swh:1:snp:a72e953ecd624a7df6e6196bbdd05851996c5e40
Tip revision: 3c9d75391c72d7c32eea75ff187ce77b2d5effc8 authored by Tony Kelman on 19 September 2016, 18:14:48 UTC
Tag v0.5.0
Tag v0.5.0
Tip revision: 3c9d753
parse.jl
# This file is a part of Julia. License is MIT: http://julialang.org/license
# tests for parser and syntax lowering
function parseall(str)
pos = start(str)
exs = []
while !done(str, pos)
ex, pos = parse(str, pos)
push!(exs, ex)
end
if length(exs) == 0
throw(ParseError("end of input"))
elseif length(exs) == 1
return exs[1]
else
return Expr(:block, exs...)
end
end
# issue #9684
let
for (ex1, ex2) in [("5.≠x", "5.!=x"),
("5.≥x", "5.>=x"),
("5.≤x", "5.<=x")]
ex1 = parse(ex1); ex2 = parse(ex2)
@test ex1.head === :call && (ex1.head === ex2.head)
@test ex1.args[2] === 5 && ex2.args[2] === 5
@test is(eval(Main, ex1.args[1]), eval(Main, ex2.args[1]))
@test ex1.args[3] === :x && (ex1.args[3] === ex2.args[3])
end
end
# issue #9704
let a = :a
@test :(try
catch $a
end) == :(try
catch a
end)
@test :(module $a end) == :(module a
end)
end
# string literals
macro test999_str(args...); args; end
@test test999"a"b == ("a","b")
@test test999"""a"""b == ("a","b")
@test test999"
a
b" == ("
a
b",)
@test test999"""
a
b""" == ("a\nb",)
# issue #5997
@test_throws ParseError parse(": x")
@test_throws ParseError parse("d[: 2]")
# issue #6770
@test_throws ParseError parse("x.3")
# issue #8763
@test_throws ParseError parse("sqrt(16)2")
@test_throws ParseError parse("x' y")
@test_throws ParseError parse("x 'y")
@test parse("x'y") == Expr(:call, :*, Expr(Symbol("'"), :x), :y)
# issue #8301
@test_throws ParseError parse("&*s")
# issue #10677
@test_throws ParseError parse("/1")
@test_throws ParseError parse("/pi")
@test parse("- = 2") == Expr(:(=), :(-), 2)
@test parse("/ = 2") == Expr(:(=), :(/), 2)
@test_throws ParseError parse("< : 2")
@test_throws ParseError parse("+ : 2")
@test_throws ParseError parse("< :2")
@test parse("+ :2") == Expr(:call, :(+), QuoteNode(2))
# issue #10900
@test_throws ParseError parse("+=")
@test_throws ParseError parse(".")
@test_throws ParseError parse("...")
# issue #10901
@test parse("/([1], 1)[1]") == :(([1] / 1)[1])
# issue #10997
@test parse(":(x.\$f[i])") == Expr(:quote,
Expr(:ref,
Expr(Symbol("."), :x,
QuoteNode(Expr(:$, :f))),
:i))
# issue #10994
@test parse("1 + #= \0 =# 2") == :(1 + 2)
# issue #10910
@test parse(":(using A)") == Expr(:quote, Expr(:using, :A))
@test parse(":(using A.b, B)") == Expr(:quote,
Expr(:toplevel,
Expr(:using, :A, :b),
Expr(:using, :B)))
@test parse(":(using A: b, c.d)") == Expr(:quote,
Expr(:toplevel,
Expr(:using, :A, :b),
Expr(:using, :A, :c, :d)))
@test parse(":(importall A)") == Expr(:quote, Expr(:importall, :A))
