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Start using switches to warn on unhandled types

This commit is contained in:
= 2020-05-23 18:01:15 +01:00
parent edf57a3050
commit f0a8f6ca43
3 changed files with 142 additions and 80 deletions
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8
src/Makefile
View File

@ -2,16 +2,16 @@ files = pebblisp.c tokens.c object.c env.c
exe = pebblisp
all:
gcc -g -O0 -o $(exe) -D STANDALONE $(files) && ./tests.sh
gcc -g -O0 -Wall -o $(exe) -D STANDALONE $(files) && ./tests.sh
notest:
gcc -g -O0 -o $(exe) -D STANDALONE $(files)
gcc -g -O0 -Wall -o $(exe) -D STANDALONE $(files)
val:
gcc -g -O0 -o $(exe) -D STANDALONE $(files) && ./tests.sh -val
gcc -g -O0 -Wall -o $(exe) -D STANDALONE $(files) && ./tests.sh -val
debug:
gcc -g -O0 -o $(exe) -D STANDALONE -D DEBUG $(files)
gcc -g -O0 -Wall -o $(exe) -D STANDALONE -D DEBUG $(files)
run:
./$(exe)

143
src/object.c
View File

@ -95,14 +95,15 @@ inline int isEmpty(const Object *obj)
case TYPE_LAMBDA:
return obj->lambda == NULL;
case TYPE_SYMBOL:
return obj->string == NULL;
case TYPE_STRING:
return obj->string == NULL || obj->string[0] == '\0';
case TYPE_FUNC:
return obj->func == NULL;
case TYPE_ERROR:
return obj->err == 0;
default:
return 0;
}
return 0;
}
/**
@ -189,6 +190,26 @@ void nf_addToList(Object *dest, const Object src)
allocObject(&tail(dest)->forward, src);
}
static const char *errorText[] = {
"MISMATCHED_PARENS",
"BAD_LIST_OF_SYMBOL_STRINGS",
"TYPE_LIST_NOT_CAUGHT",
"NULL_ENV",
"EMPTY_ENV",
"BUILT_IN_NOT_FOUND",
"NULL_PARSE",
"NULL_LAMBDA_LIST",
"NULL_MAP_ARGS",
"LAMBDA_ARGS_NOT_LIST",
"DID_NOT_FIND_SYMBOL",
"BAD_TYPE",
"UNEXPECTED_FORM",
"LISTS_NOT_SAME_SIZE",
"SYMBOLS_CANT_START_WITH_DIGITS",
"UNSUPPORTED_NUMBER_TYPE",
"NOT_A_SYMBOL"
};
/**
* Prints out the error of a given error Object
* Doesn't print anything if `obj` is NULL or not an error type
@ -247,22 +268,33 @@ char* stringObj(char *dest, const Object *obj)
if(!dest || !obj)
return NULL;
const Type t = obj->type;
if(t == TYPE_NUMBER) {
switch(obj->type) {
case TYPE_NUMBER:
snprintf(dest, RESULT_LENGTH, "%d", obj->number);
} else if(t == TYPE_BOOL) {
break;
case TYPE_BOOL:
snprintf(dest, RESULT_LENGTH, "%s", obj->number ? "T" : "F");
} else if(t == TYPE_STRING || t == TYPE_SYMBOL) {
break;
case TYPE_STRING:
snprintf(dest, RESULT_LENGTH, "%s", obj->string);
} else if(t == TYPE_LIST) {
break;
case TYPE_SYMBOL:
snprintf(dest, RESULT_LENGTH, "`%s`", obj->string);
break;
case TYPE_LIST:
stringList(dest, obj);
} else if(t == TYPE_ERROR) {
break;
case TYPE_ERROR:
snprintf(dest, RESULT_LENGTH, "E%d", obj->err);
} else {
break;
case TYPE_FUNC:
case TYPE_LAMBDA:
snprintf(dest, RESULT_LENGTH, "X%d", obj->number);
}
if(!isValidType(*obj))
snprintf(dest, RESULT_LENGTH, "BAD_TYPE(%d) X%d", obj->type, obj->number);
return dest;
}
@ -281,27 +313,39 @@ void debugObj(const Object *obj)
void _printList(const Object *list, int newline);
void _printObj(const Object *obj, int newline)
{
if(obj->type == TYPE_NUMBER) {
switch(obj->type) {
case TYPE_NUMBER:
printd("TYPE_NUMBER");
} else if(obj->type == TYPE_BOOL) {
break;
case TYPE_BOOL:
printd("TYPE_BOOL");
} else if(obj->type == TYPE_LIST) {
break;
case TYPE_LIST:
printd("TYPE_LIST\n");
} else if(obj->type == TYPE_FUNC) {
break;
case TYPE_FUNC:
printd("TYPE_FUNC");
} else if(obj->type == TYPE_SYMBOL) {
break;
case TYPE_SYMBOL:
printd("TYPE_SYMBOL");
} else if(obj->type == TYPE_LAMBDA) {
break;
case TYPE_STRING:
printd("TYPE_STRING");
break;
case TYPE_LAMBDA:
printd("TYPE_LAMBDA Params:\n");
printObj(&obj->lambda->params);
printd("Lambda Body: \n");
printObj(&obj->lambda->body);
return;
} else if(obj->type == TYPE_ERROR) {
case TYPE_ERROR:
printd("TYPE_ERROR: ");
} else {
printd("TYPE_OTHER (as int)");
break;
}
if(!isValidType(*obj))
printd("TYPE_OTHER (as int)");
char temp[100] = "";
stringObj(temp, obj);
if(newline)
@ -360,17 +404,27 @@ void cleanObject(Object *target)
if(target == NULL)
return;
const Type t = target->type;
if(t == TYPE_STRING || t == TYPE_SYMBOL) {
switch(target->type) {
case TYPE_STRING:
case TYPE_SYMBOL:
free(target->string);
target->string = NULL;
} else if(t == TYPE_LIST) {
break;
case TYPE_LIST:
deleteList(target);
} else if(t == TYPE_LAMBDA) {
break;
case TYPE_LAMBDA:
cleanObject(&target->lambda->params);
cleanObject(&target->lambda->body);
free(target->lambda);
break;
case TYPE_BOOL:
case TYPE_NUMBER:
case TYPE_FUNC:
case TYPE_ERROR:
break;
}
target->forward = NULL;
}
@ -493,9 +547,26 @@ inline Object startList(const Object start)
return list;
}
inline int isStringy(const Object src)
inline int isStringy(const Object test)
{
return src.type == TYPE_STRING || src.type == TYPE_SYMBOL;
return test.type == TYPE_STRING || test.type == TYPE_SYMBOL;
}
inline int isValidType(const Object test)
{
switch(test.type) {
case TYPE_NUMBER:
case TYPE_BOOL:
case TYPE_LIST:
case TYPE_FUNC:
case TYPE_SYMBOL:
case TYPE_LAMBDA:
case TYPE_STRING:
case TYPE_ERROR:
return 1;
}
return 0;
}
/**
@ -525,10 +596,22 @@ inline Object cloneList(const Object src)
inline Object cloneObject(const Object src)
{
return src.type == TYPE_LIST? cloneList(src) :
src.type == TYPE_LAMBDA? cloneLambda(src) :
isStringy(src)? cloneString(src) :
src;
switch(src.type) {
case TYPE_LIST:
return cloneList(src);
case TYPE_LAMBDA:
return cloneLambda(src);
case TYPE_STRING:
case TYPE_SYMBOL:
return cloneString(src);
case TYPE_BOOL:
case TYPE_NUMBER:
case TYPE_FUNC:
case TYPE_ERROR:
; // Fall through to plain return
}
return src;
}
inline Object numberObject(int num)

