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|
--[[--------------------------------------------------------------------
test_parser-5.0.lua
Lua 5.0.x parser test cases
This file is part of Yueliang.
Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
The COPYRIGHT file describes the conditions
under which this software may be distributed.
See the ChangeLog for more information.
----------------------------------------------------------------------]]
--[[--------------------------------------------------------------------
-- Notes:
-- * there is no intention of properly specifying a grammar; the notes
-- are meant to reflect the structure of lparser so that it is easy
-- to locate and modify lparser if so desired
-- * some test may have invalid expressions but will compile, this
-- is because the chunk hasn't been executed yet
----------------------------------------------------------------------]]
--[[--------------------------------------------------------------------
-- lparser parsing structure, the Lua 5.0.x version...
----------------------------------------------------------------------]]
--------------------------------------------------------------------
-- chunk -> { stat [';'] }
--------------------------------------------------------------------
-- stat -> DO block END
-- block -> chunk
--------------------------------------------------------------------
-- stat -> breakstat
-- breakstat -> BREAK
-- * must have a loop to break
-- * must be last statement in a block
--------------------------------------------------------------------
-- stat -> retstat
-- retstat -> RETURN explist
-- * must be last statement in a block
--------------------------------------------------------------------
-- stat -> exprstat
-- exprstat -> primaryexp
-- (-> func | assignment)
-- * if LHS is VCALL then func, otherwise assignment
-- * for func, LHS is VCALL if funcargs in expression
--------------------------------------------------------------------
-- stat -> funcstat
-- funcstat -> FUNCTION funcname body
-- funcname -> NAME {'.' NAME} [':' NAME]
--------------------------------------------------------------------
-- body -> '(' parlist ')' chunk END
-- parlist -> [ param { ',' param } ]
-- param -> NAME
-- * DOTS must be the last parameter in a parlist
--------------------------------------------------------------------
-- stat -> LOCAL localstat
-- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
-- explist1 -> expr { ',' expr }
--------------------------------------------------------------------
-- stat -> LOCAL FUNCTION localfunc
-- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
--------------------------------------------------------------------
-- stat -> ifstat
-- ifstat -> IF cond THEN block
-- {ELSEIF cond THEN block}
-- [ELSE block] END
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
-- stat -> forstat
-- forstat -> fornum | forlist
-- forlist -> NAME {,NAME} IN explist1 forbody END
-- fornum -> NAME = exp1,exp1[,exp1] forbody END
-- forbody -> DO block
-- block -> chunk
--------------------------------------------------------------------
-- stat -> whilestat
-- whilestat -> WHILE cond DO block END
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
-- stat -> repeatstat
-- repeatstat -> REPEAT block UNTIL cond
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
-- assignment -> ',' primaryexp assignment
-- | '=' explist1
-- explist1 -> expr { ',' expr }
-- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
--------------------------------------------------------------------
-- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
-- prefixexp -> NAME | '(' expr ')'
-- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
-- * funcargs turn an expr into a function call
--------------------------------------------------------------------
-- expr -> subexpr
-- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
-- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
-- | constructor | FUNCTION body | primaryexp
--------------------------------------------------------------------
-- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
-- fieldsep -> ',' | ';'
-- field -> recfield | listfield
-- recfield -> ( NAME | '[' exp1 ']' ) = exp1
-- listfield -> expr
--------------------------------------------------------------------
--[[--------------------------------------------------------------------
-- parser test cases, Lua 5.0.x
-- * uncomment string delimiter to enable syntax highlighting...
