summaryrefslogtreecommitdiff
path: root/tools/build/v2/engine/compile.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/build/v2/engine/compile.c')
-rw-r--r--tools/build/v2/engine/compile.c1163
1 files changed, 43 insertions, 1120 deletions
diff --git a/tools/build/v2/engine/compile.c b/tools/build/v2/engine/compile.c
index 2c049aae59..cb08e24c95 100644
--- a/tools/build/v2/engine/compile.c
+++ b/tools/build/v2/engine/compile.c
@@ -16,9 +16,8 @@
# include "parse.h"
# include "compile.h"
# include "variable.h"
-# include "expand.h"
# include "rules.h"
-# include "newstr.h"
+# include "object.h"
# include "make.h"
# include "search.h"
# include "hdrmacro.h"
@@ -27,6 +26,7 @@
# include "strings.h"
# include "builtins.h"
# include "class.h"
+# include "constants.h"
# include <assert.h>
# include <string.h>
@@ -86,15 +86,17 @@
* 01/10/00 (seiwald) - built-ins split out to builtin.c.
*/
-static void debug_compile( int which, char *s, FRAME* frame );
-int glob( char *s, char *c );
+static void debug_compile( int which, const char * s, FRAME * frame );
+int glob( const char * s, const char * c );
/* Internal functions from builtins.c */
-void backtrace( FRAME *frame );
-void backtrace_line( FRAME *frame );
-void print_source_line( PARSE* p );
+void backtrace( FRAME * frame );
+void backtrace_line( FRAME * frame );
+void print_source_line( FRAME * frame );
struct frame * frame_before_python_call;
+static OBJECT * module_scope;
+
void frame_init( FRAME* frame )
{
frame->prev = 0;
@@ -102,7 +104,8 @@ void frame_init( FRAME* frame )
lol_init(frame->args);
frame->module = root_module();
frame->rulename = "module scope";
- frame->procedure = 0;
+ frame->file = 0;
+ frame->line = -1;
}
@@ -113,907 +116,39 @@ void frame_free( FRAME* frame )
/*
- * compile_append() - append list results of two statements
- *
- * parse->left more compile_append() by left-recursion
- * parse->right single rule
- */
-
-LIST * compile_append( PARSE * parse, FRAME * frame )
-{
- /* Append right to left. */
- return list_append(
- parse_evaluate( parse->left, frame ),
- parse_evaluate( parse->right, frame ) );
-}
-
-
-/*
- * compile_eval() - evaluate if to determine which leg to compile
- *
- * Returns:
- * list if expression true - compile 'then' clause
- * L0 if expression false - compile 'else' clause
- */
-
-static int lcmp( LIST * t, LIST * s )
-{
- int status = 0;
-
- while ( !status && ( t || s ) )
- {
- char *st = t ? t->string : "";
- char *ss = s ? s->string : "";
-
- status = strcmp( st, ss );
-
- t = t ? list_next( t ) : t;
- s = s ? list_next( s ) : s;
- }
-
- return status;
-}
-
-LIST * compile_eval( PARSE * parse, FRAME * frame )
-{
- LIST * ll;
- LIST * lr;
- LIST * s;
- LIST * t;
- int status = 0;
-
- /* Short circuit lr eval for &&, ||, and 'in'. */
-
- ll = parse_evaluate( parse->left, frame );
- lr = 0;
-
- switch ( parse->num )
- {
- case EXPR_AND:
- case EXPR_IN : if ( ll ) goto eval; break;
- case EXPR_OR : if ( !ll ) goto eval; break;
- default: eval: lr = parse_evaluate( parse->right, frame );
- }
-
- /* Now eval. */
- switch ( parse->num )
- {
- case EXPR_NOT: if ( !ll ) status = 1; break;
- case EXPR_AND: if ( ll && lr ) status = 1; break;
- case EXPR_OR : if ( ll || lr ) status = 1; break;
-
- case EXPR_IN:
- /* "a in b": make sure each of ll is equal to something in lr. */
- for ( t = ll; t; t = list_next( t ) )
- {
- for ( s = lr; s; s = list_next( s ) )
- if ( !strcmp( t->string, s->string ) )
- break;
- if ( !s ) break;
- }
- /* No more ll? Success. */
- if ( !t ) status = 1;
- break;
-
- case EXPR_EXISTS: if ( lcmp( ll, L0 ) != 0 ) status = 1; break;
- case EXPR_EQUALS: if ( lcmp( ll, lr ) == 0 ) status = 1; break;
- case EXPR_NOTEQ : if ( lcmp( ll, lr ) != 0 ) status = 1; break;
- case EXPR_LESS : if ( lcmp( ll, lr ) < 0 ) status = 1; break;
- case EXPR_LESSEQ: if ( lcmp( ll, lr ) <= 0 ) status = 1; break;
- case EXPR_MORE : if ( lcmp( ll, lr ) > 0 ) status = 1; break;
- case EXPR_MOREEQ: if ( lcmp( ll, lr ) >= 0 ) status = 1; break;
- }
-
- if ( DEBUG_IF )
- {
- debug_compile( 0, "if", frame );
- list_print( ll );
- printf( "(%d) ", status );
- list_print( lr );
- printf( "\n" );
- }
-
- /* Find something to return. */
- /* In odd circumstances (like "" = "") */
- /* we'll have to return a new string. */
-
- if ( !status ) t = 0;
- else if ( ll ) t = ll, ll = 0;
- else if ( lr ) t = lr, lr = 0;
- else t = list_new( L0, newstr( "1" ) );
-
- if ( ll ) list_free( ll );
- if ( lr ) list_free( lr );
- return t;
-}
-
-
-/*
- * compile_foreach() - compile the "for x in y" statement
- *
- * Compile_foreach() resets the given variable name to each specified
- * value, executing the commands enclosed in braces for each iteration.
