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* done

* removed validation that checks buffer is unwritted case sucess if false
dotnet/runtime#95012

* minor adjusts
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leandromoh authored Nov 20, 2023
1 parent 6f305da commit c2d7561
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Showing 9 changed files with 23 additions and 29 deletions.
6 changes: 4 additions & 2 deletions README.md
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Expand Up @@ -14,10 +14,10 @@ Even the focus of this library being data mapping to objects (classes, structs,

## RecordParser is a Zero Allocation Writer/Reader Parser for .NET Core

1. It supports .NET 6, 7 and .NET Standard 2.1
1. It supports .NET 6, 7, 8 and .NET Standard 2.1
2. It has minimal heap allocations because it does intense use of [Span](https://docs.microsoft.com/en-us/archive/msdn-magazine/2018/january/csharp-all-about-span-exploring-a-new-net-mainstay) type, a .NET type designed to have high-performance and reduce memory allocations [(see benchmark)](/Benchmark.md)
3. It is even more performant because the relevant code is generated using [expression trees](https://docs.microsoft.com/dotnet/csharp/expression-trees), which once compiled is fast as handwriting code
4. It supports parse for ANY type: classes, structs, records, arrays, tuples etc.
4. It supports parse for ANY type: classes, structs, records, arrays, tuples etc
5. It supports to map values for properties, fields, indexers, etc.
6. It does not do [boxing](https://docs.microsoft.com/dotnet/csharp/programming-guide/types/boxing-and-unboxing) for structs.
7. It is flexible: you can choose the most convenient way to configure each of your parsers: indexed or sequential configuration
Expand Down Expand Up @@ -58,6 +58,8 @@ Third Party Benchmarks

*ㅤyou can use a "string pool" to avoid creating multiple instances of strings with same content.

NOTE: MOST EXAMPLES USE TUPLES FOR SIMPLICITY. PARSER ACTUALLY WORKS FOR ANY TYPE (CLASSES, STRUCTS, RECORDS, ARRAYS, TUPLES, ETC)

## Fixed Length Reader
There are 2 flavors for mapping: indexed or sequential.

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4 changes: 2 additions & 2 deletions RecordParser.Benchmark/RecordParser.Benchmark.csproj
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Expand Up @@ -2,8 +2,8 @@

<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFrameworks>net7.0</TargetFrameworks>
<LangVersion>10</LangVersion>
<TargetFrameworks>net8.0</TargetFrameworks>
<LangVersion>latest</LangVersion>
<!--<DefineConstants>TEST_ALL</DefineConstants>-->
</PropertyGroup>

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9 changes: 1 addition & 8 deletions RecordParser.Test/FixedLengthWriterBuilderTest.cs
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Expand Up @@ -62,7 +62,7 @@ public void Given_value_using_standard_format_should_parse_without_extra_configu
[InlineData(48)]
[InlineData(01)]
[InlineData(00)]
public void Given_destination_shorter_than_max_position_especified_should_write_nothing(int destinationSize)
public void Given_destination_shorter_than_max_position_especified_then_chars_written_should_be_zero(int destinationSize)
{
// Arrange

Expand All @@ -88,7 +88,6 @@ public void Given_destination_shorter_than_max_position_especified_should_write_

success.Should().BeFalse();
charsWritten.Should().Be(0);
destination.ToString().Should().Be(new string(default, destinationSize));
}

[Fact]
Expand All @@ -115,11 +114,8 @@ public void Given_string_value_larger_than_designated_space_should_write_until_r
success.Should().BeFalse();

var result = destination.Slice(0, charsWritten);
var unwritted = destination.Slice(charsWritten);
var freeSpace = destination.Length - charsWritten;

result.Should().Be("2020.05.23");
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
Expand All @@ -146,11 +142,8 @@ public void Given_non_string_value_larger_than_designated_space_should_write_unt
success.Should().BeFalse();

var result = destination.Slice(0, charsWritten);
var unwritted = destination.Slice(charsWritten);
var freeSpace = destination.Length - charsWritten;

result.Should().Be("foo bar baz----");
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
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9 changes: 1 addition & 8 deletions RecordParser.Test/FixedLengthWriterSequentialBuilderTest.cs
Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@ public void Given_value_using_standard_format_should_parse_without_extra_configu
[InlineData(48)]
[InlineData(01)]
[InlineData(00)]
public void Given_destination_shorter_than_max_position_especified_should_write_nothing(int destinationSize)
public void Given_destination_shorter_than_max_position_especified_then_chars_written_should_be_zero(int destinationSize)
{
// Arrange

