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1814 lines
50 KiB
C
1814 lines
50 KiB
C
/*
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* Copyright 2011 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <math.h>
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#include <assert.h>
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#include "jscript.h"
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#include "engine.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(jscript);
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WINE_DECLARE_DEBUG_CHANNEL(jscript_disas);
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typedef struct _statement_ctx_t {
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unsigned stack_use;
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BOOL using_scope;
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BOOL using_except;
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unsigned break_label;
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unsigned continue_label;
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const labelled_statement_t *labelled_stat;
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struct _statement_ctx_t *next;
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} statement_ctx_t;
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typedef struct {
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parser_ctx_t *parser;
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bytecode_t *code;
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unsigned code_off;
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unsigned code_size;
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unsigned *labels;
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unsigned labels_size;
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unsigned labels_cnt;
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statement_ctx_t *stat_ctx;
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} compiler_ctx_t;
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static const struct {
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const char *op_str;
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instr_arg_type_t arg1_type;
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instr_arg_type_t arg2_type;
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} instr_info[] = {
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#define X(n,a,b,c) {#n,b,c},
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OP_LIST
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#undef X
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};
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static void dump_instr_arg(instr_arg_type_t type, instr_arg_t *arg)
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{
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switch(type) {
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case ARG_STR:
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TRACE_(jscript_disas)("\t%s", debugstr_w(arg->str));
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break;
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case ARG_BSTR:
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TRACE_(jscript_disas)("\t%s", debugstr_wn(arg->bstr, SysStringLen(arg->bstr)));
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break;
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case ARG_INT:
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TRACE_(jscript_disas)("\t%d", arg->uint);
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break;
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case ARG_UINT:
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case ARG_ADDR:
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TRACE_(jscript_disas)("\t%u", arg->uint);
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break;
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case ARG_DBL:
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TRACE_(jscript_disas)("\t%lf", *arg->dbl);
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break;
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case ARG_FUNC:
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case ARG_NONE:
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break;
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default:
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assert(0);
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}
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}
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static void dump_code(compiler_ctx_t *ctx, unsigned off)
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{
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instr_t *instr;
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for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->code_off; instr++) {
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TRACE_(jscript_disas)("%d:\t%s", (int)(instr-ctx->code->instrs), instr_info[instr->op].op_str);
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dump_instr_arg(instr_info[instr->op].arg1_type, &instr->arg1);
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dump_instr_arg(instr_info[instr->op].arg2_type, &instr->arg2);
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TRACE_(jscript_disas)("\n");
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}
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}
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static HRESULT compile_expression(compiler_ctx_t*,expression_t*);
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static HRESULT compile_statement(compiler_ctx_t*,statement_ctx_t*,statement_t*);
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static inline void *compiler_alloc(bytecode_t *code, size_t size)
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{
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return jsheap_alloc(&code->heap, size);
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}
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static WCHAR *compiler_alloc_string(bytecode_t *code, const WCHAR *str)
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{
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size_t size;
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WCHAR *ret;
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size = (strlenW(str)+1)*sizeof(WCHAR);
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ret = compiler_alloc(code, size);
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if(ret)
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memcpy(ret, str, size);
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return ret;
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}
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static BSTR compiler_alloc_bstr(compiler_ctx_t *ctx, const WCHAR *str)
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{
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if(!ctx->code->bstr_pool_size) {
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ctx->code->bstr_pool = heap_alloc(8 * sizeof(BSTR));
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if(!ctx->code->bstr_pool)
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return NULL;
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ctx->code->bstr_pool_size = 8;
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}else if(ctx->code->bstr_pool_size == ctx->code->bstr_cnt) {
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BSTR *new_pool;
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new_pool = heap_realloc(ctx->code->bstr_pool, ctx->code->bstr_pool_size*2*sizeof(BSTR));
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if(!new_pool)
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return NULL;
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ctx->code->bstr_pool = new_pool;
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ctx->code->bstr_pool_size *= 2;
