-//%glr-parser
-//%expect-rr 1
-%error-verbose
+/* parser.lex
-%token T_IDENTIFIER
-%token T_STRING
-%token T_REGEXP
-%token T_DOTDOT ".."
-%token T_COLONCOLON "::"
-%token T_GE ">="
-%token T_LE "<="
-%token T_EQEQ "=="
-%token T_PLUSPLUS "++"
-%token T_MINUSMINUS "--"
-%token T_IMPLEMENTS
-%token T_NAMESPACE
-%token T_PACKAGE
-%token T_PROTECTED
-%token T_PUBLIC
-%token T_PRIVATE
-%token T_UINT
-%token T_USE
-%token T_INTERNAL
-%token T_INT
-%token T_NEW
-%token T_NATIVE
-%token T_FUNCTION
-%token T_FOR
-%token T_CLASS
-%token T_CONST
-%token T_SET
-%token T_STATIC
-%token T_IMPORT
-%token T_INTERFACE
-%token T_NUMBER
-%token T_NULL
-%token T_FALSE
-%token T_TRUE
-%token T_BOOLEAN
-%token T_VAR
-%token T_AS
-%token T_IS
-%token T_DYNAMIC
-%token T_OVERRIDE
-%token T_FINAL
-%token T_GET
-%token T_EXTENDS
-
-
-%token T_EMPTY
-
+ Routines for compiling Flash2 AVM2 ABC Actionscript
+
+ Extension module for the rfxswf library.
+ Part of the swftools package.
+
+ Copyright (c) 2008 Matthias Kramm <kramm@quiss.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
%{
#include <stdlib.h>
#include <stdio.h>
#include "files.h"
#include "tokenizer.h"
#include "registry.h"
+#include "code.h"
+#include "opcodes.h"
+
+%}
+
+//%glr-parser
+//%expect-rr 1
+%error-verbose
+
+%union tokenunion {
+ tokenptr_t token;
+
+ class_signature_t*class_signature;
+ class_signature_list_t*class_signature_list;
+
+ int number_int;
+ unsigned int number_uint;
+ double number_float;
+ code_t*code;
+ typedcode_t value;
+ typedcode_list_t*value_list;
+ param_t* param;
+ param_list_t* param_list;
+ writeable_t writeable;
+ char*string;
+}
+
+
+%token<token> T_IDENTIFIER
+%token<string> T_STRING
+%token<token> 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<token> KW_NAMESPACE "namespace"
+%token<token> KW_PACKAGE "package"
+%token<token> KW_PROTECTED
+%token<token> KW_PUBLIC
+%token<token> KW_PRIVATE
+%token<token> KW_USE "use"
+%token<token> KW_INTERNAL
+%token<token> KW_NEW "new"
+%token<token> KW_NATIVE
+%token<token> KW_FUNCTION "function"
+%token<token> KW_FOR "for"
+%token<token> KW_CLASS "class"
+%token<token> KW_CONST "const"
+%token<token> KW_SET "set"
+%token<token> KW_STATIC
+%token<token> KW_IMPORT "import"
+%token<token> KW_INTERFACE "interface"
+%token<token> KW_NULL
+%token<token> KW_VAR "var"
+%token<token> KW_DYNAMIC
+%token<token> KW_OVERRIDE
+%token<token> KW_FINAL
+%token<token> KW_GET "get"
+%token<token> KW_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_IF "if"
+%token<token> KW_ELSE "else"
+%token<token> KW_BREAK "break"
+%token<token> KW_IS "is"
+%token<token> KW_AS "as"
+
+%token<token> T_EQEQ "=="
+%token<token> T_EQEQEQ "==="
+%token<token> T_NE "!="
+%token<token> T_LE "<="
+%token<token> T_GE ">="
+%token<token> T_DIVBY "/="
+%token<token> T_MODBY "%="
+%token<token> T_PLUSBY "+="
+%token<token> T_MINUSBY "-="
+%token<token> T_SHRBY ">>="
+%token<token> T_SHLBY "<<="
+%token<token> T_USHRBY ">>>="
+%token<token> T_OROR "||"
+%token<token> T_ANDAND "&&"
+%token<token> T_COLONCOLON "::"
+%token<token> T_MINUSMINUS "--"
+%token<token> T_PLUSPLUS "++"
+%token<token> T_DOTDOT ".."
