From 3183fabeb088d693a8b003e64d2ab27dcb6ec14f Mon Sep 17 00:00:00 2001
From: ValentinZhao <2264709714@qq.com>
Date: Sat, 7 Apr 2018 16:49:04 +0800
Subject: [PATCH 1/2] optimize operators

---
 filbert.js        |   43 +-
 package-lock.json | 4548 +++++++++++++++++++++++++++++++++++++++++++++
 package.json      |   66 +-
 3 files changed, 4626 insertions(+), 31 deletions(-)
 create mode 100644 package-lock.json

diff --git a/filbert.js b/filbert.js
index a026dfdeb..e5e312570 100644
--- a/filbert.js
+++ b/filbert.js
@@ -653,7 +653,14 @@
 
   function readToken_mult_modulo(code) { // '*%'
     var next = input.charCodeAt(tokPos + 1);
-    if (next === 42 && next === code) return finishOp(_exponentiation, 2);
+    // handle **=
+    if (next === 42 && next === code) {
+      var ch_after_mult = input.charCodeAt(tokPos + 2);
+      if (ch_after_mult === 61) {
+        return finishOp(_assign, 3);
+      }
+      return finishOp(_exponentiation, 2);
+    }
     if (next === 61) return finishOp(_assign, 2);
     return finishOp(_multiplyModulo, 1);
   }
@@ -1977,9 +1984,39 @@
       node.right = parseMaybeTuple(noIn);
       checkLVal(left);
 
-      if (node.operator === '+=' || node.operator === '*=') {
+       // optimize operators
+      if (node.operator === '+=' ||
+       node.operator === '*=' ||
+       node.operator === '-=' ||
+       node.operator === '%=' ||
+       node.operator === '/=' ||
+       node.operator === '**=') {
         var right = nc.createNodeSpan(node.right, node.right, "CallExpression");
-        right.callee = nc.createNodeOpsCallee(right, node.operator === '+=' ? "add" : "multiply");
+        var fn_name = '';
+        switch (node.operator) {
+          case '+=':
+            fn_name = 'add';
+            break;
+          case '*=':
+            fn_name = 'multiply';
+            break;
+          case '-=':
+            fn_name = '-';
+            break;
+          case '/=':
+            fn_name = '/';
+            break;
+          case '%=':
+            fn_name = '%';
+            break;
+          case '**=':
+            fn_name = 'pow';
+            break;
+          default:
+            fn_name = 'add';
+            break;
+        }
+        right.callee = nc.createNodeOpsCallee(right, fn_name);
         right.arguments = [left, node.right];
         node.right = right;
         node.operator = '=';
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 000000000..43873d577
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,4548 @@
+{
+  "name": "filbert",
+  "version": "0.1.20",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
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+      "version": "1.1.1",
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+      "dev": true
+    },
+    "ajv": {
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "dev": true,
+      "requires": {
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+        "fast-deep-equal": "1.1.0",
+        "fast-json-stable-stringify": "2.0.0",
+        "json-schema-traverse": "0.3.1"
+      }
+    },
+    "amdefine": {
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+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
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+          "dev": true
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+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/zlib-browserify/-/zlib-browserify-0.0.1.tgz",
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+      "dev": true
+    }
+  }
+}
diff --git a/package.json b/package.json
index e5d95ff6a..f6ddbf4b6 100644
--- a/package.json
+++ b/package.json
@@ -1,28 +1,38 @@
-{
-  "name": "filbert",
-  "description": "Python parser, Mozilla AST output",
-  "keywords": [
-    "python",
-    "parser",
-    "mozilla",
-    "ast"
-  ],
-  "main": "filbert.js",
-  "version": "0.1.20",
-  "engines": {"node": ">=0.4.0"},
-  "author": {"name": "Matt Lott",
-                      "email": "mattlott@gmail.com",
-                      "url": "http://www.mattlott.com"},
-  "repository": {"type": "git",
-                  "url": "https://github.com/differentmatt/filbert.git"},
-  "licenses": [{"type": "MIT",
-                  "url": "https://github.com/differentmatt/filbert/blob/master/LICENSE"}],
-  "devDependencies": {
-    "grunt": "^0.4.4",
-    "grunt-contrib-jshint": "~0.6.3",
-    "grunt-contrib-nodeunit": "~0.2.0",
-    "grunt-contrib-uglify": "~0.2.2",
-    "grunt-jasmine-node": "^0.2.1",
-    "escodegen": "^1.3.2"
-  }
-}
+{
+  "name": "filbert",
+  "description": "Python parser, Mozilla AST output",
+  "keywords": [
+    "python",
+    "parser",
+    "mozilla",
+    "ast"
+  ],
+  "main": "filbert.js",
+  "version": "0.1.20",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "author": {
+    "name": "Matt Lott",
+    "email": "mattlott@gmail.com",
+    "url": "http://www.mattlott.com"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/differentmatt/filbert.git"
+  },
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://github.com/differentmatt/filbert/blob/master/LICENSE"
+    }
+  ],
+  "devDependencies": {
+    "grunt": "^0.4.4",
+    "grunt-contrib-jshint": "~0.6.3",
+    "grunt-contrib-nodeunit": "~0.2.0",
+    "grunt-contrib-uglify": "~0.2.2",
+    "grunt-jasmine-node": "^0.2.1",
+    "escodegen": "^1.3.2"
+  }
+}

