parse Namespace Reference

Parsing the input, delivering an ast::Ast. More...

Namespaces
namespace	tasks
	Tasks of the parse module.

Classes
class	MetavarMap
	A generic map of metavariables. More...
class	TigerParser
	Conduct the scanner and the parser. More...
class	Tweast
	TWEAST stands for ``Text With Embedded Abstract Syntax Trees''. More...

Typedefs
typedef misc::variant < ast::Exp *, ast::DecsList * >	ast_type
	Result of a parse: an Exp (*.tig) or a DecsList (*.tih).

Functions
std::pair< ast::DecsList *, misc::error >	parse (const std::string &prelude, const std::string &fname, misc::file_library &l, bool scan_trace_p, bool parse_trace_p, bool enable_object_extensions_p=false)
	Parse a Tiger file, return the corresponding abstract syntax tree.
ast_type	parse (Tweast &input)
	Parse a Tweast.
ast::Exp *	parse (const std::string &str, bool enable_object_extensions_p=false)
	Parse a std::string. Used for unit tests.
ast::DecsList *	parse_unit (const std::string &str, bool enable_object_extensions_p)
ast::Decs *	parse_decs (Tweast &in)
	Parse a set of declarations.
std::ostream &	operator<< (std::ostream &ostr, const Tweast &in)
	Display the content of the tweast.

Detailed Description

Parsing the input, delivering an ast::Ast.

Typedef Documentation

typedef misc::variant<ast::Exp*, ast::DecsList*> parse::ast_type

Result of a parse: an Exp (*.tig) or a DecsList (*.tih).

Function Documentation

std::ostream & parse::operator<<	(	std::ostream &	ostr,
		const Tweast &	in
	)

Display the content of the tweast.

References parse::Tweast::dump().

std::pair< ast::DecsList *, misc::error > parse::parse	(	const std::string &	prelude,
		const std::string &	fname,
		misc::file_library &	l,
		bool	scan_trace_p,
		bool	parse_trace_p,
		bool	enable_object_extensions_p = false
	)

Parse a Tiger file, return the corresponding abstract syntax tree.

Parameters

prelude	name of the prelude file.
fname	path and name of the tiger file.
file_library	library for managing search path.
scan_trace_p	display informations on scan step.
parse_trace_p	display informations on parse step.
enable_object_extensions_p	enable object constructions

Returns

a pair the first element of which is a pointer to an abstract parse tree upon success, `nullptr' otherwise; and the second element of which is the error status. This function is the only interface available between the scanner/parser and the rest of the program.

References misc::basedir(), parse::TigerParser::enable_object_extensions(), parse::TigerParser::error_get(), misc::make_pair(), parse::TigerParser::parse(), parse::TigerParser::parse_file(), parse::TigerParser::parse_import(), parse::TigerParser::parse_trace(), misc::file_library::pop_current_directory(), parse::TigerParser::prelude(), misc::file_library::push_current_directory(), and parse::TigerParser::scan_trace().

Referenced by object::DesugarVisitor::adapt_type(), object::DesugarVisitor::dispatch_switch(), object::DesugarVisitor::operator()(), parse_decs(), and object::DesugarVisitor::variant_exp().

ast_type parse::parse

(

Tweast &

input

)

Parse a Tweast.

Extensions are enabled. Raises an exception on errors.

References parse::TigerParser::enable_extensions(), parse::TigerParser::enable_object_extensions(), parse::TigerParser::error_get(), and parse::TigerParser::parse().

ast::Exp * parse::parse	(	const std::string &	str,
		bool	enable_object_extensions_p
	)

Parse a std::string. Used for unit tests.

References parse::TigerParser::enable_object_extensions(), parse::TigerParser::error_get(), and parse::TigerParser::parse().

ast::Decs * parse::parse_decs

(

Tweast &

in

)

Parse a set of declarations.

Wrapper around parse::parse to return the single ast::Decs to be found in the input (expected to contain decs_listdecs).

Used by desugar::BoundCheckingVisitor and object::ObjectDesugarVisitor.

References assertion, ast::DecsList::decs_get(), and parse().

ast::DecsList * parse::parse_unit	(	const std::string &	str,
		bool	enable_object_extensions_p = false
	)

Parse a std::string. Used for unit tests. The declaration of the _main function is automatically added.

References parse::TigerParser::enable_object_extensions(), parse::TigerParser::error_get(), and parse::TigerParser::parse().