@test parse(":(import A)") == Expr(:quote, Expr(:import, :A))
@test parse(":(import A.b, B)") == Expr(:quote,
Expr(:toplevel,
Expr(:import, :A, :b),
Expr(:import, :B)))
@test parse(":(import A: b, c.d)") == Expr(:quote,
Expr(:toplevel,
Expr(:import, :A, :b),
Expr(:import, :A, :c, :d)))
# issue #11332
@test parse("export \$(Symbol(\"A\"))") == :(export $(Expr(:$, :(Symbol("A")))))
@test parse("export \$A") == :(export $(Expr(:$, :A)))
@test parse("using \$a.\$b") == Expr(:using, Expr(:$, :a), Expr(:$, :b))
@test parse("using \$a.\$b, \$c") == Expr(:toplevel, Expr(:using, Expr(:$, :a),
Expr(:$, :b)),
Expr(:using, Expr(:$, :c)))
@test parse("using \$a: \$b, \$c.\$d") ==
Expr(:toplevel, Expr(:using, Expr(:$, :a), Expr(:$, :b)),
Expr(:using, Expr(:$, :a), Expr(:$, :c), Expr(:$, :d)))
# fix pr #11338 and test for #11497
@test parseall("using \$\na") == Expr(:block, Expr(:using, :$), :a)
@test parseall("using \$,\na") == Expr(:toplevel, Expr(:using, :$),
Expr(:using, :a))
@test parseall("using &\na") == Expr(:block, Expr(:using, :&), :a)
@test parseall("a = &\nb") == Expr(:block, Expr(:(=), :a, :&), :b)
@test parseall("a = \$\nb") == Expr(:block, Expr(:(=), :a, :$), :b)
@test parseall(":(a = &\nb)") == Expr(:quote, Expr(:(=), :a, Expr(:&, :b)))
@test parseall(":(a = \$\nb)") == Expr(:quote, Expr(:(=), :a, Expr(:$, :b)))
# issue 11970
@test parseall("""
macro f(args...) end; @f ""
""") == Expr(:toplevel,
Expr(:macro, Expr(:call, :f, Expr(:..., :args)), Expr(:block, Expr(:line, 1, :none))),
Expr(:macrocall, Symbol("@f"), ""))
# blocks vs. tuples
@test parse("()") == Expr(:tuple)
@test parse("(;)") == Expr(:block)
@test parse("(;;;;)") == Expr(:block)
@test_throws ParseError parse("(,)")
@test_throws ParseError parse("(;,)")
@test_throws ParseError parse("(,;)")
@test parse("(x;)") == Expr(:block, :x)
@test parse("(;x)") == Expr(:tuple, Expr(:parameters, :x))
@test parse("(;x,)") == Expr(:tuple, Expr(:parameters, :x))
@test parse("(x,)") == Expr(:tuple, :x)
@test parse("(x,;)") == Expr(:tuple, :x)
@test parse("(x;y)") == Expr(:block, :x, :y)
@test parse("(x=1;y=2)") == Expr(:block, Expr(:(=), :x, 1), Expr(:(=), :y, 2))
@test parse("(x,;y)") == Expr(:tuple, Expr(:parameters, :y), :x)
@test parse("(x,;y=1)") == Expr(:tuple, Expr(:parameters, Expr(:kw, :y, 1)), :x)
@test parse("(x,a;y=1)") == Expr(:tuple, Expr(:parameters, Expr(:kw, :y, 1)), :x, :a)
@test parse("(x,a;y=1,z=2)") == Expr(:tuple, Expr(:parameters, Expr(:kw,:y,1), Expr(:kw,:z,2)), :x, :a)
@test parse("(a=1, b=2)") == Expr(:tuple, Expr(:(=), :a, 1), Expr(:(=), :b, 2))
@test_throws ParseError parse("(1 2)") # issue #15248
# integer parsing
@test is(parse(Int32,"0",36),Int32(0))
@test is(parse(Int32,"1",36),Int32(1))
@test is(parse(Int32,"9",36),Int32(9))
