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CPPPreprocessor Class Reference

#include <cppPreprocessor.h>

Inheritance diagram for CPPPreprocessor:

List of all members.


Public Types
typedef map< string, CPPManifest * >	Manifests
typedef set< CPPFile >	ParsedFiles
typedef set< string >	Includes
Public Member Functions
	CPPPreprocessor ()
void	set_verbose (int verbose)
	Sets the verbosity level of the parser.
int	get_verbose () const
	Returns the verbosity level of the parser.
void	copy_filepos (const CPPPreprocessor &other)
CPPFile	get_file () const
int	get_line_number () const
int	get_col_number () const
CPPToken	get_next_token ()
void	warning (const string &message, int line=0, int col=0, CPPFile file=CPPFile())
void	error (const string &message, int line=0, int col=0, CPPFile file=CPPFile())
CPPCommentBlock *	get_comment_before (int line, CPPFile file)
	Returns the CPPCommentBlock immediately preceding the indicated line, if any.
int	get_warning_count () const
int	get_error_count () const
Public Attributes
Manifests	_manifests
DSearchPath	_include_path
DSearchPath	_system_include_path
CPPComments	_comments
ParsedFiles	_parsed_files
Includes	_quote_includes
Includes	_angle_includes
bool	_resolve_identifiers
int	_verbose
Protected Member Functions
bool	init_cpp (const CPPFile &file)
bool	init_const_expr (const string &expr)
bool	init_type (const string &type)
bool	push_file (const CPPFile &file)
bool	push_string (const string &input, bool lock_position)
string	expand_manifests (const string &input_expr)
	Given a string, expand all manifests within the string and return the new string.
CPPExpression *	parse_expr (const string &expr, CPPScope current_scope, CPPScope global_scope)
	Given a string, expand all manifests within the string and evaluate it as an expression.
Private Types
typedef list< InputFile >	Files
enum	State { S_normal, S_eof, S_nested, S_end_nested }
Private Member Functions
CPPToken	internal_get_next_token ()
int	skip_whitespace (int c)
int	skip_comment (int c)
int	skip_c_comment (int c)
int	skip_cpp_comment (int c)
int	process_directive (int c)
int	get_preprocessor_command (int c, string &command)
int	get_preprocessor_args (int c, string &args)
void	handle_define_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_undef_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_ifdef_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_ifndef_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_if_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_include_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	handle_error_directive (const string &args, int first_line, int first_col, const CPPFile &first_file)
void	skip_false_if_block (bool consider_elifs)
	We come here when we fail an #if or an #ifdef test, or when we reach the #else clause to something we didn't fail.
CPPToken	get_quoted_char (int c)
CPPToken	get_quoted_string (int c)
CPPToken	get_identifier (int c)
CPPToken	expand_manifest (const CPPManifest *manifest)
void	extract_manifest_args (const string &name, int num_args, vector_string &args)
void	expand_defined_function (string &expr, size_t q, size_t &p)
void	expand_manifest_inline (string &expr, size_t q, size_t &p, const CPPManifest *manifest)
void	extract_manifest_args_inline (const string &name, int num_args, vector_string &args, const string &expr, size_t &p)
CPPToken	get_number (int c, int c2=0)
string	scan_quoted (int c)
bool	should_ignore_manifest (const CPPManifest *manifest) const
	Returns true if the manifest is one that is being ignored right now (presumably because we are presently expanding it).
bool	should_ignore_preprocessor () const
	Returns true if we should ignore any preprocessor directives (e.g.
int	get ()
void	unget (int c)
CPPTemplateParameterList *	nested_parse_template_instantiation (CPPTemplateScope *scope)
	Recursively invokes yacc to parse the stuff within angle brackets that's the template instantiation part of an identifier.
void	skip_to_end_nested ()
	This is an error-recovery function, called after returning from a nested parse.
void	skip_to_angle_bracket ()
	This is an error-recovery function, called after returning from a nested parse.
Static Private Member Functions
int	check_keyword (const string &name)
Private Attributes
Files	_files
State	_state
int	_paren_nesting
bool	_angle_bracket_found
bool	_start_of_line
int	_unget
int	_last_c
bool	_last_cpp_comment
bool	_save_comments
vector< CPPToken >	_saved_tokens
int	_warning_count
int	_error_count

