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Diffstat (limited to 'src/js/builtins/codegen/builtin-parser.ts')
-rw-r--r-- | src/js/builtins/codegen/builtin-parser.ts | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/src/js/builtins/codegen/builtin-parser.ts b/src/js/builtins/codegen/builtin-parser.ts deleted file mode 100644 index e96d79c63..000000000 --- a/src/js/builtins/codegen/builtin-parser.ts +++ /dev/null @@ -1,89 +0,0 @@ -import { applyReplacements } from "./replacements"; - -/** - * Slices a string until it hits a }, but keeping in mind JS comments, - * regex, template literals, comments, and matching { - * - * Used to extract function bodies without parsing the code. - * - * If you pass replace=true, it will run replacements on the code - */ -export function sliceSourceCode( - contents: string, - replace: boolean, -): { result: string; rest: string; usesThis: boolean } { - let bracketCount = 0; - let i = 0; - let result = ""; - let usesThis = false; - while (contents.length) { - // TODO: template literal, regexp - // these are important because our replacement logic would replace intrinsics - // within these, when it should remain as the literal dollar. - // but this isn't used in the codebase - i = contents.match(/\/\*|\/\/|'|"|{|}|`/)?.index ?? contents.length; - const chunk = replace ? applyReplacements(contents.slice(0, i)) : contents.slice(0, i); - if (chunk.includes("this")) usesThis = true; - result += chunk; - contents = contents.slice(i); - if (!contents.length) break; - if (contents.startsWith("/*")) { - i = contents.slice(2).indexOf("*/") + 2; - } else if (contents.startsWith("//")) { - i = contents.slice(2).indexOf("\n") + 2; - } else if (contents.startsWith("'")) { - i = contents.slice(1).match(/(?<!\\)'/)!.index! + 2; - } else if (contents.startsWith('"')) { - i = contents.slice(1).match(/(?<!\\)"/)!.index! + 2; - } else if (contents.startsWith("`")) { - const { result: result2, rest } = sliceTemplateLiteralSourceCode(contents.slice(1), replace); - result += "`" + result2; - contents = rest; - continue; - } else if (contents.startsWith("{")) { - bracketCount++; - i = 1; - } else if (contents.startsWith("}")) { - bracketCount--; - if (bracketCount <= 0) { - result += "}"; - contents = contents.slice(1); - break; - } - i = 1; - } else { - throw new Error("TODO"); - } - result += contents.slice(0, i); - contents = contents.slice(i); - } - - return { result, rest: contents, usesThis }; -} - -function sliceTemplateLiteralSourceCode(contents: string, replace: boolean) { - let i = 0; - let result = ""; - let usesThis = false; - while (contents.length) { - i = contents.match(/`|\${/)!.index!; - result += contents.slice(0, i); - contents = contents.slice(i); - if (!contents.length) break; - if (contents.startsWith("`")) { - result += "`"; - contents = contents.slice(1); - break; - } else if (contents.startsWith("$")) { - const { result: result2, rest, usesThis: usesThisVal } = sliceSourceCode(contents.slice(1), replace); - result += "$" + result2; - contents = rest; - usesThis ||= usesThisVal; - continue; - } else { - throw new Error("TODO"); - } - } - - return { result, rest: contents, usesThis }; -} |