+ v->init = 1;
+ v->type = $2;
+ slot = 1;
+ index = v->index;
+ }
+ }
+ if(!index) {
+ index = new_variable($1, $2, 1, 0);
}
- int index = new_variable($2->text, $3);
+ $$ = slot?abc_getscopeobject(0, 1):0;
- if($3) {
- if($4.c->prev || $4.c->opcode != OPCODE_PUSHUNDEFINED) {
- $$ = $4.c;
- $$ = converttype($$, $4.t, $3);
- $$ = abc_setlocal($$, index);
+ if($2) {
+ if($3.c->prev || $3.c->opcode != OPCODE_PUSHUNDEFINED) {
+ $$ = code_append($$, $3.c);
+ $$ = converttype($$, $3.t, $2);
} else {
- $$ = defaultvalue(0, $3);
- $$ = abc_setlocal($$, index);
+ code_free($3.c);
+ $$ = defaultvalue($$, $2);
}
-
- /* push default value for type on stack */
- state->initcode = defaultvalue(state->initcode, $3);
- state->initcode = abc_setlocal(state->initcode, index);
} else {
- /* only bother to actually set this variable if its syntax is either
- var x:type;
- or
- var x=expr;
- */
- 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: %prec prec_none {$$ = code_new();}
+MAYBEELSE: %prec below_else {$$ = code_new();}
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 = $$ = abc_label($$);
+ myif->branch = $$ = abc_nop($$);
if($7) {
$$ = code_append($$, $7);
- myjmp->branch = $$ = abc_label($$);
+ myjmp->branch = $$ = abc_nop($$);
}
-
- $$ = killvars($$);old_state();
+ $$ = var_block($$);
+ PASS12 old_state();
}
FOR_INIT : {$$=code_new();}
FOR_INIT : VARIABLE_DECLARATION
FOR_INIT : VOIDEXPRESSION
-FOR : "for" '(' {new_state();} FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK {
- $$ = state->initcode;state->initcode=0;
+// 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
+ $$=$1;
+}
- $$ = code_append($$, $4);
+FOR_START : T_FOR '(' {PASS12 new_state();$$.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 = $$ = abc_label($$);
- $$ = code_append($$, $6.c);
+ $$ = code_append($$, $4.c);
code_t*myif = $$ = abc_iffalse($$, 0);
- $$ = code_append($$, $10);
$$ = code_append($$, $8);
+ code_t*cont = $$ = abc_nop($$);
+ $$ = code_append($$, $6);
$$ = abc_jump($$, loopstart);
- code_t*out = $$ = abc_label($$);
- breakjumpsto($$, out);
+ code_t*out = $$ = abc_nop($$);
+ breakjumpsto($$, $1.name, out);
+ continuejumpsto($$, $1.name, cont);
myif->branch = out;
- $$ = killvars($$);old_state();
+ $$ = 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 : "while" '(' {new_state();} EXPRESSION ')' CODEBLOCK {
- $$ = state->initcode;state->initcode=0;
+WHILE : T_WHILE '(' {PASS12 new_state();} EXPRESSION ')' CODEBLOCK {
+
+ $$ = code_new();
code_t*myjmp = $$ = abc_jump($$, 0);
code_t*loopstart = $$ = abc_label($$);
$$ = code_append($$, $6);
- myjmp->branch = $$ = abc_label($$);
+ code_t*cont = $$ = abc_nop($$);
+ myjmp->branch = cont;
$$ = code_append($$, $4.c);
$$ = abc_iftrue($$, loopstart);
- code_t*out = $$ = abc_label($$);
- breakjumpsto($$, out);
+ code_t*out = $$ = abc_nop($$);
+ breakjumpsto($$, $1, out);
+ continuejumpsto($$, $1, cont);
- $$ = killvars($$);old_state();
+ $$ = var_block($$);
+ PASS12 old_state();
}
-BREAK : "break" {
- $$ = abc___break__(0);
+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($$);
+ PASS12 old_state();
}
-/* ------------ packages and imports ---------------- */
+BREAK : "break" %prec prec_none {
+ $$ = abc___break__(0, "");
+}
+BREAK : "break" T_IDENTIFIER {
+ $$ = abc___break__(0, $2);
+}
+CONTINUE : "continue" %prec prec_none {
+ $$ = abc___continue__(0, "");
+}
+CONTINUE : "continue" T_IDENTIFIER {
+ $$ = abc___continue__(0, $2);
+}
-X_IDENTIFIER: T_IDENTIFIER
- | "package"
+MAYBE_CASE_LIST : {$$=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();
+}
-PACKAGE: PACKAGE '.' X_IDENTIFIER {$$ = concat3($1,$2,$3);}
-PACKAGE: X_IDENTIFIER {$$=$1;}
+/* ------------ try / catch /finally ---------------- */
