diff --git a/package-lock.json b/package-lock.json
index 740ff87..bdb155d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,12 +10,16 @@
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@@ -1632,6 +1636,27 @@
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-        "@typescript-eslint/visitor-keys": "6.21.0",
+        "@typescript-eslint/types": "7.8.0",
+        "@typescript-eslint/visitor-keys": "7.8.0",
         "debug": "^4.3.4",
         "globby": "^11.1.0",
         "is-glob": "^4.0.3",
-        "minimatch": "9.0.3",
-        "semver": "^7.5.4",
-        "ts-api-utils": "^1.0.1"
+        "minimatch": "^9.0.4",
+        "semver": "^7.6.0",
+        "ts-api-utils": "^1.3.0"
       },
       "engines": {
-        "node": "^16.0.0 || >=18.0.0"
+        "node": "^18.18.0 || >=20.0.0"
       },
       "funding": {
         "type": "opencollective",
@@ -2103,22 +2128,10 @@
         "balanced-match": "^1.0.0"
       }
     },
-    "node_modules/@typescript-eslint/typescript-estree/node_modules/lru-cache": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
-      "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
-      "dev": true,
-      "dependencies": {
-        "yallist": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=10"
-      }
-    },
     "node_modules/@typescript-eslint/typescript-estree/node_modules/minimatch": {
-      "version": "9.0.3",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.3.tgz",
-      "integrity": "sha512-RHiac9mvaRw0x3AYRgDC1CxAP7HTcNrrECeA8YYJeWnpo+2Q5CegtZjaotWTWxDG3UeGA1coE05iH1mPjT/2mg==",
+      "version": "9.0.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.4.tgz",
+      "integrity": "sha512-KqWh+VchfxcMNRAJjj2tnsSJdNbHsVgnkBhTNrW7AjVo6OvLtxw8zfT9oLw1JSohlFzJ8jCoTgaoXvJ+kHt6fw==",
       "dev": true,
       "dependencies": {
         "brace-expansion": "^2.0.1"
@@ -2131,13 +2144,10 @@
       }
     },
     "node_modules/@typescript-eslint/typescript-estree/node_modules/semver": {
-      "version": "7.6.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.0.tgz",
-      "integrity": "sha512-EnwXhrlwXMk9gKu5/flx5sv/an57AkRplG3hTK68W7FRDN+k+OWBj65M7719OkA82XLBxrcX0KSHj+X5COhOVg==",
+      "version": "7.6.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.1.tgz",
+      "integrity": "sha512-f/vbBsu+fOiYt+lmwZV0rVwJScl46HppnOA1ZvIuBWKOTlllpyJ3bfVax76/OrhCH38dyxoDIA8K7uB963IYgA==",
       "dev": true,
-      "dependencies": {
-        "lru-cache": "^6.0.0"
-      },
       "bin": {
         "semver": "bin/semver.js"
       },
@@ -2145,23 +2155,17 @@
         "node": ">=10"
       }
     },
-    "node_modules/@typescript-eslint/typescript-estree/node_modules/yallist": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "dev": true
-    },
     "node_modules/@typescript-eslint/visitor-keys": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-6.21.0.tgz",
-      "integrity": "sha512-JJtkDduxLi9bivAB+cYOVMtbkqdPOhZ+ZI5LC47MIRrDV4Yn2o+ZnW10Nkmr28xRpSpdJ6Sm42Hjf2+REYXm0A==",
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-7.8.0.tgz",
+      "integrity": "sha512-q4/gibTNBQNA0lGyYQCmWRS5D15n8rXh4QjK3KV+MBPlTYHpfBUT3D3PaPR/HeNiI9W6R7FvlkcGhNyAoP+caA==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/types": "6.21.0",
-        "eslint-visitor-keys": "^3.4.1"
+        "@typescript-eslint/types": "7.8.0",
+        "eslint-visitor-keys": "^3.4.3"
       },
       "engines": {
-        "node": "^16.0.0 || >=18.0.0"
+        "node": "^18.18.0 || >=20.0.0"
       },
       "funding": {
         "type": "opencollective",
@@ -2189,6 +2193,15 @@
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
+    "node_modules/acorn-walk": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.2.tgz",
+      "integrity": "sha512-cjkyv4OtNCIeqhHrfS81QWXoCBPExR/J62oyEqepVw8WaQeSqpW2uhuLPh1m9eWhDuOo/jUXVTlifvesOWp/4A==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/ajv": {
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
@@ -2908,15 +2921,15 @@
       }
     },
     "node_modules/eslint": {
-      "version": "9.1.1",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.1.1.tgz",
-      "integrity": "sha512-b4cRQ0BeZcSEzPpY2PjFY70VbO32K7BStTGtBsnIGdTSEEQzBi8hPBcGQmTG2zUvFr9uLe0TK42bw8YszuHEqg==",