@test is(parse(Int32,"A",36),Int32(10))
@test is(parse(Int32,"a",36),Int32(10))
@test is(parse(Int32,"B",36),Int32(11))
@test is(parse(Int32,"b",36),Int32(11))
@test is(parse(Int32,"F",36),Int32(15))
@test is(parse(Int32,"f",36),Int32(15))
@test is(parse(Int32,"Z",36),Int32(35))
@test is(parse(Int32,"z",36),Int32(35))
@test parse(Int,"0") == 0
@test parse(Int,"-0") == 0
@test parse(Int,"1") == 1
@test parse(Int,"-1") == -1
@test parse(Int,"9") == 9
@test parse(Int,"-9") == -9
@test parse(Int,"10") == 10
@test parse(Int,"-10") == -10
@test parse(Int64,"3830974272") == 3830974272
@test parse(Int64,"-3830974272") == -3830974272
@test parse(Int,'3') == 3
@test parse(Int,'3', 8) == 3
parsebin(s) = parse(Int,s,2)
parseoct(s) = parse(Int,s,8)
parsehex(s) = parse(Int,s,16)
@test parsebin("0") == 0
@test parsebin("-0") == 0
@test parsebin("1") == 1
@test parsebin("-1") == -1
@test parsebin("10") == 2
@test parsebin("-10") == -2
@test parsebin("11") == 3
@test parsebin("-11") == -3
@test parsebin("1111000011110000111100001111") == 252645135
@test parsebin("-1111000011110000111100001111") == -252645135
@test parseoct("0") == 0
@test parseoct("-0") == 0
@test parseoct("1") == 1
@test parseoct("-1") == -1
@test parseoct("7") == 7
@test parseoct("-7") == -7
@test parseoct("10") == 8
@test parseoct("-10") == -8
@test parseoct("11") == 9
@test parseoct("-11") == -9
@test parseoct("72") == 58
@test parseoct("-72") == -58
@test parseoct("3172207320") == 434704080
@test parseoct("-3172207320") == -434704080
@test parsehex("0") == 0
@test parsehex("-0") == 0
@test parsehex("1") == 1
@test parsehex("-1") == -1
@test parsehex("9") == 9
@test parsehex("-9") == -9
@test parsehex("a") == 10
@test parsehex("-a") == -10
@test parsehex("f") == 15
@test parsehex("-f") == -15
@test parsehex("10") == 16
@test parsehex("-10") == -16
@test parsehex("0BADF00D") == 195948557
@test parsehex("-0BADF00D") == -195948557
@test parse(Int64,"BADCAB1E",16) == 3135023902
@test parse(Int64,"-BADCAB1E",16) == -3135023902
@test parse(Int64,"CafeBabe",16) == 3405691582
@test parse(Int64,"-CafeBabe",16) == -3405691582
@test parse(Int64,"DeadBeef",16) == 3735928559
@test parse(Int64,"-DeadBeef",16) == -3735928559
@test parse(Int,"2\n") == 2
@test parse(Int," 2 \n ") == 2
@test parse(Int," 2 ") == 2
@test parse(Int,"2 ") == 2
@test parse(Int," 2") == 2
@test parse(Int,"+2\n") == 2
@test parse(Int,"-2") == -2
@test_throws ArgumentError parse(Int," 2 \n 0")
@test_throws ArgumentError parse(Int,"2x")
@test_throws ArgumentError parse(Int,"-")
# parsing numbers with _ and .
@test parse("1_2.3_4") == 12.34
@test_throws ParseError parse("1._")
@test_throws ParseError parse("1._5")
@test_throws ParseError parse("1e.3")
@test_throws ParseError parse("1e3.")
