/*
- * Copyright (C) 2012
+ * Copyright (C) 2012, 2013
* Wolfgang Bumiller
+ * Dale Weiler
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
-#include <stdio.h>
#include <stdlib.h>
#include <string.h>
return NULL; \
} \
ast_node_init((ast_node*)self, ctx, TYPE_##T); \
- ( (ast_node*)self )->node.destroy = (ast_node_delete*)destroyfn
+ ( (ast_node*)self )->destroy = (ast_node_delete*)destroyfn
+/*
+ * forward declarations, these need not be in ast.h for obvious
+ * static reasons.
+ */
+static bool ast_member_codegen(ast_member*, ast_function*, bool lvalue, ir_value**);
+static void ast_array_index_delete(ast_array_index*);
+static bool ast_array_index_codegen(ast_array_index*, ast_function*, bool lvalue, ir_value**);
+static void ast_store_delete(ast_store*);
+static bool ast_store_codegen(ast_store*, ast_function*, bool lvalue, ir_value**);
+static void ast_ifthen_delete(ast_ifthen*);
+static bool ast_ifthen_codegen(ast_ifthen*, ast_function*, bool lvalue, ir_value**);
+static void ast_ternary_delete(ast_ternary*);
+static bool ast_ternary_codegen(ast_ternary*, ast_function*, bool lvalue, ir_value**);
+static void ast_loop_delete(ast_loop*);
+static bool ast_loop_codegen(ast_loop*, ast_function*, bool lvalue, ir_value**);
+static void ast_breakcont_delete(ast_breakcont*);
+static bool ast_breakcont_codegen(ast_breakcont*, ast_function*, bool lvalue, ir_value**);
+static void ast_switch_delete(ast_switch*);
+static bool ast_switch_codegen(ast_switch*, ast_function*, bool lvalue, ir_value**);
+static void ast_label_delete(ast_label*);
+static void ast_label_register_goto(ast_label*, ast_goto*);
+static bool ast_label_codegen(ast_label*, ast_function*, bool lvalue, ir_value**);
+static bool ast_goto_codegen(ast_goto*, ast_function*, bool lvalue, ir_value**);
+static void ast_goto_delete(ast_goto*);
+static void ast_call_delete(ast_call*);
+static bool ast_call_codegen(ast_call*, ast_function*, bool lvalue, ir_value**);
+static bool ast_block_codegen(ast_block*, ast_function*, bool lvalue, ir_value**);
+static void ast_unary_delete(ast_unary*);
+static bool ast_unary_codegen(ast_unary*, ast_function*, bool lvalue, ir_value**);
+static void ast_entfield_delete(ast_entfield*);
+static bool ast_entfield_codegen(ast_entfield*, ast_function*, bool lvalue, ir_value**);
+static void ast_return_delete(ast_return*);
+static bool ast_return_codegen(ast_return*, ast_function*, bool lvalue, ir_value**);
+static void ast_binstore_delete(ast_binstore*);
+static bool ast_binstore_codegen(ast_binstore*, ast_function*, bool lvalue, ir_value**);
+static void ast_binary_delete(ast_binary*);
+static bool ast_binary_codegen(ast_binary*, ast_function*, bool lvalue, ir_value**);
/* It must not be possible to get here. */
static GMQCC_NORETURN void _ast_node_destroy(ast_node *self)
{
(void)self;
con_err("ast node missing destroy()\n");
- abort();
+ exit(EXIT_FAILURE);
}
/* Initialize main ast node aprts */
static void ast_node_init(ast_node *self, lex_ctx ctx, int nodetype)
{
- self->node.context = ctx;
- self->node.destroy = &_ast_node_destroy;
- self->node.keep = false;
- self->node.nodetype = nodetype;
- self->node.side_effects = false;
+ self->context = ctx;
+ self->destroy = &_ast_node_destroy;
+ self->keep = false;
+ self->nodetype = nodetype;
+ self->side_effects = false;
}
/* weight and side effects */
static void ast_expression_init(ast_expression *self,
ast_expression_codegen *codegen)
{
- self->expression.codegen = codegen;
- self->expression.vtype = TYPE_VOID;
- self->expression.next = NULL;
- self->expression.outl = NULL;
- self->expression.outr = NULL;
- self->expression.variadic = false;
- self->expression.params = NULL;
- self->expression.count = 0;
+ self->codegen = codegen;
+ self->vtype = TYPE_VOID;
+ self->next = NULL;
+ self->outl = NULL;
+ self->outr = NULL;
+ self->params = NULL;
+ self->count = 0;
+ self->flags = 0;
+ self->varparam = NULL;
}
static void ast_expression_delete(ast_expression *self)
{
size_t i;
- if (self->expression.next)
- ast_delete(self->expression.next);
- for (i = 0; i < vec_size(self->expression.params); ++i) {
- ast_delete(self->expression.params[i]);
+ if (self->next)
+ ast_delete(self->next);
+ for (i = 0; i < vec_size(self->params); ++i) {
+ ast_delete(self->params[i]);
}
- vec_free(self->expression.params);
+ vec_free(self->params);
+ if (self->varparam)
+ ast_delete(self->varparam);
}
static void ast_expression_delete_full(ast_expression *self)
ast_value* ast_value_copy(const ast_value *self)
{
size_t i;
- const ast_expression_common *fromex;
- ast_expression_common *selfex;
+ const ast_expression *fromex;
+ ast_expression *selfex;
ast_value *cp = ast_value_new(self->expression.node.context, self->name, self->expression.vtype);
if (self->expression.next) {
cp->expression.next = ast_type_copy(self->expression.node.context, self->expression.next);
- if (!cp->expression.next) {
- ast_value_delete(cp);
- return NULL;
- }
}
fromex = &self->expression;
selfex = &cp->expression;
- selfex->variadic = fromex->variadic;
selfex->count = fromex->count;
+ selfex->flags = fromex->flags;
for (i = 0; i < vec_size(fromex->params); ++i) {
ast_value *v = ast_value_copy(fromex->params[i]);
- if (!v) {
- ast_value_delete(cp);
- return NULL;
- }
vec_push(selfex->params, v);
}
return cp;
}
-bool ast_type_adopt_impl(ast_expression *self, const ast_expression *other)
+void ast_type_adopt_impl(ast_expression *self, const ast_expression *other)
{
size_t i;
- const ast_expression_common *fromex;
- ast_expression_common *selfex;
- self->expression.vtype = other->expression.vtype;
- if (other->expression.next) {
- self->expression.next = (ast_expression*)ast_type_copy(ast_ctx(self), other->expression.next);
- if (!self->expression.next)
- return false;
- }
- fromex = &other->expression;
- selfex = &self->expression;
- selfex->variadic = fromex->variadic;
+ const ast_expression *fromex;
+ ast_expression *selfex;
+ self->vtype = other->vtype;
+ if (other->next) {
+ self->next = (ast_expression*)ast_type_copy(ast_ctx(self), other->next);
+ }
+ fromex = other;
+ selfex = self;
selfex->count = fromex->count;
+ selfex->flags = fromex->flags;
for (i = 0; i < vec_size(fromex->params); ++i) {
ast_value *v = ast_value_copy(fromex->params[i]);
- if (!v)
- return false;
vec_push(selfex->params, v);
}
- return true;
}
static ast_expression* ast_shallow_type(lex_ctx ctx, int vtype)
{
ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
ast_expression_init(self, NULL);
- self->expression.codegen = NULL;
- self->expression.next = NULL;
- self->expression.vtype = vtype;
+ self->codegen = NULL;
+ self->next = NULL;
+ self->vtype = vtype;
return self;
}
ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex)
{
size_t i;
- const ast_expression_common *fromex;
- ast_expression_common *selfex;
+ const ast_expression *fromex;
+ ast_expression *selfex;
if (!ex)
return NULL;
ast_instantiate(ast_expression, ctx, ast_expression_delete_full);
ast_expression_init(self, NULL);
- fromex = &ex->expression;
- selfex = &self->expression;
+ fromex = ex;
+ selfex = self;
/* This may never be codegen()d */
selfex->codegen = NULL;
selfex->vtype = fromex->vtype;
if (fromex->next)
- {
selfex->next = ast_type_copy(ctx, fromex->next);
- if (!selfex->next) {
- ast_expression_delete_full(self);
- return NULL;
- }
- }
else
selfex->next = NULL;
- selfex->variadic = fromex->variadic;
selfex->count = fromex->count;
+ selfex->flags = fromex->flags;
for (i = 0; i < vec_size(fromex->params); ++i) {
ast_value *v = ast_value_copy(fromex->params[i]);
- if (!v) {
- ast_expression_delete_full(self);
- return NULL;
- }
vec_push(selfex->params, v);
}
bool ast_compare_type(ast_expression *a, ast_expression *b)
{
- if (a->expression.vtype != b->expression.vtype)
+ if (a->vtype == TYPE_NIL ||
+ b->vtype == TYPE_NIL)
+ return true;
+ if (a->vtype != b->vtype)
return false;
- if (!a->expression.next != !b->expression.next)
+ if (!a->next != !b->next)
return false;
- if (vec_size(a->expression.params) != vec_size(b->expression.params))
+ if (vec_size(a->params) != vec_size(b->params))
return false;
- if (a->expression.variadic != b->expression.variadic)
+ if ((a->flags & AST_FLAG_TYPE_MASK) !=
+ (b->flags & AST_FLAG_TYPE_MASK) )
+ {
return false;
- if (vec_size(a->expression.params)) {
+ }
+ if (vec_size(a->params)) {
size_t i;
- for (i = 0; i < vec_size(a->expression.params); ++i) {
- if (!ast_compare_type((ast_expression*)a->expression.params[i],
- (ast_expression*)b->expression.params[i]))
+ for (i = 0; i < vec_size(a->params); ++i) {
+ if (!ast_compare_type((ast_expression*)a->params[i],
+ (ast_expression*)b->params[i]))
return false;
}
}
- if (a->expression.next)
- return ast_compare_type(a->expression.next, b->expression.next);
+ if (a->next)
+ return ast_compare_type(a->next, b->next);
return true;
}
if (!e) {
if (pos + 6 >= bufsize)
goto full;
- strcpy(buf + pos, "(null)");
+ util_strncpy(buf + pos, "(null)", 6);
return pos + 6;
}
if (pos + 1 >= bufsize)
goto full;
- switch (e->expression.vtype) {
+ switch (e->vtype) {
case TYPE_VARIANT:
- strcpy(buf + pos, "(variant)");
+ util_strncpy(buf + pos, "(variant)", 9);
return pos + 9;
case TYPE_FIELD:
buf[pos++] = '.';
- return ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+ return ast_type_to_string_impl(e->next, buf, bufsize, pos);
case TYPE_POINTER:
if (pos + 3 >= bufsize)
goto full;
buf[pos++] = '*';
buf[pos++] = '(';
- pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+ pos = ast_type_to_string_impl(e->next, buf, bufsize, pos);
if (pos + 1 >= bufsize)
goto full;
buf[pos++] = ')';
return pos;
case TYPE_FUNCTION:
- pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+ pos = ast_type_to_string_impl(e->next, buf, bufsize, pos);
if (pos + 2 >= bufsize)
goto full;
- if (!vec_size(e->expression.params)) {
+ if (!vec_size(e->params)) {
buf[pos++] = '(';
buf[pos++] = ')';
return pos;
}
buf[pos++] = '(';
- pos = ast_type_to_string_impl((ast_expression*)(e->expression.params[0]), buf, bufsize, pos);
- for (i = 1; i < vec_size(e->expression.params); ++i) {
+ pos = ast_type_to_string_impl((ast_expression*)(e->params[0]), buf, bufsize, pos);
+ for (i = 1; i < vec_size(e->params); ++i) {
if (pos + 2 >= bufsize)
goto full;
buf[pos++] = ',';
buf[pos++] = ' ';
- pos = ast_type_to_string_impl((ast_expression*)(e->expression.params[i]), buf, bufsize, pos);
+ pos = ast_type_to_string_impl((ast_expression*)(e->params[i]), buf, bufsize, pos);
}
if (pos + 1 >= bufsize)
goto full;
return pos;
case TYPE_ARRAY:
- pos = ast_type_to_string_impl(e->expression.next, buf, bufsize, pos);
+ pos = ast_type_to_string_impl(e->next, buf, bufsize, pos);
if (pos + 1 >= bufsize)
goto full;
buf[pos++] = '[';
- pos += snprintf(buf + pos, bufsize - pos - 1, "%i", (int)e->expression.count);
+ pos += util_snprintf(buf + pos, bufsize - pos - 1, "%i", (int)e->count);
if (pos + 1 >= bufsize)
goto full;
buf[pos++] = ']';
return pos;
default:
- typestr = type_name[e->expression.vtype];
+ typestr = type_name[e->vtype];
typelen = strlen(typestr);
if (pos + typelen >= bufsize)
goto full;
- strcpy(buf + pos, typestr);
+ util_strncpy(buf + pos, typestr, typelen);
return pos + typelen;
}
buf[pos] = 0;
}
+static bool ast_value_codegen(ast_value *self, ast_function *func, bool lvalue, ir_value **out);
ast_value* ast_value_new(lex_ctx ctx, const char *name, int t)
{
ast_instantiate(ast_value, ctx, ast_value_delete);
self->isfield = false;
self->cvq = CV_NONE;
self->hasvalue = false;
- self->uses = 0;
+ self->isimm = false;
+ self->uses = 0;
memset(&self->constval, 0, sizeof(self->constval));
+ self->initlist = NULL;
self->ir_v = NULL;
self->ir_values = NULL;
self->setter = NULL;
self->getter = NULL;
+ self->desc = NULL;
+
+ self->argcounter = NULL;
return self;
}
{
if (self->name)
mem_d((void*)self->name);
+ if (self->argcounter)
+ mem_d((void*)self->argcounter);
if (self->hasvalue) {
switch (self->expression.vtype)
{
}
if (self->ir_values)
mem_d(self->ir_values);
+
+ if (self->desc)
+ mem_d(self->desc);
+
+ if (self->initlist) {
+ if (self->expression.next->vtype == TYPE_STRING) {
+ /* strings are allocated, free them */
+ size_t i, len = vec_size(self->initlist);
+ /* in theory, len should be expression.count
+ * but let's not take any chances */
+ for (i = 0; i < len; ++i) {
+ if (self->initlist[i].vstring)
+ mem_d(self->initlist[i].vstring);
+ }
+ }
+ vec_free(self->initlist);
+ }
+
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
else if (op == INSTR_MUL_V)
self->expression.vtype = TYPE_FLOAT;
else
- self->expression.vtype = left->expression.vtype;
+ self->expression.vtype = left->vtype;
+
+ /* references all */
+ self->refs = AST_REF_ALL;
return self;
}
void ast_binary_delete(ast_binary *self)
{
- ast_unref(self->left);
- ast_unref(self->right);
+ if (self->refs & AST_REF_LEFT) ast_unref(self->left);
+ if (self->refs & AST_REF_RIGHT) ast_unref(self->right);
+
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
self->keep_dest = false;
- if (!ast_type_adopt(self, left)) {
- ast_delete(self);
- return NULL;
- }
-
+ ast_type_adopt(self, left);
return self;
}
void ast_unary_delete(ast_unary *self)
{
- ast_unref(self->operand);
+ if (self->operand) ast_unref(self->operand);
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
ast_entfield* ast_entfield_new(lex_ctx ctx, ast_expression *entity, ast_expression *field)
{
- if (field->expression.vtype != TYPE_FIELD) {
+ if (field->vtype != TYPE_FIELD) {
compile_error(ctx, "ast_entfield_new with expression not of type field");
return NULL;
}
- return ast_entfield_new_force(ctx, entity, field, field->expression.next);
+ return ast_entfield_new_force(ctx, entity, field, field->next);
}
ast_entfield* ast_entfield_new_force(lex_ctx ctx, ast_expression *entity, ast_expression *field, const ast_expression *outtype)
ast_propagate_effects(self, entity);
ast_propagate_effects(self, field);
- if (!ast_type_adopt(self, outtype)) {
- ast_entfield_delete(self);
- return NULL;
- }
-
+ ast_type_adopt(self, outtype);
return self;
}
return NULL;
}
- if (owner->expression.vtype != TYPE_VECTOR &&
- owner->expression.vtype != TYPE_FIELD) {
- compile_error(ctx, "member-access on an invalid owner of type %s", type_name[owner->expression.vtype]);
+ if (owner->vtype != TYPE_VECTOR &&
+ owner->vtype != TYPE_FIELD) {
+ compile_error(ctx, "member-access on an invalid owner of type %s", type_name[owner->vtype]);
mem_d(self);
return NULL;
}
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_member_codegen);
self->expression.node.keep = true; /* keep */
- if (owner->expression.vtype == TYPE_VECTOR) {
+ if (owner->vtype == TYPE_VECTOR) {
self->expression.vtype = TYPE_FLOAT;
self->expression.next = NULL;
} else {
self->expression.next = ast_shallow_type(ctx, TYPE_FLOAT);
}
- self->owner = owner;
+ self->rvalue = false;
+ self->owner = owner;
ast_propagate_effects(self, owner);
self->field = field;
* purpose that is not garbage-collected.
