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var
cg
=
require
(
'../lib/parser/codeGenerator'
)
.
codeGenerator
(
)
;
var
MemoryStream
=
require
(
'../lib/memorystream'
)
.
MemoryStream
;
var
should
=
require
(
'chai'
)
.
should
(
)
;
var
_
=
require
(
'underscore'
)
;
var
sm
=
require
(
'source-map'
)
;
var
shouldContainFields
=
require
(
'./containsFields.js'
)
.
containsFields
;
describe
(
'code generator'
,
function
(
)
{
function
serialise
(
code
)
{
return
new
sm
.
SourceNode
(
0
,
0
,
0
,
code
)
.
toString
(
)
;
}
var
generatesExpression
=
function
(
term
,
expectedGeneratedCode
,
print
)
{
var
code
=
serialise
(
term
.
generate
(
new
cg
.
SymbolScope
(
)
)
)
;
if
(
print
)
{
console
.
log
(
code
)
;
}
should
.
equal
(
code
,
expectedGeneratedCode
)
;
}
;
var
generatesStatement
=
function
(
term
,
expectedGeneratedCode
)
{
var
code
=
serialise
(
term
.
generateStatement
(
new
cg
.
SymbolScope
(
)
)
)
;
should
.
equal
(
code
,
expectedGeneratedCode
)
;
}
;
var
generatesStatements
=
function
(
term
,
expectedGeneratedCode
,
global
,
print
)
{
var
code
=
serialise
(
term
.
generateStatements
(
new
cg
.
SymbolScope
(
)
,
{
isScope
:
true
,
global
:
global
}
)
)
;
if
(
print
)
console
.
log
(
stream
.
toString
(
)
)
should
.
equal
(
code
,
expectedGeneratedCode
)
;
}
;
describe
(
'variable'
,
function
(
)
{
it
(
'with one identifier'
,
function
(
)
{
generatesExpression
(
cg
.
variable
(
[
'one'
]
)
,
'one'
)
;
}
)
;
it
(
'with two identifiers'
,
function
(
)
{
generatesExpression
(
cg
.
variable
(
[
'one'
,
'two'
]
)
,
'oneTwo'
)
;
}
)
;
it
(
'with capitalised word'
,
function
(
)
{
generatesExpression
(
cg
.
variable
(
[
'Stack'
]
)
,
'Stack'
)
;
}
)
;
it
(
'escapes reserved word'
,
function
(
)
{
generatesExpression
(
cg
.
variable
(
[
'class'
]
)
,
'$class'
)
;
}
)
;
it
(
"doesn't escape already escaped reserved word"
,
function
(
)
{
generatesExpression
(
cg
.
variable
(
[
'$class'
]
)
,
'$class'
)
;
}
)
;
it
(
"generates a semi-colon when as a statement"
,
function
(
)
{
generatesStatement
(
cg
.
variable
(
[
'asdf'
]
)
,
'asdf;'
)
;
}
)
;
}
)
;
describe
(
'function call'
,
function
(
)
{
it
(
'with no arguments'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
]
)
;
generatesExpression
(
f
,
'f()'
)
;
}
)
;
it
(
'with two arguments'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
variable
(
[
'b'
]
)
]
)
;
generatesExpression
(
f
,
'f(a,b)'
)
;
}
)
;
describe
(
'splats'
,
function
(
)
{
it
(
'just splat'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'b'
]
)
,
cg
.
splat
(
)
]
)
;
generatesExpression
(
f
,
'f.apply(null,b)'
)
;
}
)
;
it
(
'splat with field reference method call'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
indexer
(
cg
.
variable
(
[
'f'
]
)
,
cg
.
variable
(
[
'g'
]
)
)
,
[
cg
.
variable
(
[
'b'
]
)
,
cg
.
splat
(
)
]
)
;
generatesExpression
(
f
,
'f[g].apply(f,b)'
)
;
}
)
;
it
(
'args before'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
variable
(
[
'b'
]
)
,
cg
.
splat
(
)
]
)
;
generatesExpression
(
f
,
'f.apply(null,[a].concat(b))'
)
;
}
)
;
it
(
'args after'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
splat
(
)
,
cg
.
