X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=lib%2Fas3%2Fparser.y;h=59e7f6a474a59b0d727a4143f7b9f4d6e7cdfc5c;hb=3f9b43eec2a339e1c60a4139556b6153f8b3cc65;hp=6055295d6be40445a7cc886e3514c31b99df386b;hpb=858101feb1e9a0f845642b4d4e968be0191a80a0;p=swftools.git diff --git a/lib/as3/parser.y b/lib/as3/parser.y index 6055295..59e7f6a 100644 --- a/lib/as3/parser.y +++ b/lib/as3/parser.y @@ -1,3 +1,25 @@ +/* parser.lex + + Routines for compiling Flash2 AVM2 ABC Actionscript + + Extension module for the rfxswf library. + Part of the swftools package. + + Copyright (c) 2008 Matthias Kramm + + 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 #include @@ -9,6 +31,7 @@ #include "registry.h" #include "code.h" #include "opcodes.h" + %} //%glr-parser @@ -23,12 +46,15 @@ unsigned int number_uint; double number_float; struct _code*code; - struct _code_list*code_list; + struct _typedcode value; + struct _typedcode_list*value_list; + struct _writeable writeable; + char*string; } %token T_IDENTIFIER -%token T_STRING +%token T_STRING %token T_REGEXP %token T_EMPTY %token T_INT @@ -38,7 +64,7 @@ %token T_FLOAT %token KW_IMPLEMENTS -%token KW_NAMESPACE +%token KW_NAMESPACE "namespace" %token KW_PACKAGE "package" %token KW_PROTECTED %token KW_PUBLIC @@ -62,17 +88,23 @@ %token KW_FINAL %token KW_GET "get" %token KW_EXTENDS -%token KW_FALSE "False" -%token KW_TRUE "True" +%token KW_FALSE "false" +%token KW_TRUE "true" %token KW_BOOLEAN "Boolean" %token KW_UINT "uint" %token KW_INT "int" +%token KW_WHILE "while" %token KW_NUMBER "Number" %token KW_STRING "String" +%token KW_IF "if" +%token KW_ELSE "else" +%token KW_BREAK "break" %token KW_IS "is" %token KW_AS "as" %token T_EQEQ "==" +%token T_EQEQEQ "===" +%token T_NE "!=" %token T_LE "<=" %token T_GE ">=" %token T_DIVBY "/=" @@ -95,21 +127,24 @@ %token T_STAR '*' %token T_DOT '.' -%type CODE -%type CODEPIECE CODEPIECE2 +%type CODE +%type CODEPIECE +%type CODEBLOCK MAYBECODE %type PACKAGE_DECLARATION %type FUNCTION_DECLARATION %type VARIABLE_DECLARATION %type CLASS_DECLARATION %type NAMESPACE_DECLARATION %type INTERFACE_DECLARATION -%type EXPRESSION -%type MAYBEEXPRESSION -%type E -%type CONSTANT -%type FOR -%type USE -%type ASSIGNMENT +%type VOIDEXPRESSION +%type EXPRESSION +%type MAYBEEXPRESSION +%type E +%type LH +%type CONSTANT +%type FOR IF WHILE MAYBEELSE BREAK +%type USE_NAMESPACE +%type ASSIGNMENT FOR_INIT %type IMPORT %type MAYBETYPE %type PACKAGESPEC @@ -127,14 +162,14 @@ %type MULTILEVELIDENTIFIER %type TYPE %type VAR -%type VARIABLE -%type VAR_READ -%type NEW +//%type VARIABLE +%type VAR_READ +%type NEW %type X_IDENTIFIER %type MODIFIER %type PACKAGE -%type FUNCTIONCALL -%type MAYBE_EXPRESSION_LIST EXPRESSION_LIST +%type FUNCTIONCALL +%type MAYBE_EXPRESSION_LIST EXPRESSION_LIST // 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 @@ -169,7 +204,11 @@ %nonassoc "as" %left '.' ".." "::" %nonassoc T_IDENTIFIER +%left below_semicolon +%left ';' +%nonassoc "else" %left '(' +%left prec_highest %{ @@ -229,6 +268,10 @@ typedef struct _state { char*package; char*function; + /* 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*imports; @@ -237,7 +280,7 @@ typedef struct _state { abc_class_t*cls; array_t*vars; - + int local_var_base; } state_t; static