*/
ast_expression_delete((ast_expression*)self);
+ mem_d(self->name);
mem_d(self);
}
+bool ast_member_set_name(ast_member *self, const char *name)
+{
+ if (self->name)
+ mem_d((void*)self->name);
+ self->name = util_strdup(name);
+ return !!self->name;
+}
+
ast_array_index* ast_array_index_new(lex_ctx ctx, ast_expression *array, ast_expression *index)
{
ast_expression *outtype;
ast_instantiate(ast_array_index, ctx, ast_array_index_delete);
- outtype = array->expression.next;
+ outtype = array->next;
if (!outtype) {
mem_d(self);
/* Error: field has no type... */
ast_propagate_effects(self, array);
ast_propagate_effects(self, index);
- if (!ast_type_adopt(self, outtype)) {
- ast_array_index_delete(self);
- return NULL;
- }
- if (array->expression.vtype == TYPE_FIELD && outtype->expression.vtype == TYPE_ARRAY) {
+ ast_type_adopt(self, outtype);
+ if (array->vtype == TYPE_FIELD && outtype->vtype == TYPE_ARRAY) {
if (self->expression.vtype != TYPE_ARRAY) {
compile_error(ast_ctx(self), "array_index node on type");
ast_array_index_delete(self);
void ast_array_index_delete(ast_array_index *self)
{
- ast_unref(self->array);
- ast_unref(self->index);
+ if (self->array)
+ ast_unref(self->array);
+ if (self->index)
+ ast_unref(self->index);
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
ast_ternary* ast_ternary_new(lex_ctx ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse)
{
+ ast_expression *exprtype = ontrue;
ast_instantiate(ast_ternary, ctx, ast_ternary_delete);
/* This time NEITHER must be NULL */
if (!ontrue || !onfalse) {
ast_propagate_effects(self, ontrue);
ast_propagate_effects(self, onfalse);
- if (!ast_type_adopt(self, ontrue)) {
- ast_ternary_delete(self);
- return NULL;
- }
+ if (ontrue->vtype == TYPE_NIL)
+ exprtype = onfalse;
+ ast_type_adopt(self, exprtype);
return self;
}
void ast_ternary_delete(ast_ternary *self)
{
- ast_unref(self->cond);
- ast_unref(self->on_true);
- ast_unref(self->on_false);
+ /* the if()s are only there because computed-gotos can set them
+ * to NULL
+ */
+ if (self->cond) ast_unref(self->cond);
+ if (self->on_true) ast_unref(self->on_true);
+ if (self->on_false) ast_unref(self->on_false);
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
ast_loop* ast_loop_new(lex_ctx ctx,
ast_expression *initexpr,
- ast_expression *precond,
- ast_expression *postcond,
+ ast_expression *precond, bool pre_not,
+ ast_expression *postcond, bool post_not,
ast_expression *increment,
ast_expression *body)
{
self->increment = increment;
self->body = body;
+ self->pre_not = pre_not;
+ self->post_not = post_not;
+
if (initexpr)
ast_propagate_effects(self, initexpr);
if (precond)
mem_d(self);
}
-ast_breakcont* ast_breakcont_new(lex_ctx ctx, bool iscont)
+ast_breakcont* ast_breakcont_new(lex_ctx ctx, bool iscont, unsigned int levels)
{
ast_instantiate(ast_breakcont, ctx, ast_breakcont_delete);
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_breakcont_codegen);
self->is_continue = iscont;
+ self->levels = levels;
return self;
}
mem_d(self);
}
-ast_label* ast_label_new(lex_ctx ctx, const char *name)
+ast_label* ast_label_new(lex_ctx ctx, const char *name, bool undefined)
{
ast_instantiate(ast_label, ctx, ast_label_delete);
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_label_codegen);
- self->name = util_strdup(name);
- self->irblock = NULL;
- self->gotos = NULL;
+ self->expression.vtype = TYPE_NOEXPR;
+
+ self->name = util_strdup(name);
+ self->irblock = NULL;
+ self->gotos = NULL;
+ self->undefined = undefined;
return self;
}
mem_d(self);
}
-void ast_label_register_goto(ast_label *self, ast_goto *g)
+static void ast_label_register_goto(ast_label *self, ast_goto *g)
{
vec_push(self->gotos, g);
}
ast_expression *funcexpr)
{
ast_instantiate(ast_call, ctx, ast_call_delete);
+ if (!funcexpr->next) {
+ compile_error(ctx, "not a function");
+ mem_d(self);
+ return NULL;
+ }
ast_expression_init((ast_expression*)self, (ast_expression_codegen*)&ast_call_codegen);
ast_side_effects(self) = true;
- self->params = NULL;
- self->func = funcexpr;
+ self->params = NULL;
+ self->func = funcexpr;
+ self->va_count = NULL;
- ast_type_adopt(self, funcexpr->expression.next);
+ ast_type_adopt(self, funcexpr->next);
return self;
}
if (self->func)
ast_unref(self->func);
+ if (self->va_count)
+ ast_unref(self->va_count);
+
ast_expression_delete((ast_expression*)self);
mem_d(self);
}
bool ast_call_check_types(ast_call *self)
{
+ char texp[1024];
+ char tgot[1024];
size_t i;
bool retval = true;
const ast_expression *func = self->func;
size_t count = vec_size(self->params);
- if (count > vec_size(func->expression.params))
- count = vec_size(func->expression.params);
+ if (count > vec_size(func->params))
+ count = vec_size(func->params);
for (i = 0; i < count; ++i) {
- if (!ast_compare_type(self->params[i], (ast_expression*)(func->expression.params[i]))) {
- char texp[1024];
- char tgot[1024];
+ if (!ast_compare_type(self->params[i], (ast_expression*)(func->params[i])))
+ {
ast_type_to_string(self->params[i], tgot, sizeof(tgot));
- ast_type_to_string((ast_expression*)func->expression.params[i], texp, sizeof(texp));
+ ast_type_to_string((ast_expression*)func->params[i], texp, sizeof(texp));
compile_error(ast_ctx(self), "invalid type for parameter %u in function call: expected %s, got %s",
(unsigned int)(i+1), texp, tgot);
/* we don't immediately return */
retval = false;
}
}
+ count = vec_size(self->params);
+ if (count > vec_size(func->params) && func->varparam) {
+ for (; i < count; ++i) {
+ if (!ast_compare_type(self->params[i], func->varparam))
+ {
+ ast_type_to_string(self->params[i], tgot, sizeof(tgot));
+ ast_type_to_string(func->varparam, texp, sizeof(texp));
+ compile_error(ast_ctx(self), "invalid type for parameter %u in function call: expected %s, got %s",
+ (unsigned int)(i+1), texp, tgot);
+ /* we don't immediately return */
+ retval = false;
+ }
+ }
+ }
return retval;
}
self->dest = dest;
self->source = source;
- if (!ast_type_adopt(self, dest)) {
- ast_delete(self);
- return NULL;
- }
+ ast_type_adopt(self, dest);
return self;
}
ast_delete(self->expression.next);
self->expression.next = NULL;
}
- if (!ast_type_adopt(self, e)) {
- compile_error(ast_ctx(self), "internal error: failed to adopt type");
- return false;
- }
+ ast_type_adopt(self, e);
return true;
}
