X-Git-Url: https://code.kerkeslager.com/?a=blobdiff_plain;f=templates%2Fprogram.c;h=f8095bf838a3934733e628d67976060c69109054;hb=379bdcf727cc66ee58d36a112e306b81e427fcf1;hp=db1abdfb5b73b076932628a29a1fecb0ee8c9cdf;hpb=728158b2204b6454eecc12bf2988b3f0cbb9ec81;p=fur

diff --git a/templates/program.c b/templates/program.c
index db1abdf..f8095bf 100644
--- a/templates/program.c
+++ b/templates/program.c
@@ -1,5 +1,6 @@
 #include <assert.h>
 #include <inttypes.h>
+#include <setjmp.h>
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
@@ -66,7 +67,7 @@ typedef struct Closure Closure;
 struct Closure
 {
   Environment* closed;
-  Object (*call)(EnvironmentPool*, Environment*, size_t, Stack*);
+  Object (*call)(EnvironmentPool*, Environment*, size_t, Stack*, const unsigned long, jmp_buf);
 };
 
 struct List;
@@ -162,6 +163,23 @@ void Stack_initialize(Stack* self)
   self->length = 0;
 }
 
+Stack* Stack_construct()
+{
+  Stack* result = malloc(sizeof(Stack));
+  Stack_initialize(result);
+  return result;
+}
+
+void Stack_destruct(Stack* self)
+{
+  free(self);
+}
+
+bool Stack_any(Stack* self)
+{
+  return self->length > 0;
+}
+
 void Stack_push(Stack* self, Object item)
 {
   assert(self->length < 256);
@@ -315,6 +333,22 @@ void Object_deinitialize(Object* self)
   }
 }
 
+typedef uint32_t StackSnapshot;
+
+StackSnapshot Stack_takeSnapshot(Stack* self)
+{
+  return (StackSnapshot) self->length;
+}
+
+void Stack_rewind(Stack* self, StackSnapshot snapshot)
+{
+  while(self->length > snapshot)
+  {
+    Object item = Stack_pop(self);
+    Object_deinitialize(&item);
+  }
+}
+
 void Environment_deinitialize(Environment* self)
 {
   EnvironmentNode* next;
@@ -516,6 +550,13 @@ Environment* EnvironmentPool_allocate(EnvironmentPool* self)
   return EnvironmentPool_allocate(previous->overflow);
 }
 
+Environment* Environment_construct(EnvironmentPool* environmentPool, Environment* parent)
+{
+  Environment* environment = EnvironmentPool_allocate(environmentPool);
+  Environment_initialize(environment, parent);
+  return environment;
+}
+
 Object integerLiteral(int32_t literal)
 {
   Object result;
@@ -532,20 +573,105 @@ Object stringLiteral(const char* literal)
   return result;
 }
 
-// TODO Make this conditionally added
-Object operator$negate(Object input)
+{% if 'pow' in builtins %}
+Object builtin$pow$implementation(
+    EnvironmentPool* environmentPool,
+    Environment* parent,
+    size_t argc,
+    Stack* stack,
+    const unsigned long line,
+    jmp_buf parentJump)
 {
-  assert(input.type == INTEGER);
+  // Must unload items in reverse order
+  Object exponent = Stack_pop(stack);
+  Object base = Stack_pop(stack);
+
+  assert(base.type == INTEGER);
+  assert(exponent.type == INTEGER);
 
