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Author SHA1 Message Date
tijani
40de215f70 Built-in functions: 
len() added

git-svn-id: https://svn.tlawal.org/svn/monkey@59 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-11-11 20:30:15 +00:00
tijani
b028741d75 - String Concatenation is now possible. 
- Added test to ensure only '+' will work for concatenating strings
- Likkle reformatting.


git-svn-id: https://svn.tlawal.org/svn/monkey@58 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-11-03 15:01:40 +00:00
tijani
2c2c936b29 String Implementation is done. Still has TODO that would make for good excercise. 
git-svn-id: https://svn.tlawal.org/svn/monkey@57 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-11-03 14:23:07 +00:00
tijani
2791a27f1f Built-in datatypes: Added String 
The parser now understands what a strings is and can take a string literal and curn out an Stringliteral AST
nodes.



git-svn-id: https://svn.tlawal.org/svn/monkey@56 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-11-03 11:11:42 +00:00
tijani
05d2c32b38 Formatting. 
Monk also supports first-class functions


git-svn-id: https://svn.tlawal.org/svn/monkey@55 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-26 19:01:31 +00:00
tijani
cdf36e8211 Monk now fully supports Functions, Function calls and closures. 
git-svn-id: https://svn.tlawal.org/svn/monkey@54 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-26 19:00:32 +00:00
tijani
6f00316b43 Typo 
git-svn-id: https://svn.tlawal.org/svn/monkey@53 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-19 07:49:24 +00:00
tijani
7fcea2117f Implemented environments which is just a hash map to keep track of values in the language. 
git-svn-id: https://svn.tlawal.org/svn/monkey@52 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-19 07:18:37 +00:00
tijani
d38f4dec8a Tests 
- Ensure value producing expression in a let statement and also identifiers bound to a 
variable name.
- Tests to ensure valid errors with unbound identifiers

git-svn-id: https://svn.tlawal.org/svn/monkey@51 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-18 14:32:13 +00:00
tijani
44612f0756 Error handling 
git-svn-id: https://svn.tlawal.org/svn/monkey@50 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-11 06:55:07 +00:00
tijani
5456f60038 Infix Expression, Prefix Expression, Return Statement. 
git-svn-id: https://svn.tlawal.org/svn/monkey@49 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-11 05:04:44 +00:00
tijani
ec01fd1a31 Turn off parser tracing 
git-svn-id: https://svn.tlawal.org/svn/monkey@48 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-08 11:35:06 +00:00
tijani
a170eb4450 Infix evaluation operation now supported. 
git-svn-id: https://svn.tlawal.org/svn/monkey@47 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-08 11:01:32 +00:00
tijani
4b67c7d6e1 Implement the "!" evaluation operator 
git-svn-id: https://svn.tlawal.org/svn/monkey@46 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-08 10:14:14 +00:00
tijani
886a16e706 Spelling corrections 
Interpreter can now evaluate Booleans

git-svn-id: https://svn.tlawal.org/svn/monkey@45 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-07 14:58:35 +00:00
tijani
1b97196361 Evaluation - Integer evaluation now works, got basically a REPL going on. 
git-svn-id: https://svn.tlawal.org/svn/monkey@44 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-07 14:44:11 +00:00
tijani
7a319dc03b not needed, at least for now 
git-svn-id: https://svn.tlawal.org/svn/monkey@43 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-07 14:43:06 +00:00
tijani
97059abeee Added tracing. 
git-svn-id: https://svn.tlawal.org/svn/monkey@42 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-01 16:27:33 +00:00
tijani
3b013cd917 Formatting changes. 
REPL can now use the parser.