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}
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ctx->code->bstr_pool[ctx->code->bstr_cnt] = SysAllocString(str);
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if(!ctx->code->bstr_pool[ctx->code->bstr_cnt])
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return NULL;
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return ctx->code->bstr_pool[ctx->code->bstr_cnt++];
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}
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static unsigned push_instr(compiler_ctx_t *ctx, jsop_t op)
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{
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assert(ctx->code_size >= ctx->code_off);
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if(ctx->code_size == ctx->code_off) {
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instr_t *new_instrs;
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new_instrs = heap_realloc(ctx->code->instrs, ctx->code_size*2*sizeof(instr_t));
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if(!new_instrs)
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return 0;
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ctx->code->instrs = new_instrs;
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ctx->code_size *= 2;
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}
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ctx->code->instrs[ctx->code_off].op = op;
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return ctx->code_off++;
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}
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static inline instr_t *instr_ptr(compiler_ctx_t *ctx, unsigned off)
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{
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assert(off < ctx->code_off);
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return ctx->code->instrs + off;
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}
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static HRESULT push_instr_int(compiler_ctx_t *ctx, jsop_t op, LONG arg)
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{
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unsigned instr;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.lng = arg;
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return S_OK;
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}
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static HRESULT push_instr_str(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg)
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{
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unsigned instr;
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WCHAR *str;
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str = compiler_alloc_string(ctx->code, arg);
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if(!str)
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return E_OUTOFMEMORY;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.str = str;
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return S_OK;
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}
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static HRESULT push_instr_bstr(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg)
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{
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unsigned instr;
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WCHAR *str;
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str = compiler_alloc_bstr(ctx, arg);
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if(!str)
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return E_OUTOFMEMORY;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.bstr = str;
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return S_OK;
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}
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static HRESULT push_instr_bstr_uint(compiler_ctx_t *ctx, jsop_t op, const WCHAR *arg1, unsigned arg2)
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{
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unsigned instr;
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WCHAR *str;
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str = compiler_alloc_bstr(ctx, arg1);
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if(!str)
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return E_OUTOFMEMORY;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.bstr = str;
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instr_ptr(ctx, instr)->arg2.uint = arg2;
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return S_OK;
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}
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static HRESULT push_instr_uint_str(compiler_ctx_t *ctx, jsop_t op, unsigned arg1, const WCHAR *arg2)
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{
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unsigned instr;
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WCHAR *str;
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str = compiler_alloc_string(ctx->code, arg2);
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if(!str)
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return E_OUTOFMEMORY;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.uint = arg1;
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instr_ptr(ctx, instr)->arg2.str = str;
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return S_OK;
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}
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static HRESULT push_instr_double(compiler_ctx_t *ctx, jsop_t op, double arg)
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{
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unsigned instr;
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DOUBLE *dbl;
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dbl = compiler_alloc(ctx->code, sizeof(arg));
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if(!dbl)
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return E_OUTOFMEMORY;
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*dbl = arg;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.dbl = dbl;
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return S_OK;
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}
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static HRESULT push_instr_uint(compiler_ctx_t *ctx, jsop_t op, unsigned arg)
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{
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unsigned instr;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, instr)->arg1.uint = arg;
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return S_OK;
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}
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static HRESULT compile_binary_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
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{
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression1);
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if(FAILED(hres))
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return hres;
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hres = compile_expression(ctx, expr->expression2);
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if(FAILED(hres))
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return hres;
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return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
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}
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static HRESULT compile_unary_expression(compiler_ctx_t *ctx, unary_expression_t *expr, jsop_t op)
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{
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression);
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if(FAILED(hres))