+      "version": "9.2.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.2.0.tgz",
+      "integrity": "sha512-0n/I88vZpCOzO+PQpt0lbsqmn9AsnsJAQseIqhZFI8ibQT0U1AkEKRxA3EVMos0BoHSXDQvCXY25TUjB5tr8Og==",
       "dev": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
         "@eslint/eslintrc": "^3.0.2",
-        "@eslint/js": "9.1.1",
+        "@eslint/js": "9.2.0",
         "@humanwhocodes/config-array": "^0.13.0",
         "@humanwhocodes/module-importer": "^1.0.1",
         "@humanwhocodes/retry": "^0.2.3",
@@ -2971,12 +2984,12 @@
       }
     },
     "node_modules/eslint-plugin-jest": {
-      "version": "28.3.0",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-jest/-/eslint-plugin-jest-28.3.0.tgz",
-      "integrity": "sha512-5LjCSSno8E+IUCOX4hJiIb/upPIgpkaDEcaN/40gOcw26t/5UTLHFc4JdxKjOOvGTh0XdCu+fNr0fpOVNvcxMA==",
+      "version": "28.5.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-jest/-/eslint-plugin-jest-28.5.0.tgz",
+      "integrity": "sha512-6np6DGdmNq/eBbA7HOUNV8fkfL86PYwBfwyb8n23FXgJNTR8+ot3smRHjza9LGsBBZRypK3qyF79vMjohIL8eQ==",
       "dev": true,
       "dependencies": {
-        "@typescript-eslint/utils": "^6.0.0"
+        "@typescript-eslint/utils": "^6.0.0 || ^7.0.0"
       },
       "engines": {
         "node": "^16.10.0 || ^18.12.0 || >=20.0.0"
@@ -2996,50 +3009,35 @@
       }
     },
     "node_modules/eslint-plugin-jest/node_modules/@typescript-eslint/utils": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-6.21.0.tgz",
-      "integrity": "sha512-NfWVaC8HP9T8cbKQxHcsJBY5YE1O33+jpMwN45qzWWaPDZgLIbo12toGMWnmhvCpd3sIxkpDw3Wv1B3dYrbDQQ==",
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-7.8.0.tgz",
+      "integrity": "sha512-L0yFqOCflVqXxiZyXrDr80lnahQfSOfc9ELAAZ75sqicqp2i36kEZZGuUymHNFoYOqxRT05up760b4iGsl02nQ==",
       "dev": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.4.0",
-        "@types/json-schema": "^7.0.12",
-        "@types/semver": "^7.5.0",
-        "@typescript-eslint/scope-manager": "6.21.0",
-        "@typescript-eslint/types": "6.21.0",
-        "@typescript-eslint/typescript-estree": "6.21.0",
-        "semver": "^7.5.4"
+        "@types/json-schema": "^7.0.15",
+        "@types/semver": "^7.5.8",
+        "@typescript-eslint/scope-manager": "7.8.0",
+        "@typescript-eslint/types": "7.8.0",
+        "@typescript-eslint/typescript-estree": "7.8.0",
+        "semver": "^7.6.0"
       },
       "engines": {
-        "node": "^16.0.0 || >=18.0.0"
+        "node": "^18.18.0 || >=20.0.0"
       },
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/typescript-eslint"
       },
       "peerDependencies": {
-        "eslint": "^7.0.0 || ^8.0.0"
-      }
-    },
-    "node_modules/eslint-plugin-jest/node_modules/lru-cache": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
-      "integrity": "sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==",
-      "dev": true,
-      "dependencies": {
-        "yallist": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=10"
+        "eslint": "^8.56.0"
       }
     },
     "node_modules/eslint-plugin-jest/node_modules/semver": {
-      "version": "7.6.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.0.tgz",
-      "integrity": "sha512-EnwXhrlwXMk9gKu5/flx5sv/an57AkRplG3hTK68W7FRDN+k+OWBj65M7719OkA82XLBxrcX0KSHj+X5COhOVg==",
+      "version": "7.6.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.1.tgz",
+      "integrity": "sha512-f/vbBsu+fOiYt+lmwZV0rVwJScl46HppnOA1ZvIuBWKOTlllpyJ3bfVax76/OrhCH38dyxoDIA8K7uB963IYgA==",
       "dev": true,
-      "dependencies": {
-        "lru-cache": "^6.0.0"
-      },
       "bin": {
         "semver": "bin/semver.js"
       },
@@ -3047,12 +3045,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/eslint-plugin-jest/node_modules/yallist": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "dev": true
-    },
     "node_modules/eslint-scope": {
       "version": "8.0.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-8.0.1.tgz",
@@ -3070,9 +3062,9 @@
       }
     },
     "node_modules/eslint-visitor-keys": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.1.tgz",
-      "integrity": "sha512-pZnmmLwYzf+kWaM/Qgrvpen51upAktaaiI01nsJD/Yr3lMOdNtq0cxkrrg16w64VtisN6okbs7Q8AfGqj4c9fA==",