void ast_block_collect(ast_block *self, ast_expression *expr)
{
vec_push(self->collect, expr);
- expr->expression.node.keep = true;
+ expr->node.keep = true;
}
void ast_block_delete(ast_block *self)
mem_d(self);
}
-bool ast_block_set_type(ast_block *self, ast_expression *from)
+void ast_block_set_type(ast_block *self, ast_expression *from)
{
if (self->expression.next)
ast_delete(self->expression.next);
- if (!ast_type_adopt(self, from))
- return false;
- return true;
+ ast_type_adopt(self, from);
}
ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype)
self->ir_func = NULL;
self->curblock = NULL;
- self->breakblock = NULL;
- self->continueblock = NULL;
+ self->breakblocks = NULL;
+ self->continueblocks = NULL;
vtype->hasvalue = true;
vtype->constval.vfunc = self;
+ self->varargs = NULL;
+ self->argc = NULL;
+ self->fixedparams = NULL;
+ self->return_value = NULL;
+
return self;
}
for (i = 0; i < vec_size(self->blocks); ++i)
ast_delete(self->blocks[i]);
vec_free(self->blocks);
+ vec_free(self->breakblocks);
+ vec_free(self->continueblocks);
+ if (self->varargs)
+ ast_delete(self->varargs);
+ if (self->argc)
+ ast_delete(self->argc);
+ if (self->fixedparams)
+ ast_unref(self->fixedparams);
+ if (self->return_value)
+ ast_unref(self->return_value);
mem_d(self);
}
-const char* ast_function_label(ast_function *self, const char *prefix)
+static const char* ast_function_label(ast_function *self, const char *prefix)
{
size_t id;
size_t len;
char *from;
- if (!opts.dump && !opts.dumpfin)
+ if (!OPTS_OPTION_BOOL(OPTION_DUMP) &&
+ !OPTS_OPTION_BOOL(OPTION_DUMPFIN) &&
+ !OPTS_OPTION_BOOL(OPTION_DEBUG))
+ {
return NULL;
+ }
id = (self->labelcount++);
len = strlen(prefix);
from = self->labelbuf + sizeof(self->labelbuf)-1;
*from-- = 0;
do {
- unsigned int digit = id % 10;
- *from = digit + '0';
+ *from-- = (id%10) + '0';
id /= 10;
} while (id);
+ ++from;
memcpy(from - len, prefix, len);
return from - len;
}
* But I can't imagine a pituation where the output is truly unnecessary.
*/
-void _ast_codegen_output_type(ast_expression_common *self, ir_value *out)
+static void _ast_codegen_output_type(ast_expression *self, ir_value *out)
{
if (out->vtype == TYPE_FIELD)
- out->fieldtype = self->next->expression.vtype;
+ out->fieldtype = self->next->vtype;
if (out->vtype == TYPE_FUNCTION)
- out->outtype = self->next->expression.vtype;
+ out->outtype = self->next->vtype;
}
#define codegen_output_type(a,o) (_ast_codegen_output_type(&((a)->expression),(o)))
-#define codegen_output_type_expr(a,o) (_ast_codegen_output_type(a,(o)))
bool ast_value_codegen(ast_value *self, ast_function *func, bool lvalue, ir_value **out)
{
(void)func;
(void)lvalue;
+ if (self->expression.vtype == TYPE_NIL) {
+ *out = func->ir_func->owner->nil;
+ return true;
+ }
/* NOTE: This is the codegen for a variable used in an expression.
* It is not the codegen to generate the value. For this purpose,
* ast_local_codegen and ast_global_codegen are to be used before this
* on all the globals.
*/
if (!self->ir_v) {
- char typename[1024];
- ast_type_to_string((ast_expression*)self, typename, sizeof(typename));
- compile_error(ast_ctx(self), "ast_value used before generated %s %s", typename, self->name);
+ char tname[1024]; /* typename is reserved in C++ */
+ ast_type_to_string((ast_expression*)self, tname, sizeof(tname));
+ compile_error(ast_ctx(self), "ast_value used before generated %s %s", tname, self->name);
return false;
}
*out = self->ir_v;
{
ir_value *v = NULL;
+ if (self->expression.vtype == TYPE_NIL) {
+ compile_error(ast_ctx(self), "internal error: trying to generate a variable of TYPE_NIL");
+ return false;
+ }
+
if (self->hasvalue && self->expression.vtype == TYPE_FUNCTION)
{
- ir_function *func = ir_builder_create_function(ir, self->name, self->expression.next->expression.vtype);
+ ir_function *func = ir_builder_create_function(ir, self->name, self->expression.next->vtype);
if (!func)
return false;
func->context = ast_ctx(self);
self->constval.vfunc->ir_func = func;
self->ir_v = func->value;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
/* The function is filled later on ast_function_codegen... */
return true;
}
goto error;
}
- if (fieldtype->expression.vtype == TYPE_ARRAY) {
+ if (fieldtype->vtype == TYPE_ARRAY) {
size_t ai;
char *name;
size_t namelen;
- ast_expression_common *elemtype;
- int vtype;
- ast_value *array = (ast_value*)fieldtype;
+ ast_expression *elemtype;
+ int vtype;
+ ast_value *array = (ast_value*)fieldtype;
if (!ast_istype(fieldtype, ast_value)) {
compile_error(ast_ctx(self), "internal error: ast_value required");
}
/* we are lame now - considering the way QC works we won't tolerate arrays > 1024 elements */
- if (!array->expression.count || array->expression.count > opts.max_array_size)
+ if (!array->expression.count || array->expression.count > OPTS_OPTION_U32(OPTION_MAX_ARRAY_SIZE))
compile_error(ast_ctx(self), "Invalid array of size %lu", (unsigned long)array->expression.count);
- elemtype = &array->expression.next->expression;
+ elemtype = array->expression.next;
vtype = elemtype->vtype;
v = ir_builder_create_field(ir, self->name, vtype);
}
v->context = ast_ctx(self);
v->unique_life = true;
+ v->locked = true;
array->ir_v = self->ir_v = v;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
namelen = strlen(self->name);
name = (char*)mem_a(namelen + 16);
- strcpy(name, self->name);
+ util_strncpy(name, self->name, namelen);
array->ir_values = (ir_value**)mem_a(sizeof(array->ir_values[0]) * array->expression.count);
array->ir_values[0] = v;
for (ai = 1; ai < array->expression.count; ++ai) {
- snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+ util_snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
array->ir_values[ai] = ir_builder_create_field(ir, name, vtype);
if (!array->ir_values[ai]) {
mem_d(name);
}
array->ir_values[ai]->context = ast_ctx(self);
array->ir_values[ai]->unique_life = true;
+ array->ir_values[ai]->locked = true;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_values[ai]->flags |= IR_FLAG_INCLUDE_DEF;
}
mem_d(name);
}
else
{
- v = ir_builder_create_field(ir, self->name, self->expression.next->expression.vtype);
+ v = ir_builder_create_field(ir, self->name, self->expression.next->vtype);
if (!v)
return false;
v->context = ast_ctx(self);
