#include "abc.h"
#include "pool.h"
#include "files.h"
+#include "common.h"
#include "tokenizer.h"
#include "registry.h"
#include "code.h"
#include "opcodes.h"
+#include "compiler.h"
+#include "expr.h"
+#include "initcode.h"
+
+extern int a3_lex();
%}
%error-verbose
%union tokenunion {
- tokenptr_t token;
+ enum yytokentype token;
- class_signature_t*class_signature;
- class_signature_list_t*class_signature_list;
+ classinfo_t*classinfo;
+ classinfo_list_t*classinfo_list;
+ slotinfo_t*slotinfo;
+ slotinfo_list_t*slotinfo_list;
int number_int;
unsigned int number_uint;
double number_float;
code_t*code;
typedcode_t value;
- typedcode_list_t*value_list;
- writeable_t writeable;
- char*string;
+ //typedcode_list_t*value_list;
+ codeandnumber_t value_list;
+ param_t* param;
+ params_t params;
+ string_t str;
+ char*id;
+ constant_t*constant;
+ for_start_t for_start;
+ abc_exception_t *exception;
+ regexp_t regexp;
+ modifiers_t flags;
+ namespace_decl_t* namespace_decl;
+ node_t*node;
+ 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_BYTE
-%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_NAN "NaN"
+%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
+%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_ANDBY "&="
%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_MINUSMINUS "--"
%token<token> T_PLUSPLUS "++"
%token<token> T_DOTDOT ".."
+%token<token> T_DOTDOTDOT "..."
%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 <number_int> CONDITIONAL_COMPILATION
+%type <for_start> FOR_START
+%type <id> X_IDENTIFIER PACKAGE FOR_IN_INIT MAYBE_IDENTIFIER
+%type <namespace_decl> NAMESPACE_ID
+%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
-%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 SLOT_LIST ONE_SLOT
+%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
-%type <value> MAYBEEXPRESSION
-%type <value> E
-%type <writeable> LH
-%type <value> CONSTANT
-%type <code> FOR IF WHILE MAYBEELSE BREAK
-%type <token> USE_NAMESPACE
-%type <code> ASSIGNMENT FOR_INIT
-%type <token> IMPORT
-%type <class_signature> MAYBETYPE
-%type <token> PACKAGESPEC
+%type <value> EXPRESSION NONCOMMAEXPRESSION
+%type <node> MAYBEEXPRESSION
+%type <value> DELETE
+%type <node> E COMMA_EXPRESSION
+%type <node> VAR_READ
+%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 <code> IMPORT
+%type <classinfo> MAYBETYPE
%type <token> GETSET
-%type <token> PARAM
-%type <token> PARAMS
-%type <token> PARAM_LIST
-%type <token> MODIFIERS
-%type <token> MODIFIER_LIST
-%type <class_signature_list> IMPLEMENTS_LIST
-%type <class_signature> EXTENDS
-%type <class_signature_list> EXTENDS_LIST
-%type <class_signature> PACKAGEANDCLASS
-%type <class_signature_list> PACKAGEANDCLASS_LIST
-%type <token> MULTILEVELIDENTIFIER
-%type <class_signature> TYPE
-%type <token> VAR
+%type <param> PARAM
+%type <params> PARAM_LIST
+%type <params> MAYBE_PARAM_LIST
+%type <flags> MAYBE_MODIFIERS
+%type <flags> MODIFIER_LIST
+%type <flags> MODIFIER
+%type <constant> CONSTANT MAYBECONSTANT
+%type <classinfo_list> IMPLEMENTS_LIST
+%type <classinfo> EXTENDS CLASS_SPEC
+%type <classinfo_list> EXTENDS_LIST
+
+%type <classinfo> CLASS PACKAGEANDCLASS
+%type <classinfo_list> CLASS_SPEC_LIST
+
+%type <classinfo> TYPE
//%type <token> VARIABLE
-%type <value> VAR_READ
+%type <value> MEMBER
%type <value> NEW
-%type <token> X_IDENTIFIER
-%type <token> MODIFIER
-%type <token> PACKAGE
+//%type <token> T_IDENTIFIER
%type <value> FUNCTIONCALL
-%type <value_list> MAYBE_EXPRESSION_LIST EXPRESSION_LIST
+%type <value_list> MAYBE_EXPRESSION_LIST EXPRESSION_LIST EXPRESSION_LIST_AND_COMMA MAYBE_PARAM_VALUES
+%type <value_list> MAYBE_DICT_EXPRPAIR_LIST DICT_EXPRPAIR_LIST WITH_HEAD
+%type <code> DICTLH
-// precendence: from low to high
-// http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00000012.html
+// precedence: from low to high
%left prec_none
-%right '?' ':'
-%nonassoc '='
-%nonassoc "/=" "%="
-%nonassoc "+=" "-="
-%nonassoc ">>="
-%nonassoc "<<="
-%nonassoc ">>>="
-%nonassoc "||"
-%nonassoc "&&"
-%nonassoc '|'
-%nonassoc '^'
-%nonassoc '&'
-%nonassoc "!=" "==" "===" "<=" '<' ">=" '>' // TODO: support "a < b < c" syntax?
-%nonassoc "is"
-%left '-'
-%left '+'
-%left "<<"
-%left ">>>"
-%left ">>"
-%left '%'
-%left '/'
-%left '*'
-%left '!'
-%left '~'
-%left "--" "++"
-%left '['
-%nonassoc "as"
-%left '.' ".." "::"
-%nonassoc T_IDENTIFIER
+
%left below_semicolon
%left ';'
-%nonassoc "else"
+%left ','
+%nonassoc below_assignment // for ?:, contrary to spec
+%right '=' "*=" "/=" "%=" "+=" "-=" "<<=" ">>=" ">>>=" "&=" "^=" "|="
+%right '?' ':'
+%left "||"
+%left "&&"
+%left '|'
+%left '^'
+%nonassoc '&'
+%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 prec_highest
+%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_FLOAT KW_NAN
+%nonassoc "false" "true" "null" "undefined" "super" "function"
+%left above_function
+
%{
-static int yyerror(char*s)
+static int a3_error(char*s)
{
syntaxerror("%s", s);
+ return 0; //make gcc happy
}
-static token_t* concat2(token_t* t1, token_t* t2)
+
+static void parsererror(const char*file, int line, const char*f)
{
- 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)
+ syntaxerror("internal error in %s, %s:%d", f, file, line);
+}
+
+#define parserassert(b) {if(!(b)) parsererror(__FILE__, __LINE__,__func__);}
+
+
+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);
}
typedef struct _import {
- char*path;
+ char*package;
} import_t;
-
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 has_constructor;
+} classstate_t;
+
+struct _methodstate {
+ /* method data */
+ methodinfo_t*info;
+ char has_exceptions;
+ 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;
+ int activation_var;
+
+ abc_method_t*abc;
+ int var_index; // for inner methods
+ int slot_index; // for inner methods
+ char is_a_slot; // for inner methods
+
+ code_t*header;
+
+ code_t*scope_code;
+ abc_exception_list_t*exceptions;
+
+ methodstate_list_t*innerfunctions;
+};
+typedef struct _state {
+ struct _state*old;
+ int level;
+
char*package;
- char*function;
- /* code that needs to be executed at the start of
- a method (like initializing local registers) */
- code_t*initcode;
+ import_list_t*wildcard_imports;
+ dict_t*import_toplevel_packages;
+ dict_t*imports;
- abc_method_body_t*m;
- import_list_t*imports;
-
- /* class data */
- char*classname;
- abc_class_t*cls;
+ namespace_list_t*active_namespace_urls;
+
+ char has_own_imports;
+ char new_vars; // e.g. transition between two functions
+
+ classstate_t*cls;
+ methodstate_t*method;
+
+ char*exception_name;
- array_t*vars;
- int local_var_base;
+ int switch_var;
+
+ dict_t*vars;
+ dict_t*allvars; // also contains variables from sublevels
} state_t;
+typedef struct _global {
+ abc_file_t*file;
+
+ parsedclass_list_t*classes;
+ abc_script_t*classinit;
+
+ abc_script_t*init; //package-level code
+
+ 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 MEMBER_MULTINAME(m,f,n) \
+ multiname_t m;\
+ namespace_t m##_ns;\
+ if(f) { \
+ if((m##_ns.access = ((slotinfo_t*)(f))->access)==ACCESS_NAMESPACE) \
+ m##_ns.name = ((slotinfo_t*)(f))->package; \
+ else \
+ 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; \
+ }
-static state_list_t*state_stack=0;
+/* warning: list length of namespace set is undefined */
+#define MULTINAME_LATE(m, access, package) \
+ namespace_t m##_ns = {access, package}; \
+ namespace_set_t m##_nsset; \
+ namespace_list_t m##_l;m##_l.next = 0; \
+ m##_nsset.namespaces = &m##_l; \
+ m##_nsset = m##_nsset; \
+ m##_l.namespace = &m##_ns; \
+ multiname_t m = {MULTINAMEL, 0, &m##_nsset, 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 dict_t*definitions=0;
+void as3_set_define(const char*c)
+{
+ if(!definitions)
+ definitions = dict_new();
+ if(!dict_contains(definitions,c))
+ dict_put(definitions,c,0);
+}
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;
- state_stack = sl;
+ if(!s->imports) {
+ s->imports = dict_new();
+ }
+ if(!s->import_toplevel_packages) {
+ s->import_toplevel_packages = dict_new();
+ }
state = s;
state->level++;
- state->vars = array_new();
- state->initcode = 0;
+ state->has_own_imports = 0;
+ state->vars = dict_new();
+ state->old = oldstate;
+ state->new_vars = 0;
+
+ trie_remember(active_namespaces);
+
+ if(oldstate)
+ state->active_namespace_urls = list_clone(oldstate->active_namespace_urls);
}
-static void old_state()
-{
- if(!state_stack || !state_stack->next)
- 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);
- }*/
- state->initcode = code_append(state->initcode, oldstate->initcode);
-}
-void initialize_state()
-{
- new_state();
- state->file = abc_file_new();
- state->file->flags &= ~ABCFILE_LAZY;
-
- state->init = abc_initscript(state->file, 0, 0);
- abc_method_body_t*m = state->init->method->body;
- __ getlocal_0(m);
- __ pushscope(m);
- __ findpropstrict(m, "[package]::trace");
- __ pushstring(m, "[entering global init function]");
- __ callpropvoid(m, "[package]::trace", 1);
-}
-void* finalize_state()
+static void state_destroy(state_t*state)
{
- if(state->level!=1) {
- syntaxerror("unexpected end of file");
+ 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) {
+ dict_destroy(state->vars);state->vars=0;
+ }
+ if(state->new_vars && state->allvars) {
+ parserassert(!state->old || state->old->allvars != state->allvars);
+ DICT_ITERATE_DATA(state->allvars, void*, data) {
+ free(data);
+ }
+ dict_destroy(state->allvars);
}
- abc_method_body_t*m = state->init->method->body;
- //__ popscope(m);
- __ findpropstrict(m, "[package]::trace");
- __ pushstring(m, "[leaving global init function]");
- __ callpropvoid(m, "[package]::trace", 1);
- __ returnvoid(m);
- return state->file;
+ list_free(state->active_namespace_urls)
+ state->active_namespace_urls = 0;
+
+ free(state);
}
-
-static void startpackage(token_t*t)
-{
- 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;
-}
-static void endpackage()
+static void old_state()
{
- /*printf("leaving package \"%s\"\n", state->package);*/
- old_state();
+ trie_rollback(active_namespaces);
+
+ if(!state || !state->old)
+ syntaxerror("invalid nesting");
+ 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);
}
-char*globalclass=0;
-static void startclass(token_t*modifiers, token_t*name, class_signature_t*extends, class_signature_list_t*implements)
+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->cls) {
- syntaxerror("inner classes now allowed");
+ if(state) {
+ syntaxerror("invalid call to initialize_file during parsing of another file");
}
- new_state();
- state->classname = name->text;
+
+ active_namespaces = trie_new();
- token_list_t*t=0;
- class_signature_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->class_signature->name);
- }
- 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);
- }
+ new_state();
+ state->package = internal_filename_package = strdup(filename);
+ state->allvars = dict_new();
+
+ 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(public&&internal)
- 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) {
- access = ACCESS_PACKAGEINTERNAL; package = state->package;
- } else if(state->package) {
- access = ACCESS_PACKAGE; package = state->package;
+
+ if(as3_pass==1) {
+ state->method = rfx_calloc(sizeof(methodstate_t));
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method);
+ state->method->late_binding = 1; // init scripts use getglobalscope, so we need a getlocal0/pushscope
} else {
- syntaxerror("public classes only allowed inside a package");
+ state->method = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount);
+ if(!state->method)
+ syntaxerror("internal error: skewed tokencount");
+ function_initvars(state->method, 0, 0, 1);
+ global->classinit = abc_initscript(global->file);
+ global->init = abc_initscript(global->file);
}
+}
- if(registry_findclass(package, state->classname)) {
- syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, state->classname);
+void finish_file()
+{
+ if(!state || state->level!=1) {
+ syntaxerror("unexpected end of file in pass %d", as3_pass);
}
- class_signature_t* classname = class_signature_register(access, package, state->classname);
-
