add custom argument parser for rust

1 files changed, 32 insertions, 1 deletions

diff --git a/lib/compilers/argument-parsers.js b/lib/compilers/argument-parsers.js
index 19717dd2d..93de5f6a9 100644
--- a/lib/compilers/argument-parsers.js
+++ b/lib/compilers/argument-parsers.js
@@ -251,6 +251,36 @@ class VCParser extends BaseParser {
     }
 }
 
+class RustParser extends BaseParser {
+    static parse(compiler) {
+        return Promise.all([
+            RustParser.getOptions(compiler, "--help"),
+            RustParser.getOptions(compiler, "-C help")
+        ]).then(() => {
+            return compiler;
+        });
+    }
+
+    static getOptions(compiler, helpArg) {
+        return compiler.execCompilerCached(compiler.compiler.exe, [helpArg]).then(result => {
+            let options = {};
+            if (result.code === 0) {
+                if (helpArg === "-C help") {
+                    const optionFinder = /^\s*(-C\s*[a-z0-9=-]*)\s--\s(.*)/i;
+
+                    options = BaseParser.parseLines(result.stdout + result.stderr, optionFinder);
+                } else if (helpArg === "--help") {
+                    const optionFinder = /^\s*(--?[a-z0-9=+,[\]<>|-]*)\s*(.*)/i;
+
+                    options = BaseParser.parseLines(result.stdout + result.stderr, optionFinder);
+                }
+            }
+            compiler.possibleArguments.populateOptions(options);
+            return options;
+        });
+    }
+}
+
 module.exports = {
     Base: BaseParser,
     Clang: ClangParser,
@@ -258,5 +288,6 @@ module.exports = {
     Java: JavaParser,
     VC: VCParser,
     Pascal: PascalParser,
-    ISPC: ISPCParser
+    ISPC: ISPCParser,
+    Rust: RustParser
 };