reverse dependency

https://github.com/CraneStation/wasmtime/pull/186#discussion_r302780035

wasmtime-environ/Cargo.toml

@@ -20,7 +20,6 @@ failure = { version = "0.1.3", default-features = false }
 failure_derive = { version = "0.1.3", default-features = false }
 indexmap = "1.0.2"
 rayon = "1.0"
-wasmtime-debug = { path = "../wasmtime-debug", default-features = false }
 
 [features]
 default = ["std"]

wasmtime-environ/src/address_map.rs

@@ -0,0 +1,37 @@
+//! Data structures to provide transformation of the source
+// addresses of a WebAssembly module into the native code.
+
+use cranelift_codegen::ir;
+use cranelift_entity::PrimaryMap;
+use cranelift_wasm::DefinedFuncIndex;
+use std::vec::Vec;
+
+/// Single source location to generated address mapping.
+#[derive(Debug, Clone)]
+pub struct InstructionAddressMap {
+    /// Original source location.
+    pub srcloc: ir::SourceLoc,
+
+    /// Generated instructions offset.
+    pub code_offset: usize,
+
+    /// Generated instructions length.
+    pub code_len: usize,
+}
+
+/// Function and its instructions addresses mappings.
+#[derive(Debug, Clone)]
+pub struct FunctionAddressMap {
+    /// Instructions maps.
+    /// The array is sorted by the InstructionAddressMap::code_offset field.
+    pub instructions: Vec<InstructionAddressMap>,
+
+    /// Generated function body offset if applicable, otherwise 0.
+    pub body_offset: usize,
+
+    /// Generated function body length.
+    pub body_len: usize,
+}
+
+/// Module functions addresses mappings.
+pub type ModuleAddressMap = PrimaryMap<DefinedFuncIndex, FunctionAddressMap>;

wasmtime-environ/src/compilation.rs

@@ -1,6 +1,7 @@
 //! A `Compilation` contains the compiled function bodies for a WebAssembly
 //! module.
 
+use crate::address_map::ModuleAddressMap;
 use crate::module;
 use crate::module_environ::FunctionBodyData;
 use cranelift_codegen::{binemit, ir, isa, CodegenError};
@@ -8,7 +9,6 @@ use cranelift_entity::PrimaryMap;
 use cranelift_wasm::{DefinedFuncIndex, FuncIndex, WasmError};
 use std::ops::Range;
 use std::vec::Vec;
-use wasmtime_debug::ModuleAddressMap;
 
 /// Compiled machine code: body and jump table offsets.
 #[derive(Debug, Clone)]

wasmtime-environ/src/cranelift.rs

@@ -1,5 +1,6 @@
 //! Support for compiling with Cranelift.
 
+use crate::address_map::{FunctionAddressMap, InstructionAddressMap, ModuleAddressMap};
 use crate::compilation::{
     CodeAndJTOffsets, Compilation, CompileError, Relocation, RelocationTarget, Relocations,
 };
@@ -18,7 +19,6 @@ use cranelift_entity::PrimaryMap;
 use cranelift_wasm::{DefinedFuncIndex, FuncIndex, FuncTranslator};
 use rayon::prelude::{IntoParallelRefIterator, ParallelIterator};
 use std::vec::Vec;
-use wasmtime_debug::{FunctionAddressMap, InstructionAddressMap, ModuleAddressMap};
 
 /// Implementation of a relocation sink that just saves all the information for later
 pub struct RelocSink {

wasmtime-environ/src/lib.rs

@@ -37,6 +37,7 @@ extern crate std;
 #[macro_use]
 extern crate failure_derive;
 
+mod address_map;
 mod compilation;
 mod func_environ;
 mod module;
@@ -48,6 +49,7 @@ pub mod cranelift;
 #[cfg(feature = "lightbeam")]
 pub mod lightbeam;
 
+pub use crate::address_map::{FunctionAddressMap, InstructionAddressMap, ModuleAddressMap};
 pub use crate::compilation::{
     Compilation, CompileError, Compiler, Relocation, RelocationTarget, Relocations,
 };