From 97e314c86649e76f0a62ed0aa6fc0e8400ed2179 Mon Sep 17 00:00:00 2001 From: Lily Acorn Date: Fri, 1 Aug 2025 14:02:09 +0100 Subject: [PATCH] Convert fluent errors into annotated source code This uses the wonderful `miette` crate for annotating the `.flt` file source code. --- CHANGELOG.md | 2 + Cargo.lock | 316 ++++++++++++++++++++++++++++++++- Cargo.toml | 1 + src/lib.rs | 13 +- tests/test_python_interface.py | 25 ++- 5 files changed, 342 insertions(+), 15 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index f8e7c40..9b97cfc 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [Unreleased] +- Annotate `ftl` file source code when reporting parse errors to allow ergonomic debugging. + ## [0.1.0a7] - 2025-01-29 - Correct stringified name of ParserError exception. diff --git a/Cargo.lock b/Cargo.lock index b403526..572c2a7 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,6 +2,21 @@ # It is not intended for manual editing. version = 4 +[[package]] +name = "addr2line" +version = "0.24.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1" +dependencies = [ + "gimli", +] + +[[package]] +name = "adler2" +version = "2.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa" + [[package]] name = "android-tzdata" version = "0.1.1" @@ -23,6 +38,36 @@ version = "1.3.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0c4b4d0bd25bd0b74681c0ad21497610ce1b7c91b1022cd21c80c6fbdd9476b0" +[[package]] +name = "backtrace" +version = "0.3.75" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "6806a6321ec58106fea15becdad98371e28d92ccbc7c8f1b3b6dd724fe8f1002" +dependencies = [ + "addr2line", + "cfg-if", + "libc", + "miniz_oxide", + "object", + "rustc-demangle", + "windows-targets 0.52.6", +] + +[[package]] +name = "backtrace-ext" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "537beee3be4a18fb023b570f80e3ae28003db9167a751266b259926e25539d50" +dependencies = [ + "backtrace", +] + +[[package]] +name = "bitflags" +version = "2.9.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967" + [[package]] name = "bumpalo" version = "3.16.0" @@ -75,6 +120,16 @@ dependencies = [ "syn", ] +[[package]] +name = "errno" +version = "0.3.13" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad" +dependencies = [ + "libc", + "windows-sys 0.60.2", +] + [[package]] name = "fluent" version = "0.17.0" @@ -120,6 +175,12 @@ dependencies = [ "thiserror", ] +[[package]] +name = "gimli" +version = "0.31.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f" + [[package]] name = "heck" version = "0.5.0" @@ -174,6 +235,12 @@ dependencies = [ "unic-langid", ] +[[package]] +name = "is_ci" +version = "1.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7655c9839580ee829dfacba1d1278c2b7883e50a277ff7541299489d6bdfdc45" + [[package]] name = "js-sys" version = "0.3.72" @@ -189,6 +256,12 @@ version = "0.2.158" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439" +[[package]] +name = "linux-raw-sys" +version = "0.4.15" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d26c52dbd32dccf2d10cac7725f8eae5296885fb5703b261f7d0a0739ec807ab" + [[package]] name = "log" version = "0.4.22" @@ -210,6 +283,45 @@ dependencies = [ "autocfg", ] +[[package]] +name = "miette" +version = "7.6.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5f98efec8807c63c752b5bd61f862c165c115b0a35685bdcfd9238c7aeb592b7" +dependencies = [ + "backtrace", + "backtrace-ext", + "cfg-if", + "miette-derive", + "owo-colors", + "supports-color", + "supports-hyperlinks", + "supports-unicode", + "terminal_size", + "textwrap", + "unicode-width 0.1.14", +] + +[[package]] +name = "miette-derive" +version = "7.6.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "db5b29714e950dbb20d5e6f74f9dcec4edbcc1067bb7f8ed198c097b8c1a818b" +dependencies = [ + "proc-macro2", + "quote", + "syn", +] + +[[package]] +name = "miniz_oxide" +version = "0.8.9" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316" +dependencies = [ + "adler2", +] + [[package]] name = "num-traits" version = "0.2.19" @@ -219,12 +331,27 @@ dependencies = [ "autocfg", ] +[[package]] +name = "object" +version = "0.36.7" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "62948e14d923ea95ea2c7c86c71013138b66525b86bdc08d2dcc262bdb497b87" +dependencies = [ + "memchr", +] + [[package]] name = "once_cell" version = "1.19.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92" +[[package]] +name = "owo-colors" +version = "4.2.