Member Typedef Documentation

typedef list<InputFile> CPPPreprocessor::Files [private]

Definition at line 196 of file cppPreprocessor.h.

typedef set<string> CPPPreprocessor::Includes

Definition at line 91 of file cppPreprocessor.h.

typedef map<string, CPPManifest *> CPPPreprocessor::Manifests

Definition at line 80 of file cppPreprocessor.h.

typedef set<CPPFile> CPPPreprocessor::ParsedFiles

Definition at line 88 of file cppPreprocessor.h.

Member Enumeration Documentation

enum CPPPreprocessor::State [private]

Enumeration values:

S_normal

S_eof

S_nested

S_end_nested

Definition at line 199 of file cppPreprocessor.h.

Constructor & Destructor Documentation

CPPPreprocessor::CPPPreprocessor ( )

Definition at line 197 of file cppPreprocessor.cxx.

Member Function Documentation

int CPPPreprocessor::check_keyword ( const string & name ) [static, private]

Definition at line 2001 of file cppPreprocessor.cxx.

void CPPPreprocessor::copy_filepos ( const CPPPreprocessor & other )

Definition at line 255 of file cppPreprocessor.cxx.
References _files.

void CPPPreprocessor::error ( const string & message,

int line = 0,

int col = 0,

CPPFile file = CPPFile()

)

Definition at line 510 of file cppPreprocessor.cxx.
References _error_count.
Referenced by CPPIdentifier::get_scope(), and CPPIdentifier::is_tbd().

void CPPPreprocessor::expand_defined_function ( string & expr,

size_t q,

size_t & p

) [private]

Definition at line 1783 of file cppPreprocessor.cxx.
Referenced by push_string().

CPPToken CPPPreprocessor::expand_manifest ( const CPPManifest * manifest ) [private]

Definition at line 1680 of file cppPreprocessor.cxx.
Referenced by skip_false_if_block().

void CPPPreprocessor::expand_manifest_inline ( string & expr,

size_t q,

size_t & p,

const CPPManifest * manifest

) [private]

Definition at line 1812 of file cppPreprocessor.cxx.
Referenced by push_string().

string CPPPreprocessor::expand_manifests ( const string & input_expr ) [protected]

Given a string, expand all manifests within the string and return the new string.

Definition at line 731 of file cppPreprocessor.cxx.
References CPPExpressionParser::_expr, _verbose, current_scope, global_scope, NULL, and CPPExpressionParser::parse_expr().
Referenced by handle_undef_directive().

void CPPPreprocessor::extract_manifest_args ( const string & name,

int num_args,

vector_string & args

) [private]

Definition at line 1713 of file cppPreprocessor.cxx.
References size_t, and warning().

void CPPPreprocessor::extract_manifest_args_inline ( const string & name,

int num_args,

vector_string & args,

const string & expr,

size_t & p

) [private]

Definition at line 1833 of file cppPreprocessor.cxx.

int CPPPreprocessor::get ( ) [private]

Definition at line 2203 of file cppPreprocessor.cxx.
References _files, _saved_tokens, get_next_token(), indent(), S_end_nested, and S_eof.
Referenced by get_quoted_string(), handle_error_directive(), handle_include_directive(), internal_get_next_token(), and process_directive().

int CPPPreprocessor::get_col_number ( ) const

Definition at line 300 of file cppPreprocessor.cxx.
References _saved_tokens.
Referenced by handle_error_directive(), handle_include_directive(), init_const_expr(), and set_verbose().

CPPCommentBlock * CPPPreprocessor::get_comment_before ( int line,

CPPFile file

)

Returns the CPPCommentBlock immediately preceding the indicated line, if any.
If there is no such comment, returns NULL.
Definition at line 571 of file cppPreprocessor.cxx.
References _saved_tokens, _state, push_string(), and S_normal.
Referenced by CPPScope::set_current_vis().

int CPPPreprocessor::get_error_count ( ) const

Definition at line 554 of file cppPreprocessor.cxx.
References _last_c, _saved_tokens, _state, push_file(), and S_normal.
Referenced by CPPParser::is_fully_specified(), CPPExpressionParser::~CPPExpressionParser(), and CPPTypeParser::~CPPTypeParser().

