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Evaluating Expressions 7

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nazrin 2025-05-31 17:44:11 +00:00
parent d937226553
commit f4338ba51f
6 changed files with 182 additions and 63 deletions
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12
src/jlox/scanner.d
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@ -5,7 +5,7 @@ import std.conv;
import jlox.token;
import jlox.tokentype;
import jlox.main : error, report;
import jlox.main;
private bool isAlpha_(dchar c) => c.isAlpha || c == '_';
private bool isAlphaNum_(dchar c) => c.isAlphaNum || c == '_';
@ -30,7 +30,7 @@ class Scanner {
current++;
return true;
}
private void addToken(TokenType type, TTokenValue literal = TTokenValue.nil(0)){
private void addToken(TokenType type, TValue literal = TValue.nil(0)){
string text = source[start .. current];
tokens ~= new Token(type, text, literal, line);
}
@ -49,12 +49,12 @@ class Scanner {
advance();
}
if(isAtEnd){
error(line, "Unterminated string.");
Lox.error(line, "Unterminated string.");
return;
}
advance();
string value = source[start + 1 .. current -1];
addToken(TokenType.STRING, TTokenValue.str(value));
addToken(TokenType.STRING, TValue.str(value));
}
private void number(){
while(peek().isDigit)
@ -64,7 +64,7 @@ class Scanner {
while(peek().isDigit)
advance();
}
addToken(TokenType.NUMBER, TTokenValue.dbl(source[start .. current].to!double));
addToken(TokenType.NUMBER, TValue.dbl(source[start .. current].to!double));
}
private TokenType keywords(string word){
with(TokenType) switch(word){
@ -142,7 +142,7 @@ class Scanner {
identifier();
break;
default:
error(line, "Unexpected character");
Lox.error(line, "Unexpected character");
}
}
}