Author: [EMAIL PROTECTED]
Date: Mon Nov 10 06:27:08 2008
New Revision: 724
Modified:
branches/bleeding_edge/src/d8.cc
branches/bleeding_edge/src/flag-definitions.h
branches/bleeding_edge/src/flags.cc
branches/bleeding_edge/src/flags.h
branches/bleeding_edge/test/cctest/test-flags.cc
Log:
Flag passes rest of command line to the shell/scripts being run.
Arguments on the command line are made available as a global "arguments"
array.
Modified: branches/bleeding_edge/src/d8.cc
==============================================================================
--- branches/bleeding_edge/src/d8.cc (original)
+++ branches/bleeding_edge/src/d8.cc Mon Nov 10 06:27:08 2008
@@ -235,6 +235,19 @@
utility_context_->SetSecurityToken(Undefined());
Context::Scope utility_scope(utility_context_);
+ i::JSArguments js_args = i::FLAG_js_arguments;
+ i::Handle<i::FixedArray> arguments_array =
+ i::Factory::NewFixedArray(js_args.argc());
+ for (int j = 0; j < js_args.argc(); j++) {
+ i::Handle<i::String> arg =
+ i::Factory::NewStringFromUtf8(i::CStrVector(js_args[j]));
+ arguments_array->set(j, *arg);
+ }
+ i::Handle<i::JSArray> arguments_jsarray =
+ i::Factory::NewJSArrayWithElements(arguments_array);
+ global_template->Set(String::New("arguments"),
+ Utils::ToLocal(arguments_jsarray));
+
// Install the debugger object in the utility scope
i::Debug::Load();
i::Debug::debug_context()->set_security_token(i::Heap::undefined_value());
Modified: branches/bleeding_edge/src/flag-definitions.h
==============================================================================
--- branches/bleeding_edge/src/flag-definitions.h (original)
+++ branches/bleeding_edge/src/flag-definitions.h Mon Nov 10 06:27:08 2008
@@ -69,10 +69,27 @@
#error No mode supplied when including flags.defs
#endif
+#ifdef FLAG_MODE_DECLARE
+// Structure used to hold a collection of arguments to the JavaScript code.
+struct JSArguments {
+public:
+ JSArguments();
+ JSArguments(int argc, const char** argv);
+ int argc() const;
+ const char** argv();
+ const char*& operator[](int idx);
+ JSArguments& operator=(JSArguments args);
+private:
+ int argc_;
+ const char** argv_;
+};
+#endif
+
#define DEFINE_bool(nam, def, cmt) FLAG(BOOL, bool, nam, def, cmt)
#define DEFINE_int(nam, def, cmt) FLAG(INT, int, nam, def, cmt)
#define DEFINE_float(nam, def, cmt) FLAG(FLOAT, double, nam, def, cmt)
#define DEFINE_string(nam, def, cmt) FLAG(STRING, const char*, nam, def,
cmt)
+#define DEFINE_args(nam, def, cmt) FLAG(ARGS, JSArguments, nam, def, cmt)
//
// Flags in all modes.
@@ -202,6 +219,8 @@
DEFINE_bool(help, false, "Print usage message, including flags, on
console")
DEFINE_bool(dump_counters, false, "Dump counters on exit")
+DEFINE_args(js_arguments, JSArguments(),
+ "Pass all remaining arguments to the script. Alias for
\"--\".")
//
// Debug only flags
Modified: branches/bleeding_edge/src/flags.cc
==============================================================================
--- branches/bleeding_edge/src/flags.cc (original)
+++ branches/bleeding_edge/src/flags.cc Mon Nov 10 06:27:08 2008
@@ -48,7 +48,7 @@
// to the actual flag, default value, comment, etc. This is designed to
be POD
// initialized as to avoid requiring static constructors.
struct Flag {
- enum FlagType { TYPE_BOOL, TYPE_INT, TYPE_FLOAT, TYPE_STRING };
+ enum FlagType { TYPE_BOOL, TYPE_INT, TYPE_FLOAT, TYPE_STRING, TYPE_ARGS
};
FlagType type_; // What type of flag, bool, int, or string.
const char* name_; // Name of the flag, ex "my_flag".
