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# Conflicts:
#	crates/file-info/src/ui.rs
This commit is contained in:
nora 2021-08-25 22:06:35 +02:00
commit a1620476d8
8 changed files with 105 additions and 63 deletions
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8
crates/class-struct/Cargo.toml Normal file
View file

@ -0,0 +1,8 @@
[package]
name = "class-struct"
version = "0.1.0"
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

23
crates/class-struct/src/lib.rs Normal file
View file

@ -0,0 +1,23 @@
#![allow(dead_code)]
struct MethodSignature {
args: Vec<Type>,
return_t: Type,
}
/// A Java type, found in signatures
enum Type {
/// V
Void,
/// B
Boolean,
Byte,
Short,
Int,
Long,
Float,
Double,
Object,
/// [
Array(Box<Type>),
}

22
crates/file-info/src/ui.rs
View file

@ -1,4 +1,4 @@
use file_parser::ClassFile;
use file_parser::{ClassFile, ParseErr};
use std::error::Error;
use std::io::Write;
@ -17,11 +17,11 @@ pub fn display_class<W: Write>(mut w: W, class: &ClassFile) -> Result<(), Box<dy
w,
"class {} extends {}{} {{",
&class.this_class.get(cp).name_index.get(cp),
match class.super_class.maybe_get(cp) {
match class.super_class.get(cp) {
None => "<none>",
Some(class) => &class.name_index.get(cp),
},
if class.interfaces.len() == 0 {
}
if class.interfaces.is_empty() {
"".to_string()
} else {
format!(
@ -31,8 +31,10 @@ pub fn display_class<W: Write>(mut w: W, class: &ClassFile) -> Result<(), Box<dy
.interfaces
.iter()
.map(|i| i.get(cp))
.collect::<Result<Vec<_>, ParseErr>>()?
.iter()
.map(|i| i.name_index.get(cp))
.collect::<Vec<_>>()
.collect::<Result<Vec<_>, ParseErr>>()?
.join(",")
)
},
@ -40,7 +42,7 @@ pub fn display_class<W: Write>(mut w: W, class: &ClassFile) -> Result<(), Box<dy
writeln!(w, " Attributes:")?;
for attr in &class.attributes {
writeln!(w, " {}", &attr.attribute_name_index.get(cp))?;
writeln!(w, " {}", &attr.attribute_name_index.get(cp)?)?;
}
writeln!(w)?;
@ -49,8 +51,8 @@ pub fn display_class<W: Write>(mut w: W, class: &ClassFile) -> Result<(), Box<dy
writeln!(
w,
" {} {}",
&field.descriptor_index.get(cp),
&field.name_index.get(cp)
&field.descriptor_index.get(cp)?,
&field.name_index.get(cp)?
)?;
}
writeln!(w)?;
@ -60,8 +62,8 @@ pub fn display_class<W: Write>(mut w: W, class: &ClassFile) -> Result<(), Box<dy
writeln!(
w,
" {} {}",
&method.descriptor_index.get(cp),
&method.name_index.get(cp),
&method.descriptor_index.get(cp)?,
&method.name_index.get(cp)?,
)?;
}

44
crates/file-parser/src/lib.rs
View file

@ -38,7 +38,7 @@ impl<'a> Data<'a> {
fn u1(&mut self) -> Result<u1> {
let item = self.data.get(self.pointer).cloned();
self.pointer += 1;
item.ok_or(ParseErr("No u1 left".to_string()))
item.ok_or_else(|| ParseErr("No u1 left".to_string()))
}
fn u2(&mut self) -> Result<u2> {
@ -60,7 +60,7 @@ impl<'a> Data<'a> {
self.data
.get(self.pointer - 1)
.cloned()
.ok_or(ParseErr("Last u1 not found".to_string()))
.ok_or_else(|| ParseErr("Last u1 not found".to_string()))
}
fn last_u2(&self) -> Result<u2> {
@ -68,7 +68,7 @@ impl<'a> Data<'a> {
.data
.get(self.pointer - 2)
.cloned()
.ok_or(ParseErr("Last u2 not found".to_string()))?;
.ok_or_else(|| ParseErr("Last u2 not found".to_string()))?;
Ok(((last2u1 as u2) << 8) | self.last_u1()? as u2)
}
@ -77,12 +77,12 @@ impl<'a> Data<'a> {
.data
.get(self.pointer - 3)
.cloned()
.ok_or(ParseErr("Last 2 u1 in last u4 not found".to_string()))?;
.ok_or_else(|| ParseErr("Last 2 u1 in last u4 not found".to_string()))?;
let last3u1 = self
.data
.get(self.pointer - 4)
.cloned()
.ok_or(ParseErr("Last 3 u1 in last u4 not found".to_string()))?;
.ok_or_else(|| ParseErr("Last 3 u1 in last u4 not found".to_string()))?;
Ok(((last3u1 as u4) << 24) | ((last2u1 as u4) << 16) | self.last_u2()? as u4)
}
}
@ -262,7 +262,7 @@ impl Parse for CpInfo {
name_and_type_index: data.cp(cp)?,
}),
},
_ => Err(ParseErr(format!("Invalid CPInfo tag: {}", tag)))?,
_ => return Err(ParseErr(format!("Invalid CPInfo tag: {}", tag))),
})
}
}
@ -346,10 +346,12 @@ impl Parse for StackMapFrame {
locals: parse_vec(data.u2()?, data, cp)?,
stack: parse_vec(data.u2()?, data, cp)?,
},
_ => Err(ParseErr(format!(
"Invalid StackMapFrame type: {}",
frame_type
)))?,
_ => {
return Err(ParseErr(format!(
"Invalid StackMapFrame type: {}",
frame_type
)))
}
})
}
}
@ -373,10 +375,12 @@ impl Parse for VerificationTypeInfo {
tag,
offset: data.u2()?,
},
_ => Err(ParseErr(format!(
"Invalid VerificationTypeInfo tag: {}",
tag
)))?,
_ => {
return Err(ParseErr(format!(
"Invalid VerificationTypeInfo tag: {}",
tag
)))
}
})
}
}
@ -461,10 +465,12 @@ impl Parse for AnnotationElementValueValue {
'[' => Self::ArrayValue {
values: parse_vec(data.u2()?, data, cp)?,
},
_ => Err(ParseErr(format!(
"Invalid AnnotationElementValueValue tag: {}",
tag
)))?,
_ => {
return Err(ParseErr(format!(
"Invalid AnnotationElementValueValue tag: {}",
tag
)))
}
})
}
}
@ -551,7 +557,7 @@ impl AttributeInfo {
_ => return Err(ParseErr("Constant Pool index out of Bounds".to_string())),
};
let mut data = Data::new(&content);
let mut data = Data::new(content);
self.resolve_attribute_inner(index, len, info, &mut data, pool)
}

60
crates/file-parser/src/model/mod.rs
View file

@ -467,29 +467,29 @@ pub enum ClassAccessFlag {
#[repr(u16)]
#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
pub enum MethodAccessFlag {
// Declared public; may be accessed from outside its package.
/// Declared public; may be accessed from outside its package.
PUBLIC = 0x0001,
// Declared private; accessible only within the defining class.
/// Declared private; accessible only within the defining class.
PRIVATE = 0x0002,
// Declared protected; may be accessed within subclasses.
/// Declared protected; may be accessed within subclasses.
PROTECTED = 0x0004,
// Declared static.
/// Declared static.
STATIC = 0x0008,
// Declared final; must not be overridden.
/// Declared final; must not be overridden.
FINAL = 0x0010,
// Declared synchronized; invocation is wrapped by a monitor use.
/// Declared synchronized; invocation is wrapped by a monitor use.
SYNCHRONIZED = 0x0020,
// A bridge method, generated by the compiler.
/// A bridge method, generated by the compiler.
BRIDGE = 0x0040,
// Declared with variable number of arguments.
/// Declared with variable number of arguments.
VARARGS = 0x0080,
// Declared native; implemented in a language other than Java.
/// Declared native; implemented in a language other than Java.
NATIVE = 0x0100,
// Declared abstract; no implementation is provided.
/// Declared abstract; no implementation is provided.
ABSTRACT = 0x0400,
// Declared strictfp; floating-point mode is FP-strict.
/// Declared strictfp; floating-point mode is FP-strict.
STRICT = 0x0800,
// Declared synthetic; not present in the source code.
// /Declared synthetic; not present in the source code.
SYNTHETIC = 0x1000,
}
@ -497,23 +497,23 @@ pub enum MethodAccessFlag {
#[repr(u16)]
#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
pub enum InnerClassAccessFlags {
/// Marked or implicitly public in source.
/// Marked or implicitly public in source.
PUBLIC = 0x0001,
/// Marked private in source.
/// Marked private in source.
PRIVATE = 0x0002,
/// Marked protected in source.
/// Marked protected in source.
PROTECTED = 0x0004,
/// Marked or implicitly static in source.
/// Marked or implicitly static in source.
STATIC = 0x0008,
/// Marked final in source.
/// Marked final in source.
FINAL = 0x0010,
/// Was an interface in source.
/// Was an interface in source.
INTERFACE = 0x0200,
/// Marked or implicitly abstract in source.
/// Marked or implicitly abstract in source.
ABSTRACT = 0x0400,
/// Declared synthetic; not present in the source code.
/// Declared synthetic; not present in the source code.
SYNTHETIC = 0x1000,
/// Declared as an annotation type.
/// Declared as an annotation type.
ANNOTATION = 0x2000,
/// Declared as an enum type.
ENUM = 0x4000,
@ -523,22 +523,22 @@ pub enum InnerClassAccessFlags {
#[repr(u16)]
#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
pub enum FieldAccessFlags {
/// Declared public; may be accessed from outside its package.
/// Declared public; may be accessed from outside its package.
PUBLIC = 0x0001,
/// Declared private; usable only within the defining class.
/// Declared private; usable only within the defining class.
PRIVATE = 0x0002,
/// Declared protected; may be accessed within subclasses.
/// Declared protected; may be accessed within subclasses.
PROTECTED = 0x0004,
/// Declared static.
/// Declared static.
STATIC = 0x0008,
/// Declared final; never directly assigned to after object construction (JLS §17.5).
/// Declared final; never directly assigned to after object construction (JLS §17.5).
FINAL = 0x0010,
/// Declared volatile; cannot be cached.
/// Declared volatile; cannot be cached.
VOLATILE = 0x0040,
/// Declared transient; not written or read by a persistent object manager.
/// Declared transient; not written or read by a persistent object manager.
TRANSIENT = 0x0080,
/// Declared synthetic; not present in the source code.
/// Declared synthetic; not present in the source code.
SYNTHETIC = 0x1000,
/// Declared as an element of an enum.
/// Declared as an element of an enum.
ENUM = 0x4000,
}

5
crates/machine/src/model.rs
View file

@ -22,9 +22,8 @@ impl OperandStack {
}
pub fn swap(&mut self) {
let tmp = self.arr[(self.sp - 1) as usize];
self.arr[(self.sp - 1) as usize] = self.arr[(self.sp - 2) as usize];
self.arr[(self.sp - 2) as usize] = tmp;
self.arr
.swap((self.sp - 2) as usize, (self.sp - 2) as usize);
}
}