CPPFile CPPPreprocessor::get_file ( ) const

Definition at line 270 of file cppPreprocessor.cxx.
References _files.
Referenced by handle_error_directive(), handle_include_directive(), init_const_expr(), and set_verbose().

CPPToken CPPPreprocessor::get_identifier ( int c ) [private]

Definition at line 1628 of file cppPreprocessor.cxx.

int CPPPreprocessor::get_line_number ( ) const

Definition at line 285 of file cppPreprocessor.cxx.
References _files.
Referenced by handle_error_directive(), handle_include_directive(), init_const_expr(), and set_verbose().

CPPToken CPPPreprocessor::get_next_token ( )

Definition at line 315 of file cppPreprocessor.cxx.
Referenced by get().

CPPToken CPPPreprocessor::get_number ( int c,

int c2 = 0

) [private]

Definition at line 1890 of file cppPreprocessor.cxx.
References cpp_longlong_keyword.

int CPPPreprocessor::get_preprocessor_args ( int c,

string & args

) [private]

Definition at line 1261 of file cppPreprocessor.cxx.
Referenced by handle_include_directive().

int CPPPreprocessor::get_preprocessor_command ( int c,

string & command

) [private]

Definition at line 1233 of file cppPreprocessor.cxx.
References _manifests, and warning().
Referenced by handle_include_directive().

CPPToken CPPPreprocessor::get_quoted_char ( int c ) [private]

Definition at line 1589 of file cppPreprocessor.cxx.

CPPToken CPPPreprocessor::get_quoted_string ( int c ) [private]

Definition at line 1612 of file cppPreprocessor.cxx.
References get().

int CPPPreprocessor::get_verbose ( ) const

Returns the verbosity level of the parser.

Definition at line 243 of file cppPreprocessor.cxx.
References _files.

int CPPPreprocessor::get_warning_count ( ) const

Definition at line 542 of file cppPreprocessor.cxx.
References NULL.

void CPPPreprocessor::handle_define_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1298 of file cppPreprocessor.cxx.

void CPPPreprocessor::handle_error_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1513 of file cppPreprocessor.cxx.
References _manifests, get(), get_col_number(), get_file(), and get_line_number().

void CPPPreprocessor::handle_if_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1384 of file cppPreprocessor.cxx.
References CPPFile::S_system.
Referenced by handle_include_directive().

void CPPPreprocessor::handle_ifdef_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1345 of file cppPreprocessor.cxx.
References _files, and _quote_includes.

void CPPPreprocessor::handle_ifndef_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1364 of file cppPreprocessor.cxx.

void CPPPreprocessor::handle_include_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1420 of file cppPreprocessor.cxx.
References _save_comments, _start_of_line, get(), get_col_number(), get_file(), get_line_number(), get_preprocessor_args(), get_preprocessor_command(), handle_if_directive(), and skip_comment().

void CPPPreprocessor::handle_undef_directive ( const string & args,

int first_line,

int first_col,

const CPPFile & first_file

) [private]

Definition at line 1324 of file cppPreprocessor.cxx.
References expand_manifests().

bool CPPPreprocessor::init_const_expr ( const string & expr ) [protected]

Definition at line 624 of file cppPreprocessor.cxx.
References _files, get_col_number(), get_file(), get_line_number(), and indent().
Referenced by CPPExpressionParser::~CPPExpressionParser().

bool CPPPreprocessor::init_cpp ( const CPPFile & file ) [protected]

Definition at line 608 of file cppPreprocessor.cxx.
References _last_c, _parsed_files, and _start_of_line.
Referenced by CPPParser::is_fully_specified().

bool CPPPreprocessor::init_type ( const string & type ) [protected]

Definition at line 639 of file cppPreprocessor.cxx.
References _files.
Referenced by CPPTypeParser::~CPPTypeParser().

CPPToken CPPPreprocessor::internal_get_next_token ( ) [private]

Definition at line 823 of file cppPreprocessor.cxx.
References get().