self->ir_v = v;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
}
return true;
}
char *name;
size_t namelen;
- ast_expression_common *elemtype = &self->expression.next->expression;
+ ast_expression *elemtype = self->expression.next;
int vtype = elemtype->vtype;
/* same as with field arrays */
- if (!self->expression.count || self->expression.count > opts.max_array_size)
+ if (!self->expression.count || self->expression.count > OPTS_OPTION_U32(OPTION_MAX_ARRAY_SIZE))
compile_error(ast_ctx(self), "Invalid array of size %lu", (unsigned long)self->expression.count);
v = ir_builder_create_global(ir, self->name, vtype);
}
v->context = ast_ctx(self);
v->unique_life = true;
+ v->locked = true;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ v->flags |= IR_FLAG_INCLUDE_DEF;
namelen = strlen(self->name);
name = (char*)mem_a(namelen + 16);
- strcpy(name, self->name);
+ util_strncpy(name, self->name, namelen);
self->ir_values = (ir_value**)mem_a(sizeof(self->ir_values[0]) * self->expression.count);
self->ir_values[0] = v;
for (ai = 1; ai < self->expression.count; ++ai) {
- snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+ util_snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
self->ir_values[ai] = ir_builder_create_global(ir, name, vtype);
if (!self->ir_values[ai]) {
mem_d(name);
}
self->ir_values[ai]->context = ast_ctx(self);
self->ir_values[ai]->unique_life = true;
+ self->ir_values[ai]->locked = true;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_values[ai]->flags |= IR_FLAG_INCLUDE_DEF;
}
mem_d(name);
}
/* link us to the ir_value */
v->cvq = self->cvq;
self->ir_v = v;
+ if (self->expression.flags & AST_FLAG_INCLUDE_DEF)
+ self->ir_v->flags |= IR_FLAG_INCLUDE_DEF;
return true;
error: /* clean up */
return false;
}
-bool ast_local_codegen(ast_value *self, ir_function *func, bool param)
+static bool ast_local_codegen(ast_value *self, ir_function *func, bool param)
{
ir_value *v = NULL;
+
+ if (self->expression.vtype == TYPE_NIL) {
+ compile_error(ast_ctx(self), "internal error: trying to generate a variable of TYPE_NIL");
+ return false;
+ }
+
if (self->hasvalue && self->expression.vtype == TYPE_FUNCTION)
{
/* Do we allow local functions? I think not...
char *name;
size_t namelen;
- ast_expression_common *elemtype = &self->expression.next->expression;
+ ast_expression *elemtype = self->expression.next;
int vtype = elemtype->vtype;
- if (param) {
+ func->flags |= IR_FLAG_HAS_ARRAYS;
+
+ if (param && !(self->expression.flags & AST_FLAG_IS_VARARG)) {
compile_error(ast_ctx(self), "array-parameters are not supported");
return false;
}
/* we are lame now - considering the way QC works we won't tolerate arrays > 1024 elements */
- if (!self->expression.count || self->expression.count > opts.max_array_size) {
+ if (!self->expression.count || self->expression.count > OPTS_OPTION_U32(OPTION_MAX_ARRAY_SIZE)) {
compile_error(ast_ctx(self), "Invalid array of size %lu", (unsigned long)self->expression.count);
}
v = ir_function_create_local(func, self->name, vtype, param);
if (!v) {
- compile_error(ast_ctx(self), "ir_function_create_local failed");
+ compile_error(ast_ctx(self), "internal error: ir_function_create_local failed");
return false;
}
v->context = ast_ctx(self);
v->unique_life = true;
+ v->locked = true;
namelen = strlen(self->name);
name = (char*)mem_a(namelen + 16);
- strcpy(name, self->name);
+ util_strncpy(name, self->name, namelen);
self->ir_values[0] = v;
for (ai = 1; ai < self->expression.count; ++ai) {
- snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
+ util_snprintf(name + namelen, 16, "[%u]", (unsigned int)ai);
self->ir_values[ai] = ir_function_create_local(func, name, vtype, param);
if (!self->ir_values[ai]) {
- compile_error(ast_ctx(self), "ir_builder_create_global failed on `%s`", name);
+ compile_error(ast_ctx(self), "internal_error: ir_builder_create_global failed on `%s`", name);
return false;
}
self->ir_values[ai]->context = ast_ctx(self);
self->ir_values[ai]->unique_life = true;
+ self->ir_values[ai]->locked = true;
}
+ mem_d(name);
}
else
{
{
ir_function *irf;
ir_value *dummy;
- ast_expression_common *ec;
+ ast_expression *ec;
+ ast_expression_codegen *cgen;
size_t i;
(void)ir;
irf = self->ir_func;
if (!irf) {
- compile_error(ast_ctx(self), "ast_function's related ast_value was not generated yet");
+ compile_error(ast_ctx(self), "internal error: ast_function's related ast_value was not generated yet");
return false;
}
for (i = 0; i < vec_size(ec->params); ++i)
{
if (ec->params[i]->expression.vtype == TYPE_FIELD)
- vec_push(irf->params, ec->params[i]->expression.next->expression.vtype);
+ vec_push(irf->params, ec->params[i]->expression.next->vtype);
else
vec_push(irf->params, ec->params[i]->expression.vtype);
if (!self->builtin) {
}
}
+ if (self->varargs) {
+ if (!ast_local_codegen(self->varargs, self->ir_func, true))
+ return false;
+ irf->max_varargs = self->varargs->expression.count;
+ }
+
if (self->builtin) {
irf->builtin = self->builtin;
return true;
}
+ /* have a local return value variable? */
+ if (self->return_value) {
+ if (!ast_local_codegen(self->return_value, self->ir_func, false))
+ return false;
+ }
+
if (!vec_size(self->blocks)) {
compile_error(ast_ctx(self), "function `%s` has no body", self->name);
return false;
}
- self->curblock = ir_function_create_block(ast_ctx(self), irf, "entry");
+ irf->first = self->curblock = ir_function_create_block(ast_ctx(self), irf, "entry");
if (!self->curblock) {
compile_error(ast_ctx(self), "failed to allocate entry block for `%s`", self->name);
return false;
}
+ if (self->argc) {
+ ir_value *va_count;
+ ir_value *fixed;
+ ir_value *sub;
+ if (!ast_local_codegen(self->argc, self->ir_func, true))
+ return false;
+ cgen = self->argc->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->argc), self, false, &va_count))
+ return false;
+ cgen = self->fixedparams->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->fixedparams), self, false, &fixed))
+ return false;
+ sub = ir_block_create_binop(self->curblock, ast_ctx(self),
+ ast_function_label(self, "va_count"), INSTR_SUB_F,
+ ir_builder_get_va_count(ir), fixed);
+ if (!sub)
+ return false;
+ if (!ir_block_create_store_op(self->curblock, ast_ctx(self), INSTR_STORE_F,
+ va_count, sub))
+ {
+ return false;
+ }
+ }
+
for (i = 0; i < vec_size(self->blocks); ++i) {