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz",
+      "integrity": "sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==",
       "dev": true,
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
@@ -6233,9 +6225,9 @@
       }
     },
     "node_modules/rollup": {
-      "version": "4.17.1",
-      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.17.1.tgz",
-      "integrity": "sha512-0gG94inrUtg25sB2V/pApwiv1lUb0bQ25FPNuzO89Baa+B+c0ccaaBKM5zkZV/12pUUdH+lWCSm9wmHqyocuVQ==",
+      "version": "4.17.2",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.17.2.tgz",
+      "integrity": "sha512-/9ClTJPByC0U4zNLowV1tMBe8yMEAxewtR3cUNX5BoEpGH3dQEWpJLr6CLp0fPdYRF/fzVOgvDb1zXuakwF5kQ==",
       "dev": true,
       "dependencies": {
         "@types/estree": "1.0.5"
@@ -6248,22 +6240,22 @@
         "npm": ">=8.0.0"
       },
       "optionalDependencies": {
-        "@rollup/rollup-android-arm-eabi": "4.17.1",
-        "@rollup/rollup-android-arm64": "4.17.1",
-        "@rollup/rollup-darwin-arm64": "4.17.1",
-        "@rollup/rollup-darwin-x64": "4.17.1",
-        "@rollup/rollup-linux-arm-gnueabihf": "4.17.1",
-        "@rollup/rollup-linux-arm-musleabihf": "4.17.1",
-        "@rollup/rollup-linux-arm64-gnu": "4.17.1",
-        "@rollup/rollup-linux-arm64-musl": "4.17.1",
-        "@rollup/rollup-linux-powerpc64le-gnu": "4.17.1",
-        "@rollup/rollup-linux-riscv64-gnu": "4.17.1",
-        "@rollup/rollup-linux-s390x-gnu": "4.17.1",
-        "@rollup/rollup-linux-x64-gnu": "4.17.1",
-        "@rollup/rollup-linux-x64-musl": "4.17.1",
-        "@rollup/rollup-win32-arm64-msvc": "4.17.1",
-        "@rollup/rollup-win32-ia32-msvc": "4.17.1",
-        "@rollup/rollup-win32-x64-msvc": "4.17.1",
+        "@rollup/rollup-android-arm-eabi": "4.17.2",
+        "@rollup/rollup-android-arm64": "4.17.2",
+        "@rollup/rollup-darwin-arm64": "4.17.2",
+        "@rollup/rollup-darwin-x64": "4.17.2",
+        "@rollup/rollup-linux-arm-gnueabihf": "4.17.2",
+        "@rollup/rollup-linux-arm-musleabihf": "4.17.2",
+        "@rollup/rollup-linux-arm64-gnu": "4.17.2",
+        "@rollup/rollup-linux-arm64-musl": "4.17.2",
+        "@rollup/rollup-linux-powerpc64le-gnu": "4.17.2",
+        "@rollup/rollup-linux-riscv64-gnu": "4.17.2",
+        "@rollup/rollup-linux-s390x-gnu": "4.17.2",
+        "@rollup/rollup-linux-x64-gnu": "4.17.2",
+        "@rollup/rollup-linux-x64-musl": "4.17.2",
+        "@rollup/rollup-win32-arm64-msvc": "4.17.2",
+        "@rollup/rollup-win32-ia32-msvc": "4.17.2",
+        "@rollup/rollup-win32-x64-msvc": "4.17.2",
         "fsevents": "~2.3.2"
       }
     },
@@ -6493,9 +6485,9 @@
       }
     },
     "node_modules/terser": {
-      "version": "5.30.4",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-5.30.4.tgz",
-      "integrity": "sha512-xRdd0v64a8mFK9bnsKVdoNP9GQIKUAaJPTaqEQDL4w/J8WaW4sWXXoMZ+6SimPkfT5bElreXf8m9HnmPc3E1BQ==",
+      "version": "5.31.0",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.31.0.tgz",
+      "integrity": "sha512-Q1JFAoUKE5IMfI4Z/lkE/E6+SwgzO+x4tq4v1AyBLRj8VSYvRO6A/rQrPg1yud4g0En9EKI1TvFRF2tQFcoUkg==",
       "dev": true,
       "dependencies": {
         "@jridgewell/source-map": "^0.3.3",
diff --git a/package.json b/package.json
index b39e88c..8c9406d 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "typings"
   ],
   "scripts": {
-    "build": "npm run clean && rollup -c",
+    "build": "npm run clean && rollup -c --inline",
     "clean": "rm -rf ./lib/ && mkdir lib ",
     "lint": "eslint ./src ./test",
     "prettify": "prettier --write ./**/*.js",
@@ -56,12 +56,16 @@
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^25.0.7",
+    "@rollup/plugin-replace": "^5.0.5",
     "@rollup/plugin-terser": "^0.4.4",
+    "acorn": "^8.11.3",
+    "acorn-walk": "^8.3.2",
     "eslint": "^9.1.1",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-jest": "^28.3.0",
     "globals": "^15.1.0",
     "jest": "^29.7.0",
+    "magic-string": "^0.30.10",
     "prettier": "3.2.5",
     "rollup": "^4.17.1"
   },
diff --git a/rollup.config.js b/rollup.config.js
index f1822fb..537ecd1 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,22 +1,34 @@
 'use strict'
 