- multiname_t*extends2 = sig2mname(extends);
- multiname_t*classname2 = sig2mname(classname);
+ if(as3_pass==2) {
+ dict_del(global->file2token2info, current_filename);
- state->cls = abc_class_new(state->file, classname2, extends2);
- if(final) abc_class_final(state->cls);
- if(sealed) abc_class_sealed(state->cls);
-
- for(mlist=implements;mlist;mlist=mlist->next) {
- MULTINAME(m, mlist->class_signature);
- abc_class_add_interface(state->cls, &m);
+ 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;
}
- /* now write the construction code for this class */
- int slotindex = abc_initscript_addClassTrait(state->init, classname2, state->cls);
+ //free(state->package);state->package=0; // used in registry
+ state_destroy(state);state=0;
+}
- abc_method_body_t*m = state->init->method->body;
- __ getglobalscope(m);
- class_signature_t*s = extends;
+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;
+}
- int count=0;
+void* finish_parser()
+{
+ dict_free_all(global->file2token2info, 1, (void*)dict_destroy);
+ global->token2info=0;
+ initcode_add_classlist(global->classinit, global->classes);
+
+ return global->file;
+}
+
+typedef struct _variable {
+ int index;
+ classinfo_t*type;
+ char init;
+ char is_parameter;
+ methodstate_t*is_inner_method;
+} variable_t;
+
+static variable_t* find_variable(state_t*s, char*name)
+{
+ state_t*top = s;
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);
- m->code = m->code->prev->prev; // invert
- count++;
- }
- /* 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) */
- __ getlex2(m, extends2);
- __ dup(m);
- __ pushscope(m); // we get a Verify Error #1107 if this is not the top scope
- __ newclass(m,state->cls);
- while(count--) {
- __ popscope(m);
- }
- __ setslot(m, slotindex);
-
- /* flash.display.MovieClip handling */
- if(!globalclass && public && class_signature_equals(registry_getMovieClip(),extends)) {
- if(state->package && state->package[0]) {
- globalclass = concat3str(state->package, ".", state->classname);
- } else {
- globalclass = strdup(state->classname);
- }
+ variable_t*v = 0;
+ v = dict_lookup(s->vars, name);
+ if(v) return v;
+ if(s->new_vars) break;
+ s = s->old;
}
+ return dict_lookup(top->allvars, name);
}
-
-static void endclass()
+static variable_t* find_slot(state_t*s, const char*name)
{
- /*printf("leaving class %s\n", state->classname);*/
- old_state();
+ if(s->method && s->method->slots)
+ return dict_lookup(s->method->slots, name);
+ return 0;
}
-static void addimport(token_t*t)
+
+static variable_t* find_variable_safe(state_t*s, char*name)
{
- NEW(import_t,i);
- i->path = t->text;
- list_append(state->imports, i);
+ variable_t* v = find_variable(s, name);
+ if(!v)
+ syntaxerror("undefined variable: %s", name);
+ return v;
}
-static void print_imports()
+
+static char variable_exists(char*name)
{
- import_list_t*l = state->imports;
- while(l) {
- printf(" import %s\n", l->import->path);
- l = l->next;
- }
+ return dict_contains(state->vars, name);
}
-static void startfunction(token_t*ns, token_t*mod, token_t*getset, token_t*name,
- token_t*params, class_signature_t*type)
+
+static code_t*defaultvalue(code_t*c, classinfo_t*type)
{
- token_list_t*t;
- new_state();
- state->function = name->text;
-
- /*printf("entering function %s\n", name->text);
- if(ns)
- printf(" namespace: %s\n", ns->text);
- printf(" getset: %s\n", getset->text);
- printf(" params: ");for(t=params->tokens;t;t=t->next) printf("%s ", t->token->text);printf("\n");
- printf(" mod: ");for(t=mod->tokens;t;t=t->next) printf("%s ", t->token->text);printf("\n");
- if(type)
- printf(" type: %s.%s\n", type->package, type->name);
- print_imports();*/
-
- if(state->m) {
- syntaxerror("not able to start another method scope");
+ 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);
+ syntaxerror("internal error: can't generate default value for * type");
+ } else {
+ c = abc_pushnull(c);
+ MULTINAME(m, type);
+ c = abc_coerce2(c, &m);
}
+ return c;
+}
- multiname_t*type2 = sig2mname(type);
+static int alloc_local()
+{
+ return state->method->variable_count++;
+}
- if(!strcmp(state->classname,name->text)) {
- state->m = abc_class_constructor(state->cls, type2, 0);
- } else {
- state->m = abc_class_method(state->cls, type2, name->text, 0);
+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;
}
- /* state->vars is initialized by state_new */
- array_append(state->vars, "this", 0);
- __ getlocal_0(state->m);
- __ pushscope(state->m);
+ NEW(variable_t, v);
+ v->index = alloc_local();
+ v->type = type;
+ v->init = init;
+
+ if(name) {
+ dict_put(state->vars, name, v);
+ dict_put(state->allvars, name, v);
+ }
- multiname_destroy(type2);
+ return v;
}
-static void endfunction()
+static int new_variable(const char*name, classinfo_t*type, char init, char maybeslot)
{
- /*printf("leaving function %s\n", state->function);*/
- __ returnvoid(state->m);
-
- old_state();
+ return new_variable2(name, type, init, maybeslot)->index;
}
-
-static token_t* empty_token()
+#define TEMPVARNAME "__as3_temp__"
+int gettempvar()
{
- 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;
+ variable_t*v = find_variable(state, TEMPVARNAME);
+ int i;
+ if(v)
+ i = v->index;
+ else
+ i = new_variable(TEMPVARNAME, 0, 0, 0);
+ parserassert(i);
+ return i;
}
-static int find_variable(char*name, class_signature_t**m)
+static code_t* var_block(code_t*body)
{
- 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);
+ 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++;
}
- return i + s->state->local_var_base;
+ e = e->next;
}
- s = s->next;
}
- syntaxerror("undefined variable: %s", name);
-}
-static char variable_exists(char*name)
-{
- return array_contains(state->vars, name);
+
+ if(k) {
+ code_t*x = body;
+ while(x) {
+ if(x->opcode== OPCODE___BREAK__ ||
+ x->opcode== OPCODE___CONTINUE__) {
+ /* link kill code before break/continue */
+ code_t*e = code_dup(k);
+ code_t*s = code_start(e);
+ s->prev = x->prev;
+ if(x->prev) {
+ x->prev->next = s;
+ }
+ e->next = x;
+ x->prev = e;
+ }
+ x = x->prev;
+ }
+ }
+
+ c = code_append(c, body);
+ c = code_append(c, k);
+ return c;
}
-static int new_variable(char*name, class_signature_t*type)
+
+static void unknown_variable(char*name)
{
- return array_append(state->vars, name, type) + state->local_var_base;
+ 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);
}
-code_t* killvars(code_t*c)
+
+static code_t* add_scope_code(code_t*c, methodstate_t*m, char init)
{
- int t;
- for(t=0;t<state->vars->num;t++) {
- class_signature_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(m->uses_slots || (m->late_binding && !m->inner)) { //???? especially inner functions need the pushscope
+ c = abc_getlocal_0(c);
+ c = abc_pushscope(c);
+ }
+ if(m->uses_slots) {
+ /* FIXME: this alloc_local() causes variable indexes to be
+ different in pass2 than in pass1 */
+ if(!m->activation_var)
+ m->activation_var = alloc_local();
+ if(init) {
+ c = abc_newactivation(c);
+ c = abc_dup(c);
+ c = abc_pushscope(c);
+ c = abc_setlocal(c, m->activation_var);
+ } else {
+ c = abc_getlocal(c, m->activation_var);
+ c = abc_pushscope(c);
+ }
}
return c;
}
-class_signature_t*join_types(class_signature_t*type1, class_signature_t*type2, char op)
+static code_t* method_header(methodstate_t*m)
{
- return registry_getanytype(); // FIXME
+ code_t*c = 0;
+
+ c = add_scope_code(c, m, 1);
+
+ 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->slot_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);
+ }
+
+ if(m->slots) {
+ /* all parameters that are used by inner functions
+ need to be copied from local to slot */
+ parserassert(m->activation_var);
+ DICT_ITERATE_ITEMS(m->slots,char*,name,variable_t*,v) {
+ if(v->is_parameter) {
+ c = abc_getlocal(c, m->activation_var);
+ c = abc_getlocal(c, v->index);
+ c = abc_setslot(c, v->index);
+ }
+ }
+ }
+ list_free(m->innerfunctions);
+ m->innerfunctions = 0;
+ return c;
}
-char is_subtype_of(class_signature_t*type, class_signature_t*supertype)
+
+
+static code_t* wrap_function(code_t*c,code_t*header, code_t*body)
{
- return 1; // FIXME
+ 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;
}
-void breakjumpsto(code_t*c, code_t*jump)
+static void startpackage(char*name)
{
- while(c->prev)
- c=c->prev;
- while(c) {
- if(c->opcode == OPCODE_BREAK) {
- c->opcode = OPCODE_JUMP;
- c->branch = jump;
- }
- c = c->next;
- }
+ new_state();
+ state->package = strdup(name);
}
-code_t*converttype(code_t*c, class_signature_t*from, class_signature_t*to)
+static void endpackage()
{
- /* TODO */
- return abc_nop(c);
+ //used e.g. in classinfo_register:
+ //free(state->package);state->package=0;
+ old_state();
}
-code_t*defaultvalue(code_t*c, class_signature_t*type)
+#define FLAG_PUBLIC 256
+#define FLAG_PROTECTED 512
+#define FLAG_PRIVATE 1024
+#define FLAG_PACKAGEINTERNAL 2048
+#define FLAG_NAMESPACE 4096
+
+static namespace_t modifiers2access(modifiers_t*mod)
{
- if(TYPE_IS_INT(type) || TYPE_IS_UINT(type) || TYPE_IS_FLOAT(type)) {
- c = abc_pushbyte(c, 0);
- } else if(TYPE_IS_BOOLEAN(type)) {
- c = abc_pushfalse(c);
+ namespace_t ns;
+ ns.access = 0;
+ ns.name = "";
+ if(mod->flags&FLAG_NAMESPACE) {
+ if(mod->flags&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels and namespaces");
+ ns.access = ACCESS_NAMESPACE;
+ state_t*s = state;
+ const char*url = (const char*)trie_lookup(active_namespaces, mod->ns);
+ if(!url) {
+ /* shouldn't happen- the tokenizer only reports something as a namespace
+ if it was already registered */
+ trie_dump(active_namespaces);
+ syntaxerror("unknown namespace: %s", mod->ns);
+ }
+ ns.name = url;
+ } else if(mod->flags&FLAG_PUBLIC) {
+ if(mod->flags&(FLAG_PRIVATE|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PACKAGE;
+ } else if(mod->flags&FLAG_PRIVATE) {
+ if(mod->flags&(FLAG_PUBLIC|FLAG_PROTECTED|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PRIVATE;
+ } else if(mod->flags&FLAG_PROTECTED) {
+ if(mod->flags&(FLAG_PUBLIC|FLAG_PRIVATE|FLAG_PACKAGEINTERNAL))
+ syntaxerror("invalid combination of access levels");
+ ns.access = ACCESS_PROTECTED;
} else {
- c = abc_pushnull(c);
+ ns.access = ACCESS_PACKAGEINTERNAL;
}
- return c;
+ return ns;
}
+static slotinfo_t* find_class(const char*name);
-%}
+static memberinfo_t* findmember_nsset(classinfo_t*cls, const char*name, char recurse)
+{
+ return registry_findmember_nsset(cls, state->active_namespace_urls, name, recurse);
+}
+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);
+ parserassert(!index);
+ }
-%%
+ if(m->uses_slots) {
+ /* as variables and slots share the same number, make sure
+ that those variable indices are reserved. It's up to the
+ optimizer to later shuffle the variables down to lower
+ indices */
+ m->variable_count = m->uses_slots;
+ }
-/* ------------ code blocks / statements ---------------- */
+ if(params) {
+ param_list_t*p=0;
+ for(p=params->list;p;p=p->next) {
+ variable_t*v = new_variable2(p->param->name, p->param->type, 0, 1);
+ v->is_parameter = 1;
+ }
+ }
-PROGRAM: MAYBECODE
+ 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;
+ m->slot_index = v->index;
+ v->is_inner_method = m;
-MAYBECODE: CODE {$$=$1;}
-MAYBECODE: {$$=code_new();}
+ l = l->next;
+ }
+
+ if(as3_pass==2) {
+ m->scope_code = add_scope_code(m->scope_code, m, 0);
+ }
+
+ if(as3_pass==2 && m->slots) {
+ /* exchange unresolved identifiers with the actual objects */
+ DICT_ITERATE_ITEMS(m->slots, char*, name, variable_t*, v) {
+ if(v->type && v->type->kind == INFOTYPE_UNRESOLVED) {
+ classinfo_t*type = (classinfo_t*)registry_resolve((slotinfo_t*)v->type);
+ if(!type || type->kind != INFOTYPE_CLASS) {
+ syntaxerror("Couldn't find class %s::%s (%s)", v->type->package, v->type->name, name);
+ }
+ v->type = type;
+ }
+ }
+ }
+}
-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: INTERFACE_DECLARATION {/*TODO*/$$=code_new();}
-CODEPIECE: IMPORT {$$=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: IF {$$=$1}
-CODEPIECE: ASSIGNMENT {$$=$1}
-CODEPIECE: NAMESPACE_DECLARATION {/*TODO*/$$=code_new();}
-CODEPIECE: FUNCTION_DECLARATION {/*TODO*/$$=code_new();}
-CODEPIECE: USE_NAMESPACE {/*TODO*/$$=code_new();}
-
