update chalk with new organization

Author: mark-i-m

src/traits/chalk-overview.md

@@ -70,16 +70,17 @@ impls, and struct definitions. Parsing is often the first "phase" of
 transformation that a program goes through in order to become a format that
 chalk can understand.
 
-### Rust Intermediate Representation ([rust_ir])
+### Rust Intermediate Representation ([chalk_rust_ir])
 
 After getting the AST we convert it to a more convenient intermediate
-representation called [`rust_ir`][rust_ir]. This is sort of analogous to the
-[HIR] in Rust. The process of converting to IR is called *lowering*.
+representation called [`chalk_rust_ir`][chalk_rust_ir]. This is sort of
+analogous to the [HIR] in Rust. The process of converting to IR is called
+*lowering*.
 
-The [`rust_ir::Program`][rust_ir-program] struct contains some "rust things"
+The [`chalk::program::Program`][chalk-program] struct contains some "rust things"
 but indexed and accessible in a different way. For example, if you have a
 type like `Foo<Bar>`, we would represent `Foo` as a string in the AST but in
-`rust_ir::Program`, we use numeric indices (`ItemId`).
+`chalk::program::Program`, we use numeric indices (`ItemId`).
 
 The [IR source code][ir-code] contains the complete definition.
 
@@ -120,14 +121,14 @@ forall<T> { (Vec<T>: Clone) :- (T: Clone) }
 This rule dictates that `Vec<T>: Clone` is only satisfied if `T: Clone` is also
 satisfied (i.e. "provable").
 
-Similar to [`rust_ir::Program`][rust_ir-program] which has "rust-like
+Similar to [`chalk::program::Program`][chalk-program] which has "rust-like
 things", chalk_ir defines [`ProgramEnvironment`] which which is "pure logic".
 The main field in that struct is `program_clauses`, which contains the
 [`ProgramClause`]s generated by the rules module.
 
-#### Rules
+### Rules ([chalk_rules])
 
-The `rules` module ([source code][rules-src]) defines the logic rules we use
+The `chalk_rules` crate ([source code][chalk_rules]) defines the logic rules we use
 for each item in the Rust IR. It works by iterating over every trait, impl,
 etc. and emitting the rules that come from each one.
 
@@ -136,13 +137,13 @@ etc. and emitting the rules that come from each one.
 #### Well-formedness checks
 
 As part of lowering to logic, we also do some "well formedness" checks. See
-the [`rules::wf` source code][rules-wf-src] for where those are done.
+the [`chalk_rules::wf` source code][rules-wf-src] for where those are done.
 
 *See also: [Well-formedness checking][wf-checking]*
 
 #### Coherence
 
-The function `record_specialization_priorities` in the `coherence` module
+The method `CoherenceSolver::specialization_priorities` in the `coherence` module
 ([source code][coherence-src]) checks "coherence", which means that it
 ensures that two impls of the same trait for the same type cannot exist.
 
@@ -158,18 +159,19 @@ queries is called the *solver*.
 
 Chalk's functionality is broken up into the following crates:
 - [**chalk_engine**][chalk_engine]: Defines the core [SLG solver][slg].
+- [**chalk_rust_ir**][chalk_rust_ir], containing the "HIR-like" form of the AST
 - [**chalk_ir**][chalk_ir]: Defines chalk's internal representation of
   types, lifetimes, and goals.
 - [**chalk_solve**][chalk_solve]: Combines `chalk_ir` and `chalk_engine`,
   effectively.
   - [`chalk_engine::context`][engine-context] provides the necessary hooks.
 - [**chalk_parse**][chalk_parse]: Defines the raw AST and a parser.
+- [**chalk_rules**][chalk_rules]: which implements logic rules converting
+  `chalk_rust_ir` to `chalk_ir`
+  - Defines the `coherence` module, which implements coherence rules
 - [**chalk**][doc-chalk]: Brings everything together. Defines the following
   modules:
-  - [`rust_ir`][rust_ir], containing the "HIR-like" form of the AST
-    - `rust_ir::lowering`, which converts AST to `rust_ir`
-  - `rules`, which implements logic rules converting `rust_ir` to `chalk_ir`
-  - `coherence`, which implements coherence rules
+  - `chalk::lowering`, which converts AST to `chalk_rust_ir`
   - Also includes [chalki][chalki], chalk's REPL.
 
 [Browse source code on GitHub](https://github.com/rust-lang/chalk)
@@ -188,7 +190,7 @@ which is expected to lower to logic successfully, and a set of queries
 tests support specifying only a prefix of the output.
 
 **Lowering tests** check the stages that occur before we can issue queries
-to the solver: the [lowering to rust_ir][chalk-test-lowering], and the
+to the solver: the [lowering to chalk_rust_ir][chalk-test-lowering], and the
 [well-formedness checks][chalk-test-wf] that occur after that.
 