-const terser = require('@rollup/plugin-terser')
 const commonjs = require('@rollup/plugin-commonjs')
+const replace = require('@rollup/plugin-replace')
+const terser = require('@rollup/plugin-terser')
 
-module.exports = {
-    input: 'src/xmlToJson.js',
-    output: [
-        {
-            file: 'lib/simpleXmlToJson.min.js',
-            format: 'cjs',
-            exports: 'auto',
-            plugins: [terser()]
-        },
-        {
-            file: 'lib/simpleXmlToJson.js',
-            format: 'cjs',
-            exports: 'auto'
-        }
-    ],
-    plugins: [commonjs()]
+module.exports = (commandLineArgs) => {
+    const { inline } = commandLineArgs
+    delete commandLineArgs.inline
+    return {
+        input: 'src/xmlToJson.js',
+        output: [
+            {
+                file: 'lib/simpleXmlToJson.min.js',
+                format: 'cjs',
+                exports: 'auto',
+                plugins: [terser()]
+            },
+            {
+                file: 'lib/simpleXmlToJson.js',
+                format: 'cjs',
+                exports: 'auto'
+            }
+        ],
+        plugins: [
+            commonjs(),
+            replace({
+                preventAssignment: true,
+                values: { 'BUILD.COMPTIME': 'false' }
+            }),
+            ...(inline ? require('./scripts/inline-plugins') : [])
+        ]
+    }
 }
diff --git a/scripts/inline-plugins.js b/scripts/inline-plugins.js
new file mode 100644
index 0000000..10cb2e8
--- /dev/null
+++ b/scripts/inline-plugins.js
@@ -0,0 +1,240 @@
+'use strict'
+
+const acorn = require('acorn')
+const MagicString = require('magic-string')
+const replacePlugin = require('@rollup/plugin-replace')
+const walk = require('acorn-walk')
+
+const candidates = {
+    ...require('../src/lexer').createLexer(''),
+    ...require('../src/model'),
+    ...require('../src/transpiler')
+}
+const constants = require('../src/constants')
+const inlineCommentRegExp = /\/\*\s*inline\s*\*\//
+const inlineInfo = new Map()
+const inlineMisses = new Set()
+
+const createAssertNonParamId = (info, paramLookup) => {
+    const { name: funcName, body } = info
+    return (id) => {
+        const { name, start } = id
+        if (paramLookup.has(name)) {
+            const { lineStart, lineEnd } = getLineInfo(body, start)
+            throw new Error(
+                `Problem inlining '${name}' in ${funcName}:\n${body.slice(
+                    lineStart,
+                    lineEnd
+                )}\n${' '.repeat(start - lineStart)}^`
+            )
+        }
+    }
+}
+
+const createFuncInfo = (funcName) => {
+    const func = candidates[funcName]
+    if (typeof func !== 'function') return undefined
+    const source = `${func}`
+    const ast = acorn.parse(source, { ecmaVersion: 'latest' })
+    const {
+        body: { 0: stmtNode }
+    } = ast
+    const funcNode = stmtNode.expression ?? stmtNode
+    const { body: bodyNode } = funcNode
+    const { start: bodyStart } = bodyNode
+    const padding = ' '.repeat(bodyStart)
+    const magicString = new MagicString(
+        padding + source.slice(bodyStart, bodyNode.end)
+    )
+    replaceInlinableCallExpressions(ast, magicString)
+    const info = {
+        name: funcName,
+        params: funcNode.params.map(getIdent).flat(),
+        body: magicString.toString(),
+        ast: funcNode
+    }
+    inlineInfo.set(funcName, info)
+    return info
+}
+
+const getConstantsReplacements = () => {
+    const replacements = {}
+    for (const { 0: name, 1: constant } of Object.entries(constants)) {
+        if (typeof constant === 'object' && constant !== null) {
+            for (const { 0: key, 1: value } of Object.entries(constant)) {
+                replacements[`${name}.${key}`] = JSON.stringify(value)
+            }
+        } else {
+            replacements[name] = JSON.stringify(constant)
+        }
+    }
+    return replacements
+}
+
+const getIdent = (node) => {
+    switch (node.type) {
+        case 'ArrayPattern':
+            return node.elements.map(getParam)
+        case 'AssignmentPattern':
+            return node.left.name
+        case 'ObjectPattern':
+            return node.properties.map(getParam)
+        case 'RestElement':
+            return node.argument.name
+        case 'Identifier':
+        default:
+            return node.name
+    }
+}
+
+const getInlineInfo = (funcName) => {
+    let info = inlineInfo.get(funcName)
+    if (info) return info
+    info = createFuncInfo(funcName)
+    if (info === undefined) return undefined
+    inlineInfo.set(funcName, info)
+    return info
+}
+
+const getLineInfo = (input, pos) => {
+    let line = 1
+    let cur = 0
+    while (true) {
+        const nextBreak = nextLineBreak(input, cur, pos)
+        if (nextBreak < 0) {
+            return {
+                line,
+                lineStart: cur,
+                lineEnd: nextLineBreak(input, pos),
+                col: pos - cur
+            }
+        }
+        line += 1