-CODEBLOCK : '{' MAYBECODE '}' {$$=$2;}
-CODEBLOCK : CODEPIECE ';' {$$=$1;}
-CODEBLOCK : CODEPIECE %prec below_semicolon {$$=$1;}
+char*as3_globalclass=0;
+static void startclass(modifiers_t* mod, char*classname, classinfo_t*extends, classinfo_list_t*implements)
+{
+ if(state->cls) {
+ syntaxerror("inner classes now allowed");
+ }
-/* ------------ functions --------------------------- */
+ new_state();
+ token_list_t*t=0;
+ classinfo_list_t*mlist=0;
-FUNCTION_DECLARATION: MODIFIERS "function" GETSET T_IDENTIFIER '(' PARAMS ')'
- MAYBETYPE '{' {startfunction(0,$1,$3,$4,$6,$8)} MAYBECODE '}' {
- if(!state->m) syntaxerror("internal error: undefined function");
- state->initcode = abc_nop(state->initcode);
- state->initcode = abc_nop(state->initcode);
- state->initcode = abc_nop(state->initcode);
- state->m->code = code_append(state->initcode, $11);state->initcode=0;
- endfunction()
-}
+ if(mod->flags&~(FLAG_PACKAGEINTERNAL|FLAG_PUBLIC|FLAG_FINAL|FLAG_DYNAMIC|FLAG_INTERFACE))
+ syntaxerror("invalid modifier(s)");
-/* ------------ variables --------------------------- */
+ if((mod->flags&(FLAG_PUBLIC|FLAG_PACKAGEINTERNAL)) == (FLAG_PUBLIC|FLAG_PACKAGEINTERNAL))
+ syntaxerror("public and internal not supported at the same time.");
+
+ //if(!(mod->flags&FLAG_INTERFACE) && !extends) {
+ if(!(mod->flags&FLAG_INTERFACE) && !extends) {
+ // all classes extend object
+ extends = registry_getobjectclass();
+ }
-MAYBEEXPRESSION : '=' EXPRESSION {$$=$2;}
- | {$$.c=abc_pushundefined(0);
- $$.t=TYPE_ANY;
- }
+ /* create the class name, together with the proper attributes */
+ int access=0;
+ char*package=0;
-VAR : "const" | "var"
-VARIABLE_DECLARATION : VAR T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION {
- if(variable_exists($2->text))
- syntaxerror("Variable %s already defined", $2->text);
-
- if(!is_subtype_of($4.t, $3)) {
- syntaxerror("Can't convert %s to %s", $4.t->name,
- $3->name);
+ if(!(mod->flags&FLAG_PUBLIC) && state->package==internal_filename_package) {
+ access = ACCESS_PRIVATE; package = internal_filename_package;
+ } else if(!(mod->flags&FLAG_PUBLIC) && state->package!=internal_filename_package) {
+ access = ACCESS_PACKAGEINTERNAL; package = state->package;
+ } else if(state->package!=internal_filename_package) {
+ access = ACCESS_PACKAGE; package = state->package;
+ } else {
+ syntaxerror("public classes only allowed inside a package");
}
- int index = new_variable($2->text, $3);
-
- if($3) {
- if($4.c->prev || $4.c->opcode != OPCODE_PUSH_UNDEFINED) {
- $$ = $4.c;
- $$ = converttype($$, $4.t, $3);
- $$ = abc_setlocal($$, index);
- } else {
- $$ = defaultvalue(0, $3);
- $$ = abc_setlocal($$, index);
+ if(as3_pass==1) {
+ state->cls = rfx_calloc(sizeof(classstate_t));
+ state->cls->init = rfx_calloc(sizeof(methodstate_t));
+ state->cls->static_init = rfx_calloc(sizeof(methodstate_t));
+ state->cls->static_init->variable_count=1;
+ /* notice: we make no effort to initialize the top variable (local0) here,
+ even though it has special meaning. We just rely on the facat
+ that pass 1 won't do anything with variables */
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->cls);
+
+ /* set current method to constructor- all code within the class-level (except
+ static variable initializations) will be executed during construction time */
+ state->method = state->cls->init;
+
+ if(registry_find(package, classname)) {
+ syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, classname);
}
-
- /* push default value for type on stack */
- state->initcode = defaultvalue(state->initcode, $3);
- state->initcode = abc_setlocal(state->initcode, index);
- } else {
- /* only bother to actually set this variable if its syntax is either
- var x:type;
- or
- var x=expr;
- */
- if($4.c->prev || $4.c->opcode != OPCODE_PUSH_UNDEFINED) {
- $$ = $4.c;
- $$ = abc_coerce_a($$);
- $$ = abc_setlocal($$, index);
- } else {
- $$ = code_new();
+ /* build info struct */
+ int num_interfaces = (list_length(implements));
+ state->cls->info = classinfo_register(access, package, classname, num_interfaces);
+ state->cls->info->flags |= mod->flags & (FLAG_DYNAMIC|FLAG_INTERFACE|FLAG_FINAL);
+ state->cls->info->superclass = extends;
+
+ int pos = 0;
+ classinfo_list_t*l = implements;
+ for(l=implements;l;l=l->next) {
+ state->cls->info->interfaces[pos++] = l->classinfo;
}
}
- /* that's the default for a local register, anyway
- else {
- state->initcode = abc_pushundefined(state->initcode);
- state->initcode = abc_setlocal(state->initcode, index);
- }*/
- printf("variable %s -> %d (%s)\n", $2->text, index, $4.t?$4.t->name:"");
-}
-ASSIGNMENT : T_IDENTIFIER '=' EXPRESSION {
- class_signature_t*type=0;
- int i = find_variable($1->text, &type);
- $$ = $3.c;
- if(!type && $3.t) {
- // convert to "any" type, the register is untyped
- $$ = abc_coerce_a($$);
- } else {
- // TODO: convert ints to strings etc.
- }
- $$ = abc_setlocal($$, i);
-}
+ 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);
+
+ int pos = 0;
+ while(state->cls->info->interfaces[pos]) {
+ if(!(state->cls->info->interfaces[pos]->flags & FLAG_INTERFACE))
+ syntaxerror("'%s' is not an interface",
+ state->cls->info->interfaces[pos]->name);
+ pos++;
+ }
-/* ------------ control flow ------------------------- */
+ /* generate the abc code for this class */
+ MULTINAME(classname2,state->cls->info);
+ multiname_t*extends2 = sig2mname(extends);
+ state->cls->abc = abc_class_new(global->file, &classname2, extends2);
+ multiname_destroy(extends2);
-MAYBEELSE: %prec prec_none {$$ = code_new();}
+ 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);
+ }
+
+ abc_class_protectedNS(state->cls->abc, classname);
+
+ for(mlist=implements;mlist;mlist=mlist->next) {
+ MULTINAME(m, mlist->classinfo);
+ abc_class_add_interface(state->cls->abc, &m);
+ }
+
+ NEW(parsedclass_t,p);
+ p->cls = state->cls->info;
+ p->abc = state->cls->abc;
+ list_append(global->classes, p);
+
+ /* flash.display.MovieClip handling */
+ if(!as3_globalclass && (mod->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);
+ }
+ }
+ }
+}
+
+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();
+}
+
+void check_code_for_break(code_t*c)
+{
+ 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);
+ }
+ if(c->opcode == OPCODE___RETHROW__) {
+ syntaxerror("Unresolved \"rethrow\"");
+ }
+ if(c->opcode == OPCODE___FALLTHROUGH__) {
+ syntaxerror("Unresolved \"fallthrough\"");
+ }
+ if(c->opcode == OPCODE___PUSHPACKAGE__) {
+ char*name = string_cstr(c->data[0]);
+ syntaxerror("Can't reference a package (%s) as such", name);
+ }
+ c=c->prev;
+ }
+}
+
+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);
+
+ /* allow this. it's no issue.
+ 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) && !(flags&FLAG_STATIC) && !(m->flags&FLAG_STATIC)) {
+ if(m->parent && !(m->parent->flags&FLAG_INTERFACE)) {
+ if(m->kind == INFOTYPE_METHOD)
+ syntaxerror("can't override without explicit 'override' declaration");
+ else
+ syntaxerror("can't override '%s'", m->name);
+ }
+ }
+}
+
+static methodinfo_t*registerfunction(enum yytokentype getset, modifiers_t*mod, char*name, params_t*params, classinfo_t*return_type, int slot)
+{
+ methodinfo_t*minfo = 0;
+ namespace_t ns = modifiers2access(mod);
+ if(!state->cls) {
+ //package method
+ minfo = methodinfo_register_global(ns.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, ns.name, name, 0);
+ if(m) {
+ syntaxerror("class already contains a %s '%s'", infotypename((slotinfo_t*)m), m->name);
+ }
+ minfo = methodinfo_register_onclass(state->cls->info, ns.access, ns.name, 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 && !params->list->next) {
+ type = params->list->param->type;
+ } else
+ syntaxerror("setter function needs to take exactly one argument");
+ // not sure wether to look into superclasses here, too
+ minfo = (methodinfo_t*)registry_findmember(state->cls->info, ns.name, name, 1);
+ if(minfo) {
+ if(minfo->kind!=INFOTYPE_VAR)
+ 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;
+
+ /*
+ FIXME: this check needs to be done in pass 2
+
+ if((!minfo->return_type != !type) ||
+ (minfo->return_type && type &&
+ !strcmp(minfo->return_type->name, type->name))) {
+ syntaxerror("different type in getter and setter: %s and %s",
+ minfo->return_type?minfo->return_type->name:"*",
+ type?type->name:"*");
+ }*/
+ } else {
+ minfo = methodinfo_register_onclass(state->cls->info, ns.access, ns.name, name);
+ minfo->kind = INFOTYPE_VAR; //hack
+ minfo->subtype = gs;
+ minfo->return_type = return_type;
+ }
+
+ /* can't assign a slot as getter and setter might have different slots */
+ //minfo->slot = slot;
+ }
+ if(mod->flags&FLAG_FINAL) minfo->flags |= FLAG_FINAL;
+ if(mod->flags&FLAG_STATIC) minfo->flags |= FLAG_STATIC;
+ if(mod->flags&FLAG_OVERRIDE) minfo->flags |= FLAG_OVERRIDE;
+
+ return minfo;
+}
+
+static void innerfunction(char*name, params_t*params, classinfo_t*return_type)
+{
+ //parserassert(state->method && state->method->info);
+
+ methodstate_t*parent_method = state->method;
+
+ if(as3_pass==1) {
+ return_type = 0; // not valid in pass 1
+ }
+
+ new_state();
+ state->new_vars = 1;
+ state->allvars = dict_new();
+
+ if(as3_pass == 1) {
+ state->method = rfx_calloc(sizeof(methodstate_t));
+ state->method->inner = 1;
+ state->method->variable_count = 0;
+ state->method->abc = rfx_calloc(sizeof(abc_method_t));
+
+ NEW(methodinfo_t,minfo);
+ minfo->kind = INFOTYPE_METHOD;
+ minfo->access = ACCESS_PACKAGEINTERNAL;
+ minfo->name = name;
+ state->method->info = minfo;
+
+ if(parent_method)
+ list_append(parent_method->innerfunctions, state->method);
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method);
+
+ function_initvars(state->method, params, 0, 1);
+ }
+
+ if(as3_pass == 2) {
+ state->method = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount);
+ state->method->variable_count = 0;
+ parserassert(state->method);
+
+ state->method->info->return_type = return_type;
+ function_initvars(state->method, params, 0, 1);
+ }
+}
+
+static void startfunction(modifiers_t*mod, enum yytokentype getset, char*name,
+ params_t*params, classinfo_t*return_type)
+{
+ if(state->method && state->method->info) {
+ syntaxerror("not able to start another method scope");
+ }
+ new_state();
+ state->new_vars = 1;
+ state->allvars = dict_new();
+
+ 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
+ }
+ if(state->method->is_constructor)
+ name = "__as3_constructor__";
+
+ state->method->info = registerfunction(getset, mod, name, params, return_type, 0);
+
+ function_initvars(state->method, params, mod->flags, 1);
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, state->method);
+ }
+
+ 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, mod->ns, name, 2);
+ check_override(m, mod->flags);
+ }
+
+ if(state->cls) {
+ state->cls->has_constructor |= state->method->is_constructor;
+ }
+
+ function_initvars(state->method, params, mod->flags, 1);
+ }
+}
+
+static abc_method_t* endfunction(modifiers_t*mod, enum yytokentype getset, char*name,
+ params_t*params, classinfo_t*return_type, code_t*body)
+{
+ if(as3_pass==1) {
+ // store inner methods in variables
+ function_initvars(state->method, 0, 0, 0);
+
+ methodstate_list_t*ml = state->method->innerfunctions;
+
+ dict_t*xvars = dict_new();
+
+ while(ml) {
+ methodstate_t*m = ml->methodstate;
+ parserassert(m->inner);
+ if(m->unresolved_variables) {
+ dict_t*d = m->unresolved_variables;
+ int t;
+ for(t=0;t<d->hashsize;t++) {
+ dictentry_t*l = d->slots[t];
+ while(l) {
+ /* check parent method's variables */
+ variable_t*v;
+ if((v=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(!name) syntaxerror("internal error");
+ 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;
+ parserassert(state->new_vars);
+ dict_destroy(state->allvars);state->allvars = 0;
+ }
+ old_state();
+ return 0;
+ }
+
+ 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 = modifiers2access(mod);
+ multiname_t mname = {QNAME, &mname_ns, 0, name};
+
+ if(mod->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(mod && mod->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);
+
+ /* Seems this works now.