@@ -82,6 +82,11 @@
return reinterpret_cast<const char**>(valptr_);
}
+ JSArguments* args_variable() const {
+ ASSERT(type_ == TYPE_ARGS);
+ return reinterpret_cast<JSArguments*>(valptr_);
+ }
+
bool bool_default() const {
ASSERT(type_ == TYPE_BOOL);
return *reinterpret_cast<const bool*>(defptr_);
@@ -102,6 +107,11 @@
return *reinterpret_cast<const char* const *>(defptr_);
}
+ JSArguments args_default() const {
+ ASSERT(type_ == TYPE_ARGS);
+ return *reinterpret_cast<const JSArguments*>(defptr_);
+ }
+
// Compare this flag's current value against the default.
bool IsDefault() const {
switch (type_) {
@@ -111,12 +121,15 @@
return *int_variable() == int_default();
case TYPE_FLOAT:
return *float_variable() == float_default();
- case TYPE_STRING:
+ case TYPE_STRING: {
const char* str1 = *string_variable();
const char* str2 = string_default();
if (str2 == NULL) return str1 == NULL;
if (str1 == NULL) return str2 == NULL;
return strcmp(str1, str2) == 0;
+ }
+ case TYPE_ARGS:
+ return args_variable()->argc() == 0;
}
UNREACHABLE();
return true;
@@ -137,6 +150,9 @@
case TYPE_STRING:
*string_variable() = string_default();
break;
+ case TYPE_ARGS:
+ *args_variable() = args_default();
+ break;
}
}
};
@@ -157,6 +173,7 @@
case Flag::TYPE_INT: return "int";
case Flag::TYPE_FLOAT: return "float";
case Flag::TYPE_STRING: return "string";
+ case Flag::TYPE_ARGS: return "arguments";
}
UNREACHABLE();
return NULL;
@@ -178,7 +195,7 @@
value = Vector<char>::New(20);
OS::SNPrintF(value, "%f", *flag->float_variable());
break;
- case Flag::TYPE_STRING:
+ case Flag::TYPE_STRING: {
const char* str = *flag->string_variable();
if (str) {
int length = strlen(str) + 1;
@@ -189,6 +206,26 @@
OS::SNPrintF(value, "NULL");
}
break;
+ }
+ case Flag::TYPE_ARGS: {
+ JSArguments args = *flag->args_variable();
+ if (args.argc() == 0) {
+ value = Vector<char>::New(0);
+ break;
+ }
+ int len = args.argc() - 1;
+ for (int i = 0; i < args.argc(); i++) {
+ len += strlen(args[i]);
+ }
+ value = Vector<char>::New(len);
+ for (int i = 0; i < args.argc(); i++) {
+ if (i > 0) {
+ OS::SNPrintF(value, " ");
+ }
+ OS::SNPrintF(value, "%s", args[i]);
+ }
+ break;
+ }
}
ASSERT(!value.is_empty());
return value.start();
@@ -239,8 +276,14 @@
if (*arg == '-') {
// find the begin of the flag name
arg++; // remove 1st '-'
- if (*arg == '-')
+ if (*arg == '-') {
arg++; // remove 2nd '-'
+ if (arg[0] == '\0') {
+ const char* kJSArgumentsFlagName = "js_arguments";
+ *name = kJSArgumentsFlagName;
+ return;
+ }
+ }
if (arg[0] == 'n' && arg[1] == 'o') {
arg += 2; // remove "no"
*is_bool = true;
@@ -324,7 +367,9 @@
}
// if we still need a flag value, use the next argument if available
- if (flag->type() != Flag::TYPE_BOOL && value == NULL) {
+ if (flag->type() != Flag::TYPE_BOOL &&
+ flag->type() != Flag::TYPE_ARGS &&
+ value == NULL) {
if (i < *argc) {
value = argv[i++];
} else {
@@ -350,6 +395,19 @@
case Flag::TYPE_STRING:
*flag->string_variable() = value;
break;
+ case Flag::TYPE_ARGS:
+ int start_pos = (value == NULL) ? i : i - 1;
+ int js_argc = *argc - start_pos;
+ const char** js_argv = new const char*[js_argc];
+ if (value != NULL) {
+ js_argv[0] = value;
+ }
+ for (int k = i; k < *argc; k++) {
+ js_argv[k - start_pos] = argv[k];
+ }
+ *flag->args_variable() = JSArguments(js_argc, js_argv);
+ i = *argc; // Consume all arguments
+ break;
}
// handle errors
@@ -473,5 +531,19 @@
DeleteArray(value);
}
}
+
+JSArguments::JSArguments()
+ : argc_(0), argv_(NULL) {}
+JSArguments::JSArguments(int argc, const char** argv)
+ : argc_(argc), argv_(argv) {}
+int JSArguments::argc() const { return argc_; }
+const char** JSArguments::argv() { return argv_; }
+const char*& JSArguments::operator[](int idx) { return argv_[idx]; }
+JSArguments& JSArguments::operator=(JSArguments args) {
+ argc_ = args.argc_;
+ argv_ = args.argv_;
+ return *this;
+}
+
} } // namespace v8::internal
Modified: branches/bleeding_edge/src/flags.h
==============================================================================
--- branches/bleeding_edge/src/flags.h (original)
+++ branches/bleeding_edge/src/flags.h Mon Nov 10 06:27:08 2008
@@ -35,6 +35,7 @@
#define FLAG_MODE_DECLARE
#include "flag-definitions.h"
+
// The global list of all flags.