From 223e2a7fbd7dfd3002ba0dcbbb0b9abacd7e3d18 Mon Sep 17 00:00:00 2001
From: ValentinZhao <2264709714@qq.com>
Date: Sat, 7 Apr 2018 16:49:04 +0800
Subject: [PATCH 2/2] optimize operators

optimize code structure
---
 filbert.js        |   43 +-
 package-lock.json | 4548 +++++++++++++++++++++++++++++++++++++++++++++
 package.json      |   66 +-
 3 files changed, 4626 insertions(+), 31 deletions(-)
 create mode 100644 package-lock.json

diff --git a/filbert.js b/filbert.js
index a026dfdeb..9c8df1ca7 100644
--- a/filbert.js
+++ b/filbert.js
@@ -653,7 +653,14 @@
 
   function readToken_mult_modulo(code) { // '*%'
     var next = input.charCodeAt(tokPos + 1);
-    if (next === 42 && next === code) return finishOp(_exponentiation, 2);
+    // handle **=
+    if (next === 42 && next === code) {
+      var ch_after_mult = input.charCodeAt(tokPos + 2);
+      if (ch_after_mult === 61) {
+        return finishOp(_assign, 3);
+      }
+      return finishOp(_exponentiation, 2);
+    }
     if (next === 61) return finishOp(_assign, 2);
     return finishOp(_multiplyModulo, 1);
   }
@@ -1977,9 +1984,39 @@
       node.right = parseMaybeTuple(noIn);
       checkLVal(left);
 
