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Overview
Comment:added optional support for jimtcl varaccess, for better variables. though it requires a customized jimtcl
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SHA3-256:381dd22404f192d076bdae84ff00810d80252befdae435f7bb287a403cac48bf
User & Date: grable 2018-11-02 16:27:52
Context
2018-11-02
16:36
set varacces to disabled as default check-in: 3fde67ba9a user: grable tags: trunk
16:27
added optional support for jimtcl varaccess, for better variables. though it requires a customized jimtcl check-in: 381dd22404 user: grable tags: trunk
2018-11-01
19:24
added BlitzMax test to makefile check-in: a52e2db53b user: grable tags: trunk
Changes
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Changes to jimff-commands.c. 

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		[JIMFF_SYM_FUNCTION] = "-function",
		[JIMFF_SYM_VARIABLE] = "-variable",
		[JIMFF_SYM_POINTER] = "-pointer",
		NULL,
	};
	static Jim_CmdProc* const symbolcmdfns[] = {
		[JIMFF_SYM_FUNCTION] = fn_symbol_call,

		[JIMFF_SYM_VARIABLE] = fn_symbol_set,

		/* pointers are objects set to variables instead of commands */
	};
	
	if(argc < 2) {
wrongnumargs:
		Jim_WrongNumArgs( interp, 1, argv, "?-function | -variable | -pointer? ?" JIMFF_SELFLIBRARY_NAME " | library? {name ?alias?} typetag");
		return JIM_ERR;
................................................................................
											argv0, name, lib ? lib->name : NULL);
		return JIM_ERR;
	} else if(sym == JIMFF_INVALID_TYPETAG) {
		Jim_SetResultFormatted( interp, "%#s: invalid typetag for symbol \"%s\"", argv0, name);
		return JIM_ERR;
	}
	









	if(symboltype == JIMFF_SYM_POINTER) {
		Jim_Obj* ptrobj = jimff_newpointer( ctx, sym->addr, sym->size, 0);
		Jim_SetVariableStr( interp, sym->name, ptrobj);
		Jim_SetResult( interp, ptrobj);
	} else {



		if(Jim_CreateCommand( interp, sym->name, symbolcmdfns[symboltype], sym, free_sym) != JIM_OK) return JIM_ERR;
		Jim_SetResultString( interp, sym->name, -1);
	}
	return JIM_OK;
}

static int fn_context_callback( Jim_Interp* interp, int argc, Jim_Obj* const argv[]) {
	Jim_Obj* argv0 = argv[0];
	struct jimff_context* ctx = Jim_CmdPrivData(interp);








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		[JIMFF_SYM_FUNCTION] = "-function",
		[JIMFF_SYM_VARIABLE] = "-variable",
		[JIMFF_SYM_POINTER] = "-pointer",
		NULL,
	};
	static Jim_CmdProc* const symbolcmdfns[] = {
		[JIMFF_SYM_FUNCTION] = fn_symbol_call,
#ifndef JIMFF_ENABLE_JIM_VARACCESS
		[JIMFF_SYM_VARIABLE] = fn_symbol_set,
#endif
		/* pointers are objects set to variables instead of commands */
	};
	
	if(argc < 2) {
wrongnumargs:
		Jim_WrongNumArgs( interp, 1, argv, "?-function | -variable | -pointer? ?" JIMFF_SELFLIBRARY_NAME " | library? {name ?alias?} typetag");
		return JIM_ERR;
................................................................................
											argv0, name, lib ? lib->name : NULL);
		return JIM_ERR;
	} else if(sym == JIMFF_INVALID_TYPETAG) {
		Jim_SetResultFormatted( interp, "%#s: invalid typetag for symbol \"%s\"", argv0, name);
		return JIM_ERR;
	}
	
	switch(symboltype) {
#ifdef JIMFF_ENABLE_JIM_VARACCESS
		case JIMFF_SYM_VARIABLE: {
			Jim_Obj* varname = Jim_NewStringObj( interp, sym->name, -1);
			Jim_SetVariableAccess( interp, varname, jimff_varaccess, NULL, NULL, sym);
			Jim_SetResult( interp, varname);
			break;
		}
#endif
		case JIMFF_SYM_POINTER: {
			Jim_Obj* ptrobj = jimff_newpointer( ctx, sym->addr, sym->size, 0);
			Jim_SetVariableStr( interp, sym->name, ptrobj);
			Jim_SetResult( interp, ptrobj);