+ if(state->method->exceptions && state->method->uses_slots) {
+ as3_warning("try/catch and activation not supported yet within the same method");
+ }*/
+
+ 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 0;
+}
+
+void breakjumpsto(code_t*c, char*name, code_t*jump)
+{
+ while(c) {
+ if(c->opcode == OPCODE___BREAK__) {
+ 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->prev;
+ }
+}
+
+#define IS_NUMBER_OR_INT(a) (TYPE_IS_INT((a)) || TYPE_IS_UINT((a)) || TYPE_IS_NUMBER((a)))
+
+code_t*converttype(code_t*c, classinfo_t*from, classinfo_t*to)
+{
+ if(from==to)
+ return c;
+ if(!to) {
+ return abc_coerce_a(c);
+ }
+ 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_UINT(from) || TYPE_IS_INT(from)) &&
+ (TYPE_IS_NUMBER(to) || TYPE_IS_UINT(to) || TYPE_IS_INT(to))) {
+ // allow conversion between number types
+ if(TYPE_IS_UINT(to))
+ return abc_convert_u(c);
+ else if(TYPE_IS_INT(to))
+ return abc_convert_i(c);
+ else if(TYPE_IS_NUMBER(to))
+ return abc_convert_d(c);
+ return abc_coerce2(c, &m);
+ }
+
+ if(TYPE_IS_BOOLEAN(to))
+ return abc_convert_b(c);
+ if(TYPE_IS_STRING(to))
+ return abc_convert_s(c);
+ if(TYPE_IS_OBJECT(to))
+ return abc_convert_o(c);
+
+ 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[0]?".":"", from->name,
+ to->package, to->package[0]?".":"", to->name);
+
+ return c;
+}
+/* move to ast.c todo end */
+
+char is_pushundefined(code_t*c)
+{
+ return (c && !c->prev && !c->next && c->opcode == OPCODE_PUSHUNDEFINED);
+}
+
+static const char* get_package_from_name(const char*name)
+{
+ /* try explicit imports */
+ dictentry_t* e = dict_get_slot(state->imports, name);
+ while(e) {
+ if(!strcmp(e->key, name)) {
+ slotinfo_t*c = (slotinfo_t*)e->data;
+ if(c) return c->package;
+ }
+ e = e->next;
+ }
+ return 0;
+}
+static namespace_list_t*get_current_imports()
+{
+ namespace_list_t*searchlist = 0;
+
+ list_append(searchlist, namespace_new_package(state->package));
+
+ import_list_t*l = state->wildcard_imports;
+ while(l) {
+ namespace_t*ns = namespace_new_package(l->import->package);
+ list_append(searchlist, ns);
+ l = l->next;
+ }
+ list_append(searchlist, namespace_new_package(""));
+ list_append(searchlist, namespace_new_package(internal_filename_package));
+ return searchlist;
+}
+
+static slotinfo_t* find_class(const 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;
+}
+typedcode_t push_class(slotinfo_t*a)
+{
+ typedcode_t x;
+ x.c = 0;
+ x.t = 0;
+ 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), a->name, a->package, state->package);
+ }
+
+ if(a->kind != INFOTYPE_CLASS) {
+ MULTINAME(m, a);
+ x.c = abc_findpropstrict2(x.c, &m);
+ x.c = abc_getproperty2(x.c, &m);
+ if(a->kind == INFOTYPE_METHOD) {
+ methodinfo_t*f = (methodinfo_t*)a;
+ x.t = TYPE_FUNCTION(f);
+ } else {
+ varinfo_t*v = (varinfo_t*)a;
+ x.t = v->type;
+ }
+ } else {
+ classinfo_t*c = (classinfo_t*)a;
+ if(c->slot) {
+ x.c = abc_getglobalscope(x.c);
+ x.c = abc_getslot(x.c, c->slot);
+ } else {
+ MULTINAME(m, c);
+ x.c = abc_getlex2(x.c, &m);
+ }
+ x.t = TYPE_CLASS(c);
+ }
+ return x;
+}
+
+
+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("(use lookup) simple=%d > lookup=%d\n", simple_version_cost, lookup_version_cost);
+ return insert_finally_lookup(c, finally, tempvar);
+ } else {
+ //printf("(use simple) simple=%d < lookup=%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 }} if(as3_pass == 1 || as3_pass == 2) {{
+#define PASS12END }} if(as3_pass == 2) {{
+#define PASS_ALWAYS }} {{
+
+%}
+
+%%
+
+/* ------------ code blocks / statements ---------------- */
+
+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 '}' {PASS_ALWAYS as3_pass=$1;}
+ | ';'
+
+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 '}' {PASS_ALWAYS as3_pass=$1;}
+ | ';'
+
+MAYBECODE: CODE {$$=$1;}
+MAYBECODE: {$$=code_new();}
+
+CODE: CODE CODEPIECE {
+ $$=code_append($1,$2);
+}
+CODE: CODEPIECE {$$=$1;}
+
+// code which may appear outside of methods
+CODE_STATEMENT: IMPORT
+CODE_STATEMENT: FOR
+CODE_STATEMENT: FOR_IN
+CODE_STATEMENT: WHILE
+CODE_STATEMENT: DO_WHILE
+CODE_STATEMENT: SWITCH
+CODE_STATEMENT: IF
+CODE_STATEMENT: WITH
+CODE_STATEMENT: TRY
+CODE_STATEMENT: VOIDEXPRESSION
+CODE_STATEMENT: USE_NAMESPACE
+CODE_STATEMENT: NAMESPACE_DECLARATION
+CODE_STATEMENT: '{' CODE '}' {$$=$2;}
+CODE_STATEMENT: '{' '}' {$$=0;}
+
+// code which may appear in methods
+CODEPIECE: ';' {$$=0;}
+CODEPIECE: CODE_STATEMENT
+CODEPIECE: VARIABLE_DECLARATION
+CODEPIECE: BREAK
+CODEPIECE: CONTINUE
+CODEPIECE: RETURN
+CODEPIECE: THROW
+CODEPIECE: CONDITIONAL_COMPILATION '{' CODE '}' {
+ PASS_ALWAYS
+ if(as3_pass) {
+ $$ = $3;
+ } else {
+ $$ = 0;
+ }
+ as3_pass=$1;
+}
+
+//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 {
+ PASS12
+ $$=as3_pass;
+ char*key = concat3($1,"::",$3);
+ if(!definitions || !dict_contains(definitions, key)) {
+ as3_pass=0;
+ }
+ free(key);
+}
+
+/* ------------ variables --------------------------- */
+
+%code {
+ char is_subtype_of(classinfo_t*type, classinfo_t*supertype)
+ {
+ return 1; // FIXME
+ }
+};
+
+MAYBEEXPRESSION : '=' E {$$=$2;}
+ | {$$=mkdummynode();}
+
+VARIABLE_DECLARATION : "var" VARIABLE_LIST {$$=$2;}
+VARIABLE_DECLARATION : "const" VARIABLE_LIST {$$=$2;}
+
+VARIABLE_LIST: ONE_VARIABLE {$$ = $1;}
+VARIABLE_LIST: VARIABLE_LIST ',' ONE_VARIABLE {$$ = code_append($1, $3);}
+
+ONE_VARIABLE: T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION
+{
+PASS12
+ if(variable_exists($1))
+ syntaxerror("Variable %s already defined", $1);
+PASS1
+ new_variable($1, 0, 1, 0);
+PASS2
+
+ char slot = 0;
+ int index = 0;
+ if(state->method->uses_slots) {
+ variable_t* v = find_slot(state, $1);
+ if(v && !v->init) {
+ // this variable is stored in a slot
+ v->init = 1;
+ v->type = $2;
+ slot = 1;
+ index = v->index;
+ }
+ }
+ if(!index) {
+ index = new_variable($1, $2, 1, 0);
+ }
+
+ $$ = slot?abc_getscopeobject(0, 1):0;
+
+ typedcode_t v = node_read($3);
+ if(!is_subtype_of(v.t, $2)) {
+ syntaxerror("Can't convert %s to %s", v.t->name, $2->name);
+ }
+ if($2) {
+ if(v.c->prev || v.c->opcode != OPCODE_PUSHUNDEFINED) {
+ $$ = code_append($$, v.c);
+ $$ = converttype($$, v.t, $2);
+ } else {
+ code_free(v.c);
+ $$ = defaultvalue($$, $2);
+ }
+ } else {
+ if(v.c->prev || v.c->opcode != OPCODE_PUSHUNDEFINED) {
+ $$ = code_append($$, v.c);
+ $$ = abc_coerce_a($$);
+ } else {
+ // don't do anything
+ code_free(v.c);
+ code_free($$);
+ $$ = 0;
+ break;
+ }
+ }
+ if(slot) {
+ $$ = abc_setslot($$, index);
+ } else {
+ $$ = abc_setlocal($$, index);
+ }
+}
+
+/* ------------ control flow ------------------------- */
+
+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
+
+// TODO: why doesn't an %prec above_identifier resolve the r-r conflict here?