- *
- * parse->string index variable
- * parse->left variable values
- * parse->right rule to compile
- */
-
-LIST * compile_foreach( PARSE * parse, FRAME * frame )
-{
- LIST * nv = parse_evaluate( parse->left, frame );
- LIST * l;
- SETTINGS * s = 0;
-
- if ( parse->num )
- {
- s = addsettings( s, VAR_SET, parse->string, L0 );
- pushsettings( s );
- }
-
- /* Call var_set to reset $(parse->string) for each val. */
-
- for ( l = nv; l; l = list_next( l ) )
- {
- LIST * val = list_new( L0, copystr( l->string ) );
- var_set( parse->string, val, VAR_SET );
- list_free( parse_evaluate( parse->right, frame ) );
- }
-
- if ( parse->num )
- {
- popsettings( s );
- freesettings( s );
- }
-
- list_free( nv );
-
- return L0;
-}
-
-/*
- * compile_if() - compile 'if' rule
- *
- * parse->left condition tree
- * parse->right then tree
- * parse->third else tree
- */
-
-LIST * compile_if( PARSE * p, FRAME * frame )
-{
- LIST * l = parse_evaluate( p->left, frame );
- if ( l )
- {
- list_free( l );
- return parse_evaluate( p->right, frame );
- }
- return parse_evaluate( p->third, frame );
-}
-
-
-LIST * compile_while( PARSE * p, FRAME * frame )
-{
- LIST * r = 0;
- LIST * l;
- while ( ( l = parse_evaluate( p->left, frame ) ) )
- {
- list_free( l );
- if ( r ) list_free( r );
- r = parse_evaluate( p->right, frame );
- }
- return r;
-}
-
-
-/*
- * compile_include() - support for 'include' - call include() on file
- *
- * parse->left list of files to include (can only do 1)
- */
-
-LIST * compile_include( PARSE * parse, FRAME * frame )
-{
- LIST * nt = parse_evaluate( parse->left, frame );
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "include", frame);
- list_print( nt );
- printf( "\n" );
- }
-
- if ( nt )
- {
- TARGET * t = bindtarget( nt->string );
-
- /* DWA 2001/10/22 - Perforce Jam cleared the arguments here, which
- * prevents an included file from being treated as part of the body of a
- * rule. I did not see any reason to do that, so I lifted the
- * restriction.
- */
-
- /* Bind the include file under the influence of */
- /* "on-target" variables. Though they are targets, */
- /* include files are not built with make(). */
-
- pushsettings( t->settings );
- /* We don't expect that file to be included is generated by some
- action. Therefore, pass 0 as third argument.