+%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 <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> 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> GETSET
+%type <param> PARAM
+%type <param_list> PARAM_LIST
+%type <param_list> MAYBE_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 <token> VARIABLE
+%type <value> VAR_READ
+%type <value> NEW
+%type <token> X_IDENTIFIER
+%type <token> MODIFIER
+%type <token> PACKAGE
+%type <value> FUNCTIONCALL
+%type <value_list> MAYBE_EXPRESSION_LIST EXPRESSION_LIST MAYBE_PARAM_VALUES
+
+// 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
+
+%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 '('
+
+
+%{
static int yyerror(char*s)
{
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);
+ int l3 = strlen(t3);
+ char*text = malloc(l1+l2+l3+1);
+ memcpy(text , t1, l1);
+ memcpy(text+l1, t2, l2);
+ memcpy(text+l1+l2, t3, l3);
+ text[l1+l2+l3] = 0;
+ return text;
+}
typedef struct _import {
- char*path;
+ char*package;
} import_t;
DECLARE_LIST(import);
char*package;
char*function;
- import_list_t*imports;
+ /* code that needs to be executed at the start of
+ a method (like initializing local registers) */
+ code_t*initcode;
+
+ abc_method_body_t*m;
+
+ import_list_t*wildcard_imports;
+ dict_t*imports;
+ char has_own_imports;
/* class data */
char*classname;
abc_class_t*cls;
+ array_t*vars;
+ int local_var_base;
} state_t;
static state_t* state = 0;
DECLARE_LIST(state);
-static state_list_t*state_stack=0;
-
-static void initialize_state()
-{
- NEW(state_t, s);
- NEW(state_list_t, sl);
- state_stack = sl;
- state = sl->state = s;
+#define MULTINAME(m,x) multiname_t m;namespace_t m##_ns;registry_fill_multiname(&m, &m##_ns, x);
- state->file = abc_file_new();
- state->level = 0;
-
- state->init = abc_initscript(state->file, 0, 0);
- abc_method_body_t*m = state->init->method->body;
- __ getlocal_0(m);
- __ pushscope(m);
-}
-static void finalize_state()
-{
- if(state->level) {
- syntaxerror("unexpected end of file");
- }
- abc_method_body_t*m = state->init->method->body;
- //__ popscope(m);
- __ returnvoid(m);
-}
+static state_list_t*state_stack=0;
static void new_state()
{
NEW(state_t, s);
NEW(state_list_t, sl);
- memcpy(s, state, sizeof(state_t)); //shallow copy
+
+ state_t*oldstate = state;
+ if(state)
+ memcpy(s, state, sizeof(state_t)); //shallow copy
sl->next = state_stack;
sl->state = s;
+ if(oldstate) {
+ s->local_var_base = array_length(oldstate->vars) + oldstate->local_var_base;
+ }
+ if(!s->imports) {
+ s->imports = dict_new();
+ }
state_stack = sl;
state = s;
state->level++;
+ state->vars = array_new();
+ state->initcode = 0;
+ state->has_own_imports = 0;
}
+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 old_state()
{
if(!state_stack || !state_stack->next)
state_stack = state_stack->next;
free(old);
state = state_stack->state;
+ /*if(state->initcode) {
+ printf("residual initcode\n");
+ code_dump(state->initcode, 0, 0, "", stdout);
+ }*/
+ if(oldstate->has_own_imports) {
+ list_free(oldstate->wildcard_imports);
+ dict_destroy(oldstate->imports);oldstate->imports=0;
+ }
+ state->initcode = code_append(state->initcode, oldstate->initcode);
+}
+void initialize_state()
+{
+ 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()
+{
+ if(state->level!=1) {
+ syntaxerror("unexpected end of file");
+ }
+ 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;
}
+
static void startpackage(token_t*t)
{
if(state->package) {
}
new_state();
char*name = t?t->text:"";
- printf("entering package \"%s\"\n", name);
+ /*printf("entering package \"%s\"\n", name);*/
state->package = name;
}
static void endpackage()
{
- printf("leaving package \"%s\"\n", state->package);
+ /*printf("leaving package \"%s\"\n", state->package);*/
old_state();
}
-static void startclass(token_t*modifiers, token_t*name, token_t*extends, token_t*implements)
+char*globalclass=0;
+static void startclass(token_t*modifiers, token_t*name, class_signature_t*extends, class_signature_list_t*implements, char interface)
{
- token_list_t*t;
if(state->cls) {
syntaxerror("inner classes now allowed");
}
new_state();
state->classname = name->text;
- printf("entering class %s\n", name->text);
+
+ 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");
- printf(" extends: %s\n", extends->text);
- printf(" implements (%d): ", list_length(implements->tokens));for(t=implements->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?mlist->class_signature->name:0);
+ }
+ printf("\n");
+ */
char public=0,internal=0,final=0,sealed=1;