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return hres;
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return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
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}
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/* ECMA-262 3rd Edition 11.2.1 */
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static HRESULT compile_member_expression(compiler_ctx_t *ctx, member_expression_t *expr)
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{
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression);
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if(FAILED(hres))
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return hres;
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return push_instr_bstr(ctx, OP_member, expr->identifier);
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}
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#define LABEL_FLAG 0x80000000
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static unsigned alloc_label(compiler_ctx_t *ctx)
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{
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if(!ctx->labels_size) {
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ctx->labels = heap_alloc(8 * sizeof(*ctx->labels));
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if(!ctx->labels)
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return 0;
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ctx->labels_size = 8;
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}else if(ctx->labels_size == ctx->labels_cnt) {
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unsigned *new_labels;
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new_labels = heap_realloc(ctx->labels, 2*ctx->labels_size*sizeof(*ctx->labels));
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if(!new_labels)
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return 0;
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ctx->labels = new_labels;
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ctx->labels_size *= 2;
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}
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return ctx->labels_cnt++ | LABEL_FLAG;
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}
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static void label_set_addr(compiler_ctx_t *ctx, unsigned label)
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{
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assert(label & LABEL_FLAG);
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ctx->labels[label & ~LABEL_FLAG] = ctx->code_off;
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}
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static inline BOOL is_memberid_expr(expression_type_t type)
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{
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return type == EXPR_IDENT || type == EXPR_MEMBER || type == EXPR_ARRAY;
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}
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static HRESULT compile_memberid_expression(compiler_ctx_t *ctx, expression_t *expr, unsigned flags)
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{
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HRESULT hres = S_OK;
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switch(expr->type) {
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case EXPR_IDENT: {
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identifier_expression_t *ident_expr = (identifier_expression_t*)expr;
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hres = push_instr_bstr_uint(ctx, OP_identid, ident_expr->identifier, flags);
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break;
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}
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case EXPR_ARRAY: {
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binary_expression_t *array_expr = (binary_expression_t*)expr;
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hres = compile_expression(ctx, array_expr->expression1);
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if(FAILED(hres))
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return hres;
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hres = compile_expression(ctx, array_expr->expression2);
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if(FAILED(hres))
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return hres;
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hres = push_instr_uint(ctx, OP_memberid, flags);
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break;
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}
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case EXPR_MEMBER: {
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member_expression_t *member_expr = (member_expression_t*)expr;
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hres = compile_expression(ctx, member_expr->expression);
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if(FAILED(hres))
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return hres;
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/* FIXME: Potential optimization */
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hres = push_instr_str(ctx, OP_str, member_expr->identifier);
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if(FAILED(hres))
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return hres;
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hres = push_instr_uint(ctx, OP_memberid, flags);
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break;
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}
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default:
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assert(0);
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}
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return hres;
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}
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static HRESULT compile_increment_expression(compiler_ctx_t *ctx, unary_expression_t *expr, jsop_t op, int n)
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{
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HRESULT hres;
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if(!is_memberid_expr(expr->expression->type)) {
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hres = compile_expression(ctx, expr->expression);
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if(FAILED(hres))
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return hres;
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return push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
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}
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hres = compile_memberid_expression(ctx, expr->expression, fdexNameEnsure);
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if(FAILED(hres))
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return hres;
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return push_instr_int(ctx, op, n);
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}
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/* ECMA-262 3rd Edition 11.14 */
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static HRESULT compile_comma_expression(compiler_ctx_t *ctx, binary_expression_t *expr)
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{
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression1);
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if(FAILED(hres))
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return hres;
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if(!push_instr(ctx, OP_pop))
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return E_OUTOFMEMORY;
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return compile_expression(ctx, expr->expression2);
