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Strings galore!

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This commit is contained in:
gingerBill
2016-08-05 21:07:25 +01:00
parent 4a303b5c3e
commit ba238c569a
12 changed files with 473 additions and 312 deletions
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src/checker/expr.cpp
+21 -13
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@@ -11,6 +11,7 @@ void convert_to_typed (Checker *c, Operand *operand, Type *targ
gbString expr_to_string (AstNode *expression);
void check_entity_decl (Checker *c, Entity *e, DeclInfo *decl, Type *named_type);
void check_proc_body (Checker *c, Token token, DeclInfo *decl, Type *type, AstNode *body);
void update_expr_type (Checker *c, AstNode *e, Type *type, b32 final);
void check_struct_type(Checker *c, Type *struct_type, AstNode *node) {
@@ -664,7 +665,10 @@ void check_comparison(Checker *c, Operand *x, Operand *y, Token op) {
y->mode == Addressing_Constant) {
x->value = make_exact_value_bool(compare_exact_values(op, x->value, y->value));
} else {
// TODO(bill): What should I do?
x->mode = Addressing_Value;
update_expr_type(c, x->expr, default_type(x->type), true);
update_expr_type(c, y->expr, default_type(y->type), true);
}
x->type = t_untyped_bool;
@@ -770,33 +774,35 @@ void check_binary_expr(Checker *c, Operand *x, AstNode *node) {
}
void update_expr_type(Checker *c, AstNode *e, Type *type) {
ExpressionInfo *found = map_get(&c->info.untyped, hash_pointer(e));
if (!found)
void update_expr_type(Checker *c, AstNode *e, Type *type, b32 final) {
u64 key = hash_pointer(e);
ExpressionInfo *found = map_get(&c->info.untyped, key);
if (found == NULL)
return;
switch (e->kind) {
case_ast_node(ue, UnaryExpr, e);
if (found->value.kind != ExactValue_Invalid)
break;
update_expr_type(c, ue->expr, type);
break;
update_expr_type(c, ue->expr, type, final);
case_end;
case_ast_node(be, BinaryExpr, e);
if (found->value.kind != ExactValue_Invalid)
break;
if (!token_is_comparison(be->op)) {
update_expr_type(c, be->left, type);
update_expr_type(c, be->right, type);
update_expr_type(c, be->left, type, final);
update_expr_type(c, be->right, type, final);
}
case_end;
}
if (is_type_untyped(type)) {
if (!final && is_type_untyped(type)) {
found->type = get_base_type(type);
map_set(&c->info.untyped, key, *found);
} else {
found->type = type;
map_remove(&c->info.untyped, key);
add_type_and_value(&c->info, e, found->mode, type, found->value);
}
}
@@ -838,7 +844,7 @@ void convert_to_typed(Checker *c, Operand *operand, Type *target_type) {
if (is_type_numeric(x) && is_type_numeric(y)) {
if (x < y) {
operand->type = target_type;
update_expr_type(c, operand->expr, target_type);
update_expr_type(c, operand->expr, target_type, false);
}
} else if (x != y) {
convert_untyped_error(c, operand, target_type);
@@ -1479,10 +1485,10 @@ b32 check_castable_to(Checker *c, Operand *operand, Type *y) {
}
// []byte/[]u8 <-> string
if (is_type_byte_slice(xb) && is_type_string(yb)) {
if (is_type_u8_slice(xb) && is_type_string(yb)) {
return true;
}
if (is_type_string(xb) && is_type_byte_slice(yb)) {
if (is_type_string(xb) && is_type_u8_slice(yb)) {
return true;
}
@@ -1722,6 +1728,8 @@ ExpressionKind check__expr_base(Checker *c, Operand *o, AstNode *node, Type *typ
if (o->mode == Addressing_Constant) {
max_count = o->value.value_string.len;
}
if (o->mode != Addressing_Variable)
o->mode = Addressing_Value;
o->type = t_u8;
}
break;