- If the name resolves to directory, let it error out. */
- t->boundname = search( t->name, &t->time, 0, 0 );
- popsettings( t->settings );
-
- parse_file( t->boundname, frame );
- }
-
- list_free( nt );
-
- return L0;
-}
-
-static LIST* evaluate_in_module ( char* module_name, PARSE * p, FRAME* frame)
-{
- LIST* result;
-
- module_t* outer_module = frame->module;
- frame->module = module_name ? bindmodule( module_name ) : root_module();
-
- if ( outer_module != frame->module )
- {
- exit_module( outer_module );
- enter_module( frame->module );
- }
-
- result = parse_evaluate( p, frame );
-
- if ( outer_module != frame->module )
- {
- exit_module( frame->module );
- enter_module( outer_module );
- frame->module = outer_module;
- }
-
- return result;
-}
-
-
-LIST * compile_module( PARSE * p, FRAME * frame )
-{
- /* Here we are entering a module declaration block. */
- LIST * module_name = parse_evaluate( p->left, frame );
- LIST * result = evaluate_in_module( module_name ? module_name->string : 0,
- p->right, frame );
- list_free( module_name );
- return result;
-}
-
-
-LIST * compile_class( PARSE * p, FRAME * frame )
-{
- /** Todo: check for empty class name.
- Check for class redeclaration. */
-
- char * class_module = 0;
-
- LIST * name = parse_evaluate( p->left->right, frame );
- LIST * bases = 0;
-
- if ( p->left->left )
- bases = parse_evaluate( p->left->left->right, frame );
-
- class_module = make_class_module( name, bases, frame );
- evaluate_in_module( class_module, p->right, frame );
-
- return L0;
-}
-
-
-/*
- * compile_list() - expand and return a list.
- *
- * parse->string - character string to expand.
- */
-
-LIST * compile_list( PARSE * parse, FRAME * frame )
-{
- /* s is a copyable string */
- char * s = parse->string;
- return var_expand( L0, s, s + strlen( s ), frame->args, 1 );
-}
-
-
-/*
- * compile_local() - declare (and set) local variables.
- *
- * parse->left list of variables
- * parse->right list of values
- * parse->third rules to execute
- */
-
-LIST * compile_local( PARSE * parse, FRAME * frame )
-{
- LIST * l;
- SETTINGS * s = 0;
- LIST * nt = parse_evaluate( parse->left, frame );
- LIST * ns = parse_evaluate( parse->right, frame );
- LIST * result;
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "local", frame );
- list_print( nt );
- printf( " = " );
- list_print( ns );
- printf( "\n" );
- }
-
- /* Initial value is ns. */
- for ( l = nt; l; l = list_next( l ) )
- s = addsettings( s, VAR_SET, l->string, list_copy( (LIST *)0, ns ) );
-
- list_free( ns );
- list_free( nt );
-
- /* Note that callees of the current context get this "local" variable,
- * making it not so much local as layered.
- */
-
- pushsettings( s );
- result = parse_evaluate( parse->third, frame );
- popsettings( s );
-
- freesettings( s );
-
- return result;
-}
-
-
-/*
- * compile_null() - do nothing -- a stub for parsing.
- */
-
-LIST * compile_null( PARSE * parse, FRAME * frame )
-{
- return L0;
-}
-
-
-/*
- * compile_on() - run rule under influence of on-target variables
- *
- * parse->left list of files to include (can only do 1).
- * parse->right rule to run.
- *
- * EXPERIMENTAL!
- */
-
-LIST * compile_on( PARSE * parse, FRAME * frame )
-{
- LIST * nt = parse_evaluate( parse->left, frame );
- LIST * result = 0;
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "on", frame );
- list_print( nt );
- printf( "\n" );
- }
-
- if ( nt )
- {
- TARGET * t = bindtarget( nt->string );
- pushsettings( t->settings );
- result = parse_evaluate( parse->right, frame );
- popsettings( t->settings );
- }
-
- list_free( nt );
-
- return result;
-}
-
-
-/*
- * compile_rule() - compile a single user defined rule.
- *
- * parse->string name of user defined rule.
- * parse->left parameters (list of lists) to rule, recursing left.
- *
- * Wrapped around evaluate_rule() so that headers() can share it.
- */
-
-LIST * compile_rule( PARSE * parse, FRAME * frame )
-{
- FRAME inner[ 1 ];
- LIST * result;
- PARSE * p;
-
- /* Build up the list of arg lists. */
- frame_init( inner );
- inner->prev = frame;
- inner->prev_user = frame->module->user_module ? frame : frame->prev_user;
- inner->module = frame->module; /* This gets fixed up in evaluate_rule(), below. */
- inner->procedure = parse;
- /* Special-case LOL of length 1 where the first list is totally empty.