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "48dd4f4a2c8405440fd0462561f0e5806bd0f77e86f51c761481bdd4018b545e" + [[package]] name = "portable-atomic" version = "1.7.0" @@ -312,6 +439,12 @@ dependencies = [ "proc-macro2", ] +[[package]] +name = "rustc-demangle" +version = "0.1.25" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "989e6739f80c4ad5b13e0fd7fe89531180375b18520cc8c82080e4dc4035b84f" + [[package]] name = "rustc-hash" version = "1.1.0" @@ -331,10 +464,24 @@ dependencies = [ "chrono", "fluent", "fluent-bundle", + "miette", "pyo3", "unic-langid", ] +[[package]] +name = "rustix" +version = "0.38.37" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811" +dependencies = [ + "bitflags", + "errno", + "libc", + "linux-raw-sys", + "windows-sys 0.52.0", +] + [[package]] name = "self_cell" version = "1.2.0" @@ -353,6 +500,27 @@ version = "1.13.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67" +[[package]] +name = "supports-color" +version = "3.0.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c64fc7232dd8d2e4ac5ce4ef302b1d81e0b80d055b9d77c7c4f51f6aa4c867d6" +dependencies = [ + "is_ci", +] + +[[package]] +name = "supports-hyperlinks" +version = "3.1.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "804f44ed3c63152de6a9f90acbea1a110441de43006ea51bcce8f436196a288b" + +[[package]] +name = "supports-unicode" +version = "3.0.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "b7401a30af6cb5818bb64852270bb722533397edcfc7344954a38f420819ece2" + [[package]] name = "syn" version = "2.0.87" @@ -370,6 +538,26 @@ version = "0.13.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e502f78cdbb8ba4718f566c418c52bc729126ffd16baee5baa718cf25dd5a69a" +[[package]] +name = "terminal_size" +version = "0.4.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5352447f921fda68cf61b4101566c0bdb5104eff6804d0678e5227580ab6a4e9" +dependencies = [ + "rustix", + "windows-sys 0.59.0", +] + +[[package]] +name = "textwrap" +version = "0.16.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c13547615a44dc9c452a8a534638acdf07120d4b6847c8178705da06306a3057" +dependencies = [ + "unicode-linebreak", + "unicode-width 0.2.1", +] + [[package]] name = "thiserror" version = "2.0.12" @@ -433,6 +621,24 @@ version = "1.0.12" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b" +[[package]] +name = "unicode-linebreak" +version = "0.1.5" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "3b09c83c3c29d37506a3e260c08c03743a6bb66a9cd432c6934ab501a190571f" + +[[package]] +name = "unicode-width" +version = "0.1.14" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af" + +[[package]] +name = "unicode-width" +version = "0.2.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c" + [[package]] name = "unindent" version = "0.2.3" @@ -500,7 +706,7 @@ version = "0.52.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9" dependencies = [ - "windows-targets", + "windows-targets 0.52.6", ] [[package]] @@ -509,20 +715,64 @@ version = "0.1.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a" +[[package]] +name = "windows-sys" +version = "0.52.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d" +dependencies = [ + "windows-targets 0.52.6", +] + +[[package]] +name = "windows-sys" +version = "0.59.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b" +dependencies = [ + "windows-targets 0.52.6", +] + +[[package]] +name = "windows-sys" +version = "0.60.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb" +dependencies = [ + "windows-targets 0.53.3", +] + [[package]] name = "windows-targets" version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973" dependencies = [ - "windows_aarch64_gnullvm", - "windows_aarch64_msvc", - "windows_i686_gnu", - "windows_i686_gnullvm", - "windows_i686_msvc", - "windows_x86_64_gnu", - "windows_x86_64_gnullvm", - "windows_x86_64_msvc", + "windows_aarch64_gnullvm 0.52.6", + "windows_aarch64_msvc 0.52.6", + "windows_i686_gnu 0.52.6", + "windows_i686_gnullvm 0.52.6", + "windows_i686_msvc 0.52.6", + "windows_x86_64_gnu 0.52.6", + "windows_x86_64_gnullvm 0.52.6", + "windows_x86_64_msvc 0.52.6", +] + +[[package]] +name = "windows-targets" +version = "0.53.3" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d5fe6031c4041849d7c496a8ded650796e7b6ecc19df1a431c1a363342e5dc91" +dependencies = [ + "windows-link", + "windows_aarch64_gnullvm 0.53.0", + "windows_aarch64_msvc 0.53.0", + "windows_i686_gnu 