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IR: support goto and labels

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This commit is contained in:
Andrew Kelley
2016-11-26 23:16:38 -05:00
parent a3db60b5d7
commit a52ede6494
4 changed files with 144 additions and 173 deletions
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15
src/ast_render.cpp
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@@ -356,6 +356,7 @@ static void render_node_extra(AstRender *ar, AstNode *node, bool grouped) {
switch (node->type) {
case NodeTypeSwitchProng:
case NodeTypeSwitchRange:
case NodeTypeLabel:
zig_unreachable();
case NodeTypeRoot:
for (size_t i = 0; i < node->data.root.top_level_decls.length; i += 1) {
@@ -426,6 +427,13 @@ static void render_node_extra(AstRender *ar, AstNode *node, bool grouped) {
ar->indent += ar->indent_size;
for (size_t i = 0; i < node->data.block.statements.length; i += 1) {
AstNode *statement = node->data.block.statements.at(i);
if (statement->type == NodeTypeLabel) {
ar->indent -= ar->indent_size;
print_indent(ar);
fprintf(ar->f, "%s:\n", buf_ptr(statement->data.label.name));
ar->indent += ar->indent_size;
continue;
}
print_indent(ar);
render_node_grouped(ar, statement);
if (i != node->data.block.statements.length - 1)
@@ -771,6 +779,11 @@ static void render_node_extra(AstRender *ar, AstNode *node, bool grouped) {
fprintf(ar->f, "}");
break;
}
case NodeTypeGoto:
{
fprintf(ar->f, "goto %s", buf_ptr(node->data.goto_expr.name));
break;
}
case NodeTypeFnDecl:
case NodeTypeParamDecl:
case NodeTypeErrorValueDecl:
@@ -781,8 +794,6 @@ static void render_node_extra(AstRender *ar, AstNode *node, bool grouped) {
case NodeTypeUse:
case NodeTypeZeroesLiteral:
case NodeTypeForExpr:
case NodeTypeLabel:
case NodeTypeGoto:
case NodeTypeBreak:
case NodeTypeContinue:
zig_panic("TODO more ast rendering");