- ast_expression_codegen *gen = self->blocks[i]->expression.codegen;
- if (!(*gen)((ast_expression*)self->blocks[i], self, false, &dummy))
+ cgen = self->blocks[i]->expression.codegen;
+ if (!(*cgen)((ast_expression*)self->blocks[i], self, false, &dummy))
return false;
}
/* TODO: check return types */
- if (!self->curblock->is_return)
+ if (!self->curblock->final)
{
if (!self->vtype->expression.next ||
- self->vtype->expression.next->expression.vtype == TYPE_VOID)
+ self->vtype->expression.next->vtype == TYPE_VOID)
{
return ir_block_create_return(self->curblock, ast_ctx(self), NULL);
}
- else if (vec_size(self->curblock->entries))
+ else if (vec_size(self->curblock->entries) || self->curblock == irf->first)
{
- /* error("missing return"); */
- if (compile_warning(ast_ctx(self), WARN_MISSING_RETURN_VALUES,
+ if (self->return_value) {
+ cgen = self->return_value->expression.codegen;
+ if (!(*cgen)((ast_expression*)(self->return_value), self, false, &dummy))
+ return false;
+ return ir_block_create_return(self->curblock, ast_ctx(self), dummy);
+ }
+ else if (compile_warning(ast_ctx(self), WARN_MISSING_RETURN_VALUES,
"control reaches end of non-void function (`%s`) via %s",
self->name, self->curblock->label))
{
for (i = 0; i < vec_size(self->locals); ++i)
{
if (!ast_local_codegen(self->locals[i], func->ir_func, false)) {
- if (opts.debug)
+ if (OPTS_OPTION_BOOL(OPTION_DEBUG))
compile_error(ast_ctx(self), "failed to generate local `%s`", self->locals[i]->name);
return false;
}
for (i = 0; i < vec_size(self->exprs); ++i)
{
- ast_expression_codegen *gen = self->exprs[i]->expression.codegen;
+ ast_expression_codegen *gen;
if (func->curblock->final && !ast_istype(self->exprs[i], ast_label)) {
- compile_error(ast_ctx(self->exprs[i]), "unreachable statement");
- return false;
+ if (compile_warning(ast_ctx(self->exprs[i]), WARN_UNREACHABLE_CODE, "unreachable statement"))
+ return false;
+ continue;
}
+ gen = self->exprs[i]->codegen;
if (!(*gen)(self->exprs[i], func, false, out))
return false;
}
if (!(*cgen)((ast_expression*)(arr->setter), func, true, &funval))
return false;
- cgen = self->source->expression.codegen;
+ cgen = self->source->codegen;
if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
return false;
{
/* regular code */
- cgen = self->dest->expression.codegen;
+ cgen = self->dest->codegen;
/* lvalue! */
if (!(*cgen)((ast_expression*)(self->dest), func, true, &left))
return false;
self->expression.outl = left;
- cgen = self->source->expression.codegen;
+ cgen = self->source->codegen;
/* rvalue! */
if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
return false;
return true;
}
- if (OPTS_FLAG(SHORT_LOGIC) &&
+ if ((OPTS_FLAG(SHORT_LOGIC) || OPTS_FLAG(PERL_LOGIC)) &&
(self->op == INSTR_AND || self->op == INSTR_OR))
{
/* short circuit evaluation */
ir_block *from_left, *from_right;
ir_instr *phi;
size_t merge_id;
- uint16_t notop;
-
- /* Note about casting to true boolean values:
- * We use a single NOT for sub expressions, and an
- * overall NOT at the end, and for that purpose swap
- * all the jump conditions in order for the NOT to get
- * doubled.
- * ie: (a && b) usually becomes (!!a ? !!b : !!a)
- * but we translate this to (!(!a ? !a : !b))
- */
+ /* prepare end-block */
merge_id = vec_size(func->ir_func->blocks);
- merge = ir_function_create_block(ast_ctx(self), func->ir_func, ast_function_label(func, "sce_merge"));
+ merge = ir_function_create_block(ast_ctx(self), func->ir_func, ast_function_label(func, "sce_merge"));
- cgen = self->left->expression.codegen;
+ /* generate the left expression */
+ cgen = self->left->codegen;
if (!(*cgen)((ast_expression*)(self->left), func, false, &left))
return false;
- if (!OPTS_FLAG(PERL_LOGIC)) {
- notop = type_not_instr[left->vtype];
- if (notop == AINSTR_END) {
- compile_error(ast_ctx(self), "don't know how to cast to bool...");
- return false;
- }
- left = ir_block_create_unary(func->curblock, ast_ctx(self),
- ast_function_label(func, "sce_not"),
- notop,
- left);
- }
+ /* remember the block */
from_left = func->curblock;
+ /* create a new block for the right expression */
other = ir_function_create_block(ast_ctx(self), func->ir_func, ast_function_label(func, "sce_other"));
- if ( !(self->op == INSTR_OR) != !OPTS_FLAG(PERL_LOGIC) ) {
+ if (self->op == INSTR_AND) {
+ /* on AND: left==true -> other */
if (!ir_block_create_if(func->curblock, ast_ctx(self), left, other, merge))
return false;
} else {
+ /* on OR: left==false -> other */
if (!ir_block_create_if(func->curblock, ast_ctx(self), left, merge, other))
return false;
}
/* use the likely flag */
vec_last(func->curblock->instr)->likely = true;
+ /* enter the right-expression's block */
func->curblock = other;
- cgen = self->right->expression.codegen;
+ /* generate */
+ cgen = self->right->codegen;
if (!(*cgen)((ast_expression*)(self->right), func, false, &right))
return false;
- if (!OPTS_FLAG(PERL_LOGIC)) {
- notop = type_not_instr[right->vtype];
- if (notop == AINSTR_END) {
- compile_error(ast_ctx(self), "don't know how to cast to bool...");
- return false;
- }
- right = ir_block_create_unary(func->curblock, ast_ctx(self),
- ast_function_label(func, "sce_not"),
- notop,
- right);
- }
+ /* remember block */
from_right = func->curblock;
+ /* jump to the merge block */
if (!ir_block_create_jump(func->curblock, ast_ctx(self), merge))
return false;
vec_push(func->ir_func->blocks, merge);
func->curblock = merge;
- phi = ir_block_create_phi(func->curblock, ast_ctx(self), ast_function_label(func, "sce_value"), TYPE_FLOAT);
+ phi = ir_block_create_phi(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_value"),
+ self->expression.vtype);
ir_phi_add(phi, from_left, left);
ir_phi_add(phi, from_right, right);
*out = ir_phi_value(phi);
+ if (!*out)
+ return false;
+
if (!OPTS_FLAG(PERL_LOGIC)) {
- notop = type_not_instr[(*out)->vtype];
- if (notop == AINSTR_END) {
- compile_error(ast_ctx(self), "don't know how to cast to bool...");
- return false;
+ /* cast-to-bool */
+ if (OPTS_FLAG(CORRECT_LOGIC) && (*out)->vtype == TYPE_VECTOR) {
+ *out = ir_block_create_unary(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_bool_v"),
+ INSTR_NOT_V, *out);
+ if (!*out)
+ return false;
+ *out = ir_block_create_unary(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_bool"),