state_t* state = 0; @@ -246,16 +289,41 @@ DECLARE_LIST(state); static state_list_t*state_stack=0; -void initialize_state() +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; - state = sl->state = s; + state = s; + state->level++; + state->vars = array_new(); + state->initcode = 0; +} +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; + state->initcode = code_append(state->initcode, oldstate->initcode); +} +void initialize_state() +{ + new_state(); state->file = abc_file_new(); state->file->flags &= ~ABCFILE_LAZY; - state->level = 0; state->init = abc_initscript(state->file, 0, 0); abc_method_body_t*m = state->init->method->body; @@ -267,7 +335,7 @@ void initialize_state() } void* finalize_state() { - if(state->level) { + if(state->level!=1) { syntaxerror("unexpected end of file"); } abc_method_body_t*m = state->init->method->body; @@ -280,32 +348,6 @@ void* finalize_state() return state->file; } -static void new_state() -{ - NEW(state_t, s); - NEW(state_list_t, sl); - - if(state->m) { - syntaxerror("not able to start another method scope"); - } - - memcpy(s, state, sizeof(state_t)); //shallow copy - sl->next = state_stack; - sl->state = s; - state_stack = sl; - state = s; - state->level++; -} -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; -} static void startpackage(token_t*t) { @@ -456,13 +498,16 @@ static void startfunction(token_t*ns, token_t*mod, token_t*getset, token_t*name, printf(" mod: ");for(t=mod->tokens;t;t=t->next) printf("%s ", t->token->text);printf("\n"); printf(" type: %s\n", multiname_tostring(type)); print_imports(); + + if(state->m) { + syntaxerror("not able to start another method scope"); + } if(!strcmp(state->classname,name->text)) { state->m = abc_class_constructor(state->cls, type, 0); } else { state->m = abc_class_method(state->cls, type, name->text, 0); } - state->vars = array_new(); array_append(state->vars, "this", 0); __ getlocal_0(state->m); @@ -475,25 +520,6 @@ static void endfunction() old_state(); } -static int newvariable(token_t*mod, token_t*varconst, token_t*name, multiname_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", multiname_tostring(type)); - - if(!state->vars) - syntaxerror("not allowed to defined variables outside a method"); - - int index = array_find(state->vars, name->text); - if(index>=0) { - syntaxerror("Variable %s already defined", name->text); - } else { - index = array_append(state->vars, name->text, 0); - } - return index; -} static token_t* empty_token() { NEW(token_t,t); @@ -522,36 +548,192 @@ void extend_s(token_t*list, char*seperator, token_t*add) { list->text[l1+l2+l3]=0; } +int find_variable(char*name, multiname_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); +} + +multiname_t*join_types(multiname_t*type1, multiname_t*type2, char op) +{ + return registry_getanytype(); // FIXME +} +char is_subtype_of(multiname_t*type, multiname_t*supertype) +{ + return 1; // FIXME +} + +#define TYPE_ANY registry_getanytype() +#define TYPE_IS_ANY(t) ((t) == registry_getanytype()) +#define TYPE_INT registry_getintclass() +#define TYPE_IS_INT(t) ((t) == registry_getintclass()) +#define TYPE_UINT registry_getuintclass() +#define TYPE_IS_UINT(t) ((t) == registry_getuintclass()) +#define TYPE_FLOAT registry_getnumberclass() +#define