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feat: 针对C的代码生成 (#50)

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Co-authored-by: Lan_G <2911328695@qq.com>
Reviewed-on: PostGuard/Canon#50
This commit is contained in:
jackfiled
2024-04-21 22:24:35 +08:00
parent 4353fb0c01
commit 3a584751dc
36 changed files with 906 additions and 31 deletions
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11
Canon.Tests/CCodeGeneratorTests/BasicTests.cs
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@@ -4,6 +4,7 @@ using Canon.Core.LexicalParser;
using Canon.Core.SyntaxNodes;
using Canon.Tests.GeneratedParserTests;
using Canon.Tests.Utils;
using Xunit.Abstractions;
namespace Canon.Tests.CCodeGeneratorTests;
@@ -11,6 +12,12 @@ public class BasicTests
{
private readonly IGrammarParser _parser = GeneratedGrammarParser.Instance;
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _outputHelper;
public BasicTests(ITestOutputHelper outputHelper)
{
_outputHelper = outputHelper;
}
[Fact]
public void ProgramStructTest()
@@ -28,6 +35,8 @@ public class BasicTests
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
Assert.Equal("#include <PascalCoreLib.h>", builder.Build());
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> int main(){statement; return 0;}", result);
}
}

90
Canon.Tests/CCodeGeneratorTests/DeclarationsTests.cs Normal file
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@@ -0,0 +1,90 @@
using Canon.Core.Abstractions;
using Canon.Core.CodeGenerators;
using Canon.Core.LexicalParser;
using Canon.Core.SyntaxNodes;
using Canon.Tests.GeneratedParserTests;
using Canon.Tests.Utils;
using Xunit.Abstractions;
namespace Canon.Tests.CCodeGeneratorTests;
public class DeclarationsTest
{
private readonly IGrammarParser _parser = GeneratedGrammarParser.Instance;
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _outputHelper;
public DeclarationsTest(ITestOutputHelper outputHelper)
{
_outputHelper = outputHelper;
}
[Fact]
public void VarDeclarationsTest()
{
CCodeBuilder builder = new();
const string program = """
program varTest;
var a, b, c, d: integer; m, n: real; k: boolean;
begin
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> char a; int main(){statement; return 0; }", result);
}
[Fact]
public void ConstDeclarationsTest()
{
CCodeBuilder builder = new();
const string program = """
program varTest;
const a = 1; b = 2; c = 3; d = 2.5;
begin
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> int main(){statement; return 0; }", result);
}
[Fact]
public void ArrayDeclarationsTest()
{
CCodeBuilder builder = new();
const string program = """
program arrayTest;
var a, b, c: array[1..6,5..8] of integer;
d: integer;
begin
a[2,3] := 10086;
d:=6;
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> int main(){statement; return 0; }", result);
}
}

47
Canon.Tests/CCodeGeneratorTests/ExpressionTests.cs Normal file
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@@ -0,0 +1,47 @@
using Canon.Core.Abstractions;
using Canon.Core.CodeGenerators;
using Canon.Core.LexicalParser;
using Canon.Core.SyntaxNodes;
using Canon.Tests.GeneratedParserTests;
using Canon.Tests.Utils;
using Xunit.Abstractions;
namespace Canon.Tests.CCodeGeneratorTests;
public class ExpressionTests
{
private readonly IGrammarParser _parser = GeneratedGrammarParser.Instance;
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _outputHelper;
public ExpressionTests(ITestOutputHelper outputHelper)
{
_outputHelper = outputHelper;
}
[Fact]
public void ExpressionTest1()
{
CCodeBuilder builder = new();
const string program = """
program varTest;
var a, b, c, d: integer; m, n: real; k: boolean;
begin
a := 1;
b := a + 6 * 9 + (a + 9) * 1 - (4 + a) * 5 / 1;
m := b / 3;
d := 9 mod 1;
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> char a; int main(){statement; return 0; }", result);
}
}

111
Canon.Tests/CCodeGeneratorTests/StatementTests.cs Normal file
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@@ -0,0 +1,111 @@
using Canon.Core.Abstractions;
using Canon.Core.CodeGenerators;
using Canon.Core.LexicalParser;
using Canon.Core.SyntaxNodes;
using Canon.Tests.GeneratedParserTests;
using Canon.Tests.Utils;
using Xunit.Abstractions;
namespace Canon.Tests.CCodeGeneratorTests;
public class StatementTests
{
private readonly IGrammarParser _parser = GeneratedGrammarParser.Instance;
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _outputHelper;
public StatementTests(ITestOutputHelper outputHelper)
{
_outputHelper = outputHelper;
}
[Fact]
public void VariableAssignTest()
{
CCodeBuilder builder = new();
const string program = """
program varAssignTest;
var a, b: integer;
begin
a := 1;
b := a;
a := b;
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> #include <stdbool.h> " +
"int a, b; int main(){ a = 1; b = a; a = b; return 0;}", result);
}
[Fact]
public void IfTest()
{
CCodeBuilder builder = new();
const string program = """
program main;
var
a,b:integer;
begin
if a = 5 then
begin
if b = 3 then
b := b + 1
else
b := b + 2
end
else
a := 2
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> #include <stdbool.h> int a, b; " +
"int main(){ a = 1; if( a == 1){ a = a + 1; } else{ b = a + 2 }; return 0;}", result);
}
[Fact]
public void ForLoopTest()
{
CCodeBuilder builder = new();
const string program = """
program ForLoopTest;
var a, b, c: integer;
begin
b := 1;
for a := b * 5 + 1 to 99 do
begin
c := a + 1;
b := a mod (a + c);
b := a + 1 - 1 * 1;
end;
end.
""";
IEnumerable<SemanticToken> tokens = _lexer.Tokenize(new StringSourceReader(program));
ProgramStruct root = _parser.Analyse(tokens);
root.GenerateCCode(builder);
string result = builder.Build();
_outputHelper.WriteLine(result);
Assert.Equal("#include <PascalCoreLib.h> #include <stdbool.h> int a, b; " +
"int main(){ a = 1; if( a == 1){ a = a + 1; } else{ b = a + 2 }; return 0;}", result);
}
}