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jashkenas--coffeescript/test/argument_parsing.coffee
Geoffrey Booth 8a25195442
AST flag/API option; generic AST output for all nodes (#5044)
* Add `nodes` option to Node API, that returns POJO representation of AST; starting point for toPlainObject method on node classes to return the serializable plain JavaScript object representation of each node

* Make --nodes also return JSON (pretty-printed, though not colorized)

* Alphabetize CLI flags

* Use new `ast` flag to request AST, restoring prior `nodes` flag; rename toPlainObject to toJSON
2018-06-11 19:50:40 -07:00

144 lines
4.6 KiB
CoffeeScript

return unless require?
{buildCSOptionParser} = require '../lib/coffeescript/command'
optionParser = buildCSOptionParser()
sameOptions = (opts1, opts2, msg) ->
ownKeys = Object.keys(opts1).sort()
otherKeys = Object.keys(opts2).sort()
arrayEq ownKeys, otherKeys, msg
for k in ownKeys
arrayEq opts1[k], opts2[k], msg
yes
test "combined options are not split after initial file name", ->
argv = ['some-file.coffee', '-bc']
parsed = optionParser.parse argv
expected = arguments: ['some-file.coffee', '-bc']
sameOptions parsed, expected
argv = ['some-file.litcoffee', '-bc']
parsed = optionParser.parse argv
expected = arguments: ['some-file.litcoffee', '-bc']
sameOptions parsed, expected
argv = ['-c', 'some-file.coffee', '-bc']
parsed = optionParser.parse argv
expected =
compile: yes
arguments: ['some-file.coffee', '-bc']
sameOptions parsed, expected
argv = ['-bc', 'some-file.coffee', '-bc']
parsed = optionParser.parse argv
expected =
bare: yes
compile: yes
arguments: ['some-file.coffee', '-bc']
sameOptions parsed, expected
test "combined options are not split after a '--', which is discarded", ->
argv = ['--', '-bc']
parsed = optionParser.parse argv
expected =
doubleDashed: yes
arguments: ['-bc']
sameOptions parsed, expected
argv = ['-bc', '--', '-bc']
parsed = optionParser.parse argv
expected =
bare: yes
compile: yes
doubleDashed: yes
arguments: ['-bc']
sameOptions parsed, expected
test "options are not split after any '--'", ->
argv = ['--', '--', '-bc']
parsed = optionParser.parse argv
expected =
doubleDashed: yes
arguments: ['--', '-bc']
sameOptions parsed, expected
argv = ['--', 'some-file.coffee', '--', 'arg']
parsed = optionParser.parse argv
expected =
doubleDashed: yes
arguments: ['some-file.coffee', '--', 'arg']
sameOptions parsed, expected
argv = ['--', 'arg', 'some-file.coffee', '--', '-bc']
parsed = optionParser.parse argv
expected =
doubleDashed: yes
arguments: ['arg', 'some-file.coffee', '--', '-bc']
sameOptions parsed, expected
test "any non-option argument stops argument parsing", ->
argv = ['arg', '-bc']
parsed = optionParser.parse argv
expected = arguments: ['arg', '-bc']
sameOptions parsed, expected
test "later '--' are not removed", ->
argv = ['some-file.coffee', '--', '-bc']
parsed = optionParser.parse argv
expected = arguments: ['some-file.coffee', '--', '-bc']
sameOptions parsed, expected
test "throw on invalid options", ->
argv = ['-k']
throws -> optionParser.parse argv
argv = ['-ck']
throws (-> optionParser.parse argv), /multi-flag/
argv = ['-kc']
throws (-> optionParser.parse argv), /multi-flag/
argv = ['-oc']
throws (-> optionParser.parse argv), /needs an argument/
argv = ['-o']
throws (-> optionParser.parse argv), /value required/
argv = ['-co']
throws (-> optionParser.parse argv), /value required/
# Check if all flags in a multi-flag are recognized before checking if flags
# before the last need arguments.
argv = ['-ok']
throws (-> optionParser.parse argv), /unrecognized option/
test "has expected help text", ->
ok optionParser.help() is '''
Usage: coffee [options] path/to/script.coffee [args]
If called without options, `coffee` will run your script.
--ast generate an abstract syntax tree of nodes
-b, --bare compile without a top-level function wrapper
-c, --compile compile to JavaScript and save as .js files
-e, --eval pass a string from the command line as input
-h, --help display this help message
-i, --interactive run an interactive CoffeeScript REPL
-j, --join concatenate the source CoffeeScript before compiling
-l, --literate treat stdio as literate style coffeescript
-m, --map generate source map and save as .js.map files
-M, --inline-map generate source map and include it directly in output
-n, --nodes print out the parse tree that the parser produces
--nodejs pass options directly to the "node" binary
--no-header suppress the "Generated by" header
-o, --output set the output path or path/filename for compiled JavaScript
-p, --print print out the compiled JavaScript
-r, --require require the given module before eval or REPL
-s, --stdio listen for and compile scripts over stdio
-t, --transpile pipe generated JavaScript through Babel
--tokens print out the tokens that the lexer/rewriter produce
-v, --version display the version number
-w, --watch watch scripts for changes and rerun commands
'''