+// (I don't see any easy way to revolve this conflict otherwise, as we
+// can't touch VAR_READ without upsetting the precedence about "return")
+FOR_IN_INIT : "var" T_IDENTIFIER MAYBETYPE {
+ PASS1 $$=$2;new_variable($2,0,1,0);
+ PASS2 $$=$2;new_variable($2,$3,1,0);
+}
+FOR_IN_INIT : T_IDENTIFIER {
+ PASS12
+ $$=$1;
+}
+
+FOR_START : T_FOR '(' {PASS12 new_state();$$.name=$1;$$.each=0;}
+FOR_START : T_FOR "each" '(' {PASS12 new_state();$$.name=$1;$$.each=1;}
+
+FOR : FOR_START FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK {
+ if($1.each) syntaxerror("invalid syntax: ; not allowed in for each statement");
+ $$ = code_new();
+ $$ = code_append($$, $2);
+ code_t*loopstart = $$ = abc_label($$);
+ $$ = code_append($$, $4.c);
+ code_t*myif = $$ = abc_iffalse($$, 0);
+ $$ = code_append($$, $8);
+ code_t*cont = $$ = abc_nop($$);
+ $$ = code_append($$, $6);
+ $$ = abc_jump($$, loopstart);
+ code_t*out = $$ = abc_nop($$);
+ breakjumpsto($$, $1.name, out);
+ continuejumpsto($$, $1.name, cont);
+ myif->branch = out;
+
+ $$ = var_block($$);
+ PASS12 old_state();
}
-FOR_INIT : {$$=code_new();}
-FOR_INIT : ASSIGNMENT | VARIABLE_DECLARATION | VOIDEXPRESSION
+FOR_IN : FOR_START FOR_IN_INIT "in" EXPRESSION ')' CODEBLOCK {
+ variable_t*var = find_variable(state, $2);
+ if(!var) {
+ syntaxerror("variable %s not known in this scope", $2);
+ }
-FOR : "for" '(' {new_state();} FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK {
- code_append($$, state->initcode);state->initcode=0;
+ 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_append($$, $4);
code_t*loopstart = $$ = abc_label($$);
- $$ = code_append($$, $6.c);
+
+ $$ = abc_hasnext2($$, array, it);
code_t*myif = $$ = abc_iffalse($$, 0);
- $$ = code_append($$, $10);
- $$ = code_append($$, $8);
+ $$ = 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_label($$);
- breakjumpsto($$, out);
+
+ code_t*out = $$ = abc_nop($$);
+ breakjumpsto($$, $1.name, out);
+ continuejumpsto($$, $1.name, loopstart);
+
myif->branch = out;
- $$ = killvars($$);old_state();
+ $$ = var_block($$);
+
+ 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($$, $1, cont);
+
+ $$ = var_block($$);
+ PASS12 old_state();
+}
+
+DO_WHILE : T_DO {PASS12 new_state();} CODEBLOCK "while" '(' EXPRESSION ')' {
+ $$ = code_new();
+ code_t*loopstart = $$ = abc_label($$);
+ $$ = code_append($$, $3);
+ code_t*cont = $$ = abc_nop($$);
+ $$ = code_append($$, $6.c);
+ $$ = abc_iftrue($$, loopstart);
+ code_t*out = $$ = abc_nop($$);
+ breakjumpsto($$, $1, out);
+ continuejumpsto($$, $1, cont);
+
+ $$ = var_block($$);
+ PASS12 old_state();
+}
+
+BREAK : "break" %prec prec_none {
+ $$ = abc___break__(0, "");
+}
+BREAK : "break" T_IDENTIFIER {
+ $$ = abc___break__(0, $2);
+}
+CONTINUE : "continue" %prec prec_none {
+ $$ = abc___continue__(0, "");
+}
+CONTINUE : "continue" T_IDENTIFIER {
+ $$ = abc___continue__(0, $2);
+}
+
+MAYBE_CASE_LIST : {$$=0;}
+MAYBE_CASE_LIST : CASE_LIST {$$=$1;}
+MAYBE_CASE_LIST : DEFAULT {$$=$1;}
+MAYBE_CASE_LIST : CASE_LIST DEFAULT {$$=code_append($1,$2);}
+CASE_LIST: CASE {$$=$1;}
+CASE_LIST: CASE_LIST CASE {$$=code_append($$,$2);}
+
+CASE: "case" E ':' MAYBECODE {
+ $$ = abc_getlocal(0, state->switch_var);
+ $$ = code_append($$, node_read($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();state->switch_var=alloc_local();} E ')' '{' MAYBE_CASE_LIST '}' {
+ $$ = node_read($4).c;
+ $$ = abc_setlocal($$, state->switch_var);
+ $$ = code_append($$, $7);
+
+ code_t*out = $$ = abc_kill($$, state->switch_var);
+ breakjumpsto($$, $1, out);
+
+ code_t*c = $$,*lastblock=0;
+ while(c) {
+ if(c->opcode == OPCODE_IFNE) {
+ if(!c->next) syntaxerror("internal error in fallthrough handling");
+ lastblock=c->next;
+ } else if(c->opcode == OPCODE___FALLTHROUGH__) {
+ if(lastblock) {
+ c->opcode = OPCODE_JUMP;
+ c->branch = lastblock;
+ } else {
+ /* fall through end of switch */
+ c->opcode = OPCODE_NOP;
+ }
+ }
+ c=c->prev;
+ }
+
+ $$ = var_block($$);
+ PASS12 old_state();
+}
+
+/* ------------ try / catch /finally ---------------- */
+
+CATCH: "catch" '(' T_IDENTIFIER MAYBETYPE ')' {PASS12 new_state();
+ state->exception_name=$3;
+ PASS1 new_variable($3, 0, 0, 0);
+ PASS2 new_variable($3, $4, 0, 0);
+ }
+ '{' MAYBECODE '}' {
+ namespace_t name_ns = {ACCESS_PACKAGE, ""};
+ multiname_t name = {QNAME, &name_ns, 0, $3};
+
+ NEW(abc_exception_t, e)
+ e->exc_type = sig2mname($4);
+ e->var_name = multiname_clone(&name);
+ $$ = e;
+
+ code_t*c = 0;
+ int i = find_variable_safe(state, $3)->index;
+ e->target = c = abc_nop(0);
+ c = abc_setlocal(c, i);
+ c = code_append(c, code_dup(state->method->scope_code));
+ 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();
+ state->method->has_exceptions=1;
+ state->method->late_binding=1;//for invariant scope_code
+ } 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($$);
+ $$ = code_append($$, code_dup(state->method->scope_code));
+ $$ = 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($$);
+ PASS12 old_state();
+}
+
+/* ------------ throw ------------------------------- */
- $$ = killvars($$);old_state();
+THROW : "throw" EXPRESSION {
+ $$=$2.c;
+ $$=abc_throw($$);
+}
+THROW : "throw" %prec prec_none {
+ if(!state->exception_name)
+ syntaxerror("re-throw only possible within a catch block");
+ variable_t*v = find_variable(state, state->exception_name);
+ $$=code_new();
+ $$=abc_getlocal($$, v->index);
+ $$=abc_throw($$);
}
-BREAK : "break" {
- $$ = abc___break__(0);
+/* ------------ with -------------------------------- */
+
+WITH_HEAD : "with" '(' EXPRESSION ')' {
+ new_state();
+ if(state->method->has_exceptions) {
+ int v = alloc_local();
+ state->method->scope_code = abc_getlocal(state->method->scope_code, v);
+ state->method->scope_code = abc_pushwith(state->method->scope_code);
+ $$.number = v;
+ }
+ $$.cc = $3.c;
+}
+WITH : WITH_HEAD CODEBLOCK {
+ /* remove getlocal;pushwith from scope code again */
+ state->method->scope_code = code_cutlast(code_cutlast(state->method->scope_code));
+
+ $$ = $1.cc;
+ if(state->method->has_exceptions) {
+ $$ = abc_dup($$);
+ $$ = abc_setlocal($$, $1.number);
+ }
+ $$ = abc_pushwith($$);
+ $$ = code_append($$, $2);
+ $$ = abc_popscope($$);
+ old_state();
}
/* ------------ packages and imports ---------------- */
-PACKAGE_DECLARATION : "package" MULTILEVELIDENTIFIER '{' {startpackage($2)} MAYBECODE '}' {endpackage()}
-PACKAGE_DECLARATION : "package" '{' {startpackage(0)} MAYBECODE '}' {endpackage()}
+X_IDENTIFIER: T_IDENTIFIER
+ | "package" {PASS12 $$="package";}
+ | T_NAMESPACE {PASS12 $$=$1;}
-IMPORT : "import" PACKAGESPEC {addimport($2);}
+PACKAGE: PACKAGE '.' X_IDENTIFIER {PASS12 $$ = concat3($1,".",$3);free($1);$1=0;}
+PACKAGE: X_IDENTIFIER {PASS12 $$=strdup($1);}
-TYPE : PACKAGEANDCLASS {$$=$1;}
- | '*' {$$=registry_getanytype();}
- | "String" {$$=registry_getstringclass();}
- | "int" {$$=registry_getintclass();}
- | "uint" {$$=registry_getuintclass();}
- | "Boolean" {$$=registry_getbooleanclass();}
- | "Number" {$$=registry_getnumberclass();}
+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;}
-MAYBETYPE: ':' TYPE {$$=$2;}
-MAYBETYPE: {$$=0;}
-
-//FUNCTION_HEADER: NAMESPACE MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
-FUNCTION_HEADER: MODIFIERS "function" GETSET T_IDENTIFIER '(' PARAMS ')'
- 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
-
-
-EXPRESSION : E %prec prec_none /*precendence below '-x'*/ {$$ = $1;}
-VOIDEXPRESSION : E %prec prec_none {$$=$1.c;/*calculate and discard*/$$=abc_pop($$);}
-
-E : CONSTANT
-E : VAR_READ %prec T_IDENTIFIER {$$ = $1;}
-E : NEW {$$.c = abc_pushundefined(0); /* FIXME */
- $$.t = TYPE_ANY;
- }
-E : T_REGEXP {$$.c = abc_pushundefined(0); /* FIXME */
- $$.t = TYPE_ANY;
- }
-E : FUNCTIONCALL
-E : E '<' E {$$.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);$$.c = abc_greaterthan($$.c);
- $$.t = TYPE_BOOLEAN;
+%code {
+ static void state_has_imports()
+ {
+ state->wildcard_imports = list_clone(state->wildcard_imports);
+ state->imports = dict_clone(state->imports);
+ state->has_own_imports = 1;
+ }
+ static void import_toplevel(const char*package)
+ {
+ char* s = strdup(package);
+ while(1) {
+ dict_put(state->import_toplevel_packages, s, 0);
+ char*x = strrchr(s, '.');
+ if(!x)
+ break;
+ *x = 0;
+ }
+ free(s);
+ }
+};
+IMPORT : "import" PACKAGEANDCLASS {
+ PASS12
+ slotinfo_t*s = registry_find($2->package, $2->name);
+ if(!s && as3_pass==1) {// || !(s->flags&FLAG_BUILTIN)) {
+ as3_schedule_class($2->package, $2->name);
+ }
+ classinfo_t*c = $2;
+ if(!c)
+ syntaxerror("Couldn't import class\n");
+ state_has_imports();
+ dict_put(state->imports, c->name, c);
+ import_toplevel(c->package);
+ $$=0;
+}
+IMPORT : "import" PACKAGE '.' '*' {
+ PASS12
+ if(strncmp("flash.", $2, 6) && as3_pass==1) {
+ as3_schedule_package($2);
+ }
+
+ NEW(import_t,i);
+ i->package = $2;
+ state_has_imports();
+ list_append(state->wildcard_imports, i);
+ import_toplevel(i->package);
+ $$=0;
+}
+
+/* ------------ classes and interfaces (header) -------------- */
+
+MAYBE_MODIFIERS : %prec above_function {PASS12 $$.flags=0;$$.ns=0;}
+MAYBE_MODIFIERS : MODIFIER_LIST {PASS12 $$=$1;}
+MODIFIER_LIST : MODIFIER {PASS12 $$=$1;}
+MODIFIER_LIST : MODIFIER_LIST MODIFIER {
+ PASS12
+ $$.flags=$1.flags|$2.flags;
+ if($1.ns && $2.ns) syntaxerror("only one namespace allowed in one declaration");
+ $$.ns=$1.ns?$1.ns:$2.ns;
+
+}
+MODIFIER : KW_PUBLIC {PASS12 $$.flags=FLAG_PUBLIC;$$.ns=0;}
+ | KW_PRIVATE {PASS12 $$.flags=FLAG_PRIVATE;$$.ns=0;}
+ | KW_PROTECTED {PASS12 $$.flags=FLAG_PROTECTED;$$.ns=0;}
+ | KW_STATIC {PASS12 $$.flags=FLAG_STATIC;$$.ns=0;}
+ | KW_DYNAMIC {PASS12 $$.flags=FLAG_DYNAMIC;$$.ns=0;}
+ | KW_FINAL {PASS12 $$.flags=FLAG_FINAL;$$.ns=0;}
+ | KW_OVERRIDE {PASS12 $$.flags=FLAG_OVERRIDE;$$.ns=0;}
+ | KW_NATIVE {PASS12 $$.flags=FLAG_NATIVE;$$.ns=0;}
+ | KW_INTERNAL {PASS12 $$.flags=FLAG_PACKAGEINTERNAL;$$.ns=0;}
+ | T_NAMESPACE {PASS12 $$.flags=FLAG_NAMESPACE;
+ $$.ns=$1;
+ }
+
+EXTENDS : {PASS12 $$=0;}
+EXTENDS : KW_EXTENDS CLASS_SPEC {PASS12 $$=$2;}
+
+EXTENDS_LIST : {PASS12 $$=list_new();}
+EXTENDS_LIST : KW_EXTENDS CLASS_SPEC_LIST {PASS12 $$=$2;}
+
+IMPLEMENTS_LIST : {PASS12 $$=list_new();}
+IMPLEMENTS_LIST : KW_IMPLEMENTS CLASS_SPEC_LIST {PASS12 $$=$2;}
+
+CLASS_DECLARATION : MAYBE_MODIFIERS "class" T_IDENTIFIER
+ EXTENDS IMPLEMENTS_LIST
+ '{' {PASS12 startclass(&$1,$3,$4,$5);}
+ MAYBE_CLASS_BODY
+ '}' {PASS12 endclass();$$=0;}
+
+INTERFACE_DECLARATION : MAYBE_MODIFIERS "interface" T_IDENTIFIER
+ EXTENDS_LIST
+ '{' {PASS12 $1.flags|=FLAG_INTERFACE;
+ startclass(&$1,$3,0,$4);}
+ MAYBE_INTERFACE_BODY
+ '}' {PASS12 endclass();$$=0;}
+
+/* ------------ classes and interfaces (body) -------------- */
+
+MAYBE_CLASS_BODY :
+MAYBE_CLASS_BODY : CLASS_BODY
+CLASS_BODY : CLASS_BODY_ITEM
+CLASS_BODY : CLASS_BODY CLASS_BODY_ITEM
+CLASS_BODY_ITEM : ';'
+CLASS_BODY_ITEM : CONDITIONAL_COMPILATION '{' MAYBE_CLASS_BODY '}' {PASS_ALWAYS as3_pass=$1;}
+CLASS_BODY_ITEM : SLOT_DECLARATION
+CLASS_BODY_ITEM : FUNCTION_DECLARATION
+
+CLASS_BODY_ITEM : CODE_STATEMENT {
+ code_t*c = state->cls->static_init->header;
+ c = code_append(c, $1);
+ state->cls->static_init->header = c;
+}
+
+MAYBE_INTERFACE_BODY :
+MAYBE_INTERFACE_BODY : INTERFACE_BODY
+INTERFACE_BODY : IDECLARATION
+INTERFACE_BODY : INTERFACE_BODY IDECLARATION
+IDECLARATION : ';'
+IDECLARATION : "var" T_IDENTIFIER {
+ syntaxerror("variable declarations not allowed in interfaces");
+}
+IDECLARATION : MAYBE_MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')' MAYBETYPE {