Expand Down Expand Up @@ -92,7 +92,6 @@ public void Given_destination_shorter_than_max_position_especified_should_write_

success.Should().BeFalse();
charsWritten.Should().Be(0);
destination.ToString().Should().Be(new string(default, destinationSize));
}

[Fact]
Expand Down Expand Up @@ -120,11 +119,8 @@ public void Given_string_value_larger_than_designated_space_should_write_until_r
success.Should().BeFalse();

var result = destination.Slice(0, charsWritten);
var unwritted = destination.Slice(charsWritten);
var freeSpace = destination.Length - charsWritten;

result.Should().Be("2020.05.23");
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
Expand Down Expand Up @@ -152,11 +148,8 @@ public void Given_non_string_value_larger_than_designated_space_should_write_unt
success.Should().BeFalse();

var result = destination.Slice(0, charsWritten);
var unwritted = destination.Slice(charsWritten);
var freeSpace = destination.Length - charsWritten;

result.Should().Be("foo bar baz----");
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
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4 changes: 2 additions & 2 deletions RecordParser.Test/RecordParser.Test.csproj
Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<TargetFrameworks>net7.0</TargetFrameworks>
<LangVersion>11</LangVersion>
<TargetFrameworks>net8.0</TargetFrameworks>
<LangVersion>latest</LangVersion>
<IsPackable>false</IsPackable>
</PropertyGroup>

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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,9 @@ public void Given_text_shorter_than_destination_should_not_write(string value, i
var freeSpace = destination.Length - charsWritten;

result.Should().Be(expected);
unwritted.Should().Be(new string(default, freeSpace));

if (success)
unwritted.Should().Be(new string(default, freeSpace));
}

public enum MapTextType
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4 changes: 3 additions & 1 deletion RecordParser.Test/VariableLengthWriterBuilderTest.cs
Original file line number Diff line number Diff line change
Expand Up @@ -205,7 +205,9 @@ public void Given_too_short_destination_should_write_while_have_enough_space(int
var freeSpace = destination.Length - charsWritten;

result.Should().Be(expected);
unwritted.Should().Be(new string(default, freeSpace));

if (success)
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
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Original file line number Diff line number Diff line change
Expand Up @@ -211,7 +211,9 @@ public void Given_too_short_destination_should_write_while_have_enough_space(int
var freeSpace = destination.Length - charsWritten;

result.Should().Be(expected);
unwritted.Should().Be(new string(default, freeSpace));

if (success)
unwritted.Should().Be(new string(default, freeSpace));
}

[Fact]
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8 changes: 4 additions & 4 deletions RecordParser/RecordParser.csproj
Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,8 @@

<PropertyGroup>
<PackageId>RecordParser</PackageId>
<TargetFrameworks>netstandard2.1;net6.0;net7.0</TargetFrameworks>
<LangVersion>10</LangVersion>
<TargetFrameworks>netstandard2.1;net6.0;net7.0;net8.0</TargetFrameworks>
<LangVersion>latest</LangVersion>
<Authors>Leandro Fernandes Vieira (leandromoh)</Authors>
<Description>
RecordParser is a expression tree based parser that helps you to write maintainable parsers with high-performance and zero allocations, thanks to Span type.
Expand All @@ -14,7 +14,7 @@
<PackageProjectUrl>https://github.com/leandromoh/RecordParser</PackageProjectUrl>
<RepositoryUrl>https://github.com/leandromoh/RecordParser</RepositoryUrl>
<PackageTags>tsv parser performance csv mapper file flat reader dotnet-core span flatfile expression-tree delimited fixedlength</PackageTags>
<Version>2.2.1</Version>
<Version>2.3.0</Version>
<PackageReleaseNotes>
https://github.com/leandromoh/RecordParser/blob/master/release_notes.md
</PackageReleaseNotes>
Expand All @@ -38,7 +38,7 @@

<PropertyGroup Condition="
( '$(Configuration)' == 'Debug' OR '$(Configuration)' == 'Release') AND
( '$(TargetFramework)' == 'net5.0' OR '$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net7.0') AND
( '$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net7.0' OR '$(TargetFramework)' == 'net8.0') AND
( '$(Platform)' == 'AnyCPU') ">
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
</PropertyGroup>
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