CPPTemplateParameterList * CPPPreprocessor::nested_parse_template_instantiation ( CPPTemplateScope * scope ) [private]

Recursively invokes yacc to parse the stuff within angle brackets that's the template instantiation part of an identifier.
This involves setting and restoring some state flags so we can return EOF when we reach the closing bracket.
Definition at line 2271 of file cppPreprocessor.cxx.

CPPExpression * CPPPreprocessor::parse_expr ( const string & expr,

CPPScope * current_scope,

CPPScope * global_scope

) [protected]

Given a string, expand all manifests within the string and evaluate it as an expression.
Returns NULL if the string is not a valid expression.
This is an internal support function for CPPPreprocessor; however, there is a public variant of this function defined for CPPParser.
Definition at line 802 of file cppPreprocessor.cxx.
Referenced by CPPParser::parse_file().

int CPPPreprocessor::process_directive ( int c ) [private]

Definition at line 1177 of file cppPreprocessor.cxx.
References get(), and skip_comment().

bool CPPPreprocessor::push_file ( const CPPFile & file ) [protected]

Definition at line 654 of file cppPreprocessor.cxx.
References _files.
Referenced by get_error_count().

bool CPPPreprocessor::push_string ( const string & input,

bool lock_position

) [protected]

Definition at line 685 of file cppPreprocessor.cxx.
References _manifests, expand_defined_function(), expand_manifest_inline(), and size_t.
Referenced by get_comment_before().

string CPPPreprocessor::scan_quoted ( int c ) [private]

Definition at line 2070 of file cppPreprocessor.cxx.
References _files.

void CPPPreprocessor::set_verbose ( int verbose )

Sets the verbosity level of the parser.
At 0, no warnings will be reported; at 1 or higher, expect to get spammed.
Definition at line 230 of file cppPreprocessor.cxx.
References _files, get_col_number(), get_file(), and get_line_number().

bool CPPPreprocessor::should_ignore_manifest ( const CPPManifest * manifest ) const [private]

Returns true if the manifest is one that is being ignored right now (presumably because we are presently expanding it).

Definition at line 2160 of file cppPreprocessor.cxx.
References CPPType::new_type(), NULL, skip_to_end_nested(), CPPSimpleType::T_unknown, and warning().

bool CPPPreprocessor::should_ignore_preprocessor ( ) const [private]

Returns true if we should ignore any preprocessor directives (e.g.
we're presently expanding a manifest).
Definition at line 2184 of file cppPreprocessor.cxx.
References _angle_bracket_found, and _files.

int CPPPreprocessor::skip_c_comment ( int c ) [private]

Definition at line 1060 of file cppPreprocessor.cxx.
References _comments.

int CPPPreprocessor::skip_comment ( int c ) [private]

Definition at line 1032 of file cppPreprocessor.cxx.
Referenced by handle_include_directive(), and process_directive().

int CPPPreprocessor::skip_cpp_comment ( int c ) [private]

Definition at line 1123 of file cppPreprocessor.cxx.

void CPPPreprocessor::skip_false_if_block ( bool consider_elifs ) [private]

We come here when we fail an #if or an #ifdef test, or when we reach the #else clause to something we didn't fail.
This function skips all text up until the matching #endif.
Definition at line 1533 of file cppPreprocessor.cxx.
References _manifests, and expand_manifest().

void CPPPreprocessor::skip_to_angle_bracket ( ) [private]

This is an error-recovery function, called after returning from a nested parse.
If we haven't yet consumed the closing angle bracket on the template instantiation, keep consuming tokens until we do.
Definition at line 2398 of file cppPreprocessor.cxx.

void CPPPreprocessor::skip_to_end_nested ( ) [private]

This is an error-recovery function, called after returning from a nested parse.
If the state is not S_end_nested, there was an error in parsing the nested tokens, and not all of the nested tokens may have been consumed. This function will consume the rest of the nested tokens.
Definition at line 2362 of file cppPreprocessor.cxx.
Referenced by should_ignore_manifest().

int CPPPreprocessor::skip_whitespace ( int c ) [private]

Definition at line 1004 of file cppPreprocessor.cxx.

void CPPPreprocessor::unget ( int c ) [private]

Definition at line 2248 of file cppPreprocessor.cxx.
References _saved_tokens.

void CPPPreprocessor::warning ( const string & message,

int line = 0,

int col = 0,

CPPFile file = CPPFile()

)

Definition at line 484 of file cppPreprocessor.cxx.
Referenced by extract_manifest_args(), get_preprocessor_command(), CPPDeclaration::get_template_scope(), CPPScope::is_fully_specified(), CPPStructType::is_incomplete(), and should_ignore_manifest().