   Object result;
   result.type = INTEGER;
-  result.instance.integer = -input.instance.integer;
+  result.instance.integer = pow(base.instance.integer, exponent.instance.integer);
+  return result;
+}
+
+Object builtin$pow = { CLOSURE, (Instance)(Closure){ NULL, builtin$pow$implementation } };
+{% endif %}
+
+Object builtin$negate$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 1);
+
+  Object argument = Stack_pop(stack);
+
+  assert(argument.type == INTEGER);
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (-argument.instance.integer)
+  };
+
   return result;
 }
+Object builtin$negate = { CLOSURE, (Instance)(Closure){ NULL, builtin$negate$implementation } };
+
+{% for op in ['lt', 'gt', 'lte', 'gte', 'eq', 'neq'] %}
+Object builtin${{ op }}$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  {% if op == 'lt' %}
+  if(left.instance.integer < right.instance.integer)
+  {% elif op == 'gt' %}
+  if(left.instance.integer > right.instance.integer)
+  {% elif op == 'lte' %}
+  if(left.instance.integer <= right.instance.integer)
+  {% elif op == 'gte' %}
+  if(left.instance.integer >= right.instance.integer)
+  {% elif op == 'eq' %}
+  if(left.instance.integer == right.instance.integer)
+  {% elif op == 'neq' %}
+  if(left.instance.integer != right.instance.integer)
+  {% endif %}
+  {
+    return builtin$true;
+  }
+  else
+  {
+    return builtin$false;
+  }
+}
+Object builtin${{ op }} = { CLOSURE, (Instance)(Closure){ NULL, builtin${{ op }}$implementation } };
+{% endfor %}
 
-// TODO Make this conditionally added
-Object operator$concatenate(Stack* stack)
+Object builtin$concat$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
 {
+  assert(argc == 2);
+
   Object right = Stack_pop(stack);
   Object left = Stack_pop(stack);
 
@@ -575,44 +701,195 @@ Object operator$concatenate(Stack* stack)
   Object result = { STRING_CONCATENATION, (Instance)concatenation };
   return result;
 }
+Object builtin$concat = { CLOSURE, (Instance)(Closure){ NULL, builtin$concat$implementation } };
 
-{% for id in infix_declarations %}
-Object operator${{ id.name }}(Stack* stack)
+Object builtin$add$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
 {
+  assert(argc == 2);
+
   Object right = Stack_pop(stack);
   Object left = Stack_pop(stack);
 
-  assert(left.type == {{ id.in_type.upper() }});
-  assert(right.type == {{ id.in_type.upper() }});
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer + right.instance.integer)
+  };
 
-  Object result;
-  result.type = {{ id.out_type.upper() }};
-  result.instance.{{ id.out_type.lower() }} = left.instance.{{ id.in_type.lower() }} {{ id.operator }} right.instance.{{ id.in_type.lower() }};
   return result;
 }
-{% endfor %}
+Object builtin$add = { CLOSURE, (Instance)(Closure){ NULL, builtin$add$implementation } };
 
-{% if 'pow' in builtins %}
-Object builtin$pow$implementation(EnvironmentPool* environmentPool, Environment* parent, size_t argc, Stack* stack)
+Object builtin$subtract$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
 {
-  // Must unload items in reverse order
-  Object exponent = Stack_pop(stack);
-  Object base = Stack_pop(stack);
+  assert(argc == 2);
 
-  assert(base.type == INTEGER);
-  assert(exponent.type == INTEGER);
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer - right.instance.integer)
+  };
 
-  Object result;
-  result.type = INTEGER;
-  result.instance.integer = pow(base.instance.integer, exponent.instance.integer);
   return result;
 }
+Object builtin$subtract = { CLOSURE, (Instance)(Closure){ NULL, builtin$subtract$implementation } };
 