-- * anything that matches "^%s*%-%-" is a comment
-- * headings to display are "^%s*TESTS:%s*(.*)$"
-- * FAIL test cases should match "%s*%-%-%s*FAIL%s*$"
----------------------------------------------------------------------]]
tests_source = [[
--------------------------------------------------------------------
TESTS: empty chunks
--------------------------------------------------------------------
-- chunk -> { stat [';'] }
--------------------------------------------------------------------
; -- FAIL
--------------------------------------------------------------------
TESTS: optional semicolon, simple local statements
--------------------------------------------------------------------
-- stat -> LOCAL localstat
-- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
-- explist1 -> expr { ',' expr }
--------------------------------------------------------------------
local -- FAIL
local; -- FAIL
local = -- FAIL
local end -- FAIL
local a
local a;
local a, b, c
local a; local b local c;
local a = 1
local a local b = a
local a, b = 1, 2
local a, b, c = 1, 2, 3
local a, b, c = 1
local a = 1, 2, 3
local a, local -- FAIL
local 1 -- FAIL
local "foo" -- FAIL
local a = local -- FAIL
local a, b, = -- FAIL
local a, b = 1, local -- FAIL
local a, b = , local -- FAIL
--------------------------------------------------------------------
TESTS: simple DO blocks
--------------------------------------------------------------------
-- stat -> DO block END
-- block -> chunk
--------------------------------------------------------------------
do -- FAIL
end -- FAIL
do end
do ; end -- FAIL
do 1 end -- FAIL
do "foo" end -- FAIL
do local a, b end
do local a local b end
do local a; local b; end
do local a = 1 end
do do end end
do do end; end
do do do end end end
do do do end; end; end
do do do return end end end
do end do -- FAIL
do end end -- FAIL
do return end
do return return end -- FAIL
do break end -- FAIL
--------------------------------------------------------------------
TESTS: simple WHILE loops
--------------------------------------------------------------------
-- stat -> whilestat
-- whilestat -> WHILE cond DO block END
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
while -- FAIL
while do -- FAIL
while = -- FAIL
while 1 do -- FAIL
while 1 do end
while 1 do local a end
while 1 do local a local b end
while 1 do local a; local b; end
while 1 do 2 end -- FAIL
while 1 do "foo" end -- FAIL
while true do end
while 1 do ; end -- FAIL
while 1 do while -- FAIL
while 1 end -- FAIL
while 1 2 do -- FAIL
while 1 = 2 do -- FAIL
while 1 do return end
while 1 do return return end -- FAIL
while 1 do do end end
while 1 do do return end end
while 1 do break end
while 1 do break break end -- FAIL
while 1 do do break end end
--------------------------------------------------------------------
TESTS: simple REPEAT loops
--------------------------------------------------------------------
-- stat -> repeatstat
-- repeatstat -> REPEAT block UNTIL cond
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
repeat -- FAIL
repeat until -- FAIL
repeat until 0
repeat until false
repeat until local -- FAIL
repeat end -- FAIL
repeat 1 -- FAIL
repeat = -- FAIL
repeat local a until 1
repeat local a local b until 0
repeat local a; local b; until 0
repeat ; until 1 -- FAIL
repeat 2 until 1 -- FAIL
repeat "foo" until 1 -- FAIL
repeat return until 0
repeat return return until 0 -- FAIL
repeat break until 0
repeat break break until 0 -- FAIL
repeat do end until 0
repeat do return end until 0
repeat do break end until 0
--------------------------------------------------------------------
TESTS: simple FOR loops
--------------------------------------------------------------------
-- stat -> forstat
-- forstat -> fornum | forlist
-- forlist -> NAME {,NAME} IN explist1 forbody END
-- fornum -> NAME = exp1,exp1[,exp1] forbody END
-- forbody -> DO block
-- block -> chunk
--------------------------------------------------------------------
for -- FAIL
for do -- FAIL
for end -- FAIL
for 1 -- FAIL
for a -- FAIL
for true -- FAIL
for a, in -- FAIL
for a in -- FAIL
for a do -- FAIL
for a in do -- FAIL
for a in b do -- FAIL
for a in b end -- FAIL
for a in b, do -- FAIL
for a in b do end
for a in b do local a local b end
for a in b do local a; local b; end
for a in b do 1 end -- FAIL
for a in b do "foo" end -- FAIL
for a b in -- FAIL
for a, b, c in p do end
for a, b, c in p, q, r do end
for a in 1 do end
for a in true do end
for a in "foo" do end
for a in b do break end
for a in b do break break end -- FAIL
for a in b do return end
for a in b do return return end -- FAIL
for a in b do do end end
for a in b do do break end end
for a in b do do return end end
for = -- FAIL
for a = -- FAIL
for a, b = -- FAIL
for a = do -- FAIL
for a = 1, do -- FAIL
for a = p, q, do -- FAIL
for a = p q do -- FAIL
for a = b do end -- FAIL
for a = 1, 2, 3, 4 do end -- FAIL
for a = p, q do end
for a = 1, 2 do end
for a = 1, 2 do local a local b end
for a = 1, 2 do local a; local b; end
for a = 1, 2 do 3 end -- FAIL
for a = 1, 2 do "foo" end -- FAIL
for a = p, q, r do end
for a = 1, 2, 3 do end
for a = p, q do break end
for a = p, q do break break end -- FAIL
for a = 1, 2 do return end
for a = 1, 2 do return return end -- FAIL
for a = p, q do do end end
for a = p, q do do break end end
for a = p, q do do return end end
--------------------------------------------------------------------
TESTS: break statement
--------------------------------------------------------------------
-- stat -> breakstat
-- breakstat -> BREAK
-- * must have a loop to break
-- * must be last statement in a block
--------------------------------------------------------------------
break -- FAIL
--------------------------------------------------------------------
TESTS: return statement
--------------------------------------------------------------------
-- stat -> retstat
-- retstat -> RETURN explist
-- * must be last statement in a block
--------------------------------------------------------------------
return
return;
return return -- FAIL
return 1
return local -- FAIL
return "foo"
return 1, -- FAIL
return 1,2,3
return a,b,c,d
return 1,2;
--------------------------------------------------------------------
TESTS: conditional statements
--------------------------------------------------------------------
-- stat -> ifstat
-- ifstat -> IF cond THEN block
-- {ELSEIF cond THEN block}
-- [ELSE block] END
-- block -> chunk
-- cond -> expr
--------------------------------------------------------------------
if -- FAIL
elseif -- FAIL
else -- FAIL
then -- FAIL
if then -- FAIL
if 1 -- FAIL
if 1 then -- FAIL
if 1 else -- FAIL
if 1 then else -- FAIL
if 1 then elseif -- FAIL
if 1 then end
if 1 then local a end
if 1 then local a local b end
if 1 then local a; local b; end
if 1 then else end
if 1 then local a else local b end
if 1 then local a; else local b; end
if 1 then elseif 2 -- FAIL
if 1 then elseif 2 then -- FAIL
if 1 then elseif 2 then end
if 1 then local a elseif 2 then local b end
if 1 then local a; elseif 2 then local b; end
if 1 then elseif 2 then else end
if 1 then else if 2 then end end
if 1 then else if 2 then end -- FAIL
if 1 then break end -- FAIL
if 1 then return end
if 1 then return return end -- FAIL
if 1 then end; if 1 then end;
--------------------------------------------------------------------
TESTS: function statements
--------------------------------------------------------------------
-- stat -> funcstat
-- funcstat -> FUNCTION funcname body
-- funcname -> NAME {'.' NAME} [':' NAME]
--------------------------------------------------------------------
-- body -> '(' parlist ')' chunk END
-- parlist -> [ param { ',' param } ]
-- param -> NAME
-- * DOTS must be the last parameter in a parlist
--------------------------------------------------------------------
function -- FAIL
function 1 -- FAIL
function end -- FAIL
function a -- FAIL
function a end -- FAIL
function a( end -- FAIL
function a() end
function a(1 -- FAIL
function a("foo" -- FAIL
function a(p -- FAIL
function a(p,) -- FAIL
function a(p q -- FAIL
function a(p) end
function a(p,q,) end -- FAIL
function a(p,q,r) end
function a(p,q,1 -- FAIL