 ### Testing internals
@@ -229,29 +231,28 @@ Likewise, lowering tests use the [`lowering_success!` and
 [universal quantification]: https://en.wikipedia.org/wiki/Universal_quantification
 
 [`ProgramClause`]: https://rust-lang.github.io/chalk/doc/chalk_ir/enum.ProgramClause.html
-[`ProgramEnvironment`]: https://rust-lang.github.io/chalk/doc/chalk_ir/struct.ProgramEnvironment.html
+[`ProgramEnvironment`]: http://rust-lang.github.io/chalk/doc/chalk/program_environment/struct.ProgramEnvironment.html
 [chalk_engine]: https://rust-lang.github.io/chalk/doc/chalk_engine/index.html
 [chalk_ir]: https://rust-lang.github.io/chalk/doc/chalk_ir/index.html
 [chalk_parse]: https://rust-lang.github.io/chalk/doc/chalk_parse/index.html
 [chalk_solve]: https://rust-lang.github.io/chalk/doc/chalk_solve/index.html
+[chalk_rules]: https://rust-lang.github.io/chalk/doc/chalk_rules/index.html
+[chalk_rust_ir]: https://rust-lang.github.io/chalk/doc/chalk_rust_ir/index.html
 [doc-chalk]: https://rust-lang.github.io/chalk/doc/chalk/index.html
 [engine-context]: https://rust-lang.github.io/chalk/doc/chalk_engine/context/index.html
-[rust_ir-program]: https://rust-lang.github.io/chalk/doc/chalk/rust_ir/struct.Program.html
-[rust_ir]: https://rust-lang.github.io/chalk/doc/chalk/rust_ir/index.html
+[chalk-program]: http://rust-lang.github.io/chalk/doc/chalk/program/struct.Program.html
 
-[binders-struct]: https://github.com/rust-lang/chalk/blob/94a1941a021842a5fcb35cd043145c8faae59f08/src/ir.rs#L661
-[chalk-ast]: https://github.com/rust-lang/chalk/blob/master/chalk-parse/src/ast.rs
+[binders-struct]: http://rust-lang.github.io/chalk/doc/chalk_ir/struct.Binders.html
+[chalk-ast]: http://rust-lang.github.io/chalk/doc/chalk_parse/ast/index.html
 [chalk-test-example]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/test.rs#L115
 [chalk-test-lowering-example]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/rust_ir/lowering/test.rs#L8-L31
 [chalk-test-lowering]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/rust_ir/lowering/test.rs
 [chalk-test-wf]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/rules/wf/test.rs#L1
 [chalki]: https://rust-lang.github.io/chalk/doc/chalki/index.html
 [clause]: https://github.com/rust-lang/chalk/blob/master/GLOSSARY.md#clause
-[coherence-src]: https://github.com/rust-lang/chalk/blob/master/src/coherence.rs
-[ir-code]: https://github.com/rust-lang/chalk/blob/master/src/rust_ir.rs
-[rules-environment]: https://github.com/rust-lang/chalk/blob/94a1941a021842a5fcb35cd043145c8faae59f08/src/rules.rs#L9
-[rules-src]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/rules.rs
-[rules-wf-src]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/rules/wf.rs
+[coherence-src]: http://rust-lang.github.io/chalk/doc/chalk_rules/coherence/index.html
+[ir-code]: http://rust-lang.github.io/chalk/doc/chalk_rust_ir/
+[rules-wf-src]: http://rust-lang.github.io/chalk/doc/chalk_rules/wf/index.html
 [solve_goal]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/test.rs#L85
 [test-lowering-macros]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/test_util.rs#L21-L54
 [test-macro]: https://github.com/rust-lang/chalk/blob/4bce000801de31bf45c02f742a5fce335c9f035f/src/test.rs#L33

src/traits/lowering-rules.md

@@ -28,10 +28,10 @@ comment like so:
     // Rule Foo-Bar-Baz
 
 The reference implementation of these rules is to be found in
-[`chalk/src/rules.rs`][chalk_rules]. They are also ported in rustc in the
-[`librustc_traits`][librustc_traits] crate.
+[`chalk/chalk-rules/src/clauses.rs`][chalk_rules]. They are also ported in
+rustc in the [`librustc_traits`][librustc_traits] crate.
 
-[chalk_rules]: https://github.com/rust-lang-nursery/chalk/blob/master/src/rules.rs
+[chalk_rules]: https://github.com/rust-lang/chalk/blob/master/chalk-rules/src/clauses.rs
 [librustc_traits]: https://github.com/rust-lang/rust/tree/master/src/librustc_traits
 
 ## Lowering where clauses

src/traits/wf.md

@@ -11,14 +11,14 @@ to prove it using the lowered rules we described in the
 [lowering rules](./lowering-rules.md) chapter. If we are able to prove it, we
 say that the construct is well-formed. If not, we report an error to the user.
 
-Well-formedness checking happens in the [`src/rules/wf.rs`][wf] module in
-chalk. After you have read this chapter, you may find useful to see an
-extended set of examples in the [`src/rules/wf/test.rs`][wf_test] submodule.
+Well-formedness checking happens in the [`chalk/chalk-rules/src/wf.rs`][wf]
+module in chalk. After you have read this chapter, you may find useful to see
+an extended set of examples in the [`chalk/src/test/wf.rs`][wf_test] submodule.
 
 The new-style WF checking has not been implemented in rustc yet.
 
-[wf]: https://github.com/rust-lang-nursery/chalk/blob/master/src/rules/wf.rs
-[wf_test]: https://github.com/rust-lang-nursery/chalk/blob/master/src/rules/wf/test.rs
+[wf]: https://github.com/rust-lang/chalk/blob/master/chalk-rules/src/wf.rs
+[wf_test]: https://github.com/rust-lang/chalk/blob/master/src/test/wf.rs
 
 We give here a complete reference of the generated goals for each Rust
 declaration.