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More function wrapping

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This commit is contained in:
greg 2016-12-25 11:19:17 -08:00
parent 2ad65a1c5d
commit 2107e6344e
1 changed files with 19 additions and 5 deletions
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24
src/compilation.rs
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@ -4,7 +4,6 @@ use self::llvm_sys::prelude::*;
use self::llvm_sys::core;
use std::ptr;
use parser::{ParseResult, AST, ASTNode, Prototype, Function, Expression};
mod LLVMWrap {
@ -12,6 +11,8 @@ mod LLVMWrap {
use self::llvm_sys::prelude::*;
use self::llvm_sys::core;
use std::ptr;
use std::ffi::CString;
pub fn create_context() -> LLVMContextRef {
unsafe {
core::LLVMContextCreate()
@ -28,6 +29,20 @@ mod LLVMWrap {
core::LLVMCreateBuilderInContext(context)
}
}
pub fn AppendBasicBlockInContext(context: LLVMContextRef, function: LLVMValueRef, name: &str) -> LLVMBasicBlockRef {
let c_name = CString::new(name).unwrap();
unsafe {
core::LLVMAppendBasicBlockInContext(context, function, c_name.as_ptr())
}
}
pub fn AddFunction(module: LLVMModuleRef, name: &str, function_type: LLVMTypeRef) -> LLVMValueRef {
let c_name = CString::new(name).unwrap();
unsafe {
core::LLVMAddFunction(module, c_name.as_ptr(), function_type)
}
}
}
pub fn compile_ast(ast: AST) {
@ -39,11 +54,10 @@ pub fn compile_ast(ast: AST) {
let void = core::LLVMVoidTypeInContext(context);
let function_type = core::LLVMFunctionType(void, ptr::null_mut(), 0, 0);
let function = core::LLVMAddFunction(module, b"nop\0".as_ptr() as *const _,
function_type);
let function = LLVMWrap::AddFunction(module, "nop", function_type);
let bb = LLVMWrap::AppendBasicBlockInContext(context, function, "entry");
let bb = core::LLVMAppendBasicBlockInContext(context, function,
b"entry\0".as_ptr() as *const _);
core::LLVMPositionBuilderAtEnd(builder, bb);
// Emit a `ret void` into the function