Learning Dart
This commit is contained in:
284
dart/forth/.dart_tool/package_config.json
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284
dart/forth/.dart_tool/package_config.json
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@@ -0,0 +1,284 @@
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{
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"generated": "2023-04-06T15:26:04.782779Z",
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"generator": "pub",
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"generatorVersion": "2.19.6"
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}
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BIN
dart/forth/.dart_tool/pub/bin/test/test.dart-2.19.6.snapshot
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BIN
dart/forth/.dart_tool/pub/bin/test/test.dart-2.19.6.snapshot
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Binary file not shown.
BIN
dart/forth/.dart_tool/test/incremental_kernel.Ly9AZGFydD0yLjE4
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BIN
dart/forth/.dart_tool/test/incremental_kernel.Ly9AZGFydD0yLjE4
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Binary file not shown.
21
dart/forth/.exercism/config.json
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dart/forth/.exercism/config.json
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{
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"authors": [
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"matthewmorgan"
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],
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"contributors": [
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"AlexeyBukin",
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"kytrinyx"
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],
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"files": {
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"solution": [
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"lib/forth.dart"
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],
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"test": [
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"test/forth_test.dart"
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],
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"example": [
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".meta/lib/example.dart"
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]
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},
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"blurb": "Implement an evaluator for a very simple subset of Forth."
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}
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1
dart/forth/.exercism/metadata.json
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1
dart/forth/.exercism/metadata.json
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{"track":"dart","exercise":"forth","id":"557606834f504c0f83bb01fb309aed02","url":"https://exercism.org/tracks/dart/exercises/forth","handle":"br0xen","is_requester":true,"auto_approve":false}
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37
dart/forth/HELP.md
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37
dart/forth/HELP.md
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# Help
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||||
## Running the tests
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To run the tests:
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||||
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||||
```sh
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$ dart test
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```
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## Submitting your solution
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||||
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You can submit your solution using the `exercism submit lib/forth.dart` command.
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This command will upload your solution to the Exercism website and print the solution page's URL.
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||||
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||||
It's possible to submit an incomplete solution which allows you to:
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||||
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||||
- See how others have completed the exercise
|
||||
- Request help from a mentor
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||||
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||||
## Need to get help?
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||||
|
||||
If you'd like help solving the exercise, check the following pages:
|
||||
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||||
- The [Dart track's documentation](https://exercism.org/docs/tracks/dart)
|
||||
- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
|
||||
- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
|
||||
|
||||
Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
|
||||
|
||||
To get help if you're having trouble, you can use one of the following resources:
|
||||
|
||||
- [Dart API Documentation](https://api.dart.dev/)
|
||||
- [Dart Gitter Chat](https://gitter.im/dart-lang/home)
|
||||
- [Community Information](https://www.dart.dev/community)
|
||||
- [/r/dartlang](https://www.reddit.com/r/dartlang) is the Dart subreddit.
|
||||
- [StackOverflow](https://stackoverflow.com/questions/tagged/dart) can be used to search for your problem and see if it has been answered already. You can also ask and answer questions.
|
||||
39
dart/forth/README.md
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39
dart/forth/README.md
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||||
# Forth
|
||||
|
||||
Welcome to Forth on Exercism's Dart Track.
|
||||
If you need help running the tests or submitting your code, check out `HELP.md`.
|
||||
|
||||
## Instructions
|
||||
|
||||
Implement an evaluator for a very simple subset of Forth.
|
||||
|
||||
[Forth][forth]
|
||||
is a stack-based programming language.
|
||||
Implement a very basic evaluator for a small subset of Forth.
|
||||
|
||||
Your evaluator has to support the following words:
|
||||
|
||||
- `+`, `-`, `*`, `/` (integer arithmetic)
|
||||
- `DUP`, `DROP`, `SWAP`, `OVER` (stack manipulation)
|
||||
|
||||
Your evaluator also has to support defining new words using the customary syntax: `: word-name definition ;`.
|
||||
|
||||
To keep things simple the only data type you need to support is signed integers of at least 16 bits size.
|
||||
|
||||
You should use the following rules for the syntax: a number is a sequence of one or more (ASCII) digits, a word is a sequence of one or more letters, digits, symbols or punctuation that is not a number.
|
||||
(Forth probably uses slightly different rules, but this is close enough.)
|
||||
|
||||
Words are case-insensitive.