NOTE: REPL currently outputs the parsed tokens because tracing is still turned on.

git-svn-id: https://svn.tlawal.org/svn/monkey@41 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-01 16:13:40 +00:00
tijani
e5d2851c2e Remove TODO's 
git-svn-id: https://svn.tlawal.org/svn/monkey@40 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-01 05:26:02 +00:00
tijani
7e34164019 CallExpression ast, parser and tests completed. 
git-svn-id: https://svn.tlawal.org/svn/monkey@39 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-08-01 04:58:28 +00:00
tijani
c421b040d5 Can now parse FunctionLiteral and its parameters. Tests are also included. 
git-svn-id: https://svn.tlawal.org/svn/monkey@38 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-31 23:31:43 +00:00
tijani
c1d53c5101 git-svn-id: https://svn.tlawal.org/svn/monkey@37 f6afcba9-9ef1-4bdd-9b72-7484f5705bac 2022-07-31 21:57:20 +00:00
tijani
1ac48b0cad Test for IfExpressions, and IfElseExpression 
git-svn-id: https://svn.tlawal.org/svn/monkey@36 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-31 21:55:09 +00:00
tijani
5d1197160d Improved code readability. 
Added IfExpressions, BlockStatements, and FunctionLiterals

git-svn-id: https://svn.tlawal.org/svn/monkey@35 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-31 21:44:35 +00:00
tijani
a4b75cf9c2 Changes: 
- Parsing grouped expressions is now possible
- formatting

git-svn-id: https://svn.tlawal.org/svn/monkey@34 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-14 12:23:22 +00:00
tijani
388700441e Changes: 
- Added helper functions to test BooleanLiterals
- Formatting

git-svn-id: https://svn.tlawal.org/svn/monkey@33 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-14 12:12:56 +00:00
tijani
628a604701 Changes: 
- Boolean expression can now be parsed. 
- Formatting

git-svn-id: https://svn.tlawal.org/svn/monkey@32 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-14 07:26:34 +00:00
tijani
6597024fff Helper functions to make testing the AST easier and cleaner. 
git-svn-id: https://svn.tlawal.org/svn/monkey@31 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-07-14 06:54:26 +00:00
tijani
73eeb2001e git-svn-id: https://svn.tlawal.org/svn/monkey@30 f6afcba9-9ef1-4bdd-9b72-7484f5705bac 2022-07-14 06:24:50 +00:00
tijani
d1863830af Test helpers should be at the bottom. 
git-svn-id: https://svn.tlawal.org/svn/monkey@29 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-06-12 14:50:08 +00:00
tijani
2fa35abbc3 add readme 
git-svn-id: https://svn.tlawal.org/svn/monkey@28 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-06-01 14:27:07 +00:00
tijani
dd030ebd4b This allows tracing information to be displayed. STRICTLY FOR TESTING ONLY, SHOULD BE TURNED OFF IN THE 
ACTUAL INTERPRETER.


git-svn-id: https://svn.tlawal.org/svn/monkey@27 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-06-01 14:20:16 +00:00
tijani
982efec3d0 - Formatting. 
- Tracing information now displayed to better visualize how the program works.


git-svn-id: https://svn.tlawal.org/svn/monkey@26 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-31 17:38:50 +00:00
tijani
e5d95dc7b6 - Infix operator parsing is now possible. 
git-svn-id: https://svn.tlawal.org/svn/monkey@25 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-31 15:01:43 +00:00
tijani
2253d6b02c Parsing prefix expressions, tests passes 
git-svn-id: https://svn.tlawal.org/svn/monkey@24 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-31 11:32:43 +00:00
tijani
45f6929c14 Started implementing Pratt Parsing, tests now pass that can generate on Infix and Integer expressions. 
git-svn-id: https://svn.tlawal.org/svn/monkey@23 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-30 17:40:03 +00:00
tijani
e456189c86 ExpressionStatement in the AST to represent the typse of expressions that is supported in monkey. 
Hand written test in the AST to test the String() function for accuracy



git-svn-id: https://svn.tlawal.org/svn/monkey@22 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-30 05:51:27 +00:00
tijani
fdf6a8a552 - Some minor formatting. 
- Parser can now handle return statements.