function a(p) do -- FAIL
function a(p) 1 end -- FAIL
function a(p) return end
function a(p) break end -- FAIL
function a(p) return return end -- FAIL
function a(p) do end end
function a.( -- FAIL
function a.1 -- FAIL
function a.b() end
function a.b, -- FAIL
function a.b.( -- FAIL
function a.b.c.d() end
function a: -- FAIL
function a:1 -- FAIL
function a:b() end
function a:b: -- FAIL
function a:b. -- FAIL
function a.b.c:d() end
function a(...) end
function a(..., -- FAIL
function a(p,...) end
function a(p,q,r,...) end
function a() local a local b end
function a() local a; local b; end
function a() end; function a() end;
--------------------------------------------------------------------
TESTS: local function statements
--------------------------------------------------------------------
-- stat -> LOCAL FUNCTION localfunc
-- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
--------------------------------------------------------------------
local function -- FAIL
local function 1 -- FAIL
local function end -- FAIL
local function a -- FAIL
local function a end -- FAIL
local function a( end -- FAIL
local function a() end
local function a(1 -- FAIL
local function a("foo" -- FAIL
local function a(p -- FAIL
local function a(p,) -- FAIL
local function a(p q -- FAIL
local function a(p) end
local function a(p,q,) end -- FAIL
local function a(p,q,r) end
local function a(p,q,1 -- FAIL
local function a(p) do -- FAIL
local function a(p) 1 end -- FAIL
local function a(p) return end
local function a(p) break end -- FAIL
local function a(p) return return end -- FAIL
local function a(p) do end end
local function a. -- FAIL
local function a: -- FAIL
local function a(...) end
local function a(..., -- FAIL
local function a(p,...) end
local function a(p,q,r,...) end
local function a() local a local b end
local function a() local a; local b; end
local function a() end; local function a() end;
--------------------------------------------------------------------
-- stat -> exprstat
-- exprstat -> primaryexp
-- (-> func | assignment)
-- * if LHS is VCALL then func, otherwise assignment
-- * for func, LHS is VCALL if funcargs in expression
--------------------------------------------------------------------
TESTS: assignments
--------------------------------------------------------------------
-- assignment -> ',' primaryexp assignment
-- | '=' explist1
-- explist1 -> expr { ',' expr }
-- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
--------------------------------------------------------------------
a -- FAIL
a, -- FAIL
a,b,c -- FAIL
a,b = -- FAIL
a = 1
a = 1,2,3
a,b,c = 1
a,b,c = 1,2,3
a.b = 1
a.b.c = 1
a[b] = 1
a[b][c] = 1
a.b[c] = 1
a[b].c = 1
0 = -- FAIL
"foo" = -- FAIL
true = -- FAIL
(a) = -- FAIL
{} = -- FAIL
a:b() = -- FAIL
a() = -- FAIL
a.b:c() = -- FAIL
a[b]() = -- FAIL
a = a b -- FAIL
a = 1 2 -- FAIL
a = a = 1 -- FAIL
--------------------------------------------------------------------
TESTS: function calls
--------------------------------------------------------------------
-- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
-- prefixexp -> NAME | '(' expr ')'
-- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
-- * funcargs turn an expr into a function call
--------------------------------------------------------------------
a( -- FAIL
a()
a(1)
a(1,) -- FAIL
a(1,2,3)
1() -- FAIL
a()()
a.b()
a[b]()
a.1 -- FAIL
a.b -- FAIL
a[b] -- FAIL
a.b.( -- FAIL
a.b.c()
a[b][c]()
a[b].c()
a.b[c]()
a:b()
a:b -- FAIL
a:1 -- FAIL
a.b:c()
a[b]:c()
a:b: -- FAIL
a:b():c()
a:b().c[d]:e()
a:b()[c].d:e()
(a)()
()() -- FAIL
(1)()
("foo")()
(true)()
(a)()()
(a.b)()
(a[b])()
(a).b()
(a)[b]()
(a):b()
(a).b[c]:d()
(a)[b].c:d()
(a):b():c()
(a):b().c[d]:e()
(a):b()[c].d:e()
--------------------------------------------------------------------
TESTS: more function calls
--------------------------------------------------------------------
a"foo"
a[[foo]]
a.b"foo"
a[b]"foo"
a:b"foo"
a{}
a.b{}
a[b]{}
a:b{}
a()"foo"
a"foo"()
a"foo".b()
a"foo"[b]()
a"foo":c()
a"foo""bar"
a"foo"{}
(a):b"foo".c[d]:e"bar"
(a):b"foo"[c].d:e"bar"