-Object builtin$pow = { CLOSURE, (Instance)(Closure){ NULL, builtin$pow$implementation } };
-{% endif %}
+Object builtin$multiply$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer * right.instance.integer)
+  };
+
+  return result;
+}
+Object builtin$multiply = { CLOSURE, (Instance)(Closure){ NULL, builtin$multiply$implementation } };
+
+Object builtin$integer_divide$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  if(right.instance.integer == 0)
+  {
+    fprintf(stderr, "DivisionByZeroError on line %zu\n", line);
+    longjmp(parentJump, 1);
+  }
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer / right.instance.integer)
+  };
+
+  return result;
+}
+Object builtin$integer_divide = { CLOSURE, (Instance)(Closure){ NULL, builtin$integer_divide$implementation } };
+
+Object builtin$modular_divide$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == INTEGER);
+  assert(right.type == INTEGER);
+
+  if(right.instance.integer == 0)
+  {
+    fprintf(stderr, "DivisionByZeroError on line %zu\n", line);
+    longjmp(parentJump, 1);
+  }
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer % right.instance.integer)
+  };
+
+  return result;
+}
+Object builtin$modular_divide = { CLOSURE, (Instance)(Closure){ NULL, builtin$modular_divide$implementation } };
+
+Object builtin$field$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  assert(left.type == STRUCTURE);
+  assert(right.type == STRING_LITERAL);
+
+  Object result = (Object){
+    INTEGER,
+    (Instance)(int32_t) (left.instance.integer % right.instance.integer)
+  };
+
+  return result;
+}
+Object builtin$field = { CLOSURE, (Instance)(Closure){ NULL, builtin$field$implementation } };
+
+Object builtin$get$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
+{
+  assert(argc == 2);
+
+  Object right = Stack_pop(stack);
+  Object left = Stack_pop(stack);
+
+  return List_get(&left, right);
+}
+Object builtin$get = { CLOSURE, (Instance)(Closure){ NULL, builtin$get$implementation } };
 
 {% if 'print' in builtins %}
-Object builtin$print$implementation(EnvironmentPool* environmentPool, Environment* parent, size_t argc, Stack* stack)
+Object builtin$print$implementation(
+  EnvironmentPool* environmentPool,
+  Environment* parent,
+  size_t argc,
+  Stack* stack,
+  const unsigned long line,
+  jmp_buf parentJump)
 {
   Stack reverse_stack;
   Stack_initialize(&reverse_stack);
@@ -642,9 +919,9 @@ Object builtin$print$implementation(EnvironmentPool* environmentPool, Environmen
 
       case STRING_CONCATENATION:
         Stack_push(stack, output.instance.string_concatenation->left);
-        builtin$print$implementation(NULL, NULL, 1, stack);
+        builtin$print$implementation(NULL, NULL, 1, stack, line, parentJump);
         Stack_push(stack, output.instance.string_concatenation->right);
-        builtin$print$implementation(NULL, NULL, 1, stack);
+        builtin$print$implementation(NULL, NULL, 1, stack, line, parentJump);
         break;
 
       case STRING_LITERAL:
@@ -682,11 +959,44 @@ int main(int argc, char** argv)
   Stack* stack = &stackMemory;
   Stack_initialize(stack);
 
+  jmp_buf jump;
+  if(setjmp(jump) != 0)
+  {
+    fprintf(stderr, "\tin __main__\n");
+
+    while(Stack_any(stack))
+    {
+      Object item = Stack_pop(stack);
+      Object_deinitialize(&item);
+    }
+    Environment_setLive(environment, false);
+    EnvironmentPool_destruct(environmentPool);
+
+    // TODO We would like to return something nonzero here, but that messes up Valgrind so we couldn't catch memory leaks
+    return 0;
+  }
+
   // TODO Use the symbol from SYMBOL_LIST
   {% for builtin in builtins %}
   Environment_set(environment, "{{ builtin }}", builtin${{ builtin }});
   {% endfor %}
 
+  Environment_set(environment, "true", builtin$true);
+  Environment_set(environment, "false", builtin$false);
+  Environment_set(environment, "__add__", builtin$add);
+  Environment_set(environment, "__subtract__", builtin$subtract);
+  Environment_set(environment, "__multiply__", builtin$multiply);
+  Environment_set(environment, "__integer_divide__", builtin$integer_divide);
+  Environment_set(environment, "__modular_divide__", builtin$modular_divide);
+  Environment_set(environment, "__negate__", builtin$negate);
+  Environment_set(environment, "__concat__", builtin$concat);
+  Environment_set(environment, "__field__", builtin$field);
+  Environment_set(environment, "__get__", builtin$get);
+
+  {% for op in ['lt', 'gt', 'lte', 'gte', 'eq', 'neq'] %}
+  Environment_set(environment, "__{{ op }}__", builtin${{ op }});
+  {% endfor %}
+
   {% for statement in statements %}
   {{ statement }}
   {% endfor %}