for(t=modifiers->tokens;t;t=t->next) {
- if(t->token->type == T_INTERNAL) {
+ if(t->token->type == KW_INTERNAL) {
/* the programmer is being explicit-
being internal is the default anyway */
internal = 1;
- } else if(t->token->type == T_PUBLIC) {
+ } else if(t->token->type == KW_PUBLIC) {
public = 1;
- } else if(t->token->type == T_FINAL) {
+ } else if(t->token->type == KW_FINAL) {
final = 1;
} else {
syntaxerror("modifier \"%s\" not supported in class declaration", t->token->text);
syntaxerror("public and internal not supported at the same time.");
/* create the class name, together with the proper attributes */
- multiname_t* classname = 0;
- if(!public && !state->package)
- classname = multiname_new(namespace_new_private(current_filename), state->classname);
- else if(!public && state->package)
- classname = multiname_new(namespace_new_packageinternal(state->package), state->classname);
- else if(state->package)
- classname = multiname_new(namespace_new_package(state->package), state->classname);
- else
+ 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;
+ } else {
syntaxerror("public classes only allowed inside a package");
+ }
- /* try to find the superclass */
- multiname_t* superclass = 0;
- if(extends->type != T_EMPTY) {
- superclass = registry_findclass(extends->text);
- } else {
- superclass = registry_getobjectclass();
+ if(registry_findclass(package, state->classname)) {
+ syntaxerror("Package \"%s\" already contains a class called \"%s\"", package, state->classname);
}
+
+ class_signature_t* classname = class_signature_register(access, package, state->classname);
- state->cls = abc_class_new(state->file, classname, superclass);
+ MULTINAME(classname2,classname);
+
+ multiname_t*extends2 = sig2mname(extends);
+
+ state->cls = abc_class_new(state->file, &classname2, extends2);
if(final) abc_class_final(state->cls);
if(sealed) abc_class_sealed(state->cls);
+ if(interface) abc_class_interface(state->cls);
- for(t=implements->tokens;t;t=t->next) {
- abc_class_add_interface(state->cls, registry_findclass(t->token->text));
+ for(mlist=implements;mlist;mlist=mlist->next) {
+ MULTINAME(m, mlist->class_signature);
+ abc_class_add_interface(state->cls, &m);
}
/* now write the construction code for this class */
- int slotindex = abc_initscript_addClassTrait(state->init, classname, state->cls);
+ int slotindex = abc_initscript_addClassTrait(state->init, &classname2, state->cls);
abc_method_body_t*m = state->init->method->body;
__ getglobalscope(m);
- multiname_t*s = superclass;
+ class_signature_t*s = extends;
+
int count=0;
+
while(s) {
- //TODO: invert
//TODO: take a look at the current scope stack, maybe
// we can re-use something
- __ getlex2(m, s);
+ s = s->superclass;
+ if(!s)
+ break;
+
+ multiname_t*s2 = sig2mname(s);
+ __ getlex2(m, s2);
+ multiname_destroy(s2);
+
__ pushscope(m);
- s = registry_getsuperclass(s);
+ 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, superclass);
+ if(extends2) {
+ __ getlex2(m, extends2);
+ __ dup(m);
+ __ pushscope(m); // we get a Verify Error #1107 if this is not the top scope
+ } else {
+ __ pushnull(m);
+ }
__ 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);
+ }
+ }
+ multiname_destroy(extends2);
}
static void endclass()
{
- printf("leaving class %s\n", state->classname);
+ /*printf("leaving class %s\n", state->classname);*/
old_state();
}
-static void addimport(token_t*t)
-{
- NEW(import_t,i);
- i->path = t->text;
- list_append(state->imports, i);
-}
-static void print_imports()
-{
- import_list_t*l = state->imports;
- while(l) {
- printf(" import %s\n", l->import->path);
- l = l->next;
- }
-}
static void startfunction(token_t*ns, token_t*mod, token_t*getset, token_t*name,
- token_t*params, token_t*type)
+ param_list_t*params, class_signature_t*type)
{
token_list_t*t;
new_state();
state->function = name->text;
- printf("entering function %s\n", 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");
- printf(" type: %s\n", type->text);
- print_imports();
+ if(type)
+ printf(" type: %s.%s\n", type->package, type->name);
+ print_imports();*/
+
+ if(state->m) {
+ syntaxerror("not able to start another method scope");
+ }
+
+ multiname_t*type2 = sig2mname(type);
+
+ 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);
+ }
+ param_list_t*p;
+ for(p=params;p;p=p->next) {
+ multiname_t*m = sig2mname(p->param->type);
+ list_append(state->m->method->parameters, m);
+ }
+
+ /* state->vars is initialized by state_new */
+ array_append(state->vars, "this", 0);
