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|
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use core::prelude::*;
use ast;
use codemap;
use codemap::span;
use ext::base::ext_ctxt;
use ext::build;
use opt_vec::OptVec;
use core::option;
pub struct Field {
ident: ast::ident,
ex: @ast::expr
}
pub fn mk_expr(cx: ext_ctxt,
sp: codemap::span,
+expr: ast::expr_)
-> @ast::expr {
@ast::expr {
id: cx.next_id(),
callee_id: cx.next_id(),
node: expr,
span: sp,
}
}
pub fn mk_lit(cx: ext_ctxt, sp: span, lit: ast::lit_) -> @ast::expr {
let sp_lit = @codemap::spanned { node: lit, span: sp };
mk_expr(cx, sp, ast::expr_lit(sp_lit))
}
pub fn mk_int(cx: ext_ctxt, sp: span, i: int) -> @ast::expr {
let lit = ast::lit_int(i as i64, ast::ty_i);
return mk_lit(cx, sp, lit);
}
pub fn mk_uint(cx: ext_ctxt, sp: span, u: uint) -> @ast::expr {
let lit = ast::lit_uint(u as u64, ast::ty_u);
return mk_lit(cx, sp, lit);
}
pub fn mk_u8(cx: ext_ctxt, sp: span, u: u8) -> @ast::expr {
let lit = ast::lit_uint(u as u64, ast::ty_u8);
return mk_lit(cx, sp, lit);
}
pub fn mk_binary(cx: ext_ctxt, sp: span, op: ast::binop,
lhs: @ast::expr, rhs: @ast::expr) -> @ast::expr {
cx.next_id(); // see ast_util::op_expr_callee_id
mk_expr(cx, sp, ast::expr_binary(op, lhs, rhs))
}
pub fn mk_unary(cx: ext_ctxt, sp: span, op: ast::unop, e: @ast::expr)
-> @ast::expr {
cx.next_id(); // see ast_util::op_expr_callee_id
mk_expr(cx, sp, ast::expr_unary(op, e))
}
pub fn mk_raw_path(sp: span, +idents: ~[ast::ident]) -> @ast::path {
let p = @ast::path { span: sp,
global: false,
idents: idents,
rp: None,
types: ~[] };
return p;
}
pub fn mk_raw_path_(sp: span,
+idents: ~[ast::ident],
+types: ~[@ast::Ty])
-> @ast::path {
@ast::path { span: sp,
global: false,
idents: idents,
rp: None,
types: types }
}
pub fn mk_raw_path_global(sp: span, +idents: ~[ast::ident]) -> @ast::path {
@ast::path { span: sp,
global: true,
idents: idents,
rp: None,
types: ~[] }
}
pub fn mk_path(cx: ext_ctxt, sp: span, +idents: ~[ast::ident]) -> @ast::expr {
mk_expr(cx, sp, ast::expr_path(mk_raw_path(sp, idents)))
}
pub fn mk_path_global(cx: ext_ctxt, sp: span, +idents: ~[ast::ident])
-> @ast::expr {
mk_expr(cx, sp, ast::expr_path(mk_raw_path_global(sp, idents)))
}
pub fn mk_access_(cx: ext_ctxt, sp: span, p: @ast::expr, m: ast::ident)
-> @ast::expr {
mk_expr(cx, sp, ast::expr_field(p, m, ~[]))
}
pub fn mk_access(cx: ext_ctxt, sp: span, +p: ~[ast::ident], m: ast::ident)
-> @ast::expr {
let pathexpr = mk_path(cx, sp, p);
return mk_access_(cx, sp, pathexpr, m);
}
pub fn mk_addr_of(cx: ext_ctxt, sp: span, e: @ast::expr) -> @ast::expr {
return mk_expr(cx, sp, ast::expr_addr_of(ast::m_imm, e));
}
pub fn mk_call_(cx: ext_ctxt, sp: span, fn_expr: @ast::expr,
+args: ~[@ast::expr]) -> @ast::expr {
mk_expr(cx, sp, ast::expr_call(fn_expr, args, ast::NoSugar))
}
pub fn mk_call(cx: ext_ctxt, sp: span, +fn_path: ~[ast::ident],
+args: ~[@ast::expr]) -> @ast::expr {
let pathexpr = mk_path(cx, sp, fn_path);
return mk_call_(cx, sp, pathexpr, args);
}
pub fn mk_call_global(cx: ext_ctxt, sp: span, +fn_path: ~[ast::ident],
+args: ~[@ast::expr]) -> @ast::expr {
let pathexpr = mk_path_global(cx, sp, fn_path);
