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Added while, and other fixes.

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antirez 2022-12-21 21:32:48 +01:00
parent 68e6076719
commit 16c99cf2a0
2 changed files with 29 additions and 19 deletions
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5
Makefile
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@ -1,7 +1,10 @@
all: aocla
SANITIZE=-fsanitize=address
aocla: aocla.c
$(CC) -g -ggdb aocla.c -Wall -W -pedantic -O2 -o aocla
$(CC) -g -ggdb aocla.c -Wall -W -pedantic -O2 \
$(SANITIZE) -o aocla
clean:
rm -rf aocla *.dSYM

17
aocla.c
View file

@ -496,7 +496,7 @@ aoclactx *newInterpreter(void) {
i->stacklen = 0;
i->stack = NULL; /* Will be allocated on push of new elements. */
i->proc = NULL; /* That's a linked list. Starts empty. */
i->frame = newStackFrame(i);
i->frame = newStackFrame(NULL);
loadLibrary(i);
return i;
}
@ -778,9 +778,11 @@ int procDef(aoclactx *ctx) {
return 0;
}
/* if and ifelse. */
/* if, ifelse, while. */
int procIf(aoclactx *ctx) {
int w = ctx->frame->curproc->name[0] == 'w'; /* while? */
int e = ctx->frame->curproc->name[2] == 'e'; /* ifelse? */
int retval = 1;
if (e) {
if (checkStackType(ctx,3,OBJ_TYPE_LIST,OBJ_TYPE_LIST,OBJ_TYPE_LIST))
return 1;
@ -794,6 +796,7 @@ int procIf(aoclactx *ctx) {
ifbranch = stackPop(ctx);
cond = stackPop(ctx);
while(w) {
/* Evaluate the conditional program. */
if (eval(ctx,cond)) goto rterr;
if (checkStackType(ctx,1,OBJ_TYPE_BOOL)) goto rterr;
@ -807,14 +810,17 @@ int procIf(aoclactx *ctx) {
if (eval(ctx,ifbranch)) goto rterr;
} else if (e) {
if (eval(ctx,elsebranch)) goto rterr;
} else if (w) {
break; /* If while condition is false, break the loop. */
}
return 0;
}
retval = 0; /* Success. */
rterr: /* Run time error. */
rterr: /* Cleanup. We jump here on error with retval = 1. */
release(cond);
release(ifbranch);
release(elsebranch);
return 1;
return retval;
}
/* Evaluate the given list. */
@ -850,6 +856,7 @@ void loadLibrary(aoclactx *ctx) {
addProc(ctx,"def",procDef,NULL);
addProc(ctx,"if",procIf,NULL);
addProc(ctx,"ifelse",procIf,NULL);
addProc(ctx,"while",procIf,NULL);
addProc(ctx,"eval",procEval,NULL);
addProc(ctx,"print",procPrint,NULL);
addProcString(ctx,"dup","[(x) $x $x]");