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jscript: Use bytecode for '<<' expression implementation.

This commit is contained in:
Jacek Caban 2011-12-09 11:04:57 +01:00 committed by Alexandre Julliard
parent 7904932a9e
commit a80392e5ea
4 changed files with 16 additions and 6 deletions
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2
dlls/jscript/compile.c
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@ -667,6 +667,8 @@ static HRESULT compile_expression_noret(compiler_ctx_t *ctx, expression_t *expr,
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:

16
dlls/jscript/engine.c
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@ -3113,13 +3113,21 @@ static HRESULT lshift_eval(script_ctx_t *ctx, VARIANT *lval, VARIANT *rval, jsex
}
/* ECMA-262 3rd Edition 11.7.1 */
HRESULT left_shift_expression_eval(script_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
static HRESULT interp_lshift(exec_ctx_t *ctx)
{
binary_expression_t *expr = (binary_expression_t*)_expr;
DWORD r;
INT l;
HRESULT hres;
TRACE("\n");
hres = stack_pop_uint(ctx, &r);
if(FAILED(hres))
return hres;
return binary_expr_eval(ctx, expr, lshift_eval, ei, ret);
hres = stack_pop_int(ctx, &l);
if(FAILED(hres))
return hres;
return stack_push_int(ctx, l << (r&0x1f));
}
/* ECMA-262 3rd Edition 11.7.2 */

2
dlls/jscript/engine.h
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@ -65,6 +65,7 @@ typedef struct _func_stack {
X(jmp, 0, ARG_ADDR, 0) \
X(jmp_nz, 0, ARG_ADDR, 0) \
X(jmp_z, 0, ARG_ADDR, 0) \
X(lshift, 1, 0,0) \
X(lt, 1, 0,0) \
X(lteq, 1, 0,0) \
X(member, 1, ARG_BSTR, 0) \
@ -567,7 +568,6 @@ HRESULT property_value_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcep
HRESULT instanceof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
HRESULT delete_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
HRESULT typeof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
HRESULT left_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
HRESULT assign_lshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
HRESULT compiled_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;

2
dlls/jscript/parser.y
View File

@ -1336,7 +1336,7 @@ static const expression_eval_t expression_eval_table[] = {
compiled_expression_eval,
compiled_expression_eval,
compiled_expression_eval,
left_shift_expression_eval,
compiled_expression_eval,
compiled_expression_eval,
compiled_expression_eval,
compiled_expression_eval,