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}
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/* ECMA-262 3rd Edition 11.11 */
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static HRESULT compile_logical_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
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{
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unsigned instr;
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression1);
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if(FAILED(hres))
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return hres;
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instr = push_instr(ctx, op);
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if(!instr)
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return E_OUTOFMEMORY;
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hres = compile_expression(ctx, expr->expression2);
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if(FAILED(hres))
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return hres;
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instr_ptr(ctx, instr)->arg1.uint = ctx->code_off;
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return S_OK;
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}
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/* ECMA-262 3rd Edition 11.12 */
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static HRESULT compile_conditional_expression(compiler_ctx_t *ctx, conditional_expression_t *expr)
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{
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unsigned jmp_false, jmp_end;
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression);
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if(FAILED(hres))
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return hres;
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jmp_false = push_instr(ctx, OP_cnd_z);
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if(!jmp_false)
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return E_OUTOFMEMORY;
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hres = compile_expression(ctx, expr->true_expression);
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if(FAILED(hres))
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return hres;
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jmp_end = push_instr(ctx, OP_jmp);
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if(!jmp_end)
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return E_OUTOFMEMORY;
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instr_ptr(ctx, jmp_false)->arg1.uint = ctx->code_off;
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if(!push_instr(ctx, OP_pop))
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return E_OUTOFMEMORY;
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hres = compile_expression(ctx, expr->false_expression);
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if(FAILED(hres))
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return hres;
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instr_ptr(ctx, jmp_end)->arg1.uint = ctx->code_off;
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return S_OK;
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}
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static HRESULT compile_new_expression(compiler_ctx_t *ctx, call_expression_t *expr)
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{
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unsigned arg_cnt = 0;
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argument_t *arg;
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HRESULT hres;
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hres = compile_expression(ctx, expr->expression);
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if(FAILED(hres))
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return hres;
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for(arg = expr->argument_list; arg; arg = arg->next) {
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hres = compile_expression(ctx, arg->expr);
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if(FAILED(hres))
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return hres;
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arg_cnt++;
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}
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return push_instr_int(ctx, OP_new, arg_cnt);
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}
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static HRESULT compile_call_expression(compiler_ctx_t *ctx, call_expression_t *expr, BOOL *no_ret)
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{
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unsigned arg_cnt = 0;
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argument_t *arg;
|
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unsigned instr;
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jsop_t op;
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HRESULT hres;
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if(is_memberid_expr(expr->expression->type)) {
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op = OP_call_member;
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hres = compile_memberid_expression(ctx, expr->expression, 0);
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}else {
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op = OP_call;
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hres = compile_expression(ctx, expr->expression);
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}
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if(FAILED(hres))
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return hres;
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|
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for(arg = expr->argument_list; arg; arg = arg->next) {
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hres = compile_expression(ctx, arg->expr);
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|
if(FAILED(hres))
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return hres;
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arg_cnt++;
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}
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|
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instr = push_instr(ctx, op);
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|
if(!instr)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, instr)->arg1.uint = arg_cnt;
|
|
instr_ptr(ctx, instr)->arg2.lng = no_ret == NULL;
|
|
if(no_ret)
|
|
*no_ret = TRUE;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_delete_expression(compiler_ctx_t *ctx, unary_expression_t *expr)
|
|
{
|
|
HRESULT hres;
|
|
|
|
switch(expr->expression->type) {
|
|
case EXPR_ARRAY: {
|
|
binary_expression_t *array_expr = (binary_expression_t*)expr->expression;
|
|
|
|
hres = compile_expression(ctx, array_expr->expression1);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = compile_expression(ctx, array_expr->expression2);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_delete))
|
|
return E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
case EXPR_MEMBER: {
|
|
member_expression_t *member_expr = (member_expression_t*)expr->expression;
|
|
|
|
hres = compile_expression(ctx, member_expr->expression);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
/* FIXME: Potential optimization */
|
|
hres = push_instr_str(ctx, OP_str, member_expr->identifier);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_delete))
|
|
return E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
case EXPR_IDENT:
|
|
return push_instr_bstr(ctx, OP_delete_ident, ((identifier_expression_t*)expr->expression)->identifier);
|
|
default: {
|
|
const WCHAR fixmeW[] = {'F','I','X','M','E',0};
|
|
|
|
WARN("invalid delete, unimplemented exception message\n");
|
|
|
|
hres = compile_expression(ctx, expr->expression);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