+ PASS12
+ $1.flags |= FLAG_PUBLIC;
+ if($1.flags&(FLAG_PRIVATE|FLAG_PACKAGEINTERNAL|FLAG_PROTECTED)) {
+ syntaxerror("invalid method modifiers: interface methods always need to be public");
+ }
+ startfunction(&$1,$3,$4,&$6,$8);
+ endfunction(&$1,$3,$4,&$6,$8, 0);
+ list_deep_free($6.list);
+}
+
+/* ------------ classes and interfaces (body, slots ) ------- */
+
+%code {
+ static int slotstate_varconst = 0;
+ static modifiers_t*slotstate_flags = 0;
+ static void setslotstate(modifiers_t* flags, int varconst)
+ {
+ slotstate_varconst = varconst;
+ slotstate_flags = flags;
+ if(state->cls) {
+ if(flags && flags->flags&FLAG_STATIC) {
+ state->method = state->cls->static_init;
+ } else {
+ state->method = state->cls->init;
}
-E : E "<=" E {$$.c = code_append($1.c,$3.c);$$.c = abc_greaterthan($$.c);$$.c=abc_not($$.c);
- $$.t = TYPE_BOOLEAN;
- }
-E : E ">=" E {$$.c = code_append($1.c,$3.c);$$.c = abc_greaterequals($$.c);
- $$.t = TYPE_BOOLEAN;
- }
-E : E "==" E {$$.c = code_append($1.c,$3.c);$$.c = abc_equals($$.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);$$.c = abc_equals($$.c);$$.c = abc_not($$.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);
- $$.t = join_types($1.t, $3.t, '+');
+ } else {
+ parserassert(state->method);
+ }
+ }
+};
+
+VARCONST: "var" | "const"
+
+SLOT_DECLARATION: MAYBE_MODIFIERS VARCONST {PASS12 setslotstate(&$1,$2);} SLOT_LIST {PASS12 $$=$4;setslotstate(0, 0);}
+
+SLOT_LIST: ONE_SLOT {PASS12 $$=0;}
+SLOT_LIST: SLOT_LIST ',' ONE_SLOT {PASS12 $$=0;}
+
+ONE_SLOT: T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION
+{
+PASS12
+ int flags = slotstate_flags->flags;
+ namespace_t ns = modifiers2access(slotstate_flags);
+
+ if(as3_pass == 1) {
+
+ varinfo_t* info = 0;
+ if(state->cls) {
+ memberinfo_t*i = registry_findmember(state->cls->info, ns.name, $1, 1);
+ if(i) {
+ check_override(i, flags);
}
-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, '%');
+ info = varinfo_register_onclass(state->cls->info, ns.access, ns.name, $1);
+ } else {
+ slotinfo_t*i = registry_find(state->package, $1);
+ if(i) {
+ syntaxerror("package %s already contains '%s'", state->package, $1);
}
-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, '*');
+ if(ns.name && ns.name[0]) {
+ syntaxerror("namespaces not allowed on package-level variables");
}
+ info = varinfo_register_global(ns.access, state->package, $1);
+ }
-E : E "as" TYPE
-E : E "is" TYPE
-E : '(' E ')' {$$=$2;}
-E : '-' E {$$=$2;}
-
-E : LH "+=" E {$$.c = $1.read;$$.c=code_append($$.c,$3.c);$$.c=abc_add($$.c);
- MULTINAME(m, registry_getintclass());
- $$.c=abc_coerce2($$.c, &m); // FIXME
- $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
- $$.t = $1.type;
- }
-E : LH "-=" E {$$.c = $1.read;$$.c=code_append($$.c,$3.c);$$.c=abc_add($$.c);
- MULTINAME(m, registry_getintclass());
- $$.c=abc_coerce2($$.c, &m); // FIXME
- $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
- $$.t = $1.type;
- }
-
-// TODO: use inclocal where appropriate
-E : LH "++" {$$.c = $1.read;$$.c=abc_increment($$.c);
- MULTINAME(m, registry_getintclass());
- $$.c=abc_coerce2($$.c, &m); //FIXME
- $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
- $$.t = $1.type;
- }
-E : LH "--" {$$.c = $1.read;$$.c=abc_decrement($$.c);
- MULTINAME(m, registry_getintclass());
- $$.c=abc_coerce2($$.c, &m); //FIXME
- $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
- $$.t = $1.type;
+ info->type = $2;
+ info->flags = flags;
+
+ dict_put(global->token2info, (void*)(ptroff_t)as3_tokencount, info);
+ }
+
+ if(as3_pass == 2) {
+ varinfo_t*info = dict_lookup(global->token2info, (void*)(ptroff_t)as3_tokencount);
+
+ /* slot name */
+ multiname_t mname = {QNAME, &ns, 0, $1};
+
+ trait_list_t**traits;
+ code_t**code;
+ if(!state->cls) {
+ // global variable
+ 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($2) {
+ MULTINAME(m, $2);
+ 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;
+
+ constant_t cval = $3->type->eval($3);
+ if(cval.type!=CONSTANT_UNKNOWN) {
+ /* compile time constant */
+ t->value = malloc(sizeof(constant_t));
+ memcpy(t->value, &cval, sizeof(constant_t));
+ info->value = constant_clone(t->value);
+ } else {
+ typedcode_t v = node_read($3);
+ /* initalization code (if needed) */
+ code_t*c = 0;
+ if(v.c && !is_pushundefined(v.c)) {
+ c = abc_getlocal_0(c);
+ c = code_append(c, v.c);
+ c = converttype(c, v.t, $2);
+ c = abc_setslot(c, t->slot_id);
}
+ *code = code_append(*code, c);
+ }
+
+ if(slotstate_varconst==KW_CONST) {
+ t->kind= TRAIT_CONST;
+ info->flags |= FLAG_CONST;
+ }
+ }
-LH: T_IDENTIFIER {
- int i = find_variable($1->text, &$$.type);
- $$.read = abc_getlocal(0, i);
- $$.write = abc_setlocal(0, i);
+ $$=0;
}
-NEW : "new" T_IDENTIFIER {$$.c=0;$$.t=0;/*FIXME*/}
- | "new" T_IDENTIFIER '(' ')' {$$.c=0;$$.t=0;/*FIXME*/}
- | "new" T_IDENTIFIER '(' EXPRESSION_LIST ')' {$$.c=0;$$.t=0;/*FIXME*/}
+/* ------------ constants -------------------------------------- */
-FUNCTIONCALL : T_IDENTIFIER '(' MAYBE_EXPRESSION_LIST ')' {
- /* TODO: use abc_call (for calling local variables),
- abc_callstatic (for calling own methods) */
- $$.c = code_new();
- $$.c = abc_findpropstrict($$.c, $1->text);
- typedcode_list_t*l = $3;
- // push parameters on stack
- int len = 0;
- while(l) {
- $$.c = code_append($$.c, l->typedcode.c);
- l = l->nxt;
- len ++;
- }
- $$.c = abc_callproperty($$.c, $1->text, len);
+MAYBECONSTANT: {$$=0;}
+MAYBECONSTANT: '=' E {
+ $$ = malloc(sizeof(constant_t));
+ *$$ = node_eval($2);
+ if($$->type == CONSTANT_UNKNOWN)
+ syntaxerror("can't evaluate default parameter value (needs to be a compile-time constant)");
+}
+
+//CONSTANT : T_NAMESPACE {$$ = constant_new_namespace($1);}
+CONSTANT : T_INT {$$ = constant_new_int($1);}
+CONSTANT : T_UINT {
+ $$ = constant_new_uint($1);
+}
+CONSTANT : T_FLOAT {$$ = constant_new_float($1);}
+CONSTANT : T_STRING {$$ = constant_new_string2($1.str,$1.len);free((char*)$1.str);}
+CONSTANT : "true" {$$ = constant_new_true($1);}
+CONSTANT : "false" {$$ = constant_new_false($1);}
+CONSTANT : "null" {$$ = constant_new_null($1);}
+CONSTANT : "undefined" {$$ = constant_new_undefined($1);}
+CONSTANT : KW_NAN {$$ = constant_new_float(__builtin_nan(""));}
+
+/*
+CONSTANT : T_IDENTIFIER {
+ if(!strcmp($1, "NaN")) {
+ $$ = constant_new_float(__builtin_nan(""));
+ } else {
+ as3_warning("Couldn't evaluate constant value of %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 MAYBECONSTANT {
+ PASS12
+ $$ = rfx_calloc(sizeof(param_t));
+ $$->name=$1;
+ $$->type = $3;
+ PASS2
+ $$->value = $4;
+}
+PARAM: T_IDENTIFIER MAYBECONSTANT {
+ PASS12
+ $$ = rfx_calloc(sizeof(param_t));
+ $$->name=$1;
+ $$->type = TYPE_ANY;
+ PASS2
+ $$->value = $2;
+}
+GETSET : "get"
+ | "set"
+ | {PASS12 $$=0;}
+
+FUNCTION_DECLARATION: MAYBE_MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
+ MAYBETYPE '{' {PASS12 startfunction(&$1,$3,$4,&$6,$8);} MAYBECODE '}'
+{
+ PASS1
+ endfunction(&$1,$3,$4,&$6,0,0);
+ PASS2
+ if(!state->method->info) syntaxerror("internal error");
+
+ code_t*c = method_header(state->method);
+ c = wrap_function(c, 0, $11);
+
+ endfunction(&$1,$3,$4,&$6,$8,c);
+ PASS12
+ list_deep_free($6.list);
+ $$=0;
+}
+
+MAYBE_IDENTIFIER: T_IDENTIFIER
+MAYBE_IDENTIFIER: {PASS12 $$=0;}
+INNERFUNCTION: "function" MAYBE_IDENTIFIER '(' MAYBE_PARAM_LIST ')' MAYBETYPE
+ '{' {PASS12 innerfunction($2,&$4,$6);} MAYBECODE '}'
+{
+ PASS1
+ endfunction(0,0,$2,&$4,0,0);
+ PASS2
+ methodinfo_t*f = state->method->info;
+ if(!f || !f->kind) syntaxerror("internal error");
+
+ code_t*c = method_header(state->method);
+ c = wrap_function(c, 0, $9);
+
+ int index = state->method->var_index;
+ endfunction(0,0,$2,&$4,$6,c);
+
+ $$.c = abc_getlocal(0, index);
+ $$.t = TYPE_FUNCTION(f);
+
+ PASS12 list_deep_free($4.list);
+}
+
+
+/* ------------- package + class ids --------------- */
+
+CLASS: X_IDENTIFIER {
+ PASS1 NEW(unresolvedinfo_t,c);
+ memset(c, 0, sizeof(*c));
+ c->kind = INFOTYPE_UNRESOLVED;
+ c->name = $1;
+ c->package = get_package_from_name($1);
+ if(!c->package) {
+ c->nsset = get_current_imports();
+ /* make the compiler look for this class in the current directory,
+ just in case: */
+ as3_schedule_class_noerror(state->package, $1);
+ }
+ $$ = (classinfo_t*)c;
+ PASS2
+ slotinfo_t*s = find_class($1);
+ if(!s) syntaxerror("Could not find class/method %s (current package: %s)\n", $1, state->package);
+ $$ = (classinfo_t*)s;
+}
+
+PACKAGEANDCLASS : PACKAGE '.' X_IDENTIFIER {
+ PASS1 NEW(unresolvedinfo_t,c);
+ memset(c, 0, sizeof(*c));
+ c->kind = INFOTYPE_UNRESOLVED;
+ c->package = $1;
+ c->name = $3;
+ $$ = (classinfo_t*)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;
+ $$ = (classinfo_t*)s;
}
-MAYBE_EXPRESSION_LIST : {$$=0;}
+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 {PASS12 $$=$1;}
+ | '*' {PASS12 $$=TYPE_ANY;}
+ | "void" {PASS12 $$=TYPE_ANY;}
+ /*
+ | "String" {$$=registry_getstringclass();}
+ | "int" {$$=registry_getintclass();}
+ | "uint" {$$=registry_getuintclass();}
+ | "Boolean" {$$=registry_getbooleanclass();}
+ | "Number" {$$=registry_getnumberclass();}
+ */
+
+MAYBETYPE: ':' TYPE {PASS12 $$=$2;}
+MAYBETYPE: {PASS12 $$=0;}
+
+/* ----------function calls, delete, constructor calls ------ */
+
+MAYBE_PARAM_VALUES : %prec prec_none {$$.cc=0;$$.number=0;}
+MAYBE_PARAM_VALUES : '(' MAYBE_EXPRESSION_LIST ')' {$$=$2;}
+
+MAYBE_EXPRESSION_LIST : {$$.cc=0;$$.number=0;}
MAYBE_EXPRESSION_LIST : EXPRESSION_LIST
-EXPRESSION_LIST : EXPRESSION {$$=malloc(sizeof(typedcode_list_t));
- $$->nxt = 0;
- $$->typedcode = $1;}
-EXPRESSION_LIST : EXPRESSION_LIST ',' EXPRESSION {$$=malloc(sizeof(typedcode_list_t));
- $$->nxt = $1;
- $$->typedcode = $3;
+MAYBE_EXPRESSION_LIST : EXPRESSION_LIST_AND_COMMA
+
+EXPRESSION_LIST : NONCOMMAEXPRESSION {$$.number=1;
+ $$.cc = $1.c;
}
-VAR_READ : T_IDENTIFIER {
- int i = find_variable($1->text, &$$.t);
- $$.c = abc_getlocal(0, i);
+EXPRESSION_LIST_AND_COMMA: EXPRESSION_LIST ',' {$$ = $1;}
+EXPRESSION_LIST : EXPRESSION_LIST_AND_COMMA NONCOMMAEXPRESSION {
+ $$.number= $1.number+1;
+ $$.cc = code_append($1.cc, $2.c);
+ }
+
+XX : %prec new2
+NEW : "new" E XX MAYBE_PARAM_VALUES {
+ typedcode_t v = node_read($2);
+ $$.c = v.c;
+ if($$.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($$.c, name, $4.number);
+ multiname_destroy(name);
+ } else if($$.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($$.c, name, $4.number);
+ } else {
+ $$.c = code_append($$.c, paramcode);
+ $$.c = abc_construct($$.c, $4.number);
+ }
+
+ $$.t = TYPE_ANY;
+ if(TYPE_IS_CLASS(v.t) && v.t->data) {
+ $$.t = v.t->data;
+ } else {
+ $$.c = abc_coerce_a($$.c);
+ $$.t = TYPE_ANY;
+ }
+}
+
+/* TODO: use abc_call (for calling local variables),
+ abc_callstatic (for calling own methods)
+ call (for closures)
+*/
+FUNCTIONCALL : E '(' MAYBE_EXPRESSION_LIST ')' {
+
+ typedcode_t v = node_read($1);
+ $$.c = v.c;
+ if($$.c->opcode == OPCODE_COERCE_A) {
+ $$.c = code_cutlast($$.c);
+ }
+ code_t*paramcode = $3.cc;
+
+ $$.t = TYPE_ANY;
+ if($$.c->opcode == OPCODE_GETPROPERTY) {
+ multiname_t*name = $$.c->data[0];$$.c->data[0]=0;
+ $$.c = code_cutlast($$.c);
+ $$.c = code_append($$.c, paramcode);
+ $$.c = abc_callproperty2($$.c, name, $3.number);
+ multiname_destroy(name);
+ } else if($$.c->opcode == OPCODE_GETSLOT && $$.c->prev->opcode != OPCODE_GETSCOPEOBJECT) {
+ int slot = (int)(ptroff_t)$$.c->data[0];
+ trait_t*t = traits_find_slotid(state->cls->abc->traits,slot);
+ if(t->kind!=TRAIT_METHOD) {
+ //ok: flash allows to assign closures to members.
