mips without optimize

This commit is contained in:
colden
2025-12-12 20:14:00 +08:00
parent 84827838e2
commit c94bebf37b
130 changed files with 5462 additions and 4182 deletions

118
frontend/ast/exp/LVal.java Normal file → Executable file
View File

@@ -1,59 +1,59 @@
package frontend.ast.exp;
import frontend.ast.Node;
import frontend.ast.SyntaxType;
import frontend.ast.token.TokenNode;
import frontend.lexer.TokenStream;
import frontend.lexer.TokenType;
import midend.symbol.SymbolManager;
import midend.symbol.Symbol;
import midend.symbol.ArraySymbol;
import error.Errors;
import error.Error;
import error.ErrorType;
public class LVal extends Node {
public LVal(TokenStream ts) {
super(SyntaxType.LVAL_EXP, ts);
}
public void parse(Errors errors) {
addChild(new TokenNode(this.ts)); // idenfr
if (getCurrToken().getType() == TokenType.LBRACK) {
addChild(new TokenNode(this.ts)); // lbrack
Exp exp = new Exp(this.ts);
exp.parse(errors);
addChild(exp);
if (getCurrToken().getType() == TokenType.RBRACK) {
addChild(new TokenNode(this.ts)); // rbrack
} else {
errors.addError(new Error(this.ts.peek(-1).getLine(), ErrorType.k));
}
}
}
public int getType() {
if (getChildren().size() == 1) {
TokenNode idenfr = (TokenNode) getChild(0);
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
if (symbol instanceof ArraySymbol) {
return 1;
}
return 0;
} else {
return 0;
}
}
public int getValue() {
TokenNode idenfr = (TokenNode) getChild(0); //idenfr一定是个常量可在符号表找到且有值
if (getChildren().size() == 1) {
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
return symbol.getValue(0);
} else {
int index = ((Exp) getChild(2)).getValue();
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
return symbol.getValue(index);
}
}
}
package frontend.ast.exp;
import frontend.ast.Node;
import frontend.ast.SyntaxType;
import frontend.ast.token.TokenNode;
import frontend.lexer.TokenStream;
import frontend.lexer.TokenType;
import midend.symbol.SymbolManager;
import midend.symbol.Symbol;
import midend.symbol.ArraySymbol;
import error.Errors;
import error.Error;
import error.ErrorType;
public class LVal extends Node {
public LVal(TokenStream ts) {
super(SyntaxType.LVAL_EXP, ts);
}
public void parse(Errors errors) {
addChild(new TokenNode(this.ts)); // idenfr
if (getCurrToken().getType() == TokenType.LBRACK) {
addChild(new TokenNode(this.ts)); // lbrack
Exp exp = new Exp(this.ts);
exp.parse(errors);
addChild(exp);
if (getCurrToken().getType() == TokenType.RBRACK) {
addChild(new TokenNode(this.ts)); // rbrack
} else {
errors.addError(new Error(this.ts.peek(-1).getLine(), ErrorType.k));
}
}
}
public int getType() {
if (getChildren().size() == 1) {
TokenNode idenfr = (TokenNode) getChild(0);
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
if (symbol instanceof ArraySymbol) {
return 1;
}
return 0;
} else {
return 0;
}
}
public int getValue() {
TokenNode idenfr = (TokenNode) getChild(0); //idenfr一定是个常量可在符号表找到且有值
if (getChildren().size() == 1) {
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
return symbol.getValue(0);
} else {
int index = ((Exp) getChild(2)).getValue();
Symbol symbol = SymbolManager.getSymbol(idenfr.getName());
return symbol.getValue(index);
}
}
}