+        cur = nextBreak + 1
+    }
+}
+
+const nextLineBreak = (input, from, end = input.length) => {
+    const { length } = input
+    if (length === 0) return -1
+    const lastIndex = length - 1
+    for (let i = from; i < end; i += 1) {
+        if (i === lastIndex) return i
+        const code = input.charCodeAt(i)
+        if (code === 10 || code === 13 || code === 0x2028 || code === 0x2029) {
+            return i < end - 1 && code === 13 && input.charCodeAt(i + 1) === 10
+                ? i + 1
+                : i
+        }
+    }
+    return -1
+}
+
+const paramIdentifierVisitor = (() => {
+    const AssignmentExpression = (node, st, c) => {
+        // Skip replacing identifiers on the left side of an assignment.
+        st.assertNonParamId(node.left)
+        c(node.right, st, 'Expression')
+    }
+    const Identifier = (node, { magicString, paramToArg }) => {
+        const arg = paramToArg.get(node.name)
+        if (arg) {
+            magicString.overwrite(node.start, node.end, arg)
+        }
+    }
+    const Property = (node, st, c) => {
+        // Skip shorthand property identifiers.
+        if (node.shorthand) return st.assertNonParamId(node.key)
+        if (node.computed) c(node.key, st, 'Expression')
+        if (node.value) c(node.value, st, 'Expression')
+    }
+    const VariableDeclarator = (node, st, c) => {
+        // Skip replacing local variable declarators.
+        st.assertNonParamId(node.id)
+        if (node.init) c(node.init, st, 'Expression')
+    }
+    return {
+        AssignmentExpression,
+        AssignmentPattern: AssignmentExpression,
+        Identifier,
+        MethodDefinition: Property,
+        Property,
+        PropertyDefinition: Property,
+        VariableDeclarator
+    }
+})()
+
+const inlinableCallExpressionReplacer = (match, funcName, args) => {
+    const info = getInlineInfo(funcName)
+    if (info === undefined) {
+        if (!inlineMisses.has(funcName)) {
+            inlineMisses.add(funcName)
+            console.warn(`inline miss for ${funcName}()`)
+        }
+        return match
+    }
+    const magicString = new MagicString(info.body)
+    const paramToArg = new Map(info.params.map((p, i) => [p, `${args[i]}`]))
+    walk.recursive(
+        info.ast.body,
+        {
+            magicString,
+            paramToArg,
+            assertNonParamId: createAssertNonParamId(info, paramToArg)
+        },
+        paramIdentifierVisitor
+    )
+    const result = magicString.toString()
+    const trimmed = result.trim()
+    return info.ast.expression ? `(${trimmed})` : trimmed.slice(1, -1)
+}
+
+const inlinableCallExpressionVisitor = {
+    CallExpression(node, { magicString }) {
+        const { arguments: args, start, end } = node
+        if (
+            inlineCommentRegExp.test(
+                magicString.original.slice(
+                    start,
+                    args.length ? args[0].start : end - 1
+                )
+            )
+        ) {
+            magicString.overwrite(
+                start,
+                end,
+                inlinableCallExpressionReplacer(
+                    magicString.original.slice(start, end),
+                    node.callee.name,
+                    args.map((a) => magicString.original.slice(a.start, a.end))
+                )
+            )
+        }
+    }
+}
+
+const replaceInlinableCallExpressions = (ast, magicString) => {
+    walk.simple(ast, inlinableCallExpressionVisitor, null, { magicString })
+}
+
+module.exports = [
+    {
+        name: 'inline',
+        transform: (source) => {
+            const ast = acorn.parse(source, {
+                ecmaVersion: 'latest',
+                sourceType: 'module'
+            })
+            const magicString = new MagicString(source)
+            replaceInlinableCallExpressions(ast, magicString)
+            return {
+                code: magicString.toString(),
+                map: magicString.generateMap({ hires: true })
+            }
+        }
+    },
+    replacePlugin({
+        preventAssignment: false,
+        values: getConstantsReplacements()
+    })
+]
diff --git a/src/constants.js b/src/constants.js
new file mode 100644
index 0000000..1d6be83
--- /dev/null
+++ b/src/constants.js
@@ -0,0 +1,24 @@
+'use strict'
+
+module.exports = {
+    BUILD: {
+        COMPTIME: true
+    },
+    NODE_TYPE: {
+        ATTRIBUTE: 'ATTRIBUTE',
+        CONTENT: 'CONTENT',
+        ELEMENT: 'ELEMENT',
+        ROOT: 'ROOT'
+    },
+    TOKEN_TYPE: {
+        OPEN_BRACKET: 'OPEN_BRACKET',
+        ELEMENT_TYPE: 'ELEMENT_TYPE',
+        CLOSE_ELEMENT: 'CLOSE_ELEMENT',
+        ATTRIB_NAME: 'ATTRIB_NAME',
+        ATTRIB_VALUE: 'ATTRIB_VALUE',
+        ASSIGN: 'ASSIGN',
+        CLOSE_BRACKET: 'CLOSE_BRACKET',
+        CONTENT: 'CONTENT',
+        EOF: 'EOF'
+    }
+}
diff --git a/src/converters/astToJson.js b/src/converters/astToJson.js
index 70ab75f..bfe4c0e 100644
--- a/src/converters/astToJson.js
+++ b/src/converters/astToJson.js
@@ -1,5 +1,7 @@
 'use strict'
 
+const { NODE_TYPE } = require('../constants')
+
 const convertToJSON = ast => {
     return buildJSONFromNode(ast.value.children[0])
 }
@@ -8,7 +10,7 @@ const buildJSONFromNode = node => {
     if (!node) return null
     const json = {}
     switch (node.type) {
-        case 'ELEMENT': {
+        case NODE_TYPE.ELEMENT: {
             let element = {}
             const attribs = buildAttributes(node.value.attributes)
             const children = buildJSONFromNode(node.value.children)
@@ -22,12 +24,12 @@ const buildJSONFromNode = node => {
             json[node.value.type] = element
             break
         }
-        case 'ATTRIBUTE': {
+        case NODE_TYPE.ATTRIBUTE: {
             const attribNameAndValue = node.value
             json[attribNameAndValue.name] = attribNameAndValue.value
             break
         }
-        case 'CONTENT': {
+        case NODE_TYPE.CONTENT: {
             return {content: node.value}
         }
         default: {
@@ -50,7 +52,7 @@ const buildChildren = children => {
     }
 }
 
-const isContentChildren = children => children && Array.isArray(children) && children.length === 1 && children[0].type === 'CONTENT'
+const isContentChildren = children => children && Array.isArray(children) && children.length === 1 && children[0].type === NODE_TYPE.CONTENT
 