return mk_call_(cx, sp, pathexpr, args);
}
// e = expr, t = type
pub fn mk_base_vec_e(cx: ext_ctxt, sp: span, +exprs: ~[@ast::expr])
-> @ast::expr {
let vecexpr = ast::expr_vec(exprs, ast::m_imm);
mk_expr(cx, sp, vecexpr)
}
pub fn mk_vstore_e(cx: ext_ctxt, sp: span, expr: @ast::expr,
vst: ast::expr_vstore) ->
@ast::expr {
mk_expr(cx, sp, ast::expr_vstore(expr, vst))
}
pub fn mk_uniq_vec_e(cx: ext_ctxt, sp: span, +exprs: ~[@ast::expr])
-> @ast::expr {
mk_vstore_e(cx, sp, mk_base_vec_e(cx, sp, exprs), ast::expr_vstore_uniq)
}
pub fn mk_slice_vec_e(cx: ext_ctxt, sp: span, +exprs: ~[@ast::expr])
-> @ast::expr {
mk_vstore_e(cx, sp, mk_base_vec_e(cx, sp, exprs),
ast::expr_vstore_slice)
}
pub fn mk_fixed_vec_e(cx: ext_ctxt, sp: span, +exprs: ~[@ast::expr])
-> @ast::expr {
mk_vstore_e(cx, sp, mk_base_vec_e(cx, sp, exprs),
ast::expr_vstore_fixed(None))
}
pub fn mk_base_str(cx: ext_ctxt, sp: span, +s: ~str) -> @ast::expr {
let lit = ast::lit_str(@s);
return mk_lit(cx, sp, lit);
}
pub fn mk_uniq_str(cx: ext_ctxt, sp: span, +s: ~str) -> @ast::expr {
mk_vstore_e(cx, sp, mk_base_str(cx, sp, s), ast::expr_vstore_uniq)
}
pub fn mk_field(sp: span, f: &Field) -> ast::field {
codemap::spanned {
node: ast::field_ { mutbl: ast::m_imm, ident: f.ident, expr: f.ex },
span: sp,
}
}
pub fn mk_fields(sp: span, fields: ~[Field]) -> ~[ast::field] {
fields.map(|f| mk_field(sp, f))
}
pub fn mk_struct_e(cx: ext_ctxt,
sp: span,
+ctor_path: ~[ast::ident],
+fields: ~[Field])
-> @ast::expr {
mk_expr(cx, sp,
ast::expr_struct(mk_raw_path(sp, ctor_path),
mk_fields(sp, fields),
option::None::<@ast::expr>))
}
pub fn mk_global_struct_e(cx: ext_ctxt,
sp: span,
+ctor_path: ~[ast::ident],
+fields: ~[Field])
-> @ast::expr {
mk_expr(cx, sp,
ast::expr_struct(mk_raw_path_global(sp, ctor_path),
mk_fields(sp, fields),
option::None::<@ast::expr>))
}
pub fn mk_glob_use(cx: ext_ctxt,
sp: span,
+path: ~[ast::ident]) -> @ast::view_item {
let glob = @codemap::spanned {
node: ast::view_path_glob(mk_raw_path(sp, path), cx.next_id()),
span: sp,
};
@ast::view_item { node: ast::view_item_use(~[glob]),
attrs: ~[],
vis: ast::private,
span: sp }
}
pub fn mk_local(cx: ext_ctxt, sp: span, mutbl: bool,
ident: ast::ident, ex: @ast::expr) -> @ast::stmt {
let pat = @ast::pat {
id: cx.next_id(),
node: ast::pat_ident(
ast::bind_by_copy,
mk_raw_path(sp, ~[ident]),
None),
span: sp,
};
let ty = @ast::Ty { id: cx.next_id(), node: ast::ty_infer, span: sp };
let local = @codemap::spanned {
node: ast::local_ {
is_mutbl: mutbl,
ty: ty,
pat: pat,
init: Some(ex),
id: cx.next_id(),
},
span: sp,
};
let decl = codemap::spanned {node: ast::decl_local(~[local]), span: sp};
@codemap::spanned { node: ast::stmt_decl(@decl, cx.next_id()), span: sp }
}
pub fn mk_block(cx: ext_ctxt, span: span,
+view_items: ~[@ast::view_item],
+stmts: ~[@ast::stmt],
expr: Option<@ast::expr>) -> @ast::expr {
let blk = codemap::spanned {
node: ast::blk_ {
view_items: view_items,
stmts: stmts,
expr: expr,
id: cx.next_id(),
rules: ast::default_blk,
},
span: span,
};
mk_expr(cx, span, ast::expr_block(blk))
}
pub fn mk_block_(cx: ext_ctxt,
span: span,
+stmts: ~[@ast::stmt])
-> ast::blk {
