moved crates in lib/ to src/, renamed crates, modified some files' text (#660)

2019-01-28 18:56:54 -05:00
parent 54959cf5bb
commit 747ad3c4c5
508 changed files with 94 additions and 92 deletions
--- a/cranelift/wasm/src/module_translator.rs
+++ b/cranelift/wasm/src/module_translator.rs
@@ -0,0 +1,143 @@
+//! Translation skeleton that traverses the whole WebAssembly module and call helper functions
+//! to deal with each part of it.
+use crate::environ::{ModuleEnvironment, WasmResult};
+use crate::sections_translator::{
+    parse_code_section, parse_data_section, parse_element_section, parse_export_section,
+    parse_function_section, parse_global_section, parse_import_section, parse_memory_section,
+    parse_start_section, parse_table_section, parse_type_section,
+};
+use cranelift_codegen::timing;
+use wasmparser::{ModuleReader, SectionCode};
+
+/// Translate a sequence of bytes forming a valid Wasm binary into a list of valid Cranelift IR
+/// [`Function`](../codegen/ir/function/struct.Function.html).
+pub fn translate_module<'data>(
+    data: &'data [u8],
+    environ: &mut ModuleEnvironment<'data>,
+) -> WasmResult<()> {
+    let _tt = timing::wasm_translate_module();
+    let mut reader = ModuleReader::new(data)?;
+
+    reader.skip_custom_sections()?;
+    if reader.eof() {
+        return Ok(());
+    }
+    let mut section = reader.read()?;
+
+    if let SectionCode::Type = section.code {
+        let types = section.get_type_section_reader()?;
+        parse_type_section(types, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Import = section.code {
+        let imports = section.get_import_section_reader()?;
+        parse_import_section(imports, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Function = section.code {
+        let functions = section.get_function_section_reader()?;
+        parse_function_section(functions, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Table = section.code {
+        let tables = section.get_table_section_reader()?;
+        parse_table_section(tables, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Memory = section.code {
+        let memories = section.get_memory_section_reader()?;
+        parse_memory_section(memories, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Global = section.code {
+        let globals = section.get_global_section_reader()?;
+        parse_global_section(globals, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Export = section.code {
+        let exports = section.get_export_section_reader()?;
+        parse_export_section(exports, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Start = section.code {
+        let start = section.get_start_section_content()?;
+        parse_start_section(start, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Element = section.code {
+        let elements = section.get_element_section_reader()?;
+        parse_element_section(elements, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Code = section.code {
+        let code = section.get_code_section_reader()?;
+        parse_code_section(code, environ)?;
+
+        reader.skip_custom_sections()?;
+        if reader.eof() {
+            return Ok(());
+        }
+        section = reader.read()?;
+    }
+
+    if let SectionCode::Data = section.code {
+        let data = section.get_data_section_reader()?;
+        parse_data_section(data, environ)?;
+    }
+
+    Ok(())
+}