-PACKAGE_DECLARATION : "package" PACKAGE '{' {startpackage($2)} MAYBECODE '}' {endpackage()}
-PACKAGE_DECLARATION : "package" '{' {startpackage(0)} MAYBECODE '}' {endpackage()}
+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);
+ $$ = e;
-IMPORT : "import" QNAME {
- classinfo_t*c = $2;
- if(!c)
- syntaxerror("Couldn't import class\n");
- state_has_imports();
- dict_put(state->imports, c->name, c);
- $$=0;
+ 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;
+ }
+}
+
+TRY : "try" '{' {PASS12 new_state();} MAYBECODE '}' CATCH_FINALLY_LIST {
+ code_t*out = abc_nop(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__($$);
+ }
+
+ e->from = start;
+ e->to = end;
+
+ l = l->next;
+ }
+ $$ = code_append($$, out);
+
+ $$ = insert_finally($$, $6.finally, tmp);
+
+ list_concat(state->method->exceptions, $6.l);
+
+ $$ = var_block($$);
+ PASS12 old_state();
+}
+
+/* ------------ throw ------------------------------- */
+
+THROW : "throw" EXPRESSION {
+ $$=$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($$);
+}
+
+/* ------------ with -------------------------------- */
+
+WITH : "with" '(' EXPRESSION ')' CODEBLOCK {
+ $$ = $3.c;
+ $$ = abc_pushscope($$);
+ $$ = code_append($$, $5);
+ $$ = abc_popscope($$);
+}
+
+/* ------------ packages and imports ---------------- */
+
+X_IDENTIFIER: T_IDENTIFIER
+ | "package" {PASS12 $$="package";}
+
+PACKAGE: PACKAGE '.' X_IDENTIFIER {PASS12 $$ = concat3($1,".",$3);free($1);$1=0;}
+PACKAGE: X_IDENTIFIER {PASS12 $$=strdup($1);}
+
+PACKAGE_DECLARATION : "package" PACKAGE '{' {PASS12 startpackage($2);free($2);$2=0;}
+ MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;}
+PACKAGE_DECLARATION : "package" '{' {PASS12 startpackage("");}
+ MAYBE_INPACKAGE_CODE_LIST '}' {PASS12 endpackage();$$=0;}
+
+IMPORT : "import" PACKAGEANDCLASS {
+ PASS12
+ slotinfo_t*s = registry_find($2->package, $2->name);
+ if(!s) {// || !(s->flags&FLAG_BUILTIN)) {
+ as3_schedule_class($2->package, $2->name);
+ }
+
+ PASS2
+ classinfo_t*c = $2;
+ if(!c)
+ syntaxerror("Couldn't import class\n");
+ state_has_imports();
+ dict_put(state->imports, c->name, c);
+ $$=0;
}
IMPORT : "import" PACKAGE '.' '*' {
+ PASS12
+ if(strncmp("flash.", $2, 6)) {
+ as3_schedule_package($2);
+ }
+
+ PASS2
NEW(import_t,i);
- i->package = $2->text;
+ i->package = $2;
state_has_imports();
list_append(state->wildcard_imports, i);
$$=0;
/* ------------ classes and interfaces (header) -------------- */
-MODIFIERS : {$$=empty_token();}
-MODIFIERS : MODIFIER_LIST {$$=$1}
-MODIFIER_LIST : MODIFIER MODIFIER_LIST {extend($2,$1);$$=$2;}
-MODIFIER_LIST : MODIFIER {$$=empty_token();extend($$,$1);}
-MODIFIER : KW_PUBLIC | KW_PRIVATE | KW_PROTECTED | KW_STATIC | KW_DYNAMIC | KW_FINAL | KW_OVERRIDE | KW_NATIVE | KW_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 $$=$2;}
-CLASS_DECLARATION : MODIFIERS "class" T_IDENTIFIER
+CLASS_DECLARATION : MAYBE_MODIFIERS "class" T_IDENTIFIER
EXTENDS IMPLEMENTS_LIST
- '{' {startclass($1,$3,$4,$5, 0);}
- MAYBE_DECLARATION_LIST
- '}' {endclass();}
+ '{' {PASS12 startclass($1,$3,$4,$5);}
+ MAYBE_CLASS_BODY
+ '}' {PASS12 endclass();$$=0;}
-INTERFACE_DECLARATION : MODIFIERS "interface" T_IDENTIFIER
+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_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_PACKAGEINTERNAL|FLAG_PROTECTED)) {
+ syntaxerror("invalid method modifiers: interface methods always need to be public");
+ }
+ startfunction(0,$1,$3,$4,&$6,$8);
+ endfunction(0,$1,$3,$4,&$6,$8, 0);
+ list_deep_free($6.list);
+}
/* ------------ classes and interfaces (body, slots ) ------- */
VARCONST: "var" | "const"
-SLOT_DECLARATION: MODIFIERS VARCONST T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION {
- memberinfo_t* info = memberinfo_register(state->clsinfo, $3->text, MEMBER_SLOT);
- info->type = $4;
+SLOT_DECLARATION: MAYBE_MODIFIERS VARCONST T_IDENTIFIER {setstaticfunction($1);} MAYBETYPE MAYBEEXPRESSION {
+ int flags = $1;
+ U8 access = flags2access($1);
- trait_t*t=0;
- if($4) {
- MULTINAME(m, $4);
- t=abc_class_slot(state->cls, $3->text, &m);
+ varinfo_t* info = 0;
+ if(state->cls) {
+ memberinfo_t*i = registry_findmember(state->cls->info, $3, 1);
+ if(i) {
+ check_override(i, flags);
+ }
+ info = varinfo_register_onclass(state->cls->info, access, $3);
} else {
- t=abc_class_slot(state->cls, $3->text, 0);
+ slotinfo_t*i = registry_find(state->package, $3);
+ if(i) {
+ syntaxerror("package %s already contains '%s'", state->package, $3);
+ }
+ info = varinfo_register_global(access, state->package, $3);
}
- if($2->type==KW_CONST) {
- t->kind= TRAIT_CONST;
+
+ 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);
}
info->slot = t->slot_id;
- if($5.c && !is_pushundefined($5.c)) {
- code_t*c = 0;
+
+ /* 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);
- //c = abc_setproperty(c, $3->text);
- state->cls_init = code_append(state->cls_init, c);
}
+
+ *code = code_append(*code, c);
+
+ if($2==KW_CONST) {
+ t->kind= TRAIT_CONST;
+ }
+
+ $$=0;
+ setstaticfunction(0);
+}
+
+/* ------------ constants -------------------------------------- */
+
+MAYBESTATICCONSTANT: {$$=0;}
+MAYBESTATICCONSTANT: '=' STATICCONSTANT {$$=$2;}
+
+STATICCONSTANT : T_BYTE {$$ = constant_new_int($1);}
+STATICCONSTANT : T_INT {$$ = constant_new_int($1);}
+STATICCONSTANT : T_UINT {$$ = constant_new_uint($1);}
+STATICCONSTANT : T_FLOAT {$$ = constant_new_float($1);}
+STATICCONSTANT : T_STRING {$$ = constant_new_string2($1.str,$1.len);free((char*)$1.str);}
+//STATICCONSTANT : T_NAMESPACE {$$ = 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($$.list, $1);
}
-PARAM: T_IDENTIFIER ':' TYPE {
- $$ = malloc(sizeof(param_t));
- $$->name=$1->text;$$->type = $3;
+
+PARAM: T_IDENTIFIER ':' TYPE MAYBESTATICCONSTANT {
+ PASS12
+ $$ = rfx_calloc(sizeof(param_t));
+ $$->name=$1;
+ $$->type = $3;
+ PASS2
+ $$->value = $4;
}
-PARAM: T_IDENTIFIER {
- $$ = malloc(sizeof(param_t));
- $$->name=$1->text;$$->type = TYPE_ANY;
+PARAM: T_IDENTIFIER MAYBESTATICCONSTANT {
+ PASS12
+ $$ = rfx_calloc(sizeof(param_t));
+ $$->name=$1;
+ $$->type = TYPE_ANY;
+ PASS2
+ $$->value = $2;
}
+GETSET : "get"
+ | "set"
+ | {PASS12 $$=0;}
-FUNCTION_DECLARATION: MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
- MAYBETYPE '{' {startfunction(0,$1,$3,$4,&$6,$8)} MAYBECODE '}'
+FUNCTION_DECLARATION: MAYBE_MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
+ MAYBETYPE '{' {PASS12 startfunction(0,$1,$3,$4,&$6,$8);} MAYBECODE '}'
{
- if(!state->m) syntaxerror("internal error: undefined function");
- endfunction($11);
-}
+ PASS1
+ endfunction(0,$1,$3,$4,&$6,0,0);
+ PASS2
+ if(!state->method->info) syntaxerror("internal error");
+
+ code_t*c = method_header(state->method);
+ c = wrap_function(c, 0, $11);
-/* ------------- package + class ids --------------- */
+ endfunction(0,$1,$3,$4,&$6,$8,c);
+ PASS12
+ list_deep_free($6.list);
+ $$=0;
+}
-CLASS: T_IDENTIFIER {
+MAYBE_IDENTIFIER: T_IDENTIFIER
+MAYBE_IDENTIFIER: {PASS12 $$=0;}
+INNERFUNCTION: "function" MAYBE_IDENTIFIER '(' MAYBE_PARAM_LIST ')' MAYBETYPE
+ '{' {PASS12 innerfunction($2,&$4,$6);} MAYBECODE '}'
+{
+ PASS1
+ endfunction(0,0,0,$2,&$4,0,0);
+ PASS2
+ methodinfo_t*f = state->method->info;
+ if(!f || !f->kind) syntaxerror("internal error");
+
+ code_t*c = method_header(state->method);
+ c = wrap_function(c, 0, $9);
- /* try current package */
- $$ = registry_findclass(state->package, $1->text);
