wren/test/language/function/declaration_syntax.wren

// Single expression body.
fn a() { "ok" }
System.print(a()) // expect: ok

// Curly body.
fn b() {
  System.print("ok") // expect: ok
}
b()

// Multiple statements.
fn c() {
  System.print("1") // expect: 1
  System.print("2") // expect: 2
}
c()

// Extra newlines.
fn d() {


  System.print("1") // expect: 1


  System.print("2") // expect: 2


}
d()

// TODO: Newlines before/after parameters.
Change syntax for blocks -> fns. 2013-11-06 07:47:47 -08:00			`// Single expression body.`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`fn a() { "ok" }`
			`System.print(a()) // expect: ok`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00
Change syntax for blocks -> fns. 2013-11-06 07:47:47 -08:00			`// Curly body.`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`fn b() {`
"IO" -> "System". Get rid of the separate opt-in IO class and replace it with a core System class. - Remove wren_io.c, wren_io.h, and io.wren. - Remove the flags that disable it. - Remove the overloads for print() with different arity. (It was an experiment, but I don't think it's that useful.) - Remove IO.read(). That will reappear using libuv in the CLI at some point. - Remove IO.time. Doesn't seem to have been used. - Update all of the tests, docs, etc. I'm sorry for all the breakage this causes, but I think "System" is a better name for this class (it makes it natural to add things like "System.gc()") and frees up "IO" for referring to the CLI's IO module. 2015-09-15 07:46:09 -07:00			`System.print("ok") // expect: ok`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`}`
			`b()`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00
Unify body handling. Blocks, functions, and methods now have the same code for handling their bodies. This means that single-line methods work like single-line functions: they return the result of their expression. 2014-04-03 07:48:19 -07:00			`// Multiple statements.`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`fn c() {`
"IO" -> "System". Get rid of the separate opt-in IO class and replace it with a core System class. - Remove wren_io.c, wren_io.h, and io.wren. - Remove the flags that disable it. - Remove the overloads for print() with different arity. (It was an experiment, but I don't think it's that useful.) - Remove IO.read(). That will reappear using libuv in the CLI at some point. - Remove IO.time. Doesn't seem to have been used. - Update all of the tests, docs, etc. I'm sorry for all the breakage this causes, but I think "System" is a better name for this class (it makes it natural to add things like "System.gc()") and frees up "IO" for referring to the CLI's IO module. 2015-09-15 07:46:09 -07:00			`System.print("1") // expect: 1`
			`System.print("2") // expect: 2`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`}`
			`c()`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00
			`// Extra newlines.`
Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`fn d() {`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00

"IO" -> "System". Get rid of the separate opt-in IO class and replace it with a core System class. - Remove wren_io.c, wren_io.h, and io.wren. - Remove the flags that disable it. - Remove the overloads for print() with different arity. (It was an experiment, but I don't think it's that useful.) - Remove IO.read(). That will reappear using libuv in the CLI at some point. - Remove IO.time. Doesn't seem to have been used. - Update all of the tests, docs, etc. I'm sorry for all the breakage this causes, but I think "System" is a better name for this class (it makes it natural to add things like "System.gc()") and frees up "IO" for referring to the CLI's IO module. 2015-09-15 07:46:09 -07:00			`System.print("1") // expect: 1`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00

"IO" -> "System". Get rid of the separate opt-in IO class and replace it with a core System class. - Remove wren_io.c, wren_io.h, and io.wren. - Remove the flags that disable it. - Remove the overloads for print() with different arity. (It was an experiment, but I don't think it's that useful.) - Remove IO.read(). That will reappear using libuv in the CLI at some point. - Remove IO.time. Doesn't seem to have been used. - Update all of the tests, docs, etc. I'm sorry for all the breakage this causes, but I think "System" is a better name for this class (it makes it natural to add things like "System.gc()") and frees up "IO" for referring to the CLI's IO module. 2015-09-15 07:46:09 -07:00			`System.print("2") // expect: 2`
Start hacking on "if" expressions. 2013-11-05 15:40:21 -08:00

Add syntax for named function declarations. This is technically redundant since it's equivalent to: var f = Fn.new { ... } But it seems worth adding if we're going to make functions and a functional/procedural style intuitive and natural in Wren. It's a bit of sugar, but it doesn't hurt much to add and makes the code read a lot better. 2015-11-27 12:20:15 -08:00			`}`
			`d()`
Add an anonymous expression fn syntax. 2015-11-27 21:17:34 -08:00
			`// TODO: Newlines before/after parameters.`