 const buildAttributes = arrayNodes => {
     if (arrayNodes && Array.isArray(arrayNodes)) {
diff --git a/src/lexer.js b/src/lexer.js
index 3dbbeb2..6d7dcf7 100644
--- a/src/lexer.js
+++ b/src/lexer.js
@@ -1,7 +1,9 @@
 'use strict'
 
-const { Token, TOKEN_TYPE } = require('./model')
-const EOF_TOKEN = Token('EOF')
+const { BUILD, TOKEN_TYPE } = require('./constants')
+const { Token } = require('./model')
+
+const EOF_TOKEN = Token(TOKEN_TYPE.EOF)
 
 const isCharBlank = (char) =>
     char === ' ' || char === '\n' || char === '\r' || char === '\t'
@@ -230,7 +232,21 @@ function createLexer(xmlAsString) {
     return {
         peek,
         next,
-        hasNext
+        hasNext,
+        // prettier-ignore
+        ...(BUILD.COMPTIME
+            ? {
+                getInitialPosForLexer,
+                isAssignToAttribute,
+                isBlankSpace,
+                isElementBegin,
+                isQuote,
+                replaceQuotes,
+                skipQuotes,
+                skipSpaces,
+                skipXMLDocumentHeader
+            }
+            : {})
     }
 }
 
diff --git a/src/model.js b/src/model.js
index d3c289a..93d5999 100644
--- a/src/model.js
+++ b/src/model.js
@@ -1,23 +1,10 @@
 'use strict'
 
-const TOKEN_TYPE = {
-    OPEN_BRACKET: 'OPEN_BRACKET',
-    ELEMENT_TYPE: 'ELEMENT_TYPE',
-    CLOSE_ELEMENT: 'CLOSE_ELEMENT',
-    ATTRIB_NAME: 'ATTRIB_NAME',
-    ATTRIB_VALUE: 'ATTRIB_VALUE',
-    ASSIGN: 'ASSIGN',
-    CLOSE_BRACKET: 'CLOSE_BRACKET',
-    CONTENT: 'CONTENT',
-    EOF: 'EOF'
-}
-
 const Token = (type, value) => ({
     type,
     value
 })
 
 module.exports = {
-    Token,
-    TOKEN_TYPE
+    Token
 }
diff --git a/src/transpiler.js b/src/transpiler.js
index 97399ec..976d0cc 100644
--- a/src/transpiler.js
+++ b/src/transpiler.js
@@ -1,7 +1,8 @@
 'use strict'
 
+const { TOKEN_TYPE } = require('./constants')
 const { createLexer } = require('./lexer')
-const { Token, TOKEN_TYPE } = require('./model')
+const { Token } = require('./model')
 // AST Node types
 const [ROOT, ELEMENT, ATTRIBUTE, CONTENT] = [
     'ROOT',
@@ -161,8 +162,9 @@ function transpile(xmlAsString, astConverter) {
 }
 
 module.exports = {
-    transpile,
-    Node,
+    AttribNode,
+    ContentNode,
     ElementNode,
-    AttribNode
+    Node,
+    transpile
 }
diff --git a/test/lexer.spec.js b/test/lexer.spec.js
index b9d9f24..b22a6cd 100644
--- a/test/lexer.spec.js
+++ b/test/lexer.spec.js
@@ -1,8 +1,9 @@
 'use strict'
 
 const testUtils = require('./testUtils')
+const { TOKEN_TYPE } = require('../src/constants')
 const lexer = require('../src/lexer')
-const { Token, TOKEN_TYPE } = require('../src/model')
+const { Token } = require('../src/model')
 
 describe('Lexer', () => {
     it('Simple lexing', () => {