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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">// @flow
import { builtinTypes } from 'walt-syntax';
import opcode from '../emitter/opcode';
import curry from 'curry';
import invariant from 'invariant';
import { I32, I64, F32, F64 } from '../emitter/value_type';
import { LOCAL_INDEX, GLOBAL_INDEX, TYPE_CONST } from '../semantics/metadata';
import print from '../utils/print-node';
import type { IntermediateVariableType } from './flow/types';
import type { NodeType } from '../flow/types';
export const scopeOperation = curry((op, node) => {
const local = node.meta[LOCAL_INDEX];
const _global = node.meta[GLOBAL_INDEX];
const index = local != null ? local : _global;
invariant(
index != null,
`Undefined index for scope Operation. Possibly missing metadata. op: ${JSON.stringify(
op
)} node: ${print(node)}`
);
const kind = local != null ? op + 'Local' : op + 'Global';
const params = [Number(index)];
return {
kind: opcode[kind],
params,
debug: `${node.value}<${node.meta.ALIAS || node.type}>`,
};
});
// clean this up
export const getType = (str: ?string): number => {
switch (str) {
case builtinTypes.f32:
return F32;
case builtinTypes.f64:
return F64;
case builtinTypes.i64:
return I64;
case builtinTypes.i32:
default:
return I32;
}
};
export const isBuiltinType = (type: ?string): boolean => {
return typeof type === 'string' && builtinTypes[type] != null;
};
export const generateValueType = (
node: NodeType
): IntermediateVariableType => ({
mutable: node.meta[TYPE_CONST] ? 0 : 1,
type: getType(node.type),
});
export const setInScope = scopeOperation('Set');
export const getInScope = scopeOperation('Get');
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