Add WasmParser.dup() and CodePtr.dup() #208 from matthew-mojira/dup-p…

…arser
titzer · Oct 16, 2024 · fc4c34a · fc4c34a
2 parents ecbab33 + 3d5e90c
commit fc4c34a
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/src/engine/CodePtr.v3 b/src/engine/CodePtr.v3
@@ -218,4 +218,7 @@ class CodePtr extends DataReader {
 		skip_immediates(opcode.imms);
 		return opcode;
 	}
+	def dup() -> CodePtr {
+		return CodePtr.new(null).reset(Ranges.dup(data), pos, limit);
+	}
 }
diff --git a/src/engine/WasmParser.v3 b/src/engine/WasmParser.v3
@@ -505,9 +505,13 @@ class WasmParser(extensions: Extension.set, limits: Limits, module: Module,
 		if (b < ' ' || b > 127) b = '.';
 		return b;
 	}
+
+	def dup() -> WasmParser {
+		return WasmParser.new(extensions, limits, module, ErrorGen.new(""), CodePtr.!(decoder).dup());
+	}
 }
 type Catch(tag: TagDecl, exnref: bool, depth: u32) {
 }
 type ContHandler(tag: TagDecl, depth: u32) {
 
-}
+}