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Low-provenance Expr->SyntaxTree conversion #22

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Merged
merged 5 commits into from
Aug 15, 2025
Merged

Low-provenance Expr->SyntaxTree conversion #22

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0b34971
Change `~` function to use `≈`
mlechu Aug 5, 2025
f1eebc1
Low-provenance `Expr`->`SyntaxTree` conversion
mlechu Jun 27, 2025
b2cb3e2
Some cleanup, and support `Expr(:softscope)`
mlechu Aug 6, 2025
41f1725
Suggestions from code review
mlechu Aug 15, 2025
777f535
Fix typo
mlechu Aug 15, 2025
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1 change: 1 addition & 0 deletions src/JuliaLowering.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ _include("runtime.jl")
_include("syntax_macros.jl")

_include("eval.jl")
_include("compat.jl")

function __init__()
_register_kinds()
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7 changes: 5 additions & 2 deletions src/ast.jl
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Expand Up @@ -498,17 +498,20 @@ end
# the middle of a pass.
const CompileHints = Base.ImmutableDict{Symbol,Any}

function setmeta(ex::SyntaxTree; kws...)
function setmeta!(ex::SyntaxTree; kws...)
@assert length(kws) == 1 # todo relax later ?
key = first(keys(kws))
value = first(values(kws))
meta = begin
m = get(ex, :meta, nothing)
isnothing(m) ? CompileHints(key, value) : CompileHints(m, key, value)
end
setattr(ex; meta=meta)
setattr!(ex; meta=meta)
ex
end

setmeta(ex::SyntaxTree; kws...) = setmeta!(copy_node(ex); kws...)

function getmeta(ex::SyntaxTree, name::Symbol, default)
meta = get(ex, :meta, nothing)
isnothing(meta) ? default : get(meta, name, default)
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