0.53.0", + "windows_i686_gnullvm 0.53.0", + "windows_i686_msvc 0.53.0", + "windows_x86_64_gnu 0.53.0", + "windows_x86_64_gnullvm 0.53.0", + "windows_x86_64_msvc 0.53.0", ] [[package]] @@ -531,48 +781,96 @@ version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3" +[[package]] +name = "windows_aarch64_gnullvm" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "86b8d5f90ddd19cb4a147a5fa63ca848db3df085e25fee3cc10b39b6eebae764" + [[package]] name = "windows_aarch64_msvc" version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469" +[[package]] +name = "windows_aarch64_msvc" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c7651a1f62a11b8cbd5e0d42526e55f2c99886c77e007179efff86c2b137e66c" + [[package]] name = "windows_i686_gnu" version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b" +[[package]] +name = "windows_i686_gnu" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "c1dc67659d35f387f5f6c479dc4e28f1d4bb90ddd1a5d3da2e5d97b42d6272c3" + [[package]] name = "windows_i686_gnullvm" version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66" +[[package]] +name = "windows_i686_gnullvm" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = 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"registry+https://github.com/rust-lang/crates.io-index" checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d" +[[package]] +name = "windows_x86_64_gnullvm" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "0a6e035dd0599267ce1ee132e51c27dd29437f63325753051e71dd9e42406c57" + [[package]] name = "windows_x86_64_msvc" version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec" +[[package]] +name = "windows_x86_64_msvc" +version = "0.53.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486" + [[package]] name = "zerofrom" version = "0.1.6" diff --git a/Cargo.toml b/Cargo.toml index 92176cb..2eb6bd9 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -14,3 +14,4 @@ fluent = "0.17.0" unic-langid = "0.9.6" fluent-bundle = "0.16.0" chrono = "0.4.41" +miette = { version = "7.6.0", features = ["fancy"] } diff --git a/src/lib.rs b/src/lib.rs index ea2bf12..194f518 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -2,6 +2,7 @@ use chrono::NaiveDate; use fluent::FluentArgs; use fluent_bundle::FluentResource; use fluent_bundle::concurrent::FluentBundle; +use miette::{LabeledSpan, miette}; use pyo3::exceptions::{PyFileNotFoundError, PyTypeError, PyValueError}; use pyo3::prelude::*; use pyo3::types::{PyDate, PyDict, PyInt, PyList, PyString}; @@ -50,10 +51,14 @@ mod rustfluent { let resource = match FluentResource::try_new(contents) { Ok(resource) => resource, - Err(_) if strict => { - return Err(ParserError::new_err(format!( - "Error when parsing {file_path}." - ))); + Err((resource, errors)) if strict => { + let mut labels = Vec::with_capacity(errors.len()); + for error in errors { + labels.push(LabeledSpan::at(error.pos, format!("{}", error.kind))) + } + let error = miette!(labels = labels, "Error when parsing {file_path}",) + .with_source_code(resource.source().to_string()); + return Err(ParserError::new_err(format!("{error:?}"))); } Err((resource, _errors)) => resource, }; diff --git a/tests/test_python_interface.py b/tests/test_python_interface.py index 03be29d..951d877 100644 --- a/tests/test_python_interface.py +++ b/tests/test_python_interface.py @@ -1,6 +1,5 @@ #!/usr/bin/env python import pathlib -import re from datetime import datetime import pytest @@ -175,9 +174,31 @@ def test_parses_other_parts_of_file_that_contains_errors_in_non_strict_mode( def test_raises_parser_error_on_file_that_contains_errors_in_strict_mode(): filename = str(data_dir / "errors.ftl") - with pytest.raises(fluent.ParserError, match=re.escape(f"Error when parsing {filename}.")): + + with pytest.raises(fluent.ParserError) as exc_info: fluent.Bundle("fr", [filename], strict=True) + message = str(exc_info.value) + + # Recombine first line if it was too long + lines = message.split("\n") + if lines[1].endswith(".ftl"): + lines = [(lines[0] + lines[1]).replace(" │ ", ""), *lines[2:]] + message = "\n".join(lines) + # End recombination + + expected = f"""\ + × Error when parsing {filename} + ╭─[1:16] + 1 │ invalid-message + · ┬ + · ╰── Expected a token starting with "=" + 2 │ + 3 │ valid-message = I'm valid. + ╰──── +""" + assert message == expected + def test_parser_error_str(): assert str(fluent.ParserError) == ""