|
||||
|
||||
[forth]: https://en.wikipedia.org/wiki/Forth_%28programming_language%29
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||||
|
||||
## Source
|
||||
|
||||
### Created by
|
||||
|
||||
- @matthewmorgan
|
||||
|
||||
### Contributed to by
|
||||
|
||||
- @AlexeyBukin
|
||||
- @kytrinyx
|
||||
18
dart/forth/analysis_options.yaml
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18
dart/forth/analysis_options.yaml
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|
||||
analyzer:
|
||||
strong-mode:
|
||||
implicit-casts: false
|
||||
implicit-dynamic: false
|
||||
errors:
|
||||
unused_element: error
|
||||
unused_import: error
|
||||
unused_local_variable: error
|
||||
dead_code: error
|
||||
|
||||
linter:
|
||||
rules:
|
||||
# Error Rules
|
||||
- avoid_relative_lib_imports
|
||||
- avoid_types_as_parameter_names
|
||||
- literal_only_boolean_expressions
|
||||
- no_adjacent_strings_in_list
|
||||
- valid_regexps
|
||||
103
dart/forth/lib/forth.dart
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103
dart/forth/lib/forth.dart
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|
||||
class Forth {
|
||||
List<int> stack = <int>[];
|
||||
Map customCmds = Map<String, String>.of({});
|
||||
|
||||
List<int> evaluate(String input) {
|
||||
List<String> pts = input.toLowerCase().split(" ");
|
||||
for(int i = 0; i < pts.length; i++) {
|
||||
int? val = int.tryParse(pts[i]);
|
||||
if(val == null) {
|
||||
if(customCmds.containsKey(pts[i])) {
|
||||
return evaluate(customCmds[pts[i]]);
|
||||
} else {
|
||||
switch(pts[i]) {
|
||||
case ':': {
|
||||
_addCommand(pts.sublist(1));
|
||||
} break;
|
||||
case '+': {
|
||||
_add();
|
||||
} break;
|
||||
case '-': {
|
||||
_sub();
|
||||
} break;
|
||||
case '*': {
|
||||
_mult();
|
||||
} break;
|
||||
case '/': {
|
||||
_div();
|
||||
} break;
|
||||
case 'dup': {
|
||||
_dup();
|
||||
} break;
|
||||
case 'drop': {
|
||||
_drop();
|
||||
} break;
|
||||
case 'swap': {
|
||||
_swap();
|
||||
} break;
|
||||
case 'over': {
|
||||
_over();
|
||||
} break;
|
||||
default: {
|
||||
throw Exception('Unknown command');
|
||||
} break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
_push(val);
|
||||
}
|
||||
}
|
||||
return stack;
|
||||
}
|
||||
|
||||
int _pop() {
|
||||
if(stack.length > 0) {
|
||||
int wrk = stack.last;
|
||||
stack.removeLast();
|
||||
return wrk;
|
||||
} else {
|
||||
throw Exception('Stack empty');
|
||||
}
|
||||
}
|
||||
_push(int v) => stack.add(v);
|
||||
|
||||
_add() => _push(_pop() + _pop());
|
||||
_sub() {
|
||||
int v2 = _pop();
|
||||
int v1 = _pop();
|
||||
_push(v1 - v2);
|
||||
}
|
||||
_mult() => _push(_pop() * _pop());
|
||||
_div() {
|
||||
int v2 = _pop();
|
||||
int v1 = _pop();
|
||||
if(v2 == 0) {
|
||||
throw Exception('Division by zero');
|
||||
}
|
||||
_push((v1 / v2).toInt());
|
||||
}
|
||||
_dup() {
|
||||
int v1 = _pop();
|
||||
_push(v1);
|
||||
_push(v1);
|
||||
}
|
||||
_drop() => _pop();
|
||||
_swap() {
|
||||
int v2 = _pop();
|
||||
int v1 = _pop();
|
||||
_push(v2);
|
||||
_push(v1);
|
||||
}
|
||||
_over() {
|
||||
int v2 = _pop();
|
||||
int v1 = _pop();
|
||||
_push(v1);
|
||||
_push(v2);
|
||||
_push(v1);
|
||||
}
|
||||
|
||||
_addCommand(List<String> pts) {
|
||||
String keyword = pts[0];
|
||||
customCmds[keyword] = pts.sublist(1, pts.length-2).join(" ");
|
||||
}
|
||||
}
|
||||
365
dart/forth/pubspec.lock
Normal file
365
dart/forth/pubspec.lock
Normal file
@@ -0,0 +1,365 @@
|
||||
# Generated by pub
|
||||
# See https://dart.dev/tools/pub/glossary#lockfile
|
||||
packages:
|
||||
_fe_analyzer_shared:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: _fe_analyzer_shared
|
||||
sha256: a36ec4843dc30ea6bf652bf25e3448db6c5e8bcf4aa55f063a5d1dad216d8214
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "58.0.0"
|
||||
analyzer:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: analyzer
|
||||
sha256: cc4242565347e98424ce9945c819c192ec0838cb9d1f6aa4a97cc96becbc5b27
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "5.10.0"
|
||||
args:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: args
|
||||
sha256: "4cab82a83ffef80b262ddedf47a0a8e56ee6fbf7fe21e6e768b02792034dd440"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.4.0"
|
||||
async:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: async
|
||||
sha256: "947bfcf187f74dbc5e146c9eb9c0f10c9f8b30743e341481c1e2ed3ecc18c20c"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.11.0"
|
||||
boolean_selector:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: boolean_selector
|
||||
sha256: "6cfb5af12253eaf2b368f07bacc5a80d1301a071c73360d746b7f2e32d762c66"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.1"
|
||||
