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Alexander Aprelev 38ec554d6b Revert "[samples/ffi] Generate sqlite3 bindings with package:ffigen" This reverts commit `af4940fc57` as it broke flutter engine license script, engine autoroller - it introduced dart file with unrecognizable license. Bug: https://bugs.chromium.org/p/skia/issues/detail?id=10598 Change-Id: I351931808316638d9bbc1b18aaf5a2525f04ee6b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/158108 Reviewed-by: Alexander Aprelev <aam@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>		2020-08-11 19:38:18 +00:00
..
docs	[samples/ffi] Fix samples and run them as test	2019-10-23 22:20:37 +00:00
example	[vm/ffi] Deprecate Pointer.allocate/free.	2019-10-10 13:17:43 +00:00
lib	Revert "[samples/ffi] Generate sqlite3 bindings with package:ffigen"	2020-08-11 19:38:18 +00:00
test	Revert "[samples/ffi] Generate sqlite3 bindings with package:ffigen"	2020-08-11 19:38:18 +00:00
.gitignore	Revert "[samples/ffi] Generate sqlite3 bindings with package:ffigen"	2020-08-11 19:38:18 +00:00
pubspec.yaml	Revert "[samples/ffi] Generate sqlite3 bindings with package:ffigen"	2020-08-11 19:38:18 +00:00
README.md	Fixed #39679 make sqlite ffi sample run success	2019-12-12 09:04:11 +00:00

README.md

Sample code dart:ffi

This is an illustrative sample for how to use dart:ffi.

Prerequirement

For Windows, Linux, and MacOS, you should make sure, sqlite dev lib installed on your system.

Windows user can download dll from https://www.sqlite.org/download.html

If you do not have any sqlite3.dll or so file, you may found error message:

Unhandled exception:
Invalid argument(s): Failed to load dynamic library (126)
#0      _open (dart:ffi-patch/ffi_dynamic_library_patch.dart:13:55)
#1      new DynamicLibrary.open (dart:ffi-patch/ffi_dynamic_library_patch.dart:22:12)

Building and Running this Sample

Building and running this sample is done through pub. Running pub get and pub run example/main should produce the following output.

$ pub get
Resolving dependencies... (6.8s)
+ analyzer 0.35.4
...
+ yaml 2.1.15
Downloading analyzer 0.35.4...
Downloading kernel 0.3.14...
Downloading front_end 0.1.14...
Changed 47 dependencies!
Precompiling executables... (18.0s)
Precompiled test:test.

$ pub run example/main
1 Chocolade chip cookie Chocolade cookie foo
2 Ginger cookie null 42
3 Cinnamon roll null null
1 Chocolade chip cookie Chocolade cookie foo
2 Ginger cookie null 42
expected exception on accessing result data after close: The result has already been closed.
expected this query to fail: no such column: non_existing_column (Code 1: SQL logic error)

Tutorial

A tutorial walking through the code is available in docs/sqlite-tutorial.md. For information on how to use this package within a Flutter app, see docs/android.md. (Note: iOS is not yet supported).