diff options
Diffstat (limited to 'libbuild2/test/script/script.hxx')
| -rw-r--r-- | libbuild2/test/script/script.hxx | 378 |
1 files changed, 49 insertions, 329 deletions
diff --git a/libbuild2/test/script/script.hxx b/libbuild2/test/script/script.hxx index a28ef25..6356501 100644 --- a/libbuild2/test/script/script.hxx +++ b/libbuild2/test/script/script.hxx @@ -12,9 +12,9 @@ #include <libbuild2/variable.hxx> -#include <libbuild2/test/target.hxx> +#include <libbuild2/script/script.hxx> -#include <libbuild2/test/script/token.hxx> // replay_tokens +#include <libbuild2/test/target.hxx> namespace build2 { @@ -22,295 +22,14 @@ namespace build2 { namespace script { - class parser; // Required by VC for 'friend class parser' declaration. - - // Pre-parse representation. - // - - enum class line_type - { - var, - cmd, - cmd_if, - cmd_ifn, - cmd_elif, - cmd_elifn, - cmd_else, - cmd_end - }; - - ostream& - operator<< (ostream&, line_type); - - struct line - { - line_type type; - replay_tokens tokens; - - union - { - const variable* var; // Pre-entered for line_type::var. - }; - }; - - // Most of the time we will have just one line (test command). - // - using lines = small_vector<line, 1>; - - // Parse object model. - // - - // redirect - // - enum class redirect_type - { - none, - pass, - null, - trace, - merge, - here_str_literal, - here_str_regex, - here_doc_literal, - here_doc_regex, - here_doc_ref, // Reference to here_doc literal or regex. - file, - }; - - // Pre-parsed (but not instantiated) regex lines. The idea here is that - // we should be able to re-create their (more or less) exact text - // representation for diagnostics but also instantiate without any - // re-parsing. - // - struct regex_line - { - // If regex is true, then value is the regex expression. Otherwise, it - // is a literal. Note that special characters can be present in both - // cases. For example, //+ is a regex, while /+ is a literal, both - // with '+' as a special character. Flags are only valid for regex. - // Literals falls apart into textual (has no special characters) and - // special (has just special characters instead) ones. For example - // foo is a textual literal, while /.+ is a special one. Note that - // literal must not have value and special both non-empty. - // - bool regex; - - string value; - string flags; - string special; - - uint64_t line; - uint64_t column; - - // Create regex with optional special characters. - // - regex_line (uint64_t l, uint64_t c, - string v, string f, string s = string ()) - : regex (true), - value (move (v)), - flags (move (f)), - special (move (s)), - line (l), - column (c) {} - - // Create a literal, either text or special. - // - regex_line (uint64_t l, uint64_t c, string v, bool s) - : regex (false), - value (s ? string () : move (v)), - special (s ? move (v) : string ()), - line (l), - column (c) {} - }; - - struct regex_lines - { - char intro; // Introducer character. - string flags; // Global flags (here-document). - - small_vector<regex_line, 8> lines; - }; - - // Output file redirect mode. - // - enum class redirect_fmode - { - compare, - overwrite, - append - }; - - struct redirect - { - redirect_type type; - - struct file_type - { - using path_type = build2::path; - path_type path; - redirect_fmode mode; // Meaningless for input redirect. - }; - - union - { - int fd; // Merge-to descriptor. - string str; // Note: with trailing newline, if requested. - regex_lines regex; // Note: with trailing blank, if requested. - file_type file; - reference_wrapper<const redirect> ref; // Note: no chains. - }; - - string modifiers; // Redirect modifiers. - string end; // Here-document end marker (no regex intro/flags). - uint64_t end_line; // Here-document end marker location. - uint64_t end_column; - - // Create redirect of a type other than reference. - // - explicit - redirect (redirect_type = redirect_type::none); - - // Create redirect of the reference type. - // - redirect (redirect_type t, const redirect& r) - : type (redirect_type::here_doc_ref), ref (r) - { - // There is no support (and need) for reference chains. - // - assert (t == redirect_type::here_doc_ref && - r.type != redirect_type::here_doc_ref); - } - - // Move constuctible/assignable-only type. - // - redirect (redirect&&); - redirect& operator= (redirect&&); - - ~redirect (); - - const redirect& - effective () const noexcept - { - return type == redirect_type::here_doc_ref ? ref.get () : *this; - } - }; - - // cleanup - // - enum class cleanup_type - { - always, // &foo - cleanup, fail if does not exist. - maybe, // &?foo - cleanup, ignore if does not exist. - never // &!foo - don’t cleanup, ignore if doesn’t exist. - }; - - // File or directory to be automatically cleaned up at the end of the - // scope. If the path ends with a trailing slash, then it is assumed to - // be a directory, otherwise -- a file. A directory that is about to be - // cleaned up must be empty. - // - // The last component in the path may contain a wildcard that have the - // following semantics: - // - // dir/* - remove all immediate files - // dir/*/ - remove all immediate sub-directories (must be empty) - // dir/** - remove all files recursively - // dir/**/ - remove all sub-directories recursively (must be empty) - // dir/*** - remove directory dir with all files and sub-directories - // recursively - // - struct cleanup - { - cleanup_type type; - build2::path path; - }; - using cleanups = vector<cleanup>; - - // command_exit - // - enum class exit_comparison {eq, ne}; - - struct command_exit - { - // C/C++ don't apply constraints on program exit code other than it - // being