variable
(
[
'b'
]
)
]
)
;
generatesExpression
(
f
,
'f.apply(null,a.concat([b]))'
)
;
}
)
;
it
(
'two splats'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
variable
(
[
'b'
]
)
,
cg
.
splat
(
)
,
cg
.
variable
(
[
'c'
]
)
,
cg
.
variable
(
[
'd'
]
)
,
cg
.
splat
(
)
,
cg
.
variable
(
[
'e'
]
)
]
)
;
generatesExpression
(
f
,
'f.apply(null,[a].concat(b).concat([c]).concat(d).concat([e]))'
)
;
}
)
;
it
(
'splat with optional args'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'b'
]
)
,
cg
.
splat
(
)
,
cg
.
hashEntry
(
[
'port'
]
,
cg
.
variable
(
[
'p'
]
)
)
]
,
{
options
:
true
}
)
;
generatesExpression
(
f
,
'f.apply(null,b.concat([{port:p}]))'
)
;
}
)
;
}
)
;
describe
(
'optional arguments'
,
function
(
)
{
it
(
'with no arguments and an optional argument'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
hashEntry
(
[
'port'
]
,
cg
.
variable
(
[
'p'
]
)
)
]
,
{
options
:
true
}
)
;
generatesExpression
(
f
,
'f({port:p})'
)
;
}
)
;
it
(
'with an argument and two optional arguments'
,
function
(
)
{
var
f
=
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
hashEntry
(
[
'port'
]
,
cg
.
variable
(
[
'p'
]
)
)
,
cg
.
hashEntry
(
[
'server'
]
,
cg
.
variable
(
[
's'
]
)
)
,
cg
.
hashEntry
(
[
'start'
]
)
]
,
{
options
:
true
}
)
;
generatesExpression
(
f
,
'f(a,{port:p,server:s,start:true})'
)
;
}
)
;
}
)
;
}
)
;
describe
(
'string'
,
function
(
)
{
it
(
'normal'
,
function
(
)
{
var
s
=
cg
.
string
(
"a string"
)
;
generatesExpression
(
s
,
"'a string'"
)
;
}
)
;
it
(
'with newline'
,
function
(
)
{
var
s
=
cg
.
string
(
"one\ntwo"
)
;
generatesExpression
(
s
,
"'one\\ntwo'"
)
;
}
)
;
it
(
'with escaped single quote'
,
function
(
)
{
var
s
=
cg
.
string
(
"his name was 'Sue'. weird"
)
;
generatesExpression
(
s
,
"'his name was \\'Sue\\'. weird'"
)
;
}
)
;
}
)
;
describe
(
'regexps'
,
function
(
)
{
it
(
'simple'
,
function
(
)
{
var
r
=
cg
.
regExp
(
{
pattern
:
'abc'
}
)
;
generatesExpression
(
r
,
"/abc/"
)
;
}
)
;
it
(
'with options'
,
function
(
)
{
var
r
=
cg
.
regExp
(
{
pattern
:
'abc'
,
options
:
'gim'
}
)
;
generatesExpression
(
r
,
"/abc/gim"
)
;
}
)
;
it
(
'containing /'
,
function
(
)
{
var
r
=
cg
.
regExp
(
{
pattern
:
'https://'
,
options
:
'gim'
}
)
;
generatesExpression
(
r
,
"/https:\\/\\//gim"
)
;
}
)
;
}
)
;
describe
(
'interpolated strings'
,
function
(
)
{
it
(
'one string'
,
function
(
)
{
var
s
=
cg
.
interpolatedString
(
[
cg
.
string
(
"a string"
)
]
)
;
generatesExpression
(
s
,
"'a string'"
)
;
}
)
;
it
(
'expression in string'
,
function
(
)
{
var
s
=
cg
.
interpolatedString
(
[
cg
.
string
(
"before "
)
,
cg
.
variable
(
[
'x'
]
)
,
cg
.
string
(
' after'
)
]
)
;
generatesExpression
(
s
,
"('before '+x+' after')"
)
;
}
)
;
}
)
;
describe
(
'operators'
,
function
(
)
{
it
(
'two argument operator'
,
function
(
)
{
var
s
=
cg
.
operator
(
'*'
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
integer
(
8
)
]
)
;
generatesExpression
(
s
,
"(a*8)"
)
;
}
)
;
it
(
'multiple argument operator'
,
function
(
)
{
var
s
=
cg
.
operator
(
'*'
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
integer
(
8
)
,
cg
.
variable
(
[
'b'
]
)
]
)
;
generatesExpression
(
s
,
"(a*8*b)"
)
;
}
)
;
it
(
'unary operator'
,
function
(
)
{
var
s
=
cg
.
operator
(
'-'
,
[
cg
.
variable
(
[
'a'
]
)
]
)
;
generatesExpression
(
s
,
"(-a)"
)
;
}
)
;
it
(
'unary alpha operator generates spaces around operator'
,
function
(
)
{
var
s
=
cg
.
operator
(
'instanceof'
,
[
cg
.
variable
(
[
'a'
]
)
]
)
;
generatesExpression
(
s
,
"(instanceof a)"
)
;
}
)
;
it
(
'alpha operator generates spaces around operator'
,
function
(
)
{
var
s
=
cg
.
operator
(
'instanceof'
,
[
cg
.
variable
(
[
'a'
]
)
,
cg
.
variable
(
[
'b'
]
)
]
)
;
generatesExpression
(
s
,
"(a instanceof b)"
)
;
}
)
;
}
)
describe
(
'block'
,
function
(
)
{
describe
(
'scopify'
,
function
(
)
{
it
(
'without parameters'
,
function
(
)
{
var
b
=
cg
.
block
(
[
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'a'
]
)
]
)
)
;
var
scopifiedBlock
=
b
.
scopify
(
)
;
shouldContainFields
(
scopifiedBlock
,
{
isVariable
:
true
,
variable
:
[
'a'
]
}
)
;
}
)
;
it
(
'with parameters'
,
function
(
)
{
var
b
=
cg
.
block
(
[
cg
.
parameters
(
[
cg
.
variable
(
[
'a'
]
)
]
)
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'a'
]
)
]
)
)
;
should
.
equal
(
b
.
scopify
(
)
,
b
)
;
}
)
;
}
)
;
it
(
'with no parameters'
,
function
(
)
{
var
b
=
cg
.
block
(
[
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'x'
]
)
]
)
)
;
generatesExpression
(
b
,
'function(){return x;}'
)
;
}
)
;
it
(
'with no statements'
,
function
(
)
{
var
b
=
cg
.
block
(
[
]
,
cg
.
statements
(
[
]
)
)
;
generatesExpression
(
b
,
'function(){}'
)
;
}
)
;
it
(
'defines its parameters'
,
function
(
)
{
var
b
=
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
]
,
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'x'
]
)
,
cg
.
integer
(
8
)
)
]
)
)
;
generatesExpression
(
b
,
'function(x){return x=8;}'
)
;
}
)
;
it
(
'with two parameters'
,
function
(
)
{
var
b
=
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
,
cg
.
variable
(
[
'y'
]
)
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'x'
]
)
]
)
)
;
generatesExpression
(
b
,
'function(x,y){return x;}'
)
;
}
)
;
it
(
'with two parameters and two statements'
,
function
(
)
{
var
b
=
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
,
cg
.
variable
(
[
'y'
]
)
]
,
cg
.
statements
(
[
cg
.
functionCall
(
cg
.
variable
(
[
'y'
]
)
,
[
cg
.
variable
(
[
'x'
]
)
]
)
,
cg
.
variable
(
[
'x'
]
)
]
)
)
;
generatesExpression
(
b
,
'function(x,y){y(x);return x;}'
)
;
}
)
;
it
(
'block with new context'
,
function
(
)
{
var
b
=
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
,
cg
.
variable
(
[
'y'
]
)
]
,
cg
.
statements
(
[
cg
.
functionCall
(
cg
.
variable
(
[
'y'
]
)
,
[
cg
.
variable
(
[
'x'
]
)
]
)
,
cg
.
variable
(
[
'x'
]
)
]
)
)
;
b
.
redefinesSelf
=
true
;
generatesExpression
(
b
,
'function(x,y){var self=this;y(x);return x;}'
)
;
}
)
;
it
(
'with a parameter and two optional parameters'
,
function
(
)
{
var
b
;
var
s
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'port'
]
)
,
cg
.
integer
(
1
)
)
,
b
=
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
,
cg
.
