update LTS, drop v1.0 support

Author: aviatesk

.github/workflows/CI.yml

@@ -13,8 +13,8 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.0'
-          - '1'
+          - '1.6'     # LTS
+          - '1'       # current stable
           - 'nightly'
         os:
           - ubuntu-latest

src/commands.jl

@@ -218,8 +218,7 @@ function maybe_step_through_wrapper!(@nospecialize(recurse), frame::Frame)
     length(stmts) < 2 && return frame
     last = stmts[end-1]
     isexpr(last, :(=)) && (last = last.args[2])
-    comp = VERSION < v"1.4.0-DEV.215" ? startswith : endswith
-    is_kw = isa(scope, Method) && comp(String(Base.unwrap_unionall(Base.unwrap_unionall(scope.sig).parameters[1]).name.name), "#kw")
+    is_kw = isa(scope, Method) && endswith(String(Base.unwrap_unionall(Base.unwrap_unionall(scope.sig).parameters[1]).name.name), "#kw")
     has_selfarg = isexpr(last, :call) && any(isequal(SlotNumber(1)), last.args)
     issplatcall, _callee = unpack_splatcall(last)
     if is_kw || has_selfarg || (issplatcall && is_bodyfunc(_callee))

src/construct.jl

@@ -94,22 +94,6 @@ function get_source(g::GeneratedFunctionStub, env)
     return eval(b)
 end
 
-function copy_codeinfo(code::CodeInfo)
-    @static if VERSION < v"1.1.0-DEV.762"
-        newcode = ccall(:jl_new_struct_uninit, Any, (Any,), CodeInfo)::CodeInfo
-        for (i, name) in enumerate(fieldnames(CodeInfo))
-            if isdefined(code, name)
-                val = getfield(code, name)
-                ccall(:jl_set_nth_field, Cvoid, (Any, Csize_t, Any), newcode, i-1, val===nothing || isa(val, Union{Type, Method}) ? val : copy(val))
-            end
-        end
-        return newcode
-    else
-        # Inline this when support for VERSION above is dropped
-        return copy(code)
-    end
-end
-
 """
     frun, allargs = prepare_args(fcall, fargs, kwargs)
 
@@ -148,13 +132,6 @@ function prepare_args(@nospecialize(f), allargs, kwargs)
     return f, allargs
 end
 
-if VERSION < v"1.2-" || !isdefined(Core.Compiler, :specialize_method)
-    specialize_method(method::Method, @nospecialize(atypes), sparams::SimpleVector) =
-        Core.Compiler.code_for_method(method, atypes, sparams, typemax(UInt))
-else
-    const specialize_method = Core.Compiler.specialize_method
-end
-
 function prepare_framecode(method::Method, @nospecialize(argtypes); enter_generated=false)
     sig = method.sig
     if (method.module ∈ compiled_modules || method ∈ compiled_methods) && !(method ∈ interpreted_methods)
@@ -174,7 +151,7 @@ function prepare_framecode(method::Method, @nospecialize(argtypes); enter_genera
             # If we're stepping into a staged function, we need to use
             # the specialization, rather than stepping through the
             # unspecialized method.
-            code = Core.Compiler.get_staged(specialize_method(method, argtypes, lenv))
+            code = Core.Compiler.get_staged(Core.Compiler.specialize_method(method, argtypes, lenv))
             code === nothing && return nothing
             generator = false
         else
@@ -282,7 +259,7 @@ end
 
 function prepare_framedata(framecode, argvals::Vector{Any}, lenv::SimpleVector=empty_svec, caller_will_catch_err::Bool=false)
     src = framecode.src
-    slotnames = src.slotnames::SlotNamesType
+    slotnames = src.slotnames
     ssavt = src.ssavaluetypes
     ng, ns = isa(ssavt, Int) ? ssavt : length(ssavt::Vector{Any}), length(src.slotflags)
     if length(junk_framedata) > 0
@@ -514,15 +491,6 @@ function queuenext!(iter::ExprSplitter)
         ex = ex.args[3]::Expr
         push_modex!(iter, mod, ex)
         return queuenext!(iter)
-    elseif VERSION < v"1.2" && is_function_def(ex)
-        # Newer Julia versions insert a LineNumberNode between statements, but at least Julia 1.0 does not.
-        # Scan the function body for a LNN
-        lnn = firstline(ex)
-        if isa(lnn, LineNumberNode)
-            if iter.lnn === nothing || iter.lnn.line < lnn.line
-                iter.lnn = LineNumberNode(lnn.line-1, lnn.file)
-            end
-        end
     elseif head === :macrocall
         iter.lnn = ex.args[2]::LineNumberNode
     elseif head === :block || head === :toplevel