Member Data Documentation

bool CPPPreprocessor::_angle_bracket_found [private]

Definition at line 204 of file cppPreprocessor.h.
Referenced by should_ignore_preprocessor().

Includes CPPPreprocessor::_angle_includes

Definition at line 93 of file cppPreprocessor.h.

CPPComments CPPPreprocessor::_comments

Definition at line 86 of file cppPreprocessor.h.
Referenced by skip_c_comment().

int CPPPreprocessor::_error_count [private]

Definition at line 216 of file cppPreprocessor.h.
Referenced by error().

Files CPPPreprocessor::_files [private]

Definition at line 197 of file cppPreprocessor.h.
Referenced by copy_filepos(), get(), get_file(), get_line_number(), get_verbose(), handle_ifdef_directive(), init_const_expr(), init_type(), push_file(), scan_quoted(), set_verbose(), and should_ignore_preprocessor().

DSearchPath CPPPreprocessor::_include_path

Definition at line 83 of file cppPreprocessor.h.

int CPPPreprocessor::_last_c [private]

Definition at line 209 of file cppPreprocessor.h.
Referenced by get_error_count(), and init_cpp().

bool CPPPreprocessor::_last_cpp_comment [private]

Definition at line 210 of file cppPreprocessor.h.

Manifests CPPPreprocessor::_manifests

Definition at line 81 of file cppPreprocessor.h.
Referenced by get_preprocessor_command(), handle_error_directive(), push_string(), and skip_false_if_block().

int CPPPreprocessor::_paren_nesting [private]

Definition at line 203 of file cppPreprocessor.h.

ParsedFiles CPPPreprocessor::_parsed_files

Definition at line 89 of file cppPreprocessor.h.
Referenced by init_cpp().

Includes CPPPreprocessor::_quote_includes

Definition at line 92 of file cppPreprocessor.h.
Referenced by handle_ifdef_directive().

bool CPPPreprocessor::_resolve_identifiers

Definition at line 100 of file cppPreprocessor.h.

bool CPPPreprocessor::_save_comments [private]

Definition at line 211 of file cppPreprocessor.h.
Referenced by handle_include_directive().

vector<CPPToken> CPPPreprocessor::_saved_tokens [private]

Definition at line 213 of file cppPreprocessor.h.
Referenced by get(), get_col_number(), get_comment_before(), get_error_count(), and unget().

bool CPPPreprocessor::_start_of_line [private]

Definition at line 206 of file cppPreprocessor.h.
Referenced by handle_include_directive(), and init_cpp().

State CPPPreprocessor::_state [private]

Definition at line 202 of file cppPreprocessor.h.
Referenced by get_comment_before(), and get_error_count().

DSearchPath CPPPreprocessor::_system_include_path

Definition at line 84 of file cppPreprocessor.h.

int CPPPreprocessor::_unget [private]

Definition at line 207 of file cppPreprocessor.h.

int CPPPreprocessor::_verbose

Definition at line 106 of file cppPreprocessor.h.
Referenced by expand_manifests().

int CPPPreprocessor::_warning_count [private]

Definition at line 215 of file cppPreprocessor.h.

The documentation for this class was generated from the following files:

dtool/src/cppparser/cppPreprocessor.h
dtool/src/cppparser/cppPreprocessor.cxx

Generated on Thu May 1 22:13:24 2003 for DTool by

1.3

CPPPreprocessor Class Reference

Public Types

Public Member Functions

Public Attributes

Protected Member Functions

Private Types

Private Member Functions

Static Private Member Functions

Private Attributes

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation