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vbscript: Added interp_step implementation.

This commit is contained in:
Jacek Caban 2011-09-22 14:23:51 +02:00 committed by Alexandre Julliard
parent aad758921c
commit d55aa556ad
1 changed files with 39 additions and 2 deletions
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41
dlls/vbscript/interp.c
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@ -245,6 +245,12 @@ static inline VARIANT *stack_pop(exec_ctx_t *ctx)
return ctx->stack + --ctx->top;
}
static inline VARIANT *stack_top(exec_ctx_t *ctx, unsigned n)
{
assert(ctx->top >= n);
return ctx->stack + (ctx->top-n-1);
}
static HRESULT stack_push(exec_ctx_t *ctx, VARIANT *v)
{
if(ctx->stack_size == ctx->top) {
@ -745,8 +751,39 @@ static HRESULT interp_new(exec_ctx_t *ctx)
static HRESULT interp_step(exec_ctx_t *ctx)
{
const BSTR ident = ctx->instr->arg2.bstr;
FIXME("%s\n", debugstr_w(ident));
return E_NOTIMPL;
BOOL gteq_zero;
VARIANT zero;
ref_t ref;
HRESULT hres;
TRACE("%s\n", debugstr_w(ident));
V_VT(&zero) = VT_I2;
V_I2(&zero) = 0;
hres = VarCmp(stack_top(ctx, 0), &zero, ctx->script->lcid, 0);
if(FAILED(hres))
return hres;
gteq_zero = hres == VARCMP_GT || hres == VARCMP_EQ;
hres = lookup_identifier(ctx, ident, VBDISP_ANY, &ref);
if(FAILED(hres))
return hres;
if(ref.type != REF_VAR) {
FIXME("%s is not REF_VAR\n", debugstr_w(ident));
return E_FAIL;
}
hres = VarCmp(ref.u.v, stack_top(ctx, 1), ctx->script->lcid, 0);
if(FAILED(hres))
return hres;
if(hres == VARCMP_EQ || hres == (gteq_zero ? VARCMP_LT : VARCMP_GT))
ctx->instr++;
else
instr_jmp(ctx, ctx->instr->arg1.uint);
return S_OK;
}
static HRESULT interp_jmp(exec_ctx_t *ctx)