a(){}
a{}()
a{}.b()
a{}[b]()
a{}:c()
a{}"foo"
a{}{}
(a):b{}.c[d]:e{}
(a):b{}[c].d:e{}
--------------------------------------------------------------------
TESTS: simple expressions
--------------------------------------------------------------------
-- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
-- | constructor | FUNCTION body | primaryexp
--------------------------------------------------------------------
a = -- FAIL
a = a
a = nil
a = false
a = 1
a = "foo"
a = [[foo]]
a = {}
a = (a)
a = (nil)
a = (true)
a = (1)
a = ("foo")
a = ([[foo]])
a = ({})
a = a.b
a = a.b. -- FAIL
a = a.b.c
a = a:b -- FAIL
a = a[b]
a = a[1]
a = a["foo"]
a = a[b][c]
a = a.b[c]
a = a[b].c
a = (a)[b]
a = (a).c
a = () -- FAIL
a = a()
a = a.b()
a = a[b]()
a = a:b()
a = (a)()
a = (a).b()
a = (a)[b]()
a = (a):b()
a = a"foo"
a = a{}
a = function -- FAIL
a = function 1 -- FAIL
a = function a -- FAIL
a = function end -- FAIL
a = function( -- FAIL
a = function() end
a = function(1 -- FAIL
a = function(p) end
a = function(p,) -- FAIL
a = function(p q -- FAIL
a = function(p,q,r) end
a = function(p,q,1 -- FAIL
a = function(...) end
a = function(..., -- FAIL
a = function(p,...) end
a = function(p,q,r,...) end
--------------------------------------------------------------------
TESTS: operators
--------------------------------------------------------------------
-- expr -> subexpr
-- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
-- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
-- | constructor | FUNCTION body | primaryexp
--------------------------------------------------------------------
a = -10
a = -"foo"
a = -a
a = -nil
a = -true
a = -{}
a = -function() end
a = -a()
a = -(a)
a = - -- FAIL
a = not 10
a = not "foo"
a = not a
a = not nil
a = not true
a = not {}
a = not function() end
a = not a()
a = not (a)
a = not -- FAIL
a = 1 + 2; a = 1 - 2
a = 1 * 2; a = 1 / 2
a = 1 ^ 2; a = 1 .. 2
a = 1 + -- FAIL
a = 1 .. -- FAIL
a = 1 * / -- FAIL
a = 1 + -2; a = 1 - -2
a = 1 * - -- FAIL
a = 1 * not 2; a = 1 / not 2
a = 1 / not -- FAIL
a = 1 + 2 - 3 * 4 / 5 ^ 6
a = ((1 + 2) - 3) * (4 / (5 ^ 6))
a = (1 + (2 - (3 * (4 / (5 ^ ((6)))))))
a = ((1 -- FAIL
a = ((1 + 2) -- FAIL
a = 1) -- FAIL
a = a + b - c
a = "foo" + "bar"
a = "foo".."bar".."baz"
a = true + false - nil
a = {} * {}
a = function() end / function() end
a = a() ^ b()
--------------------------------------------------------------------
TESTS: more operators
--------------------------------------------------------------------
a = 1 == 2; a = 1 ~= 2
a = 1 < 2; a = 1 <= 2
a = 1 > 2; a = 1 >= 2
a = 1 < 2 < 3
a = 1 >= 2 >= 3
a = 1 == -- FAIL
a = ~= 2 -- FAIL
a = "foo" == "bar"
a = "foo" > "bar"
a = a ~= b
a = true == false
a = 1 and 2; a = 1 or 2
a = 1 and -- FAIL
a = or 1 -- FAIL
a = 1 and 2 and 3
a = 1 or 2 or 3
a = 1 and 2 or 3
a = a and b or c
a = a() and (b)() or c.d
a = "foo" and "bar"
a = true or false
a = {} and {} or {}
a = (1) and ("foo") or (nil)
a = function() end == function() end
a = function() end or function() end
--------------------------------------------------------------------
TESTS: constructors
--------------------------------------------------------------------
-- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
-- fieldsep -> ',' | ';'
-- field -> recfield | listfield
-- recfield -> ( NAME | '[' exp1 ']' ) = exp1
-- listfield -> expr
--------------------------------------------------------------------
a = { -- FAIL
a = {}
a = {,} -- FAIL
a = {;}
a = {,,} -- FAIL
a = {;;} -- FAIL
a = {{ -- FAIL
a = {{{}}}
a = {{},{},{{}},}
a = { 1 }
a = { 1, }
a = { 1; }
a = { 1, 2 }
a = { a, b, c, }
a = { true; false, nil; }
a = { a.b, a[b]; a:c(), }
a = { 1 + 2, a > b, "a" or "b" }
a = { a=1, }
a = { a=1, b="foo", c=nil }
a = { a -- FAIL
a = { a= -- FAIL
a = { a=, -- FAIL
a = { a=; -- FAIL
a = { 1, a="foo" -- FAIL
a = { 1, a="foo"; b={}, d=true; }
a = { [ -- FAIL
a = { [1 -- FAIL
a = { [1] -- FAIL
a = { [a]= -- FAIL
a = { ["foo"]="bar" }
a = { [1]=a, [2]=b, }
a = { true, a=1; ["foo"]="bar", }
]]
-- end of script
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