25
src/object.h
View File

@ -39,28 +39,6 @@ enum errorCode {
NOT_A_SYMBOL
};
//#ifdef STANDALONE
static const char *errorText[] = {
"MISMATCHED_PARENS",
"BAD_LIST_OF_SYMBOL_STRINGS",
"TYPE_LIST_NOT_CAUGHT",
"NULL_ENV",
"EMPTY_ENV",
"BUILT_IN_NOT_FOUND",
"NULL_PARSE",
"NULL_LAMBDA_LIST",
"NULL_MAP_ARGS",
"LAMBDA_ARGS_NOT_LIST",
"DID_NOT_FIND_SYMBOL",
"BAD_TYPE",
"UNEXPECTED_FORM",
"LISTS_NOT_SAME_SIZE",
"SYMBOLS_CANT_START_WITH_DIGITS",
"UNSUPPORTED_NUMBER_TYPE",
"NOT_A_SYMBOL"
};
//#endif
#define MALLOC_FLAG 64
typedef enum Type {
@ -121,7 +99,8 @@ void printAndClean(Object *target);
void allocObject(Object **spot, const Object src);
void appendList(Object *dest, const Object *src);
int isStringy(const Object src);
int isStringy(const Object test);
int isValidType(const Object test);
Object cloneList(const Object src);
Object cloneString(Object obj);