-      if (node.operator === '+=' || node.operator === '*=') {
+       // optimize operators
+      if (node.operator === '+=' ||
+          node.operator === '*=' ||
+          node.operator === '-=' ||
+          node.operator === '%=' ||
+          node.operator === '/=' ||
+          node.operator === '**=') {
         var right = nc.createNodeSpan(node.right, node.right, "CallExpression");
-        right.callee = nc.createNodeOpsCallee(right, node.operator === '+=' ? "add" : "multiply");
+        var fn_name = '';
+        switch (node.operator) {
+          case '+=':
+            fn_name = 'add';
+            break;
+          case '*=':
+            fn_name = 'multiply';
+            break;
+          case '-=':
+            fn_name = '-';
+            break;
+          case '/=':
+            fn_name = '/';
+            break;
+          case '%=':
+            fn_name = '%';
+            break;
+          case '**=':
+            fn_name = 'pow';
+            break;
+          default:
+            fn_name = 'add';
+            break;
+        }
+        right.callee = nc.createNodeOpsCallee(right, fn_name);
         right.arguments = [left, node.right];
         node.right = right;
         node.operator = '=';
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 000000000..43873d577
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,4548 @@
+{
+  "name": "filbert",
+  "version": "0.1.20",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "dev": true
+    },
+    "ajv": {
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "dev": true,
+      "requires": {
+        "co": "4.6.0",
+        "fast-deep-equal": "1.1.0",
+        "fast-json-stable-stringify": "2.0.0",
+        "json-schema-traverse": "0.3.1"
+      }
+    },
+    "amdefine": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/amdefine/-/amdefine-1.0.1.tgz",
+      "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
+      "dev": true
+    },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
+    "argparse": {
+      "version": "0.1.16",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-0.1.16.tgz",
+      "integrity": "sha1-z9AeD7uj1srtBJ+9dY1A9lGW9Xw=",
+      "dev": true,
+      "requires": {
+        "underscore": "1.7.0",
+        "underscore.string": "2.4.0"
+      },
+      "dependencies": {
+        "underscore.string": {
+          "version": "2.4.0",
+          "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-2.4.0.tgz",
+          "integrity": "sha1-jN2PusTi0uoefi6Al8QvRCKA+Fs=",
+          "dev": true
+        }
+      }
+    },
+    "asn1": {
+      "version": "0.2.3",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
+      "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
+      "dev": true
+    },
+    "assert-plus": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+      "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
+      "dev": true
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+      "resolved": "https://registry.npmjs.org/async/-/async-0.1.22.tgz",
+      "integrity": "sha1-D8GqoIig4+8Ovi2IMbqw3PiEUGE=",
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+      "version": "0.4.0",
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+      "dev": true
+    },
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+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.7.0.tgz",
+      "integrity": "sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=",
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+      "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=",
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diff --git a/package.json b/package.json
index e5d95ff6a..f6ddbf4b6 100644
--- a/package.json
+++ b/package.json
@@ -1,28 +1,38 @@
-{
-  "name": "filbert",
-  "description": "Python parser, Mozilla AST output",
-  "keywords": [
-    "python",
-    "parser",
-    "mozilla",
-    "ast"
-  ],
-  "main": "filbert.js",
-  "version": "0.1.20",
-  "engines": {"node": ">=0.4.0"},
-  "author": {"name": "Matt Lott",
-                      "email": "mattlott@gmail.com",
-                      "url": "http://www.mattlott.com"},
-  "repository": {"type": "git",
-                  "url": "https://github.com/differentmatt/filbert.git"},
-  "licenses": [{"type": "MIT",
-                  "url": "https://github.com/differentmatt/filbert/blob/master/LICENSE"}],
-  "devDependencies": {
-    "grunt": "^0.4.4",
-    "grunt-contrib-jshint": "~0.6.3",
-    "grunt-contrib-nodeunit": "~0.2.0",
-    "grunt-contrib-uglify": "~0.2.2",
-    "grunt-jasmine-node": "^0.2.1",
-    "escodegen": "^1.3.2"
-  }
-}
+{
+  "name": "filbert",
+  "description": "Python parser, Mozilla AST output",
+  "keywords": [
+    "python",
+    "parser",
+    "mozilla",
+    "ast"
+  ],
+  "main": "filbert.js",
+  "version": "0.1.20",
+  "engines": {
+    "node": ">=0.4.0"
+  },
+  "author": {
+    "name": "Matt Lott",
+    "email": "mattlott@gmail.com",
+    "url": "http://www.mattlott.com"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/differentmatt/filbert.git"
+  },
+  "licenses": [
+    {
+      "type": "MIT",
+      "url": "https://github.com/differentmatt/filbert/blob/master/LICENSE"
+    }
+  ],
+  "devDependencies": {
+    "grunt": "^0.4.4",
+    "grunt-contrib-jshint": "~0.6.3",
+    "grunt-contrib-nodeunit": "~0.2.0",
+    "grunt-contrib-uglify": "~0.2.2",
+    "grunt-jasmine-node": "^0.2.1",
+    "escodegen": "^1.3.2"
+  }
+}