variable
(
[
'y'
]
)
]
,
cg
.
statements
(
[
cg
.
functionCall
(
cg
.
variable
(
[
'y'
]
)
,
[
cg
.
variable
(
[
'x'
]
)
]
)
,
cg
.
variable
(
[
'x'
]
)
]
)
)
]
)
;
b
.
optionalParameters
=
[
cg
.
hashEntry
(
[
'port'
]
,
cg
.
integer
(
80
)
)
,
cg
.
hashEntry
(
[
'start'
]
,
cg
.
boolean
(
true
)
)
]
;
generatesStatements
(
s
,
"var port;port=1;function(x,y,gen1_options){var port,start;port=gen1_options!==void 0&&Object.prototype.hasOwnProperty.call(gen1_options,'port')&&gen1_options.port!==void 0?gen1_options.port:80;start=gen1_options!==void 0&&Object.prototype.hasOwnProperty.call(gen1_options,'start')&&gen1_options.start!==void 0?gen1_options.start:true;y(x);return x;};"
)
;
}
)
;
it
(
'with splat parameters'
,
function
(
)
{
var
s
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'y'
]
)
,
cg
.
integer
(
1
)
)
,
cg
.
block
(
[
cg
.
variable
(
[
'x'
]
)
,
cg
.
variable
(
[
'y'
]
)
,
cg
.
splat
(
)
,
cg
.
variable
(
[
'z'
]
)
]
,
cg
.
statements
(
[
cg
.
functionCall
(
cg
.
variable
(
[
'y'
]
)
,
[
cg
.
variable
(
[
'x'
]
)
]
)
,
cg
.
variable
(
[
'z'
]
)
]
)
)
]
)
;
generatesStatements
(
s
,
"var y;y=1;function(x){var y=Array.prototype.slice.call(arguments,1,arguments.length-1);if(arguments.length>1){var z=arguments[arguments.length-1];}y(x);return z;};"
)
;
}
)
;
}
)
;
describe
(
'statements'
,
function
(
)
{
it
(
'with no statements'
,
function
(
)
{
var
st
=
cg
.
statements
(
[
]
)
;
generatesStatements
(
st
,
''
)
;
}
)
;
it
(
'with two statements'
,
function
(
)
{
var
st
=
cg
.
statements
(
[
cg
.
variable
(
[
'one'
]
)
,
cg
.
functionCall
(
cg
.
variable
(
[
'two'
]
)
,
[
]
)
]
)
;
generatesStatements
(
st
,
'one;two();'
)
;
}
)
;
it
(
'with two statements and a definition'
,
function
(
)
{
var
st
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'one'
]
)
,
cg
.
integer
(
9
)
)
,
cg
.
functionCall
(
cg
.
variable
(
[
'two'
]
)
,
[
]
)
]
)
;
generatesStatements
(
st
,
'var one;one=9;two();'
)
;
}
)
;
it
(
'chained definitions'
,
function
(
)
{
var
st
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'one'
]
)
,
cg
.
definition
(
cg
.
variable
(
[
'two'
]
)
,
cg
.
integer
(
9
)
)
)
]
)
;
generatesStatements
(
st
,
'var two,one;one=two=9;'
)
;
}
)
;
it
(
'with two definitions of the same variable'
,
function
(
)
{
var
st
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'x'
]
)
,
cg
.
integer
(
1
)
)
,
cg
.
definition
(
cg
.
variable
(
[
'x'
]
)
,
cg
.
integer
(
2
)
)
,
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
variable
(
[
'x'
]
)
]
)
]
)
;
generatesStatements
(
st
,
'var x;x=1;x=2;f(x);'
)
;
}
)
;
}
)
;
describe
(
'definition'
,
function
(
)
{
it
(
'as expression'
,
function
(
)
{
var
d
=
cg
.
definition
(
cg
.
variable
(
[
'one'
]
)
,
cg
.
integer
(
9
)
)
;
generatesExpression
(
d
,
'one=9'
)
;
}
)
;
it
(
'as hash entry'
,
function
(
)
{
var
d
=
cg
.
hash
(
[
cg
.
definition
(
cg
.
variable
(
[
'one'
]
)
,
cg
.
integer
(
9
)
)
.