- This is created when calling functions with no parameters, due to
- the way jam grammar is written. This is OK when one jam function
- calls another, but really not good when Jam function calls Python. */
- if ( parse->left->left == NULL && parse->left->right->func == compile_null)
- ;
- else
- for ( p = parse->left; p; p = p->left )
- lol_add( inner->args, parse_evaluate( p->right, frame ) );
-
- /* And invoke the rule. */
- result = evaluate_rule( parse->string, inner );
- frame_free( inner );
- return result;
-}
-
-
-static void argument_error( char * message, RULE * rule, FRAME * frame, LIST* arg )
-{
- LOL * actual = frame->args;
- assert( frame->procedure != 0 );
- backtrace_line( frame->prev );
- printf( "*** argument error\n* rule %s ( ", frame->rulename );
- lol_print( rule->arguments->data );
- printf( " )\n* called with: ( " );
- lol_print( actual );
- printf( " )\n* %s %s\n", message, arg ? arg->string : "" );
- print_source_line( rule->procedure );
- printf( "see definition of rule '%s' being called\n", rule->name );
- backtrace( frame->prev );
- exit( 1 );
-}
-
-
-/* Define delimiters for type check elements in argument lists (and return type
- * specifications, eventually).
- */
-# define TYPE_OPEN_DELIM '['
-# define TYPE_CLOSE_DELIM ']'
-
-/*
- * is_type_name() - true iff the given string represents a type check
- * specification.
- */
-
-static int is_type_name( char * s )
-{
- return ( s[ 0 ] == TYPE_OPEN_DELIM ) &&
- ( s[ strlen( s ) - 1 ] == TYPE_CLOSE_DELIM );
-}
-
-
-/*
- * arg_modifier - if the next element of formal is a single character, return
- * that; return 0 otherwise. Used to extract "*+?" modifiers * from argument
- * lists.
- */
-
-static char arg_modifier( LIST * formal )
-{
- if ( formal->next )
- {
- char * next = formal->next->string;
- if ( next && ( next[ 0 ] != 0 ) && ( next[ 1 ] == 0 ) )
- return next[ 0 ];
- }
- return 0;
-}
-
-
-/*
- * type_check() - checks that each element of values satisfies the requirements
- * of type_name.
- *
- * caller - the frame of the rule calling the rule whose arguments are
- * being checked
- *
- * called - the rule being called
- *
- * arg_name - a list element containing the name of the argument being
- * checked
- */
-
-static void type_check
-(
- char * type_name,
- LIST * values,
- FRAME * caller,
- RULE * called,
- LIST * arg_name
-)
-{
- static module_t * typecheck = 0;
-
- /* If nothing to check, bail now. */
- if ( !values || !type_name )
- return;
-
- if ( !typecheck )
- typecheck = bindmodule( ".typecheck" );
-
- /* If the checking rule can not be found, also bail. */
- {
- RULE checker_, *checker = &checker_;
-
- checker->name = type_name;
- if ( !typecheck->rules || !hashcheck( typecheck->rules, (HASHDATA * *)&checker ) )
- return;
- }
-
- exit_module( caller->module );
-
- while ( values != 0 )
- {
- LIST *error;
- FRAME frame[1];
- frame_init( frame );
- frame->module = typecheck;
- frame->prev = caller;
- frame->prev_user = caller->module->user_module ? caller : caller->prev_user;
-
- enter_module( typecheck );
- /* Prepare the argument list */
- lol_add( frame->args, list_new( L0, values->string ) );
- error = evaluate_rule( type_name, frame );
-
- exit_module( typecheck );
-
- if ( error )
- argument_error( error->string, called, caller, arg_name );
-
- frame_free( frame );
- values = values->next;
- }
-
- enter_module( caller->module );
-}
-
-/*
- * collect_arguments() - local argument checking and collection
- */
-static SETTINGS *
-collect_arguments( RULE* rule, FRAME* frame )
-{
- SETTINGS *locals = 0;
-
- LOL * all_actual = frame->args;
- LOL * all_formal = rule->arguments ? rule->arguments->data : 0;
- if ( all_formal ) /* Nothing to set; nothing to check */
- {
- int max = all_formal->count > all_actual->count
- ? all_formal->count
- : all_actual->count;
-
- int n;
- for ( n = 0; n < max ; ++n )
- {
- LIST *actual = lol_get( all_actual, n );
- char *type_name = 0;
-
- LIST *formal;
- for ( formal = lol_get( all_formal, n ); formal; formal = formal->next )
- {
- char* name = formal->string;
-
- if ( is_type_name(name) )
- {
- if ( type_name )
- argument_error( "missing argument name before type name:", rule, frame, formal );
-
- if ( !formal->next )
- argument_error( "missing argument name after type name:", rule, frame, formal );
-
- type_name = formal->string;
- }
- else
- {
- LIST* value = 0;
- char modifier;
- LIST* arg_name = formal; /* hold the argument name for type checking */