return push_instr_uint_str(ctx, OP_throw_type, JS_E_INVALID_DELETE, fixmeW);
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_assign_expression(compiler_ctx_t *ctx, binary_expression_t *expr, jsop_t op)
|
|
{
|
|
HRESULT hres;
|
|
|
|
if(!is_memberid_expr(expr->expression1->type)) {
|
|
hres = compile_expression(ctx, expr->expression1);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = compile_expression(ctx, expr->expression2);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(op != OP_LAST && !push_instr(ctx, op))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
|
|
}
|
|
|
|
hres = compile_memberid_expression(ctx, expr->expression1, fdexNameEnsure);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(op != OP_LAST && !push_instr(ctx, OP_refval))
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_expression(ctx, expr->expression2);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(op != OP_LAST && !push_instr(ctx, op))
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(!push_instr(ctx, OP_assign))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_typeof_expression(compiler_ctx_t *ctx, unary_expression_t *expr)
|
|
{
|
|
jsop_t op;
|
|
HRESULT hres;
|
|
|
|
if(is_memberid_expr(expr->expression->type)) {
|
|
if(expr->expression->type == EXPR_IDENT)
|
|
return push_instr_str(ctx, OP_typeofident, ((identifier_expression_t*)expr->expression)->identifier);
|
|
|
|
op = OP_typeofid;
|
|
hres = compile_memberid_expression(ctx, expr->expression, 0);
|
|
}else {
|
|
op = OP_typeof;
|
|
hres = compile_expression(ctx, expr->expression);
|
|
}
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
return push_instr(ctx, op) ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
|
|
static HRESULT compile_literal(compiler_ctx_t *ctx, literal_t *literal)
|
|
{
|
|
switch(literal->type) {
|
|
case LT_BOOL:
|
|
return push_instr_int(ctx, OP_bool, literal->u.bval);
|
|
case LT_DOUBLE:
|
|
return push_instr_double(ctx, OP_double, literal->u.dval);
|
|
case LT_INT:
|
|
return push_instr_int(ctx, OP_int, literal->u.lval);
|
|
case LT_NULL:
|
|
return push_instr(ctx, OP_null) ? S_OK : E_OUTOFMEMORY;
|
|
case LT_STRING:
|
|
return push_instr_str(ctx, OP_str, literal->u.wstr);
|
|
case LT_REGEXP: {
|
|
unsigned instr;
|
|
WCHAR *str;
|
|
|
|
str = compiler_alloc(ctx->code, (literal->u.regexp.str_len+1)*sizeof(WCHAR));
|
|
if(!str)
|
|
return E_OUTOFMEMORY;
|
|
memcpy(str, literal->u.regexp.str, literal->u.regexp.str_len*sizeof(WCHAR));
|
|
str[literal->u.regexp.str_len] = 0;
|
|
|
|
instr = push_instr(ctx, OP_regexp);
|
|
if(!instr)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, instr)->arg1.str = str;
|
|
instr_ptr(ctx, instr)->arg2.lng = literal->u.regexp.flags;
|
|
return S_OK;
|
|
}
|
|
default:
|
|
assert(0);
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
static HRESULT literal_as_bstr(compiler_ctx_t *ctx, literal_t *literal, BSTR *str)
|
|
{
|
|
switch(literal->type) {
|
|
case LT_STRING:
|
|
*str = compiler_alloc_bstr(ctx, literal->u.wstr);
|
|
break;
|
|
case LT_INT:
|
|
*str = int_to_bstr(literal->u.lval);
|
|
break;
|
|
case LT_DOUBLE:
|
|
return double_to_bstr(literal->u.dval, str);
|
|
default:
|
|
assert(0);
|
|
}
|
|
|
|
return *str ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
|
|
static HRESULT compile_array_literal(compiler_ctx_t *ctx, array_literal_expression_t *expr)
|
|
{
|
|
unsigned i, elem_cnt = expr->length;
|
|
array_element_t *iter;
|
|
HRESULT hres;
|
|
|
|
for(iter = expr->element_list; iter; iter = iter->next) {
|
|
elem_cnt += iter->elision+1;
|
|
|
|
for(i=0; i < iter->elision; i++) {
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
hres = compile_expression(ctx, iter->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
for(i=0; i < expr->length; i++) {
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
return push_instr_uint(ctx, OP_carray, elem_cnt);
|
|
}
|
|
|
|
static HRESULT compile_object_literal(compiler_ctx_t *ctx, property_value_expression_t *expr)
|
|
{
|
|
prop_val_t *iter;
|
|
unsigned instr;
|
|
BSTR name;
|
|
HRESULT hres;
|
|
|
|
if(!push_instr(ctx, OP_new_obj))
|
|
return E_OUTOFMEMORY;
|
|
|
|
for(iter = expr->property_list; iter; iter = iter->next) {
|
|
hres = literal_as_bstr(ctx, iter->name, &name);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = compile_expression(ctx, iter->value);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
instr = push_instr(ctx, OP_obj_prop);
|
|
if(!instr)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, instr)->arg1.bstr = name;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_function_expression(compiler_ctx_t *ctx, function_expression_t *expr)
|
|
{
|
|
unsigned instr;
|
|
|
|
/* FIXME: not exactly right */
|
|
if(expr->identifier)
|
|
return push_instr_bstr(ctx, OP_ident, expr->identifier);
|
|
|
|
instr = push_instr(ctx, OP_func);
|
|
if(!instr)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, instr)->arg1.func = expr;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_expression_noret(compiler_ctx_t *ctx, expression_t *expr, BOOL *no_ret)
|
|
{
|
|
switch(expr->type) {
|
|
case EXPR_ADD:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_add);
|
|
case EXPR_AND:
|
|
return compile_logical_expression(ctx, (binary_expression_t*)expr, OP_cnd_z);
|
|
case EXPR_ARRAY:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_array);
|
|
case EXPR_ARRAYLIT:
|
|
return compile_array_literal(ctx, (array_literal_expression_t*)expr);
|
|
case EXPR_ASSIGN:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_LAST);
|
|
case EXPR_ASSIGNADD:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_add);
|
|
case EXPR_ASSIGNAND:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_and);
|
|
case EXPR_ASSIGNSUB:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_sub);
|
|
case EXPR_ASSIGNMUL:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_mul);
|
|
case EXPR_ASSIGNDIV:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_div);
|
|
case EXPR_ASSIGNMOD:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_mod);
|
|
case EXPR_ASSIGNOR:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_or);
|
|
case EXPR_ASSIGNLSHIFT:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_lshift);
|
|
case EXPR_ASSIGNRSHIFT:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_rshift);
|
|
case EXPR_ASSIGNRRSHIFT:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_rshift2);
|
|
case EXPR_ASSIGNXOR:
|
|
return compile_assign_expression(ctx, (binary_expression_t*)expr, OP_xor);
|
|
case EXPR_BAND:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_and);
|
|
case EXPR_BITNEG:
|
|
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_bneg);
|
|
case EXPR_BOR:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_or);
|
|
case EXPR_CALL:
|
|
return compile_call_expression(ctx, (call_expression_t*)expr, no_ret);
|
|
case EXPR_COMMA:
|
|
return compile_comma_expression(ctx, (binary_expression_t*)expr);
|
|
case EXPR_COND:
|
|
return compile_conditional_expression(ctx, (conditional_expression_t*)expr);
|
|
case EXPR_DELETE:
|
|
return compile_delete_expression(ctx, (unary_expression_t*)expr);
|
|
case EXPR_DIV:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_div);
|
|
case EXPR_EQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eq);
|
|
case EXPR_EQEQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_eq2);
|
|
case EXPR_FUNC:
|
|
return compile_function_expression(ctx, (function_expression_t*)expr);
|
|
case EXPR_GREATER:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gt);
|
|
case EXPR_GREATEREQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_gteq);
|
|
case EXPR_IDENT:
|
|
return push_instr_bstr(ctx, OP_ident, ((identifier_expression_t*)expr)->identifier);
|
|
case EXPR_IN:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_in);
|
|
case EXPR_INSTANCEOF:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_instanceof);
|
|
case EXPR_LESS:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lt);
|
|
case EXPR_LESSEQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lteq);