hashEntry
(
)
]
)
;
generatesExpression
(
d
,
'{one:9}'
)
;
}
)
;
it
(
'of field'
,
function
(
)
{
var
d
=
cg
.
definition
(
cg
.
fieldReference
(
cg
.
variable
(
[
'object'
]
)
,
[
'field'
]
)
,
cg
.
integer
(
9
)
)
;
generatesExpression
(
d
,
'object.field=9'
)
;
}
)
;
it
(
'of reserved word field'
,
function
(
)
{
var
d
=
cg
.
definition
(
cg
.
fieldReference
(
cg
.
variable
(
[
'object'
]
)
,
[
'class'
]
)
,
cg
.
integer
(
9
)
)
;
generatesExpression
(
d
,
'object.class=9'
)
;
}
)
;
it
(
'of index'
,
function
(
)
{
var
d
=
cg
.
definition
(
cg
.
indexer
(
cg
.
variable
(
[
'array'
]
)
,
cg
.
integer
(
1
)
)
,
cg
.
integer
(
9
)
)
;
generatesExpression
(
d
,
'array[1]=9'
)
;
}
)
;
}
)
;
describe
(
'new operator'
,
function
(
)
{
it
(
'gnerates js new for function call'
,
function
(
)
{
var
n
=
cg
.
newOperator
(
cg
.
functionCall
(
cg
.
variable
(
[
'Stack'
]
)
,
[
cg
.
integer
(
8
)
]
)
)
;
generatesExpression
(
n
,
'new Stack(8)'
)
;
}
)
;
it
(
'new variable becomes new function call'
,
function
(
)
{
var
n
=
cg
.
newOperator
(
cg
.
variable
(
[
'Stack'
]
)
)
;
generatesExpression
(
n
,
'new Stack()'
)
;
}
)
;
}
)
;
it
(
'for in'
,
function
(
)
{
var
f
=
cg
.
statements
(
[
cg
.
forIn
(
cg
.
variable
(
[
'item'
]
)
,
cg
.
variable
(
[
'items'
]
)
,
cg
.
statements
(
[
cg
.
variable
(
[
'item'
]
)
]
)
)
]
)
;
generatesStatements
(
f
,
'var item;for(item in items){((function(item){item;})(item));}'
)
;
}
)
;
describe
(
'for'
,
function
(
)
{
it
(
'for'
,
function
(
)
{
var
f
=
cg
.
forStatement
(
cg
.
definition
(
cg
.
variable
(
[
'i'
]
)
,
cg
.
integer
(
0
)
)
,
cg
.
operator
(
'<'
,
[
cg
.
variable
(
[
'i'
]
)
,
cg
.
integer
(
10
)
]
)
,
cg
.
definition
(
cg
.
variable
(
[
'i'
]
)
,
cg
.
operator
(
'+'
,
[
cg
.
variable
(
[
'i'
]
)
,
cg
.
integer
(
1
)
]
)
)
,
cg
.
statements
(
[
cg
.
variable
(
[
'i'
]
)
]
)
)
;
generatesExpression
(
f
,
'for(i=0;(i<10);i=(i+1)){i;}'
)
;
}
)
;
}
)
;
it
(
'while'
,
function
(
)
{
var
w
=
cg
.
whileStatement
(
cg
.
variable
(
[
'c'
]
)
,
cg
.
statements
(
[
cg
.
variable
(
[
's'
]
)
]
)
)
;
generatesStatement
(
w
,
'while(c){s;}'
)
;
}
)
;
describe
(
'method call'
,
function
(
)
{
it
(
'method call'
,
function
(
)
{
var
m
=
cg
.
methodCall
(
cg
.
variable
(
[
'console'
]
)
,
[
'log'
]
,
[
cg
.
variable
(
[
'stuff'
]
)
]
)
;
generatesExpression
(
m
,
'console.log(stuff)'
)
;
}
)
;
it
(
'methods allow reserved words as names'
,
function
(
)
{
var
m
=
cg
.
methodCall
(
cg
.
variable
(
[
'console'
]
)
,
[
'class'
]
,
[
cg
.
variable
(
[
'stuff'
]
)
]
)
;
generatesExpression
(
m
,
'console.class(stuff)'
)
;
}
)
;
describe
(
'optional arguments'
,
function
(
)
{
it
(
'method call with optional argument'
,
function
(
)
{
var
m
=
cg
.
