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Update d8 preemption mode to support multiple files per line. Each line is run

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in its own context.  Files are separated by spaces, and will be run in order,
left to right.

Also add support for comment lines, which start with '#'.
Review URL: http://codereview.chromium.org/20319

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1306 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
patrick@chromium.org 2009-02-19 04:26:04 +00:00
parent 4cc5c314d1
commit 1c0ebb7e1c
1 changed files with 53 additions and 17 deletions
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70
src/d8.cc
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@ -419,6 +419,27 @@ static char* ReadChars(const char *name, int* size_out) {
}
static char* ReadToken(const char* data, char token) {
char* next = ::strchr(data, token);
if (next != NULL) {
*next = '\0';
return (next + 1);
}
return NULL;
}
static char* ReadLine(const char* data) {
return ReadToken(data, '\n');
}
static char* ReadWord(const char* data) {
return ReadToken(data, ' ');
}
// Reads a file into a v8 string.
Handle<String> Shell::ReadFile(const char* name) {
int size = 0;
@ -473,27 +494,42 @@ void ShellThread::Run() {
global_template->Set(String::New("version"),
FunctionTemplate::New(Shell::Version));
Persistent<Context> thread_context = Context::New(NULL, global_template);
thread_context->SetSecurityToken(Undefined());
Context::Scope context_scope(thread_context);
char* ptr = const_cast<char*>(files_.start());
while ((ptr != NULL) && (*ptr != '\0')) {
// For each newline-separated line.
char *filename = ptr;
char* next = ::strchr(ptr, '\n');
if (next != NULL) {
*next = '\0';
ptr = (next + 1);
} else {
ptr = NULL;
}
Handle<String> str = Shell::ReadFile(filename);
Shell::ExecuteString(str, String::New(filename), false, false);
}
char* next_line = ReadLine(ptr);
thread_context.Dispose();
if (*ptr == '#') {
// Skip comment lines.
ptr = next_line;
continue;
}
Persistent<Context> thread_context = Context::New(NULL, global_template);
thread_context->SetSecurityToken(Undefined());
Context::Scope context_scope(thread_context);
while ((ptr != NULL) && (*ptr != '\0')) {
char* filename = ptr;
ptr = ReadWord(ptr);
// Skip empty strings.
if (strlen(filename) == 0) {
break;
}
Handle<String> str = Shell::ReadFile(filename);
if (str.IsEmpty()) {
printf("WARNING: %s not found\n", filename);
break;
}
Shell::ExecuteString(str, String::New(filename), false, false);
}
thread_context.Dispose();
ptr = next_line;
}
}