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phorge-arcanist/support/xhpast/astnode.hpp

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[Wilds] Remove libphutil Summary: Ref T13098. Historically, Phabricator was split into three parts: - Phabricator, the server. - Arcanist, the client. - libphutil, libraries shared between the client and server. One imagined use case for this was that `libphutil` might become a general-purpose library that other projects would use. However, this didn't really happen, and it seems unlikely to at this point: Phabricator has become a relatively more sophisticated application platform; we didn't end up seeing or encouraging much custom development; what custom development there is basically embraces all of Phabricator since there are huge advantages to doing so; and a general "open source is awful" sort of factor here in the sense that open source users often don't have goals well aligned to our goals. Turning "arc" into a client platform and building package management solidify us in this direction of being a standalone platform, not a standalone utility library. Phabricator also depends on `arcanist/`. If it didn't, there would be a small advantage to saying "shared code + client for client, shared code + server for server", but there's no such distinction and it seems unlikely that one will ever exist. Even if it did, I think this has little value. Nowadays, I think this separation has no advantages for us and one significant cost: it makes installing `arcanist` more difficult for end-users. This will need some more finesssing (Phabricator will need some changes for compatibility, and a lot of stuff that still says "libphutil" or "phutil" may eventually want to say "arcanist"), and some stuff (like xhpast) is probably straight-up broken right now and needs some tweaking, but I don't anticipate any major issues here. There was never anything particularly magical about libphutil as a separate standalone library. Test Plan: Ran `arc`, it gets about as far as it did before. Reviewers: amckinley Reviewed By: amckinley Maniphest Tasks: T13098 Differential Revision: https://secure.phabricator.com/D19688
2018-09-18 19:37:45 +02:00
#pragma once
#include <cstdio>
#include <cstdlib>
#include <list>
#include <string>
namespace xhpast {
class Token;
typedef std::list<Token *> token_list_t;
class Token {
public:
unsigned int type;
std::string value;
unsigned int lineno;
unsigned int n;
Token(unsigned int type, char *value, unsigned int n) :
type(type),
value(value),
lineno(0),
n(n) {
}
};
class Node;
typedef std::list<Node *> node_list_t;
class Node {
public:
unsigned int type;
int l_tok;
int r_tok;
node_list_t children;
Node() : type(0), l_tok(-1), r_tok(-1) {};
Node(unsigned int type) : type(type), l_tok(-1), r_tok(-1) {};
Node(unsigned int type, int end_tok) :
type(type) {
this->l_tok = end_tok;
this->r_tok = end_tok;
}
Node(unsigned int type, int l_tok, int r_tok) :
type(type),
l_tok(l_tok),
r_tok(r_tok) {
}
Node *appendChild(Node *node) {
this->children.push_back(node);
return this->expandRange(node);
}
Node *appendChildren(Node *node) {
for (node_list_t::iterator ii = node->children.begin();
ii != node->children.end();
++ii) {
this->appendChild(*ii);
}
return this;
}
Node *firstChild() {
if (this->children.empty()) {
return NULL;
}
return *(this->children.begin());
}
Node *setType(unsigned int t) {
this->type = t;
return this;
}
Node *expandRange(Node *n) {
if (!n) {
fprintf(
stderr,
"Trying to expandRange() a null node to one of type %d\n",
this->type);
exit(1);
};
if (n->l_tok != -1 && (n->l_tok < this->l_tok || (this->l_tok == -1))) {
this->l_tok = n->l_tok;
}
if (n->r_tok != -1 && (n->r_tok > this->r_tok || (this->r_tok == -1))) {
this->r_tok = n->r_tok;
}
return this;
}
};
}