- int multiple = 0;
-
- /* Stop now if a variable number of arguments are specified */
- if ( name[0] == '*' && name[1] == 0 )
- return locals;
-
- modifier = arg_modifier( formal );
-
- if ( !actual && modifier != '?' && modifier != '*' )
- argument_error( "missing argument", rule, frame, formal );
-
- switch ( modifier )
- {
- case '+':
- case '*':
- value = list_copy( 0, actual );
- multiple = 1;
- actual = 0;
- /* skip an extra element for the modifier */
- formal = formal->next;
- break;
- case '?':
- /* skip an extra element for the modifier */
- formal = formal->next;
- /* fall through */
- default:
- if ( actual ) /* in case actual is missing */
- {
- value = list_new( 0, actual->string );
- actual = actual->next;
- }
- }
-
- locals = addsettings(locals, VAR_SET, name, value);
- locals->multiple = multiple;
- type_check( type_name, value, frame, rule, arg_name );
- type_name = 0;
- }
- }
-
- if ( actual )
- {
- argument_error( "extra argument", rule, frame, actual );
- }
- }
- }
- return locals;
-}
-
-RULE *
-enter_rule( char *rulename, module_t *target_module );
-
-#ifdef HAVE_PYTHON
-
-static int python_instance_number = 0;
-
-
-/* Given a Python object, return a string to use in Jam
- code instead of said object.
- If the object is string, use the string value
- If the object implemenets __jam_repr__ method, use that.
- Otherwise return 0.
-
- The result value is newstr-ed. */
-char *python_to_string(PyObject* value)
-{
- if (PyString_Check(value))
- {
- return newstr(PyString_AsString(value));
- }
- else
- {
- /* See if this is an instance that defines special __jam_repr__
- method. */
- if (PyInstance_Check(value)
- && PyObject_HasAttrString(value, "__jam_repr__"))
- {
- PyObject* repr = PyObject_GetAttrString(value, "__jam_repr__");
- if (repr)
- {
- PyObject* arguments2 = PyTuple_New(0);
- PyObject* value2 = PyObject_Call(repr, arguments2, 0);
- Py_DECREF(repr);
- Py_DECREF(arguments2);
- if (PyString_Check(value2))
- {
- return newstr(PyString_AsString(value2));
- }
- Py_DECREF(value2);
- }
- }
- return 0;
- }
-}
-
-static LIST*
-call_python_function(RULE* r, FRAME* frame)
-{
- LIST * result = 0;
- PyObject * arguments = 0;
- PyObject * kw = NULL;
- int i ;
- PyObject * py_result;
-
- if (r->arguments)
- {
- SETTINGS * args;
-
- arguments = PyTuple_New(0);
- kw = PyDict_New();
-
- for (args = collect_arguments(r, frame); args; args = args->next)
- {
- PyObject *key = PyString_FromString(args->symbol);
- PyObject *value = 0;
- if (args->multiple)
- value = list_to_python(args->value);
- else {
- if (args->value)
- value = PyString_FromString(args->value->string);
- }
-
- if (value)
- PyDict_SetItem(kw, key, value);
- Py_DECREF(key);
- Py_XDECREF(value);
- }
- }
- else
- {
- arguments = PyTuple_New( frame->args->count );
- for ( i = 0; i < frame->args->count; ++i )
- {
- PyObject * arg = PyList_New(0);
- LIST* l = lol_get( frame->args, i);
-
- for ( ; l; l = l->next )
- {
- PyObject * v = PyString_FromString(l->string);
- PyList_Append( arg, v );
- Py_DECREF(v);
- }
- /* Steals reference to 'arg' */
- PyTuple_SetItem( arguments, i, arg );
- }
- }
-
- frame_before_python_call = frame;
- py_result = PyObject_Call( r->python_function, arguments, kw );
- Py_DECREF(arguments);
- Py_XDECREF(kw);
- if ( py_result != NULL )
- {
- if ( PyList_Check( py_result ) )
- {
- int size = PyList_Size( py_result );
- int i;
- for ( i = 0; i < size; ++i )
- {
- PyObject * item = PyList_GetItem( py_result, i );
- char *s = python_to_string (item);
- if (!s) {
- fprintf( stderr, "Non-string object returned by Python call.\n" );
- } else {
- result = list_new (result, s);
- }
- }
- }
- else if ( py_result == Py_None )
- {
- result = L0;
- }
- else
- {
- char *s = python_to_string(py_result);
- if (s)
- result = list_new(0, s);
- else
- /* We have tried all we could. Return empty list. There are
- cases, e.g. feature.feature function that should return
- value for the benefit of Python code and which also can be
- called by Jam code, where no sensible value can be
- returned. We cannot even emit a warning, since there will
- be a pile of them. */
- result = L0;
- }
-
- Py_DECREF( py_result );
- }
- else
- {
- PyErr_Print();
- fprintf(stderr,"Call failed\n");
- }
-
- return result;
-}
-
-
-module_t * python_module()
-{
- static module_t * python = 0;
- if ( !python )
- python = bindmodule("__python__");
- return python;
-}
-
-#endif
-
-
-/*
* evaluate_rule() - execute a rule invocation.
