personal/mumble
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

some scaffolding for adding functions

Browse Source
This commit is contained in:
NunoSempere 2023-05-06 23:28:04 -04:00
parent 0bfdb1b962
commit 9009175bc9
2 changed files with 65 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
mumble
View File

Binary file not shown.

78
src/mumble.c
View File

@ -44,7 +44,8 @@ enum {
LISPVAL_NUM,
LISPVAL_ERR,
LISPVAL_SYM,
LISPVAL_FUNC,
LISPVAL_BUILTIN_FUNC,
LISPVAL_USER_FUNC,
LISPVAL_SEXPR,
LISPVAL_QEXPR,
};
@ -118,7 +119,7 @@ lispval* lispval_builtin_func(lispbuiltin func, char* builtin_func_name)
if (VERBOSE)
printfln("Allocating func name:%s, pointer: %p", builtin_func_name, func);
lispval* v = malloc(sizeof(lispval));
v->type = LISPVAL_FUNC;
v->type = LISPVAL_BUILTIN_FUNC;
v->count = 0;
v->builtin_func_name = malloc(strlen(builtin_func_name) + 1);
strcpy(v->builtin_func_name, builtin_func_name);
@ -128,6 +129,18 @@ lispval* lispval_builtin_func(lispbuiltin func, char* builtin_func_name)
return v;
}
lispenv* new_lispenv();
lispval* lispval_lambda_func(lispval* variables, lispval* manipulation){
lispval* v = malloc(sizeof(lispval));
v->type = LISPVAL_USER_FUNC;
v->builtin_func = NULL;
v->env = new_lispenv();
v->variables = variables;
v->manipulation = manipulation;
// unclear how to garbage-collect this. Maybe add to a list and collect at the end?
return v;
}
lispval* lispval_sexpr(void)
{
if (VERBOSE)
@ -190,16 +203,41 @@ void delete_lispval(lispval* v)
if (VERBOSE)
printfln("Freed sym");
break;
case LISPVAL_FUNC:
if (VERBOSE)
printfln("Freeing func");
if (v->builtin_func_name != NULL)
free(v->builtin_func_name);
v->builtin_func_name = NULL;
case LISPVAL_BUILTIN_FUNC:
if (v->builtin_func_name != NULL){
if (VERBOSE){
printfln("Freeing builtin func");
}
free(v->builtin_func_name);
v->builtin_func_name = NULL;
}
if (v != NULL)
free(v);
if (VERBOSE)
printfln("Freed func");
printfln("Freed builtin func");
// Don't do anything with v->func for now
// Though we could delete the pointer to the function later
// free(v->func);
break;
case LISPVAL_USER_FUNC:
if (VERBOSE)
printfln("Freeing user-defined func");
if (v->env != NULL){
free(v->env);
v->env = NULL;
}
if (v->variables != NULL){
free(v->variables);
v->variables = NULL;
}
if (v->manipulation != NULL){
free(v->manipulation);
v->manipulation = NULL;
}
if (v != NULL)
free(v);
if (VERBOSE)
printfln("Freed user-defined func");
// Don't do anything with v->func for now
// Though we could delete the pointer to the function later
// free(v->func);
@ -399,9 +437,12 @@ void print_lispval_tree(lispval* v, int indent_level)
case LISPVAL_SYM:
printfln("%sSymbol: %s", indent, v->sym);
break;
case LISPVAL_FUNC:
case LISPVAL_BUILTIN_FUNC:
printfln("%sFunction, name: %s, pointer: %p", indent, v->builtin_func_name, v->builtin_func);
break;
case LISPVAL_USER_FUNC:
printfln("%sUser-defined function: %p", indent, v->env); // Identify it with its environment?
break;
case LISPVAL_SEXPR:
printfln("%sSExpr, with %d children:", indent, v->count);
for (int i = 0; i < v->count; i++) {
@ -439,9 +480,12 @@ void print_lispval_parenthesis(lispval* v)
case LISPVAL_SYM:
printf("%s ", v->sym);
break;
case LISPVAL_FUNC:
case LISPVAL_BUILTIN_FUNC:
printf("<function, name: %s, pointer: %p> ", v->builtin_func_name, v->builtin_func);
break;
case LISPVAL_USER_FUNC:
printf("<user-defined function, pointer: %p> ", v->env);
break;
case LISPVAL_SEXPR:
printf("( ");
for (int i = 0; i < v->count; i++) {
@ -497,9 +541,12 @@ lispval* clone_lispval(lispval* old)
case LISPVAL_SYM:
new = lispval_sym(old->sym);
break;
case LISPVAL_FUNC:
case LISPVAL_BUILTIN_FUNC:
new = lispval_builtin_func(old->builtin_func, old->builtin_func_name);
break;
case LISPVAL_USER_FUNC:
new = lispval_lambda_func(old->variables, old->manipulation);
break;
case LISPVAL_SEXPR:
new = lispval_sexpr();
break;
@ -874,7 +921,7 @@ lispval* evaluate_lispval(lispval* l, lispenv* env)
// Check if the first element is an operation.
if (VERBOSE)
printfln("Checking is first element is a function");
if (l->count >= 2 && ((l->cell[0])->type == LISPVAL_FUNC)) {
if (l->count >= 2 && ((l->cell[0])->type == LISPVAL_BUILTIN_FUNC)){
if (VERBOSE)
printfln("Passed check");
@ -909,6 +956,11 @@ lispval* evaluate_lispval(lispval* l, lispenv* env)
printfln("Cleaned up. Returning");
return answer;
}
if (l->count >= 2 && ((l->cell[0])->type == LISPVAL_USER_FUNC)) {
// Do something with user-defined functions here
}
return l;
}
// Increase or decrease verbosity level manually