codemap::spanned {
node: ast::blk_ {
view_items: ~[],
stmts: stmts,
expr: None,
id: cx.next_id(),
rules: ast::default_blk,
},
span: span,
}
}
pub fn mk_simple_block(cx: ext_ctxt,
span: span,
expr: @ast::expr)
-> ast::blk {
codemap::spanned {
node: ast::blk_ {
view_items: ~[],
stmts: ~[],
expr: Some(expr),
id: cx.next_id(),
rules: ast::default_blk,
},
span: span,
}
}
pub fn mk_copy(cx: ext_ctxt, sp: span, e: @ast::expr) -> @ast::expr {
mk_expr(cx, sp, ast::expr_copy(e))
}
pub fn mk_managed(cx: ext_ctxt, sp: span, e: @ast::expr) -> @ast::expr {
mk_expr(cx, sp, ast::expr_unary(ast::box(ast::m_imm), e))
}
pub fn mk_pat(cx: ext_ctxt, span: span, +pat: ast::pat_) -> @ast::pat {
@ast::pat { id: cx.next_id(), node: pat, span: span }
}
pub fn mk_pat_ident(cx: ext_ctxt,
span: span,
ident: ast::ident) -> @ast::pat {
mk_pat_ident_with_binding_mode(cx, span, ident, ast::bind_by_copy)
}
pub fn mk_pat_ident_with_binding_mode(cx: ext_ctxt,
span: span,
ident: ast::ident,
bm: ast::binding_mode) -> @ast::pat {
let path = mk_raw_path(span, ~[ ident ]);
let pat = ast::pat_ident(bm, path, None);
mk_pat(cx, span, pat)
}
pub fn mk_pat_enum(cx: ext_ctxt,
span: span,
path: @ast::path,
+subpats: ~[@ast::pat])
-> @ast::pat {
let pat = ast::pat_enum(path, Some(subpats));
mk_pat(cx, span, pat)
}
pub fn mk_pat_struct(cx: ext_ctxt,
span: span,
path: @ast::path,
+field_pats: ~[ast::field_pat])
-> @ast::pat {
let pat = ast::pat_struct(path, field_pats, false);
mk_pat(cx, span, pat)
}
pub fn mk_bool(cx: ext_ctxt, span: span, value: bool) -> @ast::expr {
let lit_expr = ast::expr_lit(@codemap::spanned {
node: ast::lit_bool(value),
span: span });
build::mk_expr(cx, span, lit_expr)
}
pub fn mk_stmt(cx: ext_ctxt, span: span, expr: @ast::expr) -> @ast::stmt {
let stmt_ = ast::stmt_semi(expr, cx.next_id());
@codemap::spanned { node: stmt_, span: span }
}
pub fn mk_ty_path(cx: ext_ctxt,
span: span,
+idents: ~[ ast::ident ])
-> @ast::Ty {
let ty = build::mk_raw_path(span, idents);
let ty = ast::ty_path(ty, cx.next_id());
let ty = @ast::Ty { id: cx.next_id(), node: ty, span: span };
ty
}
pub fn mk_ty_path_global(cx: ext_ctxt,
span: span,
+idents: ~[ ast::ident ])
-> @ast::Ty {
let ty = build::mk_raw_path_global(span, idents);
let ty = ast::ty_path(ty, cx.next_id());
let ty = @ast::Ty { id: cx.next_id(), node: ty, span: span };
ty
}
pub fn mk_simple_ty_path(cx: ext_ctxt,
span: span,
ident: ast::ident)
-> @ast::Ty {
mk_ty_path(cx, span, ~[ ident ])
}
pub fn mk_arg(cx: ext_ctxt,
span: span,
ident: ast::ident,
ty: @ast::Ty)
-> ast::arg {
let arg_pat = mk_pat_ident(cx, span, ident);
ast::arg {
mode: ast::infer(cx.next_id()),
is_mutbl: false,
ty: ty,
pat: arg_pat,
id: cx.next_id()
}
}
pub fn mk_fn_decl(+inputs: ~[ast::arg], output: @ast::Ty) -> ast::fn_decl {
ast::fn_decl { inputs: inputs, output: output, cf: ast::return_val }
}
pub fn mk_ty_param(cx: ext_ctxt,
ident: ast::ident,
bounds: @OptVec<ast::TyParamBound>)
-> ast::TyParam {
ast::TyParam { ident: ident, id: cx.next_id(), bounds: bounds }
}
pub fn mk_lifetime(cx: ext_ctxt,
span: span,
ident: ast::ident) -> ast::Lifetime
{
ast::Lifetime { id: cx.next_id(), span: span, ident: ident }
}
|