*/
LIST *
evaluate_rule(
- char * rulename,
- FRAME * frame )
+ OBJECT * rulename,
+ FRAME * frame )
{
LIST * result = L0;
RULE * rule;
profile_frame prof[1];
module_t * prev_module = frame->module;
- LIST * l;
- {
- LOL arg_context_, * arg_context = &arg_context_;
- if ( !frame->prev )
- lol_init(arg_context);
- else
- arg_context = frame->prev->args;
- l = var_expand( L0, rulename, rulename+strlen(rulename), arg_context, 0 );
- }
-
- if ( !l )
- {
- backtrace_line( frame->prev );
- printf( "warning: rulename %s expands to empty string\n", rulename );
- backtrace( frame->prev );
- return result;
- }
-
- rulename = l->string;
- rule = bindrule( l->string, frame->module );
-
-#ifdef HAVE_PYTHON
- if ( rule->python_function )
- {
- /* The below messing with modules is due to the way modules are
- * implemented in Jam. Suppose we are in module M1 now. The global
- * variable map actually holds 'M1' variables, and M1->variables hold
- * global variables.
- *
- * If we call Python right away, Python calls back Jam and then Jam
- * does 'module M1 { }' then Jam will try to swap the current global
- * variables with M1->variables. The result will be that global
- * variables map will hold global variables, and any variable settings
- * we do will go to the global module, not M1.
- *
- * By restoring basic state, where the global variable map holds global
- * variable, we make sure any future 'module M1' entry will work OK.
- */
-
- LIST * result;
- module_t * m = python_module();
-
- frame->module = m;
-
- exit_module( prev_module );
- enter_module( m );
-
- result = call_python_function( rule, frame );
-
- exit_module( m );
- enter_module ( prev_module );
-
- return result;
- }
-#endif
-
- /* Drop the rule name. */
- l = list_pop_front( l );
-
- /* Tack the rest of the expansion onto the front of the first argument. */
- frame->args->list[0] = list_append( l, lol_get( frame->args, 0 ) );
+ rule = bindrule( rulename, frame->module );
if ( DEBUG_COMPILE )
{
/* Try hard to indicate in which module the rule is going to execute. */
if ( rule->module != frame->module
- && rule->procedure != 0 && strcmp( rulename, rule->procedure->rulename ) )
+ && rule->procedure != 0 && !object_equal( rulename, function_rulename( rule->procedure ) ) )
{
char buf[256] = "";
- strncat( buf, rule->module->name, sizeof( buf ) - 1 );
- strncat( buf, rule->name, sizeof( buf ) - 1 );
+ if ( rule->module->name )
+ {
+ strncat( buf, object_str( rule->module->name ), sizeof( buf ) - 1 );
+ strncat( buf, ".", sizeof( buf ) - 1 );
+ }
+ strncat( buf, object_str( rule->name ), sizeof( buf ) - 1 );
debug_compile( 1, buf, frame );
}
else
{
- debug_compile( 1, rulename, frame );
+ debug_compile( 1, object_str( rulename ), frame );
}
lol_print( frame->args );
@@ -1024,26 +159,29 @@ evaluate_rule(
{
/* Propagate current module to nested rule invocations. */
frame->module = rule->module;
-
- /* Swap variables. */
- exit_module( prev_module );
- enter_module( rule->module );
}
/* Record current rule name in frame. */
if ( rule->procedure )
{
- frame->rulename = rulename;
+ frame->rulename = object_str( rulename );
/* And enter record profile info. */
if ( DEBUG_PROFILE )
- profile_enter( rule->procedure->rulename, prof );
+ profile_enter( function_rulename( rule->procedure ), prof );
}
/* Check traditional targets $(<) and sources $(>). */
if ( !rule->actions && !rule->procedure )
{
backtrace_line( frame->prev );
- printf( "rule %s unknown in module %s\n", rule->name, frame->module->name );
+ if ( frame->module->name )
+ {
+ printf( "rule %s unknown in module %s\n", object_str( rule->name ), object_str( frame->module->name ) );
+ }
+ else
+ {
+ printf( "rule %s unknown in module \n", object_str( rule->name ) );
+ }
backtrace( frame->prev );
exit( 1 );
}
@@ -1063,6 +201,7 @@ evaluate_rule(
action->rule = rule;
action->targets = targetlist( (TARGETS *)0, lol_get( frame->args, 0 ) );
action->sources = targetlist( (TARGETS *)0, lol_get( frame->args, 1 ) );
+ action->refs = 1;
/* If we have a group of targets all being built using the same action
* then we must not allow any of them to be used as sources unless they
@@ -1109,30 +248,21 @@ evaluate_rule(
/* Append this action to the actions of each target. */
for ( t = action->targets; t; t = t->next )
t->target->actions = actionlist( t->target->actions, action );
+
+ action_free( action );
}
/* Now recursively compile any parse tree associated with this rule.
- * parse_refer()/parse_free() call pair added to ensure rule not freed
+ * function_refer()/function_free() call pair added to ensure rule not freed
* during use.
*/
if ( rule->procedure )
{
- SETTINGS * local_args = collect_arguments( rule, frame );
- PARSE * parse = rule->procedure;
- parse_refer( parse );
-
- pushsettings( local_args );
- result = parse_evaluate( parse, frame );
- popsettings( local_args );
- freesettings( local_args );
+ FUNCTION * function = rule->procedure;
- parse_free( parse );
- }
-
- if ( frame->module != prev_module )
- {
- exit_module( frame->module );
- enter_module( prev_module );
+ function_refer( function );
+ result = function_run( function, frame, stack_global() );
+ function_free( function );
}
if ( DEBUG_PROFILE && rule->procedure )
@@ -1154,7 +284,7 @@ evaluate_rule(
* which might be implemented in Jam.
*/
-LIST * call_rule( char * rulename, FRAME * caller_frame, ... )
+LIST * call_rule( OBJECT * rulename, FRAME * caller_frame, ... )
{
va_list va;
LIST * result;
@@ -1165,7 +295,6 @@ LIST * call_rule( char * rulename, FRAME * caller_frame, ... )
inner->prev_user = caller_frame->module->user_module ?
caller_frame : caller_frame->prev_user;
inner->module = caller_frame->module;
- inner->procedure = 0;
va_start( va, caller_frame );
for ( ; ; )
@@ -1185,218 +314,12 @@ LIST * call_rule( char * rulename, FRAME * caller_frame, ... )
}
-/*
- * compile_rules() - compile a chain of rules
- *
- * parse->left single rule
- * parse->right more compile_rules() by right-recursion
- */
-
-LIST * compile_rules( PARSE * parse, FRAME * frame )
-{
- /* Ignore result from first statement; return the 2nd. */
- /* Optimize recursion on the right by looping. */
- do list_free( parse_evaluate( parse->left, frame ) );
- while ( ( parse = parse->right )->func == compile_rules );
- return parse_evaluate( parse, frame );
-}
-
-
-/*
- * assign_var_mode() - convert ASSIGN_XXX compilation flag into corresponding
- * VAR_XXX variable set flag.
- */
-
-static int assign_var_mode( int parsenum, char const * * tracetext )
-{
- char const * trace;
- int setflag;
- switch ( parsenum )
- {
- case ASSIGN_SET : setflag = VAR_SET ; trace = "=" ; break;
- case ASSIGN_APPEND : setflag = VAR_APPEND ; trace = "+="; break;
- case ASSIGN_DEFAULT: setflag = VAR_DEFAULT; trace = "?="; break;
- default: setflag = VAR_SET ; trace = "" ; break;
- }
- if ( tracetext )
- *tracetext = trace ;
- return setflag;
-}
-
-/*
- * compile_set() - compile the "set variable" statement
- *
- * parse->left variable names
- * parse->right variable values
- * parse->num ASSIGN_SET/APPEND/DEFAULT
- */
-
-LIST * compile_set( PARSE * parse, FRAME * frame )
-{
- LIST * nt = parse_evaluate( parse->left, frame );
- LIST * ns = parse_evaluate( parse->right, frame );
- LIST * l;
- char const * trace;
- int setflag = assign_var_mode( parse->num, &trace );
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "set", frame );
- list_print( nt );
- printf( " %s ", trace );
- list_print( ns );
- printf( "\n" );
- }
-
- /* Call var_set to set variable. var_set keeps ns, so need to copy it. */
- for ( l = nt; l; l = list_next( l ) )
- var_set( l->string, list_copy( L0, ns ), setflag );
- list_free( nt );
- return ns;
-}
-
-
-/*
- * compile_setcomp() - support for `rule` - save parse tree.
