From 2a7c9f1b922218ed1505d77812f8e1187efec81f Mon Sep 17 00:00:00 2001
From: Jacek Caban <jacek@codeweavers.com>
Date: Tue, 9 Sep 2008 01:22:13 +0200
Subject: [PATCH] jscript: Added identifier expression implementation.

---
 dlls/jscript/engine.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 60 insertions(+), 3 deletions(-)

diff --git a/dlls/jscript/engine.c b/dlls/jscript/engine.c
index 72f723d4ca6..36339398e89 100644
--- a/dlls/jscript/engine.c
+++ b/dlls/jscript/engine.c
@@ -86,6 +86,16 @@ static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsexcept_t *e
     return exprval_value(ctx, val, ei, ret);
 }
 
+static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
+{
+    val->type = EXPRVAL_IDREF;
+    val->u.idref.disp = disp;
+    val->u.idref.id = id;
+
+    if(disp)
+        IDispatch_AddRef(disp);
+}
+
 HRESULT create_exec_ctx(exec_ctx_t **ret)
 {
     exec_ctx_t *ctx;
@@ -106,6 +116,13 @@ void exec_release(exec_ctx_t *ctx)
     heap_free(ctx);
 }
 
+static HRESULT dispex_get_id(IDispatchEx *dispex, BSTR name, DWORD flags, DISPID *id)
+{
+    *id = 0;
+
+    return IDispatchEx_GetDispID(dispex, name, flags|fdexNameCaseSensitive, id);
+}
+
 HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *source, jsexcept_t *ei, VARIANT *retv)
 {
     script_ctx_t *script = parser->script;
@@ -158,6 +175,33 @@ HRESULT exec_source(exec_ctx_t *ctx, parser_ctx_t *parser, source_elements_t *so
     return S_OK;
 }
 
+/* ECMA-262 3rd Edition    10.1.4 */
+static HRESULT identifier_eval(exec_ctx_t *ctx, BSTR identifier, DWORD flags, exprval_t *ret)
+{
+    DISPID id = 0;
+    HRESULT hres;
+
+    TRACE("%s\n", debugstr_w(identifier));
+
+    /* FIXME: scope chain */
+    /* FIXME: global */
+    /* FIXME: named items */
+
+    hres = dispex_get_id(_IDispatchEx_(ctx->parser->script->script_disp), identifier, 0, &id);
+    if(SUCCEEDED(hres)) {
+        exprval_set_idref(ret, (IDispatch*)_IDispatchEx_(ctx->parser->script->script_disp), id);
+        return S_OK;
+    }
+
+    if(flags & EXPR_NEWREF) {
+        FIXME("create ref\n");
+        return E_NOTIMPL;
+    }
+
+    WARN("Could not find identifier %s\n", debugstr_w(identifier));
+    return E_FAIL;
+}
+
 HRESULT block_statement_eval(exec_ctx_t *ctx, statement_t *stat, return_type_t *rt, VARIANT *ret)
 {
     FIXME("\n");
@@ -323,10 +367,23 @@ HRESULT this_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, j
     return E_NOTIMPL;
 }
 
-HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
+/* ECMA-262 3rd Edition    10.1.4 */
+HRESULT identifier_expression_eval(exec_ctx_t *ctx, expression_t *_expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    identifier_expression_t *expr = (identifier_expression_t*)_expr;
+    BSTR identifier;
+    HRESULT hres;
+
+    TRACE("\n");
+
+    identifier = SysAllocString(expr->identifier);
+    if(!identifier)
+        return E_OUTOFMEMORY;
+
+    hres = identifier_eval(ctx, identifier, flags, ret);
+
+    SysFreeString(identifier);
+    return hres;
 }
 
 HRESULT literal_expression_eval(exec_ctx_t *ctx, expression_t *expr, DWORD flags, jsexcept_t *ei, exprval_t *ret)
-- 
2.11.4.GIT