aboutsummaryrefslogtreecommitdiffstats
path: root/askama_codegen/src/generator.rs
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--askama_codegen/src/generator.rs51
1 files changed, 40 insertions, 11 deletions
diff --git a/askama_codegen/src/generator.rs b/askama_codegen/src/generator.rs
index 13a91dd..c815676 100644
--- a/askama_codegen/src/generator.rs
+++ b/askama_codegen/src/generator.rs
@@ -3,36 +3,63 @@ use std::str;
struct Generator {
buf: String,
+ indent: u8,
+ start: bool,
}
impl Generator {
fn new() -> Generator {
- Generator { buf: String::new() }
+ Generator { buf: String::new(), indent: 0, start: true }
}
fn init(&mut self, name: &str) {
self.write("impl askama::Template for ");
self.write(name);
- self.write(" {\n");
- self.write(" fn render(&self) -> String {\n");
- self.write(" let mut buf = String::new();\n");
+ self.writeln(" {");
+ self.indent();
+ self.writeln("fn render(&self) -> String {");
+ self.indent();
+ self.writeln("let mut buf = String::new();");
+ }
+
+ fn indent(&mut self) {
+ self.indent += 1;
+ }
+
+ fn dedent(&mut self) {
+ self.indent -= 1;
}
fn write(&mut self, s: &str) {
+ if self.start {
+ for _ in 0..(self.indent * 4) {
+ self.buf.push(' ');
+ }
+ self.start = false;
+ }
self.buf.push_str(s);
}
+ fn writeln(&mut self, s: &str) {
+ if s.is_empty() {
+ return;
+ }
+ self.write(s);
+ self.buf.push('\n');
+ self.start = true;
+ }
+
fn visit_lit(&mut self, s: &[u8]) {
- self.write(" buf.push_str(");
+ self.write("buf.push_str(");
self.write(&format!("{:#?}", str::from_utf8(s).unwrap()));
- self.write(");\n");
+ self.writeln(");");
}
fn visit_expr(&mut self, s: &[u8]) {
- self.write(" buf.push_str(");
+ self.write("buf.push_str(");
self.write(&format!("&self.{}", str::from_utf8(s).unwrap()));
- self.write(");\n");
+ self.writeln(");");
}
fn handle(&mut self, tokens: &Vec<Node>) {
@@ -45,9 +72,11 @@ impl Generator {
}
fn finalize(&mut self) {
- self.write(" buf");
- self.write(" }\n");
- self.write("}\n\n");
+ self.writeln("buf");
+ self.dedent();
+ self.writeln("}");
+ self.dedent();
+ self.writeln("}");
}
fn result(self) -> String {