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add support for (void) block expression

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Dennis Ranke
2021-11-13 17:43:04 +01:00
parent e4bf292e47
commit 29b8c04700
6 changed files with 84 additions and 33 deletions
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8
src/emit.rs
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@@ -316,6 +316,7 @@ fn collect_locals_expr<'a>(expr: &ast::Expression, locals: &mut Vec<(String, ast
ast::Expr::Assign { value, .. } => collect_locals_expr(value, locals),
ast::Expr::LocalTee { value, .. } => collect_locals_expr(value, locals),
ast::Expr::Loop { block, .. } => collect_locals_expr(block, locals),
ast::Expr::LabelBlock { block, .. } => collect_locals_expr(block, locals),
ast::Expr::Cast { value, .. } => collect_locals_expr(value, locals),
ast::Expr::FuncCall { params, .. } => {
for param in params {
@@ -610,6 +611,13 @@ fn emit_expression<'a>(ctx: &mut FunctionContext<'a>, expr: &'a ast::Expression)
ctx.labels.pop();
ctx.function.instruction(&Instruction::End);
}
ast::Expr::LabelBlock {label, block } => {
ctx.labels.push(label.to_string());
ctx.function.instruction(&Instruction::Block(map_block_type(block.type_)));
emit_expression(ctx, block);
ctx.labels.pop();
ctx.function.instruction(&Instruction::End);
}
ast::Expr::Variable(name) => {
if let Some(index) = ctx.locals.get(name) {
if let Some((expr, let_type)) = ctx.let_values.get(name.as_str()) {