			break;
		}
		default:
			if(Jim_CreateCommand( interp, sym->name, symbolcmdfns[symboltype], sym, free_sym) != JIM_OK) return JIM_ERR;
			Jim_SetResultString( interp, sym->name, -1);
	}
	return JIM_OK;
}

static int fn_context_callback( Jim_Interp* interp, int argc, Jim_Obj* const argv[]) {
	Jim_Obj* argv0 = argv[0];
	struct jimff_context* ctx = Jim_CmdPrivData(interp);

Changes to jimff-set.c. 

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#define jimff_get( interp, sym)	jimff_set( (interp), (sym), NULL)

JIMFF_API Jim_Obj* jimff_set( struct jimff_context* ctx, const struct jimff_symbol* sym, Jim_Obj* value) {
	assert( ctx );
	assert( sym );

	
#define DPFLAGS					((sym->typeinfo.typetag[0] == 'P') ? JIMFF_DYNAMIC_POINTER_FLAGS : 0)
	
#define SYMVAR(tag)				(((union jimff_result*)sym->addr)->tag)
	
#define GET_INT(tag)			Jim_NewIntObj( ctx->interp, SYMVAR(tag))
#define GET_FLOAT(tag)		Jim_NewDoubleObj( ctx->interp, SYMVAR(tag))
#define GET_STRING(tag)		Jim_NewStringObj( ctx->interp, SYMVAR(tag), -1)
................................................................................
													SYMVAR(tag) = tmp.p;																		\
												} else {																									\
													tmp.p = jimff_getpointer( ctx, value, &ptrsize, 0);								\
													if(ptrsize == -1) return NULL;																\
													if(sym->typeinfo.pointersizes[0] && sym->typeinfo.pointersizes[0] != ptrsize)return NULL;			\
													SYMVAR(tag) = tmp.p;																		\
												} })
												
	
	union jimff_result tmp = { 0 };
	int ptrsize;
	
	switch(sym->typeinfo.returntype) {
		case JIMFF_TYPE_VOID:			return NULL;
		case JIMFF_TYPE_CHAR:
................................................................................
		case JIMFF_TYPE_FLOAT:			if(value) SET_FLOAT(f); else return GET_FLOAT(f); break;
		case JIMFF_TYPE_DOUBLE:		if(value) SET_FLOAT(d); else return GET_FLOAT(d); break;
		case JIMFF_TYPE_VOIDP:			if(value) SET_VOIDP(p); else return GET_VOIDP(p); break;
		case JIMFF_TYPE_STRUCT:			return NULL;
	}
	
#undef SYMVAR
	#undef DPFLAGS
#undef GET_INT
#undef GET_FLOAT
#undef GET_STRING
#undef GET_POINTER
#undef GET_VOIDP
#undef SET_INT
#undef SET_FLOAT
#undef SET_VOIDP
	
	return value;
}



















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#define jimff_get( interp, sym)	jimff_set( (interp), (sym), NULL)

JIMFF_API Jim_Obj* jimff_set( struct jimff_context* ctx, const struct jimff_symbol* sym, Jim_Obj* value) {
	assert( ctx );
	assert( sym );


#define DPFLAGS					((sym->typeinfo.typetag[0] == 'P') ? JIMFF_DYNAMIC_POINTER_FLAGS : 0)
	
#define SYMVAR(tag)				(((union jimff_result*)sym->addr)->tag)
	
#define GET_INT(tag)			Jim_NewIntObj( ctx->interp, SYMVAR(tag))
#define GET_FLOAT(tag)		Jim_NewDoubleObj( ctx->interp, SYMVAR(tag))
#define GET_STRING(tag)		Jim_NewStringObj( ctx->interp, SYMVAR(tag), -1)
................................................................................
													SYMVAR(tag) = tmp.p;																		\
												} else {																									\
													tmp.p = jimff_getpointer( ctx, value, &ptrsize, 0);								\
													if(ptrsize == -1) return NULL;																\
													if(sym->typeinfo.pointersizes[0] && sym->typeinfo.pointersizes[0] != ptrsize)return NULL;			\
													SYMVAR(tag) = tmp.p;																		\
												} })

