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feat: add decoding for individual trace steps #157

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merged 4 commits into from
Jul 2, 2024

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klkvr
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@klkvr klkvr commented Jul 1, 2024

ref foundry-rs/foundry#8222
ref foundry-rs/foundry#8198

Adds structs and extends TraceWriter to support formatting of decoded trace steps. Currently two decoding formats are supported:

  • Internal calls. Similar to a decoded call trace, decoded internal function invocation which spans over multiple steps. Kept as decoded function name, inputs, outputs and index of the last step.
  • Arbitrary strings. This might be useful for formatting decoded opcodes (e.g. adding ├─ [sload] <slot> to trace. It might make sense to extend it to something more configurable once we start implementing this

/// Represents a decoded internal function call.
#[derive(Clone, Debug, PartialEq, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct DecodedInternalCall {
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maybe worth also adding an optional style field?

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@klkvr klkvr Jul 1, 2024

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we don't separate contract name and function name for internal calls, so I think func_name can be styled directly?

I think this could be useful, though not sure how to deal with serde for it

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Can be a follow-up where we add it to other structs as well

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lgtm,

pending @DaniPopes

@mattsse mattsse merged commit 5679165 into paradigmxyz:main Jul 2, 2024
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3 participants