|
|
case EXPR_LITERAL:
|
|
return compile_literal(ctx, ((literal_expression_t*)expr)->literal);
|
|
case EXPR_LOGNEG:
|
|
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_neg);
|
|
case EXPR_LSHIFT:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_lshift);
|
|
case EXPR_MEMBER:
|
|
return compile_member_expression(ctx, (member_expression_t*)expr);
|
|
case EXPR_MINUS:
|
|
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_minus);
|
|
case EXPR_MOD:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mod);
|
|
case EXPR_MUL:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_mul);
|
|
case EXPR_NEW:
|
|
return compile_new_expression(ctx, (call_expression_t*)expr);
|
|
case EXPR_NOTEQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_neq);
|
|
case EXPR_NOTEQEQ:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_neq2);
|
|
case EXPR_OR:
|
|
return compile_logical_expression(ctx, (binary_expression_t*)expr, OP_cnd_nz);
|
|
case EXPR_PLUS:
|
|
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_tonum);
|
|
case EXPR_POSTDEC:
|
|
return compile_increment_expression(ctx, (unary_expression_t*)expr, OP_postinc, -1);
|
|
case EXPR_POSTINC:
|
|
return compile_increment_expression(ctx, (unary_expression_t*)expr, OP_postinc, 1);
|
|
case EXPR_PREDEC:
|
|
return compile_increment_expression(ctx, (unary_expression_t*)expr, OP_preinc, -1);
|
|
case EXPR_PREINC:
|
|
return compile_increment_expression(ctx, (unary_expression_t*)expr, OP_preinc, 1);
|
|
case EXPR_PROPVAL:
|
|
return compile_object_literal(ctx, (property_value_expression_t*)expr);
|
|
case EXPR_RSHIFT:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift);
|
|
case EXPR_RRSHIFT:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_rshift2);
|
|
case EXPR_SUB:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_sub);
|
|
case EXPR_THIS:
|
|
return push_instr(ctx, OP_this) ? S_OK : E_OUTOFMEMORY;
|
|
case EXPR_TYPEOF:
|
|
return compile_typeof_expression(ctx, (unary_expression_t*)expr);
|
|
case EXPR_VOID:
|
|
return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_void);
|
|
case EXPR_BXOR:
|
|
return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_xor);
|
|
default:
|
|
assert(0);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_expression(compiler_ctx_t *ctx, expression_t *expr)
|
|
{
|
|
return compile_expression_noret(ctx, expr, NULL);
|
|
}
|
|
|
|
static inline BOOL is_loop_statement(statement_type_t type)
|
|
{
|
|
return type == STAT_FOR || type == STAT_FORIN || type == STAT_WHILE;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.1 */
|
|
static HRESULT compile_block_statement(compiler_ctx_t *ctx, statement_t *iter)
|
|
{
|
|
HRESULT hres;
|
|
|
|
/* FIXME: do it only if needed */
|
|
if(!iter)
|
|
return push_instr(ctx, OP_undefined) ? S_OK : E_OUTOFMEMORY;
|
|
|
|
while(1) {
|
|
hres = compile_statement(ctx, NULL, iter);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
iter = iter->next;
|
|
if(!iter)
|
|
break;
|
|
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.2 */
|
|
static HRESULT compile_variable_list(compiler_ctx_t *ctx, variable_declaration_t *list)
|
|
{
|
|
variable_declaration_t *iter;
|
|
HRESULT hres;
|
|
|
|
for(iter = list; iter; iter = iter->next) {
|
|
if(!iter->expr)
|
|
continue;
|
|
|
|
hres = compile_expression(ctx, iter->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = push_instr_bstr(ctx, OP_var_set, iter->identifier);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.2 */
|
|
static HRESULT compile_var_statement(compiler_ctx_t *ctx, var_statement_t *stat)
|
|
{
|
|
HRESULT hres;
|
|
|
|
hres = compile_variable_list(ctx, stat->variable_list);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
return push_instr(ctx, OP_undefined) ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.4 */
|
|
static HRESULT compile_expression_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
|
|
{
|
|
BOOL no_ret = FALSE;
|
|
HRESULT hres;
|
|
|
|
hres = compile_expression_noret(ctx, stat->expr, &no_ret);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
/* FIXME: that's a big potential optimization */
|
|
if(no_ret && !push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.5 */
|
|
static HRESULT compile_if_statement(compiler_ctx_t *ctx, if_statement_t *stat)
|
|
{
|
|
unsigned jmp_else, jmp_end;
|
|
HRESULT hres;
|
|
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
jmp_else = push_instr(ctx, OP_jmp_z);
|
|
if(!jmp_else)
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, NULL, stat->if_stat);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
jmp_end = push_instr(ctx, OP_jmp);
|
|
if(!jmp_end)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, jmp_else)->arg1.uint = ctx->code_off;
|
|
|
|
if(stat->else_stat) {
|
|
hres = compile_statement(ctx, NULL, stat->else_stat);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}else {
|
|
/* FIXME: We could sometimes avoid it */
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
instr_ptr(ctx, jmp_end)->arg1.uint = ctx->code_off;
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.6.2 */
|
|
static HRESULT compile_while_statement(compiler_ctx_t *ctx, while_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {0, FALSE, FALSE};
|
|
unsigned jmp_off;
|
|
HRESULT hres;
|
|
|
|
stat_ctx.break_label = alloc_label(ctx);
|
|
if(!stat_ctx.break_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
stat_ctx.continue_label = alloc_label(ctx);
|
|
if(!stat_ctx.continue_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(!stat->do_while) {
|
|
/* FIXME: avoid */
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
jmp_off = ctx->code_off;
|
|
label_set_addr(ctx, stat_ctx.continue_label);
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}else {
|
|
jmp_off = ctx->code_off;
|
|
}
|
|
|
|
hres = compile_statement(ctx, &stat_ctx, stat->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(stat->do_while) {
|
|
label_set_addr(ctx, stat_ctx.continue_label);
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp, jmp_off);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
label_set_addr(ctx, stat_ctx.break_label);
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.6.3 */
|
|
static HRESULT compile_for_statement(compiler_ctx_t *ctx, for_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {0, FALSE, FALSE};
|
|
unsigned expr_off;
|
|
HRESULT hres;
|
|
|
|
if(stat->variable_list) {
|
|
hres = compile_variable_list(ctx, stat->variable_list);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}else if(stat->begin_expr) {
|
|
BOOL no_ret = FALSE;
|
|
|
|
hres = compile_expression_noret(ctx, stat->begin_expr, &no_ret);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
if(!no_ret && !push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
stat_ctx.break_label = alloc_label(ctx);
|
|
if(!stat_ctx.break_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
stat_ctx.continue_label = alloc_label(ctx);
|
|
if(!stat_ctx.continue_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
/* FIXME: avoid */
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
expr_off = ctx->code_off;
|
|
|
|
if(stat->expr) {
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp_z, stat_ctx.break_label);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, &stat_ctx, stat->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
label_set_addr(ctx, stat_ctx.continue_label);
|
|
|
|
if(stat->end_expr) {
|
|
BOOL no_ret = FALSE;
|
|
|
|
hres = compile_expression_noret(ctx, stat->end_expr, &no_ret);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!no_ret && !push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp, expr_off);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
label_set_addr(ctx, stat_ctx.break_label);
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.6.4 */
|
|
static HRESULT compile_forin_statement(compiler_ctx_t *ctx, forin_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {4, FALSE, FALSE};
|
|
HRESULT hres;
|
|
|
|
if(stat->variable) {
|
|