collection:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: collection
|
||||
sha256: "4a07be6cb69c84d677a6c3096fcf960cc3285a8330b4603e0d463d15d9bd934c"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.17.1"
|
||||
convert:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: convert
|
||||
sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.1.1"
|
||||
coverage:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: coverage
|
||||
sha256: "2fb815080e44a09b85e0f2ca8a820b15053982b2e714b59267719e8a9ff17097"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.6.3"
|
||||
crypto:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: crypto
|
||||
sha256: aa274aa7774f8964e4f4f38cc994db7b6158dd36e9187aaceaddc994b35c6c67
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.0.2"
|
||||
file:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: file
|
||||
sha256: "1b92bec4fc2a72f59a8e15af5f52cd441e4a7860b49499d69dfa817af20e925d"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "6.1.4"
|
||||
frontend_server_client:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: frontend_server_client
|
||||
sha256: "408e3ca148b31c20282ad6f37ebfa6f4bdc8fede5b74bc2f08d9d92b55db3612"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.2.0"
|
||||
glob:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: glob
|
||||
sha256: "4515b5b6ddb505ebdd242a5f2cc5d22d3d6a80013789debfbda7777f47ea308c"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.1"
|
||||
http_multi_server:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: http_multi_server
|
||||
sha256: "97486f20f9c2f7be8f514851703d0119c3596d14ea63227af6f7a481ef2b2f8b"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.2.1"
|
||||
http_parser:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: http_parser
|
||||
sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "4.0.2"
|
||||
io:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: io
|
||||
sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.0.4"
|
||||
js:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: js
|
||||
sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.6.7"
|
||||
logging:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: logging
|
||||
sha256: "04094f2eb032cbb06c6f6e8d3607edcfcb0455e2bb6cbc010cb01171dcb64e6d"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.1.1"
|
||||
matcher:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: matcher
|
||||
sha256: "6501fbd55da300384b768785b83e5ce66991266cec21af89ab9ae7f5ce1c4cbb"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.12.15"
|
||||
meta:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: meta
|
||||
sha256: "3c74dbf8763d36539f114c799d8a2d87343b5067e9d796ca22b5eb8437090ee3"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.9.1"
|
||||
mime:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: mime
|
||||
sha256: e4ff8e8564c03f255408decd16e7899da1733852a9110a58fe6d1b817684a63e
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.0.4"
|
||||
node_preamble:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: node_preamble
|
||||
sha256: "6e7eac89047ab8a8d26cf16127b5ed26de65209847630400f9aefd7cd5c730db"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.0.2"
|
||||
package_config:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: package_config
|
||||
sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.0"
|
||||
path:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: path
|
||||
sha256: "8829d8a55c13fc0e37127c29fedf290c102f4e40ae94ada574091fe0ff96c917"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.8.3"
|
||||
pool:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: pool
|
||||
sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.5.1"
|
||||
pub_semver:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: pub_semver
|
||||
sha256: "307de764d305289ff24ad257ad5c5793ce56d04947599ad68b3baa124105fc17"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.3"
|
||||
shelf:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: shelf
|
||||
sha256: c24a96135a2ccd62c64b69315a14adc5c3419df63b4d7c05832a346fdb73682c
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.4.0"
|
||||
shelf_packages_handler:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: shelf_packages_handler
|
||||
sha256: aef74dc9195746a384843102142ab65b6a4735bb3beea791e63527b88cc83306
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.0.1"
|
||||
shelf_static:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: shelf_static
|
||||
sha256: e792b76b96a36d4a41b819da593aff4bdd413576b3ba6150df5d8d9996d2e74c
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.1.1"
|
||||
shelf_web_socket:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: shelf_web_socket
|
||||
