jackfiled
5e3ea6303e
重构语法树的部分，使用单独的类来抽象不同的非终结符节点。 **同时**，将`Pascal`语法的定义从测试项目中移动到核心项目中，在项目中只维护一份对于`Pascal`语法的定义。 Reviewed-on: PostGuard/Canon#23
47 lines
1.2 KiB
C#
47 lines
1.2 KiB
C#
using Canon.Core.Abstractions;
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using Canon.Core.Enums;
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using Canon.Core.GrammarParser;
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using Canon.Core.LexicalParser;
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using Canon.Core.SyntaxNodes;
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namespace Canon.Tests.GrammarParserTests;
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public class PascalGrammarTests
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{
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private readonly GrammarBuilder _builder = new()
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{
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Generators = PascalGrammar.Grammar, Begin = new NonTerminator(NonTerminatorType.StartNonTerminator)
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};
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private readonly GrammarParserBase _parser;
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public PascalGrammarTests()
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{
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Grammar grammar = _builder.Build();
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_parser = grammar.ToGrammarParser();
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}
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[Fact]
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public void GrammarTest()
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{
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Assert.NotNull(_parser);
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}
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[Fact]
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public void DoNothingTest()
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{
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const string program = """
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program DoNothing;
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begin
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end.
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""";
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Lexer lexer = new(program);
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List<SemanticToken> tokens = lexer.Tokenize();
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tokens.Add(SemanticToken.End);
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ProgramStruct root = _parser.Analyse(tokens).Convert<ProgramStruct>();
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Assert.Equal("DoNothing", root.Head.ProgramName.LiteralValue);
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}
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}
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