class FlagList {
public:
@@ -50,7 +51,7 @@
// set, the flags and associated values are removed from (argc,
// argv). Returns 0 if no error occurred. Otherwise, returns the argv
// index > 0 for the argument where an error occurred. In that case,
- // (argc, argv) will remain unchanged indepdendent of the remove_flags
+ // (argc, argv) will remain unchanged independent of the remove_flags
// value, and no assumptions about flag settings should be made.
//
// The following syntax for flags is accepted (both '-' and '--' are ok):
@@ -59,6 +60,7 @@
// --noflag (bool flags only)
// --flag=value (non-bool flags only, no spaces around '=')
// --flag value (non-bool flags only)
+ // -- (equivalent to --js_arguments, captures all remaining
args)
static int SetFlagsFromCommandLine(int* argc, char** argv, bool
remove_flags);
// Set the flag values by parsing the string str. Splits string into argc
Modified: branches/bleeding_edge/test/cctest/test-flags.cc
==============================================================================
--- branches/bleeding_edge/test/cctest/test-flags.cc (original)
+++ branches/bleeding_edge/test/cctest/test-flags.cc Mon Nov 10 06:27:08
2008
@@ -168,3 +168,67 @@
const char* str = " --testing-int-flag 0
--testing_float_flag ";
CHECK_EQ(3, FlagList::SetFlagsFromString(str, strlen(str)));
}
+
+
+TEST(FlagsJSArguments1) {
+ SetFlagsToDefault();
+ int argc = 6;
+ const char* argv[] = {"TestJSArgs1",
+ "--testing-int-flag", "42",
+ "--", "testing-float-flag", "7"};
+ CHECK_EQ(0, FlagList::SetFlagsFromCommandLine(&argc,
+ const_cast<char **>(argv),
+ true));
+ CHECK_EQ(42, FLAG_testing_int_flag);
+ CHECK_EQ(2.5, FLAG_testing_float_flag);
+ CHECK_EQ(2, FLAG_js_arguments.argc());
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[0], "testing-float-flag"));
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[1], "7"));
+ CHECK_EQ(1, argc);
+}
+
+
+TEST(FlagsJSArguments1b) {
+ SetFlagsToDefault();
+ const char* str = "--testing-int-flag 42 -- testing-float-flag 7";
+ CHECK_EQ(0, FlagList::SetFlagsFromString(str, strlen(str)));
+ CHECK_EQ(42, FLAG_testing_int_flag);
+ CHECK_EQ(2.5, FLAG_testing_float_flag);
+ CHECK_EQ(2, FLAG_js_arguments.argc());
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[0], "testing-float-flag"));
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[1], "7"));
+}
+
+
+TEST(FlagsJSArguments2) {
+ SetFlagsToDefault();
+ const char* str = "--testing-int-flag 42 --js-arguments
testing-float-flag 7";
+ CHECK_EQ(0, FlagList::SetFlagsFromString(str, strlen(str)));
+ CHECK_EQ(42, FLAG_testing_int_flag);
+ CHECK_EQ(2.5, FLAG_testing_float_flag);
+ CHECK_EQ(2, FLAG_js_arguments.argc());
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[0], "testing-float-flag"));
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[1], "7"));
+}
+
+
+TEST(FlagsJSArguments3) {
+ SetFlagsToDefault();
+ const char* str = "--testing-int-flag 42
--js-arguments=testing-float-flag 7";
+ CHECK_EQ(0, FlagList::SetFlagsFromString(str, strlen(str)));
+ CHECK_EQ(42, FLAG_testing_int_flag);
+ CHECK_EQ(2.5, FLAG_testing_float_flag);
+ CHECK_EQ(2, FLAG_js_arguments.argc());
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[0], "testing-float-flag"));
+ CHECK_EQ(0, strcmp(FLAG_js_arguments[1], "7"));
+}
+
+
+TEST(FlagsJSArguments4) {
+ SetFlagsToDefault();
+ const char* str = "--testing-int-flag 42 --";
+ CHECK_EQ(0, FlagList::SetFlagsFromString(str, strlen(str)));
+ CHECK_EQ(42, FLAG_testing_int_flag);
+ CHECK_EQ(0, FLAG_js_arguments.argc());
+}
+
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