feat(camp_4): release the beast

.gitignore

@@ -1,12 +1,20 @@
 *.txt
-
+node_modules/
+.build/
+cache/
+.idea/
+artifacts/
+starknet-artifacts/
+.pytest_cache/
+build/
 tmp/
-**/*_compiled.json
-**/*_abi.json
+package-lock.json
+**/*compiled.json
+**/*abi.json
 **/*.bin
 
 **/*.txt
 
 **/*.sum
 
-*/**/__pycache__
+*/**/__pycache__

camp_4/buidl/.eslintrc.js

@@ -0,0 +1,18 @@
+module.exports = {
+    env: {
+      browser: false,
+      es2021: true,
+      mocha: true,
+      node: true,
+    },
+    plugins: ["@typescript-eslint"],
+    extends: ["standard", "plugin:prettier/recommended", "plugin:node/recommended"],
+    parser: "@typescript-eslint/parser",
+    parserOptions: {
+      ecmaVersion: 12,
+    },
+    rules: {
+      "node/no-unsupported-features/es-syntax": ["error", { ignores: ["modules"] }],
+    },
+  };
+

camp_4/buidl/.prettierc

@@ -0,0 +1,21 @@
+{
+  "arrowParens": "avoid",
+  "bracketSpacing": true,
+  "printWidth": 120,
+  "singleQuote": false,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "overrides": [
+    {
+      "files": "*.sol",
+      "options": {
+        "printWidth": 80,
+        "tabWidth": 4,
+        "useTabs": false,
+        "singleQuote": false,
+        "bracketSpacing": false,
+        "explicitTypes": "always"
+      }
+    }
+  ]
+}

camp_4/buidl/contracts/ERC20.cairo

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+# SPDX-License-Identifier: MIT
+# OpenZeppelin Cairo Contracts v0.1.0 (token/erc20/ERC20.cairo)
+
+%lang starknet
+
+from starkware.cairo.common.cairo_builtins import HashBuiltin
+from starkware.cairo.common.uint256 import Uint256
+
+from openzeppelin.token.erc20.library import (
+    ERC20_name,
+    ERC20_symbol,
+    ERC20_totalSupply,
+    ERC20_decimals,
+    ERC20_balanceOf,
+    ERC20_allowance,
+
+    ERC20_initializer,
+    ERC20_approve,
+    ERC20_increaseAllowance,
+    ERC20_decreaseAllowance,
+    ERC20_transfer,
+    ERC20_transferFrom,
+    ERC20_mint
+)
+
+from openzeppelin.utils.constants import TRUE
+
+@constructor
+func constructor{
+        syscall_ptr: felt*, 
+        pedersen_ptr: HashBuiltin*,
+        range_check_ptr
+    }(
+        name: felt,
+        symbol: felt,
+        decimals: felt,
+        initial_supply: Uint256,
+        recipient: felt
+    ):
+    ERC20_initializer(name, symbol, decimals)
+    ERC20_mint(recipient, initial_supply)
+    return ()
+end
+
+#
+# Getters
+#
+
+@view
+func name{
+        syscall_ptr : felt*,
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }() -> (name: felt):
+    let (name) = ERC20_name()
+    return (name)
+end
+
+@view
+func symbol{
+        syscall_ptr : felt*,
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }() -> (symbol: felt):
+    let (symbol) = ERC20_symbol()
+    return (symbol)
+end
+
+@view
+func totalSupply{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }() -> (totalSupply: Uint256):
+    let (totalSupply: Uint256) = ERC20_totalSupply()
+    return (totalSupply)
+end
+
+@view
+func decimals{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }() -> (decimals: felt):
+    let (decimals) = ERC20_decimals()
+    return (decimals)
+end
+
+@view
+func balanceOf{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(account: felt) -> (balance: Uint256):
+    let (balance: Uint256) = ERC20_balanceOf(account)
+    return (balance)
+end
+
+@view
+func allowance{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(owner: felt, spender: felt) -> (remaining: Uint256):
+    let (remaining: Uint256) = ERC20_allowance(owner, spender)
+    return (remaining)
+end
+
+#
+# Externals
+#
+
+@external
+func transfer{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(recipient: felt, amount: Uint256) -> (success: felt):
+    ERC20_transfer(recipient, amount)
+    return (TRUE)
+end
+
+@external
+func transferFrom{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(
+        sender: felt, 
+        recipient: felt, 
+        amount: Uint256
+    ) -> (success: felt):
+    ERC20_transferFrom(sender, recipient, amount)
+    return (TRUE)
+end
+
+@external
+func approve{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(spender: felt, amount: Uint256) -> (success: felt):
+    ERC20_approve(spender, amount)
+    return (TRUE)
+end
+
+@external
+func increaseAllowance{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(spender: felt, added_value: Uint256) -> (success: felt):
+    ERC20_increaseAllowance(spender, added_value)
+    return (TRUE)
+end
+
+@external
+func decreaseAllowance{
+        syscall_ptr : felt*, 
+        pedersen_ptr : HashBuiltin*,
+        range_check_ptr
+    }(spender: felt, subtracted_value: Uint256) -> (success: felt):
+    ERC20_decreaseAllowance(spender, subtracted_value)
+    return (TRUE)
+end