- *
- * parse->string rule name
- * parse->left rules for rule
- * parse->right optional list-of-lists describing arguments
- */
-
-LIST * compile_setcomp( PARSE * parse, FRAME * frame )
-{
- argument_list * arg_list = 0;
-
- /* Create new LOL describing argument requirements if supplied. */
- if ( parse->right )
- {
- PARSE * p;
- arg_list = args_new();
- for ( p = parse->right; p; p = p->left )
- lol_add( arg_list->data, parse_evaluate( p->right, frame ) );
- }
-
- new_rule_body( frame->module, parse->string, arg_list, parse->left, !parse->num );
- return L0;
-}
-
-
-/*
- * compile_setexec() - support for `actions` - save execution string.
- *
- * parse->string rule name
- * parse->string1 OS command string
- * parse->num flags
- * parse->left `bind` variables
- *
- * Note that the parse flags (as defined in compile.h) are transferred directly
- * to the rule flags (as defined in rules.h).
- */
-
-LIST * compile_setexec( PARSE * parse, FRAME * frame )
-{
- LIST * bindlist = parse_evaluate( parse->left, frame );
- new_rule_actions( frame->module, parse->string, parse->string1, bindlist, parse->num );
- return L0;
-}
-
-
-/*
- * compile_settings() - compile the "on =" (set variable on exec) statement.
- *
- * parse->left variable names
- * parse->right target name
- * parse->third variable value
- * parse->num ASSIGN_SET/APPEND
- */
-
-LIST * compile_settings( PARSE * parse, FRAME * frame )
-{
- LIST * nt = parse_evaluate( parse->left, frame );
- LIST * ns = parse_evaluate( parse->third, frame );
- LIST * targets = parse_evaluate( parse->right, frame );
- LIST * ts;
- char const * trace;
- int setflag = assign_var_mode( parse->num, &trace );
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "set", frame );
- list_print( nt );
- printf( " on " );
- list_print( targets );
- printf( " %s ", trace );
- list_print( ns );
- printf( "\n" );
- }
-
- /* Call addsettings() to save variable setting. addsettings() keeps ns, so
- * need to copy it. Pass append flag to addsettings().
- */
- for ( ts = targets; ts; ts = list_next( ts ) )
- {
- TARGET * t = bindtarget( ts->string );
- LIST * l;
-
- for ( l = nt; l; l = list_next( l ) )
- t->settings = addsettings( t->settings, setflag, l->string,
- list_copy( (LIST *)0, ns ) );
- }
-
- list_free( nt );
- list_free( targets );
- return ns;
-}
-
-
-/*
- * compile_switch() - compile 'switch' rule.
- *
- * parse->left switch value (only 1st used)
- * parse->right cases
- *
- * cases->left 1st case
- * cases->right next cases
- *
- * case->string argument to match
- * case->left parse tree to execute
- */
-
-LIST * compile_switch( PARSE * parse, FRAME * frame )
-{
- LIST * nt = parse_evaluate( parse->left, frame );
- LIST * result = 0;
-
- if ( DEBUG_COMPILE )
- {
- debug_compile( 0, "switch", frame );
- list_print( nt );
- printf( "\n" );
- }
-
- /* Step through cases. */
- for ( parse = parse->right; parse; parse = parse->right )
- {
- if ( !glob( parse->left->string, nt ? nt->string : "" ) )
- {
- /* Get & exec parse tree for this case. */
- parse = parse->left->left;
- result = parse_evaluate( parse, frame );
- break;
- }
- }
-
- list_free( nt );
- return result;
-}
-
/*
* debug_compile() - printf with indent to show rule expansion.
*/
-static void debug_compile( int which, char * s, FRAME * frame )
+static void debug_compile( int which, const char * s, FRAME * frame )
{
static int level = 0;
static char indent[36] = ">>>>|>>>>|>>>>|>>>>|>>>>|>>>>|>>>>|";
@@ -1405,7 +328,7 @@ static void debug_compile( int which, char * s, FRAME * frame )
{
int i;
- print_source_line( frame->procedure );
+ print_source_line( frame );
i = ( level + 1 ) * 2;
while ( i > 35 )
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 04:25:15 +0000