src/interpret.jl

@@ -329,15 +329,13 @@ function evaluate_structtype(@nospecialize(recurse), frame, node)
         end
     end
     Core.eval(mod, newstructexpr)
-    VERSION < v"1.2.0-DEV.239" && set_structtype_const(mod, name)
 end
 
 function evaluate_abstracttype(@nospecialize(recurse), frame, node)
     name, mod = structname(frame, node)
     params = lookup_or_eval(recurse, frame, node.args[2])::SimpleVector
     supertype = lookup_or_eval(recurse, frame, node.args[3])::Type
     Core.eval(mod, Expr(:abstract_type, name, params, supertype))
-    VERSION < v"1.2.0-DEV.239" && set_structtype_const(mod, name)
 end
 
 function evaluate_primitivetype(@nospecialize(recurse), frame, node)
@@ -346,7 +344,6 @@ function evaluate_primitivetype(@nospecialize(recurse), frame, node)
     nbits = node.args[3]::Int
     supertype = lookup_or_eval(recurse, frame, node.args[4])::Type
     Core.eval(mod, Expr(:primitive_type, name, params, nbits, supertype))
-    VERSION < v"1.2.0-DEV.239" && set_structtype_const(mod, name)
 end
 
 function do_assignment!(frame, @nospecialize(lhs), @nospecialize(rhs))
@@ -407,7 +404,7 @@ function eval_rhs(@nospecialize(recurse), frame, node::Expr)
         return length(frame.framedata.exception_frames)
     elseif head === :boundscheck
         return true
-    elseif head === :meta || head === :inbounds || head == (@static VERSION >= v"1.2.0-DEV.462" ? :loopinfo : :simdloop) ||
+    elseif head === :meta || head === :inbounds || head == :loopinfo ||
            head === :gc_preserve_begin || head === :gc_preserve_end
         return nothing
     elseif head === :method && length(node.args) == 1
@@ -517,9 +514,7 @@ function step_expr!(@nospecialize(recurse), frame, @nospecialize(node), istoplev
                     else
                         mod, name = moduleof(frame), g::Symbol
                     end
-                    if VERSION >= v"1.2.0-DEV.239"  # depends on https://github.com/JuliaLang/julia/pull/30893
-                        Core.eval(mod, Expr(:const, name))
-                    end
+                    Core.eval(mod, Expr(:const, name))
                 elseif node.head === :thunk
                     newframe = Frame(moduleof(frame), node.args[1])
                     if isa(recurse, Compiled)

src/optimize.jl

@@ -133,9 +133,6 @@ function lookup_global_refs!(ex::Expr)
     return nothing
 end
 
-# See https://github.com/JuliaLang/julia/pull/32800
-const foreigncall_version = VERSION < v"1.3.0-alpha.108" ? 0 : 1
-
 """
     optimize!(code::CodeInfo, mod::Module)
 
@@ -190,7 +187,7 @@ function optimize!(code::CodeInfo, scope)
                     append!(delete_idxs, delete_idx)
                 end
             elseif stmt.head === :foreigncall && scope isa Method
-                nargs = foreigncall_version == 0 ? stmt.args[5]::Int : length(stmt.args[3]::SimpleVector)
+                nargs = length(stmt.args[3]::SimpleVector)
                 # Call via `invokelatest` to avoid compiling it until we need it
                 delete_idx = Base.invokelatest(build_compiled_call!, stmt, :ccall, code, idx, nargs, sparams, evalmod)
                 if delete_idx !== nothing
@@ -365,7 +362,7 @@ function build_compiled_call!(stmt::Expr, fcall, code, idx, nargs::Int, sparams:
             push!(wrapargs, :(::$TVal{$sparam}))
         end
         methname = gensym("compiledcall")
-        calling_convention = stmt.args[foreigncall_version == 0 ? 4 : 5]
+        calling_convention = stmt.args[5]
         if calling_convention === :(:llvmcall)
             def = :(
                 function $methname($(wrapargs...)) where {$(sparams...)}

src/packagedef.jl

@@ -18,18 +18,9 @@ module CompiledCalls
 # This module is for handling intrinsics that must be compiled (llvmcall) as well as ccalls
 end
 
-# "Backport" of https://github.com/JuliaLang/julia/pull/31536
-if VERSION < v"1.2.0-DEV.572"
-    Base.convert(::Type{Some{T}}, x::Some{T}) where {T} = x
-end
-
-const SlotNamesType = VERSION < v"1.2.0-DEV.606" ? Vector{Any} : Vector{Symbol}
+const SlotNamesType = Vector{Symbol}
 
-@static if VERSION < v"1.3.0-DEV.179"
-    const append_any = Base.append_any
-else
-    append_any(@nospecialize x...) = append!([], Core.svec((x...)...))
-end
+append_any(@nospecialize x...) = append!([], Core.svec((x...)...))
 