@test parse("2e_1") == Expr(:call, :*, 2, :e_1)
# issue #17705
@test parse("2e3_") == Expr(:call, :*, 2e3, :_)
@test parse("2e-3_") == Expr(:call, :*, 2e-3, :_)
@test parse("2e3_\"x\"") == Expr(:call, :*, 2e3, Expr(:macrocall, Symbol("@__str"), "x"))
# multibyte spaces
@test parse(Int, "3\u2003\u202F") == 3
@test_throws ArgumentError parse(Int, "3\u2003\u202F,")
@test parse(Int,'a') == 10
@test_throws ArgumentError parse(Int,typemax(Char))
@test parse(Int,"1234") == 1234
@test parse(Int,"0x1234") == 0x1234
@test parse(Int,"0o1234") == 0o1234
@test parse(Int,"0b1011") == 0b1011
@test parse(Int,"-1234") == -1234
@test parse(Int,"-0x1234") == -Int(0x1234)
@test parse(Int,"-0o1234") == -Int(0o1234)
@test parse(Int,"-0b1011") == -Int(0b1011)
for T in (Int8, Int16, Int32, Int64, Int128)
@test parse(T,string(typemin(T))) == typemin(T)
@test parse(T,string(typemax(T))) == typemax(T)
@test_throws OverflowError parse(T,string(big(typemin(T))-1))
@test_throws OverflowError parse(T,string(big(typemax(T))+1))
end
for T in (UInt8,UInt16,UInt32,UInt64,UInt128)
@test parse(T,string(typemin(T))) == typemin(T)
@test parse(T,string(typemax(T))) == typemax(T)
@test_throws ArgumentError parse(T,string(big(typemin(T))-1))
@test_throws OverflowError parse(T,string(big(typemax(T))+1))
end
@test parse("1 == 2|>3") == Expr(:call, :(==), 1, Expr(:call, :(|>), 2, 3))
# issue #12501 and pr #12502
parse("""
baremodule A
"a" in b
end
""")
parse("""
baremodule A
"a"
end
""")
# issue #12626
@test parse("a .÷ 1") == Expr(:call, :.÷, :a, 1)
@test parse("a .÷= 1") == Expr(:.÷=, :a, 1)
# issue #12771
@test -(3)^2 == -9
# issue #13302
let p = parse("try
a
catch
b, c = t
end")
@test isa(p,Expr) && p.head === :try
@test p.args[2] === false
@test p.args[3].args[end] == parse("b,c = t")
end
# pr #13078
@test parse("a in b in c") == Expr(:comparison, :a, :in, :b, :in, :c)
@test parse("a||b→c&&d") == Expr(:call, :→,
Expr(Symbol("||"), :a, :b),
Expr(Symbol("&&"), :c, :d))
# issue #11988 -- normalize \r and \r\n in literal strings to \n
@test "foo\nbar" == parse("\"\"\"\r\nfoo\r\nbar\"\"\"") == parse("\"\"\"\nfoo\nbar\"\"\"") == parse("\"\"\"\rfoo\rbar\"\"\"") == parse("\"foo\r\nbar\"") == parse("\"foo\rbar\"") == parse("\"foo\nbar\"")
@test '\r' == first("\r") == first("\r\n") # still allow explicit \r
# issue #14561 - generating 0-method generic function def
let fname = :f
@test :(function $fname end) == Expr(:function, :f)
end
# issue #14977
@test parse("x = 1", 1) == (:(x = 1), 6)
@test parse("x = 1", 6) == (nothing, 6)
@test_throws BoundsError parse("x = 1", 0)
@test_throws BoundsError parse("x = 1", -1)
@test_throws BoundsError parse("x = 1", 7)
# issue #14683
@test_throws ParseError parse("'\\A\"'")
@test parse("'\"'") == parse("'\\\"'") == '"' == "\""[1] == '\42'
@test_throws ParseError parse("f(2x for x=1:10, y")
# issue #15223
call0(f) = f()
call1(f,x) = f(x)
call2(f,x,y) = f(x,y)
@test (call0() do; 42 end) == 42
@test (call1(42) do x; x+1 end) == 43
@test (call2(42,1) do x,y; x+y+1 end) == 44
# definitions using comparison syntax
let a⊂b = reduce(&, x ∈ b for x in a) && length(b)>length(a)
@test [1,2] ⊂ [1,2,3,4]
@test !([1,2] ⊂ [1,3,4])
@test !([1,2] ⊂ [1,2])
end
# issue #9503
@test parse("x<:y") == Expr(:(<:), :x, :y)
@test parse("x>:y") == Expr(:(>:), :x, :y)
@test parse("x<:y<:z").head === :comparison
@test parse("x>:y<:z").head === :comparison
# issue #11169
uncalled(x) = @test false
fret() = uncalled(return true)
@test fret()
# issue #9617
let p = 15
@test 2p+1 == 31 # not a hex float literal