+ }
+ multiname_t*name = t->name;
+ $$.c = code_cutlast($$.c);
+ $$.c = code_append($$.c, paramcode);
+ //$$.c = abc_callmethod($$.c, t->method, len); //#1051 illegal early access binding
+ $$.c = abc_callproperty2($$.c, name, $3.number);
+ } else if($$.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.number);
+ multiname_destroy(name);
+ } else {
+ $$.c = abc_getglobalscope($$.c);
+ $$.c = code_append($$.c, paramcode);
+ $$.c = abc_call($$.c, $3.number);
+ }
+
+ if(TYPE_IS_FUNCTION(v.t) && v.t->data) {
+ $$.t = ((methodinfo_t*)(v.t->data))->return_type;
+ } else if(TYPE_IS_CLASS(v.t) && v.t->data) {
+ // calling a class is like a typecast
+ $$.t = (classinfo_t*)v.t->data;
+ } 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.number);
+ $$.c = abc_pushundefined($$.c);
+ $$.t = TYPE_ANY;
+}
+
+DELETE: "delete" E {
+ typedcode_t v = node_read($2);
+ $$.c = v.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($$.c);
+ MULTINAME_LATE(m, v.t?v.t->access:ACCESS_PACKAGE, "");
+ $$.c = abc_deleteproperty2($$.c, &m);
+ }
+ $$.t = TYPE_BOOLEAN;
+}
+
+RETURN: "return" %prec prec_none {
+ $$ = abc_returnvoid(0);
+}
+RETURN: "return" EXPRESSION {
+ $$ = $2.c;
+ $$ = abc_returnvalue($$);
+}
+
+// ----------------------- expression types -------------------------------------
+
+NONCOMMAEXPRESSION : E %prec below_minus {
+ $$ = node_read($1);
+}
+EXPRESSION : COMMA_EXPRESSION {
+ $$ = node_read($1);
+}
+COMMA_EXPRESSION : E %prec below_minus {
+ $$ = mkmultinode(&node_comma, $1);
+}
+COMMA_EXPRESSION : COMMA_EXPRESSION ',' E %prec below_minus {
+ $$ = multinode_extend($1, $3);
+}
+VOIDEXPRESSION : E %prec below_minus {
+ $$ = node_exec($1);
+}
+VOIDEXPRESSION : VOIDEXPRESSION ',' E %prec below_minus {
+ $$ = $1;
+ $$ = code_append($$, node_exec($3));
+}
+
+MAYBE_DICT_EXPRPAIR_LIST : {$$.cc=0;$$.number=0;}
+MAYBE_DICT_EXPRPAIR_LIST : DICT_EXPRPAIR_LIST {$$=$1;}
+
+DICTLH: T_IDENTIFIER {$$=abc_pushstring(0,$1);}
+DICTLH: T_STRING {$$=abc_pushstring2(0,&$1);}
+
+DICT_EXPRPAIR_LIST : DICTLH ':' NONCOMMAEXPRESSION {
+ $$.cc = 0;
+ $$.cc = code_append($$.cc, $1);
+ $$.cc = code_append($$.cc, $3.c);
+ $$.number = 2;
+}
+DICT_EXPRPAIR_LIST : DICT_EXPRPAIR_LIST ',' DICTLH ':' NONCOMMAEXPRESSION {
+ $$.cc = $1.cc;
+ $$.number = $1.number+2;
+ $$.cc = code_append($$.cc, $3);
+ $$.cc = code_append($$.cc, $5.c);
}
-//VARIABLE : T_IDENTIFIER
-//VARIABLE : VARIABLE '.' T_IDENTIFIER
-//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants
-//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration
-//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression
-//VARIABLE : VARIABLE '[' EXPRESSION ']' // unqualified expression
+// ----------------------- expression evaluation -------------------------------------
-// keywords which also may be identifiers
-X_IDENTIFIER : T_IDENTIFIER | KW_PACKAGE
+E : INNERFUNCTION %prec prec_none {$$ = mkcodenode($1);}
+E : MEMBER %prec '.' {$$ = mkcodenode($1);}
+E : NEW {$$ = mkcodenode($1);}
+E : DELETE {$$ = mkcodenode($1);}
+E : FUNCTIONCALL {$$ = mkcodenode($1);}
+E : VAR_READ %prec T_IDENTIFIER {$$ = $1;}
-PACKAGESPEC : PACKAGESPEC '.' PACKAGESPEC {if($1->text[0]=='*') syntaxerror("wildcard in the middle of path");
- $$ = concat3($1,$2,$3);}
-PACKAGESPEC : X_IDENTIFIER {$$=$1;}
-PACKAGESPEC : '*' {$$=$1;}
+E : CONSTANT {
+ $$ = mkconstnode($1);
+}
-GETSET : "get" {$$=$1;}
- | "set" {$$=$1;}
- | {$$=empty_token();}
+/* regexp */
+E : T_REGEXP {
+ typedcode_t v;
+ v.c = 0;
+ namespace_t ns = {ACCESS_PACKAGE, ""};
+ multiname_t m = {QNAME, &ns, 0, "RegExp"};
+ if(!$1.options) {
+ v.c = abc_getlex2(v.c, &m);
+ v.c = abc_pushstring(v.c, $1.pattern);
+ v.c = abc_construct(v.c, 1);
+ } else {
+ v.c = abc_getlex2(v.c, &m);
+ v.c = abc_pushstring(v.c, $1.pattern);
+ v.c = abc_pushstring(v.c, $1.options);
+ v.c = abc_construct(v.c, 2);
+ }
+ v.t = TYPE_REGEXP;
+ $$ = mkcodenode(v);
+}
-CLASS_DECLARATION : MODIFIERS "class" T_IDENTIFIER EXTENDS IMPLEMENTS_LIST '{' {startclass($1,$3,$4,$5);} MAYBE_DECLARATION_LIST '}' {endclass();}
-INTERFACE_DECLARATION : MODIFIERS "interface" T_IDENTIFIER EXTENDS_LIST '{' MAYBE_IDECLARATION_LIST '}'
+/* array */
+E : '[' MAYBE_EXPRESSION_LIST ']' {
+ typedcode_t v;
+ v.c = code_new();
+ v.c = code_append(v.c, $2.cc);
+ v.c = abc_newarray(v.c, $2.number);
+ v.t = registry_getarrayclass();
+ $$ = mkcodenode(v);
+}
-PARAMS: {$$=empty_token();}
-PARAMS: PARAM_LIST {$$=$1;}
-PARAM_LIST: PARAM_LIST ',' PARAM {extend($1,$3);$$=$1;}
-PARAM_LIST: PARAM {$$=empty_token();extend($$,$1);}
-PARAM: T_IDENTIFIER ':' TYPE {$$=$1;}
+/* dictionary */
+E : "{ (dictionary)" MAYBE_DICT_EXPRPAIR_LIST '}' {
+ typedcode_t v;
+ v.c = code_new();
+ v.c = code_append(v.c, $2.cc);
+ v.c = abc_newobject(v.c, $2.number/2);
+ v.t = registry_getobjectclass();
+ $$ = mkcodenode(v);
+}
-MODIFIERS : {$$=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
+E : E '<' E {$$ = mknode2(&node_lt,$1,$3);}
+E : E '>' E {$$ = mknode2(&node_gt,$1,$3);}
+E : E "<=" E {$$ = mknode2(&node_le,$1,$3);}
+E : E ">=" E {$$ = mknode2(&node_ge,$1,$3);}
+E : E "==" E {$$ = mknode2(&node_eqeq,$1,$3);}
+E : E "===" E {$$ = mknode2(&node_eqeqeq,$1,$3);}
+E : E "!==" E {$$ = mknode2(&node_noteqeq,$1,$3);}
+E : E "!=" E {$$ = mknode2(&node_noteq,$1,$3);}
+E : E "||" E {$$ = mknode2(&node_oror,$1,$3);}
+E : E "&&" E {$$ = mknode2(&node_andand,$1,$3);}
+E : '!' E {$$ = mknode1(&node_not, $2);}
+E : '~' E {$$ = mknode1(&node_bitnot, $2);}
+E : E '&' E {$$ = mknode2(&node_bitand, $1, $3);}
+E : E '^' E {$$ = mknode2(&node_bitxor, $1, $3);}
+E : E '|' E {$$ = mknode2(&node_bitor, $1, $3);}
+E : E ">>" E {$$ = mknode2(&node_shr, $1, $3);}
+E : E ">>>" E {$$ = mknode2(&node_ushr, $1, $3);}
+E : E "<<" E {$$ = mknode2(&node_shl, $1, $3);}
+E : E '/' E {$$ = mknode2(&node_div, $1, $3);}
+E : E '%' E {$$ = mknode2(&node_mod, $1, $3);}
+E : E '+' E {$$ = mknode2(&node_plus, $1, $3);}
+E : E '-' E {$$ = mknode2(&node_minus, $1, $3);}
+E : E '*' E {$$ = mknode2(&node_multiply, $1, $3);}
+E : E "in" E {$$ = mknode2(&node_in, $1, $3);}
+E : E "as" E {$$ = mknode2(&node_as, $1, $3);}
+E : E "instanceof" E {$$ = mknode2(&node_instanceof, $1, $3);}
+E : E "is" E {$$ = mknode2(&node_is, $1, $3);}
+E : "typeof" '(' E ')' {$$ = mknode1(&node_typeof, $3);}
+E : "void" E {$$ = mknode1(&node_void, $2);}
+E : "void" { $$ = mkconstnode(constant_new_undefined());}
+E : '(' COMMA_EXPRESSION ')' { $$=$2;}
+E : '-' E {$$ = mknode1(&node_neg, $2);}
+E : E '[' E ']' {$$ = mknode2(&node_arraylookup, $1,$3);}
+E : E "*=" E {$$ = mknode2(&node_muleq, $1, $3);}
+E : E "%=" E {$$ = mknode2(&node_modeq, $1, $3);}
+E : E "<<=" E {$$ = mknode2(&node_shleq, $1, $3);}
+E : E ">>=" E {$$ = mknode2(&node_shreq, $1, $3);}
+E : E ">>>=" E {$$ = mknode2(&node_ushreq, $1, $3);}
+E : E "/=" E { $$ = mknode2(&node_diveq, $1, $3);}
+E : E "|=" E { $$ = mknode2(&node_bitoreq, $1, $3);}
+E : E "^=" E { $$ = mknode2(&node_bitxoreq, $1, $3);}
+E : E "&=" E { $$ = mknode2(&node_bitandeq, $1, $3);}
+E : E "+=" E { $$ = mknode2(&node_pluseq, $1, $3);}
+E : E "-=" E { $$ = mknode2(&node_minuseq, $1, $3);}
+E : E '=' E { $$ = mknode2(&node_assign, $1, $3);}
+E : E '?' E ':' E %prec below_assignment { $$ = mknode3(&node_tenary, $1, $3, $5);}
+
+E : E "++" { $$ = mknode1(&node_rplusplus, $1);}
+E : E "--" { $$ = mknode1(&node_rminusminus, $1);}
+E : "++" %prec plusplus_prefix E {$$ = mknode1(&node_lplusplus, $2); }
+E : "--" %prec minusminus_prefix E {$$ = mknode1(&node_lminusminus, $2); }
+
+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 = findmember_nsset(t, $3, 1);
+ MEMBER_MULTINAME(m, f, $3);
+ typedcode_t v;
+ v.c = 0;
+ v.c = abc_getlocal_0(v.c);
+ v.c = abc_getsuper2(v.c, &m);
+ v.t = slotinfo_gettype((slotinfo_t*)f);
+ $$ = mkcodenode(v);
+ }
+
+E : '@' T_IDENTIFIER {
+ // attribute TODO
+ $$ = mkdummynode();
+ as3_warning("ignored @ operator");
+ }
+
+E : E '.' '@' T_IDENTIFIER {
+ // child attribute TODO
+ $$ = mkdummynode();
+ as3_warning("ignored .@ operator");
+ }
+
+E : E '.' T_IDENTIFIER "::" T_IDENTIFIER {
+ // namespace declaration TODO
+ $$ = mkdummynode();
+ as3_warning("ignored :: operator");
+ }
+
+E : E ".." T_IDENTIFIER {
+ // descendants TODO
+ $$ = mkdummynode();
+ as3_warning("ignored .. operator");
+ }
+
+E : E '.' '(' E ')' {
+ // filter TODO
+ $$ = mkdummynode();
+ as3_warning("ignored .() operator");
+ }
+
+//E : E "::" '[' E ']' {
+// // qualified expression TODO
