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2021-01-14 r/2108 feat(tazjin/rlox): Implement early return from functionsVincent Ambo1-0/+12
In the book this is implemented via exceptions as control flow, and I'm sticking somewhat closely to that by doing it via an error variant. Change-Id: I9c7b84d6bb28265ab94021ea681df84f16a53da2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2395 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2021-01-14 r/2102 refactor(tazjin/rlox): Add helper method for parsing identifiersVincent Ambo1-1/+0
Change-Id: I9a45f823f16919319d6135225d5bd53ed54c2530 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2388 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2021-01-14 r/2096 feat(tazjin/rlox): Implement function call evaluationVincent Ambo1-0/+1
Change-Id: I6767c3a1a9654475b4066415f8c026b9c5b5907a Reviewed-on: https://cl.tvl.fyi/c/depot/+/2382 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2021-01-06 r/2059 feat(tazjin/rlox): Parse if statementsVincent Ambo1-0/+1
Change-Id: I2352d75a3f02d65a5a2d04fb2cc4daa50f11ca1e Reviewed-on: https://cl.tvl.fyi/c/depot/+/2321 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-12-31 r/2037 feat(tazjin/rlox): Implement block parsingVincent Ambo1-0/+1
Change-Id: I1b7235ed71fa36120984a36f22cd564f59581352 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2303 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-31 r/2033 feat(tazjin/rlox): Implement mutable variable assignmentVincent Ambo1-0/+1
Change-Id: I56db10a5ac26958ae27a8d4c8fa7b8f8285bc7e1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2299 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-31 r/2031 feat(tazjin/rlox): Add global variable support in interpreterVincent Ambo1-0/+2
Change-Id: I4134cf78dc3934a517ad0c848ae1d3729abaf882 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2297 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-12-22 r/2027 feat(tazjin/rlox): Parse variable assignment & accessVincent Ambo1-0/+1
Change-Id: I9894d76716d739e85a4757d9e658f884228e7f52 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2290 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-22 r/2024 feat(tazjin/rlox): Add support for statementsVincent Ambo1-0/+1
First part of https://craftinginterpreters.com/statements-and-state.html Supports print statements, as well as evaluation for the sake of it (i.e. future side-effects). Change-Id: Ic6653b568f98d6cfe3f297615b7113c0ba1d9a70 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2287 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-20 r/2019 feat(tazjin/rlox): Add runtime type error handlingVincent Ambo1-0/+1
Change-Id: I0d52bc9ff5be6421cb4131265ed28ce1ea7d8ff3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2282 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-06 r/1991 feat(tazjin/rlox): Synchronise parser state after errorsVincent Ambo1-0/+1
This lets the parser collect multiple errors instead of returning after the first one, with some optimistic synchronisation after encountering something that looks wonky. Change-Id: Ie9d0ce8de9dcc7a3d1e7aa2abe15f74cab0ab96b Reviewed-on: https://cl.tvl.fyi/c/depot/+/2236 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-12-06 r/1989 feat(tazjin/rlox): Implement parsing of parenthesised expressionsVincent Ambo1-0/+1
Change-Id: I0e6bd71fd787b719104ef93fc52df4090dc415b9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2234 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-11-28 r/1956 refactor(tazjin/rlox): Thread through scanner errorsVincent Ambo1-2/+2
... and show them to users, very crudely. Change-Id: If4491b14db1124313f6ab7e5fbfdce9fea501d11 Reviewed-on: https://cl.tvl.fyi/c/depot/+/2193 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-11-28 r/1953 feat(tazjin/rlox): Implement string scanningVincent Ambo1-0/+1
Note that Lox does not support escapes, and I don't care about that. Change-Id: Ie848cbc1164c4b005b15e29aad8fe723aaa68d1b Reviewed-on: https://cl.tvl.fyi/c/depot/+/2190 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-11-23 r/1914 feat(tazjin/rlox): Implement single-character scanningVincent Ambo1-0/+14
... still not that interesting, but at this point slightly divergent from the book: The book embraces mutability for interpreter state, initially for tracking whether an error condition has occured. I avoid this by instead defining an error type and collecting the error values, to be handled later on. Notes: So far nothing special, but this is just the beginning of the book. I like the style it is written in and it has pointed to some interesting resources, such as a 1965 paper titled "The Next 700 Languages". Change-Id: I030b38438fec9eb55372bf547af225138908230a Reviewed-on: https://cl.tvl.fyi/c/depot/+/2144 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI