/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
private Stmnt parseDeclarators(SymbolTable tbl, Declarator d) throws CompileError { Stmnt decl = null; for (;;) { decl = (Stmnt)ASTList.concat(decl, new Stmnt(DECL, parseDeclarator(tbl, d))); int t = lex.get(); if (t == ';') return decl; else if (t != ',') throw new CompileError("; is missing", lex); } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseDeclarators(SymbolTable tbl, Declarator d) throws CompileError { Stmnt decl = null; for (;;) { decl = (Stmnt)ASTList.concat(decl, new Stmnt(DECL, parseDeclarator(tbl, d))); int t = lex.get(); if (t == ';') return decl; else if (t != ',') throw new CompileError("; is missing", lex); } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseBlock(SymbolTable tbl) throws CompileError { if (lex.get() != '{') throw new SyntaxError(lex); Stmnt body = null; SymbolTable tbl2 = new SymbolTable(tbl); while (lex.lookAhead() != '}') { Stmnt s = parseStatement(tbl2); if (s != null) body = (Stmnt)ASTList.concat(body, new Stmnt(BLOCK, s)); } lex.get(); // '}' if (body == null) return new Stmnt(BLOCK); // empty block else return body; }
private Stmnt parseSwitchBlock(SymbolTable tbl) throws CompileError { if (lex.get() != '{') throw new SyntaxError(lex); SymbolTable tbl2 = new SymbolTable(tbl); Stmnt s = parseStmntOrCase(tbl2); if (s == null) throw new CompileError("empty switch block", lex); int op = s.getOperator(); if (op != CASE && op != DEFAULT) throw new CompileError("no case or default in a switch block", lex); Stmnt body = new Stmnt(BLOCK, s); while (lex.lookAhead() != '}') { Stmnt s2 = parseStmntOrCase(tbl2); if (s2 != null) { int op2 = s2.getOperator(); if (op2 == CASE || op2 == DEFAULT) { body = (Stmnt)ASTList.concat(body, new Stmnt(BLOCK, s2)); s = s2; } else s = (Stmnt)ASTList.concat(s, new Stmnt(BLOCK, s2)); } } lex.get(); // '}' return body; }
private Stmnt parseBlock(SymbolTable tbl) throws CompileError { if (lex.get() != '{') throw new SyntaxError(lex); Stmnt body = null; SymbolTable tbl2 = new SymbolTable(tbl); while (lex.lookAhead() != '}') { Stmnt s = parseStatement(tbl2); if (s != null) body = (Stmnt)ASTList.concat(body, new Stmnt(BLOCK, s)); } lex.get(); // '}' if (body == null) return new Stmnt(BLOCK); // empty block return body; }
private Stmnt parseSwitchBlock(SymbolTable tbl) throws CompileError { if (lex.get() != '{') throw new SyntaxError(lex); SymbolTable tbl2 = new SymbolTable(tbl); Stmnt s = parseStmntOrCase(tbl2); if (s == null) throw new CompileError("empty switch block", lex); int op = s.getOperator(); if (op != CASE && op != DEFAULT) throw new CompileError("no case or default in a switch block", lex); Stmnt body = new Stmnt(BLOCK, s); while (lex.lookAhead() != '}') { Stmnt s2 = parseStmntOrCase(tbl2); if (s2 != null) { int op2 = s2.getOperator(); if (op2 == CASE || op2 == DEFAULT) { body = (Stmnt)ASTList.concat(body, new Stmnt(BLOCK, s2)); s = s2; } else s = (Stmnt)ASTList.concat(s, new Stmnt(BLOCK, s2)); } } lex.get(); // '}' return body; }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
/** * Appends an object to a list. */ public static ASTList append(ASTList a, ASTree b) { return concat(a, new ASTList(b)); }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }
private Stmnt parseExprList(SymbolTable tbl) throws CompileError { Stmnt expr = null; for (;;) { Stmnt e = new Stmnt(EXPR, parseExpression(tbl)); expr = (Stmnt)ASTList.concat(expr, new Stmnt(BLOCK, e)); if (lex.lookAhead() == ',') lex.get(); else return expr; } }