Difference between revisions of "sstrict.lua"
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− | Super Strict is a pure Lua library that finds undeclared variables and other minor mistakes in your source code through static analysis. You do not need to execute any code to find your mistakes | + | Super Strict is a pure Lua library that finds undeclared variables and other minor mistakes in your source code through static analysis. You do not need to execute any code to find your mistakes because Super Strict will check the code during loading. Just require the "sstrict.lua" file and any subsequent calls to "require","dofile","loadfile" or "loadstring" will be checked through Super Strict. |
+ | <source lang="lua">require('sstrict.lua')</source> | ||
+ | To exclude a specific Lua file from the being checked place the "--!strict" line at the top of your source code. | ||
+ | |||
+ | == Undefined and unused variables == | ||
+ | <source lang="lua">function foo() | ||
+ | a = 5 -- undefined variable 'a' | ||
+ | end | ||
+ | function bar(a, b) | ||
+ | local c = a + b -- unused variable 'c' | ||
+ | return a + b | ||
+ | end</source> | ||
+ | |||
+ | == Redefinition of variable names == | ||
+ | <source lang="lua">for i = 1, 10 do | ||
+ | for i = 1, 10 do | ||
+ | -- variable name 'i' redefinition | ||
+ | end | ||
+ | end</source> | ||
+ | |||
+ | == Empty and unnecessary code blocks == | ||
+ | <source lang="lua">for i = 1, 3 do | ||
+ | -- empty code block error | ||
+ | end | ||
+ | function baz() | ||
+ | local n = 5 | ||
+ | n = n - 1 -- unnecessary code block error | ||
+ | end</source> | ||
+ | |||
+ | == Constant conditions == | ||
+ | <source lang="lua">if 5+5 > 11 then | ||
+ | -- constant condition error in if/else statement | ||
+ | end</source> | ||
+ | |||
+ | == Too many values in assignment == | ||
+ | <source lang="lua">a = 1, 2 -- too many values on the right-hand side in assignment</source> | ||
+ | |||
+ | == Duplicate variables, arguments and table fields == | ||
+ | <source lang="lua">t = | ||
+ | { | ||
+ | ['a'] = 100, | ||
+ | a = 100 -- duplicate field 'a' in table constructor | ||
+ | } | ||
+ | for b, b in pairs(t) do | ||
+ | -- duplicate lvariable 'b' | ||
+ | end | ||
+ | c, c = 1, 2 -- duplicate variable 'c' | ||
+ | function foo(d, d) | ||
+ | -- duplicate argument 'd' | ||
+ | end</source> | ||
== Documentation and source code == | == Documentation and source code == |
Revision as of 15:00, 15 October 2024
Super Strict is a pure Lua library that finds undeclared variables and other minor mistakes in your source code through static analysis. You do not need to execute any code to find your mistakes because Super Strict will check the code during loading. Just require the "sstrict.lua" file and any subsequent calls to "require","dofile","loadfile" or "loadstring" will be checked through Super Strict.
require('sstrict.lua')
To exclude a specific Lua file from the being checked place the "--!strict" line at the top of your source code.
Contents
Undefined and unused variables
function foo()
a = 5 -- undefined variable 'a'
end
function bar(a, b)
local c = a + b -- unused variable 'c'
return a + b
end
Redefinition of variable names
for i = 1, 10 do
for i = 1, 10 do
-- variable name 'i' redefinition
end
end
Empty and unnecessary code blocks
for i = 1, 3 do
-- empty code block error
end
function baz()
local n = 5
n = n - 1 -- unnecessary code block error
end
Constant conditions
if 5+5 > 11 then
-- constant condition error in if/else statement
end
Too many values in assignment
a = 1, 2 -- too many values on the right-hand side in assignment
Duplicate variables, arguments and table fields
t =
{
['a'] = 100,
a = 100 -- duplicate field 'a' in table constructor
}
for b, b in pairs(t) do
-- duplicate lvariable 'b'
end
c, c = 1, 2 -- duplicate variable 'c'
function foo(d, d)
-- duplicate argument 'd'
end