end
# issue #15597
function test_parseerror(str, msg)
try
parse(str)
@test false
catch e
@test isa(e,ParseError) && e.msg == msg
end
end
test_parseerror("0x", "invalid numeric constant \"0x\"")
test_parseerror("0b", "invalid numeric constant \"0b\"")
test_parseerror("0o", "invalid numeric constant \"0o\"")
test_parseerror("0x0.1", "hex float literal must contain \"p\" or \"P\"")
test_parseerror("0x1.0p", "invalid numeric constant \"0x1.0\"")
# issue #15798
@test expand(Base.parse_input_line("""
try = "No"
""")) == Expr(:error, "unexpected \"=\"")
# issue #15763
# TODO enable post-0.5
#test_parseerror("if\nfalse\nend", "missing condition in \"if\" at none:1")
test_parseerror("if false\nelseif\nend", "missing condition in \"elseif\" at none:2")
# issue #15828
@test expand(parse("x...")) == Expr(:error, "\"...\" expression outside call")
# issue #15830
@test expand(parse("foo(y = (global x)) = y")) == Expr(:error, "misplaced \"global\" declaration")
# issue #15844
function f15844(x)
x
end
g15844 = let
local function f15844(x::Int32)
2x
end
end
function add_method_to_glob_fn!()
global function f15844(x::Int64)
3x
end
end
add_method_to_glob_fn!()
@test g15844 !== f15844
@test g15844(Int32(1)) == 2
@test f15844(Int32(1)) == 1
@test f15844(Int64(1)) == 3
# issue #15661
@test_throws ParseError parse("function catch() end")
@test_throws ParseError parse("function end() end")
@test_throws ParseError parse("function finally() end")
# PR #16170
@test expand(parse("true(x) = x")) == Expr(:error, "invalid function name \"true\"")
@test expand(parse("false(x) = x")) == Expr(:error, "invalid function name \"false\"")
# issue #16355
@test expand(:(f(d:Int...)=nothing)) == Expr(:error, "\"d:Int\" is not a valid function argument name")
# issue #16517
@test (try error(); catch 0; end) === 0
@test (try error(); catch false; end) === false # false and true are Bool literals, not variables
@test (try error(); catch true; end) === true
f16517() = try error(); catch 0; end
@test f16517() === 0
# issue #16671
@test parse("1.") === 1.0
# issue #16672
let isline(x) = isa(x,Expr) && x.head === :line
@test count(isline, parse("begin end").args) == 1
@test count(isline, parse("begin; end").args) == 1
@test count(isline, parse("begin; x+2; end").args) == 1
@test count(isline, parse("begin; x+2; y+1; end").args) == 2
end
# issue #16736
let
local lineoffset0 = @__LINE__ + 1
local lineoffset1 = @__LINE__
local lineoffset2 = @__LINE__ - 1
@test lineoffset0 == lineoffset1 == lineoffset2
end
# issue #16686
@test parse("try x
catch test()
y
end") == Expr(:try,
Expr(:block,
Expr(:line, 1, :none),
:x),
false,
Expr(:block,
Expr(:line, 2, :none),
Expr(:call, :test),
Expr(:line, 3, :none),
:y))
# test that pre 0.5 deprecated syntax is a parse error
@test_throws ParseError parse("Int [1,2,3]")
@test_throws ParseError parse("Int [x for x in 1:10]")
@test_throws ParseError parse("foo (x) = x")
@test_throws ParseError parse("foo {T<:Int}(x::T) = x")
@test_throws ParseError parse("Foo .bar")
@test_throws ParseError parse("import x .y")
@test_throws ParseError parse("using x .y")
@test_throws ParseError parse("--x")
@test_throws ParseError parse("stagedfunction foo(x); end")
#@test_throws ParseError parse("{1,2,3}")
#@test_throws ParseError parse("{1 2 3 4}")
#@test_throws ParseError parse("{1,2; 3,4}")
@test_throws ParseError parse("{x for x in 1:10}")
@test_throws ParseError parse("{x=>y for (x,y) in zip([1,2,3],[4,5,6])}")
#@test_throws ParseError parse("{:a=>1, :b=>2}")