sha256: a988c0e8d8ffbdb8a28aa7ec8e449c260f3deb808781fe1284d22c5bba7156e8
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.0.3"
|
||||
source_map_stack_trace:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: source_map_stack_trace
|
||||
sha256: "84cf769ad83aa6bb61e0aa5a18e53aea683395f196a6f39c4c881fb90ed4f7ae"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.1"
|
||||
source_maps:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: source_maps
|
||||
sha256: "708b3f6b97248e5781f493b765c3337db11c5d2c81c3094f10904bfa8004c703"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.10.12"
|
||||
source_span:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: source_span
|
||||
sha256: "53e943d4206a5e30df338fd4c6e7a077e02254531b138a15aec3bd143c1a8b3c"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.10.0"
|
||||
stack_trace:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: stack_trace
|
||||
sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.11.0"
|
||||
stream_channel:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: stream_channel
|
||||
sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.1.1"
|
||||
string_scanner:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: string_scanner
|
||||
sha256: "556692adab6cfa87322a115640c11f13cb77b3f076ddcc5d6ae3c20242bedcde"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.2.0"
|
||||
term_glyph:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: term_glyph
|
||||
sha256: a29248a84fbb7c79282b40b8c72a1209db169a2e0542bce341da992fe1bc7e84
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.2.1"
|
||||
test:
|
||||
dependency: "direct dev"
|
||||
description:
|
||||
name: test
|
||||
sha256: "3dac9aecf2c3991d09b9cdde4f98ded7b30804a88a0d7e4e7e1678e78d6b97f4"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.24.1"
|
||||
test_api:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: test_api
|
||||
sha256: eb6ac1540b26de412b3403a163d919ba86f6a973fe6cc50ae3541b80092fdcfb
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.5.1"
|
||||
test_core:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: test_core
|
||||
sha256: "5138dbffb77b2289ecb12b81c11ba46036590b72a64a7a90d6ffb880f1a29e93"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "0.5.1"
|
||||
typed_data:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: typed_data
|
||||
sha256: "26f87ade979c47a150c9eaab93ccd2bebe70a27dc0b4b29517f2904f04eb11a5"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.3.1"
|
||||
vm_service:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: vm_service
|
||||
sha256: f6deed8ed625c52864792459709183da231ebf66ff0cf09e69b573227c377efe
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "11.3.0"
|
||||
watcher:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: watcher
|
||||
sha256: "6a7f46926b01ce81bfc339da6a7f20afbe7733eff9846f6d6a5466aa4c6667c0"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.0.2"
|
||||
web_socket_channel:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: web_socket_channel
|
||||
sha256: ca49c0bc209c687b887f30527fb6a9d80040b072cc2990f34b9bec3e7663101b
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.3.0"
|
||||
webkit_inspection_protocol:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: webkit_inspection_protocol
|
||||
sha256: "67d3a8b6c79e1987d19d848b0892e582dbb0c66c57cc1fef58a177dd2aa2823d"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.2.0"
|
||||
yaml:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: yaml
|
||||
sha256: "23812a9b125b48d4007117254bca50abb6c712352927eece9e155207b1db2370"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.1.1"
|
||||
sdks:
|
||||
dart: ">=2.19.0 <3.0.0"
|
||||
5
dart/forth/pubspec.yaml
Normal file
5
dart/forth/pubspec.yaml
Normal file
@@ -0,0 +1,5 @@
|
||||
name: 'forth'
|
||||
environment:
|
||||
sdk: '>=2.18.0 <3.0.0'
|
||||
dev_dependencies:
|
||||
test: '<2.0.0'
|
||||
396
dart/forth/test/forth_test.dart
Normal file
396
dart/forth/test/forth_test.dart
Normal file
@@ -0,0 +1,396 @@
|
||||
import 'package:forth/forth.dart';
|
||||
import 'package:test/test.dart';
|
||||
|
||||
final throwsEmptyStack = throwsA(isA<Exception>().having((e) => e.toString(), 'message', 'Exception: Stack empty'));
|
||||
final throwsInvalidDefinition =
|
||||
throwsA(isA<Exception>().having((e) => e.toString(), 'message', 'Exception: Invalid definition'));
|
||||
|
||||
void main() {
|
||||
group('Forth: parsing and numbers - ', parsingAndNumbers);
|
||||
group('Forth: addition - ', addition);
|
||||
group('Forth: subtraction - ', subtraction);
|
||||
group('Forth: multiplication - ', multiplication);
|
||||
group('Forth: division - ', division);
|
||||
group('Forth: combined arithmetic - ', combinedArithmetic);