hres = compile_variable_list(ctx, stat->variable);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
stat_ctx.break_label = alloc_label(ctx);
|
|
if(!stat_ctx.break_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
stat_ctx.continue_label = alloc_label(ctx);
|
|
if(!stat_ctx.continue_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_expression(ctx, stat->in_expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(stat->variable) {
|
|
hres = push_instr_bstr_uint(ctx, OP_identid, stat->variable->identifier, fdexNameEnsure);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}else if(is_memberid_expr(stat->expr->type)) {
|
|
hres = compile_memberid_expression(ctx, stat->expr, fdexNameEnsure);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}else {
|
|
hres = push_instr_uint(ctx, OP_throw_ref, JS_E_ILLEGAL_ASSIGN);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
/* FIXME: compile statement anyways when we depend on compiler to check errors */
|
|
return S_OK;
|
|
}
|
|
|
|
hres = push_instr_int(ctx, OP_int, DISPID_STARTENUM);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
/* FIXME: avoid */
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
label_set_addr(ctx, stat_ctx.continue_label);
|
|
hres = push_instr_uint(ctx, OP_forin, stat_ctx.break_label);
|
|
if(FAILED(hres))
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, &stat_ctx, stat->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
hres = push_instr_uint(ctx, OP_jmp, stat_ctx.continue_label);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
label_set_addr(ctx, stat_ctx.break_label);
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT pop_to_stat(compiler_ctx_t *ctx, statement_ctx_t *stat_ctx)
|
|
{
|
|
unsigned stack_pop = 0;
|
|
statement_ctx_t *iter;
|
|
|
|
for(iter = ctx->stat_ctx; iter != stat_ctx; iter = iter->next) {
|
|
if(iter->using_scope && !push_instr(ctx, OP_pop_scope))
|
|
return E_OUTOFMEMORY;
|
|
if(iter->using_except && !push_instr(ctx, OP_pop_except))
|
|
return E_OUTOFMEMORY;
|
|
stack_pop += iter->stack_use;
|
|
}
|
|
|
|
/* FIXME: optimize */
|
|
while(stack_pop--) {
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.7 */
|
|
static HRESULT compile_continue_statement(compiler_ctx_t *ctx, branch_statement_t *stat)
|
|
{
|
|
statement_ctx_t *pop_ctx;
|
|
HRESULT hres;
|
|
|
|
if(stat->identifier) {
|
|
statement_t *label_stat;
|
|
statement_ctx_t *iter;
|
|
|
|
pop_ctx = NULL;
|
|
|
|
for(iter = ctx->stat_ctx; iter; iter = iter->next) {
|
|
if(iter->continue_label)
|
|
pop_ctx = iter;
|
|
if(iter->labelled_stat && !strcmpW(iter->labelled_stat->identifier, stat->identifier))
|
|
break;
|
|
}
|
|
|
|
if(!iter) {
|
|
WARN("Label not found\n");
|
|
return JS_E_LABEL_NOT_FOUND;
|
|
}
|
|
|
|
/* Labelled continue are allowed only on loops */
|
|
for(label_stat = iter->labelled_stat->statement;
|
|
label_stat->type == STAT_LABEL;
|
|
label_stat = ((labelled_statement_t*)label_stat)->statement);
|
|
if(!is_loop_statement(label_stat->type)) {
|
|
WARN("Label is not a loop\n");
|
|
return JS_E_INVALID_CONTINUE;
|
|
}
|
|
}else {
|
|
for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
|
|
if(pop_ctx->continue_label)
|
|
break;
|
|
}
|
|
|
|
if(!pop_ctx) {
|
|
WARN("continue outside loop\n");
|
|
return JS_E_INVALID_CONTINUE;
|
|
}
|
|
}
|
|
|
|
hres = pop_to_stat(ctx, pop_ctx);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return push_instr_uint(ctx, OP_jmp, pop_ctx->continue_label);
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.8 */
|
|
static HRESULT compile_break_statement(compiler_ctx_t *ctx, branch_statement_t *stat)
|
|
{
|
|
statement_ctx_t *pop_ctx;
|
|
HRESULT hres;
|
|
|
|
if(stat->identifier) {
|
|
for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
|
|
if(pop_ctx->labelled_stat && !strcmpW(pop_ctx->labelled_stat->identifier, stat->identifier)) {
|
|
assert(pop_ctx->break_label);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!pop_ctx) {
|
|
WARN("Label not found\n");
|
|
return JS_E_LABEL_NOT_FOUND;
|
|
}
|
|
}else {
|
|
for(pop_ctx = ctx->stat_ctx; pop_ctx; pop_ctx = pop_ctx->next) {
|
|
if(pop_ctx->break_label && !pop_ctx->labelled_stat)
|
|
break;
|
|
}
|
|
|
|
if(!pop_ctx) {
|
|
WARN("Break outside loop\n");
|
|
return JS_E_INVALID_BREAK;
|
|
}
|
|
}
|
|
|
|
hres = pop_to_stat(ctx, pop_ctx->next);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return push_instr_uint(ctx, OP_jmp, pop_ctx->break_label);
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.9 */
|
|
static HRESULT compile_return_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
|
|
{
|
|
HRESULT hres;
|
|
|
|
hres = pop_to_stat(ctx, NULL);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(stat->expr) {
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
return push_instr(ctx, OP_ret) ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.10 */
|
|
static HRESULT compile_with_statement(compiler_ctx_t *ctx, with_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {0, TRUE, FALSE};
|
|
HRESULT hres;
|
|
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_push_scope))
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, &stat_ctx, stat->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_pop_scope))
|
|
return E_OUTOFMEMORY;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.10 */
|
|
static HRESULT compile_labelled_statement(compiler_ctx_t *ctx, labelled_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {0, FALSE, FALSE, 0, 0, stat}, *iter;
|
|
HRESULT hres;
|
|
|
|
for(iter = ctx->stat_ctx; iter; iter = iter->next) {
|
|
if(iter->labelled_stat && !strcmpW(iter->labelled_stat->identifier, stat->identifier)) {
|
|
WARN("Label %s redefined\n", debugstr_w(stat->identifier));
|
|
return JS_E_LABEL_REDEFINED;
|
|
}
|
|
}
|
|
|
|
/* Labelled breaks are allowed for any labelled statements, not only loops (violating spec) */
|
|
stat_ctx.break_label = alloc_label(ctx);
|
|
if(!stat_ctx.break_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, &stat_ctx, stat->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
label_set_addr(ctx, stat_ctx.break_label);
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.13 */
|
|
static HRESULT compile_switch_statement(compiler_ctx_t *ctx, switch_statement_t *stat)
|
|
{
|
|
statement_ctx_t stat_ctx = {0, FALSE, FALSE};
|
|
unsigned case_cnt = 0, *case_jmps, i, default_jmp;
|
|
BOOL have_default = FALSE;
|
|
statement_t *stat_iter;
|
|
case_clausule_t *iter;
|
|
HRESULT hres;
|
|
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
stat_ctx.break_label = alloc_label(ctx);
|
|
if(!stat_ctx.break_label)
|
|
return E_OUTOFMEMORY;
|
|
|
|
for(iter = stat->case_list; iter; iter = iter->next) {
|
|
if(iter->expr)
|
|
case_cnt++;
|
|
}
|
|
|
|
case_jmps = heap_alloc(case_cnt * sizeof(*case_jmps));
|
|
if(!case_jmps)
|
|
return E_OUTOFMEMORY;
|
|
|
|
i = 0;
|
|
for(iter = stat->case_list; iter; iter = iter->next) {
|
|
if(!iter->expr) {
|
|
have_default = TRUE;
|
|
continue;
|
|
}
|
|
|
|
hres = compile_expression(ctx, iter->expr);
|
|
if(FAILED(hres))
|
|
break;
|
|
|
|
case_jmps[i] = push_instr(ctx, OP_case);
|
|
if(!case_jmps[i]) {
|
|
hres = E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
|
|
if(SUCCEEDED(hres)) {
|
|
if(push_instr(ctx, OP_pop)) {
|
|
default_jmp = push_instr(ctx, OP_jmp);
|
|
if(!default_jmp)
|
|
hres = E_OUTOFMEMORY;
|
|
}else {
|
|
hres = E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
if(FAILED(hres)) {
|
|
heap_free(case_jmps);
|
|
return hres;
|
|
}
|
|
|
|
i = 0;
|
|
for(iter = stat->case_list; iter; iter = iter->next) {
|
|
while(iter->next && iter->next->stat == iter->stat) {
|
|
instr_ptr(ctx, iter->expr ? case_jmps[i++] : default_jmp)->arg1.uint = ctx->code_off;
|
|
iter = iter->next;
|
|
}
|
|
|
|
instr_ptr(ctx, iter->expr ? case_jmps[i++] : default_jmp)->arg1.uint = ctx->code_off;
|
|
|
|
for(stat_iter = iter->stat; stat_iter && (!iter->next || iter->next->stat != stat_iter); stat_iter = stat_iter->next) {
|
|
hres = compile_statement(ctx, &stat_ctx, stat_iter);
|
|
if(FAILED(hres))
|
|
break;
|
|
|
|
if(stat_iter->next && !push_instr(ctx, OP_pop)) {
|
|
hres = E_OUTOFMEMORY;
|
|
break;
|
|
}
|
|
}
|
|
if(FAILED(hres))
|
|
break;
|
|
}
|
|
|
|
heap_free(case_jmps);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
assert(i == case_cnt);
|
|
|
|
if(!have_default) {
|
|
hres = push_instr_uint(ctx, OP_jmp, stat_ctx.break_label);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
instr_ptr(ctx, default_jmp)->arg1.uint = ctx->code_off;
|
|
if(!push_instr(ctx, OP_undefined))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
label_set_addr(ctx, stat_ctx.break_label);
|
|
return S_OK;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.13 */
|
|
static HRESULT compile_throw_statement(compiler_ctx_t *ctx, expression_statement_t *stat)
|
|
{
|
|
HRESULT hres;
|
|
|
|
hres = compile_expression(ctx, stat->expr);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
return push_instr(ctx, OP_throw) ? S_OK : E_OUTOFMEMORY;
|
|
}
|
|
|
|
/* ECMA-262 3rd Edition 12.14 */
|
|
static HRESULT compile_try_statement(compiler_ctx_t *ctx, try_statement_t *stat)
|
|
{
|
|
statement_ctx_t try_ctx = {0, FALSE, TRUE}, catch_ctx = {0, TRUE, FALSE};
|
|
statement_ctx_t finally_ctx = {2, FALSE, FALSE};
|
|
unsigned push_except;
|
|
BSTR ident;
|
|
HRESULT hres;
|
|
|
|
push_except = push_instr(ctx, OP_push_except);
|
|
if(!push_except)
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(stat->catch_block) {
|
|
ident = compiler_alloc_bstr(ctx, stat->catch_block->identifier);
|
|
if(!ident)
|
|
return E_OUTOFMEMORY;
|
|
}else {
|
|
ident = NULL;
|
|
}
|
|
|
|
instr_ptr(ctx, push_except)->arg2.bstr = ident;
|
|
|
|
if(!stat->catch_block)
|
|
try_ctx.stack_use = 2;
|
|
|
|
hres = compile_statement(ctx, &try_ctx, stat->try_statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_pop_except))
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(stat->catch_block) {
|
|
unsigned jmp_finally;
|
|
|
|
jmp_finally = push_instr(ctx, OP_jmp);
|
|
if(!jmp_finally)
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, push_except)->arg1.uint = ctx->code_off;
|
|
|
|
hres = compile_statement(ctx, &catch_ctx, stat->catch_block->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!push_instr(ctx, OP_pop_scope))
|
|
return E_OUTOFMEMORY;
|
|
|
|
instr_ptr(ctx, jmp_finally)->arg1.uint = ctx->code_off;
|
|
}else {
|
|
instr_ptr(ctx, push_except)->arg1.uint = ctx->code_off;
|
|
}
|
|
|
|
if(stat->finally_statement) {
|
|
/* FIXME: avoid */
|
|
if(!push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
|
|
hres = compile_statement(ctx, stat->catch_block ? NULL : &finally_ctx, stat->finally_statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(!stat->catch_block && !push_instr(ctx, OP_end_finally))
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_statement(compiler_ctx_t *ctx, statement_ctx_t *stat_ctx, statement_t *stat)
|
|
{
|
|
HRESULT hres;
|
|
|
|
if(stat_ctx) {
|
|
stat_ctx->next = ctx->stat_ctx;
|
|
ctx->stat_ctx = stat_ctx;
|
|
}
|
|
|
|
switch(stat->type) {
|
|
case STAT_BLOCK:
|
|
hres = compile_block_statement(ctx, ((block_statement_t*)stat)->stat_list);
|
|
break;
|
|
case STAT_BREAK:
|
|
hres = compile_break_statement(ctx, (branch_statement_t*)stat);
|
|
break;
|
|
case STAT_CONTINUE:
|
|
hres = compile_continue_statement(ctx, (branch_statement_t*)stat);
|
|
break;
|
|
case STAT_EMPTY:
|
|
hres = push_instr(ctx, OP_undefined) ? S_OK : E_OUTOFMEMORY; /* FIXME */
|
|
break;
|
|
case STAT_EXPR:
|
|
hres = compile_expression_statement(ctx, (expression_statement_t*)stat);
|
|
break;
|
|
case STAT_FOR:
|
|
hres = compile_for_statement(ctx, (for_statement_t*)stat);
|
|
break;
|
|
case STAT_FORIN:
|
|
hres = compile_forin_statement(ctx, (forin_statement_t*)stat);
|
|
break;
|
|
case STAT_IF:
|
|
hres = compile_if_statement(ctx, (if_statement_t*)stat);
|
|
break;
|
|
case STAT_LABEL:
|
|
hres = compile_labelled_statement(ctx, (labelled_statement_t*)stat);
|
|
break;
|
|
case STAT_RETURN:
|
|
hres = compile_return_statement(ctx, (expression_statement_t*)stat);
|
|
break;
|
|
case STAT_SWITCH:
|
|
hres = compile_switch_statement(ctx, (switch_statement_t*)stat);
|
|
break;
|
|
case STAT_THROW:
|
|
hres = compile_throw_statement(ctx, (expression_statement_t*)stat);
|
|
break;
|
|
case STAT_TRY:
|
|
hres = compile_try_statement(ctx, (try_statement_t*)stat);
|
|
break;
|
|
case STAT_VAR:
|
|
hres = compile_var_statement(ctx, (var_statement_t*)stat);
|
|
break;
|
|
case STAT_WHILE:
|
|
hres = compile_while_statement(ctx, (while_statement_t*)stat);
|
|
break;
|
|
case STAT_WITH:
|
|
hres = compile_with_statement(ctx, (with_statement_t*)stat);
|
|
break;
|
|
default:
|
|
assert(0);
|
|
hres = E_FAIL;
|
|
}
|
|
|
|
if(stat_ctx) {
|
|
assert(ctx->stat_ctx == stat_ctx);
|
|
ctx->stat_ctx = stat_ctx->next;
|
|
}
|
|
|
|
return hres;
|
|
}
|
|
|
|
static void resolve_labels(compiler_ctx_t *ctx, unsigned off)
|
|
{
|
|
instr_t *instr;
|
|
|
|
for(instr = ctx->code->instrs+off; instr < ctx->code->instrs+ctx->code_off; instr++) {
|
|
if(instr_info[instr->op].arg1_type == ARG_ADDR && (instr->arg1.uint & LABEL_FLAG)) {
|
|
assert((instr->arg1.uint & ~LABEL_FLAG) < ctx->labels_cnt);
|
|
instr->arg1.uint = ctx->labels[instr->arg1.uint & ~LABEL_FLAG];
|
|
}
|
|
assert(instr_info[instr->op].arg2_type != ARG_ADDR);
|
|
}
|
|
|
|
ctx->labels_cnt = 0;
|
|
}
|
|
|
|
void release_bytecode(bytecode_t *code)
|
|
{
|
|
unsigned i;
|
|
|
|
if(--code->ref)
|
|
return;
|
|
|
|
if(code->parser)
|
|
parser_release(code->parser);
|
|
|
|
for(i=0; i < code->bstr_cnt; i++)
|
|
SysFreeString(code->bstr_pool[i]);
|
|
|
|
heap_free(code->source);
|
|
jsheap_free(&code->heap);
|
|
heap_free(code->bstr_pool);
|
|
heap_free(code->instrs);
|
|
heap_free(code);
|
|
}
|
|
|
|
static HRESULT init_code(compiler_ctx_t *compiler, const WCHAR *source)
|
|
{
|
|
compiler->code = heap_alloc_zero(sizeof(bytecode_t));
|
|
if(!compiler->code)
|
|
return E_OUTOFMEMORY;
|
|
|
|
compiler->code->ref = 1;
|
|
jsheap_init(&compiler->code->heap);
|
|
|
|
compiler->code->source = heap_strdupW(source);
|
|
if(!compiler->code->source) {
|
|
release_bytecode(compiler->code);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
compiler->code->instrs = heap_alloc(64 * sizeof(instr_t));
|
|
if(!compiler->code->instrs) {
|
|
release_bytecode(compiler->code);
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
compiler->code_size = 64;
|
|
compiler->code_off = 1;
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT compile_function(compiler_ctx_t *ctx, source_elements_t *source, BOOL from_eval)
|
|
{
|
|
function_declaration_t *iter;
|
|
unsigned off;
|
|
HRESULT hres;
|
|
|
|
TRACE("\n");
|
|
|
|
off = ctx->code_off;
|
|
hres = compile_block_statement(ctx, source->statement);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
resolve_labels(ctx, off);
|
|
|
|
if(!from_eval && !push_instr(ctx, OP_pop))
|
|
return E_OUTOFMEMORY;
|
|
if(!push_instr(ctx, OP_ret))
|
|
return E_OUTOFMEMORY;
|
|
|
|
if(TRACE_ON(jscript_disas))
|
|
dump_code(ctx, off);
|
|
|
|
source->instr_off = off;
|
|
|
|
for(iter = source->functions; iter; iter = iter->next) {
|
|
hres = compile_function(ctx, iter->expr->source_elements, FALSE);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT compile_script(script_ctx_t *ctx, const WCHAR *code, const WCHAR *delimiter, BOOL from_eval, BOOL use_decode,
|
|
bytecode_t **ret)
|
|
{
|
|
compiler_ctx_t compiler = {0};
|
|
HRESULT hres;
|
|
|
|
hres = init_code(&compiler, code);
|
|
if(FAILED(hres))
|
|
return hres;
|
|
|
|
if(use_decode) {
|
|
hres = decode_source(compiler.code->source);
|
|
if(FAILED(hres)) {
|
|
WARN("Decoding failed\n");
|
|
return hres;
|
|
}
|
|
}
|
|
|
|
hres = script_parse(ctx, compiler.code->source, delimiter, from_eval, &compiler.parser);
|
|
if(FAILED(hres)) {
|
|
release_bytecode(compiler.code);
|
|
return hres;
|
|
}
|
|
|
|
compiler.code->parser = compiler.parser;
|
|
|
|
hres = compile_function(&compiler, compiler.parser->source, from_eval);
|
|
if(FAILED(hres)) {
|
|
release_bytecode(compiler.code);
|
|
return hres;
|
|
}
|
|
|
|
*ret = compiler.code;
|
|
return S_OK;
|
|
}
|