of type int. - // - // POSIX specifies that only the least significant 8 bits shall be - // available from wait() and waitpid(); the full value shall be - // available from waitid() (read more at _Exit, _exit Open Group - // spec). - // - // While the Linux man page for waitid() doesn't mention any - // deviations from the standard, the FreeBSD implementation (as of - // version 11.0) only returns 8 bits like the other wait*() calls. - // - // Windows supports 32-bit exit codes. - // - // Note that in shells some exit values can have special meaning so - // using them can be a source of confusion. For bash values in the - // [126, 255] range are such a special ones (see Appendix E, "Exit - // Codes With Special Meanings" in the Advanced Bash-Scripting Guide). - // - exit_comparison comparison; - uint8_t code; - }; - - // command - // - struct command - { - path program; - strings arguments; - - redirect in; - redirect out; - redirect err; - - script::cleanups cleanups; - - command_exit exit {exit_comparison::eq, 0}; - }; - - enum class command_to_stream: uint16_t - { - header = 0x01, - here_doc = 0x02, // Note: printed on a new line. - all = header | here_doc - }; - - void - to_stream (ostream&, const command&, command_to_stream); - - ostream& - operator<< (ostream&, const command&); - - // command_pipe - // - using command_pipe = vector<command>; - - void - to_stream (ostream&, const command_pipe&, command_to_stream); - - ostream& - operator<< (ostream&, const command_pipe&); - - // command_expr - // - enum class expr_operator {log_or, log_and}; - - struct expr_term - { - expr_operator op; // OR-ed to an implied false for the first term. - command_pipe pipe; - }; - - using command_expr = vector<expr_term>; + using build2::script::line; + using build2::script::lines; + using build2::script::redirect; + using build2::script::redirect_type; + using build2::script::line_type; + using build2::script::command_expr; - void - to_stream (ostream&, const command_expr&, command_to_stream); - - ostream& - operator<< (ostream&, const command_expr&); + class parser; // Required by VC for 'friend class parser' declaration. // command_type // @@ -335,31 +54,54 @@ namespace build2 // class script; + class scope_base // Make sure certain things are initialized early. + { + public: + script& root; // Self for the root (script) scope. + + // Note that if we pass the variable name as a string, then it will + // be looked up in the wrong pool. + // + variable_map vars; + + protected: + scope_base (script&); + + const dir_path* + wd_path () const; + + const target_triplet& + test_tt () const; + }; + enum class scope_state {unknown, passed, failed}; - class scope + class scope: public scope_base, public build2::script::environment { public: scope* const parent; // NULL for the root (script) scope. - script& root; // Self for the root (script) scope. // The chain of if-else scope alternatives. See also if_cond_ below. // unique_ptr<scope> if_chain; - // Note that if we pass the variable name as a string, then it will - // be looked up in the wrong pool. - // - variable_map vars; - const path& id_path; // Id path ($@, relative in POSIX form). - const dir_path& wd_path; // Working dir ($~, absolute and normalized). optional<description> desc; scope_state state = scope_state::unknown; - test::script::cleanups cleanups; - paths special_cleanups; + + void + set_variable (string&& name, + names&&, + const string& attrs, + const location&) override; + + // Noop since the temporary directory is a working directory and so + // is created before the scope commands execution. + // + virtual void + create_temp_dir () override {assert (false);}; // Variables. // @@ -382,17 +124,18 @@ namespace build2 lookup_in_buildfile (const string&, bool target_only = true) const; // Return a value suitable for assignment. If the variable does not - // exist in this scope's map, then a new one with the NULL value is - // added and returned. Otherwise the existing value is returned. + // exist in this scope's variable map, then a new one with the NULL + // value is added and returned. Otherwise the existing value is + // returned. // value& assign (const variable& var) {return vars.assign (var);} // Return a value suitable for append/prepend. If the variable does - // not exist in this scope's map, then outer scopes are searched for - // the same variable. If found then a new variable with the found - // value is added to this scope and returned. Otherwise this function - // proceeds as assign() above. + // not exist in this scope's variable map, then outer scopes are + // searched for the same variable. If found then a new variable with + // the found value is added to this scope and returned. Otherwise this + // function proceeds as assign() above. // value& append (const variable&); @@ -402,27 +145,6 @@ namespace build2 void reset_special (); - // Cleanup. - // - public: - // Register a cleanup. If the cleanup is explicit, then override the - // cleanup type if this path is already registered. Ignore implicit - // registration of a path outside script working directory. - // - void - clean (cleanup, bool implicit); - - // Register cleanup of a special file. Such files are created to - // maintain testscript machinery and must be removed first, not to - // interfere with the user-defined wildcard cleanups. - // - void - clean_special (path p); - - public: - virtual - ~scope () = default; - protected: scope (const string& id, scope* parent, script& root); @@ -567,6 +289,4 @@ namespace build2 } } -#include <libbuild2/test/script/script.ixx> - #endif // LIBBUILD2_TEST_SCRIPT_SCRIPT_HXX |