|
||||
group('Forth: dup - ', dup);
|
||||
group('Forth: drop - ', drop);
|
||||
group('Forth: swap - ', swap);
|
||||
group('Forth: over - ', over);
|
||||
group('Forth: user-defined words - ', userDefinedWords);
|
||||
group('Forth: case-insensitivity - ', caseInsensitivity);
|
||||
}
|
||||
|
||||
void parsingAndNumbers() {
|
||||
test('numbers just get pushed onto the stack', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 3 4 5');
|
||||
expect(forth.stack, equals(<int>[1, 2, 3, 4, 5]));
|
||||
}, skip: false);
|
||||
|
||||
test('pushes negative numbers onto the stack', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('-1 -2 -3 -4 -5');
|
||||
expect(forth.stack, equals(<int>[-1, -2, -3, -4, -5]));
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void addition() {
|
||||
test('can add two numbers', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 +');
|
||||
expect(forth.stack, equals(<int>[3]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('+'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 +'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void subtraction() {
|
||||
test('can subtract two numbers', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('3 4 -');
|
||||
expect(forth.stack, equals(<int>[-1]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('-'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 -'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void multiplication() {
|
||||
test('can multiply two numbers', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('2 4 *');
|
||||
expect(forth.stack, equals(<int>[8]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('*'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 *'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void division() {
|
||||
test('can divide two numbers', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('12 3 /');
|
||||
expect(forth.stack, equals(<int>[4]));
|
||||
}, skip: false);
|
||||
|
||||
test('performs integer division', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('8 3 /');
|
||||
expect(forth.stack, equals(<int>[2]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if dividing by zero', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('4 0 /'),
|
||||
throwsA(isA<Exception>().having((e) => e.toString(), 'message', 'Exception: Division by zero')),
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('/'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 /'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void combinedArithmetic() {
|
||||
test('addition and subtraction', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 + 4 -');
|
||||
expect(forth.stack, equals(<int>[-1]));
|
||||
}, skip: false);
|
||||
|
||||
test('multiplication and division', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('2 4 * 3 /');
|
||||
expect(forth.stack, equals(<int>[2]));
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void dup() {
|
||||
test('copies a value on the stack', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 dup');
|
||||
expect(forth.stack, equals(<int>[1, 1]));
|
||||
}, skip: false);
|
||||
|
||||
test('copies the top value on the stack', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 dup');
|
||||
expect(forth.stack, equals(<int>[1, 2, 2]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('dup'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void drop() {
|
||||
test('removes the top value on the stack if it is the only one', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 drop');
|
||||
expect(forth.stack, equals(<int>[]));
|
||||
}, skip: false);
|
||||
|
||||
test('removes the top value on the stack if it is not the only one', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 drop');
|
||||
expect(forth.stack, equals(<int>[1]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('drop'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void swap() {
|
||||
test('swaps the top two values on the stack if they are the only ones', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 swap');
|
||||
expect(forth.stack, equals(<int>[2, 1]));
|
||||
}, skip: false);
|
||||
|
||||
test('swaps the top two values on the stack if they are not the only ones', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 3 swap');
|
||||
expect(forth.stack, equals(<int>[1, 3, 2]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('swap'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 swap'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void over() {
|
||||
test('copies the second element if there are only two', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 over');
|
||||
expect(forth.stack, equals(<int>[1, 2, 1]));
|
||||
}, skip: false);
|
||||
|
||||
test('copies the second element if there are more than two', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 3 over');
|
||||
expect(forth.stack, equals(<int>[1, 2, 3, 2]));
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is nothing on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('over'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
|
||||
test('errors if there is only one value on the stack', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('1 over'),
|
||||
throwsEmptyStack,
|
||||
);
|
||||
}, skip: false);
|
||||
}
|
||||
|
||||
void userDefinedWords() {
|
||||
test('can consist of built-in words', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': dup-twice dup dup ;');
|
||||
forth.evaluate('1 dup-twice');
|
||||
expect(forth.stack, equals(<int>[1, 1, 1]));
|
||||
}, skip: false);
|
||||
|
||||
test('execute in the right order', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': countup 1 2 3 ;');
|
||||
forth.evaluate('countup');
|
||||
expect(forth.stack, equals(<int>[1, 2, 3]));
|
||||
}, skip: true);
|
||||
|
||||
test('can override other user-defined words', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': foo dup ;');
|
||||
forth.evaluate(': foo dup dup ;');
|
||||
forth.evaluate('1 foo');
|
||||
expect(forth.stack, equals(<int>[1, 1, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('can override built-in words', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': swap dup ;');
|
||||
forth.evaluate('1 swap');
|
||||
expect(forth.stack, equals(<int>[1, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('can override built-in operators', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': + * ;');
|
||||
forth.evaluate('3 4 +');
|
||||
expect(forth.stack, equals(<int>[12]));
|
||||
}, skip: true);
|
||||
|
||||
test('can use different words with the same name', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': foo 5 ;');
|
||||
forth.evaluate(': bar foo ;');
|
||||
forth.evaluate(': foo 6 ;');
|
||||
forth.evaluate('bar foo');
|
||||
expect(forth.stack, equals(<int>[5, 6]));
|
||||
}, skip: true);
|
||||
|
||||
test('can define word that uses word with the same name', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': foo 10 ;');
|
||||
forth.evaluate(': foo foo 1 + ;');
|
||||
forth.evaluate('foo');
|
||||
expect(forth.stack, equals(<int>[11]));
|
||||
}, skip: true);
|
||||
|
||||
test('cannot redefine non-negative numbers', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate(': 1 2 ;'),
|
||||
throwsInvalidDefinition,
|
||||
);
|
||||
}, skip: true);
|
||||
|
||||
test('cannot redefine negative numbers', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate(': -1 2 ;'),
|
||||
throwsInvalidDefinition,
|
||||
);
|
||||
}, skip: true);
|
||||
|
||||
test('errors if executing a non-existent word', () {
|
||||
var forth = Forth();
|
||||
expect(
|
||||
() => forth.evaluate('foo'),
|
||||
throwsA(isA<Exception>().having((e) => e.toString(), 'message', 'Exception: Unknown command')),
|
||||
);
|
||||
}, skip: true);
|
||||
|
||||
test('only defines locally', () {
|
||||
var first = Forth();
|
||||
var second = Forth();
|
||||
first.evaluate(': + - ;');
|
||||
first.evaluate('1 1 +');
|
||||
second.evaluate('1 1 +');
|
||||
expect(
|
||||
[first.stack, second.stack],
|
||||
equals(<List<int>>[
|
||||
<int>[0],
|
||||
<int>[2]
|
||||
]));
|
||||
}, skip: true);
|
||||
}
|
||||
|
||||
void caseInsensitivity() {
|
||||
test('DUP is case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 DUP Dup dup');
|
||||
expect(forth.stack, equals(<int>[1, 1, 1, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('DROP is case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 3 4 DROP Drop drop');
|
||||
expect(forth.stack, equals(<int>[1]));
|
||||
}, skip: true);
|
||||
|
||||
test('SWAP is case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 SWAP 3 Swap 4 swap');
|
||||
expect(forth.stack, equals(<int>[2, 3, 4, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('OVER is case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate('1 2 OVER Over over');
|
||||
expect(forth.stack, equals(<int>[1, 2, 1, 2, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('user-defined words are case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': foo dup ;');
|
||||
forth.evaluate('1 FOO Foo foo');
|
||||
expect(forth.stack, equals(<int>[1, 1, 1, 1]));
|
||||
}, skip: true);
|
||||
|
||||
test('definitions are case-insensitive', () {
|
||||
var forth = Forth();
|
||||
forth.evaluate(': SWAP DUP Dup dup ;');
|
||||
forth.evaluate('1 swap');
|
||||
expect(forth.stack, equals(<int>[1, 1, 1, 1]));
|
||||
}, skip: true);
|
||||
}
|
||||
Reference in New Issue
Block a user