+ for(p=params;p;p=p->next) {
+ array_append(state->vars, p->param->name, 0);
+ }
+
+ __ getlocal_0(state->m);
+ __ pushscope(state->m);
+
+ multiname_destroy(type2);
}
static void endfunction()
{
- printf("leaving function %s\n", state->function);
+ /*printf("leaving function %s\n", state->function);*/
+ __ returnvoid(state->m);
+
old_state();
}
-static int newvariable(token_t*mod, token_t*varconst, token_t*name, token_t*type)
-{
- token_list_t*t;
- printf("defining new variable %s\n", name->text);
- printf(" mod: ");for(t=mod->tokens;t;t=t->next) printf("%s ", t->token->text);printf("\n");
- printf(" access: ");printf("%s\n", varconst->text);
- printf(" type: ");printf("%s\n", type->text);
-}
+
+
static token_t* empty_token()
{
NEW(token_t,t);
list->text[l1+l2+l3]=0;
}
+static int find_variable(char*name, class_signature_t**m)
+{
+ state_list_t* s = state_stack;
+ while(s) {
+ int i = array_find(s->state->vars, name);
+ if(i>=0) {
+ if(m) {
+ *m = array_getvalue(s->state->vars, i);
+ }
+ return i + s->state->local_var_base;
+ }
+ s = s->next;
+ }
+ syntaxerror("undefined variable: %s", name);
+}
+static char variable_exists(char*name)
+{
+ return array_contains(state->vars, name);
+}
+static int new_variable(char*name, class_signature_t*type)
+{
+ return array_append(state->vars, name, type) + state->local_var_base;
+}
+code_t* killvars(code_t*c)
+{
+ 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);
+ //}
+ }
+ return c;
+}
+
+class_signature_t*join_types(class_signature_t*type1, class_signature_t*type2, char op)
+{
+ return registry_getanytype(); // FIXME
+}
+char is_subtype_of(class_signature_t*type, class_signature_t*supertype)
+{
+ return 1; // FIXME
+}
+
+void breakjumpsto(code_t*c, code_t*jump)
+{
+ while(c->prev)
+ c=c->prev;
+ while(c) {
+ if(c->opcode == OPCODE___BREAK__) {
+ c->opcode = OPCODE_JUMP;
+ c->branch = jump;
+ }
+ c = c->next;
+ }
+}
+code_t*converttype(code_t*c, class_signature_t*from, class_signature_t*to)
+{
+ if(!to) {
+ /*TODO: can omit this if from is zero? */
+ return abc_coerce_a(c);
+ }
+ if(TYPE_IS_NUMBER(from) && TYPE_IS_UINT(to)) {
+ MULTINAME(m, TYPE_UINT);
+ return abc_coerce2(c, &m);
+ }
+ if(TYPE_IS_NUMBER(from) && TYPE_IS_INT(to)) {
+ MULTINAME(m, TYPE_INT);
+ return abc_coerce2(c, &m);
+ }
+ return c;
+}
+
+code_t*defaultvalue(code_t*c, class_signature_t*type)
+{
+ 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);
+ } else {
+ c = abc_pushnull(c);
+ }
+ return c;
+}
+
%}
+
+
%%
-PROGRAM: CODE PROGRAM
-PROGRAM:
-
-//EMPTY: {
-// token_t* t = malloc(sizeof(token_t));
-// t->text = strdup("");
-// t->type = T_EMPTY;
-// $$ = t;
-//}
-
-CODE: CODE CODEPIECE {$$=$1;}
-CODE: CODEPIECE {$$=empty_token();}
-
-MAYBECODE: CODE
-MAYBECODE:
-
-CODEPIECE: ';'
-CODEPIECE: VARIABLE_DECLARATION {$$=$1;}
-CODEPIECE: PACKAGE_DECLARATION
-CODEPIECE: IMPORT
-CODEPIECE: NAMESPACE_DECLARATION
-CODEPIECE: CLASS_DECLARATION
-CODEPIECE: INTERFACE_DECLARATION
-CODEPIECE: FUNCTION_DECLARATION
-CODEPIECE: EXPRESSION
-CODEPIECE: FOR
-CODEPIECE: USE
-CODEPIECE: ASSIGNMENT
-
-PACKAGE_DECLARATION : T_PACKAGE MULTILEVELIDENTIFIER '{' {startpackage($2)} MAYBECODE '}' {endpackage()}
-PACKAGE_DECLARATION : T_PACKAGE '{' {startpackage(0)} MAYBECODE '}' {endpackage()}
-
-IMPORT : T_IMPORT PACKAGESPEC {addimport($2);}
-
-TYPE : BUILTIN_TYPE | '*' | T_IDENTIFIER
-// TODO: do we need this? all it does it is clutter up our keyword space
-BUILTIN_TYPE : T_STRING
-BUILTIN_TYPE : T_NUMBER
-BUILTIN_TYPE : T_INT
-BUILTIN_TYPE : T_UINT
-BUILTIN_TYPE : T_BOOLEAN
-BUILTIN_TYPE : T_NULL
+/* ------------ code blocks / statements ---------------- */
+
+PROGRAM: MAYBECODE
+
+MAYBECODE: CODE {$$=$1;}
+MAYBECODE: {$$=code_new();}
+
+CODE: CODE CODEPIECE {$$=code_append($1,$2);}
+CODE: CODEPIECE {$$=$1;}
+
+CODEPIECE: PACKAGE_DECLARATION {$$=code_new();/*enters a scope*/}
+CODEPIECE: CLASS_DECLARATION {$$=code_new();/*enters a scope*/}
+CODEPIECE: 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;}
+
+/* ------------ functions --------------------------- */
+
+FUNCTION_DECLARATION: MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
+ 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()
+}
-MAYBETYPE: ':' TYPE {$$=$2;}
-MAYBETYPE: {$$=empty_token();}
+/* ------------ variables --------------------------- */
-//FUNCTION_HEADER: NAMESPACE MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
-FUNCTION_HEADER: MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
- MAYBETYPE
-FUNCTION_DECLARATION: MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
