Differential D13973 Diff 33733 support/xhpast/ast.hpp

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support/xhpast/ast.hpp

	#pragma once			#pragma once

	#include <stdint.h>			#include <stdint.h>
	#include <deque>			#include <deque>
	#include <stack>			#include <stack>
	#include <string>			#include <string>

	#include "astnode.hpp"			#include "astnode.hpp"

	class yy_extra_type {			class yy_extra_type {
	public:			public:
	yy_extra_type() {			yy_extra_type() {
	first_lineno = 0;			first_lineno = 0;
	lineno = 1;			lineno = 1;
	terminated = false;			terminated = false;
	used = false;
	last_token = -1;			last_token = -1;
	insert_token = -1;			insert_token = -1;
	heredoc_yyleng = -1;			heredoc_yyleng = -1;
	heredoc_data = (char *) 0;
	short_tags = true;			short_tags = true;
	asp_tags = false;			asp_tags = false;
	idx_expr = false;			idx_expr = false;
	include_debug = false;			include_debug = false;
	expecting_xhp_class_statements = false;
	old_expecting_xhp_class_statements = false;
	used_attributes = false;
	list_size = 0;			list_size = 0;
	colon_hack = false;
	pushStack();			pushStack();
	}			}

	bool short_tags; // `short_open_tag` in php.ini			bool short_tags; // `short_open_tag` in php.ini
	bool asp_tags; // `asp_tags` in php.ini			bool asp_tags; // `asp_tags` in php.ini
	bool idx_expr; // allow code like `foo()['bar']`			bool idx_expr; // allow code like `foo()['bar']`
	size_t first_lineno; // line number before scanning the current token			size_t first_lineno; // line number before scanning the current token
	size_t lineno; // current line number being scanned.			size_t lineno; // current line number being scanned.
	std::string error; // description of error (if terminated true)			std::string error; // description of error (if terminated true)
	bool terminated; // becomes true when the parser terminates with an error			bool terminated; // becomes true when the parser terminates with an error
	bool used; // were any XHP-specific extensions found in this code?
	int last_token; // the last token to be returned by the scanner			int last_token; // the last token to be returned by the scanner
	int insert_token; // insert this token without reading from buffer			int insert_token; // insert this token without reading from buffer
	size_t heredoc_yyleng; // last length of yytext while scanning			size_t heredoc_yyleng; // last length of yytext while scanning
	const char* heredoc_data; // where our heredoc data starts
	std::string heredoc_label; // heredoc sentinel label			std::string heredoc_label; // heredoc sentinel label
	std::stack<int> curly_stack; // tokens appearing before a {			std::stack<int> curly_stack; // tokens appearing before a {
	bool expecting_xhp_class_statements; // when we're one level deep in a class
	bool used_attributes; // did this class use the `attribute` keyword
	unsigned int list_size;			unsigned int list_size;
	bool colon_hack;

	// Include line numbers and file names in XHP object creation.			// Include line numbers and file names in XHP object creation.
	bool include_debug;			bool include_debug;

	// Store old value while inside class method.
	bool old_expecting_xhp_class_statements;

	xhpast::token_list_t token_list;			xhpast::token_list_t token_list;

	/* Utility functions for checking proper tag closing */			/* Utility functions for checking proper tag closing */
	bool haveTag() {			bool haveTag() {
	return !tag_stack.front().empty();			return !tag_stack.front().empty();
	}			}
	const std::string &peekTag() {			const std::string &peekTag() {
	return tag_stack.front().front();			return tag_stack.front().front();
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