+ INSTR_NOT_F, *out);
+ if (!*out)
+ return false;
+ }
+ else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && (*out)->vtype == TYPE_STRING) {
+ *out = ir_block_create_unary(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_bool_s"),
+ INSTR_NOT_S, *out);
+ if (!*out)
+ return false;
+ *out = ir_block_create_unary(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_bool"),
+ INSTR_NOT_F, *out);
+ if (!*out)
+ return false;
+ }
+ else {
+ *out = ir_block_create_binop(func->curblock, ast_ctx(self),
+ ast_function_label(func, "sce_bool"),
+ INSTR_AND, *out, *out);
+ if (!*out)
+ return false;
}
- *out = ir_block_create_unary(func->curblock, ast_ctx(self),
- ast_function_label(func, "sce_final_not"),
- notop,
- *out);
}
- if (!*out)
- return false;
+
self->expression.outr = *out;
+ codegen_output_type(self, *out);
return true;
}
- cgen = self->left->expression.codegen;
+ cgen = self->left->codegen;
if (!(*cgen)((ast_expression*)(self->left), func, false, &left))
return false;
- cgen = self->right->expression.codegen;
+ cgen = self->right->codegen;
if (!(*cgen)((ast_expression*)(self->right), func, false, &right))
return false;
if (!*out)
return false;
self->expression.outr = *out;
+ codegen_output_type(self, *out);
return true;
}
if (!(*cgen)((ast_expression*)(idx), func, false, &iridx))
return false;
}
- cgen = self->dest->expression.codegen;
+ cgen = self->dest->codegen;
if (!(*cgen)((ast_expression*)(self->dest), func, false, &leftr))
return false;
/* source as rvalue only */
- cgen = self->source->expression.codegen;
+ cgen = self->source->codegen;
if (!(*cgen)((ast_expression*)(self->source), func, false, &right))
return false;
self->expression.outr = bin;
} else {
/* now store them */
- cgen = self->dest->expression.codegen;
+ cgen = self->dest->codegen;
/* lvalue of destination */
if (!(*cgen)((ast_expression*)(self->dest), func, true, &leftl))
return false;
return true;
}
- cgen = self->operand->expression.codegen;
+ cgen = self->operand->codegen;
/* lvalue! */
if (!(*cgen)((ast_expression*)(self->operand), func, false, &operand))
return false;
self->expression.outr = (ir_value*)1;
if (self->operand) {
- cgen = self->operand->expression.codegen;
+ cgen = self->operand->codegen;
/* lvalue! */
if (!(*cgen)((ast_expression*)(self->operand), func, false, &operand))
return false;
return true;
}
- cgen = self->entity->expression.codegen;
+ cgen = self->entity->codegen;
if (!(*cgen)((ast_expression*)(self->entity), func, false, &ent))
return false;
- cgen = self->field->expression.codegen;
+ cgen = self->field->codegen;
if (!(*cgen)((ast_expression*)(self->field), func, false, &field))
return false;
} else {
*out = ir_block_create_load_from_ent(func->curblock, ast_ctx(self), ast_function_label(func, "efv"),
ent, field, self->expression.vtype);
- /* Done AFTER error checking:
+ /* Done AFTER error checking:
codegen_output_type(self, *out);
*/
}
ir_value *vec;
/* in QC this is always an lvalue */
- (void)lvalue;
+ if (lvalue && self->rvalue) {
+ compile_error(ast_ctx(self), "not an l-value (member access)");
+ return false;
+ }
if (self->expression.outl) {
*out = self->expression.outl;
return true;
}
- cgen = self->owner->expression.codegen;
- if (!(*cgen)((ast_expression*)(self->owner), func, true, &vec))
+ cgen = self->owner->codegen;
+ if (!(*cgen)((ast_expression*)(self->owner), func, false, &vec))
return false;
if (vec->vtype != TYPE_VECTOR &&
- !(vec->vtype == TYPE_FIELD && self->owner->expression.next->expression.vtype == TYPE_VECTOR))
+ !(vec->vtype == TYPE_FIELD && self->owner->next->vtype == TYPE_VECTOR))
{
return false;
}
if (!lvalue && self->expression.outr) {
*out = self->expression.outr;
+ return true;
}
if (lvalue && self->expression.outl) {
*out = self->expression.outl;
+ return true;
}
if (!ast_istype(self->array, ast_value)) {
return false;
}
- cgen = self->index->expression.codegen;
+ cgen = self->index->codegen;
if (!(*cgen)((ast_expression*)(self->index), func, false, &iridx))
return false;
*out = ir_call_value(call);
self->expression.outr = *out;
+ (*out)->vtype = self->expression.vtype;
+ codegen_output_type(self, *out);
return true;
}
if (idx->expression.vtype == TYPE_FLOAT) {
unsigned int arridx = idx->constval.vfloat;
- if (arridx >= self->array->expression.count)
+ if (arridx >= self->array->count)
{
compile_error(ast_ctx(self), "array index out of bounds: %i", arridx);
return false;
}
else if (idx->expression.vtype == TYPE_INTEGER) {
unsigned int arridx = idx->constval.vint;
- if (arridx >= self->array->expression.count)
+ if (arridx >= self->array->count)
{
compile_error(ast_ctx(self), "array index out of bounds: %i", arridx);
return false;
compile_error(ast_ctx(self), "array indexing here needs an integer constant");
return false;
}
+ (*out)->vtype = self->expression.vtype;
+ codegen_output_type(self, *out);
return true;
}
self->expression.outr = (ir_value*)1;
/* generate the condition */
- cgen = self->cond->expression.codegen;
+ cgen = self->cond->codegen;
if (!(*cgen)((ast_expression*)(self->cond), func, false, &condval))
return false;
/* update the block which will get the jump - because short-logic or ternaries may have changed this */
func->curblock = ontrue;
/* generate */
- cgen = self->on_true->expression.codegen;
+ cgen = self->on_true->codegen;
if (!(*cgen)((ast_expression*)(self->on_true), func, false, &dummy))
return false;
func->curblock = onfalse;
/* generate */
- cgen = self->on_false->expression.codegen;
+ cgen = self->on_false->codegen;
if (!(*cgen)((ast_expression*)(self->on_false), func, false, &dummy))
return false;
/* generate the condition */
func->curblock = cond;
- cgen = self->cond->expression.codegen;
+ cgen = self->cond->codegen;
if (!(*cgen)((ast_expression*)(self->cond), func, false, &condval))
return false;
cond_out = func->curblock;
func->curblock = ontrue;
/* generate */
- cgen = self->on_true->expression.codegen;
+ cgen = self->on_true->codegen;
if (!(*cgen)((ast_expression*)(self->on_true), func, false, &trueval))
return false;
func->curblock = onfalse;
/* generate */
- cgen = self->on_false->expression.codegen;
+ cgen = self->on_false->codegen;
if (!(*cgen)((ast_expression*)(self->on_false), func, false, &falseval))
return false;
/* Here, now, we need a PHI node
* but first some sanity checking...