+ int index = state->method->var_index;
+ endfunction(0,0,0,$2,&$4,$6,c);
+
+ $$.c = abc_getlocal(0, index);
+ $$.t = TYPE_FUNCTION(f);
- /* try explicit imports */
- dictentry_t* e = dict_get_slot(state->imports, $1->text);
- while(e) {
- if($$)
- break;
- if(!strcmp(e->key, $1->text)) {
- $$ = (classinfo_t*)e->data;
- }
- e = e->next;
- }
+ PASS12 list_deep_free($4.list);
+}
- /* try package.* imports */
- import_list_t*l = state->wildcard_imports;
- while(l) {
- if($$)
- break;
- //printf("does package %s contain a class %s?\n", l->import->package, $1->text);
- $$ = registry_findclass(l->import->package, $1->text);
- l = l->next;
- }
- /* try global package */
- if(!$$) {
- $$ = registry_findclass("", $1->text);
- }
+/* ------------- package + class ids --------------- */
- if(!$$) syntaxerror("Could not find class %s\n", $1->text);
+CLASS: T_IDENTIFIER {
+ 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 {
- $$ = registry_findclass($1->text, $3->text);
- if(!$$) syntaxerror("Couldn't find class %s.%s\n", $1->text, $3->text);
+ 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
+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 : CLASS_SPEC {$$=$1;}
+ | '*' {$$=registry_getanytype();}
+ | "void" {$$=registry_getanytype();}
+ /*
+ | "String" {$$=registry_getstringclass();}
+ | "int" {$$=registry_getintclass();}
+ | "uint" {$$=registry_getuintclass();}
+ | "Boolean" {$$=registry_getbooleanclass();}
+ | "Number" {$$=registry_getnumberclass();}
+ */
+
+MAYBETYPE: ':' TYPE {$$=$2;}
+MAYBETYPE: {$$=0;}
-/* ----------function calls, constructor calls ------ */
+/* ----------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);
- $$.c = code_new();
+MAYBE_EXPRESSION_LIST : EXPRESSION_LIST_AND_COMMA
- /* TODO: why do we have to *find* our own classes? */
- $$.c = abc_findpropstrict2($$.c, &m);
+EXPRESSION_LIST : NONCOMMAEXPRESSION {$$.len=1;
+ $$.cc = $1.c;
+ }
- typedcode_list_t*l = $3;
- int len = 0;
- while(l) {
- $$.c = code_append($$.c, l->typedcode->c); // push parameters on stack
- l = l->next;
- len ++;
+EXPRESSION_LIST_AND_COMMA: EXPRESSION_LIST ',' {$$ = $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 = code_append($$.c, paramcode);
+ $$.c = abc_construct($$.c, $4.len);
+ }
+
+ $$.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;
}
- $$.c = abc_constructprop2($$.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]);
- } else if($$.c->opcode == OPCODE_GETSLOT) {
+ multiname_t*name = $$.c->data[0];$$.c->data[0]=0;
+ $$.c = code_cutlast($$.c);
+ $$.c = code_append($$.c, paramcode);
+ $$.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, $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($$.c, name, $3.len);
+ multiname_destroy(name);
} else {
- code_dump($$.c, 0, 0, "", stdout);
- syntaxerror("Object is not callable");
+ $$.c = abc_getglobalscope($$.c);
+ $$.c = code_append($$.c, paramcode);
+ $$.c = abc_call($$.c, $3.len);
}
-
- $$.c = code_cutlast($$.c);
- $$.c = code_append($$.c, paramcode);
- //$$.c = abc_callmethod($$.c, m, len); //#1051 illegal early access binding
- $$.c = abc_callproperty2($$.c, name, len);
- memberinfo_t*f = 0;
- if(TYPE_IS_FUNCTION($1.t) &&
- (f = registry_findmember($1.t, "__funcptr__"))) {
- $$.t = f->return_type;
+ if(TYPE_IS_FUNCTION($1.t) && $1.t->data) {
+ $$.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 = code_cutlast($$.c);
+ }
+ multiname_t*name = 0;
+ if($$.c->opcode == OPCODE_GETPROPERTY) {
+ $$.c->opcode = OPCODE_DELETEPROPERTY;
+ } else if($$.c->opcode == OPCODE_GETSLOT) {
+ int slot = (int)(ptroff_t)$$.c->data[0];
+ multiname_t*name = traits_find_slotid(state->cls->abc->traits,slot)->name;
+ $$.c = code_cutlast($$.c);
+ $$.c = abc_deleteproperty2($$.c, name);
+ } else {
+ $$.c = abc_getlocal_0($$.c);
+ MULTINAME_LATE(m, $2.t?$2.t->access:ACCESS_PACKAGE, "");
+ $$.c = abc_deleteproperty2($$.c, &m);
+ }
+ $$.t = TYPE_BOOLEAN;
+}
+
RETURN: "return" %prec prec_none {
$$ = abc_returnvoid(0);
}
$$ = $2.c;
$$ = abc_returnvalue($$);
}
+
// ----------------------- expression types -------------------------------------
-NONCOMMAEXPRESSION : E %prec prec_belowminus {$$=$1;}
-EXPRESSION : E %prec prec_belowminus {$$ = $1;}
-EXPRESSION : EXPRESSION ',' E %prec prec_belowminus {
+NONCOMMAEXPRESSION : E %prec below_minus {$$=$1;}
+EXPRESSION : E %prec below_minus {$$ = $1;}
+EXPRESSION : EXPRESSION ',' E %prec below_minus {
$$.c = $1.c;
$$.c = cut_last_push($$.c);
$$.c = code_append($$.c,$3.c);
$$.t = $3.t;
}
-VOIDEXPRESSION : EXPRESSION %prec prec_belowminus {$$=cut_last_push($1.c);}
+VOIDEXPRESSION : EXPRESSION %prec below_minus {
+ $$=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;}
-E : T_REGEXP {$$.c = abc_pushundefined(0); /* FIXME */
- $$.t = TYPE_ANY;
- }
+//V : DELETE {$$ = $1.c;}
+E : DELETE {$$ = $1;}
+
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 {$$.c = abc_pushbyte(0, $1);
+ //MULTINAME(m, registry_getintclass());
+ //$$.c = abc_coerce2($$.c, &m); // FIXME
+ $$.t = TYPE_INT;
+ }
+CONSTANT : T_SHORT {$$.c = abc_pushshort(0, $1);
+ $$.t = TYPE_INT;
+ }
+CONSTANT : T_INT {$$.c = abc_pushint(0, $1);
+ $$.t = TYPE_INT;
+ }
+CONSTANT : T_UINT {$$.c = abc_pushuint(0, $1);
+ $$.t = TYPE_UINT;
+ }
+CONSTANT : T_FLOAT {$$.c = abc_pushdouble(0, $1);
+ $$.t = TYPE_FLOAT;
+ }
+CONSTANT : T_STRING {$$.c = abc_pushstring2(0, &$1);free((char*)$1.str);
+ $$.t = TYPE_STRING;
+ }
+CONSTANT : "undefined" {$$.c = abc_pushundefined(0);
+ $$.t = TYPE_ANY;
+ }
+CONSTANT : "true" {$$.c = abc_pushtrue(0);
+ $$.t = TYPE_BOOLEAN;
+ }
+CONSTANT : "false" {$$.c = abc_pushfalse(0);
+ $$.t = TYPE_BOOLEAN;
+ }
+CONSTANT : "null" {$$.c = abc_pushnull(0);
+ $$.t = TYPE_NULL;
+ }
+
E : E '<' E {$$.c = code_append($1.c,$3.c);$$.c = abc_greaterequals($$.c);$$.c=abc_not($$.c);
$$.t = TYPE_BOOLEAN;
}
}
E : E "===" E {$$.c = code_append($1.c,$3.c);$$.c = abc_strictequals($$.c);
$$.t = TYPE_BOOLEAN;
+ }
+E : E "!==" E {$$.c = code_append($1.c,$3.c);$$.c = abc_strictequals($$.c);$$.c = abc_not($$.c);
+ $$.t = TYPE_BOOLEAN;
}
E : E "!=" E {$$.c = code_append($1.c,$3.c);$$.c = abc_equals($$.c);$$.c = abc_not($$.c);
$$.t = TYPE_BOOLEAN;
code_t*label = $$.c = abc_label($$.c);
jmp->branch = label;
}
-E : E "&&" E {$$.t = join_types($1.t, $3.t, 'A');
+E : E "&&" E {
+ $$.t = join_types($1.t, $3.t, 'A');
+ /*printf("%08x:\n",$1.t);
+ code_dump($1.c, 0, 0, "", stdout);
+ printf("%08x:\n",$3.t);
+ code_dump($3.c, 0, 0, "", stdout);
+ printf("joining %08x and %08x to %08x\n", $1.t, $3.t, $$.t);*/
$$.c = $1.c;
$$.c = converttype($$.c, $1.t, $$.t);
$$.c = abc_dup($$.c);
$$.t = TYPE_BOOLEAN;
}
-E : E '-' E
-E : E '/' E
-E : E '+' E {$$.c = code_append($1.c,$3.c);$$.c = abc_add($$.c);$$.c=abc_coerce_a($$.c);
- $$.t = join_types($1.t, $3.t, '+');
+E : '~' E {$$.c=$2.c;
+ $$.c = abc_bitnot($$.c);
+ $$.t = TYPE_INT;
+ }
+
+E : E '&' E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_bitand($$.c);
+ $$.t = TYPE_INT;
+ }
+
+E : E '^' E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_bitxor($$.c);
+ $$.t = TYPE_INT;
}
-E : E '%' E {$$.c = code_append($1.c,$3.c);$$.c = abc_modulo($$.c);$$.c=abc_coerce_a($$.c);
- $$.t = join_types($1.t, $3.t, '%');
+
+E : E '|' E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_bitor($$.c);
+ $$.t = TYPE_INT;
+ }
+
+E : E ">>" E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_rshift($$.c);
+ $$.t = TYPE_INT;
}