TYPE_IS_FLOAT(t) ((t) == registry_getnumberclass()) +#define TYPE_BOOLEAN registry_getbooleanclass() +#define TYPE_IS_BOOLEAN(t)((t) == registry_getbooleanclass()) +#define TYPE_STRING registry_getstringclass() +#define TYPE_IS_STRING(t) ((t) == registry_getstringclass()) +#define TYPE_NULL registry_getnullclass() +#define TYPE_IS_NULL(t) ((t) == registry_getnullclass()) + %} + %% +/* ------------ code blocks / statements ---------------- */ + PROGRAM: MAYBECODE -MAYBECODE: CODE -MAYBECODE: +MAYBECODE: CODE {$$=$1;} +MAYBECODE: {$$=code_new();} -CODE: CODE CODEPIECE2 {$$=$1;} -CODE: CODEPIECE2 {$$=empty_token();} +CODE: CODE CODEPIECE {$$=code_append($1,$2);} +CODE: CODEPIECE {$$=$1;} -CODEPIECE2: CODEPIECE { - if(state->m) { - state->m->code = code_append(state->m->code, $1); - } -} - -CODEPIECE: ';' {/*TODO*/$$=code_new();} +CODEPIECE: PACKAGE_DECLARATION {$$=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 {$$=$1} -CODEPIECE: PACKAGE_DECLARATION {/*TODO*/$$=code_new();} -CODEPIECE: IMPORT {/*TODO*/$$=code_new();} +CODEPIECE: VOIDEXPRESSION {$$=$1} +CODEPIECE: FOR {$$=$1} +CODEPIECE: WHILE {$$=$1} +CODEPIECE: BREAK {$$=$1} +CODEPIECE: IF {$$=$1} +CODEPIECE: ASSIGNMENT {$$=$1} CODEPIECE: NAMESPACE_DECLARATION {/*TODO*/$$=code_new();} -CODEPIECE: CLASS_DECLARATION {/*TODO*/$$=code_new();} -CODEPIECE: INTERFACE_DECLARATION {/*TODO*/$$=code_new();} CODEPIECE: FUNCTION_DECLARATION {/*TODO*/$$=code_new();} -CODEPIECE: EXPRESSION {/*calculate and discard*/$$=$1;$$=abc_pop($$);} -CODEPIECE: FOR {/*TODO*/$$=code_new();} -CODEPIECE: USE {/*TODO*/$$=code_new();} -CODEPIECE: ASSIGNMENT {/*TODO*/$$=code_new();} +CODEPIECE: USE_NAMESPACE {/*TODO*/$$=code_new();} + +CODEBLOCK : '{' MAYBECODE '}' {$$=$2;} +CODEBLOCK : CODEPIECE ';' {$$=$1;} +CODEBLOCK : CODEPIECE %prec below_semicolon {$$=$1;} + +/* ------------ functions --------------------------- */ + +FUNCTION_DECLARATION: MODIFIERS "function" GETSET T_IDENTIFIER '(' PARAMS ')' + MAYBETYPE '{' {startfunction(0,$1,$3,$4,$6,$8)} MAYBECODE '}' { + if(!state->m) syntaxerror("internal error: undefined function"); + state->m->code = code_append(state->initcode, $11);state->initcode=0; + endfunction() +} + +/* ------------ variables --------------------------- */ + +MAYBEEXPRESSION : '=' EXPRESSION {$$=$2;} + | {$$.c=abc_pushundefined(0); + $$.t=TYPE_ANY; + } + +VAR : "const" | "var" +VARIABLE_DECLARATION : VAR T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION { + if(array_contains(state->vars, $2->text)) + syntaxerror("Variable %s already defined", $2->text); + $$ = $4.c; + + if(!is_subtype_of($4.t, $3)) { + syntaxerror("Can't convert %s to %s", multiname_tostring($4.t), multiname_tostring($3)); + } + + int index = array_append(state->vars, $2->text, $3) + state->local_var_base; + $$ = abc_setlocal($$, index); + + if($3) { + if(TYPE_IS_INT($3) || TYPE_IS_UINT($3) || TYPE_IS_FLOAT($3)) { + state->initcode = abc_pushbyte(state->initcode, 32); + } else if(TYPE_IS_BOOLEAN($3)) { + state->initcode = abc_pushfalse(state->initcode); + } else { + state->initcode = abc_pushnull(state->initcode); + } + state->initcode = abc_setlocal(state->initcode, index); + } /*else { + // that's the default for a local register, anyway + state->initcode = abc_pushundefined(state->initcode); + state->initcode = abc_setlocal(state->initcode, index); + }*/ + printf("variable %s -> %d (%s)\n", $2->text, index, $4.t->name); +} +ASSIGNMENT : T_IDENTIFIER '=' EXPRESSION { + multiname_t*type=0; + int i = find_variable($1->text, &type); + $$ = $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 {$$=$3;} + +IF : "if" '(' {new_state();} EXPRESSION ')' CODEBLOCK MAYBEELSE { + $$=$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 = $$ = abc_label($$); + } + old_state(); +} + +FOR_INIT : {$$=code_new();} +FOR_INIT : ASSIGNMENT | VARIABLE_DECLARATION | VOIDEXPRESSION + +FOR : "for" '(' {new_state();} FOR_INIT ';' EXPRESSION ';' VOIDEXPRESSION ')' CODEBLOCK { + $$ = $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); + $$ = abc_label($$); + myif->branch = $$; + old_state(); +} + +WHILE : "while" '(' {new_state();} EXPRESSION ')' CODEBLOCK { + code_t*myjmp = $$ = abc_jump(0, 0); + code_t*loopstart = $$ = abc_label($$); + $$ = code_append($$, $6); + myjmp->branch = $$ = abc_label($$); + $$ = code_append($$, $4.c); + $$ = abc_iftrue($$, loopstart); + old_state(); +} + +BREAK : "break" { + $$ = abc___break__(0); +} + +/* ------------ packages and imports ---------------- */ PACKAGE_DECLARATION : "package" MULTILEVELIDENTIFIER '{' {startpackage($2)} MAYBECODE '}' {endpackage()} PACKAGE_DECLARATION : "package" '{' {startpackage(0)} MAYBECODE '}' {endpackage()} @@ -572,8 +754,6 @@ MAYBETYPE: {$$=0;} //FUNCTION_HEADER: NAMESPACE MODIFIERS T_FUNCTION GETSET T_IDENTIFIER '(' PARAMS ')' FUNCTION_HEADER: MODIFIERS "function" GETSET T_IDENTIFIER '(' PARAMS ')' MAYBETYPE -FUNCTION_DECLARATION: MODIFIERS "function" GETSET T_IDENTIFIER '(' PARAMS ')' - MAYBETYPE '{' {startfunction(0,$1,$3,$4,$6,$8)} MAYBECODE '}' {endfunction()} NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER '=' T_IDENTIFIER @@ -582,98 +762,159 @@ NAMESPACE_DECLARATION : MODIFIERS KW_NAMESPACE T_IDENTIFIER '=' T_STRING //NAMESPACE : {$$=empty_token();} //NAMESPACE : T_IDENTIFIER {$$=$1}; -CONSTANT : T_BYTE {$$ = abc_pushbyte(0, $1);} -CONSTANT : T_SHORT {$$ = abc_pushshort(0, $1);} -CONSTANT : T_INT {$$ = abc_pushint(0, $1);} -CONSTANT : T_UINT {$$ = abc_pushuint(0, $1);} -CONSTANT : T_FLOAT {$$ = abc_pushdouble(0, $1);} -CONSTANT : T_STRING {$$ = abc_pushstring(0, $1->text);} -CONSTANT : KW_TRUE {$$ = abc_pushtrue(0);} -CONSTANT : KW_FALSE {$$ = abc_pushfalse(0);} -CONSTANT : KW_NULL {$$ = abc_pushnull(0);} +CONSTANT : T_BYTE {$$.c = abc_pushbyte(0, $1); + $$.c = abc_coerce2($$.c, registry_getintclass()); // 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); + $$.t = TYPE_NULL; + } + +USE_NAMESPACE : "use" "namespace" T_IDENTIFIER -VAR : "const" | "var" - -// type annotation -// TODO: NAMESPACE - -VARIABLE_DECLARATION : MODIFIERS VAR T_IDENTIFIER MAYBETYPE MAYBEEXPRESSION { - int i = newvariable($1,$2,$3,$4); - $$=code_new(); - $$ = $5; - $$ = abc_setlocal($$, i); -} - -MAYBEEXPRESSION : '=' EXPRESSION {$$=$2;} - | {$$=code_new();} EXPRESSION : E %prec prec_none /*precendence below '-x'*/ {$$ = $1;} +VOIDEXPRESSION : E %prec prec_none {$$=$1.c;/*calculate and discard*/$$=abc_pop($$);} E : CONSTANT E : VAR_READ %prec T_IDENTIFIER {$$ = $1;} -E : NEW {$$ = abc_pushundefined(0); /* FIXME */} -E : T_REGEXP {$$ = abc_pushundefined(0); /* FIXME */} +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 -E : E '>' E -E : E "<=" E -E : E ">=" E -E : E "==" E -E : E '+' E +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 E : E '/' E -E : E '%' E -E : 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;} -NEW : "new" T_IDENTIFIER - | "new" T_IDENTIFIER '(' ')' - | "new" T_IDENTIFIER '(' EXPRESSION_LIST ')' +E : LH "+=" E {$$.c = $1.read;$$.c=code_append($$.c,$3.c);$$.c=abc_add($$.c); + $$.c=abc_coerce2($$.c, registry_getintclass()); // FIXME + $$.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($$.c); + $$.c=abc_coerce2($$.c, registry_getintclass()); // FIXME + $$.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($$.c); + $$.c=abc_coerce2($$.c, registry_getintclass()); //FIXME + $$.c=abc_dup($$.c);$$.c=code_append($$.c,$1.write); + $$.t = $1.type; + } +E : LH "--" {$$.c = $1.read;$$.c=abc_decrement($$.c); + $$.c=abc_coerce2($$.c, registry_getintclass()); //FIXME + $$.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); + $$.write = abc_setlocal(0, i); +} + +NEW : "new" T_IDENTIFIER {$$.c=0;$$.t=0;/*FIXME*/} + | "new" T_IDENTIFIER '(' ')' {$$.c=0;$$.t=0;/*FIXME*/} + | "new" T_IDENTIFIER '(' EXPRESSION_LIST ')' {$$.c=0;$$.t=0;/*FIXME*/} FUNCTIONCALL : T_IDENTIFIER '(' MAYBE_EXPRESSION_LIST ')' { /* TODO: use abc_call (for calling local variables), abc_callstatic (for calling own methods) */ - $$ = code_new(); - $$ = abc_findproperty($$, $1->text); - code_list_t*l = $3; + $$.c = code_new(); + $$.c = abc_findpropstrict($$.c, $1->text); + typedcode_list_t*l = $3; // push parameters on stack + int len = 0; while(l) { - $$ = code_append($$, l->code); - l = l->next; + $$.c = code_append($$.c, l->typedcode.c); + l = l->nxt; + len ++; } - $$ = abc_callproperty($$, $1->text, list_length($3)); + $$.c = abc_callproperty($$.c, $1->text, len); } -MAYBE_EXPRESSION_LIST : {} +MAYBE_EXPRESSION_LIST : {$$=0;} MAYBE_EXPRESSION_LIST : EXPRESSION_LIST -EXPRESSION_LIST : EXPRESSION {$$=list_new();list_append($$,$1);} -EXPRESSION_LIST : EXPRESSION_LIST ',' EXPRESSION {list_append($$,$3);} +EXPRESSION_LIST : EXPRESSION {$$=malloc(sizeof(typedcode_list_t)); + $$->nxt = 0; + $$->typedcode = $1;} +EXPRESSION_LIST : EXPRESSION_LIST ',' EXPRESSION {$$=malloc(sizeof(typedcode_list_t)); + $$->nxt = $1; + $$->typedcode = $3; + } VAR_READ : T_IDENTIFIER { - int i = array_find(state->vars, $1->text); - if(i<0) - syntaxerror("unknown variable"); - $$ = abc_getlocal(0, i); + int i = find_variable($1->text, &$$.t); + $$.c = abc_getlocal(0, i); } -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 : "var" VARIABLE MAYBETYPE '=' EXPRESSION - -FOR : "for" '(' NEW_ASSIGNMENT ';' EXPRESSION ';' EXPRESSION ')' '{' MAYBECODE '}' -FOR : "for" '(' ASSIGNMENT ';' EXPRESSION ';' EXPRESSION ')' '{' MAYBECODE '}' -USE : "use" KW_NAMESPACE T_IDENTIFIER +//VARIABLE : T_IDENTIFIER +//VARIABLE : VARIABLE '.' T_IDENTIFIER +//VARIABLE : VARIABLE ".." T_IDENTIFIER // descendants +//VARIABLE : VARIABLE "::" VARIABLE // namespace declaration +//VARIABLE : VARIABLE "::" '[' EXPRESSION ']' // qualified expression +//VARIABLE : VARIABLE '[' EXPRESSION ']' // unqualified expression // keywords which also may be identifiers X_IDENTIFIER : T_IDENTIFIER | KW_PACKAGE