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Slices and slice expressions

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This commit is contained in:
gingerBill
2016-07-08 01:04:57 +01:00
parent 7430008fd7
commit 9ba2a6d02c
8 changed files with 327 additions and 48 deletions
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src/checker/type.cpp
+27 -6
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@@ -55,6 +55,7 @@ enum TypeKind {
Type_Basic,
Type_Array,
Type_Slice,
Type_Structure,
Type_Pointer,
Type_Named,
@@ -71,6 +72,9 @@ struct Type {
Type *element;
i64 count;
} array;
struct {
Type *element;
} slice;
struct {
// Theses are arrays
Entity **fields; // Entity_Variable
@@ -111,6 +115,7 @@ void set_base_type(Type *t, Type *base) {
}
// TODO(bill): Remove heap allocation
Type *alloc_type(TypeKind kind) {
Type *t = gb_alloc_item(gb_heap_allocator(), Type);
t->kind = kind;
@@ -123,6 +128,7 @@ Type *make_type_basic(BasicType basic) {
t->basic = basic;
return t;
}
Type *make_type_array(Type *element, i64 count) {
Type *t = alloc_type(Type_Array);
t->array.element = element;
@@ -130,6 +136,12 @@ Type *make_type_array(Type *element, i64 count) {
return t;
}
Type *make_type_slice(Type *element) {
Type *t = alloc_type(Type_Slice);
t->array.element = element;
return t;
}
Type *make_type_structure(void) {
Type *t = alloc_type(Type_Structure);
return t;
@@ -166,7 +178,7 @@ Type *make_type_procedure(Scope *scope, Type *params, isize params_count, Type *
#define STR_LIT(x) {cast(u8 *)x, gb_size_of(x)-1}
#define STR_LIT(x) {cast(u8 *)(x), gb_size_of(x)-1}
gb_global Type basic_types[] = {
{Type_Basic, {Basic_Invalid, 0, STR_LIT("invalid type")}},
{Type_Basic, {Basic_bool, BasicFlag_Boolean, STR_LIT("bool")}},
@@ -483,10 +495,11 @@ i64 type_size_of(BaseTypeSizes s, gbAllocator allocator, Type *t) {
}
i64 type_offset_of(BaseTypeSizes s, gbAllocator allocator, Type *t, isize index) {
GB_ASSERT(t->kind == Type_Structure);
type_set_offsets(s, allocator, t);
if (gb_is_between(index, 0, t->structure.field_count-1)) {
return t->structure.offsets[index];
if (t->kind == Type_Structure) {
type_set_offsets(s, allocator, t);
if (gb_is_between(index, 0, t->structure.field_count-1)) {
return t->structure.offsets[index];
}
}
return 0;
}
@@ -501,6 +514,7 @@ gbString write_type_to_string(gbString str, Type *type) {
case Type_Basic:
str = gb_string_append_length(str, type->basic.name.text, type->basic.name.len);
break;
case Type_Array:
if (type->array.count >= 0) {
str = gb_string_appendc(str, gb_bprintf("[%td]", type->array.count));
@@ -509,12 +523,18 @@ gbString write_type_to_string(gbString str, Type *type) {
}
str = write_type_to_string(str, type->array.element);
break;
case Type_Slice:
str = gb_string_appendc(str, "[]");
str = write_type_to_string(str, type->array.element);
break;
case Type_Structure: {
str = gb_string_appendc(str, "struct{");
for (isize i = 0; i < type->structure.field_count; i++) {
Entity *f = type->structure.fields[i];
GB_ASSERT(f->kind == Entity_Variable);
if (i < type->structure.field_count-1)
if (i > 0)
str = gb_string_appendc(str, "; ");
str = gb_string_append_length(str, f->token.string.text, f->token.string.len);
str = gb_string_appendc(str, ": ");
@@ -564,6 +584,7 @@ gbString write_type_to_string(gbString str, Type *type) {
}
break;
}
return str;
}