63 lines
2.3 KiB
Rust
63 lines
2.3 KiB
Rust
//! Parsed representation of `set` and `isa` commands.
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//!
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//! A test case file can contain `set` commands that set ISA-independent settings, and it can
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//! contain `isa` commands that select an ISA and applies ISA-specific settings.
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//!
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//! If a test case file contains `isa` commands, the tests will only be run against the specified
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//! ISAs. If the file contains no `isa` commands, the tests will be run against all supported ISAs.
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use cretonne::settings::{Flags, Configurable, Error as SetError};
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use cretonne::isa::TargetIsa;
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use error::{Result, Location};
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use testcommand::TestOption;
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/// The ISA specifications in a `.cton` file.
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pub enum IsaSpec {
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/// The parsed file does not contain any `isa` commands, but it may contain `set` commands
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/// which are reflected in the finished `Flags` object.
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None(Flags),
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/// The parsed file does contains `isa` commands.
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/// Each `isa` command is used to configure a `TargetIsa` trait object.
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Some(Vec<Box<TargetIsa>>),
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}
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impl IsaSpec {
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/// If the `IsaSpec` contains exactly 1 `TargetIsa` we return a reference to it
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pub fn unique_isa(&self) -> Option<&TargetIsa> {
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if let IsaSpec::Some(ref isa_vec) = *self {
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if isa_vec.len() == 1 {
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return Some(&*isa_vec[0]);
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}
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}
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None
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}
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}
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/// Parse an iterator of command line options and apply them to `config`.
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pub fn parse_options<'a, I>(iter: I, config: &mut Configurable, loc: &Location) -> Result<()>
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where
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I: Iterator<Item = &'a str>,
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{
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for opt in iter.map(TestOption::new) {
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match opt {
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TestOption::Flag(name) => {
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match config.enable(name) {
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Ok(_) => {}
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Err(SetError::BadName) => return err!(loc, "unknown flag '{}'", opt),
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Err(_) => return err!(loc, "not a boolean flag: '{}'", opt),
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}
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}
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TestOption::Value(name, value) => {
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match config.set(name, value) {
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Ok(_) => {}
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Err(SetError::BadName) => return err!(loc, "unknown setting '{}'", opt),
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Err(SetError::BadType) => return err!(loc, "invalid setting type: '{}'", opt),
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Err(SetError::BadValue) => return err!(loc, "invalid setting value: '{}'", opt),
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}
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}
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}
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}
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Ok(())
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}
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