*/
- if (trueval->vtype != falseval->vtype) {
+ if (trueval->vtype != falseval->vtype && trueval->vtype != TYPE_NIL && falseval->vtype != TYPE_NIL) {
/* error("ternary with different types on the two sides"); */
+ compile_error(ast_ctx(self), "internal error: ternary operand types invalid");
return false;
}
/* create PHI */
- phi = ir_block_create_phi(merge, ast_ctx(self), ast_function_label(func, "phi"), trueval->vtype);
- if (!phi)
+ phi = ir_block_create_phi(merge, ast_ctx(self), ast_function_label(func, "phi"), self->expression.vtype);
+ if (!phi) {
+ compile_error(ast_ctx(self), "internal error: failed to generate phi node");
return false;
+ }
ir_phi_add(phi, ontrue_out, trueval);
ir_phi_add(phi, onfalse_out, falseval);
ir_block *bcontinue = NULL;
ir_block *bbreak = NULL;
- ir_block *old_bcontinue = NULL;
- ir_block *old_bbreak = NULL;
-
ir_block *tmpblock = NULL;
(void)lvalue;
*/
if (self->initexpr)
{
- cgen = self->initexpr->expression.codegen;
+ cgen = self->initexpr->codegen;
if (!(*cgen)((ast_expression*)(self->initexpr), func, false, &dummy))
return false;
}
func->curblock = bprecond;
/* generate */
- cgen = self->precond->expression.codegen;
+ cgen = self->precond->codegen;
if (!(*cgen)((ast_expression*)(self->precond), func, false, &precond))
return false;
/* enter */
func->curblock = bbody;
- old_bbreak = func->breakblock;
- old_bcontinue = func->continueblock;
- func->breakblock = bbreak;
- func->continueblock = bcontinue;
- if (!func->continueblock)
- func->continueblock = bbody;
+ vec_push(func->breakblocks, bbreak);
+ if (bcontinue)
+ vec_push(func->continueblocks, bcontinue);
+ else
+ vec_push(func->continueblocks, bbody);
/* generate */
if (self->body) {
- cgen = self->body->expression.codegen;
+ cgen = self->body->codegen;
if (!(*cgen)((ast_expression*)(self->body), func, false, &dummy))
return false;
}
end_bbody = func->curblock;
- func->breakblock = old_bbreak;
- func->continueblock = old_bcontinue;
+ vec_pop(func->breakblocks);
+ vec_pop(func->continueblocks);
}
/* post-loop-condition */
func->curblock = bpostcond;
/* generate */
- cgen = self->postcond->expression.codegen;
+ cgen = self->postcond->codegen;
if (!(*cgen)((ast_expression*)(self->postcond), func, false, &postcond))
return false;
func->curblock = bincrement;
/* generate */
- cgen = self->increment->expression.codegen;
+ cgen = self->increment->codegen;
if (!(*cgen)((ast_expression*)(self->increment), func, false, &dummy))
return false;
else if (bpostcond) ontrue = bpostcond;
else ontrue = bprecond;
onfalse = bout;
+ if (self->pre_not) {
+ tmpblock = ontrue;
+ ontrue = onfalse;
+ onfalse = tmpblock;
+ }
if (!ir_block_create_if(end_bprecond, ast_ctx(self), precond, ontrue, onfalse))
return false;
}
else if (bincrement) ontrue = bincrement;
else ontrue = bpostcond;
onfalse = bout;
+ if (self->post_not) {
+ tmpblock = ontrue;
+ ontrue = onfalse;
+ onfalse = tmpblock;
+ }
if (!ir_block_create_if(end_bpostcond, ast_ctx(self), postcond, ontrue, onfalse))
return false;
}
self->expression.outr = (ir_value*)1;
if (self->is_continue)
- target = func->continueblock;
+ target = func->continueblocks[vec_size(func->continueblocks)-1-self->levels];
else
- target = func->breakblock;
+ target = func->breakblocks[vec_size(func->breakblocks)-1-self->levels];
if (!target) {
compile_error(ast_ctx(self), "%s is lacking a target block", (self->is_continue ? "continue" : "break"));
ir_value *dummy = NULL;
ir_value *irop = NULL;
- ir_block *old_break = NULL;
ir_block *bout = NULL;
ir_block *bfall = NULL;
size_t bout_id;
(void)lvalue;
(void)out;
- cgen = self->operand->expression.codegen;
+ cgen = self->operand->codegen;
if (!(*cgen)((ast_expression*)(self->operand), func, false, &irop))
return false;
return true;
cmpinstr = type_eq_instr[irop->vtype];
- if (cmpinstr >= AINSTR_END) {
+ if (cmpinstr >= VINSTR_END) {
ast_type_to_string(self->operand, typestr, sizeof(typestr));
compile_error(ast_ctx(self), "invalid type to perform a switch on: %s", typestr);
return false;
return false;
/* setup the break block */
- old_break = func->breakblock;
- func->breakblock = bout;
+ vec_push(func->breakblocks, bout);
/* Now create all cases */
for (c = 0; c < vec_size(self->cases); ++c) {
if (swcase->value) {
/* A regular case */
/* generate the condition operand */
- cgen = swcase->value->expression.codegen;
+ cgen = swcase->value->codegen;
if (!(*cgen)((ast_expression*)(swcase->value), func, false, &val))
return false;
/* generate the condition */
/* enter the case */
func->curblock = bcase;
- cgen = swcase->code->expression.codegen;
+ cgen = swcase->code->codegen;
if (!(*cgen)((ast_expression*)swcase->code, func, false, &dummy))
return false;
}
/* Now generate the default code */
- cgen = def_case->code->expression.codegen;
+ cgen = def_case->code->codegen;
if (!(*cgen)((ast_expression*)def_case->code, func, false, &dummy))
return false;
func->curblock = bout;
/* restore the break block */
- func->breakblock = old_break;
+ vec_pop(func->breakblocks);
/* Move 'bout' to the end, it's nicer */
vec_remove(func->ir_func->blocks, bout_id, 1);
size_t i;
ir_value *dummy;
+ if (self->undefined) {
+ compile_error(ast_ctx(self), "internal error: ast_label never defined");
+ return false;
+ }
+
*out = NULL;
if (lvalue) {
compile_error(ast_ctx(self), "internal error: ast_label cannot be an lvalue");
if (self->irblock_from) {
/* we already tried once, this is the callback */
self->irblock_from->final = false;
- if (!ir_block_create_jump(self->irblock_from, ast_ctx(self), self->target->irblock)) {
+ if (!ir_block_create_goto(self->irblock_from, ast_ctx(self), self->target->irblock)) {
compile_error(ast_ctx(self), "failed to generate goto to `%s`", self->name);
return false;
}
}
else
{
- if (!ir_block_create_jump(func->curblock, ast_ctx(self), self->target->irblock)) {
+ if (!ir_block_create_goto(func->curblock, ast_ctx(self), self->target->irblock)) {
compile_error(ast_ctx(self), "failed to generate goto to `%s`", self->name);
return false;
}
return true;
}
- cgen = self->func->expression.codegen;
+ cgen = self->func->codegen;
if (!(*cgen)((ast_expression*)(self->func), func, false, &funval))
return false;
if (!funval)
ir_value *param;
ast_expression *expr = self->params[i];
- cgen = expr->expression.codegen;
+ cgen = expr->codegen;
if (!(*cgen)(expr, func, false, ¶m))
goto error;
if (!param)
vec_push(params, param);
}
- callinstr = ir_block_create_call(func->curblock, ast_ctx(self), ast_function_label(func, "call"), funval, false);
+ /* varargs counter */
+ if (self->va_count) {
+ ir_value *va_count;
+ ir_builder *builder = func->curblock->owner->owner;
+ cgen = self->va_count->codegen;
+ if (!(*cgen)((ast_expression*)(self->va_count), func, false, &va_count))
+ return false;
+ if (!ir_block_create_store_op(func->curblock, ast_ctx(self), INSTR_STORE_F,
+ ir_builder_get_va_count(builder), va_count))
+ {
+ return false;
+ }
+ }
+
+ callinstr = ir_block_create_call(func->curblock, ast_ctx(self),
+ ast_function_label(func, "call"),
+ funval, !!(self->func->flags & AST_FLAG_NORETURN));
if (!callinstr)
goto error;