- MAYBETYPE '{' {startfunction(0,$1,$3,$4,$6,$8)} MAYBECODE '}' {endfunction()}
+MAYBEEXPRESSION : '=' EXPRESSION {$$=$2;}
+ | {$$.c=abc_pushundefined(0);
+ $$.t=TYPE_ANY;
+ }
-NAMESPACE_DECLARATION : MODIFIERS T_NAMESPACE T_IDENTIFIER
-NAMESPACE_DECLARATION : MODIFIERS T_NAMESPACE T_IDENTIFIER '=' T_IDENTIFIER
-NAMESPACE_DECLARATION : MODIFIERS T_NAMESPACE T_IDENTIFIER '=' T_STRING
+VAR : "const" | "var"
+VARIABLE_DECLARATION : VAR T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION {
+ if(variable_exists($2->text))
+ syntaxerror("Variable %s already defined", $2->text);
+
+ if(!is_subtype_of($4.t, $3)) {
+ syntaxerror("Can't convert %s to %s", $4.t->name,
+ $3->name);
+ }
-//NAMESPACE : {$$=empty_token();}
-//NAMESPACE : T_IDENTIFIER {$$=$1};
+ int index = new_variable($2->text, $3);
+
+ if($3) {
+ if($4.c->prev || $4.c->opcode != OPCODE_PUSHUNDEFINED) {
+ $$ = $4.c;
+ $$ = converttype($$, $4.t, $3);
+ $$ = abc_setlocal($$, index);
+ } else {
+ $$ = defaultvalue(0, $3);
+ $$ = abc_setlocal($$, index);
+ }
+
+ /* push default value for type on stack */
+ state->initcode = defaultvalue(state->initcode, $3);
+ state->initcode = abc_setlocal(state->initcode, index);
+ } else {
+ /* only bother to actually set this variable if its syntax is either
+ var x:type;
+ or
+ var x=expr;
+ */
+ if($4.c->prev || $4.c->opcode != OPCODE_PUSHUNDEFINED) {
+ $$ = $4.c;
+ $$ = abc_coerce_a($$);
+ $$ = abc_setlocal($$, index);
+ } else {
+ $$ = code_new();
+ }
+ }
+
+ /* that's the default for a local register, anyway
+ else {
+ state->initcode = abc_pushundefined(state->initcode);
+ state->initcode = abc_setlocal(state->initcode, index);
+ }*/
+ printf("variable %s -> %d (%s)\n", $2->text, index, $4.t?$4.t->name:"");
+}
+ASSIGNMENT : T_IDENTIFIER '=' EXPRESSION {
+ class_signature_t*type=0;
+ int i = find_variable($1->text, &type);
+ $$ = $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);
+}
+
+/* ------------ control flow ------------------------- */
+
+MAYBEELSE: %prec prec_none {$$ = code_new();}
+MAYBEELSE: "else" CODEBLOCK {$$=$2;}
+//MAYBEELSE: ';' "else" CODEBLOCK {$$=$3;}
+
+IF : "if" '(' {new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE {
+ $$ = state->initcode;state->initcode=0;
+
+ $$ = code_append($$, $4.c);
+ code_t*myjmp,*myif = $$ = abc_iffalse($$, 0);
+
+ $$ = code_append($$, $6);
+ if($7) {
+ myjmp = $$ = abc_jump($$, 0);
+ }
+ myif->branch = $$ = abc_label($$);
+ if($7) {
+ $$ = code_append($$, $7);
+ myjmp->branch = $$ = abc_label($$);
+ }
+
+ $$ = killvars($$);old_state();
+}
-CONSTANT : T_NUMBER
-CONSTANT : T_STRING
-CONSTANT : T_TRUE | T_FALSE
-CONSTANT : T_NULL
+FOR_INIT : {$$=code_new();}
+FOR_INIT : ASSIGNMENT | VARIABLE_DECLARATION | VOIDEXPRESSION
-VAR : T_CONST | T_VAR
+FOR : "for" '(' {new_state();} FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK {
+ $$ = state->initcode;state->initcode=0;
-// type annotation
-// TODO: NAMESPACE
+ $$ = code_append($$, $4);
+ code_t*loopstart = $$ = abc_label($$);
+ $$ = code_append($$, $6.c);
+ code_t*myif = $$ = abc_iffalse($$, 0);
+ $$ = code_append($$, $10);
+ $$ = code_append($$, $8);
+ $$ = abc_jump($$, loopstart);
+ code_t*out = $$ = abc_label($$);
+ breakjumpsto($$, out);
+ myif->branch = out;
-VARIABLE_DECLARATION : MODIFIERS VAR T_IDENTIFIER MAYBETYPE {
- int i = newvariable($1,$2,$3,$4);
+ $$ = killvars($$);old_state();
}
-VARIABLE_DECLARATION : MODIFIERS VAR T_IDENTIFIER MAYBETYPE '=' EXPRESSION {
- int i = newvariable($1,$2,$3,$4);
- //setvariable(i,$6);
+
+WHILE : "while" '(' {new_state();} EXPRESSION ')' CODEBLOCK {
+ $$ = state->initcode;state->initcode=0;
+
+ code_t*myjmp = $$ = abc_jump($$, 0);
+ code_t*loopstart = $$ = abc_label($$);
+ $$ = code_append($$, $6);
+ myjmp->branch = $$ = abc_label($$);
+ $$ = code_append($$, $4.c);
+ $$ = abc_iftrue($$, loopstart);
+ code_t*out = $$ = abc_label($$);
+ breakjumpsto($$, out);
+
+ $$ = killvars($$);old_state();
}
-// operator prescendence:
-// http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00000012.html
-EXPRESSION : EXPRESSION '<' EXPRESSION
-EXPRESSION : EXPRESSION '>' EXPRESSION
-EXPRESSION : EXPRESSION "<=" EXPRESSION
-EXPRESSION : EXPRESSION ">=" EXPRESSION
-EXPRESSION : EXPRESSION "==" EXPRESSION
-EXPRESSION : EXPRESSION '+' TERM
-EXPRESSION : EXPRESSION '-' TERM
-EXPRESSION : TERM
-EXPRESSION : '-' TERM
-TERM : TERM '*' FACTOR
-TERM : TERM '/' FACTOR
-TERM : EMOD
-EMOD: FACTOR "++"
-EMOD: FACTOR "--"
-EMOD: FACTOR
-FACTOR : '(' EXPRESSION ')'
-FACTOR : CONSTANT
-FACTOR : VARIABLE
