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Fixed inference on String and Symbol causing invalidations in show.jl #44091

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Merged
merged 2 commits into from
Feb 10, 2022
Merged

Fixed inference on String and Symbol causing invalidations in show.jl #44091

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4e00ac7
Fixed inference on String and Symbol causing invalidations in show.jl
louisponet Feb 9, 2022
dd70555
Ommitted unnecessary annotations of scalar item
louisponet Feb 9, 2022
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10 changes: 5 additions & 5 deletions base/show.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -1420,7 +1420,7 @@ julia> Meta.ispostfixoperator(Symbol("'")), Meta.ispostfixoperator(Symbol("'ᵀ"
```
"""
function ispostfixoperator(s::Union{Symbol,AbstractString})
s = String(s)
s = String(s)::String
return startswith(s, '\'') && all(is_op_suffix_char, SubString(s, 2))
end

Expand Down Expand Up @@ -1778,7 +1778,7 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int, quote_level::In
# dot (i.e. "x.y"), but not compact broadcast exps
if head === :(.) && (nargs != 2 || !is_expr(args[2], :tuple))
# standalone .op
if nargs == 1 && args[1] isa Symbol && isoperator(args[1])
if nargs == 1 && args[1] isa Symbol && isoperator(args[1]::Symbol)
print(io, "(.", args[1], ")")
elseif nargs == 2 && is_quoted(args[2])
item = args[1]
Expand Down Expand Up @@ -1867,10 +1867,10 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int, quote_level::In
elseif (head === Symbol("'") && nargs == 1) || (
# ' with unicode suffix is a call expression
head === :call && nargs == 2 && args[1] isa Symbol &&
ispostfixoperator(args[1]) && args[1] !== Symbol("'")
ispostfixoperator(args[1]::Symbol) && args[1]::Symbol !== Symbol("'")
)
op, arg1 = head === Symbol("'") ? (head, args[1]) : (args[1], args[2])
if isa(arg1, Expr) || (isa(arg1, Symbol) && isoperator(arg1))
if isa(arg1, Expr) || (isa(arg1, Symbol) && isoperator(arg1::Symbol))
show_enclosed_list(io, '(', [arg1::Union{Expr, Symbol}], ", ", ')', indent, 0)
else
show_unquoted(io, arg1, indent, 0, quote_level)
Expand Down Expand Up @@ -1918,7 +1918,7 @@ function show_unquoted(io::IO, ex::Expr, indent::Int, prec::Int, quote_level::In
elseif func_prec > 0 # is a binary operator
na = length(func_args)
if (na == 2 || (na > 2 && isa(func, Symbol) && func in (:+, :++, :*)) || (na == 3 && func === :(:))) &&
all(!isa(a, Expr) || a.head !== :... for a in func_args)
all(a -> !isa(a, Expr) || a.head !== :..., func_args)
sep = func === :(:) ? "$func" : " $func "

if func_prec <= prec
Expand Down