From f43e83cffe0dbf0368c660ce342ac452ebe7ca22 Mon Sep 17 00:00:00 2001
From: Andrew Morris <voltrevo@gmail.com>
Date: Tue, 21 Mar 2023 14:29:38 +1100
Subject: [PATCH] Compile throw expressions

---
 valuescript_compiler/src/capture_finder.rs    | 4 +++-
 valuescript_compiler/src/function_compiler.rs | 9 ++++++++-
 valuescript_compiler/src/scope_analysis.rs    | 4 ++--
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/valuescript_compiler/src/capture_finder.rs b/valuescript_compiler/src/capture_finder.rs
index 7f7e6ad..f8b27f7 100644
--- a/valuescript_compiler/src/capture_finder.rs
+++ b/valuescript_compiler/src/capture_finder.rs
@@ -293,7 +293,9 @@ impl CaptureFinder {
         }
       }
       Switch(_) => std::panic!("Not implemented: Switch statement"),
-      Throw(_) => std::panic!("Not implemented: Throw statement"),
+      Throw(throw) => {
+        self.expr(scope, &throw.arg);
+      }
       Try(_) => std::panic!("Not implemented: Try statement"),
       While(while_) => {
         self.expr(scope, &while_.test);
diff --git a/valuescript_compiler/src/function_compiler.rs b/valuescript_compiler/src/function_compiler.rs
index ade6593..ec7a61b 100644
--- a/valuescript_compiler/src/function_compiler.rs
+++ b/valuescript_compiler/src/function_compiler.rs
@@ -796,7 +796,14 @@ impl FunctionCompiler {
         self.if_(if_, scope);
       }
       Switch(switch) => self.todo(switch.span, "Switch statement"),
-      Throw(throw) => self.todo(throw.span, "Throw statement"),
+      Throw(throw) => {
+        let mut expression_compiler = ExpressionCompiler { fnc: self, scope };
+
+        let arg = expression_compiler.compile(&throw.arg, None);
+        let instr = Instruction::Throw(self.use_(arg));
+
+        self.push(instr);
+      }
       Try(try_) => self.todo(try_.span, "Try statement"),
       While(while_) => {
         self.while_(while_, scope);
diff --git a/valuescript_compiler/src/scope_analysis.rs b/valuescript_compiler/src/scope_analysis.rs
index bb9f9e3..d66e3f6 100644
--- a/valuescript_compiler/src/scope_analysis.rs
+++ b/valuescript_compiler/src/scope_analysis.rs
@@ -1398,8 +1398,8 @@ impl ScopeAnalysis {
           }
         }
       }
-      Stmt::Throw(throw_) => {
-        self.expr(&scope, &throw_.arg);
+      Stmt::Throw(throw) => {
+        self.expr(&scope, &throw.arg);
       }
       Stmt::Try(try_) => {
         self.block_stmt(&scope, &try_.block);