-FACTOR : FUNCTIONCALL
-FACTOR : T_REGEXP
-FACTOR : NEW
-FACTOR : IS
-FACTOR : AS
-
-IS : EXPRESSION T_IS TYPE
-AS : EXPRESSION T_AS TYPE
-NEW : T_NEW T_IDENTIFIER | T_NEW T_IDENTIFIER '(' ')'
-NEW : T_NEW T_IDENTIFIER '(' EXPRESSIONLIST ')'
-
-FUNCTIONCALL : VARIABLE '(' EXPRESSIONLIST ')'
-FUNCTIONCALL : VARIABLE '(' ')'
-
-EXPRESSIONLIST : EXPRESSION
-EXPRESSIONLIST : EXPRESSION ',' EXPRESSIONLIST
-
-VARIABLE : T_IDENTIFIER
-VARIABLE : VARIABLE '.' T_IDENTIFIER
-VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants
-VARIABLE : VARIABLE "::" VARIABLE // namespace declaration
-VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression
-VARIABLE : VARIABLE '[' EXPRESSION ']' // unqualified expression
-
-ASSIGNMENT : VARIABLE '=' EXPRESSION
-NEW_ASSIGNMENT : T_VAR VARIABLE MAYBETYPE '=' EXPRESSION
-
-FOR : T_FOR '(' NEW_ASSIGNMENT ';' EXPRESSION ';' EXPRESSION ')' '{' MAYBECODE '}'
-FOR : T_FOR '(' ASSIGNMENT ';' EXPRESSION ';' EXPRESSION ')' '{' MAYBECODE '}'
-
-USE : T_USE T_NAMESPACE T_IDENTIFIER
+BREAK : "break" {
+ $$ = abc___break__(0);
+}
-// keywords which also may be identifiers
-X_IDENTIFIER : T_IDENTIFIER | T_PACKAGE
+/* ------------ packages and imports ---------------- */
-PACKAGESPEC : PACKAGESPEC '.' PACKAGESPEC {if($1->text[0]=='*') syntaxerror("wildcard in the middle of path");
- $$ = concat3($1,$2,$3);}
-PACKAGESPEC : X_IDENTIFIER {$$=$1;}
-PACKAGESPEC : '*' {$$=$1;}
+PACKAGE_DECLARATION : "package" MULTILEVELIDENTIFIER '{' {startpackage($2)} MAYBECODE '}' {endpackage()}
+PACKAGE_DECLARATION : "package" '{' {startpackage(0)} MAYBECODE '}' {endpackage()}
-GETSET : T_GET {$$=$1;}
- | T_SET {$$=$1;}
- | {$$=empty_token();}
+PACKAGE: PACKAGE '.' X_IDENTIFIER {$$ = concat3($1,$2,$3);}
+PACKAGE: X_IDENTIFIER {$$=$1;}
-CLASS_DECLARATION : MODIFIERS T_CLASS T_IDENTIFIER EXTENDS IMPLEMENTS_LIST '{' {startclass($1,$3,$4,$5);} MAYBE_DECLARATION_LIST '}' {endclass();}
-INTERFACE_DECLARATION : MODIFIERS T_INTERFACE T_IDENTIFIER EXTENDS_LIST '{' MAYBE_IDECLARATION_LIST '}'
+IMPORT : "import" PACKAGE '.' X_IDENTIFIER {
+ class_signature_t*c = registry_findclass($2->text, $4->text);
+ if(!c)
+ syntaxerror("Couldn't import %s.%s\n", $2->text, $4->text);
+ state_has_imports();
+ dict_put(state->imports, $4->text, c);
+ $$=0;
+}
+IMPORT : "import" PACKAGE '.' '*' {
+ NEW(import_t,i);
+ i->package = $2->text;
+ state_has_imports();
+ list_append(state->wildcard_imports, i);
+ $$=0;
+}
-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;}
+/* ------------ classes and interfaces -------------- */
MODIFIERS : {$$=empty_token();}
MODIFIERS : MODIFIER_LIST {$$=$1}
MODIFIER_LIST : MODIFIER MODIFIER_LIST {extend($2,$1);$$=$2;}
MODIFIER_LIST : MODIFIER {$$=empty_token();extend($$,$1);}
-MODIFIER : T_PUBLIC | T_PRIVATE | T_PROTECTED | T_STATIC | T_DYNAMIC | T_FINAL | T_OVERRIDE | T_NATIVE | T_INTERNAL
+MODIFIER : KW_PUBLIC | KW_PRIVATE | KW_PROTECTED | KW_STATIC | KW_DYNAMIC | KW_FINAL | KW_OVERRIDE | KW_NATIVE | KW_INTERNAL
+
+EXTENDS : {$$=registry_getobjectclass();}
+EXTENDS : KW_EXTENDS PACKAGEANDCLASS {$$=$2;}
+
+EXTENDS_LIST : {$$=list_new();}
+EXTENDS_LIST : KW_EXTENDS PACKAGEANDCLASS_LIST {$$=$2;}
+
+IMPLEMENTS_LIST : {$$=list_new();}
+IMPLEMENTS_LIST : KW_IMPLEMENTS PACKAGEANDCLASS_LIST {$$=$2;}
+
+CLASS_DECLARATION : MODIFIERS "class" T_IDENTIFIER
+ EXTENDS IMPLEMENTS_LIST
+ '{' {startclass($1,$3,$4,$5, 0);}
+ MAYBE_DECLARATION_LIST
+ '}' {endclass();}
+INTERFACE_DECLARATION : MODIFIERS "interface" T_IDENTIFIER
+ EXTENDS_LIST
+ '{' {startclass($1,$3,0,$4,1);}
+ MAYBE_IDECLARATION_LIST
+ '}' {endclass();}
+
+TYPE : PACKAGEANDCLASS {$$=$1;}
+ | '*' {$$=registry_getanytype();}
+ | "String" {$$=registry_getstringclass();}
+ | "int" {$$=registry_getintclass();}
+ | "uint" {$$=registry_getuintclass();}
+ | "Boolean" {$$=registry_getbooleanclass();}
+ | "Number" {$$=registry_getnumberclass();}
-DECLARATION : VARIABLE_DECLARATION
-DECLARATION : FUNCTION_DECLARATION
+MAYBETYPE: ':' TYPE {$$=$2;}
+MAYBETYPE: {$$=0;}
-IDECLARATION : VARIABLE_DECLARATION
-IDECLARATION : FUNCTION_DECLARATION
+//FUNCTION_HEADER: NAMESPACE MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')'
+FUNCTION_HEADER: MODIFIERS "function" GETSET T_IDENTIFIER '(' MAYBE_PARAM_LIST ')'
+ MAYBETYPE
-IMPLEMENTS_LIST : {$$=empty_token();}
-IMPLEMENTS_LIST : T_IMPLEMENTS MIDENTIFIER_LIST {$$=$2;}
+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
-EXTENDS : {$$=empty_token();}
-EXTENDS : T_EXTENDS MULTILEVELIDENTIFIER {$$=$2;}
+//NAMESPACE : {$$=empty_token();}