# this now is parsed as getindex(Pair{Any,Any}, ...)
@test_throws MethodError eval(parse("(Any=>Any)[]"))
@test_throws MethodError eval(parse("(Any=>Any)[:a=>1,:b=>2]"))
# to be removed post 0.5
#@test_throws MethodError eval(parse("(Any=>Any)[x=>y for (x,y) in zip([1,2,3],[4,5,6])]"))
# make sure base can be any Integer
for T in (Int, BigInt)
let n = parse(T, "123", Int8(10))
@test n == 123
@test isa(n, T)
end
end
# issue #16720
let err = try
include_string("module A
function broken()
x[1] = some_func(
end
end")
catch e
e
end
@test err.line == 7
end
# issue #17065
@test parse(Int, "2") === 2
@test parse(Bool, "true") === true
@test parse(Bool, "false") === false
@test get(tryparse(Bool, "true")) === get(Nullable{Bool}(true))
@test get(tryparse(Bool, "false")) === get(Nullable{Bool}(false))
@test_throws ArgumentError parse(Int, "2", 1)
@test_throws ArgumentError parse(Int, "2", 63)
# issue #17333: tryparse should still throw on invalid base
for T in (Int32, BigInt), base in (0,1,100)
@test_throws ArgumentError tryparse(T, "0", base)
end
# error throwing branch from #10560
@test_throws ArgumentError Base.tryparse_internal(Bool, "foo", 1, 2, 10, true)
# PR #17393
for op in (:.==, :.&, :.|, :.≤)
@test parse("a $op b") == Expr(:call, op, :a, :b)
end
for op in (:.=, :.+=)
@test parse("a $op b") == Expr(op, :a, :b)
end
# issue #17489
let m_error, error_out, filename = Base.source_path()
m_error = try @eval method_c6(a::(:A)) = 1; catch e; e; end
error_out = sprint(showerror, m_error)
@test startswith(error_out, "ArgumentError: invalid type for argument a in method definition for method_c6 at $filename:")
m_error = try @eval method_c6(::(:A)) = 2; catch e; e; end
error_out = sprint(showerror, m_error)
@test startswith(error_out, "ArgumentError: invalid type for argument number 1 in method definition for method_c6 at $filename:")
m_error = try @eval method_c6(A; B) = 3; catch e; e; end
error_out = sprint(showerror, m_error)
@test error_out == "syntax: keyword argument \"B\" needs a default value"
end
# issue #7272
@test expand(parse("let
global x = 2
local x = 1
end")) == Expr(:error, "variable \"x\" declared both local and global")
# make sure front end can correctly print values to error messages
let ex = expand(parse("\"a\"=1"))
@test ex == Expr(:error, "invalid assignment location \"\"a\"\"")
end
# make sure that incomplete tags are detected correctly
# (i.e. error messages in src/julia-parser.scm must be matched correctly
# by the code in base/client.jl)
for (str, tag) in Dict("" => :none, "\"" => :string, "#=" => :comment, "'" => :char,
"`" => :cmd, "begin;" => :block, "quote;" => :block,
"let;" => :block, "for i=1;" => :block, "function f();" => :block,
"f() do x;" => :block, "module X;" => :block, "type X;" => :block,
"immutable X;" => :block, "(" => :other, "[" => :other,
"begin" => :other, "quote" => :other,
"let" => :other, "for" => :other, "function" => :other,
"f() do" => :other, "module" => :other, "type" => :other,
"immutable" => :other)
@test Base.incomplete_tag(parse(str, raise=false)) == tag
end