methodCall
(
cg
.
variable
(
[
'console'
]
)
,
[
'log'
]
,
[
cg
.
variable
(
[
'stuff'
]
)
,
cg
.
hashEntry
(
[
'port'
]
,
cg
.
integer
(
45
)
)
]
,
{
options
:
true
}
)
;
generatesExpression
(
m
,
'console.log(stuff,{port:45})'
)
;
}
)
;
}
)
;
}
)
;
it
(
'indexer'
,
function
(
)
{
var
m
=
cg
.
indexer
(
cg
.
variable
(
[
'array'
]
)
,
cg
.
variable
(
[
'stuff'
]
)
)
;
generatesExpression
(
m
,
'array[stuff]'
)
;
}
)
;
describe
(
'field reference'
,
function
(
)
{
it
(
'normal'
,
function
(
)
{
var
m
=
cg
.
fieldReference
(
cg
.
variable
(
[
'obj'
]
)
,
[
'field'
,
'name'
]
)
;
generatesExpression
(
m
,
'obj.fieldName'
)
;
}
)
;
it
(
'reserved words are allowed'
,
function
(
)
{
var
m
=
cg
.
fieldReference
(
cg
.
variable
(
[
'obj'
]
)
,
[
'class'
]
)
;
generatesExpression
(
m
,
'obj.class'
)
;
}
)
;
}
)
;
describe
(
'if'
,
function
(
)
{
it
(
'if statement'
,
function
(
)
{
var
m
=
cg
.
statements
(
[
cg
.
ifExpression
(
[
{
condition
:
cg
.
variable
(
[
'obj'
]
)
,
body
:
cg
.
statements
(
[
cg
.
variable
(
[
'stuff'
]
)
]
)
}
]
)
]
)
;
generatesStatements
(
m
,
'if(obj){stuff;}'
)
;
}
)
;
it
(
'if else if else statement'
,
function
(
)
{
var
m
=
cg
.
statements
(
[
cg
.
ifExpression
(
[
{
condition
:
cg
.
variable
(
[
'x'
,
'ok'
]
)
,
body
:
cg
.
statements
(
[
cg
.
variable
(
[
'x'
]
)
]
)
}
,
{
condition
:
cg
.
variable
(
[
'y'
,
'ok'
]
)
,
body
:
cg
.
statements
(
[
cg
.
variable
(
[
'y'
]
)
]
)
}
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'other'
,
'stuff'
]
)
]
)
)
]
)
;
generatesStatements
(
m
,
'if(xOk){x;}else if(yOk){y;}else{otherStuff;}'
)
;
}
)
;
it
(
'if else statement'
,
function
(
)
{
var
m
=
cg
.
statements
(
[
cg
.
ifExpression
(
[
{
condition
:
cg
.
variable
(
[
'obj'
]
)
,
body
:
cg
.
statements
(
[
cg
.
variable
(
[
'stuff'
]
)
]
)
}
]
,
cg
.
statements
(
[
cg
.
variable
(
[
'other'
,
'stuff'
]
)
]
)
)
]
)
;
generatesStatements
(
m
,
'if(obj){stuff;}else{otherStuff;}'
)
;
}
)
;
}
)
;
describe
(
'try'
,
function
(
)
{
it
(
'try catch'
,
function
(
)
{
var
t
=
cg
.
tryExpression
(
cg
.
statements
(
[
cg
.
variable
(
[
'a'
]
)
]
)
,
{
catchBody
:
cg
.
statements
(
[
cg
.
variable
(
[
'b'
]
)
]
)
,
catchParameter
:
cg
.
variable
(
[
'ex'
]
)
}
)
;
generatesStatement
(
t
,
'try{a;}catch(ex){b;}'
)
;
}
)
;
it
(
'try catch finally'
,
function
(
)
{
var
t
=
cg
.
tryExpression
(
cg
.
statements
(
[
cg
.
variable
(
[
'a'
]
)
]
)
,
{
catchBody
:
cg
.
statements
(
[
cg
.
variable
(
[
'b'
]
)
]
)
,
catchParameter
:
cg
.
variable
(
[
'ex'
]
)
,
finallyBody
:
cg
.