-E : E '*' E {$$.c = code_append($1.c,$3.c);$$.c = abc_multiply($$.c);$$.c=abc_coerce_a($$.c);
- $$.t = join_types($1.t, $3.t, '*');
+E : E ">>>" E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_urshift($$.c);
+ $$.t = TYPE_INT;
}
+E : E "<<" E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_lshift($$.c);
+ $$.t = TYPE_INT;
+ }
+
+E : E '/' E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_divide($$.c);
+ $$.t = TYPE_NUMBER;
+ }
+E : E '%' E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_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 {$$.c = code_append($1.c,$3.c);
+ if(BOTH_INT($1.t,$3.t)) {
+ $$.c = abc_multiply_i($$.c);
+ $$.t = TYPE_INT;
+ } else {
+ $$.c = abc_multiply($$.c);
+ $$.t = TYPE_NUMBER;
+ }
+ }
+
+E : E "in" E {$$.c = code_append($1.c,$3.c);
+ $$.c = abc_in($$.c);
+ $$.t = TYPE_BOOLEAN;
+ }
+
+E : E "as" E {char use_astype=0; // flash player's astype works differently than astypelate
+ if(use_astype && TYPE_IS_CLASS($3.t) && $3.t->data) {
+ MULTINAME(m, (classinfo_t*)($3.t->data));
+ $$.c = abc_astype2($1.c, &m);
+ $$.t = $3.t->data;
+ } else {
+ $$.c = code_append($1.c, $3.c);
+ $$.c = abc_astypelate($$.c);
+ $$.t = TYPE_ANY;
+ }
+ }
-E : E "as" E
-E : E "is" E
-E : '(' E ')' {$$=$2;}
-E : '-' E {$$=$2;}
+E : E "instanceof" E
+ {$$.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);
+ $$.t = TYPE_BOOLEAN;
+ }
+
+E : "typeof" '(' E ')' {
+ $$.c = $3.c;
+ $$.c = abc_typeof($$.c);
+ $$.t = TYPE_STRING;
+ }
+
+E : "void" E {
+ $$.c = cut_last_push($2.c);
+ $$.c = abc_pushundefined($$.c);
+ $$.t = TYPE_ANY;
+ }
+
+E : "void" { $$.c = abc_pushundefined(0);
+ $$.t = TYPE_ANY;
+ }
+
+E : '(' EXPRESSION ')' {$$=$2;} //allow commas in here, too
+
+E : '-' E {
+ $$=$2;
+ if(IS_INT($2.t)) {
+ $$.c=abc_negate_i($$.c);
+ $$.t = TYPE_INT;
+ } else {
+ $$.c=abc_negate($$.c);
+ $$.t = TYPE_NUMBER;
+ }
+}
E : E '[' E ']' {
$$.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.t,$3.t)) {
+ c=abc_multiply_i(c);
+ } else {
+ c=abc_multiply(c);
+ }
+ 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 = abc_modulo($3.c);
+ 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 = abc_lshift($3.c);
+ 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 = abc_rshift($3.c);
+ 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 = abc_urshift($3.c);
+ c=converttype(c, join_types($1.t, $3.t, 'U'), $1.t);
+ $$.c = toreadwrite($1.c, c, 0, 0);
+ $$.t = $1.t;
+ }
+E : E "/=" E {
+ code_t*c = abc_divide($3.c);
+ 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 = 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);
- $$.c = toreadwrite($1.c, c, 0);
+ $$.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);
+ $$.c = toreadwrite($1.c, c, 0, 0);
$$.t = $1.t;
}
E : E '=' E { code_t*c = 0;
c = code_append(c, $3.c);
c = converttype(c, $3.t, $1.t);
- $$.c = toreadwrite($1.c, c, 1);
+ $$.c = toreadwrite($1.c, c, 1, 0);
$$.t = $1.t;
}
-// TODO: use inclocal where appropriate
+E : E '?' E ':' E %prec below_assignment {
+ $$.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($$.c);
+ }
+
E : E "++" { code_t*c = 0;
classinfo_t*type = $1.t;
- if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) {
- c=abc_increment_i(c);
+ if((is_getlocal($1.c) && TYPE_IS_INT($1.t)) || TYPE_IS_NUMBER($1.t)) {
+ int nr = getlocalnr($1.c);
+ code_free($1.c);$1.c=0;
+ if(TYPE_IS_INT($1.t)) {
+ $$.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);
- $$.t = $1.t;
}
+
+// TODO: use inclocal, like with ++
E : E "--" { code_t*c = 0;
classinfo_t*type = $1.t;
if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) {
- c=abc_increment_i(c);
+ c=abc_decrement_i(c);
+ type = TYPE_INT;
} else {
- c=abc_increment(c);
+ c=abc_decrement(c);
type = TYPE_NUMBER;
}
