vbscript: Added compiler support for equality expression.

dlls/vbscript/compile.c

@@ -176,11 +176,28 @@ static HRESULT compile_unary_expression(compile_ctx_t *ctx, unary_expression_t *
     return push_instr(ctx, op) == -1 ? E_OUTOFMEMORY : S_OK;
 }
 
+static HRESULT compile_binary_expression(compile_ctx_t *ctx, binary_expression_t *expr, vbsop_t op)
+{
+    HRESULT hres;
+
+    hres = compile_expression(ctx, expr->left);
+    if(FAILED(hres))
+        return hres;
+
+    hres = compile_expression(ctx, expr->right);
+    if(FAILED(hres))
+        return hres;
+
+    return push_instr(ctx, op) == -1 ? E_OUTOFMEMORY : S_OK;
+}
+
 static HRESULT compile_expression(compile_ctx_t *ctx, expression_t *expr)
 {
     switch(expr->type) {
     case EXPR_BOOL:
         return push_instr_int(ctx, OP_bool, ((bool_expression_t*)expr)->value);
+    case EXPR_EQUAL:
+        return compile_binary_expression(ctx, (binary_expression_t*)expr, OP_equal);
     case EXPR_NOT:
         return compile_unary_expression(ctx, (unary_expression_t*)expr, OP_not);
     case EXPR_STRING:

dlls/vbscript/interp.c

@@ -253,6 +253,12 @@ static HRESULT interp_not(exec_ctx_t *ctx)
     return stack_push(ctx, &v);
 }
 
+static HRESULT interp_equal(exec_ctx_t *ctx)
+{
+    FIXME("\n");
+    return E_NOTIMPL;
+}
+
 static const instr_func_t op_funcs[] = {
 #define X(x,n,a,b) interp_ ## x,
 OP_LIST

dlls/vbscript/vbscript.h

@@ -76,6 +76,7 @@ typedef enum {
 
 #define OP_LIST                                   \
     X(bool,           1, ARG_INT,     0)          \
+    X(equal,          1, 0,           0)          \
     X(icallv,         1, ARG_BSTR,    ARG_UINT)   \
     X(not,            1, 0,           0)          \
     X(ret,            0, 0,           0)          \