git-svn-id: https://svn.tlawal.org/svn/monkey@21 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-27 15:07:19 +00:00
tijani
58f6bab88f Clarity. 
git-svn-id: https://svn.tlawal.org/svn/monkey@20 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-26 19:25:31 +00:00
tijani
145d61ba57 - The parser can now check for errors. 
- The test now handles checking for errors.

git-svn-id: https://svn.tlawal.org/svn/monkey@19 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-26 19:23:01 +00:00
tijani
4a3edec5e6 git-svn-id: https://svn.tlawal.org/svn/monkey@18 f6afcba9-9ef1-4bdd-9b72-7484f5705bac 2022-05-26 19:20:51 +00:00
tijani
2e18493a4a Test now passes, wonder what I did wrong. 
git-svn-id: https://svn.tlawal.org/svn/monkey@17 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-26 17:19:15 +00:00
tijani
b8e8fc8b6e Stubborn bug, could not figure out what causing it. Will just re-write the entire thing. 
```panic: runtime error: invalid memory address or nil pointer dereference [recovered] 
        panic: runtime error: invalid memory address or nil pointer dereference     
[signal 0xc0000005 code=0x0 addr=0x10 pc=0xbcf660]                                  
                                                                                    
goroutine 6 [running]:                                                              
testing.tRunner.func1.2({0xbe4c60, 0xce2c10})                                       
        C:/Program Files/Go/src/testing/testing.go:1389 +0x24e                      
testing.tRunner.func1()                                                             
        C:/Program Files/Go/src/testing/testing.go:1392 +0x39f                      
panic({0xbe4c60, 0xce2c10})                                                         
        C:/Program Files/Go/src/runtime/panic.go:838 +0x207                         
monkey/ast.(*LetStatement).TokenLiteral(0xc000022940?)                              
        D:/monkey/ast/ast.go:37                                                     
monkey/parser.testLetStatement(0xc000132000, {0xc32638, 0x0}, {0xc0106a, 0x1})      
        D:/monkey/parser/parser_test.go:43 +0x49                                    
monkey/parser.TestLetStatements(0xc000132000)                                       
        D:/monkey/parser/parser_test.go:36 +0x1ba                                   
testing.tRunner(0xc000132000, 0xc0d940)                                             
        C:/Program Files/Go/src/testing/testing.go:1439 +0x102                      
created by testing.(*T).Run                                                         
        C:/Program Files/Go/src/testing/testing.go:1486 +0x35f                      
FAIL    monkey/parser   0.180s                                                      
FAIL
```

git-svn-id: https://svn.tlawal.org/svn/monkey@16 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-26 16:35:08 +00:00
tijani
4f90d0cbd1 Formatting 
git-svn-id: https://svn.tlawal.org/svn/monkey@15 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-26 16:33:09 +00:00
tijani
c7dbccbe71 Basic structure of the parser, I now understand what is going on. I think ¯\_(?)_/¯ 
git-svn-id: https://svn.tlawal.org/svn/monkey@14 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-24 17:05:02 +00:00
tijani
b78944e3d7 Typo 
git-svn-id: https://svn.tlawal.org/svn/monkey@13 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-23 17:35:55 +00:00
tijani
4691f6c3e5 Basic AST to represent expressions, statement, identifiers 
I now understand how it works.

git-svn-id: https://svn.tlawal.org/svn/monkey@12 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-23 14:26:34 +00:00
tijani
d37bdfa644 Don't understand how it works. 
git-svn-id: https://svn.tlawal.org/svn/monkey@11 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-23 14:25:45 +00:00
tijani
f8f7ec04c7 Basic AST to represent expressions, statement, identifiers 
I now understand how it works.

git-svn-id: https://svn.tlawal.org/svn/monkey@10 f6afcba9-9ef1-4bdd-9b72-7484f5705bac
 2022-05-23 14:24:35 +00:00