diff options
Diffstat (limited to 'src/sema/sema.c')
| -rw-r--r-- | src/sema/sema.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/src/sema/sema.c b/src/sema/sema.c index 12fd53f..4b4bc26 100644 --- a/src/sema/sema.c +++ b/src/sema/sema.c @@ -33,6 +33,8 @@ static bool check_duplicate_names(struct Source source, struct Program* program) return true; struct Token* names = malloc(count * sizeof(struct Token)); + if (names == NULL) + return true; size_t n = 0; for (size_t i = 0; i < program->const_count; i += 1) { @@ -92,7 +94,7 @@ static bool check_entry_point(struct Source source, struct Program* program) return false; } -static bool is_program_const(struct Program* program, struct Token name) +static bool is_program_const(const struct Program* program, struct Token name) { for (size_t i = 0; i < program->const_count; i += 1) if (names_equal(program->consts[i].name, name)) @@ -227,7 +229,7 @@ static bool is_register(struct RefCheck* check, struct Token token) return check->program->config.logical_registers && is_logical_register(token); } -static bool is_param(struct RefCheck* check, struct Token token) +static bool is_param(const struct RefCheck* check, struct Token token) { for (size_t i = 0; i < check->proc->param_count; i += 1) if (names_equal(check->proc->params[i].name, token)) @@ -236,7 +238,7 @@ static bool is_param(struct RefCheck* check, struct Token token) return false; } -static bool is_const(struct RefCheck* check, struct Token token) +static bool is_const(const struct RefCheck* check, struct Token token) { for (size_t i = 0; i < check->program->const_count; i += 1) if (names_equal(check->program->consts[i].name, token)) @@ -245,7 +247,7 @@ static bool is_const(struct RefCheck* check, struct Token token) return false; } -static bool is_data(struct RefCheck* check, struct Token token) +static bool is_data(const struct RefCheck* check, struct Token token) { for (size_t i = 0; i < check->program->data_count; i += 1) if (names_equal(check->program->data_decls[i].name, token)) @@ -276,7 +278,7 @@ static bool is_stack_buffer(struct RefCheck* check, struct Token token) { for (size_t i = 0; i < check->proc->body_count; i += 1) { - struct Statement* statement = &check->proc->body[i]; + const struct Statement* statement = &check->proc->body[i]; if (statement->kind == STATEMENT_STACK && names_equal(statement->stack.name, token)) return true; } @@ -288,7 +290,7 @@ static bool is_label(struct RefCheck* check, struct Token token) { for (size_t i = 0; i < check->proc->body_count; i += 1) { - struct Statement* statement = &check->proc->body[i]; + const struct Statement* statement = &check->proc->body[i]; if (statement->kind == STATEMENT_LABEL && names_equal(statement->label.name, token)) return true; } @@ -305,7 +307,7 @@ static void check_value_name(struct RefCheck* check, struct Token name) ref_error(check, name, "undefined name '%.*s'", (int)name.length, name.start); } -static void check_expr(struct RefCheck* check, struct Expr* expr) +static void check_expr(struct RefCheck* check, const struct Expr* expr) { switch (expr->kind) { @@ -319,7 +321,7 @@ static void check_expr(struct RefCheck* check, struct Expr* expr) break; case EXPR_DEREF: { - struct Expr* address = expr->deref.address; + const struct Expr* address = expr->deref.address; if (address->kind == EXPR_PRIMARY && (is_register(check, address->primary.token) || is_param(check, address->primary.token))) break; @@ -332,7 +334,7 @@ static void check_expr(struct RefCheck* check, struct Expr* expr) } case EXPR_MEMBER: { - struct Expr* object = expr->member.object; + const struct Expr* object = expr->member.object; struct Token member = expr->member.member; if (member.type == TOKEN_INTEGER) @@ -344,7 +346,7 @@ static void check_expr(struct RefCheck* check, struct Expr* expr) if (object->kind == EXPR_PRIMARY) { - struct EnumDecl* enumeration = find_enum(check, object->primary.token); + const struct EnumDecl* enumeration = find_enum(check, object->primary.token); if (enumeration != NULL) { bool found = false; @@ -358,7 +360,7 @@ static void check_expr(struct RefCheck* check, struct Expr* expr) break; } - struct StructDecl* layout = find_struct(check, object->primary.token); + const struct StructDecl* layout = find_struct(check, object->primary.token); if (layout != NULL) { bool found = token_is(member, "size"); @@ -406,7 +408,7 @@ static void check_stack_size(struct RefCheck* check, struct Expr* expr) break; case EXPR_MEMBER: { - struct Expr* object = expr->member.object; + const struct Expr* object = expr->member.object; if (object->kind == EXPR_PRIMARY && (find_enum(check, object->primary.token) != NULL || find_struct(check, object->primary.token) != NULL)) |