Method compile_expr_tstring

crates/codegen/src/compile.rs:10269–10326

(&mut self, expr_tstring: &ast::ExprTString)

    }

    fn compile_expr_tstring(&mut self, expr_tstring: &ast::ExprTString) -> CompileResult<()> {
        // ast::TStringValue can contain multiple ast::TString parts (implicit concatenation)
        // Each ast::TString part should be compiled and the results merged into a single Template
        let tstring_value = &expr_tstring.value;

        // Collect all strings and compile all interpolations
        let mut all_strings: Vec<Wtf8Buf> = Vec::new();
        let mut current_string = Wtf8Buf::new();
        let mut interp_count: u32 = 0;

        for tstring in tstring_value.iter() {
            self.compile_tstring_into(
                tstring,
                &mut all_strings,
                &mut current_string,
                &mut interp_count,
            )?;
        }

        // Add trailing string
        all_strings.push(core::mem::take(&mut current_string));

        // Now build the Template:
        // Stack currently has all interpolations from compile_tstring_into calls

        // 1. Build interpolations tuple from the interpolations on the stack
        emit!(
            self,
            Instruction::BuildTuple {
                count: interp_count
            }
        );

        // 2. Load all string parts
        let string_count: u32 = all_strings
            .len()
            .try_into()
            .expect("t-string string count overflowed");
        for s in &all_strings {
            self.emit_load_const(ConstantData::Str { value: s.clone() });
        }

        // 3. Build strings tuple
        emit!(
            self,
            Instruction::BuildTuple {
                count: string_count
            }
        );

        // 4. Swap so strings is below interpolations: [interps, strings] -> [strings, interps]
        emit!(self, Instruction::Swap { i: 2 });

        // 5. Build the Template
        emit!(self, Instruction::BuildTemplate);

        Ok(())
    }