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