 if isdefined(Base, :mapany)
     const mapany = Base.mapany

src/precompile.jl

@@ -36,7 +36,6 @@ function _precompile_()
     @assert precompile(Tuple{typeof(extract_args), Module, Expr})
     @assert precompile(Tuple{typeof(enter_call), Int, Int})
     @assert precompile(Tuple{typeof(enter_call_expr), Expr})
-    @assert precompile(Tuple{typeof(copy_codeinfo), Core.CodeInfo})
     @assert precompile(Tuple{typeof(optimize!), Core.CodeInfo, Module})
     @assert precompile(Tuple{typeof(optimize!), Core.CodeInfo, Method})
     @assert precompile(Tuple{typeof(build_compiled_call!), Expr, Symbol, Core.CodeInfo, Int, Int, Vector{Symbol}, Module})
@@ -48,9 +47,7 @@ function _precompile_()
     @assert precompile(Tuple{typeof(find_used), Core.CodeInfo})
     @assert precompile(Tuple{typeof(do_assignment!), Frame, Any, Any})
     @assert precompile(Tuple{typeof(pc_expr), Frame})
-    if VERSION >= v"1.3.0-DEV.179"  # there are different definitions depending on Julia version
-        @assert precompile(Tuple{typeof(append_any), Any})
-        @assert precompile(Tuple{typeof(append_any), Any, Vararg{Any, 100}})
-    end
+    @assert precompile(Tuple{typeof(append_any), Any})
+    @assert precompile(Tuple{typeof(append_any), Any, Vararg{Any, 100}})
     @assert precompile(Tuple{typeof(whichtt), Any})
 end

src/types.jl

@@ -112,9 +112,9 @@ function is_breakpoint_expr(ex::Expr)
 end
 function FrameCode(scope, src::CodeInfo; generator=false, optimize=true)
     if optimize
-        src, methodtables = optimize!(copy_codeinfo(src), scope)
+        src, methodtables = optimize!(copy(src), scope)
     else
-        src = replace_coretypes!(copy_codeinfo(src))
+        src = replace_coretypes!(copy(src))
         methodtables = Vector{Union{Compiled,DispatchableMethod}}(undef, length(src.code))
     end
     breakpoints = Vector{BreakpointState}(undef, length(src.code))

src/utils.jl

@@ -199,20 +199,11 @@ is_call_or_return(@nospecialize(node)) = is_call(node) || is_return(node)
 
 is_dummy(bpref::BreakpointRef) = bpref.stmtidx == 0 && bpref.err === nothing
 
-if VERSION >= v"1.4.0-DEV.304"
-    function unpack_splatcall(stmt)
-        if isexpr(stmt, :call) && length(stmt.args) >= 3 && is_quotenode_egal(stmt.args[1], Core._apply_iterate)
-            return true, stmt.args[3]
-        end
-        return false, nothing
-    end
-else
-    function unpack_splatcall(stmt)
-        if isexpr(stmt, :call) && length(stmt.args) >= 2 && is_quotenode_egal(stmt.args[1], Core._apply)
-            return true, stmt.args[2]
-        end
-        return false, nothing
+function unpack_splatcall(stmt)
+    if isexpr(stmt, :call) && length(stmt.args) >= 3 && is_quotenode_egal(stmt.args[1], Core._apply_iterate)
+        return true, stmt.args[3]
     end
+    return false, nothing
 end
 
 function is_bodyfunc(@nospecialize(arg))
@@ -316,28 +307,10 @@ function getline(ln::Union{LineTypes,Expr})
     _getline(ln::Expr)      = ln.args[1] # assuming ln.head === :line
     return Int(_getline(ln))::Int
 end
-# work around compiler error on 1.2
-@static if v"1.2.0" <= VERSION < v"1.3"
-    getfile(ln) = begin
-        path = if isexpr(ln, :line)
-            String(ln.args[2])
-        else
-            try
-                file = String(ln.file)
-                isfile(file)
-                file
-            catch err
-                ""
-            end
-        end
-        CodeTracking.maybe_fixup_stdlib_path(path)
-    end
-else
-    function getfile(ln::Union{LineTypes,Expr})
-        _getfile(ln::LineTypes) = ln.file::Symbol
-        _getfile(ln::Expr)      = ln.args[2]::Symbol # assuming ln.head === :line
-        return CodeTracking.maybe_fixup_stdlib_path(String(_getfile(ln)))
-    end
+function getfile(ln::Union{LineTypes,Expr})
+    _getfile(ln::LineTypes) = ln.file::Symbol
+    _getfile(ln::Expr)      = ln.args[2]::Symbol # assuming ln.head === :line
+    return CodeTracking.maybe_fixup_stdlib_path(String(_getfile(ln)))
 end
 
 function firstline(ex::Expr)
@@ -448,7 +421,7 @@ function framecode_lines(src::CodeInfo)
     buf = IOBuffer()
     if isdefined(Base.IRShow, :show_ir_stmt)
         lines = String[]
-        src = replace_coretypes!(copy_codeinfo(src); rev=true)
+        src = replace_coretypes!(copy(src); rev=true)
         reverse_lookup_globalref!(src.code)
         io = IOContext(buf, :displaysize => displaysize(stdout),
                        :SOURCE_SLOTNAMES => Base.sourceinfo_slotnames(src))
@@ -485,7 +458,7 @@ function print_framecode(io::IO, framecode::FrameCode; pc=0, range=1:nstatements
     offset = lineoffset(framecode)
     ndline = isempty(lt) ? 0 : ndigits(getline(lt[end]) + offset)
     nullline = " "^ndline
-    src = copy_codeinfo(framecode.src)
+    src = copy(framecode.src)
     replace_coretypes!(src; rev=true)
     code = framecode_lines(src)
     isfirst = true
@@ -515,7 +488,7 @@ function locals(frame::Frame)
     vars, var_counter = Variable[], Int[]
     varlookup = Dict{Symbol,Int}()
     data, code = frame.framedata, frame.framecode
-    slotnames = code.src.slotnames::SlotNamesType
+    slotnames = code.src.slotnames
     for (sym, counter, val) in zip(slotnames, data.last_reference, data.locals)
         counter == 0 && continue
         val = something(val)
@@ -702,7 +675,7 @@ function Base.StackTraces.StackFrame(frame::Frame)
         atypes = Tuple{mapany(_Typeof, method_args)...}
         sig = method.sig
         sparams = Core.svec(frame.framedata.sparams...)
-        mi = specialize_method(method, atypes, sparams)
+        mi = Core.Compiler.specialize_method(method, atypes, sparams)
         fname = frame.framecode.scope.name
     else
         mi = frame.framecode.src

test/breakpoints.jl

@@ -408,11 +408,7 @@ empty!(breakpoint_update_hooks)
         # breakpoint in top-level line
         mod, ex = exprs[1]
         frame = Frame(mod, ex)
-        if VERSION < v"1.2"
-            @test_broken JuliaInterpreter.shouldbreak(frame, frame.pc)
-        else
-            @test JuliaInterpreter.shouldbreak(frame, frame.pc)
-        end
+        @test JuliaInterpreter.shouldbreak(frame, frame.pc)
         ret = JuliaInterpreter.finish_and_return!(frame, true)
         @test ret === 2
 

test/eval_code.jl

@@ -74,16 +74,14 @@ fr, bp = debug_command(fr, :c)
 eval_code(fr, "non_accessible_variable = 5.0")
 @test eval_code(fr, "non_accessible_variable") == 5.0
 
-if VERSION >= v"1.4" # for var"" syntax
-    # Evaluating SSAValues
-    f(x) = x^2
-    frame = JuliaInterpreter.enter_call(f, 5)
-    JuliaInterpreter.step_expr!(frame)
-    JuliaInterpreter.step_expr!(frame)
-    # This could change with changes to Julia lowering
-    @test eval_code(frame, "var\"%2\"") == Val(2)
-    @test eval_code(frame, "var\"@_1\"") == f
-end
+# Evaluating SSAValues
+f(x) = x^2
+frame = JuliaInterpreter.enter_call(f, 5)
+JuliaInterpreter.step_expr!(frame)
+JuliaInterpreter.step_expr!(frame)
+# This could change with changes to Julia lowering
+@test eval_code(frame, "var\"%2\"") == Val(2)
+@test eval_code(frame, "var\"@_1\"") == f
 
 function fun(;output=:sym)
    x = 5

test/interpret.jl

@@ -746,7 +746,7 @@ end
     @test length(JuliaInterpreter.locals(frame)) > 0
 end
 
-@static if VERSION >= v"1.5" && Sys.islinux()
+@static if Sys.islinux()
     @testset "@ccall" begin
         f(s) = @ccall strlen(s::Cstring)::Csize_t
         @test @interpret(f("asd")) == 3

test/runtests.jl

@@ -16,7 +16,7 @@ Core.eval(JuliaInterpreter, :(debug_recycle() = true))
     include("limits.jl")
     include("eval_code.jl")
     include("breakpoints.jl")
-    VERSION >= v"1.8.0-DEV.370" && include("code_coverage/code_coverage.jl")
+    @static VERSION >= v"1.8.0-DEV.370" && include("code_coverage/code_coverage.jl")
     remove()
     include("debug.jl")
 end