2025-10-19 12:24:15 +09:00
										 
									 
								 
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								continue 99 ##ERROR: syntax error - excessive argument to 'continue' around '99'
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								---
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								break "hello" 20 ##ERROR: syntax error - excessive argument to 'break' around 'hello'
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								---
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											2025-10-17 23:26:15 +09:00
										 
									 
								 
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								return ##ERROR: syntax error - no value specified for 'return'
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								---
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											2025-10-15 23:28:14 +09:00
										 
									 
								 
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								return 1 2 ##ERROR: syntax error - excessive argument to 'return' around '2'
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								---
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								## TODO: improve the return to show the actual parenthensis like around '('
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								return 1 (+ 1 2) ##ERROR: syntax error - excessive argument to 'return' around ''
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								---
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											2024-01-14 09:48:57 +09:00
										 
									 
								 
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								## the expression begins with a dictionary expression. 
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								## it is not a function name and can'be be invoked.
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								#{100:1, 200: 3}; ##ERROR: syntax error - invalid callable
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											2024-04-10 19:23:15 +09:00
										 
									 
								 
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								---
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											2024-04-15 02:23:55 +09:00
										 
									 
								 
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								## you must enclose the binary expression with parentheses
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								## i := (i + 20)
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								i:=0;
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							 | 
							
							
								while(i < 20) {
							 | 
						
					
						
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							 | 
							
							
									printf "hello world 안녕하신가\n"
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											2024-09-18 22:21:11 +09:00
										 
									 
								 
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									i := i + 20 ##ERROR: syntax error - prohibited binary selector '+'
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											2024-04-15 02:23:55 +09:00
										 
									 
								 
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								}
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								---
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											2024-07-13 13:33:20 +09:00
										 
									 
								 
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								if  ##ERROR: syntax error - no conditional expression after 'if'
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											2024-04-13 00:48:23 +09:00
										 
									 
								 
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								---
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								if (< 2 3) elif  ##ERROR: syntax error - block expression expected as 'if' body
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								---
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								if (< 2 3) {} elif true else  ##ERROR: syntax error - block expression expected as 'elif' body
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								---
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											2024-10-02 00:41:54 +09:00
										 
									 
								 
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								if else ##ERROR: syntax error - 'else' prohibited in this context
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											2024-04-13 00:48:23 +09:00
										 
									 
								 
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								---
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											2024-10-02 00:41:54 +09:00
										 
									 
								 
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								if elif else ##ERROR: syntax error - 'elif' prohibited in this context
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											2024-04-13 00:48:23 +09:00
										 
									 
								 
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								---
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								if (< 20 30) ##ERROR: syntax error - block expression expected as 'if' body
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								---
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								if (< 20 30) {
							 | 
						
					
						
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									printf "ok\n"
							 | 
						
					
						
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								} { ##ERROR: syntax error - redundant expression prohibited after 'if' body
							 | 
						
					
						
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							 | 
							
								
							 | 
							
							
									printf "ok2\n"
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							 | 
							
							
								}
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								---
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								if (< 20 30) else { ##ERROR: syntax error - block expression expected as 'if' body
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							 | 
							
							
									printf "ok\n"
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								}
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											2025-10-17 23:26:15 +09:00
										 
									 
								 
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							 | 
							
								
							 | 
							
							
								---
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								elif (< 20 30) { } ##ERROR: syntax error - elif without if
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								---
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								else (< 20 30) { } ##ERROR: syntax error - else without if
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											2024-04-13 00:48:23 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
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								---
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								catch (e) {} ##ERROR: syntax error - catch without try
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								---
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								try {} catch ##ERROR: syntax error - no exception variable for 'catch'
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								---
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											2024-04-10 19:23:15 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								try {
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									throw "excetion message"
							 | 
						
					
						
							
								
									
										
										
										
											2024-10-03 21:41:59 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								} catch (e a) { ##ERROR: syntax error - improper exception variable for 'catch'
							 | 
						
					
						
							
								
									
										
										
										
											2024-04-10 19:23:15 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
									printf "EXCEPTION - %s\n" e
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								}
							 | 
						
					
						
							
								
									
										
										
										
											2024-04-10 19:48:49 +09:00
										 
									 
								 
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								---
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											2024-04-13 00:48:23 +09:00
										 
									 
								 
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							 | 
							
								
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								try { throw "1111"; } catch (e) ##ERROR: syntax error - block expression expected as 'catch' body
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								---
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								try { throw "1111"; } catch (e) {
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									printf "EXCEPTION - %s\n" e
							 | 
						
					
						
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								} 20 ##ERROR: syntax error - redundant expression prohibited after
							 | 
						
					
						
							
								
									
										
										
										
											2024-04-13 17:17:15 +09:00
										 
									 
								 
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								---
							 | 
						
					
						
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								{
							 | 
						
					
						
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							 | 
							
							
									| a |
							 | 
						
					
						
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							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									a := 30
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									fun a:get_999() { ##ERROR: exception not handled - "not class"
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
										return  999;
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									}
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								}
							 | 
						
					
						
							| 
								
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							 | 
							
								
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							 | 
						
					
						
							| 
								
							 | 
							
								
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							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								---
							 | 
						
					
						
							| 
								
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							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								fun a:get_999() { ##ERROR: exception not handled - "a accessed without initialization"
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									return  999;
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								}
							 | 
						
					
						
							
								
									
										
										
										
											2024-09-26 19:50:57 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
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							 | 
						
					
						
							| 
								
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								---
							 | 
						
					
						
							| 
								
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							 | 
							
								
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							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								k := (core.basicAt "abcdefg" 1)
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								core.basicAtPut "xbcdefghiklmnl" 4 k ##ERROR: exception not handled - "receiver immutable - \"xbcdefghiklmnl\""
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								---
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								k := (core.basicAt #abcdefg 1)
							 | 
						
					
						
							
								
									
										
										
										
											2024-10-06 00:18:24 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								core.basicAtPut #xbcdefghiklmnl 4 k ##ERROR: exception not handled - "receiver immutable - xbcdefghiklmnl"
							 | 
						
					
						
							
								
									
										
										
										
											2025-09-21 17:13:47 +09:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
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							 | 
						
					
						
							| 
								
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								---
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								## the compiler/runtime needs to improve on this although this is an error for now.
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								fun + (a b) {}
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								printf "%O\n" #{+: 20} ##ERROR: no builtin hash implemented for #<BLOCK>
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								---
							 | 
						
					
						
							| 
								
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							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								class X {
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
									fun + () {} ##ERROR: syntax error - only one argument expected for '+'
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								}
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								---
							 | 
						
					
						
							| 
								
							 | 
							
								
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								## the binop method defined for a class must have one argument
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								class X {
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									fun + (t) {}
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									fun f1 (t1 t2) {}
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								}
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								fun X:- (a b) {} ##ERROR: syntax error - only one argument expected for 'X:-'
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								---
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								class X {
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								     fun[#ci] +(a b c) { printf "jjj\n" } ## the one argument rule applies to binary instance methods only.
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								     fun +(c d) { printf "jjj\n" } ##ERROR: syntax error - only one argument expected for '+'
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								}
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