	
	union jimff_result tmp = { 0 };
	int ptrsize;
	
	switch(sym->typeinfo.returntype) {
		case JIMFF_TYPE_VOID:			return NULL;
		case JIMFF_TYPE_CHAR:
................................................................................
		case JIMFF_TYPE_FLOAT:			if(value) SET_FLOAT(f); else return GET_FLOAT(f); break;
		case JIMFF_TYPE_DOUBLE:		if(value) SET_FLOAT(d); else return GET_FLOAT(d); break;
		case JIMFF_TYPE_VOIDP:			if(value) SET_VOIDP(p); else return GET_VOIDP(p); break;
		case JIMFF_TYPE_STRUCT:			return NULL;
	}
	
#undef SYMVAR
#undef DPFLAGS
#undef GET_INT
#undef GET_FLOAT
#undef GET_STRING
#undef GET_POINTER
#undef GET_VOIDP
#undef SET_INT
#undef SET_FLOAT
#undef SET_VOIDP
	
	return value;
}

#ifdef JIMFF_ENABLE_JIM_VARACCESS
static Jim_Obj* jimff_varaccess( struct Jim_Interp* interp, struct Jim_Var* var, int set, Jim_Obj* name, Jim_Obj* value) {
	struct jimff_symbol* sym = var->privdata;
	if(set) {
		return jimff_set( sym->library->ctx, sym, value);
	} else {
		return jimff_get( sym->library->ctx, sym);
	}
}
#endif

Changes to jimff.c. 

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/****************************************************************************************************
 * jimff config
 */
 
// define this to disable the context info command
//#define JIMFF_DISABLE_INFO_COMMAND





/****************************************************************************************************
 * jimff misc
 */

#include "strrpbrk.c"








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/****************************************************************************************************
 * jimff config
 */
 
// define this to disable the context info command
//#define JIMFF_DISABLE_INFO_COMMAND

// define this to enable custom variable access in jimtcl
#define JIMFF_ENABLE_JIM_VARACCESS


/****************************************************************************************************
 * jimff misc
 */

#include "strrpbrk.c"

Changes to tests/jimff_test_all.tcl. 

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# testing functions
#
print "printed using:\t::print"
ff::print "printed using:\tff::print"
puts {}

#
# testing variables 
#


puts "test_var_i = [test_var_i]"
puts "test_var_f = [test_var_f]"
puts "test_var_z = \"[test_var_z]\""
puts "changing the variables..."
test_var_i 200
test_var_f 3.21
test_var_z "Goodbye World?"
puts "test_var_i = [test_var_i]"
puts "test_var_f = [test_var_f]"
puts "test_var_z = \"[test_var_z]\""













puts {}

#
# testing pointer variables and external pointers
#
puts "test_array size = [ff::pointer -size $test_array]"
puts "test_array = $test_array"








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# testing functions
#
print "printed using:\t::print"
ff::print "printed using:\tff::print"
puts {}

#
# testing variables, can be either a command or a variable if jimtcl varaccess is enabled
#
if {[exists -command test_var_i]} {
	puts "variables are commands"
	puts "test_var_i = [test_var_i]"
	puts "test_var_f = [test_var_f]"
	puts "test_var_z = \"[test_var_z]\""
	puts "changing the variables..."
	test_var_i 200
	test_var_f 3.21
	test_var_z "Goodbye World?"
	puts "test_var_i = [test_var_i]"
	puts "test_var_f = [test_var_f]"
	puts "test_var_z = \"[test_var_z]\""
} else {
	puts "variables are variables"
	puts "test_var_i = $test_var_i"
	puts "test_var_f = $test_var_f"
	puts "test_var_z = \"$test_var_z\""
	puts "changing the variables..."
	set test_var_i 200
	set test_var_f 3.21
	set test_var_z "Goodbye World?"
	puts "test_var_i = $test_var_i"
	puts "test_var_f = $test_var_f"
	puts "test_var_z = \"$test_var_z\""
}
puts {}

#
# testing pointer variables and external pointers
#
puts "test_array size = [ff::pointer -size $test_array]"
puts "test_array = $test_array"

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