# meta nodes for optional positional arguments
@test expand(:(@inline f(p::Int=2) = 3)).args[2].args[3].inlineable
# issue #16096
module M16096
macro iter()
quote
@inline function foo(sub)
it = 1
end
end
end
end
let ex = expand(:(@M16096.iter))
@test !(isa(ex,Expr) && ex.head === :error)
end
# issue #15838
module A15838
macro f() end
const x = :a
end
module B15838
import A15838.@f
macro f(x); return :x; end
const x = :b
end
@test A15838.@f() === nothing
@test A15838.@f(1) === :b
let nometh = expand(:(A15838.@f(1, 2)))
@test (nometh::Expr).head === :error
@test length(nometh.args) == 1
e = nometh.args[1]::MethodError
@test e.f === getfield(A15838, Symbol("@f"))
@test e.args === (1,2)
end
# issue 10046
for op in ["+", "-", "\$", "|", ".+", ".-", "*", ".*"]
@test_throws ParseError parse("$op in [+, -]")
end
# issue #17701
@test expand(:(i==3 && i+=1)) == Expr(:error, "invalid assignment location \"==(i,3)&&i\"")
# PR #15592
let str = "[1] [2]"
@test_throws ParseError parse(str)
end
# issue 15896 and PR 15913
@test_throws ErrorException eval(:(macro test15896(d; y=0) end))
# Issue #16578 (Lowering) mismatch between push_loc and pop_loc
module TestMeta_16578
using Base.Test
function get_expr_list(ex)
if isa(ex, LambdaInfo)
return Base.uncompressed_ast(ex)
elseif ex.head == :thunk
return get_expr_list(ex.args[1])
else
return ex.args
end
end
function count_meta_loc(exprs)
push_count = 0
pop_count = 0
for expr in exprs
Meta.isexpr(expr, :meta) || continue
expr = expr::Expr
if expr.args[1] === :push_loc
push_count += 1
elseif expr.args[1] === :pop_loc
pop_count += 1
end
@test push_count >= pop_count
end
@test push_count == pop_count
return push_count
end
function is_return_ssavalue(ex::Expr)
ex.head === :return && isa(ex.args[1], SSAValue)
end
function is_pop_loc(ex::Expr)
ex.head === :meta && ex.args[1] === :pop_loc
end
# Macros
macro m1()
quote
sin(1)
end
end
macro m2()
quote
1
end
end
include_string("""
macro m3()
quote
@m1
end
end
macro m4()
quote
@m2
end
end
""", "another_file.jl")
m1_exprs = get_expr_list(expand(:(@m1)))
m2_exprs = get_expr_list(expand(:(@m2)))
m3_exprs = get_expr_list(expand(:(@m3)))
m4_exprs = get_expr_list(expand(:(@m4)))
# Check the expanded expresion has expected number of matching push/pop
# and the return is handled correctly
@test count_meta_loc(m1_exprs) == 1
@test is_return_ssavalue(m1_exprs[end])
@test is_pop_loc(m1_exprs[end - 1])
@test count_meta_loc(m2_exprs) == 1
@test m2_exprs[end] == :(return 1)
@test is_pop_loc(m2_exprs[end - 1])
@test count_meta_loc(m3_exprs) == 2
@test is_return_ssavalue(m3_exprs[end])
@test is_pop_loc(m3_exprs[end - 1])
@test count_meta_loc(m4_exprs) == 2
@test m4_exprs[end] == :(return 1)
@test is_pop_loc(m4_exprs[end - 1])
function f1(a)
b = a + 100
b
end
@generated function f2(a)
quote
b = a + 100
b
end
end
f1_exprs = get_expr_list(@code_typed f1(1))
@test count_meta_loc(f1_exprs) == 0
@test Meta.isexpr(f1_exprs[end], :return)
f2_exprs = get_expr_list(@code_typed f2(1))
@test count_meta_loc(f2_exprs) == 1
@test is_pop_loc(f2_exprs[end - 1])
@test Meta.isexpr(f2_exprs[end], :return)
end