Reduce build latency and fix old cpu bugs

third_party/quickjs/mem.c

@@ -0,0 +1,189 @@
+/*
+ * QuickJS Javascript Engine
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ * Copyright (c) 2017-2021 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "third_party/quickjs/internal.h"
+#include "third_party/quickjs/libregexp.h"
+#include "third_party/quickjs/quickjs.h"
+
+asm(".ident\t\"\\n\\n\
+QuickJS (MIT License)\\n\
+Copyright (c) 2017-2021 Fabrice Bellard\\n\
+Copyright (c) 2017-2021 Charlie Gordon\"");
+asm(".include \"libc/disclaimer.inc\"");
+/* clang-format off */
+
+JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx)
+{
+    return JS_ThrowTypeError(ctx, "revoked proxy");
+}
+
+JSValue JS_ThrowTypeErrorInvalidClass(JSContext *ctx, int class_id)
+{
+    JSRuntime *rt = ctx->rt;
+    JSAtom name;
+    name = rt->class_array[class_id].class_name;
+    return JS_ThrowTypeErrorAtom(ctx, "%s object expected", name);
+}
+
+/* warning: the refcount of the context is not incremented. Return
+   NULL in case of exception (case of revoked proxy only) */
+JSContext *JS_GetFunctionRealm(JSContext *ctx, JSValueConst func_obj)
+{
+    JSObject *p;
+    JSContext *realm;
+    
+    if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
+        return ctx;
+    p = JS_VALUE_GET_OBJ(func_obj);
+    switch(p->class_id) {
+    case JS_CLASS_C_FUNCTION:
+        realm = p->u.cfunc.realm;
+        break;
+    case JS_CLASS_BYTECODE_FUNCTION:
+    case JS_CLASS_GENERATOR_FUNCTION:
+    case JS_CLASS_ASYNC_FUNCTION:
+    case JS_CLASS_ASYNC_GENERATOR_FUNCTION:
+        {
+            JSFunctionBytecode *b;
+            b = p->u.func.function_bytecode;
+            realm = b->realm;
+        }
+        break;
+    case JS_CLASS_PROXY:
+        {
+            JSProxyData *s = p->u.opaque;
+            if (!s)
+                return ctx;
+            if (s->is_revoked) {
+                JS_ThrowTypeErrorRevokedProxy(ctx);
+                return NULL;
+            } else {
+                realm = JS_GetFunctionRealm(ctx, s->target);
+            }
+        }
+        break;
+    case JS_CLASS_BOUND_FUNCTION:
+        {
+            JSBoundFunction *bf = p->u.bound_function;
+            realm = JS_GetFunctionRealm(ctx, bf->func_obj);
+        }
+        break;
+    default:
+        realm = ctx;
+        break;
+    }
+    return realm;
+}
+
+JSValue js_create_from_ctor(JSContext *ctx, JSValueConst ctor,
+                            int class_id)
+{
+    JSValue proto, obj;
+    JSContext *realm;
+    
+    if (JS_IsUndefined(ctor)) {
+        proto = JS_DupValue(ctx, ctx->class_proto[class_id]);
+    } else {
+        proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype);
+        if (JS_IsException(proto))
+            return proto;
+        if (!JS_IsObject(proto)) {
+            JS_FreeValue(ctx, proto);
+            realm = JS_GetFunctionRealm(ctx, ctor);
+            if (!realm)
+                return JS_EXCEPTION;
+            proto = JS_DupValue(ctx, realm->class_proto[class_id]);
+        }
+    }
+    obj = JS_NewObjectProtoClass(ctx, proto, class_id);
+    JS_FreeValue(ctx, proto);
+    return obj;
+}
+
+int JS_ToBoolFree(JSContext *ctx, JSValue val)
+{
+    uint32_t tag = JS_VALUE_GET_TAG(val);
+    switch(tag) {
+    case JS_TAG_INT:
+        return JS_VALUE_GET_INT(val) != 0;
+    case JS_TAG_BOOL:
+    case JS_TAG_NULL:
+    case JS_TAG_UNDEFINED:
+        return JS_VALUE_GET_INT(val);
+    case JS_TAG_EXCEPTION:
+        return -1;
+    case JS_TAG_STRING:
+        {
+            BOOL ret = JS_VALUE_GET_STRING(val)->len != 0;
+            JS_FreeValue(ctx, val);
+            return ret;
+        }
+#ifdef CONFIG_BIGNUM
+    case JS_TAG_BIG_INT:
+    case JS_TAG_BIG_FLOAT:
+        {
+            JSBigFloat *p = JS_VALUE_GET_PTR(val);
+            BOOL ret;
+            ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN;
+            JS_FreeValue(ctx, val);
+            return ret;
+        }
+    case JS_TAG_BIG_DECIMAL:
+        {
+            JSBigDecimal *p = JS_VALUE_GET_PTR(val);
+            BOOL ret;
+            ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN;
+            JS_FreeValue(ctx, val);
+            return ret;
+        }
+#endif
+    case JS_TAG_OBJECT:
+        {
+            JSObject *p = JS_VALUE_GET_OBJ(val);
+            BOOL ret;
+            ret = !p->is_HTMLDDA;
+            JS_FreeValue(ctx, val);
+            return ret;
+        }
+        break;
+    default:
+        if (JS_TAG_IS_FLOAT64(tag)) {
+            double d = JS_VALUE_GET_FLOAT64(val);
+            return !isnan(d) && d != 0;
+        } else {
+            JS_FreeValue(ctx, val);
+            return TRUE;
+        }
+    }
+}
+
+int JS_ToBool(JSContext *ctx, JSValueConst val)
+{
+    return JS_ToBoolFree(ctx, JS_DupValue(ctx, val));
+}
+
+JSValue js_get_this(JSContext *ctx, JSValueConst this_val)
+{
+    return JS_DupValue(ctx, this_val);
+}