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-rw-r--r--crates/ra_syntax/src/ast/make.rs35
1 files changed, 26 insertions, 9 deletions
diff --git a/crates/ra_syntax/src/ast/make.rs b/crates/ra_syntax/src/ast/make.rs
index 02966a3ff..862eb1172 100644
--- a/crates/ra_syntax/src/ast/make.rs
+++ b/crates/ra_syntax/src/ast/make.rs
@@ -33,6 +33,21 @@ pub fn record_field(name: ast::NameRef, expr: Option<ast::Expr>) -> ast::RecordF
33 } 33 }
34} 34}
35 35
36pub fn block_expr(
37 stmts: impl IntoIterator<Item = ast::Stmt>,
38 tail_expr: Option<ast::Expr>,
39) -> ast::BlockExpr {
40 let mut text = "{\n".to_string();
41 for stmt in stmts.into_iter() {
42 text += &format!(" {}\n", stmt.syntax());
43 }
44 if let Some(tail_expr) = tail_expr {
45 text += &format!(" {}\n", tail_expr.syntax())
46 }
47 text += "}";
48 ast_from_text(&format!("fn f() {}", text))
49}
50
36pub fn block_from_expr(e: ast::Expr) -> ast::Block { 51pub fn block_from_expr(e: ast::Expr) -> ast::Block {
37 return from_text(&format!("{{ {} }}", e.syntax())); 52 return from_text(&format!("{{ {} }}", e.syntax()));
38 53
@@ -62,6 +77,13 @@ pub fn expr_return() -> ast::Expr {
62pub fn expr_match(expr: ast::Expr, match_arm_list: ast::MatchArmList) -> ast::Expr { 77pub fn expr_match(expr: ast::Expr, match_arm_list: ast::MatchArmList) -> ast::Expr {
63 expr_from_text(&format!("match {} {}", expr.syntax(), match_arm_list.syntax())) 78 expr_from_text(&format!("match {} {}", expr.syntax(), match_arm_list.syntax()))
64} 79}
80pub fn expr_if(condition: ast::Expr, then_branch: ast::BlockExpr) -> ast::Expr {
81 expr_from_text(&format!("if {} {}", condition.syntax(), then_branch.syntax()))
82}
83pub fn expr_prefix(op: SyntaxKind, expr: ast::Expr) -> ast::Expr {
84 let token = token(op);
85 expr_from_text(&format!("{}{}", token, expr.syntax()))
86}
65fn expr_from_text(text: &str) -> ast::Expr { 87fn expr_from_text(text: &str) -> ast::Expr {
66 ast_from_text(&format!("const C: () = {};", text)) 88 ast_from_text(&format!("const C: () = {};", text))
67} 89}
@@ -158,14 +180,6 @@ pub fn where_clause(preds: impl IntoIterator<Item = ast::WherePred>) -> ast::Whe
158 } 180 }
159} 181}
160 182
161pub fn if_expression(condition: ast::Expr, statement: &str) -> ast::IfExpr {
162 ast_from_text(&format!(
163 "fn f() {{ if !{} {{\n {}\n}}\n}}",
164 condition.syntax().text(),
165 statement
166 ))
167}
168
169pub fn let_stmt(pattern: ast::Pat, initializer: Option<ast::Expr>) -> ast::LetStmt { 183pub fn let_stmt(pattern: ast::Pat, initializer: Option<ast::Expr>) -> ast::LetStmt {
170 let text = match initializer { 184 let text = match initializer {
171 Some(it) => format!("let {} = {};", pattern.syntax(), it.syntax()), 185 Some(it) => format!("let {} = {};", pattern.syntax(), it.syntax()),
@@ -173,6 +187,9 @@ pub fn let_stmt(pattern: ast::Pat, initializer: Option<ast::Expr>) -> ast::LetSt
173 }; 187 };
174 ast_from_text(&format!("fn f() {{ {} }}", text)) 188 ast_from_text(&format!("fn f() {{ {} }}", text))
175} 189}
190pub fn expr_stmt(expr: ast::Expr) -> ast::ExprStmt {
191 ast_from_text(&format!("fn f() {{ {}; }}", expr.syntax()))
192}
176 193
177pub fn token(kind: SyntaxKind) -> SyntaxToken { 194pub fn token(kind: SyntaxKind) -> SyntaxToken {
178 tokens::SOURCE_FILE 195 tokens::SOURCE_FILE
@@ -203,7 +220,7 @@ pub mod tokens {
203 use once_cell::sync::Lazy; 220 use once_cell::sync::Lazy;
204 221
205 pub(super) static SOURCE_FILE: Lazy<Parse<SourceFile>> = 222 pub(super) static SOURCE_FILE: Lazy<Parse<SourceFile>> =
206 Lazy::new(|| SourceFile::parse("const C: <()>::Item = (1 != 1, 2 == 2)\n;")); 223 Lazy::new(|| SourceFile::parse("const C: <()>::Item = (1 != 1, 2 == 2, !true)\n;"));
207 224
208 pub fn comma() -> SyntaxToken { 225 pub fn comma() -> SyntaxToken {
209 SOURCE_FILE 226 SOURCE_FILE