statements
(
[
cg
.
variable
(
[
'c'
]
)
]
)
}
)
;
generatesStatement
(
t
,
'try{a;}catch(ex){b;}finally{c;}'
)
;
}
)
;
it
(
'try finally'
,
function
(
)
{
var
t
=
cg
.
tryExpression
(
cg
.
statements
(
[
cg
.
variable
(
[
'a'
]
)
]
)
,
{
finallyBody
:
cg
.
statements
(
[
cg
.
variable
(
[
'b'
]
)
]
)
}
)
;
generatesStatement
(
t
,
'try{a;}finally{b;}'
)
;
}
)
;
}
)
;
describe
(
'list'
,
function
(
)
{
it
(
'with one element'
,
function
(
)
{
var
l
=
cg
.
list
(
[
cg
.
variable
(
[
'stuff'
]
)
]
)
;
generatesExpression
(
l
,
'[stuff]'
)
;
}
)
;
it
(
'with two elements'
,
function
(
)
{
var
l
=
cg
.
list
(
[
cg
.
variable
(
[
'stuff'
]
)
,
cg
.
variable
(
[
'more'
,
'stuff'
]
)
]
)
;
generatesExpression
(
l
,
'[stuff,moreStuff]'
)
;
}
)
;
it
(
'with no elements'
,
function
(
)
{
var
l
=
cg
.
list
(
[
]
)
;
generatesExpression
(
l
,
'[]'
)
;
}
)
;
}
)
;
describe
(
'hash'
,
function
(
)
{
it
(
'with one item'
,
function
(
)
{
var
h
=
cg
.
hash
(
[
cg
.
hashEntry
(
[
'street'
,
'address'
]
,
cg
.
variable
(
[
'address'
]
)
)
]
)
;
generatesExpression
(
h
,
'{streetAddress:address}'
)
;
}
)
;
it
(
'with two items, one with string field'
,
function
(
)
{
var
h
=
cg
.
hash
(
[
cg
.
hashEntry
(
[
'street'
,
'address'
]
,
cg
.
variable
(
[
'address'
]
)
)
,
cg
.
hashEntry
(
cg
.
string
(
'Content-Type'
)
,
cg
.
string
(
'text/plain'
)
)
]
)
;
generatesExpression
(
h
,
"{streetAddress:address,'Content-Type':'text/plain'}"
)
;
}
)
;
it
(
'with true item'
,
function
(
)
{
var
h
=
cg
.
hash
(
[
cg
.
hashEntry
(
[
'street'
,
'address'
]
,
cg
.
boolean
(
true
)
)
]
)
;
generatesExpression
(
h
,
"{streetAddress:true}"
)
;
}
)
;
}
)
;
describe
(
'symbol scope'
,
function
(
)
{
it
(
'variable defined in outer scope, assigned to in inner scope'
,
function
(
)
{
var
s
=
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'x'
]
)
,
cg
.
integer
(
1
)
)
,
cg
.
functionCall
(
cg
.
variable
(
[
'f'
]
)
,
[
cg
.
block
(
[
]
,
cg
.
statements
(
[
cg
.
definition
(
cg
.
variable
(
[
'x'
]
)
,
cg
.
integer
(
2
)
,
{
assignment
:
true
}
)
,
cg
.
variable
(
[
'x'
]
)
]
)
)
]
)
]
)
;
generatesStatements
(
s
,
'var x;x=1;f(function(){x=2;return x;});'
)
;
}
)
;
}
)
;
describe
(
'scope'
,
function
(
)
{
it
(
'places scope contents inside a function which is called immediately'
,
function
(
)
{
var
s
=
cg
.
scope
(
[
cg
.
definition
(
cg
.
variable
(
[
'a'
]
)
,
cg
.
integer
(
8
)
)
,
cg
.
variable
(
[
'a'
]
)
]
)
;
generatesExpression
(
s
,
'(function(){var a;a=8;return a;})()'
)
;
}
)
;
it
(
'if there is only one statement, it just generates that statement'
,
function
(
)
{
var
s
=
cg
.
scope
(
[
cg
.
variable
(
[
'a'
]
)
]
)
;
generatesExpression
(
s
,
'a'
)
;
}
)
;
}
)
;
}
)
;
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