+//NAMESPACE : T_IDENTIFIER {$$=$1};
-EXTENDS_LIST : {$$=empty_token();}
-EXTENDS_LIST : T_EXTENDS MIDENTIFIER_LIST {$$=$2;}
+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 {$$ = $1;}
+E : NEW {$$ = $1;}
+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;
+ }
+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 {$$.c = $1.c;
+ $$.c=abc_dup($$.c);
+ code_t*jmp = $$.c = abc_iftrue($$.c, 0);
+ $$.c=abc_pop($$.c);
+ $$.c = code_append($$.c,$3.c);
+ code_t*label = $$.c = abc_label($$.c);
+ jmp->branch = label;
+ $$.t = join_types($1.t, $3.t, 'O');
+ }
+E : E "&&" E {$$.c = $1.c;
+ $$.c=abc_dup($$.c);
+ code_t*jmp = $$.c = abc_iffalse($$.c, 0);
+ $$.c=abc_pop($$.c);
+ $$.c = code_append($$.c,$3.c);
+ code_t*label = $$.c = abc_label($$.c);
+ jmp->branch = label;
+ $$.t = join_types($1.t, $3.t, 'A');
+ }
+
+E : '!' E {$$.c=$2.c;
+ $$.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, '+');
+ }
+E : E '%' E {$$.c = code_append($1.c,$3.c);$$.c = abc_modulo($$.c);$$.c=abc_coerce_a($$.c);
+ $$.t = join_types($1.t, $3.t, '%');
+ }
+E : E '*' E {$$.c = code_append($1.c,$3.c);$$.c = abc_multiply($$.c);$$.c=abc_coerce_a($$.c);
+ $$.t = join_types($1.t, $3.t, '*');
+ }
+
+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($$.c);
+ class_signature_t*type = join_types($1.type, $3.t, '+');
+ $$.c=converttype($$.c, type, $1.type);
+ $$.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($$.c);
+ class_signature_t*type = join_types($1.type, $3.t, '-');
+ $$.c=converttype($$.c, type, $1.type);
+ $$.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($$.c);
+ class_signature_t*type = $1.type;
+ if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) type = TYPE_NUMBER;
+ $$.c=converttype($$.c, type, $1.type);
+ $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
+ $$.t = $1.type;
+ }
+E : LH "--" {$$.c = $1.read;$$.c=abc_decrement($$.c);
+ class_signature_t*type = $1.type;
+ if(TYPE_IS_INT(type) || TYPE_IS_UINT(type)) type = TYPE_NUMBER;
+ $$.c=converttype($$.c, 0, $1.type);
+ $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write);
+ $$.t = $1.type;
+ }
+
+LH: T_IDENTIFIER {
+ int i = find_variable($1->text, &$$.type);
+ $$.read = abc_getlocal(0, i);
+ $$.write = abc_setlocal(0, i);
+}
-//IDENTIFIER_LIST : T_IDENTIFIER ',' IDENTIFIER_LIST {extend($3,$1);$$=$3;}
-//IDENTIFIER_LIST : T_IDENTIFIER {$$=empty_token();extend($$,$1);}
+MAYBE_PARAM_VALUES : %prec prec_none {$$=0;}
+MAYBE_PARAM_VALUES : '(' MAYBE_EXPRESSION_LIST ')' {$$=$2}
-MULTILEVELIDENTIFIER : T_IDENTIFIER {$$=empty_token();extend($$,$1);}
-MULTILEVELIDENTIFIER : MULTILEVELIDENTIFIER '.' X_IDENTIFIER {extend_s($1,".",$3);$$=$1;}
+NEW : "new" PACKAGEANDCLASS MAYBE_PARAM_VALUES {
+ MULTINAME(m, $2);
+ $$.c = code_new();
+ $$.c = abc_findpropstrict2($$.c, &m);
+ typedcode_list_t*l = $3;
+ int len = 0;
+ while(l) {
+ $$.c = code_append($$.c, l->typedcode->c); // push parameters on stack
+ l = l->next;
+ len ++;
+ }
+ $$.c = abc_constructprop2($$.c, &m, len);
+ $$.t = $2;
+}
-MIDENTIFIER_LIST : MULTILEVELIDENTIFIER {$$=empty_token();extend($$,$1);}
-MIDENTIFIER_LIST : MIDENTIFIER_LIST ',' MULTILEVELIDENTIFIER {extend($1,$3);$$=$1;}
+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($$.c, $1->text);
+ typedcode_list_t*l = $3;
+ int len = 0;
+ while(l) {
+ $$.c = code_append($$.c, l->typedcode->c); // push parameters on stack
+ l = l->next;
+ len ++;
+ }
+ $$.c = abc_callproperty($$.c, $1->text, len);
+ /* TODO: look up the functions's return value */
+ $$.t = TYPE_ANY;
+}
-MAYBE_DECLARATION_LIST :
-MAYBE_DECLARATION_LIST : DECLARATION_LIST
-DECLARATION_LIST : DECLARATION
-DECLARATION_LIST : DECLARATION_LIST DECLARATION
+MAYBE_EXPRESSION_LIST : {$$=0;}
+MAYBE_EXPRESSION_LIST : EXPRESSION_LIST
+EXPRESSION_LIST : EXPRESSION {$$=list_new();
+ typedcode_t*t = malloc(sizeof(typedcode_t));
+ *t = $1;
+ list_append($$, t);}
+EXPRESSION_LIST : EXPRESSION_LIST ',' EXPRESSION {$$=$1;
+ typedcode_t*t = malloc(sizeof(typedcode_t));
+ *t = $3;
+ list_append($$, t);}
+
+VAR_READ : T_IDENTIFIER {
+ int i = find_variable($1->text, &$$.t);
+ $$.c = abc_getlocal(0, i);
+}
-MAYBE_IDECLARATION_LIST :
-MAYBE_IDECLARATION_LIST : IDECLARATION_LIST
-IDECLARATION_LIST : IDECLARATION
-IDECLARATION_LIST : IDECLARATION_LIST FUNCTION_HEADER
+//VARIABLE : T_IDENTIFIER
+//VARIABLE : VARIABLE '.' T_IDENTIFIER
+//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants
+//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration
+//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression
+//VARIABLE : VARIABLE '[' EXPRESSION ']' // unqualified expression
-// keywords: as break case catch class const continue default delete do else extends false finally for function if implements import in instanceof interface internal is native new null package private protected public return super switch this throw to true try typeof use var void while with
-// syntactic keywords: each get set namespace include dynamic final native override static
-// chapter 14
+// keywords which also may be identifiers
+X_IDENTIFIER : T_IDENTIFIER | KW_PACKAGE
+GETSET : "get" {$$=$1;}
+ | "set" {$$=$1;}
+ | {$$=empty_token();}
-%%
+MAYBE_PARAM_LIST: {$$=list_new();}
+MAYBE_PARAM_LIST: PARAM_LIST {$$=$1;}
+PARAM_LIST: PARAM_LIST ',' PARAM {$$ =$1; list_append($$, $3);}
+PARAM_LIST: PARAM {$$ = list_new();list_append($$, $1);}
+PARAM: T_IDENTIFIER ':' TYPE {$$ = malloc(sizeof(param_t));
+ $$->name=$1->text;$$->type = $3;}
+PARAM: T_IDENTIFIER {$$ = malloc(sizeof(param_t));
+ $$->name=$1->text;$$->type = TYPE_ANY;}
-#ifdef MAIN
+DECLARATION : VARIABLE_DECLARATION
+DECLARATION : FUNCTION_DECLARATION
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <memory.h>
+IDECLARATION : VARIABLE_DECLARATION
+IDECLARATION : FUNCTION_DECLARATION
-void test_lexer()
-{
- while(1) {
- int token = yylex();
- if(token==T_EOF)
+//IDENTIFIER_LIST : T_IDENTIFIER ',' IDENTIFIER_LIST {extend($3,$1);$$=$3;}
+//IDENTIFIER_LIST : T_IDENTIFIER {$$=empty_token();extend($$,$1);}
+
+PACKAGEANDCLASS : T_IDENTIFIER {
+
+ /* try current package */
+ $$ = registry_findclass(state->package, $1->text);
+
+ /* try explicit imports */
+ dictentry_t* e = dict_get_slot(state->imports, $1->text);
+ while(e) {
+ if($$)
break;
- if(token>=32 && token<256) {
- printf("'%c'\n", token);
- } else {
- printf("%s\n", token2string(avm2_lval));
+ if(!strcmp(e->key, $1->text)) {
+ $$ = (class_signature_t*)e->data;
}
+ e = e->next;
}
-}
-int main(int argn, char*argv[])
-{
- //FILE*fi = fopen("/home/kramm/c/flex/text.as", "rb");
- char*filename = "include.as";
- char buf[512];
- if(argn>1)
- filename=argv[1];
-
- add_include_dir(getcwd(buf, 512));
- char*fullfilename = enter_file(filename, 0);
-
- FILE*fi = fopen(fullfilename, "rb");
- if(!fi) {
- perror(fullfilename);
- return 1;
+ /* try package.* imports */
+ import_list_t*l = state->wildcard_imports;
+ while(l) {
+ if($$)
+ break;
+ //printf("does package %s contain a class %s?\n", l->import->package, $1->text);
+ $$ = registry_findclass(l->import->package, $1->text);
+ l = l->next;
}
- initialize_state();
- avm2_set_in(fi);
- if(argn>2 && !strcmp(argv[2], "-lex")) {
- test_lexer();
- return 0;
+ /* try global package */
+ if(!$$) {
+ $$ = registry_findclass("", $1->text);
}
- avm2_parse();
- finalize_state();
+ if(!$$) syntaxerror("Could not find class %s\n", $1->text);
+}
+PACKAGEANDCLASS : PACKAGE '.' T_IDENTIFIER {
+ $$ = registry_findclass($1->text, $3->text);
+ if(!$$) syntaxerror("Couldn't find class %s.%s\n", $1->text, $3->text);
+}
- SWF swf;
- memset(&swf, 0, sizeof(swf));
- swf.fileVersion = 9;
- swf.frameRate = 0x2500;
- swf.movieSize.xmin = swf.movieSize.ymin = 0;
- swf.movieSize.xmax = 1024*20;
- swf.movieSize.ymax = 768*20;
- TAG*tag = swf.firstTag = swf_InsertTag(0, ST_DOABC);
- swf_WriteABC(tag, state->file);
- swf_InsertTag(tag, ST_END);
- int f = open("abc.swf",O_RDWR|O_CREAT|O_TRUNC|O_BINARY,0644);
- swf_WriteSWF(f,&swf);
- close(f);
+MULTILEVELIDENTIFIER : MULTILEVELIDENTIFIER '.' X_IDENTIFIER {$$=$1;extend_s($$, ".", $3)}
+MULTILEVELIDENTIFIER : T_IDENTIFIER {$$=$1;extend($$,$1)};
+
+PACKAGEANDCLASS_LIST : PACKAGEANDCLASS {$$=list_new();list_append($$, $1);}
+PACKAGEANDCLASS_LIST : PACKAGEANDCLASS_LIST ',' PACKAGEANDCLASS {$$=$1;list_append($$,$3);}
+
+MAYBE_DECLARATION_LIST :
+MAYBE_DECLARATION_LIST : DECLARATION_LIST
+DECLARATION_LIST : DECLARATION
+DECLARATION_LIST : DECLARATION_LIST DECLARATION
+
+MAYBE_IDECLARATION_LIST :
+MAYBE_IDECLARATION_LIST : IDECLARATION_LIST
+IDECLARATION_LIST : IDECLARATION
+IDECLARATION_LIST : IDECLARATION_LIST FUNCTION_HEADER
+
+// chapter 14
+// keywords: as break case catch class const continue default delete do else extends false finally for function if implements import in instanceof interface internal is native new null package private protected public return super switch this throw to true try typeof use var void while with
+// syntactic keywords: each get set namespace include dynamic final native override static
- return 0;
-}
-#endif
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