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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| // Copyright (c) The Starcoin Core Contributors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
|
|
||
| use move_core_types::{ | ||
| account_address::AccountAddress, identifier::Identifier, language_storage::ModuleId, | ||
| }; | ||
| use move_model::{ | ||
| ast::Attribute, | ||
| model::{FunctionEnv, GlobalEnv, Loc, ModuleEnv, QualifiedId, StructId}, | ||
| symbol::Symbol, | ||
| ty::{PrimitiveType, Type}, | ||
| }; | ||
| use std::rc::Rc; | ||
|
|
||
| pub(crate) fn run_extended_checks(env: &GlobalEnv) { | ||
| let checker = ExtendedChecker::new(env); | ||
| checker.run(); | ||
| } | ||
|
|
||
| struct ExtendedChecker<'a> { | ||
| env: &'a GlobalEnv, | ||
| /// The id of the module defining error categories | ||
| #[allow(unused)] | ||
| error_category_module: ModuleId, | ||
| } | ||
|
|
||
| impl<'a> ExtendedChecker<'a> { | ||
| fn new(env: &'a GlobalEnv) -> Self { | ||
| Self { | ||
| env, | ||
| error_category_module: ModuleId::new( | ||
| AccountAddress::ONE, | ||
| Identifier::new("error").unwrap(), | ||
| ), | ||
| } | ||
| } | ||
|
|
||
| fn run(&self) { | ||
| for ref module in self.env.get_modules() { | ||
| if module.is_target() { | ||
| self.check_entry_functions(module); | ||
| self.check_init_module(module); | ||
| self.build_error_map(module); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // ------------------------------------------------------------------------------------------------- | ||
| // Helper functions | ||
|
|
||
| impl<'a> ExtendedChecker<'a> { | ||
| fn has_attribute(&self, fun: &FunctionEnv, attr_name: &str) -> bool { | ||
| self.has_attribute_iter(fun.get_attributes().iter(), attr_name) | ||
| } | ||
|
|
||
| fn has_attribute_iter( | ||
| &self, | ||
| mut attrs: impl Iterator<Item = &'a Attribute>, | ||
| attr_name: &str, | ||
| ) -> bool { | ||
| attrs.any(|attr| { | ||
| if let Attribute::Apply(_, name, _) = attr { | ||
| self.env.symbol_pool().string(*name).as_str() == attr_name | ||
| } else { | ||
| false | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| #[allow(unused)] | ||
| fn get_runtime_module_id(&self, module: &ModuleEnv<'_>) -> ModuleId { | ||
| let name = module.get_name(); | ||
| let addr = AccountAddress::from_hex_literal(&format!("0x{:x}", name.addr())).unwrap(); | ||
| let name = Identifier::new(self.name_string(name.name()).to_string()).unwrap(); | ||
| ModuleId::new(addr, name) | ||
| } | ||
|
|
||
| #[allow(unused)] | ||
| fn name_string(&self, symbol: Symbol) -> Rc<String> { | ||
| self.env.symbol_pool().string(symbol) | ||
| } | ||
| } | ||
|
|
||
| // ------------------------------------------------------------------------------------------------- | ||
| // Module Initialization | ||
|
|
||
| impl<'a> ExtendedChecker<'a> { | ||
| fn check_init_module(&self, _module: &ModuleEnv) { | ||
| // TODO(simon): implement me. | ||
| } | ||
| } | ||
|
|
||
| // ------------------------------------------------------------------------------------------------- | ||
| // Entry Functions | ||
|
|
||
| impl<'a> ExtendedChecker<'a> { | ||
| fn check_entry_functions(&self, module: &ModuleEnv) { | ||
| for ref fun in module.get_functions() { | ||
| if !fun.is_entry() { | ||
| continue; | ||
| } | ||
|
|
||
| if self.has_attribute(fun, "legacy_entry_function") { | ||
| continue; | ||
| } | ||
|
|
||
| self.check_transaction_args(&fun.get_id_loc(), &fun.get_parameter_types()); | ||
| if fun.get_return_count() > 0 { | ||
| self.env | ||
| .error(&fun.get_id_loc(), "entry function cannot return values") | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fn check_transaction_args(&self, loc: &Loc, args: &[Type]) { | ||
| for ty in args { | ||
| self.check_transaction_input_type(loc, ty); | ||
| } | ||
| } | ||
|
|
||
| fn check_transaction_input_type(&self, loc: &Loc, ty: &Type) { | ||
| use Type::*; | ||
| match ty { | ||
| Primitive(_) | TypeParameter(_) => { | ||
| // Any primitive type allowed, any parameter expected to instantiate with primitive | ||
| } | ||
| //todo(simon): give it a try to change me to Reference(ReferenceKind::Immutable, bt) | ||
| Reference(false, bt) if matches!(bt.as_ref(), Primitive(PrimitiveType::Signer)) => { | ||
| // Reference to signer allowed | ||
| } | ||
| Vector(ety) => { | ||
| // Vectors are allowed if element type is allowed | ||
| self.check_transaction_input_type(loc, ety) | ||
| } | ||
| Struct(mid, sid, _) if self.is_allowed_input_struct(mid.qualified(*sid)) => { | ||
| // Specific struct types are allowed | ||
| } | ||
| _ => { | ||
| // Everything else is disallowed. | ||
| self.env.error( | ||
| loc, | ||
| &format!( | ||
| "type `{}` is not supported as a parameter type", | ||
| ty.display(&self.env.get_type_display_ctx()) | ||
| ), | ||
| ); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| fn is_allowed_input_struct(&self, qid: QualifiedId<StructId>) -> bool { | ||
| let name = self.env.get_struct(qid).get_full_name_with_address(); | ||
| // TODO(simon) find a nice way to keep this in sync with allowed_structs in starcoin-vm | ||
| matches!( | ||
| name.as_str(), | ||
| "0x1::string::String" | ||
| | "0x1::object::Object" | ||
| | "0x1::option::Option" | ||
| | "0x1::fixed_point32::FixedPoint32" | ||
| | "0x1::fixed_point64::FixedPoint64" | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| // ------------------------------------------------------------------------------------------------- | ||
| // Build errors map | ||
|
|
||
| impl<'a> ExtendedChecker<'a> { | ||
| fn build_error_map(&self, _module: &ModuleEnv) { | ||
| // TODO(simon): implement me. | ||
| } | ||
| } |
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