zhusenlin/serein-flow
1
0
Fork 0
mirror of https://gitee.com/langsisi_admin/serein-flow synced 2026-03-03 08:10:47 +08:00
Code Issues Packages Projects Releases Wiki Activity

允许隐式声明变量（不用let关键字声明变量）

Browse Source
This commit is contained in:
fengjiayi
2025-07-11 23:43:27 +08:00
parent ec764c5675
commit 6141d2c1c1
3 changed files with 141 additions and 376 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
Serein.Script/SereinScriptParser.cs
View File

@@ -182,7 +182,7 @@ namespace Serein.Script
}
else // if (tempToken2.Type == TokenType.SquareBracketsRight)
{
int_type = 1; // 变量数组赋值
int_type = 1; // 变量赋值
break;
}
}
@@ -195,6 +195,12 @@ namespace Serein.Script
break;
}
}
if(tempToken.Type == TokenType.ParenthesisLeft) // 本地函数调用
{
int_type = 4; // 本地方法调用
break;
}
}
if(int_type == 1) // 赋值 MemberAssignmentNode
{
@@ -204,6 +210,9 @@ namespace Serein.Script
if(peekToken.Type == TokenType.Operator && peekToken.Value == "=")
{
// 变量赋值
_currentToken = _lexer.NextToken(); // 消耗 变量名
_currentToken = _lexer.NextToken(); // 消耗 “=”
var valueNode = BooleanExpression();
var assignmentNode = new AssignmentNode(objectNode, valueNode).SetTokenInfo(_currentToken);
return assignmentNode;
@@ -286,6 +295,16 @@ namespace Serein.Script
else if (int_type == 2) // 方法调用
{
var taretNode = "";
}
else if (int_type == 3) // 方法调用
{
var taretNode = "";
}
else if (int_type == 4) // 方法调用
{
// 可能是挂载函数调用
var functionCallNode = ParseFunctionCall();
return functionCallNode;
}
else
{
@@ -958,52 +977,6 @@ namespace Serein.Script
return new WhileNode(condition, body).SetTokenInfo(_currentToken);
}
/* /// <summary>
/// 解析表达式。
/// </summary>
/// <returns></returns>
private ASTNode Expression()
{
ASTNode left = Term();
while (_currentToken.Type == TokenType.Operator && (
_currentToken.Value == "+" || _currentToken.Value == "-"))
{
string op = _currentToken.Value.ToString();
_currentToken = _lexer.NextToken();
ASTNode right = Term();
left = new BinaryOperationNode(left, op, right).SetTokenInfo(_currentToken);
}
while (_currentToken.Type == TokenType.Operator && (_currentToken.Value == "*" || _currentToken.Value == "/"))
{
string op = _currentToken.Value.ToString();
_currentToken = _lexer.NextToken();
ASTNode right = Term();
left = new BinaryOperationNode(left, op, right).SetTokenInfo(_currentToken);
}
return left;
}
/// <summary>
/// 解析项（Term），比较运算符
/// </summary>
/// <returns></returns>
private ASTNode Term()
{
ASTNode left = Factor();
while (_currentToken.Type == TokenType.Operator &&
(_currentToken.Value == "<" || _currentToken.Value == ">" ||
_currentToken.Value == "<=" || _currentToken.Value == ">=" ||
_currentToken.Value == "==" || _currentToken.Value == "!="))
{
string op = _currentToken.Value.ToString();
_currentToken = _lexer.NextToken();
ASTNode right = Factor();
left = new BinaryOperationNode(left, op, right).SetTokenInfo(_currentToken);
}
return left;
}*/
/// <summary>
/// 顶层布尔表达式
/// </summary>