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Changelog

2022-07-13

Rust (0.7.15)

  • Fix parser: underscore for hexnum; semicolon at the EOF
  • Fix semicolon in Rust binding
  • Derive Copy, Eq, Default for Reserved
  • Bump ic-types to 0.4

Candid UI

  • Fetch did file from canister metadata
  • Deprecate localhost/_/candid endpoint
  • Fetch name section from metadata (instrumented code)
  • Bug fix for encoding vec nat8 types
  • Disable profiler for query methods

2022-03-30 (Rust 0.7.11 -- 0.7.14)

  • Update service methods in TS bindings to use ActorMethod, the type used by agent-js's Actor class
  • Infer the type of vec {} to vec empty to satisfy subtype checking
  • Expose more internal structures

2022-01-06 (Rust 0.7.10)

  • Bump ic-types to 0.3
  • candid::utils::service_compatible to check for upgrade compatibility of two service types

2021-12-20

Rust (0.7.9)

  • Generate Rust binding from Candid file (experimental)
  • Ignore init args for subtype checking
  • Pretty print text value with escape_debug
  • More visitors for Nat and Int type

Candid UI

  • Flamegraph when profiling feature is enabled

2021-09-30 (Rust 0.7.8)

  • Fix subtype function to take only one env. To check subtyping from two did files, use env.merge_type(env2, ty2) to merge the env and rename variable names.

2021-09-09

  • Release ARM binary for didc
  • Refine the spec for opt rules

2021-08-17

Rust (0.7.5 -- 0.7.7)

  • Support import when parsing did files with check_file function
  • Fix TypeScript binding for reference types

Candid UI

  • Report profiling info when __get_cycles method is available
  • Add binding generation and subtype checking for Candid UI canister

2021-07-07 (Rust 0.7.2 -- 0.7.4)

  • Update TypeScript binding to better integrate with dfx
  • Set is_human_readable to false in Deserializer

2021-06-30 (Rust 0.7.1)

  • Update JS binding to use Principal from @dfinity/principal
  • Add #[candid_path("path_to_candid")] helper attribute to the candid derive macro
  • Update ic-types to 0.2.0

2021-06-03

Spec

  • Update spec to introduce subtyping check in deserialization #168
  • Coq proof for subtype check
  • Update test suite to conform with the new spec

Rust (0.7.0)

Breaking changes

  • Require full subtype checking in deserialization. This removes undefined behavior when trying to decode variant and empty vector at types that are not supertype of the wire type.
  • Deserialization requires both Deserialize and CandidType trait.
  • de::ArgumentDecoder, ser::ArgumentEncoder moved to utils::{ArgumentDecoder, ArgumentEncoder}.
  • types::subtype returns Result<()> instead of bool for better error message.
  • Disable subtyping conversion for opt rules in IDLValue.annotate_type.
  • Display type annotations for number types.

Non-breaking changes

  • Better error messages in deserialization
  • Remove unnessary reqwest dependency
  • Implement CandidType for str

Tools

  • didc bind to support Motoko bindings
  • didc hash to compute hash of a field name
  • didc decode can decode blob format
  • Candid UI canister

2021-04-07 (Rust 0.6.19 -- 0.6.21)

  • Fix a bug for serializing recursive values in Rust CDK #210
  • Use BigInt in JS/TS binding
  • Fix TypeScript binding for tuple
  • Rust support for Func and Service value

2021-03-17

Rust (0.6.18)

  • #[candid_method(init)] to support init arguments in service actor
  • Subtyping check for Candid types
  • Handle subtyping for reserved and int in decoding

Other

  • Benchmark for Rust library with criterion
  • didc check and didc subtype command to check for subtyping
  • Conditional running CI for Coq or Rust library

2021-03-04 (Rust 0.6.17)

  • Support serde_bytes for efficient handling of &[u8] and Vec<u8>

2021-02-11

Rust (0.6.16)

  • Typescript binding for Candid
  • Support more native Rust types: Path, PathBuf, VecDeque, LinkedList, BinaryHeap, Cow, Cell, RefCell

Other

  • Documentation for type mapping and howto section
  • didc bind to generate typescript binding

2021-02-01

Rust (0.6.14 -- 0.6.15)

  • Generate random Candid values
  • Sort method names lexicographically

Other

  • Candid user guide
  • More Coq proof for MiniCandid
  • didc random command and an experimental config file

2021-01-12 (Rust 0.6.13)

  • Better pretty printer for Candid value

2021-01-06

Rust (0.6.12)

  • Support reference types
  • Support more native Rust types: HashMap, HashSet, BTreeMap, BTreeSet, i128, u128
  • Bug fix for empty record detection when deserializing to native Rust types

Other

  • Test suites for reference types
  • didc encode supports outputing blob format

2020-12-07

Spec

  • Bug fix for opt subtyping
  • Formalize definitions of IDL-soundness in Coq

Rust (0.6.11)

  • Support the opt subtyping rules
  • Allow using Rust keyword as field label

Tests

  • Add opt subtyping tests

2020-11-05

Spec

  • Rewrite description of deserialization #128

Rust (0.6.9 -- 0.6.10)

  • Add result getter for serializer
  • Implement CandidType for std::time::SystemTime and Duration

2020-10-20

Spec

  • Add service initialization parameters #88
  • Reverse subtyping on records and variants #110

Rust (0.6.4 -- 0.6.8)

  • Support service constructor
  • Export init types in JS binding for service constructor
  • Improve pretty-printing for Candid values: underscore for numerals, blob shorthand for vec nat8.
  • Disable pretty-printing for large vectors.
  • Add attribute #[candid_method] to derive Candid types for functions.
  • Add a feature flag cdk to generate candid path specifically for Rust CDK.

Tools

  • Candid UI canister to render a web UI for all running canisters on the network.

2020-09-10 (Rust 0.6.2 -- 0.6.3)

  • Fix a bug when decoding nested record values.

2020-09-10 (Rust 0.6.1)

  • Add encode_args and decode_args functions to encode/decode sequence of arguments.

2020-09-02 (Rust 0.6.0)

  • Use ic-types for Principal (breaking change)
  • Support type annotations in parsing Candid values
  • Support float e notation
  • Support nested comments
  • Pretty print decoded candid values
  • New lexer using the logos crate
  • Use codespan-reporting to report Rust-like parsing errors

2020-08-24

Rust (0.5.3)

  • Fix deserialization to validate type table and detect infinite loop in type T = record { T }
  • Fix serialization for newtype struct
  • Display trait for pretty printing types::Type

Tests

  • More test suites for prim and construct types
  • Tools for emitting JavaScript tests from Candid test suites

2020-08-18

Tools

  • Publish didc and candiff binary in the release
  • Generate JS tests from the Candid test suites

2020-08-14

Spec

  • No longer requires the shortest LEB128 number in deserialization #79

Rust

  • Parser improvements:
    • Floats in fractional number, no e-notation yet
    • Comments (no nested comments)
    • Blob shorthand for vec nat8 value
    • Fix text parser to valiate utf-8 encoding
  • Bounds check for bool and text
  • Type annotation for reserved

Tools

  • Initial commit for didc and candiff tools
  • Add Candid test suite