Note that, at least for now, CoffeeScript's own REPL *CLI* still uses a
non-global context, rendering modules such as `color`, which attempt to
modify the prototypes of JavaScript primitives, ineffective. By
contrast, node's own CLI does use the global context.
This solves two potential problems when it comes to forking:
1) Forking will now work correctly even when `coffee` is not installed
globally.
2) Forking when using a locally installed version of `coffee` will fork
using that version, and not fallback to a globally installed version.
Fixes#2957
This makes the "stack" property more useful when it's shown on other Node.js applications that compile CoffeeScript (e.g. testing libraries) and should fix#3023. A minimal example:
$ node -e 'require("coffee-script").compile("class class")'
/usr/lib/node_modules/coffee-script/lib/coffee-script/coffee-script.js:41
throw err;
^
[stdin]:1:7: error: unexpected CLASS
class class
^^^^^
Instead of throwing the syntax errors with their source file location and needing to then catch them and call a `prettyErrorMessage` function in order to get the formatted error message, now syntax errors know how to pretty-print themselves (their `toString` method gets overridden).
An intermediate `catch` & re-`throw` is needed at the level of `CoffeeScript.compile` and friends. But the benefit of this approach is that now libraries that use the `CoffeeScript` object directly don't need to bother catching the possible compilation errors and calling a special function in order to get the nice error messages; they can just print the error itself (or let it bubble up) and the error will know how to pretty-print itself.
* Supplement missing block before `ELSE` token only for multi-line `if`.
* Don't prematurely remove `TERMINATOR` before `ELSE` (so we can differentiate single- and multi-line forms).
* Cleanup: Remove `WHEN` from `EXPRESSION_CLOSE`. (Only `LEADING_WHEN` tokens are preceded by a `TERMINATOR`.)
* Cleanup: Remove really old, inapplicable text from comment.
The history file was set to close on process exit, when it
should close on REPL exit. Listening to the process exit
event causes a warning when more than 10 CoffeeScript REPL
instances are opened in the same program, which happens in
the test.
