v0.4.2-alpha
[Fix][Impl] 为了消除类构造带来的语法歧义,同时保持实现简洁和括号省略的语法,自此版本,引入了 `new` 操作符
造成歧义的原方法:
if a == A{}
条件是 a == A,还是 a == A{} ?
因此,现在使用 new a_struct{}来构造类
[Opti] 相较于 Fig v0.4.1-alpha版本,release O3同编译条件下
Fib普通递归法性能提升 ~50%
具体方式:
增加了小整数优化,-128~127的整数现在会直接从IntPool获取而不是新构造
...忘了
[Fix] 类构造 shorthand模式忘写了,现在补上了
[Feat][Impl] 类型声明现在接受一个表达式,原为Identifier。实现 var start: time.Time = time.now() 的效果
这是符合语法和语言特性的支持,类型为一等公民。类似Python的 <class 'type'>
[Impl] 修改了部分错误输出的细节
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@@ -1,13 +1,12 @@
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#pragma once
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#include "Ast/astBase.hpp"
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#include <Ast/astBase.hpp>
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#include <Ast/ast.hpp>
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#include <Lexer/lexer.hpp>
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#include <Core/fig_string.hpp>
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#include <Error/error.hpp>
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#include <memory>
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#include <print>
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#include <source_location>
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#include <unordered_map>
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@@ -248,7 +247,7 @@ namespace Fig
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[[nodiscard]] SemicolonDisabler disableSemicolon() { return SemicolonDisabler(this); }
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void expectSemicolon()
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void expectSemicolon(std::source_location loc = std::source_location::current())
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{
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// if need semicolon and stream has `;`, consume it. if not need semicolon, do nothing
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@@ -263,18 +262,18 @@ namespace Fig
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}
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// normal semicolon check
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expectConsume(TokenType::Semicolon);
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expectConsume(TokenType::Semicolon, loc);
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}
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void expectConsume(TokenType type, FString expected)
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void expectConsume(TokenType type, FString expected, std::source_location loc = std::source_location::current())
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{
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expect(type, expected);
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expect(type, expected, loc);
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next();
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}
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void expectConsume(TokenType type)
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void expectConsume(TokenType type, std::source_location loc = std::source_location::current())
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{
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expect(type);
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expect(type, loc);
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next();
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}
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@@ -314,6 +313,8 @@ namespace Fig
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Ast::MapExpr __parseMapExpr(); // entry: current is `{`
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Ast::InitExpr __parseInitExpr(Ast::Expression); // entry: current is `{`, ahead is struct type exp.
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Ast::Expression __parseTupleOrParenExpr(); // entry: current is `(`
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Ast::FunctionLiteralExpr __parseFunctionLiteralExpr(); // entry: current is Token::LParen after Token::Function
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