c=converttype(c, type, $1.t);
- $$.c = toreadwrite($1.c, c, 0);
+ $$.c = toreadwrite($1.c, c, 0, 1);
$$.t = $1.t;
}
+E : "++" %prec plusplus_prefix E { code_t*c = 0;
+ classinfo_t*type = $2.t;
+ 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, $2.t);
+ $$.c = toreadwrite($2.c, c, 0, 0);
+ $$.t = $2.t;
+ }
+
+E : "--" %prec minusminus_prefix E { code_t*c = 0;
+ classinfo_t*type = $2.t;
+ if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) {
+ c=abc_decrement_i(c);
+ type = TYPE_INT;
+ } else {
+ c=abc_decrement(c);
+ type = TYPE_NUMBER;
+ }
+ c=converttype(c, type, $2.t);
+ $$.c = toreadwrite($2.c, c, 0, 0);
+ $$.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
{$$.c = $1.c;
- if($$.t) {
- memberinfo_t*f = registry_findmember($$.t, $3->text);
-
- if(f && f->slot) {
+ classinfo_t*t = $1.t;
+ char is_static = 0;
+ if(TYPE_IS_CLASS(t) && t->data) {
+ t = t->data;
+ is_static = 1;
+ }
+ if(t) {
+ memberinfo_t*f = registry_findmember(t, $3, 1);
+ char noslot = 0;
+ if(f && !is_static != !(f->flags&FLAG_STATIC))
+ noslot=1;
+ if(f && f->slot && !noslot) {
$$.c = abc_getslot($$.c, f->slot);
} else {
- namespace_t ns = {$$.t->access, ""}; // needs to be "", not $$.t->package
- multiname_t m = {QNAME, &ns, 0, $3->text};
+ MEMBER_MULTINAME(m, f, $3);
$$.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 {
- namespace_t ns = {ACCESS_PACKAGE, ""};
- multiname_t m = {QNAME, &ns, 0, $3->text};
+ /* 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 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);
$$.t = registry_getanytype();
}
VAR_READ : T_IDENTIFIER {
+ PASS1
+ /* Queue unresolved identifiers for checking against the parent
+ function's variables.
+ We consider everything which is not a local variable "unresolved".
+ This encompasses class names, members of the surrounding class
+ etc. which *correct* because local variables of the parent function
+ would shadow those.
+ */
+ if(state->method->inner && !find_variable(state, $1)) {
+ unknown_variable($1);
+ }
+ PASS2
+
$$.t = 0;
$$.c = 0;
- int i;
+ slotinfo_t*a = 0;
memberinfo_t*f = 0;
- if((i = find_variable($1->text, &$$.t)) >= 0) {
+
+ variable_t*v;
+ /* look at variables */
+ if((v = find_variable(state, $1))) {
// $1 is a local variable
- $$.c = abc_getlocal($$.c, i);
- } else if((f = registry_findmember(state->clsinfo, $1->text))) {
+ $$.c = abc_getlocal($$.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 */
+ 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
- if(f->kind == MEMBER_METHOD) {
+ int var_is_static = (f->flags&FLAG_STATIC);
+
+ if(f->kind == INFOTYPE_METHOD) {
$$.t = TYPE_FUNCTION(f);
} else {
$$.t = f->type;
}
- if(f->slot>0) {
+ 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($$.c, f->slot);
+ break;
} else {
- namespace_t ns = {state->clsinfo->access, ""};
- multiname_t m = {QNAME, &ns, 0, $1->text};
+ namespace_t ns = {f->access, ""};
+ multiname_t m = {QNAME, &ns, 0, $1};
$$.c = abc_getlocal_0($$.c);
$$.c = abc_getproperty2($$.c, &m);
+ break;
}
- } else {
- // let the avm2 resolve $1
- if(strcmp($1->text,"trace"))
- warning("Couldn't resolve %s, doing late binding", $1->text);
- state->late_binding = 1;
+ }
+
+ /* look at actual classes, in the current package and imported */
+ if((a = find_class($1))) {
+ if(a->access == ACCESS_PACKAGEINTERNAL &&
+ strcmp(a->package, state->package) &&
+ strcmp(a->package, internal_filename_package)
+ )
+ syntaxerror("Can't access internal %s %s in package '%s' from package '%s'",
+ infotypename(a),$1, a->package, state->package);
+
+ if(a->kind != INFOTYPE_CLASS) {
+ MULTINAME(m, a);
+ $$.c = abc_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);
+ }
+ break;
+ }
+