+// $$.c = abc_pushundefined(0);
+// $$.t = 0;
+// as3_warning("ignored ::[] operator");
+// }
+
+MEMBER : E '.' T_IDENTIFIER {
+ typedcode_t v1 = node_read($1);
+ $$.c = v1.c;
+ classinfo_t*t = v1.t;
+ char is_static = 0;
+ if(TYPE_IS_CLASS(t) && t->data) {
+ t = t->data;
+ is_static = 1;
+ }
+ if(t) {
+ if(t->subtype==INFOTYPE_UNRESOLVED) {
+ syntaxerror("syntaxerror: trying to resolve property '%s' on incomplete object '%s'", $3, t->name);
+ }
+ memberinfo_t*f = findmember_nsset(t, $3, 1);
+ char noslot = 0;
+ if(f && !is_static != !(f->flags&FLAG_STATIC))
+ noslot=1;
+ if(f && f->slot && !noslot) {
+ $$.c = abc_getslot($$.c, f->slot);
+ } else {
+ if(!f) {
+ as3_softwarning("Access of undefined property '%s' in %s", $3, t->name);
+ }
+ MEMBER_MULTINAME(m, f, $3);
+ $$.c = abc_getproperty2($$.c, &m);
+ }
+ /* determine type */
+ $$.t = slotinfo_gettype((slotinfo_t*)f);
+ if(!$$.t)
+ $$.c = abc_coerce_a($$.c);
+
+ } else if(v1.c && v1.c->opcode == OPCODE___PUSHPACKAGE__) {
+ string_t*package = v1.c->data[0];
+ char*package2 = concat3(package->str, ".", $3);
+
+ slotinfo_t*a = registry_find(package->str, $3);
+ if(a) {
+ $$ = push_class(a);
+ } else if(dict_contains(state->import_toplevel_packages, package2) ||
+ registry_ispackage(package2)) {
+ $$.c = v1.c;
+ $$.c->data[0] = string_new4(package2);
+ $$.t = 0;
+ } else {
+ syntaxerror("couldn't resolve %s", package2);
+ }
+ } else {
+ /* when resolving a property on an unknown type, we do know the
+ name of the property (and don't seem to need the package), but
+ we need to make avm2 try out all access modes */
+ as3_warning("Resolving %s on unknown type", $3);
+ multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $3};
+ $$.c = abc_getproperty2($$.c, &m);
+ $$.c = abc_coerce_a($$.c);
+ $$.t = TYPE_ANY;
+ }
+}
-DECLARATION : VARIABLE_DECLARATION
-DECLARATION : FUNCTION_DECLARATION
+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 is *correct* because local variables of the parent function
+ would shadow those.
+ */
+ if(state->method->inner && !find_variable(state, $1)) {
+ unknown_variable($1);
+ }
+
+ /* let the compiler know that it might want to check the current directory/package
+ for this identifier- maybe there's a file $1.as defining $1. */
+ as3_schedule_class_noerror(state->package, $1);
+ PASS2
+
+ typedcode_t o;
+ o.t = 0;
+ o.c = 0;
+ $$ = 0;
+
+ slotinfo_t*a = 0;
+ memberinfo_t*f = 0;
+
+ variable_t*v;
+ /* look at variables */
+ if((v = find_variable(state, $1))) {
+ // $1 is a local variable
+ o.c = abc_getlocal(o.c, v->index);
+ o.t = v->type;
+ $$ = mkcodenode(o);
+ break;
+ }
+ if((v = find_slot(state, $1))) {
+ o.c = abc_getscopeobject(o.c, 1);
+ o.c = abc_getslot(o.c, v->index);
+ o.t = v->type;
+ $$ = mkcodenode(o);
+ break;
+ }
-IDECLARATION : VARIABLE_DECLARATION
-IDECLARATION : FUNCTION_DECLARATION
+ int i_am_static = (state->method && state->method->info)?(state->method->info->flags&FLAG_STATIC):FLAG_STATIC;
+
+ /* look at current class' members */
+ if(!state->method->inner &&
+ state->cls &&
+ (f = findmember_nsset(state->cls->info, $1, 1)))
+ {
+ // $1 is a member or attribute in this class
+ int var_is_static = (f->flags&FLAG_STATIC);
+
+ if(f->kind == INFOTYPE_VAR && (f->flags&FLAG_CONST)) {
+ /* if the variable is a constant (and we know what is evaluates to), we
+ can just use the value itself */
+ varinfo_t*v = (varinfo_t*)f;
+ if(v->value) {
+ $$ = mkconstnode(v->value);
+ break;
+ }
+ }
+
+ if(var_is_static >= i_am_static) {
+ if(f->kind == INFOTYPE_METHOD) {
+ o.t = TYPE_FUNCTION(f);
+ } else {
+ o.t = f->type;
+ }
-IMPLEMENTS_LIST : {$$=list_new();}
-IMPLEMENTS_LIST : KW_IMPLEMENTS PACKAGEANDCLASS_LIST {$$=$2;}
+ 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;
+ o.t = f->type;
+ namespace_t ns = {f->access, f->package};
+ multiname_t m = {QNAME, &ns, 0, $1};
+ o.c = abc_findpropstrict2(o.c, &m);
+ o.c = abc_getproperty2(o.c, &m);
+ $$ = mkcodenode(o);
+ break;
+ } else if(f->slot>0) {
+ o.c = abc_getlocal_0(o.c);
+ o.c = abc_getslot(o.c, f->slot);
+ $$ = mkcodenode(o);
+ break;
+ } else {
+ namespace_t ns = {f->access, f->package};
+ multiname_t m = {QNAME, &ns, 0, $1};
+ o.c = abc_getlocal_0(o.c);
+ o.c = abc_getproperty2(o.c, &m);
+ $$ = mkcodenode(o);
+ break;
+ }
+ }
+ }
+
+ /* look at actual classes, in the current package and imported */
+ if((a = find_class($1))) {
+ o = push_class(a);
+ $$ = mkcodenode(o);
+ break;
+ }
-EXTENDS : {$$=registry_getobjectclass();}
-EXTENDS : KW_EXTENDS PACKAGEANDCLASS {$$=$2;}
+ /* look through package prefixes */
+ if(dict_contains(state->import_toplevel_packages, $1) ||
+ registry_ispackage($1)) {
+ o.c = abc___pushpackage__(o.c, $1);
+ o.t = 0;
+ $$ = mkcodenode(o); //?
+ break;
+ }
-EXTENDS_LIST : {$$=list_new();}
-EXTENDS_LIST : KW_EXTENDS PACKAGEANDCLASS_LIST {$$=$2;}
+ /* unknown object, let the avm2 resolve it */
+ if(1) {
+ //as3_softwarning("Couldn't resolve '%s', doing late binding", $1);
+ as3_warning("Couldn't resolve '%s', doing late binding", $1);
+ state->method->late_binding = 1;
+
+ multiname_t m = {MULTINAME, 0, &nopackage_namespace_set, $1};
+
+ o.t = 0;
+ o.c = abc_findpropstrict2(o.c, &m);
+ o.c = abc_getproperty2(o.c, &m);
+ $$ = mkcodenode(o);
+ break;
+ }
+}
-//IDENTIFIER_LIST : T_IDENTIFIER ',' IDENTIFIER_LIST {extend($3,$1);$$=$3;}
-//IDENTIFIER_LIST : T_IDENTIFIER {$$=empty_token();extend($$,$1);}
+// ----------------- namespaces -------------------------------------------------
-PACKAGEANDCLASS : T_IDENTIFIER {$$ = registry_findclass(state->package, $1->text);}
-PACKAGEANDCLASS : PACKAGE '.' T_IDENTIFIER {$$ = registry_findclass($1->text, $3->text);}
-PACKAGE : X_IDENTIFIER
-PACKAGE : PACKAGE '.' X_IDENTIFIER {$$=$1;extend_s($$,".",$3);}
+NAMESPACE_ID : "namespace" T_IDENTIFIER {
+ PASS12
+ NEW(namespace_decl_t,n);
+ n->name = $2;
+ n->url = $2;
+ $$=n;
+}
+NAMESPACE_ID : "namespace" T_IDENTIFIER '=' T_IDENTIFIER {
+ PASS12
+ NEW(namespace_decl_t,n);
+ n->name = $2;
+ n->url = $4;
+ $$=n;
+}
+NAMESPACE_ID : "namespace" T_IDENTIFIER '=' T_STRING {
+ PASS12
+ NEW(namespace_decl_t,n);
+ n->name = $2;
+ n->url = $4.str;
+ $$=n;
+}
+NAMESPACE_DECLARATION : MAYBE_MODIFIERS NAMESPACE_ID {
+ PASS12
+ trie_put(active_namespaces, $2->name, (void*)$2->url);
+
+ namespace_t access = modifiers2access(&$1);
+ varinfo_t* var = varinfo_register_global(access.access, state->package, $2->name);
+ var->type = TYPE_NAMESPACE;
+ namespace_t ns;
+ ns.access = ACCESS_NAMESPACE;
+ ns.name = $2->url;
+ var->value = constant_new_namespace(&ns);
+
+ $$=0;
+}
-MULTILEVELIDENTIFIER : MULTILEVELIDENTIFIER '.' X_IDENTIFIER {$$=$1;extend_s($$, ".", $3)}
-MULTILEVELIDENTIFIER : T_IDENTIFIER {$$=$1;extend($$,$1)};
+%code {
+ void add_active_url(const char*url)
+ {
+ NEW(namespace_t,n);
+ n->name = url;
+ list_append(state->active_namespace_urls, n);
+ }
+};
-PACKAGEANDCLASS_LIST : PACKAGEANDCLASS {$$=list_new();list_append($$, $1);}
-PACKAGEANDCLASS_LIST : PACKAGEANDCLASS_LIST ',' PACKAGEANDCLASS {$$=$1;list_append($$,$3);}
+USE_NAMESPACE : "use" "namespace" CLASS_SPEC {
+ PASS12
+ const char*url = $3->name;
-MAYBE_DECLARATION_LIST :
-MAYBE_DECLARATION_LIST : DECLARATION_LIST
-DECLARATION_LIST : DECLARATION
-DECLARATION_LIST : DECLARATION_LIST DECLARATION
+ varinfo_t*s = (varinfo_t*)$3;
+ if(s->kind == INFOTYPE_UNRESOLVED) {
+ s = (varinfo_t*)registry_resolve((slotinfo_t*)s);
+ if(!s)
+ syntaxerror("Couldn't resolve namespace %s", $3->name);
+ }
-MAYBE_IDECLARATION_LIST :
-MAYBE_IDECLARATION_LIST : IDECLARATION_LIST
-IDECLARATION_LIST : IDECLARATION
-IDECLARATION_LIST : IDECLARATION_LIST FUNCTION_HEADER
+ if(!s || s->kind != INFOTYPE_VAR)
+ syntaxerror("%s.%s is not a public namespace (%d)", $3->package, $3->name, s?s->kind:-1);
+ if(!s->value || !NS_TYPE(s->value->type))
+ syntaxerror("%s.%s is not a namespace", $3->package, $3->name);
+ url = s->value->ns->name;
-// chapter 14
-// keywords: as break case catch class const continue default delete do else extends false finally for function if implements import in instanceof interface internal is native new null package private protected public return super switch this throw to true try typeof use var void while with
-// syntactic keywords: each get set namespace include dynamic final native override static
+ trie_put(active_namespaces, $3->name, (void*)url);
+ add_active_url(url);
+ $$=0;
+}
git.asbjorn.biz / swftools.git / blobdiff