+ /* unknown object, let the avm2 resolve it */
+ 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};
$$.t = 0;
- $$.c = abc_findpropstrict($$.c, $1->text);
- $$.c = abc_getproperty($$.c, $1->text);
+ $$.c = abc_findpropstrict2($$.c, &m);
+ $$.c = abc_getproperty2($$.c, &m);
}
}
+// ----------------- namespaces -------------------------------------------------
-// ------------------------------------------------------------------------------
-
+NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER {$$=0;}
+NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_IDENTIFIER {$$=0;}
+NAMESPACE_DECLARATION : MAYBE_MODIFIERS "namespace" T_IDENTIFIER '=' T_STRING {$$=0;}
-TYPE : QNAME {$$=$1;}
- | '*' {$$=registry_getanytype();}
- | "String" {$$=registry_getstringclass();}
- | "int" {$$=registry_getintclass();}
- | "uint" {$$=registry_getuintclass();}
- | "Boolean" {$$=registry_getbooleanclass();}
- | "Number" {$$=registry_getnumberclass();}
-
-MAYBETYPE: ':' TYPE {$$=$2;}
-MAYBETYPE: {$$=0;}
-
-//FUNCTION_HEADER: NAMESPACE MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
-FUNCTION_HEADER: MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
- MAYBETYPE
-
-NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER
-NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER '=' T_IDENTIFIER
-NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER '=' T_STRING
-
-//NAMESPACE : {$$=empty_token();}
-//NAMESPACE : T_IDENTIFIER {$$=$1};
-
-CONSTANT : T_BYTE {$$.c = abc_pushbyte(0, $1);
- //MULTINAME(m, registry_getintclass());
- //$$.c = abc_coerce2($$.c, &m); // FIXME
- $$.t = TYPE_INT;
- }
-CONSTANT : T_SHORT {$$.c = abc_pushshort(0, $1);
- $$.t = TYPE_INT;
- }
-CONSTANT : T_INT {$$.c = abc_pushint(0, $1);
- $$.t = TYPE_INT;
- }
-CONSTANT : T_UINT {$$.c = abc_pushuint(0, $1);
- $$.t = TYPE_UINT;
- }
-CONSTANT : T_FLOAT {$$.c = abc_pushdouble(0, $1);
- $$.t = TYPE_FLOAT;
- }
-CONSTANT : T_STRING {$$.c = abc_pushstring(0, $1);
- $$.t = TYPE_STRING;
- }
-CONSTANT : KW_TRUE {$$.c = abc_pushtrue(0);
- $$.t = TYPE_BOOLEAN;
- }
-CONSTANT : KW_FALSE {$$.c = abc_pushfalse(0);
- $$.t = TYPE_BOOLEAN;
- }
-CONSTANT : KW_NULL {$$.c = abc_pushnull(0);
- $$.t = TYPE_NULL;
- }
-
-USE_NAMESPACE : "use" "namespace" T_IDENTIFIER
-
-
-//VARIABLE : T_IDENTIFIER
-//VARIABLE : VARIABLE '.' T_IDENTIFIER
-//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants
-//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration
-//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression
-//VARIABLE : VARIABLE '[' EXPRESSION ']' // unqualified expression
-
-GETSET : "get" {$$=$1;}
- | "set" {$$=$1;}
- | {$$=empty_token();}
-
-IDECLARATION : VARIABLE_DECLARATION
-IDECLARATION : FUNCTION_DECLARATION
-
-//IDENTIFIER_LIST : T_IDENTIFIER ',' IDENTIFIER_LIST {extend($3,$1);$$=$3;}
-//IDENTIFIER_LIST : T_IDENTIFIER {$$=empty_token();extend($$,$1);}
-
-QNAME_LIST : QNAME {$$=list_new();list_append($$, $1);}
-QNAME_LIST : QNAME_LIST ',' QNAME {$$=$1;list_append($$,$3);}
-
-
-MAYBE_IDECLARATION_LIST :
-MAYBE_IDECLARATION_LIST : IDECLARATION_LIST
-IDECLARATION_LIST : IDECLARATION
-IDECLARATION_LIST : IDECLARATION_LIST FUNCTION_HEADER
-
-// chapter 14
-// keywords: as break case catch class const continue default delete do else extends false finally for function if implements import in instanceof interface internal is native new null package private protected public return super switch this throw to true try typeof use var void while with
-// syntactic keywords: each get set namespace include dynamic final native override static
+USE_NAMESPACE : "use" "namespace" T_IDENTIFIER {
+ PASS12
+ tokenizer_register_namespace($3);
+ $$=0;
+}
git.asbjorn.biz / swftools.git / blobdiff